diff options
| author | konstantin@mysql.com <> | 2004-07-21 17:36:26 -0700 |
|---|---|---|
| committer | konstantin@mysql.com <> | 2004-07-21 17:36:26 -0700 |
| commit | d2c1f3fc379d11ec236cb786726be4ba647b3b6f (patch) | |
| tree | e1c502ab20782af7b4564054ae3c46a321ccbb4e | |
| parent | 58bdb6221ce902ed5a17c7130f2352c3e33f085c (diff) | |
| download | mariadb-git-d2c1f3fc379d11ec236cb786726be4ba647b3b6f.tar.gz | |
First step of implementation of WL#1518 "make bundled zlib
usable for unix builds": zlib 1.2.1 imported
107 files changed, 5734 insertions, 16663 deletions
diff --git a/VC++Files/zlib/zlib.dsp b/VC++Files/zlib/zlib.dsp index 7093c51d558..3a2e25fe2b0 100644 --- a/VC++Files/zlib/zlib.dsp +++ b/VC++Files/zlib/zlib.dsp @@ -122,31 +122,23 @@ SOURCE=.\crc32.c # End Source File # Begin Source File -SOURCE=.\deflate.c -# End Source File -# Begin Source File - -SOURCE=.\deflate.h +SOURCE=.\crc32.h # End Source File # Begin Source File -SOURCE=.\gzio.c -# End Source File -# Begin Source File - -SOURCE=.\infblock.c +SOURCE=.\deflate.c # End Source File # Begin Source File -SOURCE=.\infblock.h +SOURCE=.\deflate.h # End Source File # Begin Source File -SOURCE=.\infcodes.c +SOURCE=.\gzio.c # End Source File # Begin Source File -SOURCE=.\infcodes.h +SOURCE=.\infback.c # End Source File # Begin Source File @@ -166,7 +158,7 @@ SOURCE=.\inflate.c # End Source File # Begin Source File -SOURCE=.\inftrees.c +SOURCE=.\inflate.h # End Source File # Begin Source File @@ -174,11 +166,11 @@ SOURCE=.\inftrees.h # End Source File # Begin Source File -SOURCE=.\infutil.c +SOURCE=.\inftrees.c # End Source File # Begin Source File -SOURCE=.\infutil.h +SOURCE=.\inftrees.h # End Source File # Begin Source File diff --git a/mysys/my_crc32.c b/mysys/my_crc32.c index 5514b01ede2..db1beb58263 100644 --- a/mysys/my_crc32.c +++ b/mysys/my_crc32.c @@ -17,20 +17,7 @@ #include "mysys_priv.h" #ifndef HAVE_COMPRESS - -/* minimal set of defines for using crc32() from zlib codebase */ -#define _ZLIB_H -#define ZEXPORT -#define Z_NULL 0 -#define OF(args) args #undef DYNAMIC_CRC_TABLE -typedef uchar Byte; -typedef uchar Bytef; -typedef uint uInt; -typedef ulong uLong; -typedef ulong uLongf; - #include "../zlib/crc32.c" - #endif diff --git a/zlib/ChangeLog b/zlib/ChangeLog index bf2e3f925bc..243a5062fae 100644 --- a/zlib/ChangeLog +++ b/zlib/ChangeLog @@ -1,5 +1,251 @@ - ChangeLog file for zlib + ChangeLog file for zlib +Changes in port for MySQL (19 July 2004) +- removed contrib, nt, os2, amiga, directories and some other files not used +in MySQL distribution. If you are working on porting MySQL to one of rare +platforms, you might find worth looking at the original zlib distribution +and using appropriate Makefiles/project files from it. + +Changes in 1.2.1 (17 November 2003) +- Remove a tab in contrib/gzappend/gzappend.c +- Update some interfaces in contrib for new zlib functions +- Update zlib version number in some contrib entries +- Add Windows CE definition for ptrdiff_t in zutil.h [Mai, Truta] +- Support shared libraries on Hurd and KFreeBSD [Brown] +- Fix error in NO_DIVIDE option of adler32.c + +Changes in 1.2.0.8 (4 November 2003) +- Update version in contrib/delphi/ZLib.pas and contrib/pascal/zlibpas.pas +- Add experimental NO_DIVIDE #define in adler32.c + - Possibly faster on some processors (let me know if it is) +- Correct Z_BLOCK to not return on first inflate call if no wrap +- Fix strm->data_type on inflate() return to correctly indicate EOB +- Add deflatePrime() function for appending in the middle of a byte +- Add contrib/gzappend for an example of appending to a stream +- Update win32/DLL_FAQ.txt [Truta] +- Delete Turbo C comment in README [Truta] +- Improve some indentation in zconf.h [Truta] +- Fix infinite loop on bad input in configure script [Church] +- Fix gzeof() for concatenated gzip files [Johnson] +- Add example to contrib/visual-basic.txt [Michael B.] +- Add -p to mkdir's in Makefile.in [vda] +- Fix configure to properly detect presence or lack of printf functions +- Add AS400 support [Monnerat] +- Add a little Cygwin support [Wilson] + +Changes in 1.2.0.7 (21 September 2003) +- Correct some debug formats in contrib/infback9 +- Cast a type in a debug statement in trees.c +- Change search and replace delimiter in configure from % to # [Beebe] +- Update contrib/untgz to 0.2 with various fixes [Truta] +- Add build support for Amiga [Nikl] +- Remove some directories in old that have been updated to 1.2 +- Add dylib building for Mac OS X in configure and Makefile.in +- Remove old distribution stuff from Makefile +- Update README to point to DLL_FAQ.txt, and add comment on Mac OS X +- Update links in README + +Changes in 1.2.0.6 (13 September 2003) +- Minor FAQ updates +- Update contrib/minizip to 1.00 [Vollant] +- Remove test of gz functions in example.c when GZ_COMPRESS defined [Truta] +- Update POSTINC comment for 68060 [Nikl] +- Add contrib/infback9 with deflate64 decoding (unsupported) +- For MVS define NO_vsnprintf and undefine FAR [van Burik] +- Add pragma for fdopen on MVS [van Burik] + +Changes in 1.2.0.5 (8 September 2003) +- Add OF to inflateBackEnd() declaration in zlib.h +- Remember start when using gzdopen in the middle of a file +- Use internal off_t counters in gz* functions to properly handle seeks +- Perform more rigorous check for distance-too-far in inffast.c +- Add Z_BLOCK flush option to return from inflate at block boundary +- Set strm->data_type on return from inflate + - Indicate bits unused, if at block boundary, and if in last block +- Replace size_t with ptrdiff_t in crc32.c, and check for correct size +- Add condition so old NO_DEFLATE define still works for compatibility +- FAQ update regarding the Windows DLL [Truta] +- INDEX update: add qnx entry, remove aix entry [Truta] +- Install zlib.3 into mandir [Wilson] +- Move contrib/zlib_dll_FAQ.txt to win32/DLL_FAQ.txt; update [Truta] +- Adapt the zlib interface to the new DLL convention guidelines [Truta] +- Introduce ZLIB_WINAPI macro to allow the export of functions using + the WINAPI calling convention, for Visual Basic [Vollant, Truta] +- Update msdos and win32 scripts and makefiles [Truta] +- Export symbols by name, not by ordinal, in win32/zlib.def [Truta] +- Add contrib/ada [Anisimkov] +- Move asm files from contrib/vstudio/vc70_32 to contrib/asm386 [Truta] +- Rename contrib/asm386 to contrib/masmx86 [Truta, Vollant] +- Add contrib/masm686 [Truta] +- Fix offsets in contrib/inflate86 and contrib/masmx86/inffas32.asm + [Truta, Vollant] +- Update contrib/delphi; rename to contrib/pascal; add example [Truta] +- Remove contrib/delphi2; add a new contrib/delphi [Truta] +- Avoid inclusion of the nonstandard <memory.h> in contrib/iostream, + and fix some method prototypes [Truta] +- Fix the ZCR_SEED2 constant to avoid warnings in contrib/minizip + [Truta] +- Avoid the use of backslash (\) in contrib/minizip [Vollant] +- Fix file time handling in contrib/untgz; update makefiles [Truta] +- Update contrib/vstudio/vc70_32 to comply with the new DLL guidelines + [Vollant] +- Remove contrib/vstudio/vc15_16 [Vollant] +- Rename contrib/vstudio/vc70_32 to contrib/vstudio/vc7 [Truta] +- Update README.contrib [Truta] +- Invert the assignment order of match_head and s->prev[...] in + INSERT_STRING [Truta] +- Compare TOO_FAR with 32767 instead of 32768, to avoid 16-bit warnings + [Truta] +- Compare function pointers with 0, not with NULL or Z_NULL [Truta] +- Fix prototype of syncsearch in inflate.c [Truta] +- Introduce ASMINF macro to be enabled when using an ASM implementation + of inflate_fast [Truta] +- Change NO_DEFLATE to NO_GZCOMPRESS [Truta] +- Modify test_gzio in example.c to take a single file name as a + parameter [Truta] +- Exit the example.c program if gzopen fails [Truta] +- Add type casts around strlen in example.c [Truta] +- Remove casting to sizeof in minigzip.c; give a proper type + to the variable compared with SUFFIX_LEN [Truta] +- Update definitions of STDC and STDC99 in zconf.h [Truta] +- Synchronize zconf.h with the new Windows DLL interface [Truta] +- Use SYS16BIT instead of __32BIT__ to distinguish between + 16- and 32-bit platforms [Truta] +- Use far memory allocators in small 16-bit memory models for + Turbo C [Truta] +- Add info about the use of ASMV, ASMINF and ZLIB_WINAPI in + zlibCompileFlags [Truta] +- Cygwin has vsnprintf [Wilson] +- In Windows16, OS_CODE is 0, as in MSDOS [Truta] +- In Cygwin, OS_CODE is 3 (Unix), not 11 (Windows32) [Wilson] + +Changes in 1.2.0.4 (10 August 2003) +- Minor FAQ updates +- Be more strict when checking inflateInit2's windowBits parameter +- Change NO_GUNZIP compile option to NO_GZIP to cover deflate as well +- Add gzip wrapper option to deflateInit2 using windowBits +- Add updated QNX rule in configure and qnx directory [Bonnefoy] +- Make inflate distance-too-far checks more rigorous +- Clean up FAR usage in inflate +- Add casting to sizeof() in gzio.c and minigzip.c + +Changes in 1.2.0.3 (19 July 2003) +- Fix silly error in gzungetc() implementation [Vollant] +- Update contrib/minizip and contrib/vstudio [Vollant] +- Fix printf format in example.c +- Correct cdecl support in zconf.in.h [Anisimkov] +- Minor FAQ updates + +Changes in 1.2.0.2 (13 July 2003) +- Add ZLIB_VERNUM in zlib.h for numerical preprocessor comparisons +- Attempt to avoid warnings in crc32.c for pointer-int conversion +- Add AIX to configure, remove aix directory [Bakker] +- Add some casts to minigzip.c +- Improve checking after insecure sprintf() or vsprintf() calls +- Remove #elif's from crc32.c +- Change leave label to inf_leave in inflate.c and infback.c to avoid + library conflicts +- Remove inflate gzip decoding by default--only enable gzip decoding by + special request for stricter backward compatibility +- Add zlibCompileFlags() function to return compilation information +- More typecasting in deflate.c to avoid warnings +- Remove leading underscore from _Capital #defines [Truta] +- Fix configure to link shared library when testing +- Add some Windows CE target adjustments [Mai] +- Remove #define ZLIB_DLL in zconf.h [Vollant] +- Add zlib.3 [Rodgers] +- Update RFC URL in deflate.c and algorithm.txt [Mai] +- Add zlib_dll_FAQ.txt to contrib [Truta] +- Add UL to some constants [Truta] +- Update minizip and vstudio [Vollant] +- Remove vestigial NEED_DUMMY_RETURN from zconf.in.h +- Expand use of NO_DUMMY_DECL to avoid all dummy structures +- Added iostream3 to contrib [Schwardt] +- Replace rewind() with fseek() for WinCE [Truta] +- Improve setting of zlib format compression level flags + - Report 0 for huffman and rle strategies and for level == 0 or 1 + - Report 2 only for level == 6 +- Only deal with 64K limit when necessary at compile time [Truta] +- Allow TOO_FAR check to be turned off at compile time [Truta] +- Add gzclearerr() function [Souza] +- Add gzungetc() function + +Changes in 1.2.0.1 (17 March 2003) +- Add Z_RLE strategy for run-length encoding [Truta] + - When Z_RLE requested, restrict matches to distance one + - Update zlib.h, minigzip.c, gzopen(), gzdopen() for Z_RLE +- Correct FASTEST compilation to allow level == 0 +- Clean up what gets compiled for FASTEST +- Incorporate changes to zconf.in.h [Vollant] + - Refine detection of Turbo C need for dummy returns + - Refine ZLIB_DLL compilation + - Include additional header file on VMS for off_t typedef +- Try to use _vsnprintf where it supplants vsprintf [Vollant] +- Add some casts in inffast.c +- Enchance comments in zlib.h on what happens if gzprintf() tries to + write more than 4095 bytes before compression +- Remove unused state from inflateBackEnd() +- Remove exit(0) from minigzip.c, example.c +- Get rid of all those darn tabs +- Add "check" target to Makefile.in that does the same thing as "test" +- Add "mostlyclean" and "maintainer-clean" targets to Makefile.in +- Update contrib/inflate86 [Anderson] +- Update contrib/testzlib, contrib/vstudio, contrib/minizip [Vollant] +- Add msdos and win32 directories with makefiles [Truta] +- More additions and improvements to the FAQ + +Changes in 1.2.0 (9 March 2003) +- New and improved inflate code + - About 20% faster + - Does not allocate 32K window unless and until needed + - Automatically detects and decompresses gzip streams + - Raw inflate no longer needs an extra dummy byte at end + - Added inflateBack functions using a callback interface--even faster + than inflate, useful for file utilities (gzip, zip) + - Added inflateCopy() function to record state for random access on + externally generated deflate streams (e.g. in gzip files) + - More readable code (I hope) +- New and improved crc32() + - About 50% faster, thanks to suggestions from Rodney Brown +- Add deflateBound() and compressBound() functions +- Fix memory leak in deflateInit2() +- Permit setting dictionary for raw deflate (for parallel deflate) +- Fix const declaration for gzwrite() +- Check for some malloc() failures in gzio.c +- Fix bug in gzopen() on single-byte file 0x1f +- Fix bug in gzread() on concatenated file with 0x1f at end of buffer + and next buffer doesn't start with 0x8b +- Fix uncompress() to return Z_DATA_ERROR on truncated input +- Free memory at end of example.c +- Remove MAX #define in trees.c (conflicted with some libraries) +- Fix static const's in deflate.c, gzio.c, and zutil.[ch] +- Declare malloc() and free() in gzio.c if STDC not defined +- Use malloc() instead of calloc() in zutil.c if int big enough +- Define STDC for AIX +- Add aix/ with approach for compiling shared library on AIX +- Add HP-UX support for shared libraries in configure +- Add OpenUNIX support for shared libraries in configure +- Use $cc instead of gcc to build shared library +- Make prefix directory if needed when installing +- Correct Macintosh avoidance of typedef Byte in zconf.h +- Correct Turbo C memory allocation when under Linux +- Use libz.a instead of -lz in Makefile (assure use of compiled library) +- Update configure to check for snprintf or vsnprintf functions and their + return value, warn during make if using an insecure function +- Fix configure problem with compile-time knowledge of HAVE_UNISTD_H that + is lost when library is used--resolution is to build new zconf.h +- Documentation improvements (in zlib.h): + - Document raw deflate and inflate + - Update RFCs URL + - Point out that zlib and gzip formats are different + - Note that Z_BUF_ERROR is not fatal + - Document string limit for gzprintf() and possible buffer overflow + - Note requirement on avail_out when flushing + - Note permitted values of flush parameter of inflate() +- Add some FAQs (and even answers) to the FAQ +- Add contrib/inflate86/ for x86 faster inflate +- Add contrib/blast/ for PKWare Data Compression Library decompression +- Add contrib/puff/ simple inflate for deflate format description Changes in 1.1.4 (11 March 2002) - ZFREE was repeated on same allocation on some error conditions. @@ -10,7 +256,7 @@ Changes in 1.1.4 (11 March 2002) less than 32K. - force windowBits > 8 to avoid a bug in the encoder for a window size of 256 bytes. (A complete fix will be available in 1.1.5). - + Changes in 1.1.3 (9 July 1998) - fix "an inflate input buffer bug that shows up on rare but persistent occasions" (Mark) @@ -184,13 +430,13 @@ Changes in 1.0.6 (19 Jan 1998) - added Makefile.nt (thanks to Stephen Williams) - added the unsupported "contrib" directory: contrib/asm386/ by Gilles Vollant <info@winimage.com> - 386 asm code replacing longest_match(). + 386 asm code replacing longest_match(). contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> A C++ I/O streams interface to the zlib gz* functions contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> - Another C++ I/O streams interface + Another C++ I/O streams interface contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> - A very simple tar.gz file extractor using zlib + A very simple tar.gz file extractor using zlib contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> How to use compress(), uncompress() and the gz* functions from VB. - pass params -f (filtered data), -h (huffman only), -1 to -9 (compression @@ -217,7 +463,7 @@ Changes in 1.0.6 (19 Jan 1998) - add NEED_DUMMY_RETURN for Borland - use variable z_verbose for tracing in debug mode (L. Peter Deutsch). - allow compilation with CC -- defined STDC for OS/2 (David Charlap) +- defined STDC for OS/2 (David Charlap) - limit external names to 8 chars for MVS (Thomas Lund) - in minigzip.c, use static buffers only for 16-bit systems - fix suffix check for "minigzip -d foo.gz" @@ -242,7 +488,7 @@ Changes in 1.0.5 (3 Jan 98) - Eliminate memory leaks on error conditions in inflate - Removed some vestigial code in inflate - Update web address in README - + Changes in 1.0.4 (24 Jul 96) - In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF bit, so the decompressor could decompress all the correct data but went diff --git a/zlib/FAQ b/zlib/FAQ new file mode 100644 index 00000000000..7115ec38d60 --- /dev/null +++ b/zlib/FAQ @@ -0,0 +1,315 @@ + + Frequently Asked Questions about zlib + + +If your question is not there, please check the zlib home page +http://www.zlib.org which may have more recent information. +The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html + + + 1. Is zlib Y2K-compliant? + + Yes. zlib doesn't handle dates. + + 2. Where can I get a Windows DLL version? + + The zlib sources can be compiled without change to produce a DLL. + See the file win32/DLL_FAQ.txt in the zlib distribution. + Pointers to the precompiled DLL are found in the zlib web site at + http://www.zlib.org. + + 3. Where can I get a Visual Basic interface to zlib? + + See + * http://www.winimage.com/zLibDll/ + * http://www.dogma.net/markn/articles/zlibtool/zlibtool.htm + * contrib/visual-basic.txt in the zlib distribution + + 4. compress() returns Z_BUF_ERROR + + Make sure that before the call of compress, the length of the compressed + buffer is equal to the total size of the compressed buffer and not + zero. For Visual Basic, check that this parameter is passed by reference + ("as any"), not by value ("as long"). + + 5. deflate() or inflate() returns Z_BUF_ERROR + + Before making the call, make sure that avail_in and avail_out are not + zero. When setting the parameter flush equal to Z_FINISH, also make sure + that avail_out is big enough to allow processing all pending input. + Note that a Z_BUF_ERROR is not fatal--another call to deflate() or + inflate() can be made with more input or output space. A Z_BUF_ERROR + may in fact be unavoidable depending on how the functions are used, since + it is not possible to tell whether or not there is more output pending + when strm.avail_out returns with zero. + + 6. Where's the zlib documentation (man pages, etc.)? + + It's in zlib.h for the moment, and Francis S. Lin has converted it to a + web page zlib.html. Volunteers to transform this to Unix-style man pages, + please contact Jean-loup Gailly (jloup@gzip.org). Examples of zlib usage + are in the files example.c and minigzip.c. + + 7. Why don't you use GNU autoconf or libtool or ...? + + Because we would like to keep zlib as a very small and simple + package. zlib is rather portable and doesn't need much configuration. + + 8. I found a bug in zlib. + + Most of the time, such problems are due to an incorrect usage of + zlib. Please try to reproduce the problem with a small program and send + the corresponding source to us at zlib@gzip.org . Do not send + multi-megabyte data files without prior agreement. + + 9. Why do I get "undefined reference to gzputc"? + + If "make test" produces something like + + example.o(.text+0x154): undefined reference to `gzputc' + + check that you don't have old files libz.* in /usr/lib, /usr/local/lib or + /usr/X11R6/lib. Remove any old versions, then do "make install". + +10. I need a Delphi interface to zlib. + + See the contrib/delphi directory in the zlib distribution. + +11. Can zlib handle .zip archives? + + See the directory contrib/minizip in the zlib distribution. + +12. Can zlib handle .Z files? + + No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt + the code of uncompress on your own. + +13. How can I make a Unix shared library? + + make clean + ./configure -s + make + +14. How do I install a shared zlib library on Unix? + + make install + + However, many flavors of Unix come with a shared zlib already installed. + Before going to the trouble of compiling a shared version of zlib and + trying to install it, you may want to check if it's already there! If you + can #include <zlib.h>, it's there. The -lz option will probably link to it. + +15. I have a question about OttoPDF + + We are not the authors of OttoPDF. The real author is on the OttoPDF web + site Joel Hainley jhainley@myndkryme.com. + +16. Why does gzip give an error on a file I make with compress/deflate? + + The compress and deflate functions produce data in the zlib format, which + is different and incompatible with the gzip format. The gz* functions in + zlib on the other hand use the gzip format. Both the zlib and gzip + formats use the same compressed data format internally, but have different + headers and trailers around the compressed data. + +17. Ok, so why are there two different formats? + + The gzip format was designed to retain the directory information about + a single file, such as the name and last modification date. The zlib + format on the other hand was designed for in-memory and communication + channel applications, and has a much more compact header and trailer and + uses a faster integrity check than gzip. + +18. Well that's nice, but how do I make a gzip file in memory? + + You can request that deflate write the gzip format instead of the zlib + format using deflateInit2(). You can also request that inflate decode + the gzip format using inflateInit2(). Read zlib.h for more details. + + Note that you cannot specify special gzip header contents (e.g. a file + name or modification date), nor will inflate tell you what was in the + gzip header. If you need to customize the header or see what's in it, + you can use the raw deflate and inflate operations and the crc32() + function and roll your own gzip encoding and decoding. Read the gzip + RFC 1952 for details of the header and trailer format. + +19. Is zlib thread-safe? + + Yes. However any library routines that zlib uses and any application- + provided memory allocation routines must also be thread-safe. zlib's gz* + functions use stdio library routines, and most of zlib's functions use the + library memory allocation routines by default. zlib's Init functions allow + for the application to provide custom memory allocation routines. + + Of course, you should only operate on any given zlib or gzip stream from a + single thread at a time. + +20. Can I use zlib in my commercial application? + + Yes. Please read the license in zlib.h. + +21. Is zlib under the GNU license? + + No. Please read the license in zlib.h. + +22. The license says that altered source versions must be "plainly marked". So + what exactly do I need to do to meet that requirement? + + You need to change the ZLIB_VERSION and ZLIB_VERNUM #defines in zlib.h. In + particular, the final version number needs to be changed to "f", and an + identification string should be appended to ZLIB_VERSION. Version numbers + x.x.x.f are reserved for modifications to zlib by others than the zlib + maintainers. For example, if the version of the base zlib you are altering + is "1.2.3.4", then in zlib.h you should change ZLIB_VERNUM to 0x123f, and + ZLIB_VERSION to something like "1.2.3.f-zachary-mods-v3". You can also + update the version strings in deflate.c and inftrees.c. + + For altered source distributions, you should also note the origin and + nature of the changes in zlib.h, as well as in ChangeLog and README, along + with the dates of the alterations. The origin should include at least your + name (or your company's name), and an email address to contact for help or + issues with the library. + + Note that distributing a compiled zlib library along with zlib.h and + zconf.h is also a source distribution, and so you should change + ZLIB_VERSION and ZLIB_VERNUM and note the origin and nature of the changes + in zlib.h as you would for a full source distribution. + +23. Will zlib work on a big-endian or little-endian architecture, and can I + exchange compressed data between them? + + Yes and yes. + +24. Will zlib work on a 64-bit machine? + + It should. It has been tested on 64-bit machines, and has no dependence + on any data types being limited to 32-bits in length. If you have any + difficulties, please provide a complete problem report to zlib@gzip.org + +25. Will zlib decompress data from the PKWare Data Compression Library? + + No. The PKWare DCL uses a completely different compressed data format + than does PKZIP and zlib. However, you can look in zlib's contrib/blast + directory for a possible solution to your problem. + +26. Can I access data randomly in a compressed stream? + + No, not without some preparation. If when compressing you periodically + use Z_FULL_FLUSH, carefully write all the pending data at those points, + and keep an index of those locations, then you can start decompression + at those points. You have to be careful to not use Z_FULL_FLUSH too + often, since it can significantly degrade compression. + +27. Does zlib work on MVS, OS/390, CICS, etc.? + + We don't know for sure. We have heard occasional reports of success on + these systems. If you do use it on one of these, please provide us with + a report, instructions, and patches that we can reference when we get + these questions. Thanks. + +28. Is there some simpler, easier to read version of inflate I can look at + to understand the deflate format? + + First off, you should read RFC 1951. Second, yes. Look in zlib's + contrib/puff directory. + +29. Does zlib infringe on any patents? + + As far as we know, no. In fact, that was originally the whole point behind + zlib. Look here for some more information: + + http://www.gzip.org/#faq11 + +30. Can zlib work with greater than 4 GB of data? + + Yes. inflate() and deflate() will process any amount of data correctly. + Each call of inflate() or deflate() is limited to input and output chunks + of the maximum value that can be stored in the compiler's "unsigned int" + type, but there is no limit to the number of chunks. Note however that the + strm.total_in and strm_total_out counters may be limited to 4 GB. These + counters are provided as a convenience and are not used internally by + inflate() or deflate(). The application can easily set up its own counters + updated after each call of inflate() or deflate() to count beyond 4 GB. + compress() and uncompress() may be limited to 4 GB, since they operate in a + single call. gzseek() and gztell() may be limited to 4 GB depending on how + zlib is compiled. See the zlibCompileFlags() function in zlib.h. + + The word "may" appears several times above since there is a 4 GB limit + only if the compiler's "long" type is 32 bits. If the compiler's "long" + type is 64 bits, then the limit is 16 exabytes. + +31. Does zlib have any security vulnerabilities? + + The only one that we are aware of is potentially in gzprintf(). If zlib + is compiled to use sprintf() or vsprintf(), then there is no protection + against a buffer overflow of a 4K string space, other than the caller of + gzprintf() assuring that the output will not exceed 4K. On the other + hand, if zlib is compiled to use snprintf() or vsnprintf(), which should + normally be the case, then there is no vulnerability. The ./configure + script will display warnings if an insecure variation of sprintf() will + be used by gzprintf(). Also the zlibCompileFlags() function will return + information on what variant of sprintf() is used by gzprintf(). + + If you don't have snprintf() or vsnprintf() and would like one, you can + find a portable implementation here: + + http://www.ijs.si/software/snprintf/ + + Note that you should be using the most recent version of zlib. Versions + 1.1.3 and before were subject to a double-free vulnerability. + +32. Is there a Java version of zlib? + + Probably what you want is to use zlib in Java. zlib is already included + as part of the Java SDK in the java.util.zip package. If you really want + a version of zlib written in the Java language, look on the zlib home + page for links: http://www.zlib.org/ + +33. I get this or that compiler or source-code scanner warning when I crank it + up to maximally-pendantic. Can't you guys write proper code? + + Many years ago, we gave up attempting to avoid warnings on every compiler + in the universe. It just got to be a waste of time, and some compilers + were downright silly. So now, we simply make sure that the code always + works. + +34. Will zlib read the (insert any ancient or arcane format here) compressed + data format? + + Probably not. Look in the comp.compression FAQ for pointers to various + formats and associated software. + +35. How can I encrypt/decrypt zip files with zlib? + + zlib doesn't support encryption. The original PKZIP encryption is very weak + and can be broken with freely available programs. To get strong encryption, + use gpg ( http://www.gnupg.org/ ) which already includes zlib compression. + For PKZIP compatible "encryption", look at http://www.info-zip.org/ + +36. What's the difference between the "gzip" and "deflate" HTTP 1.1 encodings? + + "gzip" is the gzip format, and "deflate" is the zlib format. They should + probably have called the second one "zlib" instead to avoid confusion + with the raw deflate compressed data format. While the HTTP 1.1 RFC 2616 + correctly points to the zlib specification in RFC 1950 for the "deflate" + transfer encoding, there have been reports of servers and browsers that + incorrectly produce or expect raw deflate data per the deflate + specficiation in RFC 1951, most notably Microsoft. So even though the + "deflate" transfer encoding using the zlib format would be the more + efficient approach (and in fact exactly what the zlib format was designed + for), using the "gzip" transfer encoding is probably more reliable due to + an unfortunate choice of name on the part of the HTTP 1.1 authors. + + Bottom line: use the gzip format for HTTP 1.1 encoding. + +37. Does zlib support the new "Deflate64" format introduced by PKWare? + + No. PKWare has apparently decided to keep that format proprietary, since + they have not documented it as they have previous compression formats. + In any case, the compression improvements are so modest compared to other + more modern approaches, that it's not worth the effort to implement. + +38. Can you please sign these lengthy legal documents and fax them back to us + so that we can use your software in our product? + + No. Go away. Shoo. diff --git a/zlib/INDEX b/zlib/INDEX new file mode 100644 index 00000000000..a9de7844d16 --- /dev/null +++ b/zlib/INDEX @@ -0,0 +1,48 @@ +ChangeLog history of changes +FAQ Frequently Asked Questions about zlib +INDEX this file +Makefile makefile for Unix (generated by configure) +Makefile.in makefile for Unix (template for configure) +README guess what +algorithm.txt description of the (de)compression algorithm +configure configure script for Unix +zconf.in.h template for zconf.h (used by configure) + +msdos/ makefiles for MSDOS +old/ makefiles for various architectures and zlib documentation + files that have not yet been updated for zlib 1.2.x +qnx/ makefiles for QNX +win32/ makefiles for Windows + + zlib public header files (must be kept): +zconf.h +zlib.h + + private source files used to build the zlib library: +adler32.c +compress.c +crc32.c +crc32.h +deflate.c +deflate.h +gzio.c +infback.c +inffast.c +inffast.h +inffixed.h +inflate.c +inflate.h +inftrees.c +inftrees.h +trees.c +trees.h +uncompr.c +zutil.c +zutil.h + + source files for sample programs: +example.c +minigzip.c + + unsupported contribution by third parties +See contrib/README.contrib diff --git a/zlib/Make_vms.com b/zlib/Make_vms.com deleted file mode 100644 index 1c57e8f0e02..00000000000 --- a/zlib/Make_vms.com +++ /dev/null @@ -1,115 +0,0 @@ -$! make libz under VMS -$! written by Martin P.J. Zinser <m.zinser@gsi.de> -$! -$! Look for the compiler used -$! -$ ccopt = "" -$ if f$getsyi("HW_MODEL").ge.1024 -$ then -$ ccopt = "/prefix=all"+ccopt -$ comp = "__decc__=1" -$ if f$trnlnm("SYS").eqs."" then define sys sys$library: -$ else -$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs."" -$ then -$ comp = "__vaxc__=1" -$ if f$trnlnm("SYS").eqs."" then define sys sys$library: -$ else -$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include: -$ ccopt = "/decc/prefix=all"+ccopt -$ comp = "__decc__=1" -$ endif -$ endif -$! -$! Build the thing plain or with mms -$! -$ write sys$output "Compiling Zlib sources ..." -$ if f$search("SYS$SYSTEM:MMS.EXE").eqs."" -$ then -$ dele example.obj;*,minigzip.obj;* -$ CALL MAKE adler32.OBJ "CC ''CCOPT' adler32" - - adler32.c zlib.h zconf.h -$ CALL MAKE compress.OBJ "CC ''CCOPT' compress" - - compress.c zlib.h zconf.h -$ CALL MAKE crc32.OBJ "CC ''CCOPT' crc32" - - crc32.c zlib.h zconf.h -$ CALL MAKE deflate.OBJ "CC ''CCOPT' deflate" - - deflate.c deflate.h zutil.h zlib.h zconf.h -$ CALL MAKE gzio.OBJ "CC ''CCOPT' gzio" - - gzio.c zutil.h zlib.h zconf.h -$ CALL MAKE infblock.OBJ "CC ''CCOPT' infblock" - - infblock.c zutil.h zlib.h zconf.h infblock.h -$ CALL MAKE infcodes.OBJ "CC ''CCOPT' infcodes" - - infcodes.c zutil.h zlib.h zconf.h inftrees.h -$ CALL MAKE inffast.OBJ "CC ''CCOPT' inffast" - - inffast.c zutil.h zlib.h zconf.h inffast.h -$ CALL MAKE inflate.OBJ "CC ''CCOPT' inflate" - - inflate.c zutil.h zlib.h zconf.h infblock.h -$ CALL MAKE inftrees.OBJ "CC ''CCOPT' inftrees" - - inftrees.c zutil.h zlib.h zconf.h inftrees.h -$ CALL MAKE infutil.OBJ "CC ''CCOPT' infutil" - - infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h -$ CALL MAKE trees.OBJ "CC ''CCOPT' trees" - - trees.c deflate.h zutil.h zlib.h zconf.h -$ CALL MAKE uncompr.OBJ "CC ''CCOPT' uncompr" - - uncompr.c zlib.h zconf.h -$ CALL MAKE zutil.OBJ "CC ''CCOPT' zutil" - - zutil.c zutil.h zlib.h zconf.h -$ write sys$output "Building Zlib ..." -$ CALL MAKE libz.OLB "lib/crea libz.olb *.obj" *.OBJ -$ write sys$output "Building example..." -$ CALL MAKE example.OBJ "CC ''CCOPT' example" - - example.c zlib.h zconf.h -$ call make example.exe "LINK example,libz.olb/lib" example.obj libz.olb -$ write sys$output "Building minigzip..." -$ CALL MAKE minigzip.OBJ "CC ''CCOPT' minigzip" - - minigzip.c zlib.h zconf.h -$ call make minigzip.exe - - "LINK minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib" - - minigzip.obj libz.olb -$ else -$ mms/macro=('comp') -$ endif -$ write sys$output "Zlib build completed" -$ exit -$! -$! -$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES -$ V = 'F$Verify(0) -$! P1 = What we are trying to make -$! P2 = Command to make it -$! P3 - P8 What it depends on -$ -$ If F$Search(P1) .Eqs. "" Then Goto Makeit -$ Time = F$CvTime(F$File(P1,"RDT")) -$arg=3 -$Loop: -$ Argument = P'arg -$ If Argument .Eqs. "" Then Goto Exit -$ El=0 -$Loop2: -$ File = F$Element(El," ",Argument) -$ If File .Eqs. " " Then Goto Endl -$ AFile = "" -$Loop3: -$ OFile = AFile -$ AFile = F$Search(File) -$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl -$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit -$ Goto Loop3 -$NextEL: -$ El = El + 1 -$ Goto Loop2 -$EndL: -$ arg=arg+1 -$ If arg .Le. 8 Then Goto Loop -$ Goto Exit -$ -$Makeit: -$ VV=F$VERIFY(0) -$ write sys$output P2 -$ 'P2 -$ VV='F$Verify(VV) -$Exit: -$ If V Then Set Verify -$ENDSUBROUTINE diff --git a/zlib/Makefile.riscos b/zlib/Makefile.riscos deleted file mode 100644 index d97f4492370..00000000000 --- a/zlib/Makefile.riscos +++ /dev/null @@ -1,151 +0,0 @@ -# Project: zlib_1_03 -# Patched for zlib 1.1.2 rw@shadow.org.uk 19980430 -# test works out-of-the-box, installs `somewhere' on demand - -# Toolflags: -CCflags = -c -depend !Depend -IC: -g -throwback -DRISCOS -fah -C++flags = -c -depend !Depend -IC: -throwback -Linkflags = -aif -c++ -o $@ -ObjAsmflags = -throwback -NoCache -depend !Depend -CMHGflags = -LibFileflags = -c -l -o $@ -Squeezeflags = -o $@ - -# change the line below to where _you_ want the library installed. -libdest = lib:zlib - -# Final targets: -@.lib: @.o.adler32 @.o.compress @.o.crc32 @.o.deflate @.o.gzio \ - @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil @.o.trees \ - @.o.uncompr @.o.zutil - LibFile $(LibFileflags) @.o.adler32 @.o.compress @.o.crc32 @.o.deflate \ - @.o.gzio @.o.infblock @.o.infcodes @.o.inffast @.o.inflate @.o.inftrees @.o.infutil \ - @.o.trees @.o.uncompr @.o.zutil -test: @.minigzip @.example @.lib - @copy @.lib @.libc A~C~DF~L~N~P~Q~RS~TV - @echo running tests: hang on. - @/@.minigzip -f -9 libc - @/@.minigzip -d libc-gz - @/@.minigzip -f -1 libc - @/@.minigzip -d libc-gz - @/@.minigzip -h -9 libc - @/@.minigzip -d libc-gz - @/@.minigzip -h -1 libc - @/@.minigzip -d libc-gz - @/@.minigzip -9 libc - @/@.minigzip -d libc-gz - @/@.minigzip -1 libc - @/@.minigzip -d libc-gz - @diff @.lib @.libc - @echo that should have reported '@.lib and @.libc identical' if you have diff. - @/@.example @.fred @.fred - @echo that will have given lots of hello!'s. - -@.minigzip: @.o.minigzip @.lib C:o.Stubs - Link $(Linkflags) @.o.minigzip @.lib C:o.Stubs -@.example: @.o.example @.lib C:o.Stubs - Link $(Linkflags) @.o.example @.lib C:o.Stubs - -install: @.lib - cdir $(libdest) - cdir $(libdest).h - @copy @.h.zlib $(libdest).h.zlib A~C~DF~L~N~P~Q~RS~TV - @copy @.h.zconf $(libdest).h.zconf A~C~DF~L~N~P~Q~RS~TV - @copy @.lib $(libdest).lib A~C~DF~L~N~P~Q~RS~TV - @echo okay, installed zlib in $(libdest) - -clean:; remove @.minigzip - remove @.example - remove @.libc - -wipe @.o.* F~r~cV - remove @.fred - -# User-editable dependencies: -.c.o: - cc $(ccflags) -o $@ $< - -# Static dependencies: - -# Dynamic dependencies: -o.example: c.example -o.example: h.zlib -o.example: h.zconf -o.minigzip: c.minigzip -o.minigzip: h.zlib -o.minigzip: h.zconf -o.adler32: c.adler32 -o.adler32: h.zlib -o.adler32: h.zconf -o.compress: c.compress -o.compress: h.zlib -o.compress: h.zconf -o.crc32: c.crc32 -o.crc32: h.zlib -o.crc32: h.zconf -o.deflate: c.deflate -o.deflate: h.deflate -o.deflate: h.zutil -o.deflate: h.zlib -o.deflate: h.zconf -o.gzio: c.gzio -o.gzio: h.zutil -o.gzio: h.zlib -o.gzio: h.zconf -o.infblock: c.infblock -o.infblock: h.zutil -o.infblock: h.zlib -o.infblock: h.zconf -o.infblock: h.infblock -o.infblock: h.inftrees -o.infblock: h.infcodes -o.infblock: h.infutil -o.infcodes: c.infcodes -o.infcodes: h.zutil -o.infcodes: h.zlib -o.infcodes: h.zconf -o.infcodes: h.inftrees -o.infcodes: h.infblock -o.infcodes: h.infcodes -o.infcodes: h.infutil -o.infcodes: h.inffast -o.inffast: c.inffast -o.inffast: h.zutil -o.inffast: h.zlib -o.inffast: h.zconf -o.inffast: h.inftrees -o.inffast: h.infblock -o.inffast: h.infcodes -o.inffast: h.infutil -o.inffast: h.inffast -o.inflate: c.inflate -o.inflate: h.zutil -o.inflate: h.zlib -o.inflate: h.zconf -o.inflate: h.infblock -o.inftrees: c.inftrees -o.inftrees: h.zutil -o.inftrees: h.zlib -o.inftrees: h.zconf -o.inftrees: h.inftrees -o.inftrees: h.inffixed -o.infutil: c.infutil -o.infutil: h.zutil -o.infutil: h.zlib -o.infutil: h.zconf -o.infutil: h.infblock -o.infutil: h.inftrees -o.infutil: h.infcodes -o.infutil: h.infutil -o.trees: c.trees -o.trees: h.deflate -o.trees: h.zutil -o.trees: h.zlib -o.trees: h.zconf -o.trees: h.trees -o.uncompr: c.uncompr -o.uncompr: h.zlib -o.uncompr: h.zconf -o.zutil: c.zutil -o.zutil: h.zutil -o.zutil: h.zlib -o.zutil: h.zconf diff --git a/zlib/README b/zlib/README new file mode 100644 index 00000000000..0f1205481c1 --- /dev/null +++ b/zlib/README @@ -0,0 +1,126 @@ +ZLIB DATA COMPRESSION LIBRARY + +zlib 1.2.1 is a general purpose data compression library. All the code is +thread safe. The data format used by the zlib library is described by RFCs +(Request for Comments) 1950 to 1952 in the files +http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) +and rfc1952.txt (gzip format). These documents are also available in other +formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html + +All functions of the compression library are documented in the file zlib.h +(volunteer to write man pages welcome, contact zlib@gzip.org). A usage example +of the library is given in the file example.c which also tests that the library +is working correctly. Another example is given in the file minigzip.c. The +compression library itself is composed of all source files except example.c and +minigzip.c. + +To compile all files and run the test program, follow the instructions given at +the top of Makefile. In short "make test; make install" should work for most +machines. For Unix: "./configure; make test; make install" For MSDOS, use one +of the special makefiles such as Makefile.msc. For VMS, use Make_vms.com or +descrip.mms. + +Questions about zlib should be sent to <zlib@gzip.org>, or to Gilles Vollant +<info@winimage.com> for the Windows DLL version. The zlib home page is +http://www.zlib.org or http://www.gzip.org/zlib/ Before reporting a problem, +please check this site to verify that you have the latest version of zlib; +otherwise get the latest version and check whether the problem still exists or +not. + +PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html before asking +for help. + +Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997 +issue of Dr. Dobb's Journal; a copy of the article is available in +http://dogma.net/markn/articles/zlibtool/zlibtool.htm + +The changes made in version 1.2.1 are documented in the file ChangeLog. + +Unsupported third party contributions are provided in directory "contrib". + +A Java implementation of zlib is available in the Java Development Kit +http://java.sun.com/j2se/1.4.2/docs/api/java/util/zip/package-summary.html +See the zlib home page http://www.zlib.org for details. + +A Perl interface to zlib written by Paul Marquess <pmqs@cpan.org> is in the +CPAN (Comprehensive Perl Archive Network) sites +http://www.cpan.org/modules/by-module/Compress/ + +A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> is +available in Python 1.5 and later versions, see +http://www.python.org/doc/lib/module-zlib.html + +A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com> is +availlable at http://www.oche.de/~akupries/soft/trf/trf_zip.html + +An experimental package to read and write files in .zip format, written on top +of zlib by Gilles Vollant <info@winimage.com>, is available in the +contrib/minizip directory of zlib. + + +Notes for some targets: + +- For Windows DLL versions, please see win32/DLL_FAQ.txt + +- For 64-bit Irix, deflate.c must be compiled without any optimization. With + -O, one libpng test fails. The test works in 32 bit mode (with the -n32 + compiler flag). The compiler bug has been reported to SGI. + +- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 it works + when compiled with cc. + +- On Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 is + necessary to get gzprintf working correctly. This is done by configure. + +- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works with + other compilers. Use "make test" to check your compiler. + +- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers. + +- For PalmOs, see http://palmzlib.sourceforge.net/ + +- When building a shared, i.e. dynamic library on Mac OS X, the library must be + installed before testing (do "make install" before "make test"), since the + library location is specified in the library. + + +Acknowledgments: + + The deflate format used by zlib was defined by Phil Katz. The deflate + and zlib specifications were written by L. Peter Deutsch. Thanks to all the + people who reported problems and suggested various improvements in zlib; + they are too numerous to cite here. + +Copyright notice: + + (C) 1995-2003 Jean-loup Gailly and Mark Adler + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. + + Jean-loup Gailly Mark Adler + jloup@gzip.org madler@alumni.caltech.edu + +If you use the zlib library in a product, we would appreciate *not* +receiving lengthy legal documents to sign. The sources are provided +for free but without warranty of any kind. The library has been +entirely written by Jean-loup Gailly and Mark Adler; it does not +include third-party code. + +If you redistribute modified sources, we would appreciate that you include +in the file ChangeLog history information documenting your changes. Please +read the FAQ for more information on the distribution of modified source +versions. diff --git a/zlib/adler32.c b/zlib/adler32.c index fae88b65593..624a1696eb0 100644 --- a/zlib/adler32.c +++ b/zlib/adler32.c @@ -1,13 +1,14 @@ /* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ +#define ZLIB_INTERNAL #include "zlib.h" -#define BASE 65521L /* largest prime smaller than 65536 */ +#define BASE 65521UL /* largest prime smaller than 65536 */ #define NMAX 5552 /* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ @@ -17,6 +18,31 @@ #define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); #define DO16(buf) DO8(buf,0); DO8(buf,8); +#ifdef NO_DIVIDE +# define MOD(a) \ + do { \ + if (a >= (BASE << 16)) a -= (BASE << 16); \ + if (a >= (BASE << 15)) a -= (BASE << 15); \ + if (a >= (BASE << 14)) a -= (BASE << 14); \ + if (a >= (BASE << 13)) a -= (BASE << 13); \ + if (a >= (BASE << 12)) a -= (BASE << 12); \ + if (a >= (BASE << 11)) a -= (BASE << 11); \ + if (a >= (BASE << 10)) a -= (BASE << 10); \ + if (a >= (BASE << 9)) a -= (BASE << 9); \ + if (a >= (BASE << 8)) a -= (BASE << 8); \ + if (a >= (BASE << 7)) a -= (BASE << 7); \ + if (a >= (BASE << 6)) a -= (BASE << 6); \ + if (a >= (BASE << 5)) a -= (BASE << 5); \ + if (a >= (BASE << 4)) a -= (BASE << 4); \ + if (a >= (BASE << 3)) a -= (BASE << 3); \ + if (a >= (BASE << 2)) a -= (BASE << 2); \ + if (a >= (BASE << 1)) a -= (BASE << 1); \ + if (a >= BASE) a -= BASE; \ + } while (0) +#else +# define MOD(a) a %= BASE +#endif + /* ========================================================================= */ uLong ZEXPORT adler32(adler, buf, len) uLong adler; @@ -30,19 +56,19 @@ uLong ZEXPORT adler32(adler, buf, len) if (buf == Z_NULL) return 1L; while (len > 0) { - k = len < NMAX ? len : NMAX; + k = len < NMAX ? (int)len : NMAX; len -= k; while (k >= 16) { DO16(buf); - buf += 16; + buf += 16; k -= 16; } if (k != 0) do { s1 += *buf++; - s2 += s1; + s2 += s1; } while (--k); - s1 %= BASE; - s2 %= BASE; + MOD(s1); + MOD(s2); } return (s2 << 16) | s1; } diff --git a/zlib/algorithm.txt b/zlib/algorithm.txt index cdc830b5deb..b022dde312a 100644 --- a/zlib/algorithm.txt +++ b/zlib/algorithm.txt @@ -59,10 +59,10 @@ but saves time since there are both fewer insertions and fewer searches. 2.1 Introduction -The real question is, given a Huffman tree, how to decode fast. The most -important realization is that shorter codes are much more common than -longer codes, so pay attention to decoding the short codes fast, and let -the long codes take longer to decode. +The key question is how to represent a Huffman code (or any prefix code) so +that you can decode fast. The most important characteristic is that shorter +codes are much more common than longer codes, so pay attention to decoding the +short codes fast, and let the long codes take longer to decode. inflate() sets up a first level table that covers some number of bits of input less than the length of longest code. It gets that many bits from the @@ -77,58 +77,54 @@ table took no time (and if you had infinite memory), then there would only be a first level table to cover all the way to the longest code. However, building the table ends up taking a lot longer for more bits since short codes are replicated many times in such a table. What inflate() does is -simply to make the number of bits in the first table a variable, and set it -for the maximum speed. - -inflate() sends new trees relatively often, so it is possibly set for a -smaller first level table than an application that has only one tree for -all the data. For inflate, which has 286 possible codes for the -literal/length tree, the size of the first table is nine bits. Also the -distance trees have 30 possible values, and the size of the first table is -six bits. Note that for each of those cases, the table ended up one bit -longer than the ``average'' code length, i.e. the code length of an -approximately flat code which would be a little more than eight bits for -286 symbols and a little less than five bits for 30 symbols. It would be -interesting to see if optimizing the first level table for other -applications gave values within a bit or two of the flat code size. +simply to make the number of bits in the first table a variable, and then +to set that variable for the maximum speed. + +For inflate, which has 286 possible codes for the literal/length tree, the size +of the first table is nine bits. Also the distance trees have 30 possible +values, and the size of the first table is six bits. Note that for each of +those cases, the table ended up one bit longer than the ``average'' code +length, i.e. the code length of an approximately flat code which would be a +little more than eight bits for 286 symbols and a little less than five bits +for 30 symbols. 2.2 More details on the inflate table lookup -Ok, you want to know what this cleverly obfuscated inflate tree actually -looks like. You are correct that it's not a Huffman tree. It is simply a -lookup table for the first, let's say, nine bits of a Huffman symbol. The -symbol could be as short as one bit or as long as 15 bits. If a particular +Ok, you want to know what this cleverly obfuscated inflate tree actually +looks like. You are correct that it's not a Huffman tree. It is simply a +lookup table for the first, let's say, nine bits of a Huffman symbol. The +symbol could be as short as one bit or as long as 15 bits. If a particular symbol is shorter than nine bits, then that symbol's translation is duplicated -in all those entries that start with that symbol's bits. For example, if the -symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a +in all those entries that start with that symbol's bits. For example, if the +symbol is four bits, then it's duplicated 32 times in a nine-bit table. If a symbol is nine bits long, it appears in the table once. -If the symbol is longer than nine bits, then that entry in the table points -to another similar table for the remaining bits. Again, there are duplicated +If the symbol is longer than nine bits, then that entry in the table points +to another similar table for the remaining bits. Again, there are duplicated entries as needed. The idea is that most of the time the symbol will be short -and there will only be one table look up. (That's whole idea behind data -compression in the first place.) For the less frequent long symbols, there -will be two lookups. If you had a compression method with really long -symbols, you could have as many levels of lookups as is efficient. For +and there will only be one table look up. (That's whole idea behind data +compression in the first place.) For the less frequent long symbols, there +will be two lookups. If you had a compression method with really long +symbols, you could have as many levels of lookups as is efficient. For inflate, two is enough. -So a table entry either points to another table (in which case nine bits in -the above example are gobbled), or it contains the translation for the symbol -and the number of bits to gobble. Then you start again with the next +So a table entry either points to another table (in which case nine bits in +the above example are gobbled), or it contains the translation for the symbol +and the number of bits to gobble. Then you start again with the next ungobbled bit. -You may wonder: why not just have one lookup table for how ever many bits the -longest symbol is? The reason is that if you do that, you end up spending -more time filling in duplicate symbol entries than you do actually decoding. -At least for deflate's output that generates new trees every several 10's of -kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code -would take too long if you're only decoding several thousand symbols. At the +You may wonder: why not just have one lookup table for how ever many bits the +longest symbol is? The reason is that if you do that, you end up spending +more time filling in duplicate symbol entries than you do actually decoding. +At least for deflate's output that generates new trees every several 10's of +kbytes. You can imagine that filling in a 2^15 entry table for a 15-bit code +would take too long if you're only decoding several thousand symbols. At the other extreme, you could make a new table for every bit in the code. In fact, -that's essentially a Huffman tree. But then you spend two much time +that's essentially a Huffman tree. But then you spend two much time traversing the tree while decoding, even for short symbols. -So the number of bits for the first lookup table is a trade of the time to +So the number of bits for the first lookup table is a trade of the time to fill out the table vs. the time spent looking at the second level and above of the table. @@ -158,7 +154,7 @@ Let's make the first table three bits long (eight entries): 110: -> table X (gobble 3 bits) 111: -> table Y (gobble 3 bits) -Each entry is what the bits decode to and how many bits that is, i.e. how +Each entry is what the bits decode as and how many bits that is, i.e. how many bits to gobble. Or the entry points to another table, with the number of bits to gobble implicit in the size of the table. @@ -170,7 +166,7 @@ long: 10: D,2 11: E,2 -Table Y is three bits long since the longest code starting with 111 is six +Table Y is three bits long since the longest code starting with 111 is six bits long: 000: F,2 @@ -182,20 +178,20 @@ bits long: 110: I,3 111: J,3 -So what we have here are three tables with a total of 20 entries that had to -be constructed. That's compared to 64 entries for a single table. Or -compared to 16 entries for a Huffman tree (six two entry tables and one four -entry table). Assuming that the code ideally represents the probability of +So what we have here are three tables with a total of 20 entries that had to +be constructed. That's compared to 64 entries for a single table. Or +compared to 16 entries for a Huffman tree (six two entry tables and one four +entry table). Assuming that the code ideally represents the probability of the symbols, it takes on the average 1.25 lookups per symbol. That's compared -to one lookup for the single table, or 1.66 lookups per symbol for the +to one lookup for the single table, or 1.66 lookups per symbol for the Huffman tree. -There, I think that gives you a picture of what's going on. For inflate, the -meaning of a particular symbol is often more than just a letter. It can be a -byte (a "literal"), or it can be either a length or a distance which -indicates a base value and a number of bits to fetch after the code that is -added to the base value. Or it might be the special end-of-block code. The -data structures created in inftrees.c try to encode all that information +There, I think that gives you a picture of what's going on. For inflate, the +meaning of a particular symbol is often more than just a letter. It can be a +byte (a "literal"), or it can be either a length or a distance which +indicates a base value and a number of bits to fetch after the code that is +added to the base value. Or it might be the special end-of-block code. The +data structures created in inftrees.c try to encode all that information compactly in the tables. @@ -210,4 +206,4 @@ Compression,'' IEEE Transactions on Information Theory, Vol. 23, No. 3, pp. 337-343. ``DEFLATE Compressed Data Format Specification'' available in -ftp://ds.internic.net/rfc/rfc1951.txt +http://www.ietf.org/rfc/rfc1951.txt diff --git a/zlib/amiga/Makefile.pup b/zlib/amiga/Makefile.pup deleted file mode 100644 index 6cfad1dc04a..00000000000 --- a/zlib/amiga/Makefile.pup +++ /dev/null @@ -1,66 +0,0 @@ -# Amiga powerUP (TM) Makefile -# makefile for libpng and SAS C V6.58/7.00 PPC compiler -# Copyright (C) 1998 by Andreas R. Kleinert - -CC = scppc -CFLAGS = NOSTKCHK NOSINT OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL \ - OPTLOOP OPTRDEP=8 OPTDEP=8 OPTCOMP=8 -LIBNAME = libzip.a -AR = ppc-amigaos-ar -AR_FLAGS = cr -RANLIB = ppc-amigaos-ranlib -LDFLAGS = -r -o -LDLIBS = LIB:scppc.a -LN = ppc-amigaos-ld -RM = delete quiet - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example minigzip - -test: all - example - echo hello world | minigzip | minigzip -d - -$(LIBNAME): $(OBJS) - $(AR) $(AR_FLAGS) $@ $(OBJS) - $(RANLIB) $@ - -example: example.o $(LIBNAME) - $(LN) $(LDFLAGS) example LIB:c_ppc.o example.o $(LIBNAME) $(LDLIBS) LIB:end.o - -minigzip: minigzip.o $(LIBNAME) - $(LN) $(LDFLAGS) minigzip LIB:c_ppc.o minigzip.o $(LIBNAME) $(LDLIBS) LIB:end.o - -clean: - $(RM) *.o example minigzip $(LIBNAME) foo.gz - -zip: - zip -ul9 zlib README ChangeLog Makefile Make????.??? Makefile.?? \ - descrip.mms *.[ch] - -tgz: - cd ..; tar cfz zlib/zlib.tgz zlib/README zlib/ChangeLog zlib/Makefile \ - zlib/Make????.??? zlib/Makefile.?? zlib/descrip.mms zlib/*.[ch] - -# DO NOT DELETE THIS LINE -- make depend depends on it. - -adler32.o: zutil.h zlib.h zconf.h -compress.o: zlib.h zconf.h -crc32.o: zutil.h zlib.h zconf.h -deflate.o: deflate.h zutil.h zlib.h zconf.h -example.o: zlib.h zconf.h -gzio.o: zutil.h zlib.h zconf.h -infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h -infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h -inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h -inflate.o: zutil.h zlib.h zconf.h infblock.h -inftrees.o: zutil.h zlib.h zconf.h inftrees.h -infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h -minigzip.o: zlib.h zconf.h -trees.o: deflate.h zutil.h zlib.h zconf.h -uncompr.o: zlib.h zconf.h -zutil.o: zutil.h zlib.h zconf.h diff --git a/zlib/amiga/Makefile.sas b/zlib/amiga/Makefile.sas deleted file mode 100644 index 5323e821708..00000000000 --- a/zlib/amiga/Makefile.sas +++ /dev/null @@ -1,64 +0,0 @@ -# SMakefile for zlib -# Modified from the standard UNIX Makefile Copyright Jean-loup Gailly -# Osma Ahvenlampi <Osma.Ahvenlampi@hut.fi> -# Amiga, SAS/C 6.56 & Smake - -CC=sc -CFLAGS=OPT -#CFLAGS=OPT CPU=68030 -#CFLAGS=DEBUG=LINE -LDFLAGS=LIB z.lib - -SCOPTIONS=OPTSCHED OPTINLINE OPTALIAS OPTTIME OPTINLOCAL STRMERGE \ - NOICONS PARMS=BOTH NOSTACKCHECK UTILLIB NOVERSION ERRORREXX - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: SCOPTIONS example minigzip - -test: all - `cd`/example - echo hello world | minigzip | minigzip -d - -install: z.lib - copy zlib.h zconf.h INCLUDE: clone - copy z.lib LIB: clone - -z.lib: $(OBJS) - oml z.lib r $(OBJS) - -example: example.o z.lib - $(CC) $(CFLAGS) LINK TO $@ example.o $(LDFLAGS) - -minigzip: minigzip.o z.lib - $(CC) $(CFLAGS) LINK TO $@ minigzip.o $(LDFLAGS) - -clean: - -delete force quiet *.o example minigzip z.lib foo.gz *.lnk SCOPTIONS - -SCOPTIONS: Smakefile - copy to $@ <from < -$(SCOPTIONS) -< - -# DO NOT DELETE THIS LINE -- make depend depends on it. - -adler32.o: zutil.h zlib.h zconf.h -compress.o: zlib.h zconf.h -crc32.o: zutil.h zlib.h zconf.h -deflate.o: deflate.h zutil.h zlib.h zconf.h -example.o: zlib.h zconf.h -gzio.o: zutil.h zlib.h zconf.h -infblock.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h -infcodes.o: zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h -inffast.o: zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h -inflate.o: zutil.h zlib.h zconf.h infblock.h -inftrees.o: zutil.h zlib.h zconf.h inftrees.h -infutil.o: zutil.h zlib.h zconf.h inftrees.h infutil.h -minigzip.o: zlib.h zconf.h -trees.o: deflate.h zutil.h zlib.h zconf.h -uncompr.o: zlib.h zconf.h -zutil.o: zutil.h zlib.h zconf.h diff --git a/zlib/compress.c b/zlib/compress.c index 814bd9d6061..24ef0291911 100644 --- a/zlib/compress.c +++ b/zlib/compress.c @@ -1,10 +1,11 @@ /* compress.c -- compress a memory buffer * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ +#define ZLIB_INTERNAL #include "zlib.h" /* =========================================================================== @@ -66,3 +67,13 @@ int ZEXPORT compress (dest, destLen, source, sourceLen) { return compress2(dest, destLen, source, sourceLen, Z_DEFAULT_COMPRESSION); } + +/* =========================================================================== + If the default memLevel or windowBits for deflateInit() is changed, then + this function needs to be updated. + */ +uLong ZEXPORT compressBound (sourceLen) + uLong sourceLen; +{ + return sourceLen + (sourceLen >> 12) + (sourceLen >> 14) + 11; +} diff --git a/zlib/contrib/README.contrib b/zlib/contrib/README.contrib deleted file mode 100644 index 7ad191cf598..00000000000 --- a/zlib/contrib/README.contrib +++ /dev/null @@ -1,34 +0,0 @@ -All files under this contrib directory are UNSUPPORTED. There were -provided by users of zlib and were not tested by the authors of zlib. -Use at your own risk. Please contact the authors of the contributions -for help about these, not the zlib authors. Thanks. - - -asm386/ by Gilles Vollant <info@winimage.com> - 386 asm code replacing longest_match(), for Visual C++ 4.2 and ML 6.11c - -asm586/ and asm686/ by Brian Raiter <breadbox@muppetlabs.com> - asm code for Pentium and Pentium Pro - See http://www.muppetlabs.com/~breadbox/software/assembly.html - -delphi/ by Bob Dellaca <bobdl@xtra.co.nz> - Support for Delphi - -delphi2/ by Davide Moretti <dave@rimini.com> - Another support for C++Builder and Delphi - -minizip/ by Gilles Vollant <info@winimage.com> - Mini zip and unzip based on zlib - See http://www.winimage.com/zLibDll/unzip.html - -iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> - A C++ I/O streams interface to the zlib gz* functions - -iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> - Another C++ I/O streams interface - -untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> - A very simple tar.gz file extractor using zlib - -visual-basic.txt by Carlos Rios <c_rios@sonda.cl> - How to use compress(), uncompress() and the gz* functions from VB. diff --git a/zlib/contrib/asm386/gvmat32.asm b/zlib/contrib/asm386/gvmat32.asm deleted file mode 100644 index 28d527f47f8..00000000000 --- a/zlib/contrib/asm386/gvmat32.asm +++ /dev/null @@ -1,559 +0,0 @@ -; -; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86 -; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. -; File written by Gilles Vollant, by modifiying the longest_match -; from Jean-loup Gailly in deflate.c -; It need wmask == 0x7fff -; (assembly code is faster with a fixed wmask) -; -; For Visual C++ 4.2 and ML 6.11c (version in directory \MASM611C of Win95 DDK) -; I compile with : "ml /coff /Zi /c gvmat32.asm" -; - -;uInt longest_match_7fff(s, cur_match) -; deflate_state *s; -; IPos cur_match; /* current match */ - - NbStack equ 76 - cur_match equ dword ptr[esp+NbStack-0] - str_s equ dword ptr[esp+NbStack-4] -; 5 dword on top (ret,ebp,esi,edi,ebx) - adrret equ dword ptr[esp+NbStack-8] - pushebp equ dword ptr[esp+NbStack-12] - pushedi equ dword ptr[esp+NbStack-16] - pushesi equ dword ptr[esp+NbStack-20] - pushebx equ dword ptr[esp+NbStack-24] - - chain_length equ dword ptr [esp+NbStack-28] - limit equ dword ptr [esp+NbStack-32] - best_len equ dword ptr [esp+NbStack-36] - window equ dword ptr [esp+NbStack-40] - prev equ dword ptr [esp+NbStack-44] - scan_start equ word ptr [esp+NbStack-48] - wmask equ dword ptr [esp+NbStack-52] - match_start_ptr equ dword ptr [esp+NbStack-56] - nice_match equ dword ptr [esp+NbStack-60] - scan equ dword ptr [esp+NbStack-64] - - windowlen equ dword ptr [esp+NbStack-68] - match_start equ dword ptr [esp+NbStack-72] - strend equ dword ptr [esp+NbStack-76] - NbStackAdd equ (NbStack-24) - - .386p - - name gvmatch - .MODEL FLAT - - - -; all the +4 offsets are due to the addition of pending_buf_size (in zlib -; in the deflate_state structure since the asm code was first written -; (if you compile with zlib 1.0.4 or older, remove the +4). -; Note : these value are good with a 8 bytes boundary pack structure - dep_chain_length equ 70h+4 - dep_window equ 2ch+4 - dep_strstart equ 60h+4 - dep_prev_length equ 6ch+4 - dep_nice_match equ 84h+4 - dep_w_size equ 20h+4 - dep_prev equ 34h+4 - dep_w_mask equ 28h+4 - dep_good_match equ 80h+4 - dep_match_start equ 64h+4 - dep_lookahead equ 68h+4 - - -_TEXT segment - -IFDEF NOUNDERLINE - public longest_match_7fff -; public match_init -ELSE - public _longest_match_7fff -; public _match_init -ENDIF - - MAX_MATCH equ 258 - MIN_MATCH equ 3 - MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1) - - - -IFDEF NOUNDERLINE -;match_init proc near -; ret -;match_init endp -ELSE -;_match_init proc near -; ret -;_match_init endp -ENDIF - - -IFDEF NOUNDERLINE -longest_match_7fff proc near -ELSE -_longest_match_7fff proc near -ENDIF - - mov edx,[esp+4] - - - - push ebp - push edi - push esi - push ebx - - sub esp,NbStackAdd - -; initialize or check the variables used in match.asm. - mov ebp,edx - -; chain_length = s->max_chain_length -; if (prev_length>=good_match) chain_length >>= 2 - mov edx,[ebp+dep_chain_length] - mov ebx,[ebp+dep_prev_length] - cmp [ebp+dep_good_match],ebx - ja noshr - shr edx,2 -noshr: -; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop - inc edx - mov edi,[ebp+dep_nice_match] - mov chain_length,edx - mov eax,[ebp+dep_lookahead] - cmp eax,edi -; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - jae nolookaheadnicematch - mov edi,eax -nolookaheadnicematch: -; best_len = s->prev_length - mov best_len,ebx - -; window = s->window - mov esi,[ebp+dep_window] - mov ecx,[ebp+dep_strstart] - mov window,esi - - mov nice_match,edi -; scan = window + strstart - add esi,ecx - mov scan,esi -; dx = *window - mov dx,word ptr [esi] -; bx = *(window+best_len-1) - mov bx,word ptr [esi+ebx-1] - add esi,MAX_MATCH-1 -; scan_start = *scan - mov scan_start,dx -; strend = scan + MAX_MATCH-1 - mov strend,esi -; bx = scan_end = *(window+best_len-1) - -; IPos limit = s->strstart > (IPos)MAX_DIST(s) ? -; s->strstart - (IPos)MAX_DIST(s) : NIL; - - mov esi,[ebp+dep_w_size] - sub esi,MIN_LOOKAHEAD -; here esi = MAX_DIST(s) - sub ecx,esi - ja nodist - xor ecx,ecx -nodist: - mov limit,ecx - -; prev = s->prev - mov edx,[ebp+dep_prev] - mov prev,edx - -; - mov edx,dword ptr [ebp+dep_match_start] - mov bp,scan_start - mov eax,cur_match - mov match_start,edx - - mov edx,window - mov edi,edx - add edi,best_len - mov esi,prev - dec edi -; windowlen = window + best_len -1 - mov windowlen,edi - - jmp beginloop2 - align 4 - -; here, in the loop -; eax = ax = cur_match -; ecx = limit -; bx = scan_end -; bp = scan_start -; edi = windowlen (window + best_len -1) -; esi = prev - - -;// here; chain_length <=16 -normalbeg0add16: - add chain_length,16 - jz exitloop -normalbeg0: - cmp word ptr[edi+eax],bx - je normalbeg2noroll -rcontlabnoroll: -; cur_match = prev[cur_match & wmask] - and eax,7fffh - mov ax,word ptr[esi+eax*2] -; if cur_match > limit, go to exitloop - cmp ecx,eax - jnb exitloop -; if --chain_length != 0, go to exitloop - dec chain_length - jnz normalbeg0 - jmp exitloop - -normalbeg2noroll: -; if (scan_start==*(cur_match+window)) goto normalbeg2 - cmp bp,word ptr[edx+eax] - jne rcontlabnoroll - jmp normalbeg2 - -contloop3: - mov edi,windowlen - -; cur_match = prev[cur_match & wmask] - and eax,7fffh - mov ax,word ptr[esi+eax*2] -; if cur_match > limit, go to exitloop - cmp ecx,eax -jnbexitloopshort1: - jnb exitloop -; if --chain_length != 0, go to exitloop - - -; begin the main loop -beginloop2: - sub chain_length,16+1 -; if chain_length <=16, don't use the unrolled loop - jna normalbeg0add16 - -do16: - cmp word ptr[edi+eax],bx - je normalbeg2dc0 - -maccn MACRO lab - and eax,7fffh - mov ax,word ptr[esi+eax*2] - cmp ecx,eax - jnb exitloop - cmp word ptr[edi+eax],bx - je lab - ENDM - -rcontloop0: - maccn normalbeg2dc1 - -rcontloop1: - maccn normalbeg2dc2 - -rcontloop2: - maccn normalbeg2dc3 - -rcontloop3: - maccn normalbeg2dc4 - -rcontloop4: - maccn normalbeg2dc5 - -rcontloop5: - maccn normalbeg2dc6 - -rcontloop6: - maccn normalbeg2dc7 - -rcontloop7: - maccn normalbeg2dc8 - -rcontloop8: - maccn normalbeg2dc9 - -rcontloop9: - maccn normalbeg2dc10 - -rcontloop10: - maccn short normalbeg2dc11 - -rcontloop11: - maccn short normalbeg2dc12 - -rcontloop12: - maccn short normalbeg2dc13 - -rcontloop13: - maccn short normalbeg2dc14 - -rcontloop14: - maccn short normalbeg2dc15 - -rcontloop15: - and eax,7fffh - mov ax,word ptr[esi+eax*2] - cmp ecx,eax - jnb exitloop - - sub chain_length,16 - ja do16 - jmp normalbeg0add16 - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; - -normbeg MACRO rcontlab,valsub -; if we are here, we know that *(match+best_len-1) == scan_end - cmp bp,word ptr[edx+eax] -; if (match != scan_start) goto rcontlab - jne rcontlab -; calculate the good chain_length, and we'll compare scan and match string - add chain_length,16-valsub - jmp iseq - ENDM - - -normalbeg2dc11: - normbeg rcontloop11,11 - -normalbeg2dc12: - normbeg short rcontloop12,12 - -normalbeg2dc13: - normbeg short rcontloop13,13 - -normalbeg2dc14: - normbeg short rcontloop14,14 - -normalbeg2dc15: - normbeg short rcontloop15,15 - -normalbeg2dc10: - normbeg rcontloop10,10 - -normalbeg2dc9: - normbeg rcontloop9,9 - -normalbeg2dc8: - normbeg rcontloop8,8 - -normalbeg2dc7: - normbeg rcontloop7,7 - -normalbeg2dc6: - normbeg rcontloop6,6 - -normalbeg2dc5: - normbeg rcontloop5,5 - -normalbeg2dc4: - normbeg rcontloop4,4 - -normalbeg2dc3: - normbeg rcontloop3,3 - -normalbeg2dc2: - normbeg rcontloop2,2 - -normalbeg2dc1: - normbeg rcontloop1,1 - -normalbeg2dc0: - normbeg rcontloop0,0 - - -; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end - -normalbeg2: - mov edi,window - - cmp bp,word ptr[edi+eax] - jne contloop3 ; if *(ushf*)match != scan_start, continue - -iseq: -; if we are here, we know that *(match+best_len-1) == scan_end -; and (match == scan_start) - - mov edi,edx - mov esi,scan ; esi = scan - add edi,eax ; edi = window + cur_match = match - - mov edx,[esi+3] ; compare manually dword at match+3 - xor edx,[edi+3] ; and scan +3 - - jz begincompare ; if equal, go to long compare - -; we will determine the unmatch byte and calculate len (in esi) - or dl,dl - je eq1rr - mov esi,3 - jmp trfinval -eq1rr: - or dx,dx - je eq1 - - mov esi,4 - jmp trfinval -eq1: - and edx,0ffffffh - jz eq11 - mov esi,5 - jmp trfinval -eq11: - mov esi,6 - jmp trfinval - -begincompare: - ; here we now scan and match begin same - add edi,6 - add esi,6 - mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes - repe cmpsd ; loop until mismatch - - je trfin ; go to trfin if not unmatch -; we determine the unmatch byte - sub esi,4 - mov edx,[edi-4] - xor edx,[esi] - - or dl,dl - jnz trfin - inc esi - - or dx,dx - jnz trfin - inc esi - - and edx,0ffffffh - jnz trfin - inc esi - -trfin: - sub esi,scan ; esi = len -trfinval: -; here we have finised compare, and esi contain len of equal string - cmp esi,best_len ; if len > best_len, go newbestlen - ja short newbestlen -; now we restore edx, ecx and esi, for the big loop - mov esi,prev - mov ecx,limit - mov edx,window - jmp contloop3 - -newbestlen: - mov best_len,esi ; len become best_len - - mov match_start,eax ; save new position as match_start - cmp esi,nice_match ; if best_len >= nice_match, exit - jae exitloop - mov ecx,scan - mov edx,window ; restore edx=window - add ecx,esi - add esi,edx - - dec esi - mov windowlen,esi ; windowlen = window + best_len-1 - mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end - -; now we restore ecx and esi, for the big loop : - mov esi,prev - mov ecx,limit - jmp contloop3 - -exitloop: -; exit : s->match_start=match_start - mov ebx,match_start - mov ebp,str_s - mov ecx,best_len - mov dword ptr [ebp+dep_match_start],ebx - mov eax,dword ptr [ebp+dep_lookahead] - cmp ecx,eax - ja minexlo - mov eax,ecx -minexlo: -; return min(best_len,s->lookahead) - -; restore stack and register ebx,esi,edi,ebp - add esp,NbStackAdd - - pop ebx - pop esi - pop edi - pop ebp - ret -InfoAuthor: -; please don't remove this string ! -; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary! - db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah - - - -IFDEF NOUNDERLINE -longest_match_7fff endp -ELSE -_longest_match_7fff endp -ENDIF - - -IFDEF NOUNDERLINE -cpudetect32 proc near -ELSE -_cpudetect32 proc near -ENDIF - - - pushfd ; push original EFLAGS - pop eax ; get original EFLAGS - mov ecx, eax ; save original EFLAGS - xor eax, 40000h ; flip AC bit in EFLAGS - push eax ; save new EFLAGS value on stack - popfd ; replace current EFLAGS value - pushfd ; get new EFLAGS - pop eax ; store new EFLAGS in EAX - xor eax, ecx ; can’t toggle AC bit, processor=80386 - jz end_cpu_is_386 ; jump if 80386 processor - push ecx - popfd ; restore AC bit in EFLAGS first - - pushfd - pushfd - pop ecx - - mov eax, ecx ; get original EFLAGS - xor eax, 200000h ; flip ID bit in EFLAGS - push eax ; save new EFLAGS value on stack - popfd ; replace current EFLAGS value - pushfd ; get new EFLAGS - pop eax ; store new EFLAGS in EAX - popfd ; restore original EFLAGS - xor eax, ecx ; can’t toggle ID bit, - je is_old_486 ; processor=old - - mov eax,1 - db 0fh,0a2h ;CPUID - -exitcpudetect: - ret - -end_cpu_is_386: - mov eax,0300h - jmp exitcpudetect - -is_old_486: - mov eax,0400h - jmp exitcpudetect - -IFDEF NOUNDERLINE -cpudetect32 endp -ELSE -_cpudetect32 endp -ENDIF - -_TEXT ends -end diff --git a/zlib/contrib/asm386/gvmat32c.c b/zlib/contrib/asm386/gvmat32c.c deleted file mode 100644 index d853bb7ce8a..00000000000 --- a/zlib/contrib/asm386/gvmat32c.c +++ /dev/null @@ -1,200 +0,0 @@ -/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86 - * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant. - * File written by Gilles Vollant, by modifiying the longest_match - * from Jean-loup Gailly in deflate.c - * it prepare all parameters and call the assembly longest_match_gvasm - * longest_match execute standard C code is wmask != 0x7fff - * (assembly code is faster with a fixed wmask) - * - */ - -#include "deflate.h" - -#undef FAR -#include <windows.h> - -#ifdef ASMV -#define NIL 0 - -#define UNALIGNED_OK - - -/* if your C compiler don't add underline before function name, - define ADD_UNDERLINE_ASMFUNC */ -#ifdef ADD_UNDERLINE_ASMFUNC -#define longest_match_7fff _longest_match_7fff -#endif - - - -void match_init() -{ -} - -unsigned long cpudetect32(); - -uInt longest_match_c( - deflate_state *s, - IPos cur_match); /* current match */ - - -uInt longest_match_7fff( - deflate_state *s, - IPos cur_match); /* current match */ - -uInt longest_match( - deflate_state *s, - IPos cur_match) /* current match */ -{ - static uInt iIsPPro=2; - - if ((s->w_mask == 0x7fff) && (iIsPPro==0)) - return longest_match_7fff(s,cur_match); - - if (iIsPPro==2) - iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0; - - return longest_match_c(s,cur_match); -} - - - -uInt longest_match_c(s, cur_match) - deflate_state *s; - IPos cur_match; /* current match */ -{ - unsigned chain_length = s->max_chain_length;/* max hash chain length */ - register Bytef *scan = s->window + s->strstart; /* current string */ - register Bytef *match; /* matched string */ - register int len; /* length of current match */ - int best_len = s->prev_length; /* best match length so far */ - int nice_match = s->nice_match; /* stop if match long enough */ - IPos limit = s->strstart > (IPos)MAX_DIST(s) ? - s->strstart - (IPos)MAX_DIST(s) : NIL; - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - Posf *prev = s->prev; - uInt wmask = s->w_mask; - -#ifdef UNALIGNED_OK - /* Compare two bytes at a time. Note: this is not always beneficial. - * Try with and without -DUNALIGNED_OK to check. - */ - register Bytef *strend = s->window + s->strstart + MAX_MATCH - 1; - register ush scan_start = *(ushf*)scan; - register ush scan_end = *(ushf*)(scan+best_len-1); -#else - register Bytef *strend = s->window + s->strstart + MAX_MATCH; - register Byte scan_end1 = scan[best_len-1]; - register Byte scan_end = scan[best_len]; -#endif - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s->prev_length >= s->good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; - - Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - Assert(cur_match < s->strstart, "no future"); - match = s->window + cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2: - */ -#if (defined(UNALIGNED_OK) && MAX_MATCH == 258) - /* This code assumes sizeof(unsigned short) == 2. Do not use - * UNALIGNED_OK if your compiler uses a different size. - */ - if (*(ushf*)(match+best_len-1) != scan_end || - *(ushf*)match != scan_start) continue; - - /* It is not necessary to compare scan[2] and match[2] since they are - * always equal when the other bytes match, given that the hash keys - * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at - * strstart+3, +5, ... up to strstart+257. We check for insufficient - * lookahead only every 4th comparison; the 128th check will be made - * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is - * necessary to put more guard bytes at the end of the window, or - * to check more often for insufficient lookahead. - */ - Assert(scan[2] == match[2], "scan[2]?"); - scan++, match++; - do { - } while (*(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - *(ushf*)(scan+=2) == *(ushf*)(match+=2) && - scan < strend); - /* The funny "do {}" generates better code on most compilers */ - - /* Here, scan <= window+strstart+257 */ - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - if (*scan == *match) scan++; - - len = (MAX_MATCH - 1) - (int)(strend-scan); - scan = strend - (MAX_MATCH-1); - -#else /* UNALIGNED_OK */ - - if (match[best_len] != scan_end || - match[best_len-1] != scan_end1 || - *match != *scan || - *++match != scan[1]) continue; - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2, match++; - Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); - - Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (int)(strend - scan); - scan = strend - MAX_MATCH; - -#endif /* UNALIGNED_OK */ - - if (len > best_len) { - s->match_start = cur_match; - best_len = len; - if (len >= nice_match) break; -#ifdef UNALIGNED_OK - scan_end = *(ushf*)(scan+best_len-1); -#else - scan_end1 = scan[best_len-1]; - scan_end = scan[best_len]; -#endif - } - } while ((cur_match = prev[cur_match & wmask]) > limit - && --chain_length != 0); - - if ((uInt)best_len <= s->lookahead) return (uInt)best_len; - return s->lookahead; -} - -#endif /* ASMV */ diff --git a/zlib/contrib/asm386/mkgvmt32.bat b/zlib/contrib/asm386/mkgvmt32.bat deleted file mode 100644 index 6c5ffd7a024..00000000000 --- a/zlib/contrib/asm386/mkgvmt32.bat +++ /dev/null @@ -1 +0,0 @@ -c:\masm611\bin\ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm diff --git a/zlib/contrib/asm386/zlibvc.def b/zlib/contrib/asm386/zlibvc.def deleted file mode 100644 index 7e9d60d55d9..00000000000 --- a/zlib/contrib/asm386/zlibvc.def +++ /dev/null @@ -1,74 +0,0 @@ -LIBRARY "zlib" - -DESCRIPTION '"""zlib data compression library"""' - - -VERSION 1.11 - - -HEAPSIZE 1048576,8192 - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 - - unzOpen @61 - unzClose @62 - unzGetGlobalInfo @63 - unzGetCurrentFileInfo @64 - unzGoToFirstFile @65 - unzGoToNextFile @66 - unzOpenCurrentFile @67 - unzReadCurrentFile @68 - unztell @70 - unzeof @71 - unzCloseCurrentFile @72 - unzGetGlobalComment @73 - unzStringFileNameCompare @74 - unzLocateFile @75 - unzGetLocalExtrafield @76 - - zipOpen @80 - zipOpenNewFileInZip @81 - zipWriteInFileInZip @82 - zipCloseFileInZip @83 - zipClose @84 diff --git a/zlib/contrib/asm386/zlibvc.dsp b/zlib/contrib/asm386/zlibvc.dsp deleted file mode 100644 index 63d8fee6511..00000000000 --- a/zlib/contrib/asm386/zlibvc.dsp +++ /dev/null @@ -1,651 +0,0 @@ -# Microsoft Developer Studio Project File - Name="zlibvc" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 5.00 -# ** DO NOT EDIT ** - -# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102 -# TARGTYPE "Win32 (ALPHA) Dynamic-Link Library" 0x0602 - -CFG=zlibvc - Win32 Release -!MESSAGE This is not a valid makefile. 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-############################################################################### - -Project: "zlibstat"=.\zlibstat.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "zlibvc"=.\zlibvc.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/zlib/contrib/asm586/match.s b/zlib/contrib/asm586/match.s deleted file mode 100644 index 8f1614078f8..00000000000 --- a/zlib/contrib/asm586/match.s +++ /dev/null @@ -1,354 +0,0 @@ -/* match.s -- Pentium-optimized version of longest_match() - * Written for zlib 1.1.2 - * Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com> - * - * This is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License. - */ - -#ifndef NO_UNDERLINE -#define match_init _match_init -#define longest_match _longest_match -#endif - -#define MAX_MATCH (258) -#define MIN_MATCH (3) -#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) -#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) - -/* stack frame offsets */ - -#define wmask 0 /* local copy of s->wmask */ -#define window 4 /* local copy of s->window */ -#define windowbestlen 8 /* s->window + bestlen */ -#define chainlenscanend 12 /* high word: current chain len */ - /* low word: last bytes sought */ -#define scanstart 16 /* first two bytes of string */ -#define scanalign 20 /* dword-misalignment of string */ -#define nicematch 24 /* a good enough match size */ -#define bestlen 28 /* size of best match so far */ -#define scan 32 /* ptr to string wanting match */ - -#define LocalVarsSize (36) -/* saved ebx 36 */ -/* saved edi 40 */ -/* saved esi 44 */ -/* saved ebp 48 */ -/* return address 52 */ -#define deflatestate 56 /* the function arguments */ -#define curmatch 60 - -/* Offsets for fields in the deflate_state structure. These numbers - * are calculated from the definition of deflate_state, with the - * assumption that the compiler will dword-align the fields. (Thus, - * changing the definition of deflate_state could easily cause this - * program to crash horribly, without so much as a warning at - * compile time. Sigh.) - */ -#define dsWSize 36 -#define dsWMask 44 -#define dsWindow 48 -#define dsPrev 56 -#define dsMatchLen 88 -#define dsPrevMatch 92 -#define dsStrStart 100 -#define dsMatchStart 104 -#define dsLookahead 108 -#define dsPrevLen 112 -#define dsMaxChainLen 116 -#define dsGoodMatch 132 -#define dsNiceMatch 136 - - -.file "match.S" - -.globl match_init, longest_match - -.text - -/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ - -longest_match: - -/* Save registers that the compiler may be using, and adjust %esp to */ -/* make room for our stack frame. */ - - pushl %ebp - pushl %edi - pushl %esi - pushl %ebx - subl $LocalVarsSize, %esp - -/* Retrieve the function arguments. %ecx will hold cur_match */ -/* throughout the entire function. %edx will hold the pointer to the */ -/* deflate_state structure during the function's setup (before */ -/* entering the main loop). */ - - movl deflatestate(%esp), %edx - movl curmatch(%esp), %ecx - -/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ - - movl dsNiceMatch(%edx), %eax - movl dsLookahead(%edx), %ebx - cmpl %eax, %ebx - jl LookaheadLess - movl %eax, %ebx -LookaheadLess: movl %ebx, nicematch(%esp) - -/* register Bytef *scan = s->window + s->strstart; */ - - movl dsWindow(%edx), %esi - movl %esi, window(%esp) - movl dsStrStart(%edx), %ebp - lea (%esi,%ebp), %edi - movl %edi, scan(%esp) - -/* Determine how many bytes the scan ptr is off from being */ -/* dword-aligned. */ - - movl %edi, %eax - negl %eax - andl $3, %eax - movl %eax, scanalign(%esp) - -/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ -/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ - - movl dsWSize(%edx), %eax - subl $MIN_LOOKAHEAD, %eax - subl %eax, %ebp - jg LimitPositive - xorl %ebp, %ebp -LimitPositive: - -/* unsigned chain_length = s->max_chain_length; */ -/* if (s->prev_length >= s->good_match) { */ -/* chain_length >>= 2; */ -/* } */ - - movl dsPrevLen(%edx), %eax - movl dsGoodMatch(%edx), %ebx - cmpl %ebx, %eax - movl dsMaxChainLen(%edx), %ebx - jl LastMatchGood - shrl $2, %ebx -LastMatchGood: - -/* chainlen is decremented once beforehand so that the function can */ -/* use the sign flag instead of the zero flag for the exit test. */ -/* It is then shifted into the high word, to make room for the scanend */ -/* scanend value, which it will always accompany. */ - - decl %ebx - shll $16, %ebx - -/* int best_len = s->prev_length; */ - - movl dsPrevLen(%edx), %eax - movl %eax, bestlen(%esp) - -/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ - - addl %eax, %esi - movl %esi, windowbestlen(%esp) - -/* register ush scan_start = *(ushf*)scan; */ -/* register ush scan_end = *(ushf*)(scan+best_len-1); */ - - movw (%edi), %bx - movw %bx, scanstart(%esp) - movw -1(%edi,%eax), %bx - movl %ebx, chainlenscanend(%esp) - -/* Posf *prev = s->prev; */ -/* uInt wmask = s->w_mask; */ - - movl dsPrev(%edx), %edi - movl dsWMask(%edx), %edx - mov %edx, wmask(%esp) - -/* Jump into the main loop. */ - - jmp LoopEntry - -.balign 16 - -/* do { - * match = s->window + cur_match; - * if (*(ushf*)(match+best_len-1) != scan_end || - * *(ushf*)match != scan_start) continue; - * [...] - * } while ((cur_match = prev[cur_match & wmask]) > limit - * && --chain_length != 0); - * - * Here is the inner loop of the function. The function will spend the - * majority of its time in this loop, and majority of that time will - * be spent in the first ten instructions. - * - * Within this loop: - * %ebx = chainlenscanend - i.e., ((chainlen << 16) | scanend) - * %ecx = curmatch - * %edx = curmatch & wmask - * %esi = windowbestlen - i.e., (window + bestlen) - * %edi = prev - * %ebp = limit - * - * Two optimization notes on the choice of instructions: - * - * The first instruction uses a 16-bit address, which costs an extra, - * unpairable cycle. This is cheaper than doing a 32-bit access and - * zeroing the high word, due to the 3-cycle misalignment penalty which - * would occur half the time. This also turns out to be cheaper than - * doing two separate 8-bit accesses, as the memory is so rarely in the - * L1 cache. - * - * The window buffer, however, apparently spends a lot of time in the - * cache, and so it is faster to retrieve the word at the end of the - * match string with two 8-bit loads. The instructions that test the - * word at the beginning of the match string, however, are executed - * much less frequently, and there it was cheaper to use 16-bit - * instructions, which avoided the necessity of saving off and - * subsequently reloading one of the other registers. - */ -LookupLoop: - /* 1 U & V */ - movw (%edi,%edx,2), %cx /* 2 U pipe */ - movl wmask(%esp), %edx /* 2 V pipe */ - cmpl %ebp, %ecx /* 3 U pipe */ - jbe LeaveNow /* 3 V pipe */ - subl $0x00010000, %ebx /* 4 U pipe */ - js LeaveNow /* 4 V pipe */ -LoopEntry: movb -1(%esi,%ecx), %al /* 5 U pipe */ - andl %ecx, %edx /* 5 V pipe */ - cmpb %bl, %al /* 6 U pipe */ - jnz LookupLoop /* 6 V pipe */ - movb (%esi,%ecx), %ah - cmpb %bh, %ah - jnz LookupLoop - movl window(%esp), %eax - movw (%eax,%ecx), %ax - cmpw scanstart(%esp), %ax - jnz LookupLoop - -/* Store the current value of chainlen. */ - - movl %ebx, chainlenscanend(%esp) - -/* Point %edi to the string under scrutiny, and %esi to the string we */ -/* are hoping to match it up with. In actuality, %esi and %edi are */ -/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ -/* initialized to -(MAX_MATCH_8 - scanalign). */ - - movl window(%esp), %esi - movl scan(%esp), %edi - addl %ecx, %esi - movl scanalign(%esp), %eax - movl $(-MAX_MATCH_8), %edx - lea MAX_MATCH_8(%edi,%eax), %edi - lea MAX_MATCH_8(%esi,%eax), %esi - -/* Test the strings for equality, 8 bytes at a time. At the end, - * adjust %edx so that it is offset to the exact byte that mismatched. - * - * We already know at this point that the first three bytes of the - * strings match each other, and they can be safely passed over before - * starting the compare loop. So what this code does is skip over 0-3 - * bytes, as much as necessary in order to dword-align the %edi - * pointer. (%esi will still be misaligned three times out of four.) - * - * It should be confessed that this loop usually does not represent - * much of the total running time. Replacing it with a more - * straightforward "rep cmpsb" would not drastically degrade - * performance. - */ -LoopCmps: - movl (%esi,%edx), %eax - movl (%edi,%edx), %ebx - xorl %ebx, %eax - jnz LeaveLoopCmps - movl 4(%esi,%edx), %eax - movl 4(%edi,%edx), %ebx - xorl %ebx, %eax - jnz LeaveLoopCmps4 - addl $8, %edx - jnz LoopCmps - jmp LenMaximum -LeaveLoopCmps4: addl $4, %edx -LeaveLoopCmps: testl $0x0000FFFF, %eax - jnz LenLower - addl $2, %edx - shrl $16, %eax -LenLower: subb $1, %al - adcl $0, %edx - -/* Calculate the length of the match. If it is longer than MAX_MATCH, */ -/* then automatically accept it as the best possible match and leave. */ - - lea (%edi,%edx), %eax - movl scan(%esp), %edi - subl %edi, %eax - cmpl $MAX_MATCH, %eax - jge LenMaximum - -/* If the length of the match is not longer than the best match we */ -/* have so far, then forget it and return to the lookup loop. */ - - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - cmpl %ebx, %eax - jg LongerMatch - movl chainlenscanend(%esp), %ebx - movl windowbestlen(%esp), %esi - movl dsPrev(%edx), %edi - movl wmask(%esp), %edx - andl %ecx, %edx - jmp LookupLoop - -/* s->match_start = cur_match; */ -/* best_len = len; */ -/* if (len >= nice_match) break; */ -/* scan_end = *(ushf*)(scan+best_len-1); */ - -LongerMatch: movl nicematch(%esp), %ebx - movl %eax, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - cmpl %ebx, %eax - jge LeaveNow - movl window(%esp), %esi - addl %eax, %esi - movl %esi, windowbestlen(%esp) - movl chainlenscanend(%esp), %ebx - movw -1(%edi,%eax), %bx - movl dsPrev(%edx), %edi - movl %ebx, chainlenscanend(%esp) - movl wmask(%esp), %edx - andl %ecx, %edx - jmp LookupLoop - -/* Accept the current string, with the maximum possible length. */ - -LenMaximum: movl deflatestate(%esp), %edx - movl $MAX_MATCH, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - -/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ -/* return s->lookahead; */ - -LeaveNow: - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - movl dsLookahead(%edx), %eax - cmpl %eax, %ebx - jg LookaheadRet - movl %ebx, %eax -LookaheadRet: - -/* Restore the stack and return from whence we came. */ - - addl $LocalVarsSize, %esp - popl %ebx - popl %esi - popl %edi - popl %ebp -match_init: ret diff --git a/zlib/contrib/asm586/readme.586 b/zlib/contrib/asm586/readme.586 deleted file mode 100644 index 6bb78f32069..00000000000 --- a/zlib/contrib/asm586/readme.586 +++ /dev/null @@ -1,43 +0,0 @@ -This is a patched version of zlib modified to use -Pentium-optimized assembly code in the deflation algorithm. The files -changed/added by this patch are: - -README.586 -match.S - -The effectiveness of these modifications is a bit marginal, as the the -program's bottleneck seems to be mostly L1-cache contention, for which -there is no real way to work around without rewriting the basic -algorithm. The speedup on average is around 5-10% (which is generally -less than the amount of variance between subsequent executions). -However, when used at level 9 compression, the cache contention can -drop enough for the assembly version to achieve 10-20% speedup (and -sometimes more, depending on the amount of overall redundancy in the -files). Even here, though, cache contention can still be the limiting -factor, depending on the nature of the program using the zlib library. -This may also mean that better improvements will be seen on a Pentium -with MMX, which suffers much less from L1-cache contention, but I have -not yet verified this. - -Note that this code has been tailored for the Pentium in particular, -and will not perform well on the Pentium Pro (due to the use of a -partial register in the inner loop). - -If you are using an assembler other than GNU as, you will have to -translate match.S to use your assembler's syntax. (Have fun.) - -Brian Raiter -breadbox@muppetlabs.com -April, 1998 - - -Added for zlib 1.1.3: - -The patches come from -http://www.muppetlabs.com/~breadbox/software/assembly.html - -To compile zlib with this asm file, copy match.S to the zlib directory -then do: - -CFLAGS="-O3 -DASMV" ./configure -make OBJA=match.o diff --git a/zlib/contrib/asm686/match.s b/zlib/contrib/asm686/match.s deleted file mode 100644 index 8e86c33c288..00000000000 --- a/zlib/contrib/asm686/match.s +++ /dev/null @@ -1,327 +0,0 @@ -/* match.s -- Pentium-Pro-optimized version of longest_match() - * Written for zlib 1.1.2 - * Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com> - * - * This is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License. - */ - -#ifndef NO_UNDERLINE -#define match_init _match_init -#define longest_match _longest_match -#endif - -#define MAX_MATCH (258) -#define MIN_MATCH (3) -#define MIN_LOOKAHEAD (MAX_MATCH + MIN_MATCH + 1) -#define MAX_MATCH_8 ((MAX_MATCH + 7) & ~7) - -/* stack frame offsets */ - -#define chainlenwmask 0 /* high word: current chain len */ - /* low word: s->wmask */ -#define window 4 /* local copy of s->window */ -#define windowbestlen 8 /* s->window + bestlen */ -#define scanstart 16 /* first two bytes of string */ -#define scanend 12 /* last two bytes of string */ -#define scanalign 20 /* dword-misalignment of string */ -#define nicematch 24 /* a good enough match size */ -#define bestlen 28 /* size of best match so far */ -#define scan 32 /* ptr to string wanting match */ - -#define LocalVarsSize (36) -/* saved ebx 36 */ -/* saved edi 40 */ -/* saved esi 44 */ -/* saved ebp 48 */ -/* return address 52 */ -#define deflatestate 56 /* the function arguments */ -#define curmatch 60 - -/* Offsets for fields in the deflate_state structure. These numbers - * are calculated from the definition of deflate_state, with the - * assumption that the compiler will dword-align the fields. (Thus, - * changing the definition of deflate_state could easily cause this - * program to crash horribly, without so much as a warning at - * compile time. Sigh.) - */ -#define dsWSize 36 -#define dsWMask 44 -#define dsWindow 48 -#define dsPrev 56 -#define dsMatchLen 88 -#define dsPrevMatch 92 -#define dsStrStart 100 -#define dsMatchStart 104 -#define dsLookahead 108 -#define dsPrevLen 112 -#define dsMaxChainLen 116 -#define dsGoodMatch 132 -#define dsNiceMatch 136 - - -.file "match.S" - -.globl match_init, longest_match - -.text - -/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */ - -longest_match: - -/* Save registers that the compiler may be using, and adjust %esp to */ -/* make room for our stack frame. */ - - pushl %ebp - pushl %edi - pushl %esi - pushl %ebx - subl $LocalVarsSize, %esp - -/* Retrieve the function arguments. %ecx will hold cur_match */ -/* throughout the entire function. %edx will hold the pointer to the */ -/* deflate_state structure during the function's setup (before */ -/* entering the main loop). */ - - movl deflatestate(%esp), %edx - movl curmatch(%esp), %ecx - -/* uInt wmask = s->w_mask; */ -/* unsigned chain_length = s->max_chain_length; */ -/* if (s->prev_length >= s->good_match) { */ -/* chain_length >>= 2; */ -/* } */ - - movl dsPrevLen(%edx), %eax - movl dsGoodMatch(%edx), %ebx - cmpl %ebx, %eax - movl dsWMask(%edx), %eax - movl dsMaxChainLen(%edx), %ebx - jl LastMatchGood - shrl $2, %ebx -LastMatchGood: - -/* chainlen is decremented once beforehand so that the function can */ -/* use the sign flag instead of the zero flag for the exit test. */ -/* It is then shifted into the high word, to make room for the wmask */ -/* value, which it will always accompany. */ - - decl %ebx - shll $16, %ebx - orl %eax, %ebx - movl %ebx, chainlenwmask(%esp) - -/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead; */ - - movl dsNiceMatch(%edx), %eax - movl dsLookahead(%edx), %ebx - cmpl %eax, %ebx - jl LookaheadLess - movl %eax, %ebx -LookaheadLess: movl %ebx, nicematch(%esp) - -/* register Bytef *scan = s->window + s->strstart; */ - - movl dsWindow(%edx), %esi - movl %esi, window(%esp) - movl dsStrStart(%edx), %ebp - lea (%esi,%ebp), %edi - movl %edi, scan(%esp) - -/* Determine how many bytes the scan ptr is off from being */ -/* dword-aligned. */ - - movl %edi, %eax - negl %eax - andl $3, %eax - movl %eax, scanalign(%esp) - -/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ? */ -/* s->strstart - (IPos)MAX_DIST(s) : NIL; */ - - movl dsWSize(%edx), %eax - subl $MIN_LOOKAHEAD, %eax - subl %eax, %ebp - jg LimitPositive - xorl %ebp, %ebp -LimitPositive: - -/* int best_len = s->prev_length; */ - - movl dsPrevLen(%edx), %eax - movl %eax, bestlen(%esp) - -/* Store the sum of s->window + best_len in %esi locally, and in %esi. */ - - addl %eax, %esi - movl %esi, windowbestlen(%esp) - -/* register ush scan_start = *(ushf*)scan; */ -/* register ush scan_end = *(ushf*)(scan+best_len-1); */ -/* Posf *prev = s->prev; */ - - movzwl (%edi), %ebx - movl %ebx, scanstart(%esp) - movzwl -1(%edi,%eax), %ebx - movl %ebx, scanend(%esp) - movl dsPrev(%edx), %edi - -/* Jump into the main loop. */ - - movl chainlenwmask(%esp), %edx - jmp LoopEntry - -.balign 16 - -/* do { - * match = s->window + cur_match; - * if (*(ushf*)(match+best_len-1) != scan_end || - * *(ushf*)match != scan_start) continue; - * [...] - * } while ((cur_match = prev[cur_match & wmask]) > limit - * && --chain_length != 0); - * - * Here is the inner loop of the function. The function will spend the - * majority of its time in this loop, and majority of that time will - * be spent in the first ten instructions. - * - * Within this loop: - * %ebx = scanend - * %ecx = curmatch - * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask) - * %esi = windowbestlen - i.e., (window + bestlen) - * %edi = prev - * %ebp = limit - */ -LookupLoop: - andl %edx, %ecx - movzwl (%edi,%ecx,2), %ecx - cmpl %ebp, %ecx - jbe LeaveNow - subl $0x00010000, %edx - js LeaveNow -LoopEntry: movzwl -1(%esi,%ecx), %eax - cmpl %ebx, %eax - jnz LookupLoop - movl window(%esp), %eax - movzwl (%eax,%ecx), %eax - cmpl scanstart(%esp), %eax - jnz LookupLoop - -/* Store the current value of chainlen. */ - - movl %edx, chainlenwmask(%esp) - -/* Point %edi to the string under scrutiny, and %esi to the string we */ -/* are hoping to match it up with. In actuality, %esi and %edi are */ -/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is */ -/* initialized to -(MAX_MATCH_8 - scanalign). */ - - movl window(%esp), %esi - movl scan(%esp), %edi - addl %ecx, %esi - movl scanalign(%esp), %eax - movl $(-MAX_MATCH_8), %edx - lea MAX_MATCH_8(%edi,%eax), %edi - lea MAX_MATCH_8(%esi,%eax), %esi - -/* Test the strings for equality, 8 bytes at a time. At the end, - * adjust %edx so that it is offset to the exact byte that mismatched. - * - * We already know at this point that the first three bytes of the - * strings match each other, and they can be safely passed over before - * starting the compare loop. So what this code does is skip over 0-3 - * bytes, as much as necessary in order to dword-align the %edi - * pointer. (%esi will still be misaligned three times out of four.) - * - * It should be confessed that this loop usually does not represent - * much of the total running time. Replacing it with a more - * straightforward "rep cmpsb" would not drastically degrade - * performance. - */ -LoopCmps: - movl (%esi,%edx), %eax - xorl (%edi,%edx), %eax - jnz LeaveLoopCmps - movl 4(%esi,%edx), %eax - xorl 4(%edi,%edx), %eax - jnz LeaveLoopCmps4 - addl $8, %edx - jnz LoopCmps - jmp LenMaximum -LeaveLoopCmps4: addl $4, %edx -LeaveLoopCmps: testl $0x0000FFFF, %eax - jnz LenLower - addl $2, %edx - shrl $16, %eax -LenLower: subb $1, %al - adcl $0, %edx - -/* Calculate the length of the match. If it is longer than MAX_MATCH, */ -/* then automatically accept it as the best possible match and leave. */ - - lea (%edi,%edx), %eax - movl scan(%esp), %edi - subl %edi, %eax - cmpl $MAX_MATCH, %eax - jge LenMaximum - -/* If the length of the match is not longer than the best match we */ -/* have so far, then forget it and return to the lookup loop. */ - - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - cmpl %ebx, %eax - jg LongerMatch - movl windowbestlen(%esp), %esi - movl dsPrev(%edx), %edi - movl scanend(%esp), %ebx - movl chainlenwmask(%esp), %edx - jmp LookupLoop - -/* s->match_start = cur_match; */ -/* best_len = len; */ -/* if (len >= nice_match) break; */ -/* scan_end = *(ushf*)(scan+best_len-1); */ - -LongerMatch: movl nicematch(%esp), %ebx - movl %eax, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - cmpl %ebx, %eax - jge LeaveNow - movl window(%esp), %esi - addl %eax, %esi - movl %esi, windowbestlen(%esp) - movzwl -1(%edi,%eax), %ebx - movl dsPrev(%edx), %edi - movl %ebx, scanend(%esp) - movl chainlenwmask(%esp), %edx - jmp LookupLoop - -/* Accept the current string, with the maximum possible length. */ - -LenMaximum: movl deflatestate(%esp), %edx - movl $MAX_MATCH, bestlen(%esp) - movl %ecx, dsMatchStart(%edx) - -/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len; */ -/* return s->lookahead; */ - -LeaveNow: - movl deflatestate(%esp), %edx - movl bestlen(%esp), %ebx - movl dsLookahead(%edx), %eax - cmpl %eax, %ebx - jg LookaheadRet - movl %ebx, %eax -LookaheadRet: - -/* Restore the stack and return from whence we came. */ - - addl $LocalVarsSize, %esp - popl %ebx - popl %esi - popl %edi - popl %ebp -match_init: ret diff --git a/zlib/contrib/asm686/readme.686 b/zlib/contrib/asm686/readme.686 deleted file mode 100644 index a593f23afd6..00000000000 --- a/zlib/contrib/asm686/readme.686 +++ /dev/null @@ -1,34 +0,0 @@ -This is a patched version of zlib, modified to use -Pentium-Pro-optimized assembly code in the deflation algorithm. The -files changed/added by this patch are: - -README.686 -match.S - -The speedup that this patch provides varies, depending on whether the -compiler used to build the original version of zlib falls afoul of the -PPro's speed traps. My own tests show a speedup of around 10-20% at -the default compression level, and 20-30% using -9, against a version -compiled using gcc 2.7.2.3. Your mileage may vary. - -Note that this code has been tailored for the PPro/PII in particular, -and will not perform particuarly well on a Pentium. - -If you are using an assembler other than GNU as, you will have to -translate match.S to use your assembler's syntax. (Have fun.) - -Brian Raiter -breadbox@muppetlabs.com -April, 1998 - - -Added for zlib 1.1.3: - -The patches come from -http://www.muppetlabs.com/~breadbox/software/assembly.html - -To compile zlib with this asm file, copy match.S to the zlib directory -then do: - -CFLAGS="-O3 -DASMV" ./configure -make OBJA=match.o diff --git a/zlib/contrib/delphi/zlib.mak b/zlib/contrib/delphi/zlib.mak deleted file mode 100644 index ba557e2b977..00000000000 --- a/zlib/contrib/delphi/zlib.mak +++ /dev/null @@ -1,36 +0,0 @@ -# Makefile for zlib32bd.lib -# ------------- Borland C++ 4.5 ------------- - -# The (32-bit) zlib32bd.lib made with this makefile is intended for use -# in making the (32-bit) DLL, png32bd.dll. It uses the "stdcall" calling -# convention. - -CFLAGS= -ps -O2 -C -K -N- -k- -d -3 -r- -w-par -w-aus -WDE -CC=f:\bc45\bin\bcc32 -LIBFLAGS= /C -LIB=f:\bc45\bin\tlib -ZLIB=zlib32bd.lib - -.autodepend -.c.obj: - $(CC) -c $(CFLAGS) $< - -OBJ1=adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj -OBJ2=infcodes.obj inflate.obj inftrees.obj infutil.obj inffast.obj -OBJ3=trees.obj uncompr.obj zutil.obj -pOBJ1=+adler32.obj+compress.obj+crc32.obj+deflate.obj+gzio.obj+infblock.obj -pOBJ2=+infcodes.obj+inflate.obj+inftrees.obj+infutil.obj+inffast.obj -pOBJ3=+trees.obj+uncompr.obj+zutil.obj - -all: $(ZLIB) - -$(ZLIB): $(OBJ1) $(OBJ2) $(OBJ3) - @if exist $@ del $@ - $(LIB) @&&| -$@ $(LIBFLAGS) & -$(pOBJ1) & -$(pOBJ2) & -$(pOBJ3) -| - -# End of makefile for zlib32bd.lib diff --git a/zlib/contrib/delphi/zlibdef.pas b/zlib/contrib/delphi/zlibdef.pas deleted file mode 100644 index 4f96b7d2c50..00000000000 --- a/zlib/contrib/delphi/zlibdef.pas +++ /dev/null @@ -1,169 +0,0 @@ -unit zlibdef; - -interface - -uses - Windows; - -const - ZLIB_VERSION = '1.1.3'; - -type - voidpf = Pointer; - int = Integer; - uInt = Cardinal; - pBytef = PChar; - uLong = Cardinal; - - alloc_func = function(opaque: voidpf; items, size: uInt): voidpf; - stdcall; - free_func = procedure(opaque, address: voidpf); - stdcall; - - internal_state = Pointer; - - z_streamp = ^z_stream; - z_stream = packed record - next_in: pBytef; // next input byte - avail_in: uInt; // number of bytes available at next_in - total_in: uLong; // total nb of input bytes read so far - - next_out: pBytef; // next output byte should be put there - avail_out: uInt; // remaining free space at next_out - total_out: uLong; // total nb of bytes output so far - - msg: PChar; // last error message, NULL if no error - state: internal_state; // not visible by applications - - zalloc: alloc_func; // used to allocate the internal state - zfree: free_func; // used to free the internal state - opaque: voidpf; // private data object passed to zalloc and zfree - - data_type: int; // best guess about the data type: ascii or binary - adler: uLong; // adler32 value of the uncompressed data - reserved: uLong; // reserved for future use - end; - -const - Z_NO_FLUSH = 0; - Z_SYNC_FLUSH = 2; - Z_FULL_FLUSH = 3; - Z_FINISH = 4; - - Z_OK = 0; - Z_STREAM_END = 1; - - Z_NO_COMPRESSION = 0; - Z_BEST_SPEED = 1; - Z_BEST_COMPRESSION = 9; - Z_DEFAULT_COMPRESSION = -1; - - Z_FILTERED = 1; - Z_HUFFMAN_ONLY = 2; - Z_DEFAULT_STRATEGY = 0; - - Z_BINARY = 0; - Z_ASCII = 1; - Z_UNKNOWN = 2; - - Z_DEFLATED = 8; - - MAX_MEM_LEVEL = 9; - -function adler32(adler: uLong; const buf: pBytef; len: uInt): uLong; - stdcall; -function crc32(crc: uLong; const buf: pBytef; len: uInt): uLong; - stdcall; -function deflate(strm: z_streamp; flush: int): int; - stdcall; -function deflateCopy(dest, source: z_streamp): int; - stdcall; -function deflateEnd(strm: z_streamp): int; - stdcall; -function deflateInit2_(strm: z_streamp; level, method, - windowBits, memLevel, strategy: int; - const version: PChar; stream_size: int): int; - stdcall; -function deflateInit_(strm: z_streamp; level: int; - const version: PChar; stream_size: int): int; - stdcall; -function deflateParams(strm: z_streamp; level, strategy: int): int; - stdcall; -function deflateReset(strm: z_streamp): int; - stdcall; -function deflateSetDictionary(strm: z_streamp; - const dictionary: pBytef; - dictLength: uInt): int; - stdcall; -function inflate(strm: z_streamp; flush: int): int; - stdcall; -function inflateEnd(strm: z_streamp): int; - stdcall; -function inflateInit2_(strm: z_streamp; windowBits: int; - const version: PChar; stream_size: int): int; - stdcall; -function inflateInit_(strm: z_streamp; const version: PChar; - stream_size: int): int; - stdcall; -function inflateReset(strm: z_streamp): int; - stdcall; -function inflateSetDictionary(strm: z_streamp; - const dictionary: pBytef; - dictLength: uInt): int; - stdcall; -function inflateSync(strm: z_streamp): int; - stdcall; - -function deflateInit(strm: z_streamp; level: int): int; -function deflateInit2(strm: z_streamp; level, method, windowBits, - memLevel, strategy: int): int; -function inflateInit(strm: z_streamp): int; -function inflateInit2(strm: z_streamp; windowBits: int): int; - -implementation - -function deflateInit(strm: z_streamp; level: int): int; -begin - Result := deflateInit_(strm, level, ZLIB_VERSION, sizeof(z_stream)); -end; - -function deflateInit2(strm: z_streamp; level, method, windowBits, - memLevel, strategy: int): int; -begin - Result := deflateInit2_(strm, level, method, windowBits, memLevel, - strategy, ZLIB_VERSION, sizeof(z_stream)); -end; - -function inflateInit(strm: z_streamp): int; -begin - Result := inflateInit_(strm, ZLIB_VERSION, sizeof(z_stream)); -end; - -function inflateInit2(strm: z_streamp; windowBits: int): int; -begin - Result := inflateInit2_(strm, windowBits, ZLIB_VERSION, - sizeof(z_stream)); -end; - -const - zlibDLL = 'png32bd.dll'; - -function adler32; external zlibDLL; -function crc32; external zlibDLL; -function deflate; external zlibDLL; -function deflateCopy; external zlibDLL; -function deflateEnd; external zlibDLL; -function deflateInit2_; external zlibDLL; -function deflateInit_; external zlibDLL; -function deflateParams; external zlibDLL; -function deflateReset; external zlibDLL; -function deflateSetDictionary; external zlibDLL; -function inflate; external zlibDLL; -function inflateEnd; external zlibDLL; -function inflateInit2_; external zlibDLL; -function inflateInit_; external zlibDLL; -function inflateReset; external zlibDLL; -function inflateSetDictionary; external zlibDLL; -function inflateSync; external zlibDLL; - -end. diff --git a/zlib/contrib/delphi2/d_zlib.bpr b/zlib/contrib/delphi2/d_zlib.bpr deleted file mode 100644 index 78bb254088a..00000000000 --- a/zlib/contrib/delphi2/d_zlib.bpr +++ /dev/null @@ -1,224 +0,0 @@ -# --------------------------------------------------------------------------- -!if !$d(BCB) -BCB = $(MAKEDIR)\.. -!endif - -# --------------------------------------------------------------------------- -# IDE SECTION -# --------------------------------------------------------------------------- -# The following section of the project makefile is managed by the BCB IDE. -# It is recommended to use the IDE to change any of the values in this -# section. -# --------------------------------------------------------------------------- - -VERSION = BCB.03 -# --------------------------------------------------------------------------- -PROJECT = d_zlib.lib -OBJFILES = d_zlib.obj adler32.obj deflate.obj infblock.obj infcodes.obj inffast.obj \ - inflate.obj inftrees.obj infutil.obj trees.obj -RESFILES = -RESDEPEN = $(RESFILES) -LIBFILES = -LIBRARIES = VCL35.lib -SPARELIBS = VCL35.lib -DEFFILE = -PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \ - dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \ - NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi -# --------------------------------------------------------------------------- -PATHCPP = .; -PATHASM = .; -PATHPAS = .; -PATHRC = .; -DEBUGLIBPATH = $(BCB)\lib\debug -RELEASELIBPATH = $(BCB)\lib\release -# --------------------------------------------------------------------------- -CFLAG1 = -O2 -Ve -d -k- -vi -CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm -CFLAG3 = -ff -pr -5 -PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M -RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl -AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn -LFLAGS = -IFLAGS = -g -Gn -# --------------------------------------------------------------------------- -ALLOBJ = c0w32.obj $(OBJFILES) -ALLRES = $(RESFILES) -ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib -# --------------------------------------------------------------------------- -!!ifdef IDEOPTIONS - -[Version Info] -IncludeVerInfo=0 -AutoIncBuild=0 -MajorVer=1 -MinorVer=0 -Release=0 -Build=0 -Debug=0 -PreRelease=0 -Special=0 -Private=0 -DLL=0 -Locale=1040 -CodePage=1252 - -[Version Info Keys] -CompanyName= -FileDescription= -FileVersion=1.0.0.0 -InternalName= -LegalCopyright= -LegalTrademarks= -OriginalFilename= -ProductName= -ProductVersion=1.0.0.0 -Comments= - -[HistoryLists\hlIncludePath] -Count=2 -Item0=$(BCB)\include -Item1=$(BCB)\include;$(BCB)\include\vcl - -[HistoryLists\hlLibraryPath] -Count=1 -Item0=$(BCB)\lib\obj;$(BCB)\lib - -[HistoryLists\hlDebugSourcePath] -Count=1 -Item0=$(BCB)\source\vcl - -[Debugging] -DebugSourceDirs= - -[Parameters] -RunParams= -HostApplication= - -!endif - - --------------------------------------------------------------------------- -# MAKE SECTION -# --------------------------------------------------------------------------- -# This section of the project file is not used by the BCB IDE. It is for -# the benefit of building from the command-line using the MAKE utility. -# --------------------------------------------------------------------------- - -.autodepend -# --------------------------------------------------------------------------- -!if !$d(BCC32) -BCC32 = bcc32 -!endif - -!if !$d(DCC32) -DCC32 = dcc32 -!endif - -!if !$d(TASM32) -TASM32 = tasm32 -!endif - -!if !$d(LINKER) -LINKER = TLib -!endif - -!if !$d(BRCC32) -BRCC32 = brcc32 -!endif -# --------------------------------------------------------------------------- -!if $d(PATHCPP) -.PATH.CPP = $(PATHCPP) -.PATH.C = $(PATHCPP) -!endif - -!if $d(PATHPAS) -.PATH.PAS = $(PATHPAS) -!endif - -!if $d(PATHASM) -.PATH.ASM = $(PATHASM) -!endif - -!if $d(PATHRC) -.PATH.RC = $(PATHRC) -!endif -# --------------------------------------------------------------------------- -!ifdef IDEOPTIONS - -[Version Info] -IncludeVerInfo=0 -AutoIncBuild=0 -MajorVer=1 -MinorVer=0 -Release=0 -Build=0 -Debug=0 -PreRelease=0 -Special=0 -Private=0 -DLL=0 -Locale=1040 -CodePage=1252 - -[Version Info Keys] -CompanyName= -FileDescription= -FileVersion=1.0.0.0 -InternalName= -LegalCopyright= -LegalTrademarks= -OriginalFilename= -ProductName= -ProductVersion=1.0.0.0 -Comments= - -[HistoryLists\hlIncludePath] -Count=2 -Item0=$(BCB)\include;$(BCB)\include\vcl -Item1=$(BCB)\include - -[HistoryLists\hlLibraryPath] -Count=1 -Item0=$(BCB)\lib\obj;$(BCB)\lib - -[HistoryLists\hlDebugSourcePath] -Count=1 -Item0=$(BCB)\source\vcl - -[Debugging] -DebugSourceDirs= - -[Parameters] -RunParams= -HostApplication= - -!endif - -$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE) - $(BCB)\BIN\$(LINKER) @&&! - $(LFLAGS) $(IFLAGS) + - $(ALLOBJ), + - $(PROJECT),, + - $(ALLLIB), + - $(DEFFILE), + - $(ALLRES) -! -# --------------------------------------------------------------------------- -.pas.hpp: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.pas.obj: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.cpp.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.c.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.asm.obj: - $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@ - -.rc.res: - $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $< -# --------------------------------------------------------------------------- diff --git a/zlib/contrib/delphi2/d_zlib.cpp b/zlib/contrib/delphi2/d_zlib.cpp deleted file mode 100644 index f5dea59b762..00000000000 --- a/zlib/contrib/delphi2/d_zlib.cpp +++ /dev/null @@ -1,17 +0,0 @@ -#include <condefs.h> -#pragma hdrstop -//--------------------------------------------------------------------------- -USEUNIT("adler32.c"); -USEUNIT("deflate.c"); -USEUNIT("infblock.c"); -USEUNIT("infcodes.c"); -USEUNIT("inffast.c"); -USEUNIT("inflate.c"); -USEUNIT("inftrees.c"); -USEUNIT("infutil.c"); -USEUNIT("trees.c"); -//--------------------------------------------------------------------------- -#define Library - -// To add a file to the library use the Project menu 'Add to Project'. - diff --git a/zlib/contrib/delphi2/readme.txt b/zlib/contrib/delphi2/readme.txt deleted file mode 100644 index cbd31620d87..00000000000 --- a/zlib/contrib/delphi2/readme.txt +++ /dev/null @@ -1,17 +0,0 @@ -These are files used to compile zlib under Borland C++ Builder 3. - -zlib.bpg is the main project group that can be loaded in the BCB IDE and -loads all other *.bpr projects - -zlib.bpr is a project used to create a static zlib.lib library with C calling -convention for functions. - -zlib32.bpr creates a zlib32.dll dynamic link library with Windows standard -calling convention. - -d_zlib.bpr creates a set of .obj files with register calling convention. -These files are used by zlib.pas to create a Delphi unit containing zlib. -The d_zlib.lib file generated isn't useful and can be deleted. - -zlib.cpp, zlib32.cpp and d_zlib.cpp are used by the above projects. - diff --git a/zlib/contrib/delphi2/zlib.bpg b/zlib/contrib/delphi2/zlib.bpg deleted file mode 100644 index b6c9acdf8c9..00000000000 --- a/zlib/contrib/delphi2/zlib.bpg +++ /dev/null @@ -1,26 +0,0 @@ -#------------------------------------------------------------------------------ -VERSION = BWS.01 -#------------------------------------------------------------------------------ -!ifndef ROOT -ROOT = $(MAKEDIR)\.. -!endif -#------------------------------------------------------------------------------ -MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$** -DCC = $(ROOT)\bin\dcc32.exe $** -BRCC = $(ROOT)\bin\brcc32.exe $** -#------------------------------------------------------------------------------ -PROJECTS = zlib zlib32 d_zlib -#------------------------------------------------------------------------------ -default: $(PROJECTS) -#------------------------------------------------------------------------------ - -zlib: zlib.bpr - $(MAKE) - -zlib32: zlib32.bpr - $(MAKE) - -d_zlib: d_zlib.bpr - $(MAKE) - - diff --git a/zlib/contrib/delphi2/zlib.bpr b/zlib/contrib/delphi2/zlib.bpr deleted file mode 100644 index cf3945b2523..00000000000 --- a/zlib/contrib/delphi2/zlib.bpr +++ /dev/null @@ -1,225 +0,0 @@ -# --------------------------------------------------------------------------- -!if !$d(BCB) -BCB = $(MAKEDIR)\.. -!endif - -# --------------------------------------------------------------------------- -# IDE SECTION -# --------------------------------------------------------------------------- -# The following section of the project makefile is managed by the BCB IDE. -# It is recommended to use the IDE to change any of the values in this -# section. -# --------------------------------------------------------------------------- - -VERSION = BCB.03 -# --------------------------------------------------------------------------- -PROJECT = zlib.lib -OBJFILES = zlib.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \ - infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \ - uncompr.obj zutil.obj -RESFILES = -RESDEPEN = $(RESFILES) -LIBFILES = -LIBRARIES = VCL35.lib -SPARELIBS = VCL35.lib -DEFFILE = -PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \ - dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \ - NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi -# --------------------------------------------------------------------------- -PATHCPP = .; -PATHASM = .; -PATHPAS = .; -PATHRC = .; -DEBUGLIBPATH = $(BCB)\lib\debug -RELEASELIBPATH = $(BCB)\lib\release -# --------------------------------------------------------------------------- -CFLAG1 = -O2 -Ve -d -k- -vi -CFLAG2 = -I$(BCB)\include;$(BCB)\include\vcl -H=$(BCB)\lib\vcl35.csm -CFLAG3 = -ff -5 -PFLAGS = -U;$(DEBUGLIBPATH) -I$(BCB)\include;$(BCB)\include\vcl -H -W -$I- -v -JPHN -M -RFLAGS = -i$(BCB)\include;$(BCB)\include\vcl -AFLAGS = /i$(BCB)\include /i$(BCB)\include\vcl /mx /w2 /zn -LFLAGS = -IFLAGS = -g -Gn -# --------------------------------------------------------------------------- -ALLOBJ = c0w32.obj $(OBJFILES) -ALLRES = $(RESFILES) -ALLLIB = $(LIBFILES) $(LIBRARIES) import32.lib cp32mt.lib -# --------------------------------------------------------------------------- -!!ifdef IDEOPTIONS - -[Version Info] -IncludeVerInfo=0 -AutoIncBuild=0 -MajorVer=1 -MinorVer=0 -Release=0 -Build=0 -Debug=0 -PreRelease=0 -Special=0 -Private=0 -DLL=0 -Locale=1040 -CodePage=1252 - -[Version Info Keys] -CompanyName= -FileDescription= -FileVersion=1.0.0.0 -InternalName= -LegalCopyright= -LegalTrademarks= -OriginalFilename= -ProductName= -ProductVersion=1.0.0.0 -Comments= - -[HistoryLists\hlIncludePath] -Count=2 -Item0=$(BCB)\include -Item1=$(BCB)\include;$(BCB)\include\vcl - -[HistoryLists\hlLibraryPath] -Count=1 -Item0=$(BCB)\lib\obj;$(BCB)\lib - -[HistoryLists\hlDebugSourcePath] -Count=1 -Item0=$(BCB)\source\vcl - -[Debugging] -DebugSourceDirs= - -[Parameters] -RunParams= -HostApplication= - -!endif - - --------------------------------------------------------------------------- -# MAKE SECTION -# --------------------------------------------------------------------------- -# This section of the project file is not used by the BCB IDE. It is for -# the benefit of building from the command-line using the MAKE utility. -# --------------------------------------------------------------------------- - -.autodepend -# --------------------------------------------------------------------------- -!if !$d(BCC32) -BCC32 = bcc32 -!endif - -!if !$d(DCC32) -DCC32 = dcc32 -!endif - -!if !$d(TASM32) -TASM32 = tasm32 -!endif - -!if !$d(LINKER) -LINKER = TLib -!endif - -!if !$d(BRCC32) -BRCC32 = brcc32 -!endif -# --------------------------------------------------------------------------- -!if $d(PATHCPP) -.PATH.CPP = $(PATHCPP) -.PATH.C = $(PATHCPP) -!endif - -!if $d(PATHPAS) -.PATH.PAS = $(PATHPAS) -!endif - -!if $d(PATHASM) -.PATH.ASM = $(PATHASM) -!endif - -!if $d(PATHRC) -.PATH.RC = $(PATHRC) -!endif -# --------------------------------------------------------------------------- -!ifdef IDEOPTIONS - -[Version Info] -IncludeVerInfo=0 -AutoIncBuild=0 -MajorVer=1 -MinorVer=0 -Release=0 -Build=0 -Debug=0 -PreRelease=0 -Special=0 -Private=0 -DLL=0 -Locale=1040 -CodePage=1252 - -[Version Info Keys] -CompanyName= -FileDescription= -FileVersion=1.0.0.0 -InternalName= -LegalCopyright= -LegalTrademarks= -OriginalFilename= -ProductName= -ProductVersion=1.0.0.0 -Comments= - -[HistoryLists\hlIncludePath] -Count=2 -Item0=$(BCB)\include;$(BCB)\include\vcl -Item1=$(BCB)\include - -[HistoryLists\hlLibraryPath] -Count=1 -Item0=$(BCB)\lib\obj;$(BCB)\lib - -[HistoryLists\hlDebugSourcePath] -Count=1 -Item0=$(BCB)\source\vcl - -[Debugging] -DebugSourceDirs= - -[Parameters] -RunParams= -HostApplication= - -!endif - -$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE) - $(BCB)\BIN\$(LINKER) @&&! - $(LFLAGS) $(IFLAGS) + - $(ALLOBJ), + - $(PROJECT),, + - $(ALLLIB), + - $(DEFFILE), + - $(ALLRES) -! -# --------------------------------------------------------------------------- -.pas.hpp: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.pas.obj: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.cpp.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.c.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.asm.obj: - $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@ - -.rc.res: - $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $< -# --------------------------------------------------------------------------- diff --git a/zlib/contrib/delphi2/zlib.cpp b/zlib/contrib/delphi2/zlib.cpp deleted file mode 100644 index bf6953ba198..00000000000 --- a/zlib/contrib/delphi2/zlib.cpp +++ /dev/null @@ -1,22 +0,0 @@ -#include <condefs.h> -#pragma hdrstop -//--------------------------------------------------------------------------- -USEUNIT("adler32.c"); -USEUNIT("compress.c"); -USEUNIT("crc32.c"); -USEUNIT("deflate.c"); -USEUNIT("gzio.c"); -USEUNIT("infblock.c"); -USEUNIT("infcodes.c"); -USEUNIT("inffast.c"); -USEUNIT("inflate.c"); -USEUNIT("inftrees.c"); -USEUNIT("infutil.c"); -USEUNIT("trees.c"); -USEUNIT("uncompr.c"); -USEUNIT("zutil.c"); -//--------------------------------------------------------------------------- -#define Library - -// To add a file to the library use the Project menu 'Add to Project'. - diff --git a/zlib/contrib/delphi2/zlib.pas b/zlib/contrib/delphi2/zlib.pas deleted file mode 100644 index 10ae4cae256..00000000000 --- a/zlib/contrib/delphi2/zlib.pas +++ /dev/null @@ -1,534 +0,0 @@ -{*******************************************************} -{ } -{ Delphi Supplemental Components } -{ ZLIB Data Compression Interface Unit } -{ } -{ Copyright (c) 1997 Borland International } -{ } -{*******************************************************} - -{ Modified for zlib 1.1.3 by Davide Moretti <dave@rimini.com } - -unit zlib; - -interface - -uses Sysutils, Classes; - -type - TAlloc = function (AppData: Pointer; Items, Size: Integer): Pointer; - TFree = procedure (AppData, Block: Pointer); - - // Internal structure. Ignore. - TZStreamRec = packed record - next_in: PChar; // next input byte - avail_in: Integer; // number of bytes available at next_in - total_in: Integer; // total nb of input bytes read so far - - next_out: PChar; // next output byte should be put here - avail_out: Integer; // remaining free space at next_out - total_out: Integer; // total nb of bytes output so far - - msg: PChar; // last error message, NULL if no error - internal: Pointer; // not visible by applications - - zalloc: TAlloc; // used to allocate the internal state - zfree: TFree; // used to free the internal state - AppData: Pointer; // private data object passed to zalloc and zfree - - data_type: Integer; // best guess about the data type: ascii or binary - adler: Integer; // adler32 value of the uncompressed data - reserved: Integer; // reserved for future use - end; - - // Abstract ancestor class - TCustomZlibStream = class(TStream) - private - FStrm: TStream; - FStrmPos: Integer; - FOnProgress: TNotifyEvent; - FZRec: TZStreamRec; - FBuffer: array [Word] of Char; - protected - procedure Progress(Sender: TObject); dynamic; - property OnProgress: TNotifyEvent read FOnProgress write FOnProgress; - constructor Create(Strm: TStream); - end; - -{ TCompressionStream compresses data on the fly as data is written to it, and - stores the compressed data to another stream. - - TCompressionStream is write-only and strictly sequential. Reading from the - stream will raise an exception. Using Seek to move the stream pointer - will raise an exception. - - Output data is cached internally, written to the output stream only when - the internal output buffer is full. All pending output data is flushed - when the stream is destroyed. - - The Position property returns the number of uncompressed bytes of - data that have been written to the stream so far. - - CompressionRate returns the on-the-fly percentage by which the original - data has been compressed: (1 - (CompressedBytes / UncompressedBytes)) * 100 - If raw data size = 100 and compressed data size = 25, the CompressionRate - is 75% - - The OnProgress event is called each time the output buffer is filled and - written to the output stream. This is useful for updating a progress - indicator when you are writing a large chunk of data to the compression - stream in a single call.} - - - TCompressionLevel = (clNone, clFastest, clDefault, clMax); - - TCompressionStream = class(TCustomZlibStream) - private - function GetCompressionRate: Single; - public - constructor Create(CompressionLevel: TCompressionLevel; Dest: TStream); - destructor Destroy; override; - function Read(var Buffer; Count: Longint): Longint; override; - function Write(const Buffer; Count: Longint): Longint; override; - function Seek(Offset: Longint; Origin: Word): Longint; override; - property CompressionRate: Single read GetCompressionRate; - property OnProgress; - end; - -{ TDecompressionStream decompresses data on the fly as data is read from it. - - Compressed data comes from a separate source stream. TDecompressionStream - is read-only and unidirectional; you can seek forward in the stream, but not - backwards. The special case of setting the stream position to zero is - allowed. Seeking forward decompresses data until the requested position in - the uncompressed data has been reached. Seeking backwards, seeking relative - to the end of the stream, requesting the size of the stream, and writing to - the stream will raise an exception. - - The Position property returns the number of bytes of uncompressed data that - have been read from the stream so far. - - The OnProgress event is called each time the internal input buffer of - compressed data is exhausted and the next block is read from the input stream. - This is useful for updating a progress indicator when you are reading a - large chunk of data from the decompression stream in a single call.} - - TDecompressionStream = class(TCustomZlibStream) - public - constructor Create(Source: TStream); - destructor Destroy; override; - function Read(var Buffer; Count: Longint): Longint; override; - function Write(const Buffer; Count: Longint): Longint; override; - function Seek(Offset: Longint; Origin: Word): Longint; override; - property OnProgress; - end; - - - -{ CompressBuf compresses data, buffer to buffer, in one call. - In: InBuf = ptr to compressed data - InBytes = number of bytes in InBuf - Out: OutBuf = ptr to newly allocated buffer containing decompressed data - OutBytes = number of bytes in OutBuf } -procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; - out OutBuf: Pointer; out OutBytes: Integer); - - -{ DecompressBuf decompresses data, buffer to buffer, in one call. - In: InBuf = ptr to compressed data - InBytes = number of bytes in InBuf - OutEstimate = zero, or est. size of the decompressed data - Out: OutBuf = ptr to newly allocated buffer containing decompressed data - OutBytes = number of bytes in OutBuf } -procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; - OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); - -const - zlib_version = '1.1.3'; - -type - EZlibError = class(Exception); - ECompressionError = class(EZlibError); - EDecompressionError = class(EZlibError); - -function adler32(adler: Integer; buf: PChar; len: Integer): Integer; - -implementation - -const - Z_NO_FLUSH = 0; - Z_PARTIAL_FLUSH = 1; - Z_SYNC_FLUSH = 2; - Z_FULL_FLUSH = 3; - Z_FINISH = 4; - - Z_OK = 0; - Z_STREAM_END = 1; - Z_NEED_DICT = 2; - Z_ERRNO = (-1); - Z_STREAM_ERROR = (-2); - Z_DATA_ERROR = (-3); - Z_MEM_ERROR = (-4); - Z_BUF_ERROR = (-5); - Z_VERSION_ERROR = (-6); - - Z_NO_COMPRESSION = 0; - Z_BEST_SPEED = 1; - Z_BEST_COMPRESSION = 9; - Z_DEFAULT_COMPRESSION = (-1); - - Z_FILTERED = 1; - Z_HUFFMAN_ONLY = 2; - Z_DEFAULT_STRATEGY = 0; - - Z_BINARY = 0; - Z_ASCII = 1; - Z_UNKNOWN = 2; - - Z_DEFLATED = 8; - - _z_errmsg: array[0..9] of PChar = ( - 'need dictionary', // Z_NEED_DICT (2) - 'stream end', // Z_STREAM_END (1) - '', // Z_OK (0) - 'file error', // Z_ERRNO (-1) - 'stream error', // Z_STREAM_ERROR (-2) - 'data error', // Z_DATA_ERROR (-3) - 'insufficient memory', // Z_MEM_ERROR (-4) - 'buffer error', // Z_BUF_ERROR (-5) - 'incompatible version', // Z_VERSION_ERROR (-6) - '' - ); - -{$L deflate.obj} -{$L inflate.obj} -{$L inftrees.obj} -{$L trees.obj} -{$L adler32.obj} -{$L infblock.obj} -{$L infcodes.obj} -{$L infutil.obj} -{$L inffast.obj} - -procedure _tr_init; external; -procedure _tr_tally; external; -procedure _tr_flush_block; external; -procedure _tr_align; external; -procedure _tr_stored_block; external; -function adler32; external; -procedure inflate_blocks_new; external; -procedure inflate_blocks; external; -procedure inflate_blocks_reset; external; -procedure inflate_blocks_free; external; -procedure inflate_set_dictionary; external; -procedure inflate_trees_bits; external; -procedure inflate_trees_dynamic; external; -procedure inflate_trees_fixed; external; -procedure inflate_codes_new; external; -procedure inflate_codes; external; -procedure inflate_codes_free; external; -procedure _inflate_mask; external; -procedure inflate_flush; external; -procedure inflate_fast; external; - -procedure _memset(P: Pointer; B: Byte; count: Integer);cdecl; -begin - FillChar(P^, count, B); -end; - -procedure _memcpy(dest, source: Pointer; count: Integer);cdecl; -begin - Move(source^, dest^, count); -end; - - - -// deflate compresses data -function deflateInit_(var strm: TZStreamRec; level: Integer; version: PChar; - recsize: Integer): Integer; external; -function deflate(var strm: TZStreamRec; flush: Integer): Integer; external; -function deflateEnd(var strm: TZStreamRec): Integer; external; - -// inflate decompresses data -function inflateInit_(var strm: TZStreamRec; version: PChar; - recsize: Integer): Integer; external; -function inflate(var strm: TZStreamRec; flush: Integer): Integer; external; -function inflateEnd(var strm: TZStreamRec): Integer; external; -function inflateReset(var strm: TZStreamRec): Integer; external; - - -function zcalloc(AppData: Pointer; Items, Size: Integer): Pointer; -begin - GetMem(Result, Items*Size); -end; - -procedure zcfree(AppData, Block: Pointer); -begin - FreeMem(Block); -end; - -function zlibCheck(code: Integer): Integer; -begin - Result := code; - if code < 0 then - raise EZlibError.Create('error'); //!! -end; - -function CCheck(code: Integer): Integer; -begin - Result := code; - if code < 0 then - raise ECompressionError.Create('error'); //!! -end; - -function DCheck(code: Integer): Integer; -begin - Result := code; - if code < 0 then - raise EDecompressionError.Create('error'); //!! -end; - -procedure CompressBuf(const InBuf: Pointer; InBytes: Integer; - out OutBuf: Pointer; out OutBytes: Integer); -var - strm: TZStreamRec; - P: Pointer; -begin - FillChar(strm, sizeof(strm), 0); - OutBytes := ((InBytes + (InBytes div 10) + 12) + 255) and not 255; - GetMem(OutBuf, OutBytes); - try - strm.next_in := InBuf; - strm.avail_in := InBytes; - strm.next_out := OutBuf; - strm.avail_out := OutBytes; - CCheck(deflateInit_(strm, Z_BEST_COMPRESSION, zlib_version, sizeof(strm))); - try - while CCheck(deflate(strm, Z_FINISH)) <> Z_STREAM_END do - begin - P := OutBuf; - Inc(OutBytes, 256); - ReallocMem(OutBuf, OutBytes); - strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); - strm.avail_out := 256; - end; - finally - CCheck(deflateEnd(strm)); - end; - ReallocMem(OutBuf, strm.total_out); - OutBytes := strm.total_out; - except - FreeMem(OutBuf); - raise - end; -end; - - -procedure DecompressBuf(const InBuf: Pointer; InBytes: Integer; - OutEstimate: Integer; out OutBuf: Pointer; out OutBytes: Integer); -var - strm: TZStreamRec; - P: Pointer; - BufInc: Integer; -begin - FillChar(strm, sizeof(strm), 0); - BufInc := (InBytes + 255) and not 255; - if OutEstimate = 0 then - OutBytes := BufInc - else - OutBytes := OutEstimate; - GetMem(OutBuf, OutBytes); - try - strm.next_in := InBuf; - strm.avail_in := InBytes; - strm.next_out := OutBuf; - strm.avail_out := OutBytes; - DCheck(inflateInit_(strm, zlib_version, sizeof(strm))); - try - while DCheck(inflate(strm, Z_FINISH)) <> Z_STREAM_END do - begin - P := OutBuf; - Inc(OutBytes, BufInc); - ReallocMem(OutBuf, OutBytes); - strm.next_out := PChar(Integer(OutBuf) + (Integer(strm.next_out) - Integer(P))); - strm.avail_out := BufInc; - end; - finally - DCheck(inflateEnd(strm)); - end; - ReallocMem(OutBuf, strm.total_out); - OutBytes := strm.total_out; - except - FreeMem(OutBuf); - raise - end; -end; - - -// TCustomZlibStream - -constructor TCustomZLibStream.Create(Strm: TStream); -begin - inherited Create; - FStrm := Strm; - FStrmPos := Strm.Position; -end; - -procedure TCustomZLibStream.Progress(Sender: TObject); -begin - if Assigned(FOnProgress) then FOnProgress(Sender); -end; - - -// TCompressionStream - -constructor TCompressionStream.Create(CompressionLevel: TCompressionLevel; - Dest: TStream); -const - Levels: array [TCompressionLevel] of ShortInt = - (Z_NO_COMPRESSION, Z_BEST_SPEED, Z_DEFAULT_COMPRESSION, Z_BEST_COMPRESSION); -begin - inherited Create(Dest); - FZRec.next_out := FBuffer; - FZRec.avail_out := sizeof(FBuffer); - CCheck(deflateInit_(FZRec, Levels[CompressionLevel], zlib_version, sizeof(FZRec))); -end; - -destructor TCompressionStream.Destroy; -begin - FZRec.next_in := nil; - FZRec.avail_in := 0; - try - if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; - while (CCheck(deflate(FZRec, Z_FINISH)) <> Z_STREAM_END) - and (FZRec.avail_out = 0) do - begin - FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); - FZRec.next_out := FBuffer; - FZRec.avail_out := sizeof(FBuffer); - end; - if FZRec.avail_out < sizeof(FBuffer) then - FStrm.WriteBuffer(FBuffer, sizeof(FBuffer) - FZRec.avail_out); - finally - deflateEnd(FZRec); - end; - inherited Destroy; -end; - -function TCompressionStream.Read(var Buffer; Count: Longint): Longint; -begin - raise ECompressionError.Create('Invalid stream operation'); -end; - -function TCompressionStream.Write(const Buffer; Count: Longint): Longint; -begin - FZRec.next_in := @Buffer; - FZRec.avail_in := Count; - if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; - while (FZRec.avail_in > 0) do - begin - CCheck(deflate(FZRec, 0)); - if FZRec.avail_out = 0 then - begin - FStrm.WriteBuffer(FBuffer, sizeof(FBuffer)); - FZRec.next_out := FBuffer; - FZRec.avail_out := sizeof(FBuffer); - FStrmPos := FStrm.Position; - Progress(Self); - end; - end; - Result := Count; -end; - -function TCompressionStream.Seek(Offset: Longint; Origin: Word): Longint; -begin - if (Offset = 0) and (Origin = soFromCurrent) then - Result := FZRec.total_in - else - raise ECompressionError.Create('Invalid stream operation'); -end; - -function TCompressionStream.GetCompressionRate: Single; -begin - if FZRec.total_in = 0 then - Result := 0 - else - Result := (1.0 - (FZRec.total_out / FZRec.total_in)) * 100.0; -end; - - -// TDecompressionStream - -constructor TDecompressionStream.Create(Source: TStream); -begin - inherited Create(Source); - FZRec.next_in := FBuffer; - FZRec.avail_in := 0; - DCheck(inflateInit_(FZRec, zlib_version, sizeof(FZRec))); -end; - -destructor TDecompressionStream.Destroy; -begin - inflateEnd(FZRec); - inherited Destroy; -end; - -function TDecompressionStream.Read(var Buffer; Count: Longint): Longint; -begin - FZRec.next_out := @Buffer; - FZRec.avail_out := Count; - if FStrm.Position <> FStrmPos then FStrm.Position := FStrmPos; - while (FZRec.avail_out > 0) do - begin - if FZRec.avail_in = 0 then - begin - FZRec.avail_in := FStrm.Read(FBuffer, sizeof(FBuffer)); - if FZRec.avail_in = 0 then - begin - Result := Count - FZRec.avail_out; - Exit; - end; - FZRec.next_in := FBuffer; - FStrmPos := FStrm.Position; - Progress(Self); - end; - DCheck(inflate(FZRec, 0)); - end; - Result := Count; -end; - -function TDecompressionStream.Write(const Buffer; Count: Longint): Longint; -begin - raise EDecompressionError.Create('Invalid stream operation'); -end; - -function TDecompressionStream.Seek(Offset: Longint; Origin: Word): Longint; -var - I: Integer; - Buf: array [0..4095] of Char; -begin - if (Offset = 0) and (Origin = soFromBeginning) then - begin - DCheck(inflateReset(FZRec)); - FZRec.next_in := FBuffer; - FZRec.avail_in := 0; - FStrm.Position := 0; - FStrmPos := 0; - end - else if ( (Offset >= 0) and (Origin = soFromCurrent)) or - ( ((Offset - FZRec.total_out) > 0) and (Origin = soFromBeginning)) then - begin - if Origin = soFromBeginning then Dec(Offset, FZRec.total_out); - if Offset > 0 then - begin - for I := 1 to Offset div sizeof(Buf) do - ReadBuffer(Buf, sizeof(Buf)); - ReadBuffer(Buf, Offset mod sizeof(Buf)); - end; - end - else - raise EDecompressionError.Create('Invalid stream operation'); - Result := FZRec.total_out; -end; - -end. diff --git a/zlib/contrib/delphi2/zlib32.bpr b/zlib/contrib/delphi2/zlib32.bpr deleted file mode 100644 index cabcec44947..00000000000 --- a/zlib/contrib/delphi2/zlib32.bpr +++ /dev/null @@ -1,174 +0,0 @@ -# --------------------------------------------------------------------------- -!if !$d(BCB) -BCB = $(MAKEDIR)\.. -!endif - -# --------------------------------------------------------------------------- -# IDE SECTION -# --------------------------------------------------------------------------- -# The following section of the project makefile is managed by the BCB IDE. -# It is recommended to use the IDE to change any of the values in this -# section. -# --------------------------------------------------------------------------- - -VERSION = BCB.03 -# --------------------------------------------------------------------------- -PROJECT = zlib32.dll -OBJFILES = zlib32.obj adler32.obj compress.obj crc32.obj deflate.obj gzio.obj infblock.obj \ - infcodes.obj inffast.obj inflate.obj inftrees.obj infutil.obj trees.obj \ - uncompr.obj zutil.obj -RESFILES = -RESDEPEN = $(RESFILES) -LIBFILES = -LIBRARIES = -SPARELIBS = -DEFFILE = -PACKAGES = VCLX35.bpi VCL35.bpi VCLDB35.bpi VCLDBX35.bpi ibsmp35.bpi bcbsmp35.bpi \ - dclocx35.bpi QRPT35.bpi TEEUI35.bpi TEEDB35.bpi TEE35.bpi DSS35.bpi \ - NMFAST35.bpi INETDB35.bpi INET35.bpi VCLMID35.bpi -# --------------------------------------------------------------------------- -PATHCPP = .; -PATHASM = .; -PATHPAS = .; -PATHRC = .; -DEBUGLIBPATH = $(BCB)\lib\debug -RELEASELIBPATH = $(BCB)\lib\release -# --------------------------------------------------------------------------- -CFLAG1 = -WD -O2 -Ve -d -k- -vi -c -tWD -CFLAG2 = -D_NO_VCL;ZLIB_DLL -I$(BCB)\include -CFLAG3 = -ff -5 -PFLAGS = -D_NO_VCL;ZLIB_DLL -U$(BCB)\lib;$(RELEASELIBPATH) -I$(BCB)\include -$I- -v \ - -JPHN -M -RFLAGS = -D_NO_VCL;ZLIB_DLL -i$(BCB)\include -AFLAGS = /i$(BCB)\include /d_NO_VCL /dZLIB_DLL /mx /w2 /zn -LFLAGS = -L$(BCB)\lib;$(RELEASELIBPATH) -aa -Tpd -x -Gi -IFLAGS = -Gn -g -# --------------------------------------------------------------------------- -ALLOBJ = c0d32.obj $(OBJFILES) -ALLRES = $(RESFILES) -ALLLIB = $(LIBFILES) import32.lib cw32mt.lib -# --------------------------------------------------------------------------- -!ifdef IDEOPTIONS - -[Version Info] -IncludeVerInfo=0 -AutoIncBuild=0 -MajorVer=1 -MinorVer=0 -Release=0 -Build=0 -Debug=0 -PreRelease=0 -Special=0 -Private=0 -DLL=1 -Locale=1040 -CodePage=1252 - -[Version Info Keys] -CompanyName= -FileDescription=DLL (GUI) -FileVersion=1.0.0.0 -InternalName= -LegalCopyright= -LegalTrademarks= -OriginalFilename= -ProductName= -ProductVersion=1.0.0.0 -Comments= - -[HistoryLists\hlIncludePath] -Count=1 -Item0=$(BCB)\include - -[HistoryLists\hlLibraryPath] -Count=1 -Item0=$(BCB)\lib - -[HistoryLists\hlConditionals] -Count=1 -Item0=_NO_VCL;ZLIB_DLL - -[Debugging] -DebugSourceDirs= - -[Parameters] -RunParams= -HostApplication= - -!endif - -# --------------------------------------------------------------------------- -# MAKE SECTION -# --------------------------------------------------------------------------- -# This section of the project file is not used by the BCB IDE. It is for -# the benefit of building from the command-line using the MAKE utility. -# --------------------------------------------------------------------------- - -.autodepend -# --------------------------------------------------------------------------- -!if !$d(BCC32) -BCC32 = bcc32 -!endif - -!if !$d(DCC32) -DCC32 = dcc32 -!endif - -!if !$d(TASM32) -TASM32 = tasm32 -!endif - -!if !$d(LINKER) -LINKER = ilink32 -!endif - -!if !$d(BRCC32) -BRCC32 = brcc32 -!endif -# --------------------------------------------------------------------------- -!if $d(PATHCPP) -.PATH.CPP = $(PATHCPP) -.PATH.C = $(PATHCPP) -!endif - -!if $d(PATHPAS) -.PATH.PAS = $(PATHPAS) -!endif - -!if $d(PATHASM) -.PATH.ASM = $(PATHASM) -!endif - -!if $d(PATHRC) -.PATH.RC = $(PATHRC) -!endif -# --------------------------------------------------------------------------- -$(PROJECT): $(OBJFILES) $(RESDEPEN) $(DEFFILE) - $(BCB)\BIN\$(LINKER) @&&! - $(LFLAGS) $(IFLAGS) + - $(ALLOBJ), + - $(PROJECT),, + - $(ALLLIB), + - $(DEFFILE), + - $(ALLRES) -! -# --------------------------------------------------------------------------- -.pas.hpp: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.pas.obj: - $(BCB)\BIN\$(DCC32) $(PFLAGS) {$< } - -.cpp.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.c.obj: - $(BCB)\BIN\$(BCC32) $(CFLAG1) $(CFLAG2) $(CFLAG3) -n$(@D) {$< } - -.asm.obj: - $(BCB)\BIN\$(TASM32) $(AFLAGS) $<, $@ - -.rc.res: - $(BCB)\BIN\$(BRCC32) $(RFLAGS) -fo$@ $< -# --------------------------------------------------------------------------- diff --git a/zlib/contrib/delphi2/zlib32.cpp b/zlib/contrib/delphi2/zlib32.cpp deleted file mode 100644 index 7372f6b985f..00000000000 --- a/zlib/contrib/delphi2/zlib32.cpp +++ /dev/null @@ -1,42 +0,0 @@ - -#include <windows.h> -#pragma hdrstop -#include <condefs.h> - - -//--------------------------------------------------------------------------- -// Important note about DLL memory management in a VCL DLL: -// -// -// -// If your DLL uses VCL and exports any functions that pass VCL String objects -// (or structs/classes containing nested Strings) as parameter or function -// results, you will need to build both your DLL project and any EXE projects -// that use your DLL with the dynamic RTL (the RTL DLL). This will change your -// DLL and its calling EXE's to use BORLNDMM.DLL as their memory manager. In -// these cases, the file BORLNDMM.DLL should be deployed along with your DLL -// and the RTL DLL (CP3240MT.DLL). To avoid the requiring BORLNDMM.DLL in -// these situations, pass string information using "char *" or ShortString -// parameters and then link with the static RTL. -// -//--------------------------------------------------------------------------- -USEUNIT("adler32.c"); -USEUNIT("compress.c"); -USEUNIT("crc32.c"); -USEUNIT("deflate.c"); -USEUNIT("gzio.c"); -USEUNIT("infblock.c"); -USEUNIT("infcodes.c"); -USEUNIT("inffast.c"); -USEUNIT("inflate.c"); -USEUNIT("inftrees.c"); -USEUNIT("infutil.c"); -USEUNIT("trees.c"); -USEUNIT("uncompr.c"); -USEUNIT("zutil.c"); -//--------------------------------------------------------------------------- -#pragma argsused -int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void*) -{ - return 1; -} diff --git a/zlib/contrib/iostream/test.cpp b/zlib/contrib/iostream/test.cpp deleted file mode 100644 index 7d265b3b5c0..00000000000 --- a/zlib/contrib/iostream/test.cpp +++ /dev/null @@ -1,24 +0,0 @@ - -#include "zfstream.h" - -int main() { - - // Construct a stream object with this filebuffer. Anything sent - // to this stream will go to standard out. - gzofstream os( 1, ios::out ); - - // This text is getting compressed and sent to stdout. - // To prove this, run 'test | zcat'. - os << "Hello, Mommy" << endl; - - os << setcompressionlevel( Z_NO_COMPRESSION ); - os << "hello, hello, hi, ho!" << endl; - - setcompressionlevel( os, Z_DEFAULT_COMPRESSION ) - << "I'm compressing again" << endl; - - os.close(); - - return 0; - -} diff --git a/zlib/contrib/iostream/zfstream.cpp b/zlib/contrib/iostream/zfstream.cpp deleted file mode 100644 index a690bbefceb..00000000000 --- a/zlib/contrib/iostream/zfstream.cpp +++ /dev/null @@ -1,329 +0,0 @@ - -#include <memory.h> -#include "zfstream.h" - -gzfilebuf::gzfilebuf() : - file(NULL), - mode(0), - own_file_descriptor(0) -{ } - -gzfilebuf::~gzfilebuf() { - - sync(); - if ( own_file_descriptor ) - close(); - -} - -gzfilebuf *gzfilebuf::open( const char *name, - int io_mode ) { - - if ( is_open() ) - return NULL; - - char char_mode[10]; - char *p; - memset(char_mode,'\0',10); - p = char_mode; - - if ( io_mode & ios::in ) { - mode = ios::in; - *p++ = 'r'; - } else if ( io_mode & ios::app ) { - mode = ios::app; - *p++ = 'a'; - } else { - mode = ios::out; - *p++ = 'w'; - } - - if ( io_mode & ios::binary ) { - mode |= ios::binary; - *p++ = 'b'; - } - - // Hard code the compression level - if ( io_mode & (ios::out|ios::app )) { - *p++ = '9'; - } - - if ( (file = gzopen(name, char_mode)) == NULL ) - return NULL; - - own_file_descriptor = 1; - - return this; - -} - -gzfilebuf *gzfilebuf::attach( int file_descriptor, - int io_mode ) { - - if ( is_open() ) - return NULL; - - char char_mode[10]; - char *p; - memset(char_mode,'\0',10); - p = char_mode; - - if ( io_mode & ios::in ) { - mode = ios::in; - *p++ = 'r'; - } else if ( io_mode & ios::app ) { - mode = ios::app; - *p++ = 'a'; - } else { - mode = ios::out; - *p++ = 'w'; - } - - if ( io_mode & ios::binary ) { - mode |= ios::binary; - *p++ = 'b'; - } - - // Hard code the compression level - if ( io_mode & (ios::out|ios::app )) { - *p++ = '9'; - } - - if ( (file = gzdopen(file_descriptor, char_mode)) == NULL ) - return NULL; - - own_file_descriptor = 0; - - return this; - -} - -gzfilebuf *gzfilebuf::close() { - - if ( is_open() ) { - - sync(); - gzclose( file ); - file = NULL; - - } - - return this; - -} - -int gzfilebuf::setcompressionlevel( short comp_level ) { - - return gzsetparams(file, comp_level, -2); - -} - -int gzfilebuf::setcompressionstrategy( short comp_strategy ) { - - return gzsetparams(file, -2, comp_strategy); - -} - - -streampos gzfilebuf::seekoff( streamoff off, ios::seek_dir dir, int which ) { - - return streampos(EOF); - -} - -int gzfilebuf::underflow() { - - // If the file hasn't been opened for reading, error. - if ( !is_open() || !(mode & ios::in) ) - return EOF; - - // if a buffer doesn't exists, allocate one. - if ( !base() ) { - - if ( (allocate()) == EOF ) - return EOF; - setp(0,0); - - } else { - - if ( in_avail() ) - return (unsigned char) *gptr(); - - if ( out_waiting() ) { - if ( flushbuf() == EOF ) - return EOF; - } - - } - - // Attempt to fill the buffer. - - int result = fillbuf(); - if ( result == EOF ) { - // disable get area - setg(0,0,0); - return EOF; - } - - return (unsigned char) *gptr(); - -} - -int gzfilebuf::overflow( int c ) { - - if ( !is_open() || !(mode & ios::out) ) - return EOF; - - if ( !base() ) { - if ( allocate() == EOF ) - return EOF; - setg(0,0,0); - } else { - if (in_avail()) { - return EOF; - } - if (out_waiting()) { - if (flushbuf() == EOF) - return EOF; - } - } - - int bl = blen(); - setp( base(), base() + bl); - - if ( c != EOF ) { - - *pptr() = c; - pbump(1); - - } - - return 0; - -} - -int gzfilebuf::sync() { - - if ( !is_open() ) - return EOF; - - if ( out_waiting() ) - return flushbuf(); - - return 0; - -} - -int gzfilebuf::flushbuf() { - - int n; - char *q; - - q = pbase(); - n = pptr() - q; - - if ( gzwrite( file, q, n) < n ) - return EOF; - - setp(0,0); - - return 0; - -} - -int gzfilebuf::fillbuf() { - - int required; - char *p; - - p = base(); - - required = blen(); - - int t = gzread( file, p, required ); - - if ( t <= 0) return EOF; - - setg( base(), base(), base()+t); - - return t; - -} - -gzfilestream_common::gzfilestream_common() : - ios( gzfilestream_common::rdbuf() ) -{ } - -gzfilestream_common::~gzfilestream_common() -{ } - -void gzfilestream_common::attach( int fd, int io_mode ) { - - if ( !buffer.attach( fd, io_mode) ) - clear( ios::failbit | ios::badbit ); - else - clear(); - -} - -void gzfilestream_common::open( const char *name, int io_mode ) { - - if ( !buffer.open( name, io_mode ) ) - clear( ios::failbit | ios::badbit ); - else - clear(); - -} - -void gzfilestream_common::close() { - - if ( !buffer.close() ) - clear( ios::failbit | ios::badbit ); - -} - -gzfilebuf *gzfilestream_common::rdbuf() { - - return &buffer; - -} - -gzifstream::gzifstream() : - ios( gzfilestream_common::rdbuf() ) -{ - clear( ios::badbit ); -} - -gzifstream::gzifstream( const char *name, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::open( name, io_mode ); -} - -gzifstream::gzifstream( int fd, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::attach( fd, io_mode ); -} - -gzifstream::~gzifstream() { } - -gzofstream::gzofstream() : - ios( gzfilestream_common::rdbuf() ) -{ - clear( ios::badbit ); -} - -gzofstream::gzofstream( const char *name, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::open( name, io_mode ); -} - -gzofstream::gzofstream( int fd, int io_mode ) : - ios( gzfilestream_common::rdbuf() ) -{ - gzfilestream_common::attach( fd, io_mode ); -} - -gzofstream::~gzofstream() { } diff --git a/zlib/contrib/iostream/zfstream.h b/zlib/contrib/iostream/zfstream.h deleted file mode 100644 index c87fa08e9d1..00000000000 --- a/zlib/contrib/iostream/zfstream.h +++ /dev/null @@ -1,142 +0,0 @@ - -#ifndef _zfstream_h -#define _zfstream_h - -#include <fstream.h> -#include "zlib.h" - -class gzfilebuf : public streambuf { - -public: - - gzfilebuf( ); - virtual ~gzfilebuf(); - - gzfilebuf *open( const char *name, int io_mode ); - gzfilebuf *attach( int file_descriptor, int io_mode ); - gzfilebuf *close(); - - int setcompressionlevel( short comp_level ); - int setcompressionstrategy( short comp_strategy ); - - inline int is_open() const { return (file !=NULL); } - - virtual streampos seekoff( streamoff, ios::seek_dir, int ); - - virtual int sync(); - -protected: - - virtual int underflow(); - virtual int overflow( int = EOF ); - -private: - - gzFile file; - short mode; - short own_file_descriptor; - - int flushbuf(); - int fillbuf(); - -}; - -class gzfilestream_common : virtual public ios { - - friend class gzifstream; - friend class gzofstream; - friend gzofstream &setcompressionlevel( gzofstream &, int ); - friend gzofstream &setcompressionstrategy( gzofstream &, int ); - -public: - virtual ~gzfilestream_common(); - - void attach( int fd, int io_mode ); - void open( const char *name, int io_mode ); - void close(); - -protected: - gzfilestream_common(); - -private: - gzfilebuf *rdbuf(); - - gzfilebuf buffer; - -}; - -class gzifstream : public gzfilestream_common, public istream { - -public: - - gzifstream(); - gzifstream( const char *name, int io_mode = ios::in ); - gzifstream( int fd, int io_mode = ios::in ); - - virtual ~gzifstream(); - -}; - -class gzofstream : public gzfilestream_common, public ostream { - -public: - - gzofstream(); - gzofstream( const char *name, int io_mode = ios::out ); - gzofstream( int fd, int io_mode = ios::out ); - - virtual ~gzofstream(); - -}; - -template<class T> class gzomanip { - friend gzofstream &operator<<(gzofstream &, const gzomanip<T> &); -public: - gzomanip(gzofstream &(*f)(gzofstream &, T), T v) : func(f), val(v) { } -private: - gzofstream &(*func)(gzofstream &, T); - T val; -}; - -template<class T> gzofstream &operator<<(gzofstream &s, - const gzomanip<T> &m) { - return (*m.func)(s, m.val); - -} - -inline gzofstream &setcompressionlevel( gzofstream &s, int l ) { - (s.rdbuf())->setcompressionlevel(l); - return s; -} - -inline gzofstream &setcompressionstrategy( gzofstream &s, int l ) { - (s.rdbuf())->setcompressionstrategy(l); - return s; -} - -inline gzomanip<int> setcompressionlevel(int l) -{ - return gzomanip<int>(&setcompressionlevel,l); -} - -inline gzomanip<int> setcompressionstrategy(int l) -{ - return gzomanip<int>(&setcompressionstrategy,l); -} - -#endif - - - - - - - - - - - - - - - diff --git a/zlib/contrib/iostream2/zstream.h b/zlib/contrib/iostream2/zstream.h deleted file mode 100644 index 43d2332b79b..00000000000 --- a/zlib/contrib/iostream2/zstream.h +++ /dev/null @@ -1,307 +0,0 @@ -/* - * - * Copyright (c) 1997 - * Christian Michelsen Research AS - * Advanced Computing - * Fantoftvegen 38, 5036 BERGEN, Norway - * http://www.cmr.no - * - * Permission to use, copy, modify, distribute and sell this software - * and its documentation for any purpose is hereby granted without fee, - * provided that the above copyright notice appear in all copies and - * that both that copyright notice and this permission notice appear - * in supporting documentation. Christian Michelsen Research AS makes no - * representations about the suitability of this software for any - * purpose. It is provided "as is" without express or implied warranty. - * - */ - -#ifndef ZSTREAM__H -#define ZSTREAM__H - -/* - * zstream.h - C++ interface to the 'zlib' general purpose compression library - * $Id: zstream.h 1.1 1997-06-25 12:00:56+02 tyge Exp tyge $ - */ - -#include <strstream.h> -#include <string.h> -#include <stdio.h> -#include "zlib.h" - -#if defined(_WIN32) -# include <fcntl.h> -# include <io.h> -# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) -#else -# define SET_BINARY_MODE(file) -#endif - -class zstringlen { -public: - zstringlen(class izstream&); - zstringlen(class ozstream&, const char*); - size_t value() const { return val.word; } -private: - struct Val { unsigned char byte; size_t word; } val; -}; - -// ----------------------------- izstream ----------------------------- - -class izstream -{ - public: - izstream() : m_fp(0) {} - izstream(FILE* fp) : m_fp(0) { open(fp); } - izstream(const char* name) : m_fp(0) { open(name); } - ~izstream() { close(); } - - /* Opens a gzip (.gz) file for reading. - * open() can be used to read a file which is not in gzip format; - * in this case read() will directly read from the file without - * decompression. errno can be checked to distinguish two error - * cases (if errno is zero, the zlib error is Z_MEM_ERROR). - */ - void open(const char* name) { - if (m_fp) close(); - m_fp = ::gzopen(name, "rb"); - } - - void open(FILE* fp) { - SET_BINARY_MODE(fp); - if (m_fp) close(); - m_fp = ::gzdopen(fileno(fp), "rb"); - } - - /* Flushes all pending input if necessary, closes the compressed file - * and deallocates all the (de)compression state. The return value is - * the zlib error number (see function error() below). - */ - int close() { - int r = ::gzclose(m_fp); - m_fp = 0; return r; - } - - /* Binary read the given number of bytes from the compressed file. - */ - int read(void* buf, size_t len) { - return ::gzread(m_fp, buf, len); - } - - /* Returns the error message for the last error which occurred on the - * given compressed file. errnum is set to zlib error number. If an - * error occurred in the file system and not in the compression library, - * errnum is set to Z_ERRNO and the application may consult errno - * to get the exact error code. - */ - const char* error(int* errnum) { - return ::gzerror(m_fp, errnum); - } - - gzFile fp() { return m_fp; } - - private: - gzFile m_fp; -}; - -/* - * Binary read the given (array of) object(s) from the compressed file. - * If the input file was not in gzip format, read() copies the objects number - * of bytes into the buffer. - * returns the number of uncompressed bytes actually read - * (0 for end of file, -1 for error). - */ -template <class T, class Items> -inline int read(izstream& zs, T* x, Items items) { - return ::gzread(zs.fp(), x, items*sizeof(T)); -} - -/* - * Binary input with the '>' operator. - */ -template <class T> -inline izstream& operator>(izstream& zs, T& x) { - ::gzread(zs.fp(), &x, sizeof(T)); - return zs; -} - - -inline zstringlen::zstringlen(izstream& zs) { - zs > val.byte; - if (val.byte == 255) zs > val.word; - else val.word = val.byte; -} - -/* - * Read length of string + the string with the '>' operator. - */ -inline izstream& operator>(izstream& zs, char* x) { - zstringlen len(zs); - ::gzread(zs.fp(), x, len.value()); - x[len.value()] = '\0'; - return zs; -} - -inline char* read_string(izstream& zs) { - zstringlen len(zs); - char* x = new char[len.value()+1]; - ::gzread(zs.fp(), x, len.value()); - x[len.value()] = '\0'; - return x; -} - -// ----------------------------- ozstream ----------------------------- - -class ozstream -{ - public: - ozstream() : m_fp(0), m_os(0) { - } - ozstream(FILE* fp, int level = Z_DEFAULT_COMPRESSION) - : m_fp(0), m_os(0) { - open(fp, level); - } - ozstream(const char* name, int level = Z_DEFAULT_COMPRESSION) - : m_fp(0), m_os(0) { - open(name, level); - } - ~ozstream() { - close(); - } - - /* Opens a gzip (.gz) file for writing. - * The compression level parameter should be in 0..9 - * errno can be checked to distinguish two error cases - * (if errno is zero, the zlib error is Z_MEM_ERROR). - */ - void open(const char* name, int level = Z_DEFAULT_COMPRESSION) { - char mode[4] = "wb\0"; - if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; - if (m_fp) close(); - m_fp = ::gzopen(name, mode); - } - - /* open from a FILE pointer. - */ - void open(FILE* fp, int level = Z_DEFAULT_COMPRESSION) { - SET_BINARY_MODE(fp); - char mode[4] = "wb\0"; - if (level != Z_DEFAULT_COMPRESSION) mode[2] = '0'+level; - if (m_fp) close(); - m_fp = ::gzdopen(fileno(fp), mode); - } - - /* Flushes all pending output if necessary, closes the compressed file - * and deallocates all the (de)compression state. The return value is - * the zlib error number (see function error() below). - */ - int close() { - if (m_os) { - ::gzwrite(m_fp, m_os->str(), m_os->pcount()); - delete[] m_os->str(); delete m_os; m_os = 0; - } - int r = ::gzclose(m_fp); m_fp = 0; return r; - } - - /* Binary write the given number of bytes into the compressed file. - */ - int write(const void* buf, size_t len) { - return ::gzwrite(m_fp, (voidp) buf, len); - } - - /* Flushes all pending output into the compressed file. The parameter - * _flush is as in the deflate() function. The return value is the zlib - * error number (see function gzerror below). flush() returns Z_OK if - * the flush_ parameter is Z_FINISH and all output could be flushed. - * flush() should be called only when strictly necessary because it can - * degrade compression. - */ - int flush(int _flush) { - os_flush(); - return ::gzflush(m_fp, _flush); - } - - /* Returns the error message for the last error which occurred on the - * given compressed file. errnum is set to zlib error number. If an - * error occurred in the file system and not in the compression library, - * errnum is set to Z_ERRNO and the application may consult errno - * to get the exact error code. - */ - const char* error(int* errnum) { - return ::gzerror(m_fp, errnum); - } - - gzFile fp() { return m_fp; } - - ostream& os() { - if (m_os == 0) m_os = new ostrstream; - return *m_os; - } - - void os_flush() { - if (m_os && m_os->pcount()>0) { - ostrstream* oss = new ostrstream; - oss->fill(m_os->fill()); - oss->flags(m_os->flags()); - oss->precision(m_os->precision()); - oss->width(m_os->width()); - ::gzwrite(m_fp, m_os->str(), m_os->pcount()); - delete[] m_os->str(); delete m_os; m_os = oss; - } - } - - private: - gzFile m_fp; - ostrstream* m_os; -}; - -/* - * Binary write the given (array of) object(s) into the compressed file. - * returns the number of uncompressed bytes actually written - * (0 in case of error). - */ -template <class T, class Items> -inline int write(ozstream& zs, const T* x, Items items) { - return ::gzwrite(zs.fp(), (voidp) x, items*sizeof(T)); -} - -/* - * Binary output with the '<' operator. - */ -template <class T> -inline ozstream& operator<(ozstream& zs, const T& x) { - ::gzwrite(zs.fp(), (voidp) &x, sizeof(T)); - return zs; -} - -inline zstringlen::zstringlen(ozstream& zs, const char* x) { - val.byte = 255; val.word = ::strlen(x); - if (val.word < 255) zs < (val.byte = val.word); - else zs < val; -} - -/* - * Write length of string + the string with the '<' operator. - */ -inline ozstream& operator<(ozstream& zs, const char* x) { - zstringlen len(zs, x); - ::gzwrite(zs.fp(), (voidp) x, len.value()); - return zs; -} - -#ifdef _MSC_VER -inline ozstream& operator<(ozstream& zs, char* const& x) { - return zs < (const char*) x; -} -#endif - -/* - * Ascii write with the << operator; - */ -template <class T> -inline ostream& operator<<(ozstream& zs, const T& x) { - zs.os_flush(); - return zs.os() << x; -} - -#endif diff --git a/zlib/contrib/iostream2/zstream_test.cpp b/zlib/contrib/iostream2/zstream_test.cpp deleted file mode 100644 index 5bbd56c3ad8..00000000000 --- a/zlib/contrib/iostream2/zstream_test.cpp +++ /dev/null @@ -1,25 +0,0 @@ -#include "zstream.h" -#include <math.h> -#include <stdlib.h> -#include <iomanip.h> - -void main() { - char h[256] = "Hello"; - char* g = "Goodbye"; - ozstream out("temp.gz"); - out < "This works well" < h < g; - out.close(); - - izstream in("temp.gz"); // read it back - char *x = read_string(in), *y = new char[256], z[256]; - in > y > z; - in.close(); - cout << x << endl << y << endl << z << endl; - - out.open("temp.gz"); // try ascii output; zcat temp.gz to see the results - out << setw(50) << setfill('#') << setprecision(20) << x << endl << y << endl << z << endl; - out << z << endl << y << endl << x << endl; - out << 1.1234567890123456789 << endl; - - delete[] x; delete[] y; -} diff --git a/zlib/contrib/minizip/ChangeLogUnzip b/zlib/contrib/minizip/ChangeLogUnzip deleted file mode 100644 index 9987c543cdc..00000000000 --- a/zlib/contrib/minizip/ChangeLogUnzip +++ /dev/null @@ -1,38 +0,0 @@ -Change in 0.15: (19 Mar 98) -- fix memory leak in minizip.c - -Change in 0.14: (10 Mar 98) -- fix bugs in minizip.c sample for zipping big file -- fix problem in month in date handling -- fix bug in unzlocal_GetCurrentFileInfoInternal in unzip.c for - comment handling - -Change in 0.13: (6 Mar 98) -- fix bugs in zip.c -- add real minizip sample - -Change in 0.12: (4 Mar 98) -- add zip.c and zip.h for creates .zip file -- fix change_file_date in miniunz.c for Unix (Jean-loup Gailly) -- fix miniunz.c for file without specific record for directory - -Change in 0.11: (3 Mar 98) -- fix bug in unzGetCurrentFileInfo for get extra field and comment -- enhance miniunz sample, remove the bad unztst.c sample - -Change in 0.10: (2 Mar 98) -- fix bug in unzReadCurrentFile -- rename unzip* to unz* function and structure -- remove Windows-like hungary notation variable name -- modify some structure in unzip.h -- add somes comment in source -- remove unzipGetcCurrentFile function -- replace ZUNZEXPORT by ZEXPORT -- add unzGetLocalExtrafield for get the local extrafield info -- add a new sample, miniunz.c - -Change in 0.4: (25 Feb 98) -- suppress the type unzipFileInZip. - Only on file in the zipfile can be open at the same time -- fix somes typo in code -- added tm_unz structure in unzip_file_info (date/time in readable format) diff --git a/zlib/contrib/minizip/miniunz.c b/zlib/contrib/minizip/miniunz.c deleted file mode 100644 index f3b7832878f..00000000000 --- a/zlib/contrib/minizip/miniunz.c +++ /dev/null @@ -1,508 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <errno.h> -#include <fcntl.h> - -#ifdef unix -# include <unistd.h> -# include <utime.h> -#else -# include <direct.h> -# include <io.h> -#endif - -#include "unzip.h" - -#define CASESENSITIVITY (0) -#define WRITEBUFFERSIZE (8192) - -/* - mini unzip, demo of unzip package - - usage : - Usage : miniunz [-exvlo] file.zip [file_to_extract] - - list the file in the zipfile, and print the content of FILE_ID.ZIP or README.TXT - if it exists -*/ - - -/* change_file_date : change the date/time of a file - filename : the filename of the file where date/time must be modified - dosdate : the new date at the MSDos format (4 bytes) - tmu_date : the SAME new date at the tm_unz format */ -void change_file_date(filename,dosdate,tmu_date) - const char *filename; - uLong dosdate; - tm_unz tmu_date; -{ -#ifdef WIN32 - HANDLE hFile; - FILETIME ftm,ftLocal,ftCreate,ftLastAcc,ftLastWrite; - - hFile = CreateFile(filename,GENERIC_READ | GENERIC_WRITE, - 0,NULL,OPEN_EXISTING,0,NULL); - GetFileTime(hFile,&ftCreate,&ftLastAcc,&ftLastWrite); - DosDateTimeToFileTime((WORD)(dosdate>>16),(WORD)dosdate,&ftLocal); - LocalFileTimeToFileTime(&ftLocal,&ftm); - SetFileTime(hFile,&ftm,&ftLastAcc,&ftm); - CloseHandle(hFile); -#else -#ifdef unix - struct utimbuf ut; - struct tm newdate; - newdate.tm_sec = tmu_date.tm_sec; - newdate.tm_min=tmu_date.tm_min; - newdate.tm_hour=tmu_date.tm_hour; - newdate.tm_mday=tmu_date.tm_mday; - newdate.tm_mon=tmu_date.tm_mon; - if (tmu_date.tm_year > 1900) - newdate.tm_year=tmu_date.tm_year - 1900; - else - newdate.tm_year=tmu_date.tm_year ; - newdate.tm_isdst=-1; - - ut.actime=ut.modtime=mktime(&newdate); - utime(filename,&ut); -#endif -#endif -} - - -/* mymkdir and change_file_date are not 100 % portable - As I don't know well Unix, I wait feedback for the unix portion */ - -int mymkdir(dirname) - const char* dirname; -{ - int ret=0; -#ifdef WIN32 - ret = mkdir(dirname); -#else -#ifdef unix - ret = mkdir (dirname,0775); -#endif -#endif - return ret; -} - -int makedir (newdir) - char *newdir; -{ - char *buffer ; - char *p; - int len = strlen(newdir); - - if (len <= 0) - return 0; - - buffer = (char*)malloc(len+1); - strcpy(buffer,newdir); - - if (buffer[len-1] == '/') { - buffer[len-1] = '\0'; - } - if (mymkdir(buffer) == 0) - { - free(buffer); - return 1; - } - - p = buffer+1; - while (1) - { - char hold; - - while(*p && *p != '\\' && *p != '/') - p++; - hold = *p; - *p = 0; - if ((mymkdir(buffer) == -1) && (errno == ENOENT)) - { - printf("couldn't create directory %s\n",buffer); - free(buffer); - return 0; - } - if (hold == 0) - break; - *p++ = hold; - } - free(buffer); - return 1; -} - -void do_banner() -{ - printf("MiniUnz 0.15, demo of zLib + Unz package written by Gilles Vollant\n"); - printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n"); -} - -void do_help() -{ - printf("Usage : miniunz [-exvlo] file.zip [file_to_extract]\n\n") ; -} - - -int do_list(uf) - unzFile uf; -{ - uLong i; - unz_global_info gi; - int err; - - err = unzGetGlobalInfo (uf,&gi); - if (err!=UNZ_OK) - printf("error %d with zipfile in unzGetGlobalInfo \n",err); - printf(" Length Method Size Ratio Date Time CRC-32 Name\n"); - printf(" ------ ------ ---- ----- ---- ---- ------ ----\n"); - for (i=0;i<gi.number_entry;i++) - { - char filename_inzip[256]; - unz_file_info file_info; - uLong ratio=0; - const char *string_method; - err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); - break; - } - if (file_info.uncompressed_size>0) - ratio = (file_info.compressed_size*100)/file_info.uncompressed_size; - - if (file_info.compression_method==0) - string_method="Stored"; - else - if (file_info.compression_method==Z_DEFLATED) - { - uInt iLevel=(uInt)((file_info.flag & 0x6)/2); - if (iLevel==0) - string_method="Defl:N"; - else if (iLevel==1) - string_method="Defl:X"; - else if ((iLevel==2) || (iLevel==3)) - string_method="Defl:F"; /* 2:fast , 3 : extra fast*/ - } - else - string_method="Unkn. "; - - printf("%7lu %6s %7lu %3lu%% %2.2lu-%2.2lu-%2.2lu %2.2lu:%2.2lu %8.8lx %s\n", - file_info.uncompressed_size,string_method,file_info.compressed_size, - ratio, - (uLong)file_info.tmu_date.tm_mon + 1, - (uLong)file_info.tmu_date.tm_mday, - (uLong)file_info.tmu_date.tm_year % 100, - (uLong)file_info.tmu_date.tm_hour,(uLong)file_info.tmu_date.tm_min, - (uLong)file_info.crc,filename_inzip); - if ((i+1)<gi.number_entry) - { - err = unzGoToNextFile(uf); - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzGoToNextFile\n",err); - break; - } - } - } - - return 0; -} - - -int do_extract_currentfile(uf,popt_extract_without_path,popt_overwrite) - unzFile uf; - const int* popt_extract_without_path; - int* popt_overwrite; -{ - char filename_inzip[256]; - char* filename_withoutpath; - char* p; - int err=UNZ_OK; - FILE *fout=NULL; - void* buf; - uInt size_buf; - - unz_file_info file_info; - uLong ratio=0; - err = unzGetCurrentFileInfo(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0); - - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzGetCurrentFileInfo\n",err); - return err; - } - - size_buf = WRITEBUFFERSIZE; - buf = (void*)malloc(size_buf); - if (buf==NULL) - { - printf("Error allocating memory\n"); - return UNZ_INTERNALERROR; - } - - p = filename_withoutpath = filename_inzip; - while ((*p) != '\0') - { - if (((*p)=='/') || ((*p)=='\\')) - filename_withoutpath = p+1; - p++; - } - - if ((*filename_withoutpath)=='\0') - { - if ((*popt_extract_without_path)==0) - { - printf("creating directory: %s\n",filename_inzip); - mymkdir(filename_inzip); - } - } - else - { - const char* write_filename; - int skip=0; - - if ((*popt_extract_without_path)==0) - write_filename = filename_inzip; - else - write_filename = filename_withoutpath; - - err = unzOpenCurrentFile(uf); - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzOpenCurrentFile\n",err); - } - - if (((*popt_overwrite)==0) && (err==UNZ_OK)) - { - char rep; - FILE* ftestexist; - ftestexist = fopen(write_filename,"rb"); - if (ftestexist!=NULL) - { - fclose(ftestexist); - do - { - char answer[128]; - printf("The file %s exist. Overwrite ? [y]es, [n]o, [A]ll: ",write_filename); - scanf("%1s",answer); - rep = answer[0] ; - if ((rep>='a') && (rep<='z')) - rep -= 0x20; - } - while ((rep!='Y') && (rep!='N') && (rep!='A')); - } - - if (rep == 'N') - skip = 1; - - if (rep == 'A') - *popt_overwrite=1; - } - - if ((skip==0) && (err==UNZ_OK)) - { - fout=fopen(write_filename,"wb"); - - /* some zipfile don't contain directory alone before file */ - if ((fout==NULL) && ((*popt_extract_without_path)==0) && - (filename_withoutpath!=(char*)filename_inzip)) - { - char c=*(filename_withoutpath-1); - *(filename_withoutpath-1)='\0'; - makedir(write_filename); - *(filename_withoutpath-1)=c; - fout=fopen(write_filename,"wb"); - } - - if (fout==NULL) - { - printf("error opening %s\n",write_filename); - } - } - - if (fout!=NULL) - { - printf(" extracting: %s\n",write_filename); - - do - { - err = unzReadCurrentFile(uf,buf,size_buf); - if (err<0) - { - printf("error %d with zipfile in unzReadCurrentFile\n",err); - break; - } - if (err>0) - if (fwrite(buf,err,1,fout)!=1) - { - printf("error in writing extracted file\n"); - err=UNZ_ERRNO; - break; - } - } - while (err>0); - fclose(fout); - if (err==0) - change_file_date(write_filename,file_info.dosDate, - file_info.tmu_date); - } - - if (err==UNZ_OK) - { - err = unzCloseCurrentFile (uf); - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzCloseCurrentFile\n",err); - } - } - else - unzCloseCurrentFile(uf); /* don't lose the error */ - } - - free(buf); - return err; -} - - -int do_extract(uf,opt_extract_without_path,opt_overwrite) - unzFile uf; - int opt_extract_without_path; - int opt_overwrite; -{ - uLong i; - unz_global_info gi; - int err; - FILE* fout=NULL; - - err = unzGetGlobalInfo (uf,&gi); - if (err!=UNZ_OK) - printf("error %d with zipfile in unzGetGlobalInfo \n",err); - - for (i=0;i<gi.number_entry;i++) - { - if (do_extract_currentfile(uf,&opt_extract_without_path, - &opt_overwrite) != UNZ_OK) - break; - - if ((i+1)<gi.number_entry) - { - err = unzGoToNextFile(uf); - if (err!=UNZ_OK) - { - printf("error %d with zipfile in unzGoToNextFile\n",err); - break; - } - } - } - - return 0; -} - -int do_extract_onefile(uf,filename,opt_extract_without_path,opt_overwrite) - unzFile uf; - const char* filename; - int opt_extract_without_path; - int opt_overwrite; -{ - int err = UNZ_OK; - if (unzLocateFile(uf,filename,CASESENSITIVITY)!=UNZ_OK) - { - printf("file %s not found in the zipfile\n",filename); - return 2; - } - - if (do_extract_currentfile(uf,&opt_extract_without_path, - &opt_overwrite) == UNZ_OK) - return 0; - else - return 1; -} - - -int main(argc,argv) - int argc; - char *argv[]; -{ - const char *zipfilename=NULL; - const char *filename_to_extract=NULL; - int i; - int opt_do_list=0; - int opt_do_extract=1; - int opt_do_extract_withoutpath=0; - int opt_overwrite=0; - char filename_try[512]; - unzFile uf=NULL; - - do_banner(); - if (argc==1) - { - do_help(); - exit(0); - } - else - { - for (i=1;i<argc;i++) - { - if ((*argv[i])=='-') - { - const char *p=argv[i]+1; - - while ((*p)!='\0') - { - char c=*(p++);; - if ((c=='l') || (c=='L')) - opt_do_list = 1; - if ((c=='v') || (c=='V')) - opt_do_list = 1; - if ((c=='x') || (c=='X')) - opt_do_extract = 1; - if ((c=='e') || (c=='E')) - opt_do_extract = opt_do_extract_withoutpath = 1; - if ((c=='o') || (c=='O')) - opt_overwrite=1; - } - } - else - { - if (zipfilename == NULL) - zipfilename = argv[i]; - else if (filename_to_extract==NULL) - filename_to_extract = argv[i] ; - } - } - } - - if (zipfilename!=NULL) - { - strcpy(filename_try,zipfilename); - uf = unzOpen(zipfilename); - if (uf==NULL) - { - strcat(filename_try,".zip"); - uf = unzOpen(filename_try); - } - } - - if (uf==NULL) - { - printf("Cannot open %s or %s.zip\n",zipfilename,zipfilename); - exit (1); - } - printf("%s opened\n",filename_try); - - if (opt_do_list==1) - return do_list(uf); - else if (opt_do_extract==1) - { - if (filename_to_extract == NULL) - return do_extract(uf,opt_do_extract_withoutpath,opt_overwrite); - else - return do_extract_onefile(uf,filename_to_extract, - opt_do_extract_withoutpath,opt_overwrite); - } - unzCloseCurrentFile(uf); - - return 0; /* to avoid warning */ -} diff --git a/zlib/contrib/minizip/minizip.c b/zlib/contrib/minizip/minizip.c deleted file mode 100644 index 5e492d209b1..00000000000 --- a/zlib/contrib/minizip/minizip.c +++ /dev/null @@ -1,302 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <errno.h> -#include <fcntl.h> - -#ifdef unix -# include <unistd.h> -# include <utime.h> -# include <sys/types.h> -# include <sys/stat.h> -#else -# include <direct.h> -# include <io.h> -#endif - -#include "zip.h" - - -#define WRITEBUFFERSIZE (16384) -#define MAXFILENAME (256) - -#ifdef WIN32 -uLong filetime(f, tmzip, dt) - char *f; /* name of file to get info on */ - tm_zip *tmzip; /* return value: access, modific. and creation times */ - uLong *dt; /* dostime */ -{ - int ret = 0; - { - FILETIME ftLocal; - HANDLE hFind; - WIN32_FIND_DATA ff32; - - hFind = FindFirstFile(f,&ff32); - if (hFind != INVALID_HANDLE_VALUE) - { - FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal); - FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0); - FindClose(hFind); - ret = 1; - } - } - return ret; -} -#else -#ifdef unix -uLong filetime(f, tmzip, dt) - char *f; /* name of file to get info on */ - tm_zip *tmzip; /* return value: access, modific. and creation times */ - uLong *dt; /* dostime */ -{ - int ret=0; - struct stat s; /* results of stat() */ - struct tm* filedate; - time_t tm_t=0; - - if (strcmp(f,"-")!=0) - { - char name[MAXFILENAME]; - int len = strlen(f); - strcpy(name, f); - if (name[len - 1] == '/') - name[len - 1] = '\0'; - /* not all systems allow stat'ing a file with / appended */ - if (stat(name,&s)==0) - { - tm_t = s.st_mtime; - ret = 1; - } - } - filedate = localtime(&tm_t); - - tmzip->tm_sec = filedate->tm_sec; - tmzip->tm_min = filedate->tm_min; - tmzip->tm_hour = filedate->tm_hour; - tmzip->tm_mday = filedate->tm_mday; - tmzip->tm_mon = filedate->tm_mon ; - tmzip->tm_year = filedate->tm_year; - - return ret; -} -#else -uLong filetime(f, tmzip, dt) - char *f; /* name of file to get info on */ - tm_zip *tmzip; /* return value: access, modific. and creation times */ - uLong *dt; /* dostime */ -{ - return 0; -} -#endif -#endif - - - - -int check_exist_file(filename) - const char* filename; -{ - FILE* ftestexist; - int ret = 1; - ftestexist = fopen(filename,"rb"); - if (ftestexist==NULL) - ret = 0; - else - fclose(ftestexist); - return ret; -} - -void do_banner() -{ - printf("MiniZip 0.15, demo of zLib + Zip package written by Gilles Vollant\n"); - printf("more info at http://wwww.winimage/zLibDll/unzip.htm\n\n"); -} - -void do_help() -{ - printf("Usage : minizip [-o] file.zip [files_to_add]\n\n") ; -} - -int main(argc,argv) - int argc; - char *argv[]; -{ - int i; - int opt_overwrite=0; - int opt_compress_level=Z_DEFAULT_COMPRESSION; - int zipfilenamearg = 0; - char filename_try[MAXFILENAME]; - int zipok; - int err=0; - int size_buf=0; - void* buf=NULL, - - - do_banner(); - if (argc==1) - { - do_help(); - exit(0); - return 0; - } - else - { - for (i=1;i<argc;i++) - { - if ((*argv[i])=='-') - { - const char *p=argv[i]+1; - - while ((*p)!='\0') - { - char c=*(p++);; - if ((c=='o') || (c=='O')) - opt_overwrite = 1; - if ((c>='0') && (c<='9')) - opt_compress_level = c-'0'; - } - } - else - if (zipfilenamearg == 0) - zipfilenamearg = i ; - } - } - - size_buf = WRITEBUFFERSIZE; - buf = (void*)malloc(size_buf); - if (buf==NULL) - { - printf("Error allocating memory\n"); - return ZIP_INTERNALERROR; - } - - if (zipfilenamearg==0) - zipok=0; - else - { - int i,len; - int dot_found=0; - - zipok = 1 ; - strcpy(filename_try,argv[zipfilenamearg]); - len=strlen(filename_try); - for (i=0;i<len;i++) - if (filename_try[i]=='.') - dot_found=1; - - if (dot_found==0) - strcat(filename_try,".zip"); - - if (opt_overwrite==0) - if (check_exist_file(filename_try)!=0) - { - char rep; - do - { - char answer[128]; - printf("The file %s exist. Overwrite ? [y]es, [n]o : ",filename_try); - scanf("%1s",answer); - rep = answer[0] ; - if ((rep>='a') && (rep<='z')) - rep -= 0x20; - } - while ((rep!='Y') && (rep!='N')); - if (rep=='N') - zipok = 0; - } - } - - if (zipok==1) - { - zipFile zf; - int errclose; - zf = zipOpen(filename_try,0); - if (zf == NULL) - { - printf("error opening %s\n",filename_try); - err= ZIP_ERRNO; - } - else - printf("creating %s\n",filename_try); - - for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++) - { - if (((*(argv[i]))!='-') && ((*(argv[i]))!='/')) - { - FILE * fin; - int size_read; - const char* filenameinzip = argv[i]; - zip_fileinfo zi; - - zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour = - zi.tmz_date.tm_mday = zi.tmz_date.tm_min = zi.tmz_date.tm_year = 0; - zi.dosDate = 0; - zi.internal_fa = 0; - zi.external_fa = 0; - filetime(filenameinzip,&zi.tmz_date,&zi.dosDate); - - - err = zipOpenNewFileInZip(zf,filenameinzip,&zi, - NULL,0,NULL,0,NULL /* comment*/, - (opt_compress_level != 0) ? Z_DEFLATED : 0, - opt_compress_level); - - if (err != ZIP_OK) - printf("error in opening %s in zipfile\n",filenameinzip); - else - { - fin = fopen(filenameinzip,"rb"); - if (fin==NULL) - { - err=ZIP_ERRNO; - printf("error in opening %s for reading\n",filenameinzip); - } - } - - if (err == ZIP_OK) - do - { - err = ZIP_OK; - size_read = fread(buf,1,size_buf,fin); - if (size_read < size_buf) - if (feof(fin)==0) - { - printf("error in reading %s\n",filenameinzip); - err = ZIP_ERRNO; - } - - if (size_read>0) - { - err = zipWriteInFileInZip (zf,buf,size_read); - if (err<0) - { - printf("error in writing %s in the zipfile\n", - filenameinzip); - } - - } - } while ((err == ZIP_OK) && (size_read>0)); - - fclose(fin); - if (err<0) - err=ZIP_ERRNO; - else - { - err = zipCloseFileInZip(zf); - if (err!=ZIP_OK) - printf("error in closing %s in the zipfile\n", - filenameinzip); - } - } - } - errclose = zipClose(zf,NULL); - if (errclose != ZIP_OK) - printf("error in closing %s\n",filename_try); - } - - free(buf); - exit(0); - return 0; /* to avoid warning */ -} diff --git a/zlib/contrib/minizip/readme.txt b/zlib/contrib/minizip/readme.txt deleted file mode 100644 index 1fc023c720b..00000000000 --- a/zlib/contrib/minizip/readme.txt +++ /dev/null @@ -1,37 +0,0 @@ - -UnZip 0.15 additionnal library - - - This unzip package allow extract file from .ZIP file, compatible with -PKZip 2.04g, WinZip, InfoZip tools and compatible. - - Multi volume ZipFile (span) are not supported, and old compression used by old -PKZip 1.x are not supported. - -See probdesc.zip from PKWare for specification of .ZIP format. - -What is Unzip - The Zlib library support the deflate compression and the creation of gzip (.gz) -file. Zlib is free and small. - The .Zip format, which can contain several compressed files (.gz can containt -only one file) is a very popular format. This is why I've written a package for reading file compressed in Zipfile. - -Using Unzip package - -You need source of Zlib (get zlib111.zip and read zlib.h). -Get unzlb015.zip and read unzip.h (whith documentation of unzip functions) - -The Unzip package is only two file : unzip.h and unzip.c. But it use the Zlib - files. -unztst.c is a simple sample program, which list file in a zipfile and display - README.TXT or FILE_ID.DIZ (if these files are found). -miniunz.c is a mini unzip program. - -I'm also currenlyt writing a zipping portion (zip.h, zip.c and test with minizip.c) - -Please email me for feedback. -I hope my source is compatible with Unix system, but I need your help for be sure - -Latest revision : Mar 04th, 1998 - -Check http://www.winimage.com/zLibDll/unzip.html for up to date info. diff --git a/zlib/contrib/minizip/unzip.c b/zlib/contrib/minizip/unzip.c deleted file mode 100644 index ff71a474da1..00000000000 --- a/zlib/contrib/minizip/unzip.c +++ /dev/null @@ -1,1294 +0,0 @@ -/* unzip.c -- IO on .zip files using zlib - Version 0.15 beta, Mar 19th, 1998, - - Read unzip.h for more info -*/ - - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "zlib.h" -#include "unzip.h" - -#ifdef STDC -# include <stddef.h> -# include <string.h> -# include <stdlib.h> -#endif -#ifdef NO_ERRNO_H - extern int errno; -#else -# include <errno.h> -#endif - - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - - - -#if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) && \ - !defined(CASESENSITIVITYDEFAULT_NO) -#define CASESENSITIVITYDEFAULT_NO -#endif - - -#ifndef UNZ_BUFSIZE -#define UNZ_BUFSIZE (16384) -#endif - -#ifndef UNZ_MAXFILENAMEINZIP -#define UNZ_MAXFILENAMEINZIP (256) -#endif - -#ifndef ALLOC -# define ALLOC(size) (malloc(size)) -#endif -#ifndef TRYFREE -# define TRYFREE(p) {if (p) free(p);} -#endif - -#define SIZECENTRALDIRITEM (0x2e) -#define SIZEZIPLOCALHEADER (0x1e) - - -/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ - -#ifndef SEEK_CUR -#define SEEK_CUR 1 -#endif - -#ifndef SEEK_END -#define SEEK_END 2 -#endif - -#ifndef SEEK_SET -#define SEEK_SET 0 -#endif - -const char unz_copyright[] = - " unzip 0.15 Copyright 1998 Gilles Vollant "; - -/* unz_file_info_interntal contain internal info about a file in zipfile*/ -typedef struct unz_file_info_internal_s -{ - uLong offset_curfile;/* relative offset of local header 4 bytes */ -} unz_file_info_internal; - - -/* file_in_zip_read_info_s contain internal information about a file in zipfile, - when reading and decompress it */ -typedef struct -{ - char *read_buffer; /* internal buffer for compressed data */ - z_stream stream; /* zLib stream structure for inflate */ - - uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ - uLong stream_initialised; /* flag set if stream structure is initialised*/ - - uLong offset_local_extrafield;/* offset of the local extra field */ - uInt size_local_extrafield;/* size of the local extra field */ - uLong pos_local_extrafield; /* position in the local extra field in read*/ - - uLong crc32; /* crc32 of all data uncompressed */ - uLong crc32_wait; /* crc32 we must obtain after decompress all */ - uLong rest_read_compressed; /* number of byte to be decompressed */ - uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/ - FILE* file; /* io structore of the zipfile */ - uLong compression_method; /* compression method (0==store) */ - uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ -} file_in_zip_read_info_s; - - -/* unz_s contain internal information about the zipfile -*/ -typedef struct -{ - FILE* file; /* io structore of the zipfile */ - unz_global_info gi; /* public global information */ - uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ - uLong num_file; /* number of the current file in the zipfile*/ - uLong pos_in_central_dir; /* pos of the current file in the central dir*/ - uLong current_file_ok; /* flag about the usability of the current file*/ - uLong central_pos; /* position of the beginning of the central dir*/ - - uLong size_central_dir; /* size of the central directory */ - uLong offset_central_dir; /* offset of start of central directory with - respect to the starting disk number */ - - unz_file_info cur_file_info; /* public info about the current file in zip*/ - unz_file_info_internal cur_file_info_internal; /* private info about it*/ - file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current - file if we are decompressing it */ -} unz_s; - - -/* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. -*/ - - -local int unzlocal_getByte(fin,pi) - FILE *fin; - int *pi; -{ - unsigned char c; - int err = fread(&c, 1, 1, fin); - if (err==1) - { - *pi = (int)c; - return UNZ_OK; - } - else - { - if (ferror(fin)) - return UNZ_ERRNO; - else - return UNZ_EOF; - } -} - - -/* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets -*/ -local int unzlocal_getShort (fin,pX) - FILE* fin; - uLong *pX; -{ - uLong x ; - int i; - int err; - - err = unzlocal_getByte(fin,&i); - x = (uLong)i; - - if (err==UNZ_OK) - err = unzlocal_getByte(fin,&i); - x += ((uLong)i)<<8; - - if (err==UNZ_OK) - *pX = x; - else - *pX = 0; - return err; -} - -local int unzlocal_getLong (fin,pX) - FILE* fin; - uLong *pX; -{ - uLong x ; - int i; - int err; - - err = unzlocal_getByte(fin,&i); - x = (uLong)i; - - if (err==UNZ_OK) - err = unzlocal_getByte(fin,&i); - x += ((uLong)i)<<8; - - if (err==UNZ_OK) - err = unzlocal_getByte(fin,&i); - x += ((uLong)i)<<16; - - if (err==UNZ_OK) - err = unzlocal_getByte(fin,&i); - x += ((uLong)i)<<24; - - if (err==UNZ_OK) - *pX = x; - else - *pX = 0; - return err; -} - - -/* My own strcmpi / strcasecmp */ -local int strcmpcasenosensitive_internal (fileName1,fileName2) - const char* fileName1; - const char* fileName2; -{ - for (;;) - { - char c1=*(fileName1++); - char c2=*(fileName2++); - if ((c1>='a') && (c1<='z')) - c1 -= 0x20; - if ((c2>='a') && (c2<='z')) - c2 -= 0x20; - if (c1=='\0') - return ((c2=='\0') ? 0 : -1); - if (c2=='\0') - return 1; - if (c1<c2) - return -1; - if (c1>c2) - return 1; - } -} - - -#ifdef CASESENSITIVITYDEFAULT_NO -#define CASESENSITIVITYDEFAULTVALUE 2 -#else -#define CASESENSITIVITYDEFAULTVALUE 1 -#endif - -#ifndef STRCMPCASENOSENTIVEFUNCTION -#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal -#endif - -/* - Compare two filename (fileName1,fileName2). - If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) - If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi - or strcasecmp) - If iCaseSenisivity = 0, case sensitivity is defaut of your operating system - (like 1 on Unix, 2 on Windows) - -*/ -extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity) - const char* fileName1; - const char* fileName2; - int iCaseSensitivity; -{ - if (iCaseSensitivity==0) - iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; - - if (iCaseSensitivity==1) - return strcmp(fileName1,fileName2); - - return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); -} - -#define BUFREADCOMMENT (0x400) - -/* - Locate the Central directory of a zipfile (at the end, just before - the global comment) -*/ -local uLong unzlocal_SearchCentralDir(fin) - FILE *fin; -{ - unsigned char* buf; - uLong uSizeFile; - uLong uBackRead; - uLong uMaxBack=0xffff; /* maximum size of global comment */ - uLong uPosFound=0; - - if (fseek(fin,0,SEEK_END) != 0) - return 0; - - - uSizeFile = ftell( fin ); - - if (uMaxBack>uSizeFile) - uMaxBack = uSizeFile; - - buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); - if (buf==NULL) - return 0; - - uBackRead = 4; - while (uBackRead<uMaxBack) - { - uLong uReadSize,uReadPos ; - int i; - if (uBackRead+BUFREADCOMMENT>uMaxBack) - uBackRead = uMaxBack; - else - uBackRead+=BUFREADCOMMENT; - uReadPos = uSizeFile-uBackRead ; - - uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? - (BUFREADCOMMENT+4) : (uSizeFile-uReadPos); - if (fseek(fin,uReadPos,SEEK_SET)!=0) - break; - - if (fread(buf,(uInt)uReadSize,1,fin)!=1) - break; - - for (i=(int)uReadSize-3; (i--)>0;) - if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && - ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) - { - uPosFound = uReadPos+i; - break; - } - - if (uPosFound!=0) - break; - } - TRYFREE(buf); - return uPosFound; -} - -/* - Open a Zip file. path contain the full pathname (by example, - on a Windows NT computer "c:\\test\\zlib109.zip" or on an Unix computer - "zlib/zlib109.zip". - If the zipfile cannot be opened (file don't exist or in not valid), the - return value is NULL. - Else, the return value is a unzFile Handle, usable with other function - of this unzip package. -*/ -extern unzFile ZEXPORT unzOpen (path) - const char *path; -{ - unz_s us; - unz_s *s; - uLong central_pos,uL; - FILE * fin ; - - uLong number_disk; /* number of the current dist, used for - spaning ZIP, unsupported, always 0*/ - uLong number_disk_with_CD; /* number the the disk with central dir, used - for spaning ZIP, unsupported, always 0*/ - uLong number_entry_CD; /* total number of entries in - the central dir - (same than number_entry on nospan) */ - - int err=UNZ_OK; - - if (unz_copyright[0]!=' ') - return NULL; - - fin=fopen(path,"rb"); - if (fin==NULL) - return NULL; - - central_pos = unzlocal_SearchCentralDir(fin); - if (central_pos==0) - err=UNZ_ERRNO; - - if (fseek(fin,central_pos,SEEK_SET)!=0) - err=UNZ_ERRNO; - - /* the signature, already checked */ - if (unzlocal_getLong(fin,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of this disk */ - if (unzlocal_getShort(fin,&number_disk)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of the disk with the start of the central directory */ - if (unzlocal_getShort(fin,&number_disk_with_CD)!=UNZ_OK) - err=UNZ_ERRNO; - - /* total number of entries in the central dir on this disk */ - if (unzlocal_getShort(fin,&us.gi.number_entry)!=UNZ_OK) - err=UNZ_ERRNO; - - /* total number of entries in the central dir */ - if (unzlocal_getShort(fin,&number_entry_CD)!=UNZ_OK) - err=UNZ_ERRNO; - - if ((number_entry_CD!=us.gi.number_entry) || - (number_disk_with_CD!=0) || - (number_disk!=0)) - err=UNZ_BADZIPFILE; - - /* size of the central directory */ - if (unzlocal_getLong(fin,&us.size_central_dir)!=UNZ_OK) - err=UNZ_ERRNO; - - /* offset of start of central directory with respect to the - starting disk number */ - if (unzlocal_getLong(fin,&us.offset_central_dir)!=UNZ_OK) - err=UNZ_ERRNO; - - /* zipfile comment length */ - if (unzlocal_getShort(fin,&us.gi.size_comment)!=UNZ_OK) - err=UNZ_ERRNO; - - if ((central_pos<us.offset_central_dir+us.size_central_dir) && - (err==UNZ_OK)) - err=UNZ_BADZIPFILE; - - if (err!=UNZ_OK) - { - fclose(fin); - return NULL; - } - - us.file=fin; - us.byte_before_the_zipfile = central_pos - - (us.offset_central_dir+us.size_central_dir); - us.central_pos = central_pos; - us.pfile_in_zip_read = NULL; - - - s=(unz_s*)ALLOC(sizeof(unz_s)); - *s=us; - unzGoToFirstFile((unzFile)s); - return (unzFile)s; -} - - -/* - Close a ZipFile opened with unzipOpen. - If there is files inside the .Zip opened with unzipOpenCurrentFile (see later), - these files MUST be closed with unzipCloseCurrentFile before call unzipClose. - return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzClose (file) - unzFile file; -{ - unz_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - - if (s->pfile_in_zip_read!=NULL) - unzCloseCurrentFile(file); - - fclose(s->file); - TRYFREE(s); - return UNZ_OK; -} - - -/* - Write info about the ZipFile in the *pglobal_info structure. - No preparation of the structure is needed - return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info) - unzFile file; - unz_global_info *pglobal_info; -{ - unz_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - *pglobal_info=s->gi; - return UNZ_OK; -} - - -/* - Translate date/time from Dos format to tm_unz (readable more easilty) -*/ -local void unzlocal_DosDateToTmuDate (ulDosDate, ptm) - uLong ulDosDate; - tm_unz* ptm; -{ - uLong uDate; - uDate = (uLong)(ulDosDate>>16); - ptm->tm_mday = (uInt)(uDate&0x1f) ; - ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ; - ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ; - - ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800); - ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ; - ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ; -} - -/* - Get Info about the current file in the zipfile, with internal only info -*/ -local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file, - unz_file_info *pfile_info, - unz_file_info_internal - *pfile_info_internal, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); - -local int unzlocal_GetCurrentFileInfoInternal (file, - pfile_info, - pfile_info_internal, - szFileName, fileNameBufferSize, - extraField, extraFieldBufferSize, - szComment, commentBufferSize) - unzFile file; - unz_file_info *pfile_info; - unz_file_info_internal *pfile_info_internal; - char *szFileName; - uLong fileNameBufferSize; - void *extraField; - uLong extraFieldBufferSize; - char *szComment; - uLong commentBufferSize; -{ - unz_s* s; - unz_file_info file_info; - unz_file_info_internal file_info_internal; - int err=UNZ_OK; - uLong uMagic; - long lSeek=0; - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - if (fseek(s->file,s->pos_in_central_dir+s->byte_before_the_zipfile,SEEK_SET)!=0) - err=UNZ_ERRNO; - - - /* we check the magic */ - if (err==UNZ_OK) - if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK) - err=UNZ_ERRNO; - else if (uMagic!=0x02014b50) - err=UNZ_BADZIPFILE; - - if (unzlocal_getShort(s->file,&file_info.version) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.version_needed) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.flag) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.compression_method) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&file_info.dosDate) != UNZ_OK) - err=UNZ_ERRNO; - - unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date); - - if (unzlocal_getLong(s->file,&file_info.crc) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&file_info.compressed_size) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&file_info.uncompressed_size) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.size_filename) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.size_file_extra) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.size_file_comment) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.disk_num_start) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&file_info.internal_fa) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&file_info.external_fa) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&file_info_internal.offset_curfile) != UNZ_OK) - err=UNZ_ERRNO; - - lSeek+=file_info.size_filename; - if ((err==UNZ_OK) && (szFileName!=NULL)) - { - uLong uSizeRead ; - if (file_info.size_filename<fileNameBufferSize) - { - *(szFileName+file_info.size_filename)='\0'; - uSizeRead = file_info.size_filename; - } - else - uSizeRead = fileNameBufferSize; - - if ((file_info.size_filename>0) && (fileNameBufferSize>0)) - if (fread(szFileName,(uInt)uSizeRead,1,s->file)!=1) - err=UNZ_ERRNO; - lSeek -= uSizeRead; - } - - - if ((err==UNZ_OK) && (extraField!=NULL)) - { - uLong uSizeRead ; - if (file_info.size_file_extra<extraFieldBufferSize) - uSizeRead = file_info.size_file_extra; - else - uSizeRead = extraFieldBufferSize; - - if (lSeek!=0) - if (fseek(s->file,lSeek,SEEK_CUR)==0) - lSeek=0; - else - err=UNZ_ERRNO; - if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0)) - if (fread(extraField,(uInt)uSizeRead,1,s->file)!=1) - err=UNZ_ERRNO; - lSeek += file_info.size_file_extra - uSizeRead; - } - else - lSeek+=file_info.size_file_extra; - - - if ((err==UNZ_OK) && (szComment!=NULL)) - { - uLong uSizeRead ; - if (file_info.size_file_comment<commentBufferSize) - { - *(szComment+file_info.size_file_comment)='\0'; - uSizeRead = file_info.size_file_comment; - } - else - uSizeRead = commentBufferSize; - - if (lSeek!=0) - if (fseek(s->file,lSeek,SEEK_CUR)==0) - lSeek=0; - else - err=UNZ_ERRNO; - if ((file_info.size_file_comment>0) && (commentBufferSize>0)) - if (fread(szComment,(uInt)uSizeRead,1,s->file)!=1) - err=UNZ_ERRNO; - lSeek+=file_info.size_file_comment - uSizeRead; - } - else - lSeek+=file_info.size_file_comment; - - if ((err==UNZ_OK) && (pfile_info!=NULL)) - *pfile_info=file_info; - - if ((err==UNZ_OK) && (pfile_info_internal!=NULL)) - *pfile_info_internal=file_info_internal; - - return err; -} - - - -/* - Write info about the ZipFile in the *pglobal_info structure. - No preparation of the structure is needed - return UNZ_OK if there is no problem. -*/ -extern int ZEXPORT unzGetCurrentFileInfo (file, - pfile_info, - szFileName, fileNameBufferSize, - extraField, extraFieldBufferSize, - szComment, commentBufferSize) - unzFile file; - unz_file_info *pfile_info; - char *szFileName; - uLong fileNameBufferSize; - void *extraField; - uLong extraFieldBufferSize; - char *szComment; - uLong commentBufferSize; -{ - return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL, - szFileName,fileNameBufferSize, - extraField,extraFieldBufferSize, - szComment,commentBufferSize); -} - -/* - Set the current file of the zipfile to the first file. - return UNZ_OK if there is no problem -*/ -extern int ZEXPORT unzGoToFirstFile (file) - unzFile file; -{ - int err=UNZ_OK; - unz_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - s->pos_in_central_dir=s->offset_central_dir; - s->num_file=0; - err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - s->current_file_ok = (err == UNZ_OK); - return err; -} - - -/* - Set the current file of the zipfile to the next file. - return UNZ_OK if there is no problem - return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. -*/ -extern int ZEXPORT unzGoToNextFile (file) - unzFile file; -{ - unz_s* s; - int err; - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - if (s->num_file+1==s->gi.number_entry) - return UNZ_END_OF_LIST_OF_FILE; - - s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + - s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; - s->num_file++; - err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - s->current_file_ok = (err == UNZ_OK); - return err; -} - - -/* - Try locate the file szFileName in the zipfile. - For the iCaseSensitivity signification, see unzipStringFileNameCompare - - return value : - UNZ_OK if the file is found. It becomes the current file. - UNZ_END_OF_LIST_OF_FILE if the file is not found -*/ -extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity) - unzFile file; - const char *szFileName; - int iCaseSensitivity; -{ - unz_s* s; - int err; - - - uLong num_fileSaved; - uLong pos_in_central_dirSaved; - - - if (file==NULL) - return UNZ_PARAMERROR; - - if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) - return UNZ_PARAMERROR; - - s=(unz_s*)file; - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - - num_fileSaved = s->num_file; - pos_in_central_dirSaved = s->pos_in_central_dir; - - err = unzGoToFirstFile(file); - - while (err == UNZ_OK) - { - char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; - unzGetCurrentFileInfo(file,NULL, - szCurrentFileName,sizeof(szCurrentFileName)-1, - NULL,0,NULL,0); - if (unzStringFileNameCompare(szCurrentFileName, - szFileName,iCaseSensitivity)==0) - return UNZ_OK; - err = unzGoToNextFile(file); - } - - s->num_file = num_fileSaved ; - s->pos_in_central_dir = pos_in_central_dirSaved ; - return err; -} - - -/* - Read the local header of the current zipfile - Check the coherency of the local header and info in the end of central - directory about this file - store in *piSizeVar the size of extra info in local header - (filename and size of extra field data) -*/ -local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar, - poffset_local_extrafield, - psize_local_extrafield) - unz_s* s; - uInt* piSizeVar; - uLong *poffset_local_extrafield; - uInt *psize_local_extrafield; -{ - uLong uMagic,uData,uFlags; - uLong size_filename; - uLong size_extra_field; - int err=UNZ_OK; - - *piSizeVar = 0; - *poffset_local_extrafield = 0; - *psize_local_extrafield = 0; - - if (fseek(s->file,s->cur_file_info_internal.offset_curfile + - s->byte_before_the_zipfile,SEEK_SET)!=0) - return UNZ_ERRNO; - - - if (err==UNZ_OK) - if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK) - err=UNZ_ERRNO; - else if (uMagic!=0x04034b50) - err=UNZ_BADZIPFILE; - - if (unzlocal_getShort(s->file,&uData) != UNZ_OK) - err=UNZ_ERRNO; -/* - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) - err=UNZ_BADZIPFILE; -*/ - if (unzlocal_getShort(s->file,&uFlags) != UNZ_OK) - err=UNZ_ERRNO; - - if (unzlocal_getShort(s->file,&uData) != UNZ_OK) - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method)) - err=UNZ_BADZIPFILE; - - if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) && - (s->cur_file_info.compression_method!=Z_DEFLATED)) - err=UNZ_BADZIPFILE; - - if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* date/time */ - err=UNZ_ERRNO; - - if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* crc */ - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && - ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* size compr */ - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && - ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - if (unzlocal_getLong(s->file,&uData) != UNZ_OK) /* size uncompr */ - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && - ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - - if (unzlocal_getShort(s->file,&size_filename) != UNZ_OK) - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) - err=UNZ_BADZIPFILE; - - *piSizeVar += (uInt)size_filename; - - if (unzlocal_getShort(s->file,&size_extra_field) != UNZ_OK) - err=UNZ_ERRNO; - *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + - SIZEZIPLOCALHEADER + size_filename; - *psize_local_extrafield = (uInt)size_extra_field; - - *piSizeVar += (uInt)size_extra_field; - - return err; -} - -/* - Open for reading data the current file in the zipfile. - If there is no error and the file is opened, the return value is UNZ_OK. -*/ -extern int ZEXPORT unzOpenCurrentFile (file) - unzFile file; -{ - int err=UNZ_OK; - int Store; - uInt iSizeVar; - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - uLong offset_local_extrafield; /* offset of the local extra field */ - uInt size_local_extrafield; /* size of the local extra field */ - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - if (!s->current_file_ok) - return UNZ_PARAMERROR; - - if (s->pfile_in_zip_read != NULL) - unzCloseCurrentFile(file); - - if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar, - &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK) - return UNZ_BADZIPFILE; - - pfile_in_zip_read_info = (file_in_zip_read_info_s*) - ALLOC(sizeof(file_in_zip_read_info_s)); - if (pfile_in_zip_read_info==NULL) - return UNZ_INTERNALERROR; - - pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE); - pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield; - pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield; - pfile_in_zip_read_info->pos_local_extrafield=0; - - if (pfile_in_zip_read_info->read_buffer==NULL) - { - TRYFREE(pfile_in_zip_read_info); - return UNZ_INTERNALERROR; - } - - pfile_in_zip_read_info->stream_initialised=0; - - if ((s->cur_file_info.compression_method!=0) && - (s->cur_file_info.compression_method!=Z_DEFLATED)) - err=UNZ_BADZIPFILE; - Store = s->cur_file_info.compression_method==0; - - pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; - pfile_in_zip_read_info->crc32=0; - pfile_in_zip_read_info->compression_method = - s->cur_file_info.compression_method; - pfile_in_zip_read_info->file=s->file; - pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; - - pfile_in_zip_read_info->stream.total_out = 0; - - if (!Store) - { - pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; - pfile_in_zip_read_info->stream.zfree = (free_func)0; - pfile_in_zip_read_info->stream.opaque = (voidpf)0; - - err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); - if (err == Z_OK) - pfile_in_zip_read_info->stream_initialised=1; - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. - * In unzip, i don't wait absolutely Z_STREAM_END because I known the - * size of both compressed and uncompressed data - */ - } - pfile_in_zip_read_info->rest_read_compressed = - s->cur_file_info.compressed_size ; - pfile_in_zip_read_info->rest_read_uncompressed = - s->cur_file_info.uncompressed_size ; - - - pfile_in_zip_read_info->pos_in_zipfile = - s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + - iSizeVar; - - pfile_in_zip_read_info->stream.avail_in = (uInt)0; - - - s->pfile_in_zip_read = pfile_in_zip_read_info; - return UNZ_OK; -} - - -/* - Read bytes from the current file. - buf contain buffer where data must be copied - len the size of buf. - - return the number of byte copied if somes bytes are copied - return 0 if the end of file was reached - return <0 with error code if there is an error - (UNZ_ERRNO for IO error, or zLib error for uncompress error) -*/ -extern int ZEXPORT unzReadCurrentFile (file, buf, len) - unzFile file; - voidp buf; - unsigned len; -{ - int err=UNZ_OK; - uInt iRead = 0; - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - - if ((pfile_in_zip_read_info->read_buffer == NULL)) - return UNZ_END_OF_LIST_OF_FILE; - if (len==0) - return 0; - - pfile_in_zip_read_info->stream.next_out = (Bytef*)buf; - - pfile_in_zip_read_info->stream.avail_out = (uInt)len; - - if (len>pfile_in_zip_read_info->rest_read_uncompressed) - pfile_in_zip_read_info->stream.avail_out = - (uInt)pfile_in_zip_read_info->rest_read_uncompressed; - - while (pfile_in_zip_read_info->stream.avail_out>0) - { - if ((pfile_in_zip_read_info->stream.avail_in==0) && - (pfile_in_zip_read_info->rest_read_compressed>0)) - { - uInt uReadThis = UNZ_BUFSIZE; - if (pfile_in_zip_read_info->rest_read_compressed<uReadThis) - uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed; - if (uReadThis == 0) - return UNZ_EOF; - if (fseek(pfile_in_zip_read_info->file, - pfile_in_zip_read_info->pos_in_zipfile + - pfile_in_zip_read_info->byte_before_the_zipfile,SEEK_SET)!=0) - return UNZ_ERRNO; - if (fread(pfile_in_zip_read_info->read_buffer,uReadThis,1, - pfile_in_zip_read_info->file)!=1) - return UNZ_ERRNO; - pfile_in_zip_read_info->pos_in_zipfile += uReadThis; - - pfile_in_zip_read_info->rest_read_compressed-=uReadThis; - - pfile_in_zip_read_info->stream.next_in = - (Bytef*)pfile_in_zip_read_info->read_buffer; - pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis; - } - - if (pfile_in_zip_read_info->compression_method==0) - { - uInt uDoCopy,i ; - if (pfile_in_zip_read_info->stream.avail_out < - pfile_in_zip_read_info->stream.avail_in) - uDoCopy = pfile_in_zip_read_info->stream.avail_out ; - else - uDoCopy = pfile_in_zip_read_info->stream.avail_in ; - - for (i=0;i<uDoCopy;i++) - *(pfile_in_zip_read_info->stream.next_out+i) = - *(pfile_in_zip_read_info->stream.next_in+i); - - pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32, - pfile_in_zip_read_info->stream.next_out, - uDoCopy); - pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy; - pfile_in_zip_read_info->stream.avail_in -= uDoCopy; - pfile_in_zip_read_info->stream.avail_out -= uDoCopy; - pfile_in_zip_read_info->stream.next_out += uDoCopy; - pfile_in_zip_read_info->stream.next_in += uDoCopy; - pfile_in_zip_read_info->stream.total_out += uDoCopy; - iRead += uDoCopy; - } - else - { - uLong uTotalOutBefore,uTotalOutAfter; - const Bytef *bufBefore; - uLong uOutThis; - int flush=Z_SYNC_FLUSH; - - uTotalOutBefore = pfile_in_zip_read_info->stream.total_out; - bufBefore = pfile_in_zip_read_info->stream.next_out; - - /* - if ((pfile_in_zip_read_info->rest_read_uncompressed == - pfile_in_zip_read_info->stream.avail_out) && - (pfile_in_zip_read_info->rest_read_compressed == 0)) - flush = Z_FINISH; - */ - err=inflate(&pfile_in_zip_read_info->stream,flush); - - uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; - uOutThis = uTotalOutAfter-uTotalOutBefore; - - pfile_in_zip_read_info->crc32 = - crc32(pfile_in_zip_read_info->crc32,bufBefore, - (uInt)(uOutThis)); - - pfile_in_zip_read_info->rest_read_uncompressed -= - uOutThis; - - iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); - - if (err==Z_STREAM_END) - return (iRead==0) ? UNZ_EOF : iRead; - if (err!=Z_OK) - break; - } - } - - if (err==Z_OK) - return iRead; - return err; -} - - -/* - Give the current position in uncompressed data -*/ -extern z_off_t ZEXPORT unztell (file) - unzFile file; -{ - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - return (z_off_t)pfile_in_zip_read_info->stream.total_out; -} - - -/* - return 1 if the end of file was reached, 0 elsewhere -*/ -extern int ZEXPORT unzeof (file) - unzFile file; -{ - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - if (pfile_in_zip_read_info->rest_read_uncompressed == 0) - return 1; - else - return 0; -} - - - -/* - Read extra field from the current file (opened by unzOpenCurrentFile) - This is the local-header version of the extra field (sometimes, there is - more info in the local-header version than in the central-header) - - if buf==NULL, it return the size of the local extra field that can be read - - if buf!=NULL, len is the size of the buffer, the extra header is copied in - buf. - the return value is the number of bytes copied in buf, or (if <0) - the error code -*/ -extern int ZEXPORT unzGetLocalExtrafield (file,buf,len) - unzFile file; - voidp buf; - unsigned len; -{ - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - uInt read_now; - uLong size_to_read; - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - size_to_read = (pfile_in_zip_read_info->size_local_extrafield - - pfile_in_zip_read_info->pos_local_extrafield); - - if (buf==NULL) - return (int)size_to_read; - - if (len>size_to_read) - read_now = (uInt)size_to_read; - else - read_now = (uInt)len ; - - if (read_now==0) - return 0; - - if (fseek(pfile_in_zip_read_info->file, - pfile_in_zip_read_info->offset_local_extrafield + - pfile_in_zip_read_info->pos_local_extrafield,SEEK_SET)!=0) - return UNZ_ERRNO; - - if (fread(buf,(uInt)size_to_read,1,pfile_in_zip_read_info->file)!=1) - return UNZ_ERRNO; - - return (int)read_now; -} - -/* - Close the file in zip opened with unzipOpenCurrentFile - Return UNZ_CRCERROR if all the file was read but the CRC is not good -*/ -extern int ZEXPORT unzCloseCurrentFile (file) - unzFile file; -{ - int err=UNZ_OK; - - unz_s* s; - file_in_zip_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - - if (pfile_in_zip_read_info->rest_read_uncompressed == 0) - { - if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) - err=UNZ_CRCERROR; - } - - - TRYFREE(pfile_in_zip_read_info->read_buffer); - pfile_in_zip_read_info->read_buffer = NULL; - if (pfile_in_zip_read_info->stream_initialised) - inflateEnd(&pfile_in_zip_read_info->stream); - - pfile_in_zip_read_info->stream_initialised = 0; - TRYFREE(pfile_in_zip_read_info); - - s->pfile_in_zip_read=NULL; - - return err; -} - - -/* - Get the global comment string of the ZipFile, in the szComment buffer. - uSizeBuf is the size of the szComment buffer. - return the number of byte copied or an error code <0 -*/ -extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf) - unzFile file; - char *szComment; - uLong uSizeBuf; -{ - int err=UNZ_OK; - unz_s* s; - uLong uReadThis ; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz_s*)file; - - uReadThis = uSizeBuf; - if (uReadThis>s->gi.size_comment) - uReadThis = s->gi.size_comment; - - if (fseek(s->file,s->central_pos+22,SEEK_SET)!=0) - return UNZ_ERRNO; - - if (uReadThis>0) - { - *szComment='\0'; - if (fread(szComment,(uInt)uReadThis,1,s->file)!=1) - return UNZ_ERRNO; - } - - if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment)) - *(szComment+s->gi.size_comment)='\0'; - return (int)uReadThis; -} diff --git a/zlib/contrib/minizip/unzip.def b/zlib/contrib/minizip/unzip.def deleted file mode 100644 index f6ede89bc96..00000000000 --- a/zlib/contrib/minizip/unzip.def +++ /dev/null @@ -1,15 +0,0 @@ - unzOpen @61 - unzClose @62 - unzGetGlobalInfo @63 - unzGetCurrentFileInfo @64 - unzGoToFirstFile @65 - unzGoToNextFile @66 - unzOpenCurrentFile @67 - unzReadCurrentFile @68 - unztell @70 - unzeof @71 - unzCloseCurrentFile @72 - unzGetGlobalComment @73 - unzStringFileNameCompare @74 - unzLocateFile @75 - unzGetLocalExtrafield @76 diff --git a/zlib/contrib/minizip/unzip.h b/zlib/contrib/minizip/unzip.h deleted file mode 100644 index 76692cb703c..00000000000 --- a/zlib/contrib/minizip/unzip.h +++ /dev/null @@ -1,275 +0,0 @@ -/* unzip.h -- IO for uncompress .zip files using zlib - Version 0.15 beta, Mar 19th, 1998, - - Copyright (C) 1998 Gilles Vollant - - This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g - WinZip, InfoZip tools and compatible. - Encryption and multi volume ZipFile (span) are not supported. - Old compressions used by old PKZip 1.x are not supported - - THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE - CAN CHANGE IN FUTURE VERSION !! - I WAIT FEEDBACK at mail info@winimage.com - Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution - - Condition of use and distribution are the same than zlib : - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - -*/ -/* for more info about .ZIP format, see - ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip - PkWare has also a specification at : - ftp://ftp.pkware.com/probdesc.zip */ - -#ifndef _unz_H -#define _unz_H - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef _ZLIB_H -#include "zlib.h" -#endif - -#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) -/* like the STRICT of WIN32, we define a pointer that cannot be converted - from (void*) without cast */ -typedef struct TagunzFile__ { int unused; } unzFile__; -typedef unzFile__ *unzFile; -#else -typedef voidp unzFile; -#endif - - -#define UNZ_OK (0) -#define UNZ_END_OF_LIST_OF_FILE (-100) -#define UNZ_ERRNO (Z_ERRNO) -#define UNZ_EOF (0) -#define UNZ_PARAMERROR (-102) -#define UNZ_BADZIPFILE (-103) -#define UNZ_INTERNALERROR (-104) -#define UNZ_CRCERROR (-105) - -/* tm_unz contain date/time info */ -typedef struct tm_unz_s -{ - uInt tm_sec; /* seconds after the minute - [0,59] */ - uInt tm_min; /* minutes after the hour - [0,59] */ - uInt tm_hour; /* hours since midnight - [0,23] */ - uInt tm_mday; /* day of the month - [1,31] */ - uInt tm_mon; /* months since January - [0,11] */ - uInt tm_year; /* years - [1980..2044] */ -} tm_unz; - -/* unz_global_info structure contain global data about the ZIPfile - These data comes from the end of central dir */ -typedef struct unz_global_info_s -{ - uLong number_entry; /* total number of entries in - the central dir on this disk */ - uLong size_comment; /* size of the global comment of the zipfile */ -} unz_global_info; - - -/* unz_file_info contain information about a file in the zipfile */ -typedef struct unz_file_info_s -{ - uLong version; /* version made by 2 bytes */ - uLong version_needed; /* version needed to extract 2 bytes */ - uLong flag; /* general purpose bit flag 2 bytes */ - uLong compression_method; /* compression method 2 bytes */ - uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ - uLong crc; /* crc-32 4 bytes */ - uLong compressed_size; /* compressed size 4 bytes */ - uLong uncompressed_size; /* uncompressed size 4 bytes */ - uLong size_filename; /* filename length 2 bytes */ - uLong size_file_extra; /* extra field length 2 bytes */ - uLong size_file_comment; /* file comment length 2 bytes */ - - uLong disk_num_start; /* disk number start 2 bytes */ - uLong internal_fa; /* internal file attributes 2 bytes */ - uLong external_fa; /* external file attributes 4 bytes */ - - tm_unz tmu_date; -} unz_file_info; - -extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, - const char* fileName2, - int iCaseSensitivity)); -/* - Compare two filename (fileName1,fileName2). - If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) - If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi - or strcasecmp) - If iCaseSenisivity = 0, case sensitivity is defaut of your operating system - (like 1 on Unix, 2 on Windows) -*/ - - -extern unzFile ZEXPORT unzOpen OF((const char *path)); -/* - Open a Zip file. path contain the full pathname (by example, - on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer - "zlib/zlib111.zip". - If the zipfile cannot be opened (file don't exist or in not valid), the - return value is NULL. - Else, the return value is a unzFile Handle, usable with other function - of this unzip package. -*/ - -extern int ZEXPORT unzClose OF((unzFile file)); -/* - Close a ZipFile opened with unzipOpen. - If there is files inside the .Zip opened with unzOpenCurrentFile (see later), - these files MUST be closed with unzipCloseCurrentFile before call unzipClose. - return UNZ_OK if there is no problem. */ - -extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, - unz_global_info *pglobal_info)); -/* - Write info about the ZipFile in the *pglobal_info structure. - No preparation of the structure is needed - return UNZ_OK if there is no problem. */ - - -extern int ZEXPORT unzGetGlobalComment OF((unzFile file, - char *szComment, - uLong uSizeBuf)); -/* - Get the global comment string of the ZipFile, in the szComment buffer. - uSizeBuf is the size of the szComment buffer. - return the number of byte copied or an error code <0 -*/ - - -/***************************************************************************/ -/* Unzip package allow you browse the directory of the zipfile */ - -extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); -/* - Set the current file of the zipfile to the first file. - return UNZ_OK if there is no problem -*/ - -extern int ZEXPORT unzGoToNextFile OF((unzFile file)); -/* - Set the current file of the zipfile to the next file. - return UNZ_OK if there is no problem - return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. -*/ - -extern int ZEXPORT unzLocateFile OF((unzFile file, - const char *szFileName, - int iCaseSensitivity)); -/* - Try locate the file szFileName in the zipfile. - For the iCaseSensitivity signification, see unzStringFileNameCompare - - return value : - UNZ_OK if the file is found. It becomes the current file. - UNZ_END_OF_LIST_OF_FILE if the file is not found -*/ - - -extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, - unz_file_info *pfile_info, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); -/* - Get Info about the current file - if pfile_info!=NULL, the *pfile_info structure will contain somes info about - the current file - if szFileName!=NULL, the filemane string will be copied in szFileName - (fileNameBufferSize is the size of the buffer) - if extraField!=NULL, the extra field information will be copied in extraField - (extraFieldBufferSize is the size of the buffer). - This is the Central-header version of the extra field - if szComment!=NULL, the comment string of the file will be copied in szComment - (commentBufferSize is the size of the buffer) -*/ - -/***************************************************************************/ -/* for reading the content of the current zipfile, you can open it, read data - from it, and close it (you can close it before reading all the file) - */ - -extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); -/* - Open for reading data the current file in the zipfile. - If there is no error, the return value is UNZ_OK. -*/ - -extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); -/* - Close the file in zip opened with unzOpenCurrentFile - Return UNZ_CRCERROR if all the file was read but the CRC is not good -*/ - - -extern int ZEXPORT unzReadCurrentFile OF((unzFile file, - voidp buf, - unsigned len)); -/* - Read bytes from the current file (opened by unzOpenCurrentFile) - buf contain buffer where data must be copied - len the size of buf. - - return the number of byte copied if somes bytes are copied - return 0 if the end of file was reached - return <0 with error code if there is an error - (UNZ_ERRNO for IO error, or zLib error for uncompress error) -*/ - -extern z_off_t ZEXPORT unztell OF((unzFile file)); -/* - Give the current position in uncompressed data -*/ - -extern int ZEXPORT unzeof OF((unzFile file)); -/* - return 1 if the end of file was reached, 0 elsewhere -*/ - -extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, - voidp buf, - unsigned len)); -/* - Read extra field from the current file (opened by unzOpenCurrentFile) - This is the local-header version of the extra field (sometimes, there is - more info in the local-header version than in the central-header) - - if buf==NULL, it return the size of the local extra field - - if buf!=NULL, len is the size of the buffer, the extra header is copied in - buf. - the return value is the number of bytes copied in buf, or (if <0) - the error code -*/ - -#ifdef __cplusplus -} -#endif - -#endif /* _unz_H */ diff --git a/zlib/contrib/minizip/zip.c b/zlib/contrib/minizip/zip.c deleted file mode 100644 index 0cae64ab7b1..00000000000 --- a/zlib/contrib/minizip/zip.c +++ /dev/null @@ -1,718 +0,0 @@ -/* zip.c -- IO on .zip files using zlib - Version 0.15 beta, Mar 19th, 1998, - - Read zip.h for more info -*/ - - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "zlib.h" -#include "zip.h" - -#ifdef STDC -# include <stddef.h> -# include <string.h> -# include <stdlib.h> -#endif -#ifdef NO_ERRNO_H - extern int errno; -#else -# include <errno.h> -#endif - - -#ifndef local -# define local static -#endif -/* compile with -Dlocal if your debugger can't find static symbols */ - -#ifndef VERSIONMADEBY -# define VERSIONMADEBY (0x0) /* platform depedent */ -#endif - -#ifndef Z_BUFSIZE -#define Z_BUFSIZE (16384) -#endif - -#ifndef Z_MAXFILENAMEINZIP -#define Z_MAXFILENAMEINZIP (256) -#endif - -#ifndef ALLOC -# define ALLOC(size) (malloc(size)) -#endif -#ifndef TRYFREE -# define TRYFREE(p) {if (p) free(p);} -#endif - -/* -#define SIZECENTRALDIRITEM (0x2e) -#define SIZEZIPLOCALHEADER (0x1e) -*/ - -/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ - -#ifndef SEEK_CUR -#define SEEK_CUR 1 -#endif - -#ifndef SEEK_END -#define SEEK_END 2 -#endif - -#ifndef SEEK_SET -#define SEEK_SET 0 -#endif - -const char zip_copyright[] = - " zip 0.15 Copyright 1998 Gilles Vollant "; - - -#define SIZEDATA_INDATABLOCK (4096-(4*4)) - -#define LOCALHEADERMAGIC (0x04034b50) -#define CENTRALHEADERMAGIC (0x02014b50) -#define ENDHEADERMAGIC (0x06054b50) - -#define FLAG_LOCALHEADER_OFFSET (0x06) -#define CRC_LOCALHEADER_OFFSET (0x0e) - -#define SIZECENTRALHEADER (0x2e) /* 46 */ - -typedef struct linkedlist_datablock_internal_s -{ - struct linkedlist_datablock_internal_s* next_datablock; - uLong avail_in_this_block; - uLong filled_in_this_block; - uLong unused; /* for future use and alignement */ - unsigned char data[SIZEDATA_INDATABLOCK]; -} linkedlist_datablock_internal; - -typedef struct linkedlist_data_s -{ - linkedlist_datablock_internal* first_block; - linkedlist_datablock_internal* last_block; -} linkedlist_data; - - -typedef struct -{ - z_stream stream; /* zLib stream structure for inflate */ - int stream_initialised; /* 1 is stream is initialised */ - uInt pos_in_buffered_data; /* last written byte in buffered_data */ - - uLong pos_local_header; /* offset of the local header of the file - currenty writing */ - char* central_header; /* central header data for the current file */ - uLong size_centralheader; /* size of the central header for cur file */ - uLong flag; /* flag of the file currently writing */ - - int method; /* compression method of file currenty wr.*/ - Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ - uLong dosDate; - uLong crc32; -} curfile_info; - -typedef struct -{ - FILE * filezip; - linkedlist_data central_dir;/* datablock with central dir in construction*/ - int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ - curfile_info ci; /* info on the file curretly writing */ - - uLong begin_pos; /* position of the beginning of the zipfile */ - uLong number_entry; -} zip_internal; - -local linkedlist_datablock_internal* allocate_new_datablock() -{ - linkedlist_datablock_internal* ldi; - ldi = (linkedlist_datablock_internal*) - ALLOC(sizeof(linkedlist_datablock_internal)); - if (ldi!=NULL) - { - ldi->next_datablock = NULL ; - ldi->filled_in_this_block = 0 ; - ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; - } - return ldi; -} - -local void free_datablock(ldi) - linkedlist_datablock_internal* ldi; -{ - while (ldi!=NULL) - { - linkedlist_datablock_internal* ldinext = ldi->next_datablock; - TRYFREE(ldi); - ldi = ldinext; - } -} - -local void init_linkedlist(ll) - linkedlist_data* ll; -{ - ll->first_block = ll->last_block = NULL; -} - -local void free_linkedlist(ll) - linkedlist_data* ll; -{ - free_datablock(ll->first_block); - ll->first_block = ll->last_block = NULL; -} - - -local int add_data_in_datablock(ll,buf,len) - linkedlist_data* ll; - const void* buf; - uLong len; -{ - linkedlist_datablock_internal* ldi; - const unsigned char* from_copy; - - if (ll==NULL) - return ZIP_INTERNALERROR; - - if (ll->last_block == NULL) - { - ll->first_block = ll->last_block = allocate_new_datablock(); - if (ll->first_block == NULL) - return ZIP_INTERNALERROR; - } - - ldi = ll->last_block; - from_copy = (unsigned char*)buf; - - while (len>0) - { - uInt copy_this; - uInt i; - unsigned char* to_copy; - - if (ldi->avail_in_this_block==0) - { - ldi->next_datablock = allocate_new_datablock(); - if (ldi->next_datablock == NULL) - return ZIP_INTERNALERROR; - ldi = ldi->next_datablock ; - ll->last_block = ldi; - } - - if (ldi->avail_in_this_block < len) - copy_this = (uInt)ldi->avail_in_this_block; - else - copy_this = (uInt)len; - - to_copy = &(ldi->data[ldi->filled_in_this_block]); - - for (i=0;i<copy_this;i++) - *(to_copy+i)=*(from_copy+i); - - ldi->filled_in_this_block += copy_this; - ldi->avail_in_this_block -= copy_this; - from_copy += copy_this ; - len -= copy_this; - } - return ZIP_OK; -} - - -local int write_datablock(fout,ll) - FILE * fout; - linkedlist_data* ll; -{ - linkedlist_datablock_internal* ldi; - ldi = ll->first_block; - while (ldi!=NULL) - { - if (ldi->filled_in_this_block > 0) - if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,1,fout)!=1) - return ZIP_ERRNO; - ldi = ldi->next_datablock; - } - return ZIP_OK; -} - -/****************************************************************************/ - -/* =========================================================================== - Outputs a long in LSB order to the given file - nbByte == 1, 2 or 4 (byte, short or long) -*/ - -local int ziplocal_putValue OF((FILE *file, uLong x, int nbByte)); -local int ziplocal_putValue (file, x, nbByte) - FILE *file; - uLong x; - int nbByte; -{ - unsigned char buf[4]; - int n; - for (n = 0; n < nbByte; n++) { - buf[n] = (unsigned char)(x & 0xff); - x >>= 8; - } - if (fwrite(buf,nbByte,1,file)!=1) - return ZIP_ERRNO; - else - return ZIP_OK; -} - -local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte)); -local void ziplocal_putValue_inmemory (dest, x, nbByte) - void* dest; - uLong x; - int nbByte; -{ - unsigned char* buf=(unsigned char*)dest; - int n; - for (n = 0; n < nbByte; n++) { - buf[n] = (unsigned char)(x & 0xff); - x >>= 8; - } -} -/****************************************************************************/ - - -local uLong ziplocal_TmzDateToDosDate(ptm,dosDate) - tm_zip* ptm; - uLong dosDate; -{ - uLong year = (uLong)ptm->tm_year; - if (year>1980) - year-=1980; - else if (year>80) - year-=80; - return - (uLong) (((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) | - ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); -} - - -/****************************************************************************/ - -extern zipFile ZEXPORT zipOpen (pathname, append) - const char *pathname; - int append; -{ - zip_internal ziinit; - zip_internal* zi; - - ziinit.filezip = fopen(pathname,(append == 0) ? "wb" : "ab"); - if (ziinit.filezip == NULL) - return NULL; - ziinit.begin_pos = ftell(ziinit.filezip); - ziinit.in_opened_file_inzip = 0; - ziinit.ci.stream_initialised = 0; - ziinit.number_entry = 0; - init_linkedlist(&(ziinit.central_dir)); - - - zi = (zip_internal*)ALLOC(sizeof(zip_internal)); - if (zi==NULL) - { - fclose(ziinit.filezip); - return NULL; - } - - *zi = ziinit; - return (zipFile)zi; -} - -extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi, - extrafield_local, size_extrafield_local, - extrafield_global, size_extrafield_global, - comment, method, level) - zipFile file; - const char* filename; - const zip_fileinfo* zipfi; - const void* extrafield_local; - uInt size_extrafield_local; - const void* extrafield_global; - uInt size_extrafield_global; - const char* comment; - int method; - int level; -{ - zip_internal* zi; - uInt size_filename; - uInt size_comment; - uInt i; - int err = ZIP_OK; - - if (file == NULL) - return ZIP_PARAMERROR; - if ((method!=0) && (method!=Z_DEFLATED)) - return ZIP_PARAMERROR; - - zi = (zip_internal*)file; - - if (zi->in_opened_file_inzip == 1) - { - err = zipCloseFileInZip (file); - if (err != ZIP_OK) - return err; - } - - - if (filename==NULL) - filename="-"; - - if (comment==NULL) - size_comment = 0; - else - size_comment = strlen(comment); - - size_filename = strlen(filename); - - if (zipfi == NULL) - zi->ci.dosDate = 0; - else - { - if (zipfi->dosDate != 0) - zi->ci.dosDate = zipfi->dosDate; - else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate); - } - - zi->ci.flag = 0; - if ((level==8) || (level==9)) - zi->ci.flag |= 2; - if ((level==2)) - zi->ci.flag |= 4; - if ((level==1)) - zi->ci.flag |= 6; - - zi->ci.crc32 = 0; - zi->ci.method = method; - zi->ci.stream_initialised = 0; - zi->ci.pos_in_buffered_data = 0; - zi->ci.pos_local_header = ftell(zi->filezip); - zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + - size_extrafield_global + size_comment; - zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader); - - ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); - /* version info */ - ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2); - ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); - ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); - ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); - ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); - ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ - ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ - ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ - ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); - ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); - ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); - ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ - - if (zipfi==NULL) - ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); - else - ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); - - if (zipfi==NULL) - ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); - else - ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); - - ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header,4); - - for (i=0;i<size_filename;i++) - *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i); - - for (i=0;i<size_extrafield_global;i++) - *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) = - *(((const char*)extrafield_global)+i); - - for (i=0;i<size_comment;i++) - *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+ - size_extrafield_global+i) = *(filename+i); - if (zi->ci.central_header == NULL) - return ZIP_INTERNALERROR; - - /* write the local header */ - err = ziplocal_putValue(zi->filezip,(uLong)LOCALHEADERMAGIC,4); - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)20,2);/* version needed to extract */ - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.flag,2); - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.method,2); - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.dosDate,4); - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* crc 32, unknown */ - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* compressed size, unknown */ - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* uncompressed size, unknown */ - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)size_filename,2); - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)size_extrafield_local,2); - - if ((err==ZIP_OK) && (size_filename>0)) - if (fwrite(filename,(uInt)size_filename,1,zi->filezip)!=1) - err = ZIP_ERRNO; - - if ((err==ZIP_OK) && (size_extrafield_local>0)) - if (fwrite(extrafield_local,(uInt)size_extrafield_local,1,zi->filezip) - !=1) - err = ZIP_ERRNO; - - zi->ci.stream.avail_in = (uInt)0; - zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; - zi->ci.stream.next_out = zi->ci.buffered_data; - zi->ci.stream.total_in = 0; - zi->ci.stream.total_out = 0; - - if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED)) - { - zi->ci.stream.zalloc = (alloc_func)0; - zi->ci.stream.zfree = (free_func)0; - zi->ci.stream.opaque = (voidpf)0; - - err = deflateInit2(&zi->ci.stream, level, - Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0); - - if (err==Z_OK) - zi->ci.stream_initialised = 1; - } - - - if (err==Z_OK) - zi->in_opened_file_inzip = 1; - return err; -} - -extern int ZEXPORT zipWriteInFileInZip (file, buf, len) - zipFile file; - const voidp buf; - unsigned len; -{ - zip_internal* zi; - int err=ZIP_OK; - - if (file == NULL) - return ZIP_PARAMERROR; - zi = (zip_internal*)file; - - if (zi->in_opened_file_inzip == 0) - return ZIP_PARAMERROR; - - zi->ci.stream.next_in = buf; - zi->ci.stream.avail_in = len; - zi->ci.crc32 = crc32(zi->ci.crc32,buf,len); - - while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) - { - if (zi->ci.stream.avail_out == 0) - { - if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) - !=1) - err = ZIP_ERRNO; - zi->ci.pos_in_buffered_data = 0; - zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; - zi->ci.stream.next_out = zi->ci.buffered_data; - } - - if (zi->ci.method == Z_DEFLATED) - { - uLong uTotalOutBefore = zi->ci.stream.total_out; - err=deflate(&zi->ci.stream, Z_NO_FLUSH); - zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; - - } - else - { - uInt copy_this,i; - if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) - copy_this = zi->ci.stream.avail_in; - else - copy_this = zi->ci.stream.avail_out; - for (i=0;i<copy_this;i++) - *(((char*)zi->ci.stream.next_out)+i) = - *(((const char*)zi->ci.stream.next_in)+i); - { - zi->ci.stream.avail_in -= copy_this; - zi->ci.stream.avail_out-= copy_this; - zi->ci.stream.next_in+= copy_this; - zi->ci.stream.next_out+= copy_this; - zi->ci.stream.total_in+= copy_this; - zi->ci.stream.total_out+= copy_this; - zi->ci.pos_in_buffered_data += copy_this; - } - } - } - - return 0; -} - -extern int ZEXPORT zipCloseFileInZip (file) - zipFile file; -{ - zip_internal* zi; - int err=ZIP_OK; - - if (file == NULL) - return ZIP_PARAMERROR; - zi = (zip_internal*)file; - - if (zi->in_opened_file_inzip == 0) - return ZIP_PARAMERROR; - zi->ci.stream.avail_in = 0; - - if (zi->ci.method == Z_DEFLATED) - while (err==ZIP_OK) - { - uLong uTotalOutBefore; - if (zi->ci.stream.avail_out == 0) - { - if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) - !=1) - err = ZIP_ERRNO; - zi->ci.pos_in_buffered_data = 0; - zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; - zi->ci.stream.next_out = zi->ci.buffered_data; - } - uTotalOutBefore = zi->ci.stream.total_out; - err=deflate(&zi->ci.stream, Z_FINISH); - zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; - } - - if (err==Z_STREAM_END) - err=ZIP_OK; /* this is normal */ - - if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) - if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) - !=1) - err = ZIP_ERRNO; - - if ((zi->ci.method == Z_DEFLATED) && (err==ZIP_OK)) - { - err=deflateEnd(&zi->ci.stream); - zi->ci.stream_initialised = 0; - } - - ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)zi->ci.crc32,4); /*crc*/ - ziplocal_putValue_inmemory(zi->ci.central_header+20, - (uLong)zi->ci.stream.total_out,4); /*compr size*/ - ziplocal_putValue_inmemory(zi->ci.central_header+24, - (uLong)zi->ci.stream.total_in,4); /*uncompr size*/ - - if (err==ZIP_OK) - err = add_data_in_datablock(&zi->central_dir,zi->ci.central_header, - (uLong)zi->ci.size_centralheader); - free(zi->ci.central_header); - - if (err==ZIP_OK) - { - long cur_pos_inzip = ftell(zi->filezip); - if (fseek(zi->filezip, - zi->ci.pos_local_header + 14,SEEK_SET)!=0) - err = ZIP_ERRNO; - - if (err==ZIP_OK) - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.crc32,4); /* crc 32, unknown */ - - if (err==ZIP_OK) /* compressed size, unknown */ - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_out,4); - - if (err==ZIP_OK) /* uncompressed size, unknown */ - err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_in,4); - - if (fseek(zi->filezip, - cur_pos_inzip,SEEK_SET)!=0) - err = ZIP_ERRNO; - } - - zi->number_entry ++; - zi->in_opened_file_inzip = 0; - - return err; -} - -extern int ZEXPORT zipClose (file, global_comment) - zipFile file; - const char* global_comment; -{ - zip_internal* zi; - int err = 0; - uLong size_centraldir = 0; - uLong centraldir_pos_inzip ; - uInt size_global_comment; - if (file == NULL) - return ZIP_PARAMERROR; - zi = (zip_internal*)file; - - if (zi->in_opened_file_inzip == 1) - { - err = zipCloseFileInZip (file); - } - - if (global_comment==NULL) - size_global_comment = 0; - else - size_global_comment = strlen(global_comment); - - - centraldir_pos_inzip = ftell(zi->filezip); - if (err==ZIP_OK) - { - linkedlist_datablock_internal* ldi = zi->central_dir.first_block ; - while (ldi!=NULL) - { - if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) - if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block, - 1,zi->filezip) !=1 ) - err = ZIP_ERRNO; - - size_centraldir += ldi->filled_in_this_block; - ldi = ldi->next_datablock; - } - } - free_datablock(zi->central_dir.first_block); - - if (err==ZIP_OK) /* Magic End */ - err = ziplocal_putValue(zi->filezip,(uLong)ENDHEADERMAGIC,4); - - if (err==ZIP_OK) /* number of this disk */ - err = ziplocal_putValue(zi->filezip,(uLong)0,2); - - if (err==ZIP_OK) /* number of the disk with the start of the central directory */ - err = ziplocal_putValue(zi->filezip,(uLong)0,2); - - if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ - err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2); - - if (err==ZIP_OK) /* total number of entries in the central dir */ - err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2); - - if (err==ZIP_OK) /* size of the central directory */ - err = ziplocal_putValue(zi->filezip,(uLong)size_centraldir,4); - - if (err==ZIP_OK) /* offset of start of central directory with respect to the - starting disk number */ - err = ziplocal_putValue(zi->filezip,(uLong)centraldir_pos_inzip ,4); - - if (err==ZIP_OK) /* zipfile comment length */ - err = ziplocal_putValue(zi->filezip,(uLong)size_global_comment,2); - - if ((err==ZIP_OK) && (size_global_comment>0)) - if (fwrite(global_comment,(uInt)size_global_comment,1,zi->filezip) !=1 ) - err = ZIP_ERRNO; - fclose(zi->filezip); - TRYFREE(zi); - - return err; -} diff --git a/zlib/contrib/minizip/zip.def b/zlib/contrib/minizip/zip.def deleted file mode 100644 index 5d5079fbcee..00000000000 --- a/zlib/contrib/minizip/zip.def +++ /dev/null @@ -1,5 +0,0 @@ - zipOpen @80 - zipOpenNewFileInZip @81 - zipWriteInFileInZip @82 - zipCloseFileInZip @83 - zipClose @84 diff --git a/zlib/contrib/minizip/zip.h b/zlib/contrib/minizip/zip.h deleted file mode 100644 index 678260b330b..00000000000 --- a/zlib/contrib/minizip/zip.h +++ /dev/null @@ -1,150 +0,0 @@ -/* zip.h -- IO for compress .zip files using zlib - Version 0.15 alpha, Mar 19th, 1998, - - Copyright (C) 1998 Gilles Vollant - - This unzip package allow creates .ZIP file, compatible with PKZip 2.04g - WinZip, InfoZip tools and compatible. - Encryption and multi volume ZipFile (span) are not supported. - Old compressions used by old PKZip 1.x are not supported - - For uncompress .zip file, look at unzip.h - - THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE - CAN CHANGE IN FUTURE VERSION !! - I WAIT FEEDBACK at mail info@winimage.com - Visit also http://www.winimage.com/zLibDll/zip.htm for evolution - - Condition of use and distribution are the same than zlib : - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - -*/ - -/* for more info about .ZIP format, see - ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip - PkWare has also a specification at : - ftp://ftp.pkware.com/probdesc.zip -*/ - -#ifndef _zip_H -#define _zip_H - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef _ZLIB_H -#include "zlib.h" -#endif - -#if defined(STRICTZIP) || defined(STRICTZIPUNZIP) -/* like the STRICT of WIN32, we define a pointer that cannot be converted - from (void*) without cast */ -typedef struct TagzipFile__ { int unused; } zipFile__; -typedef zipFile__ *zipFile; -#else -typedef voidp zipFile; -#endif - -#define ZIP_OK (0) -#define ZIP_ERRNO (Z_ERRNO) -#define ZIP_PARAMERROR (-102) -#define ZIP_INTERNALERROR (-104) - -/* tm_zip contain date/time info */ -typedef struct tm_zip_s -{ - uInt tm_sec; /* seconds after the minute - [0,59] */ - uInt tm_min; /* minutes after the hour - [0,59] */ - uInt tm_hour; /* hours since midnight - [0,23] */ - uInt tm_mday; /* day of the month - [1,31] */ - uInt tm_mon; /* months since January - [0,11] */ - uInt tm_year; /* years - [1980..2044] */ -} tm_zip; - -typedef struct -{ - tm_zip tmz_date; /* date in understandable format */ - uLong dosDate; /* if dos_date == 0, tmu_date is used */ -/* uLong flag; */ /* general purpose bit flag 2 bytes */ - - uLong internal_fa; /* internal file attributes 2 bytes */ - uLong external_fa; /* external file attributes 4 bytes */ -} zip_fileinfo; - -extern zipFile ZEXPORT zipOpen OF((const char *pathname, int append)); -/* - Create a zipfile. - pathname contain on Windows NT a filename like "c:\\zlib\\zlib111.zip" or on - an Unix computer "zlib/zlib111.zip". - if the file pathname exist and append=1, the zip will be created at the end - of the file. (useful if the file contain a self extractor code) - If the zipfile cannot be opened, the return value is NULL. - Else, the return value is a zipFile Handle, usable with other function - of this zip package. - - -*/ - -extern int ZEXPORT zipOpenNewFileInZip OF((zipFile file, - const char* filename, - const zip_fileinfo* zipfi, - const void* extrafield_local, - uInt size_extrafield_local, - const void* extrafield_global, - uInt size_extrafield_global, - const char* comment, - int method, - int level)); -/* - Open a file in the ZIP for writing. - filename : the filename in zip (if NULL, '-' without quote will be used - *zipfi contain supplemental information - if extrafield_local!=NULL and size_extrafield_local>0, extrafield_local - contains the extrafield data the the local header - if extrafield_global!=NULL and size_extrafield_global>0, extrafield_global - contains the extrafield data the the local header - if comment != NULL, comment contain the comment string - method contain the compression method (0 for store, Z_DEFLATED for deflate) - level contain the level of compression (can be Z_DEFAULT_COMPRESSION) -*/ - -extern int ZEXPORT zipWriteInFileInZip OF((zipFile file, - const voidp buf, - unsigned len)); -/* - Write data in the zipfile -*/ - -extern int ZEXPORT zipCloseFileInZip OF((zipFile file)); -/* - Close the current file in the zipfile -*/ - -extern int ZEXPORT zipClose OF((zipFile file, - const char* global_comment)); -/* - Close the zipfile -*/ - -#ifdef __cplusplus -} -#endif - -#endif /* _zip_H */ diff --git a/zlib/contrib/minizip/zlibvc.def b/zlib/contrib/minizip/zlibvc.def deleted file mode 100644 index 7e9d60d55d9..00000000000 --- a/zlib/contrib/minizip/zlibvc.def +++ /dev/null @@ -1,74 +0,0 @@ -LIBRARY "zlib" - -DESCRIPTION '"""zlib data compression library"""' - - -VERSION 1.11 - - -HEAPSIZE 1048576,8192 - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 - - unzOpen @61 - unzClose @62 - unzGetGlobalInfo @63 - unzGetCurrentFileInfo @64 - unzGoToFirstFile @65 - unzGoToNextFile @66 - unzOpenCurrentFile @67 - unzReadCurrentFile @68 - unztell @70 - unzeof @71 - unzCloseCurrentFile @72 - unzGetGlobalComment @73 - unzStringFileNameCompare @74 - unzLocateFile @75 - unzGetLocalExtrafield @76 - - zipOpen @80 - zipOpenNewFileInZip @81 - zipWriteInFileInZip @82 - zipCloseFileInZip @83 - zipClose @84 diff --git a/zlib/contrib/minizip/zlibvc.dsp b/zlib/contrib/minizip/zlibvc.dsp deleted file mode 100644 index a70d4d4a6b0..00000000000 --- a/zlib/contrib/minizip/zlibvc.dsp +++ /dev/null @@ -1,651 +0,0 @@ -# Microsoft Developer Studio Project File - Name="zlibvc" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 5.00 -# ** DO NOT EDIT ** - -# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102 -# TARGTYPE "Win32 (ALPHA) Dynamic-Link Library" 0x0602 - -CFG=zlibvc - Win32 Release -!MESSAGE This is not a valid makefile. To build this project using NMAKE, -!MESSAGE use the Export Makefile command and run -!MESSAGE -!MESSAGE NMAKE /f "zlibvc.mak". -!MESSAGE -!MESSAGE You can specify a configuration when running NMAKE -!MESSAGE by defining the macro CFG on the command line. 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-############################################################################### - -Project: "zlibstat"=.\zlibstat.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Project: "zlibvc"=.\zlibvc.dsp - Package Owner=<4> - -Package=<5> -{{{ -}}} - -Package=<4> -{{{ -}}} - -############################################################################### - -Global: - -Package=<5> -{{{ -}}} - -Package=<3> -{{{ -}}} - -############################################################################### - diff --git a/zlib/contrib/untgz/makefile.w32 b/zlib/contrib/untgz/makefile.w32 deleted file mode 100644 index c99dc28cf55..00000000000 --- a/zlib/contrib/untgz/makefile.w32 +++ /dev/null @@ -1,63 +0,0 @@ -# Makefile for zlib. Modified for mingw32 -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, -# -# make -fmakefile.w32 -# - -CC=gcc - -# Generate dependencies (see end of the file) - -CPPFLAGS=-MMD - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is not found, replace with copy /Y . -CP=cp -f - -# The default value of RM is "rm -f." -# If "rm.exe" is not found, uncomment: -# RM=del - -LD=gcc -LDLIBS=-L. -lz -LDFLAGS=-s - - -INCL=zlib.h zconf.h -LIBS=libz.a - -AR=ar rcs - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o \ - inffast.o - -TEST_OBJS = minigzip.o untgz.o - -all: minigzip.exe untgz.exe - -rebuild: clean all - -libz.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $(LDFLAGS) -o $@ $< $(LDLIBS) - -.PHONY : clean - -clean: - $(RM) *.d *.o *.exe libz.a foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif - diff --git a/zlib/contrib/untgz/untgz.c b/zlib/contrib/untgz/untgz.c deleted file mode 100644 index 4a431ff3163..00000000000 --- a/zlib/contrib/untgz/untgz.c +++ /dev/null @@ -1,522 +0,0 @@ -/* - * untgz.c -- Display contents and/or extract file from - * a gzip'd TAR file - * written by "Pedro A. Aranda Guti\irrez" <paag@tid.es> - * adaptation to Unix by Jean-loup Gailly <jloup@gzip.org> - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <errno.h> -#include <fcntl.h> -#ifdef unix -# include <unistd.h> -#else -# include <direct.h> -# include <io.h> -#endif - -#include "zlib.h" - -#ifdef WIN32 -# ifndef F_OK -# define F_OK (0) -# endif -# ifdef _MSC_VER -# define mkdir(dirname,mode) _mkdir(dirname) -# define strdup(str) _strdup(str) -# define unlink(fn) _unlink(fn) -# define access(path,mode) _access(path,mode) -# else -# define mkdir(dirname,mode) _mkdir(dirname) -# endif -#else -# include <utime.h> -#endif - - -/* Values used in typeflag field. */ - -#define REGTYPE '0' /* regular file */ -#define AREGTYPE '\0' /* regular file */ -#define LNKTYPE '1' /* link */ -#define SYMTYPE '2' /* reserved */ -#define CHRTYPE '3' /* character special */ -#define BLKTYPE '4' /* block special */ -#define DIRTYPE '5' /* directory */ -#define FIFOTYPE '6' /* FIFO special */ -#define CONTTYPE '7' /* reserved */ - -#define BLOCKSIZE 512 - -struct tar_header -{ /* byte offset */ - char name[100]; /* 0 */ - char mode[8]; /* 100 */ - char uid[8]; /* 108 */ - char gid[8]; /* 116 */ - char size[12]; /* 124 */ - char mtime[12]; /* 136 */ - char chksum[8]; /* 148 */ - char typeflag; /* 156 */ - char linkname[100]; /* 157 */ - char magic[6]; /* 257 */ - char version[2]; /* 263 */ - char uname[32]; /* 265 */ - char gname[32]; /* 297 */ - char devmajor[8]; /* 329 */ - char devminor[8]; /* 337 */ - char prefix[155]; /* 345 */ - /* 500 */ -}; - -union tar_buffer { - char buffer[BLOCKSIZE]; - struct tar_header header; -}; - -enum { TGZ_EXTRACT = 0, TGZ_LIST }; - -static char *TGZfname OF((const char *)); -void TGZnotfound OF((const char *)); - -int getoct OF((char *, int)); -char *strtime OF((time_t *)); -int ExprMatch OF((char *,char *)); - -int makedir OF((char *)); -int matchname OF((int,int,char **,char *)); - -void error OF((const char *)); -int tar OF((gzFile, int, int, int, char **)); - -void help OF((int)); -int main OF((int, char **)); - -char *prog; - -/* This will give a benign warning */ - -static char *TGZprefix[] = { "\0", ".tgz", ".tar.gz", ".tar", NULL }; - -/* Return the real name of the TGZ archive */ -/* or NULL if it does not exist. */ - -static char *TGZfname OF((const char *fname)) -{ - static char buffer[1024]; - int origlen,i; - - strcpy(buffer,fname); - origlen = strlen(buffer); - - for (i=0; TGZprefix[i]; i++) - { - strcpy(buffer+origlen,TGZprefix[i]); - if (access(buffer,F_OK) == 0) - return buffer; - } - return NULL; -} - -/* error message for the filename */ - -void TGZnotfound OF((const char *fname)) -{ - int i; - - fprintf(stderr,"%s : couldn't find ",prog); - for (i=0;TGZprefix[i];i++) - fprintf(stderr,(TGZprefix[i+1]) ? "%s%s, " : "or %s%s\n", - fname, - TGZprefix[i]); - exit(1); -} - - -/* help functions */ - -int getoct(char *p,int width) -{ - int result = 0; - char c; - - while (width --) - { - c = *p++; - if (c == ' ') - continue; - if (c == 0) - break; - result = result * 8 + (c - '0'); - } - return result; -} - -char *strtime (time_t *t) -{ - struct tm *local; - static char result[32]; - - local = localtime(t); - sprintf(result,"%2d/%02d/%4d %02d:%02d:%02d", - local->tm_mday, local->tm_mon+1, local->tm_year+1900, - local->tm_hour, local->tm_min, local->tm_sec); - return result; -} - - -/* regular expression matching */ - -#define ISSPECIAL(c) (((c) == '*') || ((c) == '/')) - -int ExprMatch(char *string,char *expr) -{ - while (1) - { - if (ISSPECIAL(*expr)) - { - if (*expr == '/') - { - if (*string != '\\' && *string != '/') - return 0; - string ++; expr++; - } - else if (*expr == '*') - { - if (*expr ++ == 0) - return 1; - while (*++string != *expr) - if (*string == 0) - return 0; - } - } - else - { - if (*string != *expr) - return 0; - if (*expr++ == 0) - return 1; - string++; - } - } -} - -/* recursive make directory */ -/* abort if you get an ENOENT errno somewhere in the middle */ -/* e.g. ignore error "mkdir on existing directory" */ -/* */ -/* return 1 if OK */ -/* 0 on error */ - -int makedir (char *newdir) -{ - char *buffer = strdup(newdir); - char *p; - int len = strlen(buffer); - - if (len <= 0) { - free(buffer); - return 0; - } - if (buffer[len-1] == '/') { - buffer[len-1] = '\0'; - } - if (mkdir(buffer, 0775) == 0) - { - free(buffer); - return 1; - } - - p = buffer+1; - while (1) - { - char hold; - - while(*p && *p != '\\' && *p != '/') - p++; - hold = *p; - *p = 0; - if ((mkdir(buffer, 0775) == -1) && (errno == ENOENT)) - { - fprintf(stderr,"%s: couldn't create directory %s\n",prog,buffer); - free(buffer); - return 0; - } - if (hold == 0) - break; - *p++ = hold; - } - free(buffer); - return 1; -} - -int matchname (int arg,int argc,char **argv,char *fname) -{ - if (arg == argc) /* no arguments given (untgz tgzarchive) */ - return 1; - - while (arg < argc) - if (ExprMatch(fname,argv[arg++])) - return 1; - - return 0; /* ignore this for the moment being */ -} - - -/* Tar file list or extract */ - -int tar (gzFile in,int action,int arg,int argc,char **argv) -{ - union tar_buffer buffer; - int len; - int err; - int getheader = 1; - int remaining = 0; - FILE *outfile = NULL; - char fname[BLOCKSIZE]; - time_t tartime; - - if (action == TGZ_LIST) - printf(" day time size file\n" - " ---------- -------- --------- -------------------------------------\n"); - while (1) - { - len = gzread(in, &buffer, BLOCKSIZE); - if (len < 0) - error (gzerror(in, &err)); - /* - * Always expect complete blocks to process - * the tar information. - */ - if (len != BLOCKSIZE) - error("gzread: incomplete block read"); - - /* - * If we have to get a tar header - */ - if (getheader == 1) - { - /* - * if we met the end of the tar - * or the end-of-tar block, - * we are done - */ - if ((len == 0) || (buffer.header.name[0]== 0)) break; - - tartime = (time_t)getoct(buffer.header.mtime,12); - strcpy(fname,buffer.header.name); - - switch (buffer.header.typeflag) - { - case DIRTYPE: - if (action == TGZ_LIST) - printf(" %s <dir> %s\n",strtime(&tartime),fname); - if (action == TGZ_EXTRACT) - makedir(fname); - break; - case REGTYPE: - case AREGTYPE: - remaining = getoct(buffer.header.size,12); - if (action == TGZ_LIST) - printf(" %s %9d %s\n",strtime(&tartime),remaining,fname); - if (action == TGZ_EXTRACT) - { - if ((remaining) && (matchname(arg,argc,argv,fname))) - { - outfile = fopen(fname,"wb"); - if (outfile == NULL) { - /* try creating directory */ - char *p = strrchr(fname, '/'); - if (p != NULL) { - *p = '\0'; - makedir(fname); - *p = '/'; - outfile = fopen(fname,"wb"); - } - } - fprintf(stderr, - "%s %s\n", - (outfile) ? "Extracting" : "Couldn't create", - fname); - } - else - outfile = NULL; - } - /* - * could have no contents - */ - getheader = (remaining) ? 0 : 1; - break; - default: - if (action == TGZ_LIST) - printf(" %s <---> %s\n",strtime(&tartime),fname); - break; - } - } - else - { - unsigned int bytes = (remaining > BLOCKSIZE) ? BLOCKSIZE : remaining; - - if ((action == TGZ_EXTRACT) && (outfile != NULL)) - { - if (fwrite(&buffer,sizeof(char),bytes,outfile) != bytes) - { - fprintf(stderr,"%s : error writing %s skipping...\n",prog,fname); - fclose(outfile); - unlink(fname); - } - } - remaining -= bytes; - if (remaining == 0) - { - getheader = 1; - if ((action == TGZ_EXTRACT) && (outfile != NULL)) - { -#ifdef WIN32 - HANDLE hFile; - FILETIME ftm,ftLocal; - SYSTEMTIME st; - struct tm localt; - - fclose(outfile); - - localt = *localtime(&tartime); - - hFile = CreateFile(fname, GENERIC_READ | GENERIC_WRITE, - 0, NULL, OPEN_EXISTING, 0, NULL); - - st.wYear = (WORD)localt.tm_year+1900; - st.wMonth = (WORD)localt.tm_mon; - st.wDayOfWeek = (WORD)localt.tm_wday; - st.wDay = (WORD)localt.tm_mday; - st.wHour = (WORD)localt.tm_hour; - st.wMinute = (WORD)localt.tm_min; - st.wSecond = (WORD)localt.tm_sec; - st.wMilliseconds = 0; - SystemTimeToFileTime(&st,&ftLocal); - LocalFileTimeToFileTime(&ftLocal,&ftm); - SetFileTime(hFile,&ftm,NULL,&ftm); - CloseHandle(hFile); - - outfile = NULL; -#else - struct utimbuf settime; - - settime.actime = settime.modtime = tartime; - - fclose(outfile); - outfile = NULL; - utime(fname,&settime); -#endif - } - } - } - } - - if (gzclose(in) != Z_OK) - error("failed gzclose"); - - return 0; -} - - -/* =========================================================== */ - -void help(int exitval) -{ - fprintf(stderr, - "untgz v 0.1\n" - " an sample application of zlib 1.0.4\n\n" - "Usage : untgz TGZfile to extract all files\n" - " untgz TGZfile fname ... to extract selected files\n" - " untgz -l TGZfile to list archive contents\n" - " untgz -h to display this help\n\n"); - exit(exitval); -} - -void error(const char *msg) -{ - fprintf(stderr, "%s: %s\n", prog, msg); - exit(1); -} - - -/* ====================================================================== */ - -int _CRT_glob = 0; /* disable globbing of the arguments */ - -int main(int argc,char **argv) -{ - int action = TGZ_EXTRACT; - int arg = 1; - char *TGZfile; - gzFile *f; - - - prog = strrchr(argv[0],'\\'); - if (prog == NULL) - { - prog = strrchr(argv[0],'/'); - if (prog == NULL) - { - prog = strrchr(argv[0],':'); - if (prog == NULL) - prog = argv[0]; - else - prog++; - } - else - prog++; - } - else - prog++; - - if (argc == 1) - help(0); - - if (strcmp(argv[arg],"-l") == 0) - { - action = TGZ_LIST; - if (argc == ++arg) - help(0); - } - else if (strcmp(argv[arg],"-h") == 0) - { - help(0); - } - - if ((TGZfile = TGZfname(argv[arg])) == NULL) - TGZnotfound(argv[arg]); - - ++arg; - if ((action == TGZ_LIST) && (arg != argc)) - help(1); - -/* - * Process the TGZ file - */ - switch(action) - { - case TGZ_LIST: - case TGZ_EXTRACT: - f = gzopen(TGZfile,"rb"); - if (f == NULL) - { - fprintf(stderr,"%s: Couldn't gzopen %s\n", - prog, - TGZfile); - return 1; - } - exit(tar(f, action, arg, argc, argv)); - break; - - default: - error("Unknown option!"); - exit(1); - } - - return 0; -} diff --git a/zlib/contrib/visual-basic.txt b/zlib/contrib/visual-basic.txt deleted file mode 100644 index 10fb44bc593..00000000000 --- a/zlib/contrib/visual-basic.txt +++ /dev/null @@ -1,69 +0,0 @@ -See below some functions declarations for Visual Basic. - -Frequently Asked Question: - -Q: Each time I use the compress function I get the -5 error (not enough - room in the output buffer). - -A: Make sure that the length of the compressed buffer is passed by - reference ("as any"), not by value ("as long"). Also check that - before the call of compress this length is equal to the total size of - the compressed buffer and not zero. - - -From: "Jon Caruana" <jon-net@usa.net> -Subject: Re: How to port zlib declares to vb? -Date: Mon, 28 Oct 1996 18:33:03 -0600 - -Got the answer! (I haven't had time to check this but it's what I got, and -looks correct): - -He has the following routines working: - compress - uncompress - gzopen - gzwrite - gzread - gzclose - -Declares follow: (Quoted from Carlos Rios <c_rios@sonda.cl>, in Vb4 form) - -#If Win16 Then 'Use Win16 calls. -Declare Function compress Lib "ZLIB.DLL" (ByVal compr As - String, comprLen As Any, ByVal buf As String, ByVal buflen - As Long) As Integer -Declare Function uncompress Lib "ZLIB.DLL" (ByVal uncompr - As String, uncomprLen As Any, ByVal compr As String, ByVal - lcompr As Long) As Integer -Declare Function gzopen Lib "ZLIB.DLL" (ByVal filePath As - String, ByVal mode As String) As Long -Declare Function gzread Lib "ZLIB.DLL" (ByVal file As - Long, ByVal uncompr As String, ByVal uncomprLen As Integer) - As Integer -Declare Function gzwrite Lib "ZLIB.DLL" (ByVal file As - Long, ByVal uncompr As String, ByVal uncomprLen As Integer) - As Integer -Declare Function gzclose Lib "ZLIB.DLL" (ByVal file As - Long) As Integer -#Else -Declare Function compress Lib "ZLIB32.DLL" - (ByVal compr As String, comprLen As Any, ByVal buf As - String, ByVal buflen As Long) As Integer -Declare Function uncompress Lib "ZLIB32.DLL" - (ByVal uncompr As String, uncomprLen As Any, ByVal compr As - String, ByVal lcompr As Long) As Long -Declare Function gzopen Lib "ZLIB32.DLL" - (ByVal file As String, ByVal mode As String) As Long -Declare Function gzread Lib "ZLIB32.DLL" - (ByVal file As Long, ByVal uncompr As String, ByVal - uncomprLen As Long) As Long -Declare Function gzwrite Lib "ZLIB32.DLL" - (ByVal file As Long, ByVal uncompr As String, ByVal - uncomprLen As Long) As Long -Declare Function gzclose Lib "ZLIB32.DLL" - (ByVal file As Long) As Long -#End If - --Jon Caruana -jon-net@usa.net -Microsoft Sitebuilder Network Level 1 Member - HTML Writer's Guild Member diff --git a/zlib/crc32.c b/zlib/crc32.c index 60deca2ddf4..689b2883b43 100644 --- a/zlib/crc32.c +++ b/zlib/crc32.c @@ -1,22 +1,72 @@ /* crc32.c -- compute the CRC-32 of a data stream - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + * + * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster + * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing + * tables for updating the shift register in one step with three exclusive-ors + * instead of four steps with four exclusive-ors. This results about a factor + * of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3. */ /* @(#) $Id$ */ -#include "zlib.h" +#ifdef MAKECRCH +# include <stdio.h> +# ifndef DYNAMIC_CRC_TABLE +# define DYNAMIC_CRC_TABLE +# endif /* !DYNAMIC_CRC_TABLE */ +#endif /* MAKECRCH */ + +#include "zutil.h" /* for STDC and FAR definitions */ #define local static +/* Find a four-byte integer type for crc32_little() and crc32_big(). */ +#ifndef NOBYFOUR +# ifdef STDC /* need ANSI C limits.h to determine sizes */ +# include <limits.h> +# define BYFOUR +# if (UINT_MAX == 0xffffffffUL) + typedef unsigned int u4; +# else +# if (ULONG_MAX == 0xffffffffUL) + typedef unsigned long u4; +# else +# if (USHRT_MAX == 0xffffffffUL) + typedef unsigned short u4; +# else +# undef BYFOUR /* can't find a four-byte integer type! */ +# endif +# endif +# endif +# endif /* STDC */ +#endif /* !NOBYFOUR */ + +/* Definitions for doing the crc four data bytes at a time. */ +#ifdef BYFOUR +# define REV(w) (((w)>>24)+(((w)>>8)&0xff00)+ \ + (((w)&0xff00)<<8)+(((w)&0xff)<<24)) + local unsigned long crc32_little OF((unsigned long, + const unsigned char FAR *, unsigned)); + local unsigned long crc32_big OF((unsigned long, + const unsigned char FAR *, unsigned)); +# define TBLS 8 +#else +# define TBLS 1 +#endif /* BYFOUR */ + #ifdef DYNAMIC_CRC_TABLE local int crc_table_empty = 1; -local uLongf crc_table[256]; +local unsigned long FAR crc_table[TBLS][256]; local void make_crc_table OF((void)); +#ifdef MAKECRCH + local void write_table OF((FILE *, const unsigned long FAR *)); +#endif /* MAKECRCH */ /* - Generate a table for a byte-wise 32-bit CRC calculation on the polynomial: + Generate tables for a byte-wise 32-bit CRC calculation on the polynomial: x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. Polynomials over GF(2) are represented in binary, one bit per coefficient, @@ -35,128 +85,227 @@ local void make_crc_table OF((void)); out is a one). We start with the highest power (least significant bit) of q and repeat for all eight bits of q. - The table is simply the CRC of all possible eight bit values. This is all - the information needed to generate CRC's on data a byte at a time for all - combinations of CRC register values and incoming bytes. + The first table is simply the CRC of all possible eight bit values. This is + all the information needed to generate CRCs on data a byte at a time for all + combinations of CRC register values and incoming bytes. The remaining tables + allow for word-at-a-time CRC calculation for both big-endian and little- + endian machines, where a word is four bytes. */ local void make_crc_table() { - uLong c; - int n, k; - uLong poly; /* polynomial exclusive-or pattern */ - /* terms of polynomial defining this crc (except x^32): */ - static const Byte p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; - - /* make exclusive-or pattern from polynomial (0xedb88320L) */ - poly = 0L; - for (n = 0; n < sizeof(p)/sizeof(Byte); n++) - poly |= 1L << (31 - p[n]); - - for (n = 0; n < 256; n++) - { - c = (uLong)n; - for (k = 0; k < 8; k++) - c = c & 1 ? poly ^ (c >> 1) : c >> 1; - crc_table[n] = c; - } + unsigned long c; + int n, k; + unsigned long poly; /* polynomial exclusive-or pattern */ + /* terms of polynomial defining this crc (except x^32): */ + static const unsigned char p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26}; + + /* make exclusive-or pattern from polynomial (0xedb88320UL) */ + poly = 0UL; + for (n = 0; n < sizeof(p)/sizeof(unsigned char); n++) + poly |= 1UL << (31 - p[n]); + + /* generate a crc for every 8-bit value */ + for (n = 0; n < 256; n++) { + c = (unsigned long)n; + for (k = 0; k < 8; k++) + c = c & 1 ? poly ^ (c >> 1) : c >> 1; + crc_table[0][n] = c; + } + +#ifdef BYFOUR + /* generate crc for each value followed by one, two, and three zeros, and + then the byte reversal of those as well as the first table */ + for (n = 0; n < 256; n++) { + c = crc_table[0][n]; + crc_table[4][n] = REV(c); + for (k = 1; k < 4; k++) { + c = crc_table[0][c & 0xff] ^ (c >> 8); + crc_table[k][n] = c; + crc_table[k + 4][n] = REV(c); + } + } +#endif /* BYFOUR */ + crc_table_empty = 0; + +#ifdef MAKECRCH + /* write out CRC tables to crc32.h */ + { + FILE *out; + + out = fopen("crc32.h", "w"); + if (out == NULL) return; + fprintf(out, "/* crc32.h -- tables for rapid CRC calculation\n"); + fprintf(out, " * Generated automatically by crc32.c\n */\n\n"); + fprintf(out, "local const unsigned long FAR "); + fprintf(out, "crc_table[TBLS][256] =\n{\n {\n"); + write_table(out, crc_table[0]); +# ifdef BYFOUR + fprintf(out, "#ifdef BYFOUR\n"); + for (k = 1; k < 8; k++) { + fprintf(out, " },\n {\n"); + write_table(out, crc_table[k]); + } + fprintf(out, "#endif\n"); +# endif /* BYFOUR */ + fprintf(out, " }\n};\n"); + fclose(out); + } +#endif /* MAKECRCH */ } -#else + +#ifdef MAKECRCH +local void write_table(out, table) + FILE *out; + const unsigned long FAR *table; +{ + int n; + + for (n = 0; n < 256; n++) + fprintf(out, "%s0x%08lxUL%s", n % 5 ? "" : " ", table[n], + n == 255 ? "\n" : (n % 5 == 4 ? ",\n" : ", ")); +} +#endif /* MAKECRCH */ + +#else /* !DYNAMIC_CRC_TABLE */ /* ======================================================================== - * Table of CRC-32's of all single-byte values (made by make_crc_table) + * Tables of CRC-32s of all single-byte values, made by make_crc_table(). */ -local const uLongf crc_table[256] = { - 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, - 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, - 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, - 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, - 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, - 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, - 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, - 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, - 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, - 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, - 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, - 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, - 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, - 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, - 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, - 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, - 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, - 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, - 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, - 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, - 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, - 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, - 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, - 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, - 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, - 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, - 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, - 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, - 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, - 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, - 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, - 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, - 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, - 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, - 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, - 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, - 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, - 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, - 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, - 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, - 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, - 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, - 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, - 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, - 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, - 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, - 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, - 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, - 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, - 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, - 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, - 0x2d02ef8dL -}; -#endif +#include "crc32.h" +#endif /* DYNAMIC_CRC_TABLE */ /* ========================================================================= * This function can be used by asm versions of crc32() */ -const uLongf * ZEXPORT get_crc_table() +const unsigned long FAR * ZEXPORT get_crc_table() { #ifdef DYNAMIC_CRC_TABLE if (crc_table_empty) make_crc_table(); -#endif - return (const uLongf *)crc_table; +#endif /* DYNAMIC_CRC_TABLE */ + return (const unsigned long FAR *)crc_table; } /* ========================================================================= */ -#define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8); -#define DO2(buf) DO1(buf); DO1(buf); -#define DO4(buf) DO2(buf); DO2(buf); -#define DO8(buf) DO4(buf); DO4(buf); +#define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8) +#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1 /* ========================================================================= */ -uLong ZEXPORT crc32(crc, buf, len) - uLong crc; - const Bytef *buf; - uInt len; +unsigned long ZEXPORT crc32(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + unsigned len; { - if (buf == Z_NULL) return 0L; + if (buf == Z_NULL) return 0UL; + #ifdef DYNAMIC_CRC_TABLE if (crc_table_empty) - make_crc_table(); -#endif - crc = crc ^ 0xffffffffL; - while (len >= 8) - { - DO8(buf); - len -= 8; + make_crc_table(); +#endif /* DYNAMIC_CRC_TABLE */ + +#ifdef BYFOUR + if (sizeof(void *) == sizeof(ptrdiff_t)) { + u4 endian; + + endian = 1; + if (*((unsigned char *)(&endian))) + return crc32_little(crc, buf, len); + else + return crc32_big(crc, buf, len); + } +#endif /* BYFOUR */ + crc = crc ^ 0xffffffffUL; + while (len >= 8) { + DO8; + len -= 8; } if (len) do { - DO1(buf); + DO1; } while (--len); - return crc ^ 0xffffffffL; + return crc ^ 0xffffffffUL; } + +#ifdef BYFOUR + +/* ========================================================================= */ +#define DOLIT4 c ^= *buf4++; \ + c = crc_table[3][c & 0xff] ^ crc_table[2][(c >> 8) & 0xff] ^ \ + crc_table[1][(c >> 16) & 0xff] ^ crc_table[0][c >> 24] +#define DOLIT32 DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4; DOLIT4 + +/* ========================================================================= */ +local unsigned long crc32_little(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + unsigned len; +{ + register u4 c; + register const u4 FAR *buf4; + + c = (u4)crc; + c = ~c; + while (len && ((ptrdiff_t)buf & 3)) { + c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); + len--; + } + + buf4 = (const u4 FAR *)buf; + while (len >= 32) { + DOLIT32; + len -= 32; + } + while (len >= 4) { + DOLIT4; + len -= 4; + } + buf = (const unsigned char FAR *)buf4; + + if (len) do { + c = crc_table[0][(c ^ *buf++) & 0xff] ^ (c >> 8); + } while (--len); + c = ~c; + return (unsigned long)c; +} + +/* ========================================================================= */ +#define DOBIG4 c ^= *++buf4; \ + c = crc_table[4][c & 0xff] ^ crc_table[5][(c >> 8) & 0xff] ^ \ + crc_table[6][(c >> 16) & 0xff] ^ crc_table[7][c >> 24] +#define DOBIG32 DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4; DOBIG4 + +/* ========================================================================= */ +local unsigned long crc32_big(crc, buf, len) + unsigned long crc; + const unsigned char FAR *buf; + unsigned len; +{ + register u4 c; + register const u4 FAR *buf4; + + c = REV((u4)crc); + c = ~c; + while (len && ((ptrdiff_t)buf & 3)) { + c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); + len--; + } + + buf4 = (const u4 FAR *)buf; + buf4--; + while (len >= 32) { + DOBIG32; + len -= 32; + } + while (len >= 4) { + DOBIG4; + len -= 4; + } + buf4++; + buf = (const unsigned char FAR *)buf4; + + if (len) do { + c = crc_table[4][(c >> 24) ^ *buf++] ^ (c << 8); + } while (--len); + c = ~c; + return (unsigned long)(REV(c)); +} + +#endif /* BYFOUR */ diff --git a/zlib/crc32.h b/zlib/crc32.h new file mode 100644 index 00000000000..8053b6117c0 --- /dev/null +++ b/zlib/crc32.h @@ -0,0 +1,441 @@ +/* crc32.h -- tables for rapid CRC calculation + * Generated automatically by crc32.c + */ + +local const unsigned long FAR crc_table[TBLS][256] = +{ + { + 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL, + 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL, + 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL, + 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL, + 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL, + 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL, + 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL, + 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL, + 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL, + 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL, + 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL, + 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL, + 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL, + 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL, + 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL, + 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL, + 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL, + 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL, + 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL, + 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL, + 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL, + 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL, + 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL, + 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL, + 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL, + 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL, + 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL, + 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL, + 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL, + 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL, + 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL, + 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL, + 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL, + 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL, + 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL, + 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL, + 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL, + 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL, + 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL, + 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL, + 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL, + 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL, + 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL, + 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL, + 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL, + 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL, + 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL, + 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL, + 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL, + 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, + 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, + 0x2d02ef8dUL +#ifdef BYFOUR + }, + { + 0x00000000UL, 0x191b3141UL, 0x32366282UL, 0x2b2d53c3UL, 0x646cc504UL, + 0x7d77f445UL, 0x565aa786UL, 0x4f4196c7UL, 0xc8d98a08UL, 0xd1c2bb49UL, + 0xfaefe88aUL, 0xe3f4d9cbUL, 0xacb54f0cUL, 0xb5ae7e4dUL, 0x9e832d8eUL, + 0x87981ccfUL, 0x4ac21251UL, 0x53d92310UL, 0x78f470d3UL, 0x61ef4192UL, + 0x2eaed755UL, 0x37b5e614UL, 0x1c98b5d7UL, 0x05838496UL, 0x821b9859UL, + 0x9b00a918UL, 0xb02dfadbUL, 0xa936cb9aUL, 0xe6775d5dUL, 0xff6c6c1cUL, + 0xd4413fdfUL, 0xcd5a0e9eUL, 0x958424a2UL, 0x8c9f15e3UL, 0xa7b24620UL, + 0xbea97761UL, 0xf1e8e1a6UL, 0xe8f3d0e7UL, 0xc3de8324UL, 0xdac5b265UL, + 0x5d5daeaaUL, 0x44469febUL, 0x6f6bcc28UL, 0x7670fd69UL, 0x39316baeUL, + 0x202a5aefUL, 0x0b07092cUL, 0x121c386dUL, 0xdf4636f3UL, 0xc65d07b2UL, + 0xed705471UL, 0xf46b6530UL, 0xbb2af3f7UL, 0xa231c2b6UL, 0x891c9175UL, + 0x9007a034UL, 0x179fbcfbUL, 0x0e848dbaUL, 0x25a9de79UL, 0x3cb2ef38UL, + 0x73f379ffUL, 0x6ae848beUL, 0x41c51b7dUL, 0x58de2a3cUL, 0xf0794f05UL, + 0xe9627e44UL, 0xc24f2d87UL, 0xdb541cc6UL, 0x94158a01UL, 0x8d0ebb40UL, + 0xa623e883UL, 0xbf38d9c2UL, 0x38a0c50dUL, 0x21bbf44cUL, 0x0a96a78fUL, + 0x138d96ceUL, 0x5ccc0009UL, 0x45d73148UL, 0x6efa628bUL, 0x77e153caUL, + 0xbabb5d54UL, 0xa3a06c15UL, 0x888d3fd6UL, 0x91960e97UL, 0xded79850UL, + 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0x7c204102UL, 0x928ff410UL, 0xf7e848a8UL, 0x3d58149bUL, + 0x583fa823UL, 0xb6901d31UL, 0xd3f7a189UL, 0x6acf7614UL, 0x0fa8caacUL, + 0xe1077fbeUL, 0x8460c306UL, 0xd270a05eUL, 0xb7171ce6UL, 0x59b8a9f4UL, + 0x3cdf154cUL, 0x85e7c2d1UL, 0xe0807e69UL, 0x0e2fcb7bUL, 0x6b4877c3UL, + 0xa20f0dcbUL, 0xc768b173UL, 0x29c70461UL, 0x4ca0b8d9UL, 0xf5986f44UL, + 0x90ffd3fcUL, 0x7e5066eeUL, 0x1b37da56UL, 0x4d27b90eUL, 0x284005b6UL, + 0xc6efb0a4UL, 0xa3880c1cUL, 0x1ab0db81UL, 0x7fd76739UL, 0x9178d22bUL, + 0xf41f6e93UL, 0x03f7263bUL, 0x66909a83UL, 0x883f2f91UL, 0xed589329UL, + 0x546044b4UL, 0x3107f80cUL, 0xdfa84d1eUL, 0xbacff1a6UL, 0xecdf92feUL, + 0x89b82e46UL, 0x67179b54UL, 0x027027ecUL, 0xbb48f071UL, 0xde2f4cc9UL, + 0x3080f9dbUL, 0x55e74563UL, 0x9ca03f6bUL, 0xf9c783d3UL, 0x176836c1UL, + 0x720f8a79UL, 0xcb375de4UL, 0xae50e15cUL, 0x40ff544eUL, 0x2598e8f6UL, + 0x73888baeUL, 0x16ef3716UL, 0xf8408204UL, 0x9d273ebcUL, 0x241fe921UL, + 0x41785599UL, 0xafd7e08bUL, 0xcab05c33UL, 0x3bb659edUL, 0x5ed1e555UL, + 0xb07e5047UL, 0xd519ecffUL, 0x6c213b62UL, 0x094687daUL, 0xe7e932c8UL, + 0x828e8e70UL, 0xd49eed28UL, 0xb1f95190UL, 0x5f56e482UL, 0x3a31583aUL, + 0x83098fa7UL, 0xe66e331fUL, 0x08c1860dUL, 0x6da63ab5UL, 0xa4e140bdUL, + 0xc186fc05UL, 0x2f294917UL, 0x4a4ef5afUL, 0xf3762232UL, 0x96119e8aUL, + 0x78be2b98UL, 0x1dd99720UL, 0x4bc9f478UL, 0x2eae48c0UL, 0xc001fdd2UL, + 0xa566416aUL, 0x1c5e96f7UL, 0x79392a4fUL, 0x97969f5dUL, 0xf2f123e5UL, + 0x05196b4dUL, 0x607ed7f5UL, 0x8ed162e7UL, 0xebb6de5fUL, 0x528e09c2UL, + 0x37e9b57aUL, 0xd9460068UL, 0xbc21bcd0UL, 0xea31df88UL, 0x8f566330UL, + 0x61f9d622UL, 0x049e6a9aUL, 0xbda6bd07UL, 0xd8c101bfUL, 0x366eb4adUL, + 0x53090815UL, 0x9a4e721dUL, 0xff29cea5UL, 0x11867bb7UL, 0x74e1c70fUL, + 0xcdd91092UL, 0xa8beac2aUL, 0x46111938UL, 0x2376a580UL, 0x7566c6d8UL, + 0x10017a60UL, 0xfeaecf72UL, 0x9bc973caUL, 0x22f1a457UL, 0x479618efUL, + 0xa939adfdUL, 0xcc5e1145UL, 0x06ee4d76UL, 0x6389f1ceUL, 0x8d2644dcUL, + 0xe841f864UL, 0x51792ff9UL, 0x341e9341UL, 0xdab12653UL, 0xbfd69aebUL, + 0xe9c6f9b3UL, 0x8ca1450bUL, 0x620ef019UL, 0x07694ca1UL, 0xbe519b3cUL, + 0xdb362784UL, 0x35999296UL, 0x50fe2e2eUL, 0x99b95426UL, 0xfcdee89eUL, + 0x12715d8cUL, 0x7716e134UL, 0xce2e36a9UL, 0xab498a11UL, 0x45e63f03UL, + 0x208183bbUL, 0x7691e0e3UL, 0x13f65c5bUL, 0xfd59e949UL, 0x983e55f1UL, + 0x2106826cUL, 0x44613ed4UL, 0xaace8bc6UL, 0xcfa9377eUL, 0x38417fd6UL, + 0x5d26c36eUL, 0xb389767cUL, 0xd6eecac4UL, 0x6fd61d59UL, 0x0ab1a1e1UL, + 0xe41e14f3UL, 0x8179a84bUL, 0xd769cb13UL, 0xb20e77abUL, 0x5ca1c2b9UL, + 0x39c67e01UL, 0x80fea99cUL, 0xe5991524UL, 0x0b36a036UL, 0x6e511c8eUL, + 0xa7166686UL, 0xc271da3eUL, 0x2cde6f2cUL, 0x49b9d394UL, 0xf0810409UL, + 0x95e6b8b1UL, 0x7b490da3UL, 0x1e2eb11bUL, 0x483ed243UL, 0x2d596efbUL, + 0xc3f6dbe9UL, 0xa6916751UL, 0x1fa9b0ccUL, 0x7ace0c74UL, 0x9461b966UL, + 0xf10605deUL +#endif + } +}; diff --git a/zlib/deflate.c b/zlib/deflate.c index 16ebdade3f1..0525b2f33ca 100644 --- a/zlib/deflate.c +++ b/zlib/deflate.c @@ -1,6 +1,6 @@ /* deflate.c -- compress data using the deflation algorithm - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @@ -37,7 +37,7 @@ * REFERENCES * * Deutsch, L.P.,"DEFLATE Compressed Data Format Specification". - * Available in ftp://ds.internic.net/rfc/rfc1951.txt + * Available in http://www.ietf.org/rfc/rfc1951.txt * * A description of the Rabin and Karp algorithm is given in the book * "Algorithms" by R. Sedgewick, Addison-Wesley, p252. @@ -52,7 +52,7 @@ #include "deflate.h" const char deflate_copyright[] = - " deflate 1.1.4 Copyright 1995-2002 Jean-loup Gailly "; + " deflate 1.2.1 Copyright 1995-2003 Jean-loup Gailly "; /* If you use the zlib library in a product, an acknowledgment is welcome in the documentation of your product. If for some reason you cannot @@ -76,17 +76,22 @@ typedef block_state (*compress_func) OF((deflate_state *s, int flush)); local void fill_window OF((deflate_state *s)); local block_state deflate_stored OF((deflate_state *s, int flush)); local block_state deflate_fast OF((deflate_state *s, int flush)); +#ifndef FASTEST local block_state deflate_slow OF((deflate_state *s, int flush)); +#endif local void lm_init OF((deflate_state *s)); local void putShortMSB OF((deflate_state *s, uInt b)); local void flush_pending OF((z_streamp strm)); local int read_buf OF((z_streamp strm, Bytef *buf, unsigned size)); +#ifndef FASTEST #ifdef ASMV void match_init OF((void)); /* asm code initialization */ uInt longest_match OF((deflate_state *s, IPos cur_match)); #else local uInt longest_match OF((deflate_state *s, IPos cur_match)); #endif +#endif +local uInt longest_match_fast OF((deflate_state *s, IPos cur_match)); #ifdef DEBUG local void check_match OF((deflate_state *s, IPos start, IPos match, @@ -123,10 +128,16 @@ typedef struct config_s { compress_func func; } config; +#ifdef FASTEST +local const config configuration_table[2] = { +/* good lazy nice chain */ +/* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ +/* 1 */ {4, 4, 8, 4, deflate_fast}}; /* max speed, no lazy matches */ +#else local const config configuration_table[10] = { /* good lazy nice chain */ /* 0 */ {0, 0, 0, 0, deflate_stored}, /* store only */ -/* 1 */ {4, 4, 8, 4, deflate_fast}, /* maximum speed, no lazy matches */ +/* 1 */ {4, 4, 8, 4, deflate_fast}, /* max speed, no lazy matches */ /* 2 */ {4, 5, 16, 8, deflate_fast}, /* 3 */ {4, 6, 32, 32, deflate_fast}, @@ -135,7 +146,8 @@ local const config configuration_table[10] = { /* 6 */ {8, 16, 128, 128, deflate_slow}, /* 7 */ {8, 32, 128, 256, deflate_slow}, /* 8 */ {32, 128, 258, 1024, deflate_slow}, -/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* maximum compression */ +/* 9 */ {32, 258, 258, 4096, deflate_slow}}; /* max compression */ +#endif /* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4 * For deflate_fast() (levels <= 3) good is ignored and lazy has a different @@ -145,7 +157,9 @@ local const config configuration_table[10] = { #define EQUAL 0 /* result of memcmp for equal strings */ +#ifndef NO_DUMMY_DECL struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ +#endif /* =========================================================================== * Update a hash value with the given input byte @@ -174,7 +188,7 @@ struct static_tree_desc_s {int dummy;}; /* for buggy compilers */ #else #define INSERT_STRING(s, str, match_head) \ (UPDATE_HASH(s, s->ins_h, s->window[(str) + (MIN_MATCH-1)]), \ - s->prev[(str) & s->w_mask] = match_head = s->head[s->ins_h], \ + match_head = s->prev[(str) & s->w_mask] = s->head[s->ins_h], \ s->head[s->ins_h] = (Pos)(str)) #endif @@ -194,13 +208,13 @@ int ZEXPORT deflateInit_(strm, level, version, stream_size) int stream_size; { return deflateInit2_(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, - Z_DEFAULT_STRATEGY, version, stream_size); + Z_DEFAULT_STRATEGY, version, stream_size); /* To do: ignore strm->next_in if we use it as window */ } /* ========================================================================= */ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, - version, stream_size) + version, stream_size) z_streamp strm; int level; int method; @@ -211,8 +225,8 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, int stream_size; { deflate_state *s; - int noheader = 0; - static const char* my_version = ZLIB_VERSION; + int wrap = 1; + static const char my_version[] = ZLIB_VERSION; ushf *overlay; /* We overlay pending_buf and d_buf+l_buf. This works since the average @@ -221,37 +235,45 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, if (version == Z_NULL || version[0] != my_version[0] || stream_size != sizeof(z_stream)) { - return Z_VERSION_ERROR; + return Z_VERSION_ERROR; } if (strm == Z_NULL) return Z_STREAM_ERROR; strm->msg = Z_NULL; - if (strm->zalloc == Z_NULL) { - strm->zalloc = zcalloc; - strm->opaque = (voidpf)0; + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; } - if (strm->zfree == Z_NULL) strm->zfree = zcfree; + if (strm->zfree == (free_func)0) strm->zfree = zcfree; - if (level == Z_DEFAULT_COMPRESSION) level = 6; #ifdef FASTEST - level = 1; + if (level != 0) level = 1; +#else + if (level == Z_DEFAULT_COMPRESSION) level = 6; #endif - if (windowBits < 0) { /* undocumented feature: suppress zlib header */ - noheader = 1; + if (windowBits < 0) { /* suppress zlib wrapper */ + wrap = 0; windowBits = -windowBits; } +#ifdef GZIP + else if (windowBits > 15) { + wrap = 2; /* write gzip wrapper instead */ + windowBits -= 16; + } +#endif if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method != Z_DEFLATED || - windowBits < 9 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_HUFFMAN_ONLY) { + windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || + strategy < 0 || strategy > Z_RLE) { return Z_STREAM_ERROR; } + if (windowBits == 8) windowBits = 9; /* until 256-byte window bug fixed */ s = (deflate_state *) ZALLOC(strm, 1, sizeof(deflate_state)); if (s == Z_NULL) return Z_MEM_ERROR; strm->state = (struct internal_state FAR *)s; s->strm = strm; - s->noheader = noheader; + s->wrap = wrap; s->w_bits = windowBits; s->w_size = 1 << s->w_bits; s->w_mask = s->w_size - 1; @@ -273,6 +295,7 @@ int ZEXPORT deflateInit2_(strm, level, method, windowBits, memLevel, strategy, if (s->window == Z_NULL || s->prev == Z_NULL || s->head == Z_NULL || s->pending_buf == Z_NULL) { + s->status = FINISH_STATE; strm->msg = (char*)ERR_MSG(Z_MEM_ERROR); deflateEnd (strm); return Z_MEM_ERROR; @@ -299,16 +322,19 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) IPos hash_head = 0; if (strm == Z_NULL || strm->state == Z_NULL || dictionary == Z_NULL || - strm->state->status != INIT_STATE) return Z_STREAM_ERROR; + strm->state->wrap == 2 || + (strm->state->wrap == 1 && strm->state->status != INIT_STATE)) + return Z_STREAM_ERROR; s = strm->state; - strm->adler = adler32(strm->adler, dictionary, dictLength); + if (s->wrap) + strm->adler = adler32(strm->adler, dictionary, dictLength); if (length < MIN_MATCH) return Z_OK; if (length > MAX_DIST(s)) { - length = MAX_DIST(s); + length = MAX_DIST(s); #ifndef USE_DICT_HEAD - dictionary += dictLength - length; /* use the tail of the dictionary */ + dictionary += dictLength - length; /* use the tail of the dictionary */ #endif } zmemcpy(s->window, dictionary, length); @@ -322,7 +348,7 @@ int ZEXPORT deflateSetDictionary (strm, dictionary, dictLength) s->ins_h = s->window[0]; UPDATE_HASH(s, s->ins_h, s->window[1]); for (n = 0; n <= length - MIN_MATCH; n++) { - INSERT_STRING(s, n, hash_head); + INSERT_STRING(s, n, hash_head); } if (hash_head) hash_head = 0; /* to make compiler happy */ return Z_OK; @@ -333,9 +359,11 @@ int ZEXPORT deflateReset (strm) z_streamp strm; { deflate_state *s; - + if (strm == Z_NULL || strm->state == Z_NULL || - strm->zalloc == Z_NULL || strm->zfree == Z_NULL) return Z_STREAM_ERROR; + strm->zalloc == (alloc_func)0 || strm->zfree == (free_func)0) { + return Z_STREAM_ERROR; + } strm->total_in = strm->total_out = 0; strm->msg = Z_NULL; /* use zfree if we ever allocate msg dynamically */ @@ -345,11 +373,15 @@ int ZEXPORT deflateReset (strm) s->pending = 0; s->pending_out = s->pending_buf; - if (s->noheader < 0) { - s->noheader = 0; /* was set to -1 by deflate(..., Z_FINISH); */ + if (s->wrap < 0) { + s->wrap = -s->wrap; /* was made negative by deflate(..., Z_FINISH); */ } - s->status = s->noheader ? BUSY_STATE : INIT_STATE; - strm->adler = 1; + s->status = s->wrap ? INIT_STATE : BUSY_STATE; + strm->adler = +#ifdef GZIP + s->wrap == 2 ? crc32(0L, Z_NULL, 0) : +#endif + adler32(0L, Z_NULL, 0); s->last_flush = Z_NO_FLUSH; _tr_init(s); @@ -359,6 +391,18 @@ int ZEXPORT deflateReset (strm) } /* ========================================================================= */ +int ZEXPORT deflatePrime (strm, bits, value) + z_streamp strm; + int bits; + int value; +{ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + strm->state->bi_valid = bits; + strm->state->bi_buf = (ush)(value & ((1 << bits) - 1)); + return Z_OK; +} + +/* ========================================================================= */ int ZEXPORT deflateParams(strm, level, strategy) z_streamp strm; int level; @@ -371,30 +415,73 @@ int ZEXPORT deflateParams(strm, level, strategy) if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; s = strm->state; - if (level == Z_DEFAULT_COMPRESSION) { - level = 6; - } - if (level < 0 || level > 9 || strategy < 0 || strategy > Z_HUFFMAN_ONLY) { - return Z_STREAM_ERROR; +#ifdef FASTEST + if (level != 0) level = 1; +#else + if (level == Z_DEFAULT_COMPRESSION) level = 6; +#endif + if (level < 0 || level > 9 || strategy < 0 || strategy > Z_RLE) { + return Z_STREAM_ERROR; } func = configuration_table[s->level].func; if (func != configuration_table[level].func && strm->total_in != 0) { - /* Flush the last buffer: */ - err = deflate(strm, Z_PARTIAL_FLUSH); + /* Flush the last buffer: */ + err = deflate(strm, Z_PARTIAL_FLUSH); } if (s->level != level) { - s->level = level; - s->max_lazy_match = configuration_table[level].max_lazy; - s->good_match = configuration_table[level].good_length; - s->nice_match = configuration_table[level].nice_length; - s->max_chain_length = configuration_table[level].max_chain; + s->level = level; + s->max_lazy_match = configuration_table[level].max_lazy; + s->good_match = configuration_table[level].good_length; + s->nice_match = configuration_table[level].nice_length; + s->max_chain_length = configuration_table[level].max_chain; } s->strategy = strategy; return err; } /* ========================================================================= + * For the default windowBits of 15 and memLevel of 8, this function returns + * a close to exact, as well as small, upper bound on the compressed size. + * They are coded as constants here for a reason--if the #define's are + * changed, then this function needs to be changed as well. The return + * value for 15 and 8 only works for those exact settings. + * + * For any setting other than those defaults for windowBits and memLevel, + * the value returned is a conservative worst case for the maximum expansion + * resulting from using fixed blocks instead of stored blocks, which deflate + * can emit on compressed data for some combinations of the parameters. + * + * This function could be more sophisticated to provide closer upper bounds + * for every combination of windowBits and memLevel, as well as wrap. + * But even the conservative upper bound of about 14% expansion does not + * seem onerous for output buffer allocation. + */ +uLong ZEXPORT deflateBound(strm, sourceLen) + z_streamp strm; + uLong sourceLen; +{ + deflate_state *s; + uLong destLen; + + /* conservative upper bound */ + destLen = sourceLen + + ((sourceLen + 7) >> 3) + ((sourceLen + 63) >> 6) + 11; + + /* if can't get parameters, return conservative bound */ + if (strm == Z_NULL || strm->state == Z_NULL) + return destLen; + + /* if not default parameters, return conservative bound */ + s = strm->state; + if (s->w_bits != 15 || s->hash_bits != 8 + 7) + return destLen; + + /* default settings: return tight bound for that case */ + return compressBound(sourceLen); +} + +/* ========================================================================= * Put a short in the pending buffer. The 16-bit value is put in MSB order. * IN assertion: the stream state is correct and there is enough room in * pending_buf. @@ -405,7 +492,7 @@ local void putShortMSB (s, b) { put_byte(s, (Byte)(b >> 8)); put_byte(s, (Byte)(b & 0xff)); -} +} /* ========================================================================= * Flush as much pending output as possible. All deflate() output goes @@ -441,14 +528,14 @@ int ZEXPORT deflate (strm, flush) deflate_state *s; if (strm == Z_NULL || strm->state == Z_NULL || - flush > Z_FINISH || flush < 0) { + flush > Z_FINISH || flush < 0) { return Z_STREAM_ERROR; } s = strm->state; if (strm->next_out == Z_NULL || (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { + (s->status == FINISH_STATE && flush != Z_FINISH)) { ERR_RETURN(strm, Z_STREAM_ERROR); } if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR); @@ -457,48 +544,75 @@ int ZEXPORT deflate (strm, flush) old_flush = s->last_flush; s->last_flush = flush; - /* Write the zlib header */ + /* Write the header */ if (s->status == INIT_STATE) { - - uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; - uInt level_flags = (s->level-1) >> 1; - - if (level_flags > 3) level_flags = 3; - header |= (level_flags << 6); - if (s->strstart != 0) header |= PRESET_DICT; - header += 31 - (header % 31); - - s->status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s->strstart != 0) { - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); - } - strm->adler = 1L; +#ifdef GZIP + if (s->wrap == 2) { + put_byte(s, 31); + put_byte(s, 139); + put_byte(s, 8); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, s->level == 9 ? 2 : + (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2 ? + 4 : 0)); + put_byte(s, 255); + s->status = BUSY_STATE; + strm->adler = crc32(0L, Z_NULL, 0); + } + else +#endif + { + uInt header = (Z_DEFLATED + ((s->w_bits-8)<<4)) << 8; + uInt level_flags; + + if (s->strategy >= Z_HUFFMAN_ONLY || s->level < 2) + level_flags = 0; + else if (s->level < 6) + level_flags = 1; + else if (s->level == 6) + level_flags = 2; + else + level_flags = 3; + header |= (level_flags << 6); + if (s->strstart != 0) header |= PRESET_DICT; + header += 31 - (header % 31); + + s->status = BUSY_STATE; + putShortMSB(s, header); + + /* Save the adler32 of the preset dictionary: */ + if (s->strstart != 0) { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } + strm->adler = adler32(0L, Z_NULL, 0); + } } /* Flush as much pending output as possible */ if (s->pending != 0) { flush_pending(strm); if (strm->avail_out == 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: + /* Since avail_out is 0, deflate will be called again with + * more output space, but possibly with both pending and + * avail_in equal to zero. There won't be anything to do, + * but this is not an error situation so make sure we + * return OK instead of BUF_ERROR at next call of deflate: */ - s->last_flush = -1; - return Z_OK; - } + s->last_flush = -1; + return Z_OK; + } /* Make sure there is something to do and avoid duplicate consecutive * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUFF_ERROR. + * returning Z_STREAM_END instead of Z_BUF_ERROR. */ } else if (strm->avail_in == 0 && flush <= old_flush && - flush != Z_FINISH) { + flush != Z_FINISH) { ERR_RETURN(strm, Z_BUF_ERROR); } @@ -513,24 +627,24 @@ int ZEXPORT deflate (strm, flush) (flush != Z_NO_FLUSH && s->status != FINISH_STATE)) { block_state bstate; - bstate = (*(configuration_table[s->level].func))(s, flush); + bstate = (*(configuration_table[s->level].func))(s, flush); if (bstate == finish_started || bstate == finish_done) { s->status = FINISH_STATE; } if (bstate == need_more || bstate == finish_started) { - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR next call, see above */ + } + return Z_OK; + /* If flush != Z_NO_FLUSH && avail_out == 0, the next call + * of deflate should use the same flush parameter to make sure + * that the flush is complete. So we don't have to output an + * empty block here, this will be done at next call. This also + * ensures that for a very small output buffer, we emit at most + * one empty block. + */ + } if (bstate == block_done) { if (flush == Z_PARTIAL_FLUSH) { _tr_align(s); @@ -544,25 +658,40 @@ int ZEXPORT deflate (strm, flush) } } flush_pending(strm); - if (strm->avail_out == 0) { - s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } + if (strm->avail_out == 0) { + s->last_flush = -1; /* avoid BUF_ERROR at next call, see above */ + return Z_OK; + } } } Assert(strm->avail_out > 0, "bug2"); if (flush != Z_FINISH) return Z_OK; - if (s->noheader) return Z_STREAM_END; - - /* Write the zlib trailer (adler32) */ - putShortMSB(s, (uInt)(strm->adler >> 16)); - putShortMSB(s, (uInt)(strm->adler & 0xffff)); + if (s->wrap <= 0) return Z_STREAM_END; + + /* Write the trailer */ +#ifdef GZIP + if (s->wrap == 2) { + put_byte(s, (Byte)(strm->adler & 0xff)); + put_byte(s, (Byte)((strm->adler >> 8) & 0xff)); + put_byte(s, (Byte)((strm->adler >> 16) & 0xff)); + put_byte(s, (Byte)((strm->adler >> 24) & 0xff)); + put_byte(s, (Byte)(strm->total_in & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 8) & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 16) & 0xff)); + put_byte(s, (Byte)((strm->total_in >> 24) & 0xff)); + } + else +#endif + { + putShortMSB(s, (uInt)(strm->adler >> 16)); + putShortMSB(s, (uInt)(strm->adler & 0xffff)); + } flush_pending(strm); /* If avail_out is zero, the application will call deflate again * to flush the rest. */ - s->noheader = -1; /* write the trailer only once! */ + if (s->wrap > 0) s->wrap = -s->wrap; /* write the trailer only once! */ return s->pending != 0 ? Z_OK : Z_STREAM_END; } @@ -576,7 +705,7 @@ int ZEXPORT deflateEnd (strm) status = strm->state->status; if (status != INIT_STATE && status != BUSY_STATE && - status != FINISH_STATE) { + status != FINISH_STATE) { return Z_STREAM_ERROR; } @@ -649,7 +778,7 @@ int ZEXPORT deflateCopy (dest, source) ds->bl_desc.dyn_tree = ds->bl_tree; return Z_OK; -#endif +#endif /* MAXSEG_64K */ } /* =========================================================================== @@ -671,9 +800,14 @@ local int read_buf(strm, buf, size) strm->avail_in -= len; - if (!strm->state->noheader) { + if (strm->state->wrap == 1) { strm->adler = adler32(strm->adler, strm->next_in, len); } +#ifdef GZIP + else if (strm->state->wrap == 2) { + strm->adler = crc32(strm->adler, strm->next_in, len); + } +#endif zmemcpy(buf, strm->next_in, len); strm->next_in += len; strm->total_in += len; @@ -709,6 +843,7 @@ local void lm_init (s) #endif } +#ifndef FASTEST /* =========================================================================== * Set match_start to the longest match starting at the given string and * return its length. Matches shorter or equal to prev_length are discarded, @@ -722,7 +857,6 @@ local void lm_init (s) /* For 80x86 and 680x0, an optimized version will be provided in match.asm or * match.S. The code will be functionally equivalent. */ -#ifndef FASTEST local uInt longest_match(s, cur_match) deflate_state *s; IPos cur_match; /* current match */ @@ -860,12 +994,13 @@ local uInt longest_match(s, cur_match) if ((uInt)best_len <= s->lookahead) return (uInt)best_len; return s->lookahead; } +#endif /* ASMV */ +#endif /* FASTEST */ -#else /* FASTEST */ /* --------------------------------------------------------------------------- - * Optimized version for level == 1 only + * Optimized version for level == 1 or strategy == Z_RLE only */ -local uInt longest_match(s, cur_match) +local uInt longest_match_fast(s, cur_match) deflate_state *s; IPos cur_match; /* current match */ { @@ -903,10 +1038,10 @@ local uInt longest_match(s, cur_match) */ do { } while (*++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - *++scan == *++match && *++scan == *++match && - scan < strend); + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + *++scan == *++match && *++scan == *++match && + scan < strend); Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); @@ -915,10 +1050,8 @@ local uInt longest_match(s, cur_match) if (len < MIN_MATCH) return MIN_MATCH - 1; s->match_start = cur_match; - return len <= s->lookahead ? len : s->lookahead; + return (uInt)len <= s->lookahead ? (uInt)len : s->lookahead; } -#endif /* FASTEST */ -#endif /* ASMV */ #ifdef DEBUG /* =========================================================================== @@ -933,10 +1066,10 @@ local void check_match(s, start, match, length) if (zmemcmp(s->window + match, s->window + start, length) != EQUAL) { fprintf(stderr, " start %u, match %u, length %d\n", - start, match, length); + start, match, length); do { - fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); - } while (--length != 0); + fprintf(stderr, "%c%c", s->window[match++], s->window[start++]); + } while (--length != 0); z_error("invalid match"); } if (z_verbose > 1) { @@ -946,7 +1079,7 @@ local void check_match(s, start, match, length) } #else # define check_match(s, start, match, length) -#endif +#endif /* DEBUG */ /* =========================================================================== * Fill the window when the lookahead becomes insufficient. @@ -970,19 +1103,22 @@ local void fill_window(s) more = (unsigned)(s->window_size -(ulg)s->lookahead -(ulg)s->strstart); /* Deal with !@#$% 64K limit: */ - if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - more = wsize; + if (sizeof(int) <= 2) { + if (more == 0 && s->strstart == 0 && s->lookahead == 0) { + more = wsize; - } else if (more == (unsigned)(-1)) { - /* Very unlikely, but possible on 16 bit machine if strstart == 0 - * and lookahead == 1 (input done one byte at time) - */ - more--; + } else if (more == (unsigned)(-1)) { + /* Very unlikely, but possible on 16 bit machine if + * strstart == 0 && lookahead == 1 (input done a byte at time) + */ + more--; + } + } /* If the window is almost full and there is insufficient lookahead, * move the upper half to the lower one to make room in the upper half. */ - } else if (s->strstart >= wsize+MAX_DIST(s)) { + if (s->strstart >= wsize+MAX_DIST(s)) { zmemcpy(s->window, s->window+wsize, (unsigned)wsize); s->match_start -= wsize; @@ -995,23 +1131,23 @@ local void fill_window(s) later. (Using level 0 permanently is not an optimal usage of zlib, so we don't care about this pathological case.) */ - n = s->hash_size; - p = &s->head[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - } while (--n); - - n = wsize; + n = s->hash_size; + p = &s->head[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + } while (--n); + + n = wsize; #ifndef FASTEST - p = &s->prev[n]; - do { - m = *--p; - *p = (Pos)(m >= wsize ? m-wsize : NIL); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); + p = &s->prev[n]; + do { + m = *--p; + *p = (Pos)(m >= wsize ? m-wsize : NIL); + /* If n is not on any hash chain, prev[n] is garbage but + * its value will never be used. + */ + } while (--n); #endif more += wsize; } @@ -1056,8 +1192,8 @@ local void fill_window(s) _tr_flush_block(s, (s->block_start >= 0L ? \ (charf *)&s->window[(unsigned)s->block_start] : \ (charf *)Z_NULL), \ - (ulg)((long)s->strstart - s->block_start), \ - (eof)); \ + (ulg)((long)s->strstart - s->block_start), \ + (eof)); \ s->block_start = s->strstart; \ flush_pending(s->strm); \ Tracev((stderr,"[FLUSH]")); \ @@ -1098,32 +1234,32 @@ local block_state deflate_stored(s, flush) if (s->lookahead <= 1) { Assert(s->strstart < s->w_size+MAX_DIST(s) || - s->block_start >= (long)s->w_size, "slide too late"); + s->block_start >= (long)s->w_size, "slide too late"); fill_window(s); if (s->lookahead == 0 && flush == Z_NO_FLUSH) return need_more; if (s->lookahead == 0) break; /* flush the current block */ } - Assert(s->block_start >= 0L, "block gone"); + Assert(s->block_start >= 0L, "block gone"); - s->strstart += s->lookahead; - s->lookahead = 0; + s->strstart += s->lookahead; + s->lookahead = 0; - /* Emit a stored block if pending_buf will be full: */ - max_start = s->block_start + max_block_size; + /* Emit a stored block if pending_buf will be full: */ + max_start = s->block_start + max_block_size; if (s->strstart == 0 || (ulg)s->strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s->lookahead = (uInt)(s->strstart - max_start); - s->strstart = (uInt)max_start; + /* strstart == 0 is possible when wraparound on 16-bit machine */ + s->lookahead = (uInt)(s->strstart - max_start); + s->strstart = (uInt)max_start; FLUSH_BLOCK(s, 0); - } - /* Flush if we may have to slide, otherwise block_start may become + } + /* Flush if we may have to slide, otherwise block_start may become * negative and the data will be gone: */ if (s->strstart - (uInt)s->block_start >= MAX_DIST(s)) { FLUSH_BLOCK(s, 0); - } + } } FLUSH_BLOCK(s, flush == Z_FINISH); return flush == Z_FINISH ? finish_done : block_done; @@ -1152,8 +1288,8 @@ local block_state deflate_fast(s, flush) if (s->lookahead < MIN_LOOKAHEAD) { fill_window(s); if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } + return need_more; + } if (s->lookahead == 0) break; /* flush the current block */ } @@ -1172,10 +1308,19 @@ local block_state deflate_fast(s, flush) * of window index 0 (in particular we have to avoid a match * of the string with itself at the start of the input file). */ - if (s->strategy != Z_HUFFMAN_ONLY) { +#ifdef FASTEST + if ((s->strategy < Z_HUFFMAN_ONLY) || + (s->strategy == Z_RLE && s->strstart - hash_head == 1)) { + s->match_length = longest_match_fast (s, hash_head); + } +#else + if (s->strategy < Z_HUFFMAN_ONLY) { s->match_length = longest_match (s, hash_head); + } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) { + s->match_length = longest_match_fast (s, hash_head); } - /* longest_match() sets match_start */ +#endif + /* longest_match() or longest_match_fast() sets match_start */ } if (s->match_length >= MIN_MATCH) { check_match(s, s->strstart, s->match_start, s->match_length); @@ -1191,7 +1336,7 @@ local block_state deflate_fast(s, flush) #ifndef FASTEST if (s->match_length <= s->max_insert_length && s->lookahead >= MIN_MATCH) { - s->match_length--; /* string at strstart already in hash table */ + s->match_length--; /* string at strstart already in table */ do { s->strstart++; INSERT_STRING(s, s->strstart, hash_head); @@ -1199,10 +1344,10 @@ local block_state deflate_fast(s, flush) * always MIN_MATCH bytes ahead. */ } while (--s->match_length != 0); - s->strstart++; + s->strstart++; } else #endif - { + { s->strstart += s->match_length; s->match_length = 0; s->ins_h = s->window[s->strstart]; @@ -1219,7 +1364,7 @@ local block_state deflate_fast(s, flush) Tracevv((stderr,"%c", s->window[s->strstart])); _tr_tally_lit (s, s->window[s->strstart], bflush); s->lookahead--; - s->strstart++; + s->strstart++; } if (bflush) FLUSH_BLOCK(s, 0); } @@ -1227,6 +1372,7 @@ local block_state deflate_fast(s, flush) return flush == Z_FINISH ? finish_done : block_done; } +#ifndef FASTEST /* =========================================================================== * Same as above, but achieves better compression. We use a lazy * evaluation for matches: a match is finally adopted only if there is @@ -1249,8 +1395,8 @@ local block_state deflate_slow(s, flush) if (s->lookahead < MIN_LOOKAHEAD) { fill_window(s); if (s->lookahead < MIN_LOOKAHEAD && flush == Z_NO_FLUSH) { - return need_more; - } + return need_more; + } if (s->lookahead == 0) break; /* flush the current block */ } @@ -1272,14 +1418,19 @@ local block_state deflate_slow(s, flush) * of window index 0 (in particular we have to avoid a match * of the string with itself at the start of the input file). */ - if (s->strategy != Z_HUFFMAN_ONLY) { + if (s->strategy < Z_HUFFMAN_ONLY) { s->match_length = longest_match (s, hash_head); + } else if (s->strategy == Z_RLE && s->strstart - hash_head == 1) { + s->match_length = longest_match_fast (s, hash_head); } - /* longest_match() sets match_start */ + /* longest_match() or longest_match_fast() sets match_start */ - if (s->match_length <= 5 && (s->strategy == Z_FILTERED || - (s->match_length == MIN_MATCH && - s->strstart - s->match_start > TOO_FAR))) { + if (s->match_length <= 5 && (s->strategy == Z_FILTERED +#if TOO_FAR <= 32767 + || (s->match_length == MIN_MATCH && + s->strstart - s->match_start > TOO_FAR) +#endif + )) { /* If prev_match is also MIN_MATCH, match_start is garbage * but we will ignore the current match anyway. @@ -1297,7 +1448,7 @@ local block_state deflate_slow(s, flush) check_match(s, s->strstart-1, s->prev_match, s->prev_length); _tr_tally_dist(s, s->strstart -1 - s->prev_match, - s->prev_length - MIN_MATCH, bflush); + s->prev_length - MIN_MATCH, bflush); /* Insert in hash table all strings up to the end of the match. * strstart-1 and strstart are already inserted. If there is not @@ -1323,8 +1474,8 @@ local block_state deflate_slow(s, flush) * is longer, truncate the previous match to a single literal. */ Tracevv((stderr,"%c", s->window[s->strstart-1])); - _tr_tally_lit(s, s->window[s->strstart-1], bflush); - if (bflush) { + _tr_tally_lit(s, s->window[s->strstart-1], bflush); + if (bflush) { FLUSH_BLOCK_ONLY(s, 0); } s->strstart++; @@ -1348,3 +1499,4 @@ local block_state deflate_slow(s, flush) FLUSH_BLOCK(s, flush == Z_FINISH); return flush == Z_FINISH ? finish_done : block_done; } +#endif /* FASTEST */ diff --git a/zlib/deflate.h b/zlib/deflate.h index b99a48a5214..e31f66be521 100644 --- a/zlib/deflate.h +++ b/zlib/deflate.h @@ -1,6 +1,6 @@ /* deflate.h -- internal compression state * Copyright (C) 1995-2002 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h + * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is @@ -10,11 +10,19 @@ /* @(#) $Id$ */ -#ifndef _DEFLATE_H -#define _DEFLATE_H +#ifndef DEFLATE_H +#define DEFLATE_H #include "zutil.h" +/* define NO_GZIP when compiling if you want to disable gzip header and + trailer creation by deflate(). NO_GZIP would be used to avoid linking in + the crc code when it is not needed. For shared libraries, gzip encoding + should be left enabled. */ +#ifndef NO_GZIP +# define GZIP +#endif + /* =========================================================================== * Internal compression state. */ @@ -86,7 +94,7 @@ typedef struct internal_state { ulg pending_buf_size; /* size of pending_buf */ Bytef *pending_out; /* next pending byte to output to the stream */ int pending; /* nb of bytes in the pending buffer */ - int noheader; /* suppress zlib header and adler32 */ + int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ Byte data_type; /* UNKNOWN, BINARY or ASCII */ Byte method; /* STORED (for zip only) or DEFLATED */ int last_flush; /* value of flush param for previous deflate call */ @@ -269,7 +277,7 @@ typedef struct internal_state { void _tr_init OF((deflate_state *s)); int _tr_tally OF((deflate_state *s, unsigned dist, unsigned lc)); void _tr_flush_block OF((deflate_state *s, charf *buf, ulg stored_len, - int eof)); + int eof)); void _tr_align OF((deflate_state *s)); void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, int eof)); @@ -312,7 +320,7 @@ void _tr_stored_block OF((deflate_state *s, charf *buf, ulg stored_len, #else # define _tr_tally_lit(s, c, flush) flush = _tr_tally(s, 0, c) # define _tr_tally_dist(s, distance, length, flush) \ - flush = _tr_tally(s, distance, length) + flush = _tr_tally(s, distance, length) #endif -#endif +#endif /* DEFLATE_H */ diff --git a/zlib/descrip.mms b/zlib/descrip.mms deleted file mode 100644 index 9d364598a27..00000000000 --- a/zlib/descrip.mms +++ /dev/null @@ -1,48 +0,0 @@ -# descrip.mms: MMS description file for building zlib on VMS -# written by Martin P.J. Zinser <m.zinser@gsi.de> - -cc_defs = -c_deb = - -.ifdef __DECC__ -pref = /prefix=all -.endif - -OBJS = adler32.obj, compress.obj, crc32.obj, gzio.obj, uncompr.obj,\ - deflate.obj, trees.obj, zutil.obj, inflate.obj, infblock.obj,\ - inftrees.obj, infcodes.obj, infutil.obj, inffast.obj - -CFLAGS= $(C_DEB) $(CC_DEFS) $(PREF) - -all : example.exe minigzip.exe - @ write sys$output " Example applications available" -libz.olb : libz.olb($(OBJS)) - @ write sys$output " libz available" - -example.exe : example.obj libz.olb - link example,libz.olb/lib - -minigzip.exe : minigzip.obj libz.olb - link minigzip,libz.olb/lib,x11vms:xvmsutils.olb/lib - -clean : - delete *.obj;*,libz.olb;* - - -# Other dependencies. -adler32.obj : zutil.h zlib.h zconf.h -compress.obj : zlib.h zconf.h -crc32.obj : zutil.h zlib.h zconf.h -deflate.obj : deflate.h zutil.h zlib.h zconf.h -example.obj : zlib.h zconf.h -gzio.obj : zutil.h zlib.h zconf.h -infblock.obj : zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h -infcodes.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h infcodes.h inffast.h -inffast.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h -inflate.obj : zutil.h zlib.h zconf.h infblock.h -inftrees.obj : zutil.h zlib.h zconf.h inftrees.h -infutil.obj : zutil.h zlib.h zconf.h inftrees.h infutil.h -minigzip.obj : zlib.h zconf.h -trees.obj : deflate.h zutil.h zlib.h zconf.h -uncompr.obj : zlib.h zconf.h -zutil.obj : zutil.h zlib.h zconf.h diff --git a/zlib/example.c b/zlib/example.c deleted file mode 100644 index e7e3673333e..00000000000 --- a/zlib/example.c +++ /dev/null @@ -1,556 +0,0 @@ -/* example.c -- usage example of the zlib compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* @(#) $Id$ */ - -#include <stdio.h> -#include "zlib.h" - -#ifdef STDC -# include <string.h> -# include <stdlib.h> -#else - extern void exit OF((int)); -#endif - -#if defined(VMS) || defined(RISCOS) -# define TESTFILE "foo-gz" -#else -# define TESTFILE "foo.gz" -#endif - -#define CHECK_ERR(err, msg) { \ - if (err != Z_OK) { \ - fprintf(stderr, "%s error: %d\n", msg, err); \ - exit(1); \ - } \ -} - -const char hello[] = "hello, hello!"; -/* "hello world" would be more standard, but the repeated "hello" - * stresses the compression code better, sorry... - */ - -const char dictionary[] = "hello"; -uLong dictId; /* Adler32 value of the dictionary */ - -void test_compress OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_gzio OF((const char *out, const char *in, - Byte *uncompr, int uncomprLen)); -void test_deflate OF((Byte *compr, uLong comprLen)); -void test_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_large_deflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_large_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_flush OF((Byte *compr, uLong *comprLen)); -void test_sync OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -void test_dict_deflate OF((Byte *compr, uLong comprLen)); -void test_dict_inflate OF((Byte *compr, uLong comprLen, - Byte *uncompr, uLong uncomprLen)); -int main OF((int argc, char *argv[])); - -/* =========================================================================== - * Test compress() and uncompress() - */ -void test_compress(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - uLong len = strlen(hello)+1; - - err = compress(compr, &comprLen, (const Bytef*)hello, len); - CHECK_ERR(err, "compress"); - - strcpy((char*)uncompr, "garbage"); - - err = uncompress(uncompr, &uncomprLen, compr, comprLen); - CHECK_ERR(err, "uncompress"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad uncompress\n"); - exit(1); - } else { - printf("uncompress(): %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Test read/write of .gz files - */ -void test_gzio(out, in, uncompr, uncomprLen) - const char *out; /* compressed output file */ - const char *in; /* compressed input file */ - Byte *uncompr; - int uncomprLen; -{ - int err; - int len = strlen(hello)+1; - gzFile file; - z_off_t pos; - - file = gzopen(out, "wb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - exit(1); - } - gzputc(file, 'h'); - if (gzputs(file, "ello") != 4) { - fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err)); - exit(1); - } - if (gzprintf(file, ", %s!", "hello") != 8) { - fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err)); - exit(1); - } - gzseek(file, 1L, SEEK_CUR); /* add one zero byte */ - gzclose(file); - - file = gzopen(in, "rb"); - if (file == NULL) { - fprintf(stderr, "gzopen error\n"); - } - strcpy((char*)uncompr, "garbage"); - - uncomprLen = gzread(file, uncompr, (unsigned)uncomprLen); - if (uncomprLen != len) { - fprintf(stderr, "gzread err: %s\n", gzerror(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad gzread: %s\n", (char*)uncompr); - exit(1); - } else { - printf("gzread(): %s\n", (char *)uncompr); - } - - pos = gzseek(file, -8L, SEEK_CUR); - if (pos != 6 || gztell(file) != pos) { - fprintf(stderr, "gzseek error, pos=%ld, gztell=%ld\n", - (long)pos, (long)gztell(file)); - exit(1); - } - - if (gzgetc(file) != ' ') { - fprintf(stderr, "gzgetc error\n"); - exit(1); - } - - gzgets(file, (char*)uncompr, uncomprLen); - uncomprLen = strlen((char*)uncompr); - if (uncomprLen != 6) { /* "hello!" */ - fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err)); - exit(1); - } - if (strcmp((char*)uncompr, hello+7)) { - fprintf(stderr, "bad gzgets after gzseek\n"); - exit(1); - } else { - printf("gzgets() after gzseek: %s\n", (char *)uncompr); - } - - gzclose(file); -} - -/* =========================================================================== - * Test deflate() with small buffers - */ -void test_deflate(compr, comprLen) - Byte *compr; - uLong comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - int len = strlen(hello)+1; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_in = (Bytef*)hello; - c_stream.next_out = compr; - - while (c_stream.total_in != (uLong)len && c_stream.total_out < comprLen) { - c_stream.avail_in = c_stream.avail_out = 1; /* force small buffers */ - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - } - /* Finish the stream, still forcing small buffers: */ - for (;;) { - c_stream.avail_out = 1; - err = deflate(&c_stream, Z_FINISH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "deflate"); - } - - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with small buffers - */ -void test_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = 0; - d_stream.next_out = uncompr; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - while (d_stream.total_out < uncomprLen && d_stream.total_in < comprLen) { - d_stream.avail_in = d_stream.avail_out = 1; /* force small buffers */ - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "inflate"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad inflate\n"); - exit(1); - } else { - printf("inflate(): %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Test deflate() with large buffers and dynamic change of compression level - */ -void test_large_deflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_BEST_SPEED); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_out = compr; - c_stream.avail_out = (uInt)comprLen; - - /* At this point, uncompr is still mostly zeroes, so it should compress - * very well: - */ - c_stream.next_in = uncompr; - c_stream.avail_in = (uInt)uncomprLen; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - if (c_stream.avail_in != 0) { - fprintf(stderr, "deflate not greedy\n"); - exit(1); - } - - /* Feed in already compressed data and switch to no compression: */ - deflateParams(&c_stream, Z_NO_COMPRESSION, Z_DEFAULT_STRATEGY); - c_stream.next_in = compr; - c_stream.avail_in = (uInt)comprLen/2; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - - /* Switch back to compressing mode: */ - deflateParams(&c_stream, Z_BEST_COMPRESSION, Z_FILTERED); - c_stream.next_in = uncompr; - c_stream.avail_in = (uInt)uncomprLen; - err = deflate(&c_stream, Z_NO_FLUSH); - CHECK_ERR(err, "deflate"); - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with large buffers - */ -void test_large_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = (uInt)comprLen; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - for (;;) { - d_stream.next_out = uncompr; /* discard the output */ - d_stream.avail_out = (uInt)uncomprLen; - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - CHECK_ERR(err, "large inflate"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (d_stream.total_out != 2*uncomprLen + comprLen/2) { - fprintf(stderr, "bad large inflate: %ld\n", d_stream.total_out); - exit(1); - } else { - printf("large_inflate(): OK\n"); - } -} - -/* =========================================================================== - * Test deflate() with full flush - */ -void test_flush(compr, comprLen) - Byte *compr; - uLong *comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - int len = strlen(hello)+1; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - c_stream.next_in = (Bytef*)hello; - c_stream.next_out = compr; - c_stream.avail_in = 3; - c_stream.avail_out = (uInt)*comprLen; - err = deflate(&c_stream, Z_FULL_FLUSH); - CHECK_ERR(err, "deflate"); - - compr[3]++; /* force an error in first compressed block */ - c_stream.avail_in = len - 3; - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - CHECK_ERR(err, "deflate"); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); - - *comprLen = c_stream.total_out; -} - -/* =========================================================================== - * Test inflateSync() - */ -void test_sync(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = 2; /* just read the zlib header */ - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - d_stream.next_out = uncompr; - d_stream.avail_out = (uInt)uncomprLen; - - inflate(&d_stream, Z_NO_FLUSH); - CHECK_ERR(err, "inflate"); - - d_stream.avail_in = (uInt)comprLen-2; /* read all compressed data */ - err = inflateSync(&d_stream); /* but skip the damaged part */ - CHECK_ERR(err, "inflateSync"); - - err = inflate(&d_stream, Z_FINISH); - if (err != Z_DATA_ERROR) { - fprintf(stderr, "inflate should report DATA_ERROR\n"); - /* Because of incorrect adler32 */ - exit(1); - } - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - printf("after inflateSync(): hel%s\n", (char *)uncompr); -} - -/* =========================================================================== - * Test deflate() with preset dictionary - */ -void test_dict_deflate(compr, comprLen) - Byte *compr; - uLong comprLen; -{ - z_stream c_stream; /* compression stream */ - int err; - - c_stream.zalloc = (alloc_func)0; - c_stream.zfree = (free_func)0; - c_stream.opaque = (voidpf)0; - - err = deflateInit(&c_stream, Z_BEST_COMPRESSION); - CHECK_ERR(err, "deflateInit"); - - err = deflateSetDictionary(&c_stream, - (const Bytef*)dictionary, sizeof(dictionary)); - CHECK_ERR(err, "deflateSetDictionary"); - - dictId = c_stream.adler; - c_stream.next_out = compr; - c_stream.avail_out = (uInt)comprLen; - - c_stream.next_in = (Bytef*)hello; - c_stream.avail_in = (uInt)strlen(hello)+1; - - err = deflate(&c_stream, Z_FINISH); - if (err != Z_STREAM_END) { - fprintf(stderr, "deflate should report Z_STREAM_END\n"); - exit(1); - } - err = deflateEnd(&c_stream); - CHECK_ERR(err, "deflateEnd"); -} - -/* =========================================================================== - * Test inflate() with a preset dictionary - */ -void test_dict_inflate(compr, comprLen, uncompr, uncomprLen) - Byte *compr, *uncompr; - uLong comprLen, uncomprLen; -{ - int err; - z_stream d_stream; /* decompression stream */ - - strcpy((char*)uncompr, "garbage"); - - d_stream.zalloc = (alloc_func)0; - d_stream.zfree = (free_func)0; - d_stream.opaque = (voidpf)0; - - d_stream.next_in = compr; - d_stream.avail_in = (uInt)comprLen; - - err = inflateInit(&d_stream); - CHECK_ERR(err, "inflateInit"); - - d_stream.next_out = uncompr; - d_stream.avail_out = (uInt)uncomprLen; - - for (;;) { - err = inflate(&d_stream, Z_NO_FLUSH); - if (err == Z_STREAM_END) break; - if (err == Z_NEED_DICT) { - if (d_stream.adler != dictId) { - fprintf(stderr, "unexpected dictionary"); - exit(1); - } - err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary, - sizeof(dictionary)); - } - CHECK_ERR(err, "inflate with dict"); - } - - err = inflateEnd(&d_stream); - CHECK_ERR(err, "inflateEnd"); - - if (strcmp((char*)uncompr, hello)) { - fprintf(stderr, "bad inflate with dict\n"); - exit(1); - } else { - printf("inflate with dictionary: %s\n", (char *)uncompr); - } -} - -/* =========================================================================== - * Usage: example [output.gz [input.gz]] - */ - -int main(argc, argv) - int argc; - char *argv[]; -{ - Byte *compr, *uncompr; - uLong comprLen = 10000*sizeof(int); /* don't overflow on MSDOS */ - uLong uncomprLen = comprLen; - static const char* myVersion = ZLIB_VERSION; - - if (zlibVersion()[0] != myVersion[0]) { - fprintf(stderr, "incompatible zlib version\n"); - exit(1); - - } else if (strcmp(zlibVersion(), ZLIB_VERSION) != 0) { - fprintf(stderr, "warning: different zlib version\n"); - } - - compr = (Byte*)calloc((uInt)comprLen, 1); - uncompr = (Byte*)calloc((uInt)uncomprLen, 1); - /* compr and uncompr are cleared to avoid reading uninitialized - * data and to ensure that uncompr compresses well. - */ - if (compr == Z_NULL || uncompr == Z_NULL) { - printf("out of memory\n"); - exit(1); - } - test_compress(compr, comprLen, uncompr, uncomprLen); - - test_gzio((argc > 1 ? argv[1] : TESTFILE), - (argc > 2 ? argv[2] : TESTFILE), - uncompr, (int)uncomprLen); - - test_deflate(compr, comprLen); - test_inflate(compr, comprLen, uncompr, uncomprLen); - - test_large_deflate(compr, comprLen, uncompr, uncomprLen); - test_large_inflate(compr, comprLen, uncompr, uncomprLen); - - test_flush(compr, &comprLen); - test_sync(compr, comprLen, uncompr, uncomprLen); - comprLen = uncomprLen; - - test_dict_deflate(compr, comprLen); - test_dict_inflate(compr, comprLen, uncompr, uncomprLen); - - exit(0); - return 0; /* to avoid warning */ -} diff --git a/zlib/faq b/zlib/faq deleted file mode 100644 index 47a7d60c6de..00000000000 --- a/zlib/faq +++ /dev/null @@ -1,100 +0,0 @@ - - Frequently Asked Questions about zlib - - -If your question is not there, please check the zlib home page -http://www.zlib.org which may have more recent information. -The lastest zlib FAQ is at http://www.gzip.org/zlib/zlib_faq.html - - - 1. Is zlib Y2K-compliant? - - Yes. zlib doesn't handle dates. - - 2. Where can I get a Windows DLL version? - - The zlib sources can be compiled without change to produce a DLL. If you - want a precompiled DLL, see http://www.winimage.com/zLibDll/ . Questions - about the zlib DLL should be sent to Gilles Vollant (info@winimage.com). - - 3. Where can I get a Visual Basic interface to zlib? - - See - * http://www.winimage.com/zLibDll/cmp-z-it.zip - * http://www.dogma.net/markn/articles/zlibtool/zlibtool.htm - * contrib/visual-basic.txt in the zlib distribution - - 4. compress() returns Z_BUF_ERROR - - Make sure that before the call of compress, the length of the compressed - buffer is equal to the total size of the compressed buffer and not - zero. For Visual Basic, check that this parameter is passed by reference - ("as any"), not by value ("as long"). - - 5. deflate() or inflate() returns Z_BUF_ERROR - - Before making the call, make sure that avail_in and avail_out are not - zero. When setting the parameter flush equal to Z_FINISH, also make sure - that avail_out is big enough to allow processing all pending input. - - 6. Where's the zlib documentation (man pages, etc.)? - - It's in zlib.h for the moment, and Francis S. Lin has converted it to a - web page zlib.html. Volunteers to transform this to Unix-style man pages, - please contact Jean-loup Gailly (jloup@gzip.org). Examples of zlib usage - are in the files example.c and minigzip.c. - - 7. Why don't you use GNU autoconf or libtool or ...? - - Because we would like to keep zlib as a very small and simple - package. zlib is rather portable and doesn't need much configuration. - - 8. I found a bug in zlib. - - Most of the time, such problems are due to an incorrect usage of - zlib. Please try to reproduce the problem with a small program and send - the corresponding source to us at zlib@gzip.org . Do not send - multi-megabyte data files without prior agreement. - - 9. Why do I get "undefined reference to gzputc"? - - If "make test" produces something like - - example.o(.text+0x154): undefined reference to `gzputc' - - check that you don't have old files libz.* in /usr/lib, /usr/local/lib or - /usr/X11R6/lib. Remove any old versions, then do "make install". - -10. I need a Delphi interface to zlib. - - See the directories contrib/delphi and contrib/delphi2 in the zlib - distribution. - -11. Can zlib handle .zip archives? - - See the directory contrib/minizip in the zlib distribution. - -12. Can zlib handle .Z files? - - No, sorry. You have to spawn an uncompress or gunzip subprocess, or adapt - the code of uncompress on your own. - -13. How can I make a Unix shared library? - - make clean - ./configure -s - make - -14. Why does "make test" fail on Mac OS X? - - Mac OS X already includes zlib as a shared library, and so -lz links the - shared library instead of the one that the "make" compiled. For zlib - 1.1.3, the two are incompatible due to different compile-time - options. Simply change the -lz in the Makefile to libz.a, and it will use - the compiled library instead of the shared one and the "make test" will - succeed. - -15. I have a question about OttoPDF - - We are not the authors of OttoPDF. The real author is on the OttoPDF web - site Joel Hainley jhainley@myndkryme.com. diff --git a/zlib/gzio.c b/zlib/gzio.c index 09e0a20b8ce..4afd102b3f3 100644 --- a/zlib/gzio.c +++ b/zlib/gzio.c @@ -1,8 +1,8 @@ /* gzio.c -- IO on .gz files - * Copyright (C) 1995-2002 Jean-loup Gailly. + * Copyright (C) 1995-2003 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h * - * Compile this file with -DNO_DEFLATE to avoid the compression code. + * Compile this file with -DNO_GZCOMPRESS to avoid the compression code. */ /* @(#) $Id$ */ @@ -11,7 +11,13 @@ #include "zutil.h" +#ifdef NO_DEFLATE /* for compatiblity with old definition */ +# define NO_GZCOMPRESS +#endif + +#ifndef NO_DUMMY_DECL struct internal_state {int dummy;}; /* for buggy compilers */ +#endif #ifndef Z_BUFSIZE # ifdef MAXSEG_64K @@ -24,10 +30,20 @@ struct internal_state {int dummy;}; /* for buggy compilers */ # define Z_PRINTF_BUFSIZE 4096 #endif +#ifdef __MVS__ +# pragma map (fdopen , "\174\174FDOPEN") + FILE *fdopen(int, const char *); +#endif + +#ifndef STDC +extern voidp malloc OF((uInt size)); +extern void free OF((voidpf ptr)); +#endif + #define ALLOC(size) malloc(size) #define TRYFREE(p) {if (p) free(p);} -static int gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ +static int const gz_magic[2] = {0x1f, 0x8b}; /* gzip magic header */ /* gzip flag byte */ #define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ @@ -49,7 +65,11 @@ typedef struct gz_stream { char *path; /* path name for debugging only */ int transparent; /* 1 if input file is not a .gz file */ char mode; /* 'w' or 'r' */ - long startpos; /* start of compressed data in file (header skipped) */ + z_off_t start; /* start of compressed data in file (header skipped) */ + z_off_t in; /* bytes into deflate or inflate */ + z_off_t out; /* bytes out of deflate or inflate */ + int back; /* one character push-back */ + int last; /* true if push-back is last character */ } gz_stream; @@ -65,7 +85,7 @@ local uLong getLong OF((gz_stream *s)); Opens a gzip (.gz) file for reading or writing. The mode parameter is as in fopen ("rb" or "wb"). The file is given either by file descriptor or path name (if fd == -1). - gz_open return NULL if the file could not be opened or if there was + gz_open returns NULL if the file could not be opened or if there was insufficient memory to allocate the (de)compression state; errno can be checked to distinguish the two cases (if errno is zero, the zlib error is Z_MEM_ERROR). @@ -97,6 +117,9 @@ local gzFile gz_open (path, mode, fd) s->file = NULL; s->z_err = Z_OK; s->z_eof = 0; + s->in = 0; + s->out = 0; + s->back = EOF; s->crc = crc32(0L, Z_NULL, 0); s->msg = NULL; s->transparent = 0; @@ -112,19 +135,21 @@ local gzFile gz_open (path, mode, fd) if (*p == 'r') s->mode = 'r'; if (*p == 'w' || *p == 'a') s->mode = 'w'; if (*p >= '0' && *p <= '9') { - level = *p - '0'; - } else if (*p == 'f') { - strategy = Z_FILTERED; - } else if (*p == 'h') { - strategy = Z_HUFFMAN_ONLY; - } else { - *m++ = *p; /* copy the mode */ - } + level = *p - '0'; + } else if (*p == 'f') { + strategy = Z_FILTERED; + } else if (*p == 'h') { + strategy = Z_HUFFMAN_ONLY; + } else if (*p == 'R') { + strategy = Z_RLE; + } else { + *m++ = *p; /* copy the mode */ + } } while (*p++ && m != fmode + sizeof(fmode)); if (s->mode == '\0') return destroy(s), (gzFile)Z_NULL; - + if (s->mode == 'w') { -#ifdef NO_DEFLATE +#ifdef NO_GZCOMPRESS err = Z_STREAM_ERROR; #else err = deflateInit2(&(s->stream), level, @@ -163,17 +188,17 @@ local gzFile gz_open (path, mode, fd) */ fprintf(s->file, "%c%c%c%c%c%c%c%c%c%c", gz_magic[0], gz_magic[1], Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE); - s->startpos = 10L; - /* We use 10L instead of ftell(s->file) to because ftell causes an + s->start = 10L; + /* We use 10L instead of ftell(s->file) to because ftell causes an * fflush on some systems. This version of the library doesn't use - * startpos anyway in write mode, so this initialization is not + * start anyway in write mode, so this initialization is not * necessary. */ } else { - check_header(s); /* skip the .gz header */ - s->startpos = (ftell(s->file) - s->stream.avail_in); + check_header(s); /* skip the .gz header */ + s->start = ftell(s->file) - s->stream.avail_in; } - + return (gzFile)s; } @@ -218,11 +243,11 @@ int ZEXPORT gzsetparams (file, level, strategy) /* Make room to allow flushing */ if (s->stream.avail_out == 0) { - s->stream.next_out = s->outbuf; - if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { - s->z_err = Z_ERRNO; - } - s->stream.avail_out = Z_BUFSIZE; + s->stream.next_out = s->outbuf; + if (fwrite(s->outbuf, 1, Z_BUFSIZE, s->file) != Z_BUFSIZE) { + s->z_err = Z_ERRNO; + } + s->stream.avail_out = Z_BUFSIZE; } return deflateParams (&(s->stream), level, strategy); @@ -238,14 +263,14 @@ local int get_byte(s) { if (s->z_eof) return EOF; if (s->stream.avail_in == 0) { - errno = 0; - s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file); - if (s->stream.avail_in == 0) { - s->z_eof = 1; - if (ferror(s->file)) s->z_err = Z_ERRNO; - return EOF; - } - s->stream.next_in = s->inbuf; + errno = 0; + s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file); + if (s->stream.avail_in == 0) { + s->z_eof = 1; + if (ferror(s->file)) s->z_err = Z_ERRNO; + return EOF; + } + s->stream.next_in = s->inbuf; } s->stream.avail_in--; return *(s->stream.next_in)++; @@ -268,43 +293,57 @@ local void check_header(s) uInt len; int c; - /* Check the gzip magic header */ - for (len = 0; len < 2; len++) { - c = get_byte(s); - if (c != gz_magic[len]) { - if (len != 0) s->stream.avail_in++, s->stream.next_in--; - if (c != EOF) { - s->stream.avail_in++, s->stream.next_in--; - s->transparent = 1; - } - s->z_err = s->stream.avail_in != 0 ? Z_OK : Z_STREAM_END; - return; - } + /* Assure two bytes in the buffer so we can peek ahead -- handle case + where first byte of header is at the end of the buffer after the last + gzip segment */ + len = s->stream.avail_in; + if (len < 2) { + if (len) s->inbuf[0] = s->stream.next_in[0]; + errno = 0; + len = fread(s->inbuf + len, 1, Z_BUFSIZE >> len, s->file); + if (len == 0 && ferror(s->file)) s->z_err = Z_ERRNO; + s->stream.avail_in += len; + s->stream.next_in = s->inbuf; + if (s->stream.avail_in < 2) { + s->transparent = s->stream.avail_in; + return; + } } + + /* Peek ahead to check the gzip magic header */ + if (s->stream.next_in[0] != gz_magic[0] || + s->stream.next_in[1] != gz_magic[1]) { + s->transparent = 1; + return; + } + s->stream.avail_in -= 2; + s->stream.next_in += 2; + + /* Check the rest of the gzip header */ method = get_byte(s); flags = get_byte(s); if (method != Z_DEFLATED || (flags & RESERVED) != 0) { - s->z_err = Z_DATA_ERROR; - return; + s->z_err = Z_DATA_ERROR; + return; } /* Discard time, xflags and OS code: */ for (len = 0; len < 6; len++) (void)get_byte(s); if ((flags & EXTRA_FIELD) != 0) { /* skip the extra field */ - len = (uInt)get_byte(s); - len += ((uInt)get_byte(s))<<8; - /* len is garbage if EOF but the loop below will quit anyway */ - while (len-- != 0 && get_byte(s) != EOF) ; + len = (uInt)get_byte(s); + len += ((uInt)get_byte(s))<<8; + /* len is garbage if EOF but the loop below will quit anyway */ + while (len-- != 0 && get_byte(s) != EOF) ; } if ((flags & ORIG_NAME) != 0) { /* skip the original file name */ - while ((c = get_byte(s)) != 0 && c != EOF) ; + while ((c = get_byte(s)) != 0 && c != EOF) ; } if ((flags & COMMENT) != 0) { /* skip the .gz file comment */ - while ((c = get_byte(s)) != 0 && c != EOF) ; + while ((c = get_byte(s)) != 0 && c != EOF) ; } if ((flags & HEAD_CRC) != 0) { /* skip the header crc */ - for (len = 0; len < 2; len++) (void)get_byte(s); + for (len = 0; len < 2; len++) (void)get_byte(s); } s->z_err = s->z_eof ? Z_DATA_ERROR : Z_OK; } @@ -323,21 +362,21 @@ local int destroy (s) TRYFREE(s->msg); if (s->stream.state != NULL) { - if (s->mode == 'w') { -#ifdef NO_DEFLATE - err = Z_STREAM_ERROR; + if (s->mode == 'w') { +#ifdef NO_GZCOMPRESS + err = Z_STREAM_ERROR; #else - err = deflateEnd(&(s->stream)); + err = deflateEnd(&(s->stream)); #endif - } else if (s->mode == 'r') { - err = inflateEnd(&(s->stream)); - } + } else if (s->mode == 'r') { + err = inflateEnd(&(s->stream)); + } } if (s->file != NULL && fclose(s->file)) { #ifdef ESPIPE - if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */ + if (errno != ESPIPE) /* fclose is broken for pipes in HP/UX */ #endif - err = Z_ERRNO; + err = Z_ERRNO; } if (s->z_err < 0) err = s->z_err; @@ -370,71 +409,82 @@ int ZEXPORT gzread (file, buf, len) s->stream.next_out = (Bytef*)buf; s->stream.avail_out = len; + if (s->stream.avail_out && s->back != EOF) { + *next_out++ = s->back; + s->stream.next_out++; + s->stream.avail_out--; + s->back = EOF; + s->out++; + if (s->last) { + s->z_err = Z_STREAM_END; + return 1; + } + } + while (s->stream.avail_out != 0) { - if (s->transparent) { - /* Copy first the lookahead bytes: */ - uInt n = s->stream.avail_in; - if (n > s->stream.avail_out) n = s->stream.avail_out; - if (n > 0) { - zmemcpy(s->stream.next_out, s->stream.next_in, n); - next_out += n; - s->stream.next_out = next_out; - s->stream.next_in += n; - s->stream.avail_out -= n; - s->stream.avail_in -= n; - } - if (s->stream.avail_out > 0) { - s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out, - s->file); - } - len -= s->stream.avail_out; - s->stream.total_in += (uLong)len; - s->stream.total_out += (uLong)len; + if (s->transparent) { + /* Copy first the lookahead bytes: */ + uInt n = s->stream.avail_in; + if (n > s->stream.avail_out) n = s->stream.avail_out; + if (n > 0) { + zmemcpy(s->stream.next_out, s->stream.next_in, n); + next_out += n; + s->stream.next_out = next_out; + s->stream.next_in += n; + s->stream.avail_out -= n; + s->stream.avail_in -= n; + } + if (s->stream.avail_out > 0) { + s->stream.avail_out -= fread(next_out, 1, s->stream.avail_out, + s->file); + } + len -= s->stream.avail_out; + s->in += len; + s->out += len; if (len == 0) s->z_eof = 1; - return (int)len; - } + return (int)len; + } if (s->stream.avail_in == 0 && !s->z_eof) { errno = 0; s->stream.avail_in = fread(s->inbuf, 1, Z_BUFSIZE, s->file); if (s->stream.avail_in == 0) { s->z_eof = 1; - if (ferror(s->file)) { - s->z_err = Z_ERRNO; - break; - } + if (ferror(s->file)) { + s->z_err = Z_ERRNO; + break; + } } s->stream.next_in = s->inbuf; } + s->in += s->stream.avail_in; + s->out += s->stream.avail_out; s->z_err = inflate(&(s->stream), Z_NO_FLUSH); - - if (s->z_err == Z_STREAM_END) { - /* Check CRC and original size */ - s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); - start = s->stream.next_out; - - if (getLong(s) != s->crc) { - s->z_err = Z_DATA_ERROR; - } else { - (void)getLong(s); - /* The uncompressed length returned by above getlong() may - * be different from s->stream.total_out) in case of - * concatenated .gz files. Check for such files: - */ - check_header(s); - if (s->z_err == Z_OK) { - uLong total_in = s->stream.total_in; - uLong total_out = s->stream.total_out; - - inflateReset(&(s->stream)); - s->stream.total_in = total_in; - s->stream.total_out = total_out; - s->crc = crc32(0L, Z_NULL, 0); - } - } - } - if (s->z_err != Z_OK || s->z_eof) break; + s->in -= s->stream.avail_in; + s->out -= s->stream.avail_out; + + if (s->z_err == Z_STREAM_END) { + /* Check CRC and original size */ + s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); + start = s->stream.next_out; + + if (getLong(s) != s->crc) { + s->z_err = Z_DATA_ERROR; + } else { + (void)getLong(s); + /* The uncompressed length returned by above getlong() may be + * different from s->out in case of concatenated .gz files. + * Check for such files: + */ + check_header(s); + if (s->z_err == Z_OK) { + inflateReset(&(s->stream)); + s->crc = crc32(0L, Z_NULL, 0); + } + } + } + if (s->z_err != Z_OK || s->z_eof) break; } s->crc = crc32(s->crc, start, (uInt)(s->stream.next_out - start)); @@ -456,6 +506,25 @@ int ZEXPORT gzgetc(file) /* =========================================================================== + Push one byte back onto the stream. +*/ +int ZEXPORT gzungetc(c, file) + int c; + gzFile file; +{ + gz_stream *s = (gz_stream*)file; + + if (s == NULL || s->mode != 'r' || c == EOF || s->back != EOF) return EOF; + s->back = c; + s->out--; + s->last = (s->z_err == Z_STREAM_END); + if (s->last) s->z_err = Z_OK; + s->z_eof = 0; + return c; +} + + +/* =========================================================================== Reads bytes from the compressed file until len-1 characters are read, or a newline character is read and transferred to buf, or an end-of-file condition is encountered. The string is then terminated @@ -478,14 +547,14 @@ char * ZEXPORT gzgets(file, buf, len) } -#ifndef NO_DEFLATE +#ifndef NO_GZCOMPRESS /* =========================================================================== Writes the given number of uncompressed bytes into the compressed file. gzwrite returns the number of bytes actually written (0 in case of error). */ int ZEXPORT gzwrite (file, buf, len) gzFile file; - const voidp buf; + voidpc buf; unsigned len; { gz_stream *s = (gz_stream*)file; @@ -506,7 +575,11 @@ int ZEXPORT gzwrite (file, buf, len) } s->stream.avail_out = Z_BUFSIZE; } + s->in += s->stream.avail_in; + s->out += s->stream.avail_out; s->z_err = deflate(&(s->stream), Z_NO_FLUSH); + s->in -= s->stream.avail_in; + s->out -= s->stream.avail_out; if (s->z_err != Z_OK) break; } s->crc = crc32(s->crc, (const Bytef *)buf, len); @@ -514,6 +587,7 @@ int ZEXPORT gzwrite (file, buf, len) return (int)(len - s->stream.avail_in); } + /* =========================================================================== Converts, formats, and writes the args to the compressed file under control of the format string, as in fprintf. gzprintf returns the number of @@ -528,40 +602,67 @@ int ZEXPORTVA gzprintf (gzFile file, const char *format, /* args */ ...) va_list va; int len; + buf[sizeof(buf) - 1] = 0; va_start(va, format); -#ifdef HAS_vsnprintf - (void)vsnprintf(buf, sizeof(buf), format, va); -#else +#ifdef NO_vsnprintf +# ifdef HAS_vsprintf_void (void)vsprintf(buf, format, va); -#endif va_end(va); - len = strlen(buf); /* some *sprintf don't return the nb of bytes written */ - if (len <= 0) return 0; - + for (len = 0; len < sizeof(buf); len++) + if (buf[len] == 0) break; +# else + len = vsprintf(buf, format, va); + va_end(va); +# endif +#else +# ifdef HAS_vsnprintf_void + (void)vsnprintf(buf, sizeof(buf), format, va); + va_end(va); + len = strlen(buf); +# else + len = vsnprintf(buf, sizeof(buf), format, va); + va_end(va); +# endif +#endif + if (len <= 0 || len >= (int)sizeof(buf) || buf[sizeof(buf) - 1] != 0) + return 0; return gzwrite(file, buf, (unsigned)len); } #else /* not ANSI C */ int ZEXPORTVA gzprintf (file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) + a11, a12, a13, a14, a15, a16, a17, a18, a19, a20) gzFile file; const char *format; int a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, - a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; + a11, a12, a13, a14, a15, a16, a17, a18, a19, a20; { char buf[Z_PRINTF_BUFSIZE]; int len; -#ifdef HAS_snprintf - snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); -#else + buf[sizeof(buf) - 1] = 0; +#ifdef NO_snprintf +# ifdef HAS_sprintf_void sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, - a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + for (len = 0; len < sizeof(buf); len++) + if (buf[len] == 0) break; +# else + len = sprintf(buf, format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); +# endif +#else +# ifdef HAS_snprintf_void + snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); + len = strlen(buf); +# else + len = snprintf(buf, sizeof(buf), format, a1, a2, a3, a4, a5, a6, a7, a8, + a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20); +# endif #endif - len = strlen(buf); /* old sprintf doesn't return the nb of bytes written */ - if (len <= 0) return 0; - + if (len <= 0 || len >= sizeof(buf) || buf[sizeof(buf) - 1] != 0) + return 0; return gzwrite(file, buf, len); } #endif @@ -621,16 +722,18 @@ local int do_flush (file, flush) s->stream.avail_out = Z_BUFSIZE; } if (done) break; + s->out += s->stream.avail_out; s->z_err = deflate(&(s->stream), flush); + s->out -= s->stream.avail_out; - /* Ignore the second of two consecutive flushes: */ - if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK; + /* Ignore the second of two consecutive flushes: */ + if (len == 0 && s->z_err == Z_BUF_ERROR) s->z_err = Z_OK; /* deflate has finished flushing only when it hasn't used up - * all the available space in the output buffer: + * all the available space in the output buffer: */ done = (s->stream.avail_out != 0 || s->z_err == Z_STREAM_END); - + if (s->z_err != Z_OK && s->z_err != Z_STREAM_END) break; } return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; @@ -647,7 +750,7 @@ int ZEXPORT gzflush (file, flush) fflush(s->file); return s->z_err == Z_STREAM_END ? Z_OK : s->z_err; } -#endif /* NO_DEFLATE */ +#endif /* NO_GZCOMPRESS */ /* =========================================================================== Sets the starting position for the next gzread or gzwrite on the given @@ -665,99 +768,105 @@ z_off_t ZEXPORT gzseek (file, offset, whence) gz_stream *s = (gz_stream*)file; if (s == NULL || whence == SEEK_END || - s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) { - return -1L; + s->z_err == Z_ERRNO || s->z_err == Z_DATA_ERROR) { + return -1L; } - + if (s->mode == 'w') { -#ifdef NO_DEFLATE - return -1L; +#ifdef NO_GZCOMPRESS + return -1L; #else - if (whence == SEEK_SET) { - offset -= s->stream.total_in; - } - if (offset < 0) return -1L; - - /* At this point, offset is the number of zero bytes to write. */ - if (s->inbuf == Z_NULL) { - s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */ - zmemzero(s->inbuf, Z_BUFSIZE); - } - while (offset > 0) { - uInt size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (uInt)offset; - - size = gzwrite(file, s->inbuf, size); - if (size == 0) return -1L; - - offset -= size; - } - return (z_off_t)s->stream.total_in; + if (whence == SEEK_SET) { + offset -= s->in; + } + if (offset < 0) return -1L; + + /* At this point, offset is the number of zero bytes to write. */ + if (s->inbuf == Z_NULL) { + s->inbuf = (Byte*)ALLOC(Z_BUFSIZE); /* for seeking */ + if (s->inbuf == Z_NULL) return -1L; + zmemzero(s->inbuf, Z_BUFSIZE); + } + while (offset > 0) { + uInt size = Z_BUFSIZE; + if (offset < Z_BUFSIZE) size = (uInt)offset; + + size = gzwrite(file, s->inbuf, size); + if (size == 0) return -1L; + + offset -= size; + } + return s->in; #endif } /* Rest of function is for reading only */ /* compute absolute position */ if (whence == SEEK_CUR) { - offset += s->stream.total_out; + offset += s->out; } if (offset < 0) return -1L; if (s->transparent) { - /* map to fseek */ - s->stream.avail_in = 0; - s->stream.next_in = s->inbuf; + /* map to fseek */ + s->back = EOF; + s->stream.avail_in = 0; + s->stream.next_in = s->inbuf; if (fseek(s->file, offset, SEEK_SET) < 0) return -1L; - s->stream.total_in = s->stream.total_out = (uLong)offset; - return offset; + s->in = s->out = offset; + return offset; } /* For a negative seek, rewind and use positive seek */ - if ((uLong)offset >= s->stream.total_out) { - offset -= s->stream.total_out; + if (offset >= s->out) { + offset -= s->out; } else if (gzrewind(file) < 0) { - return -1L; + return -1L; } /* offset is now the number of bytes to skip. */ if (offset != 0 && s->outbuf == Z_NULL) { - s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); + s->outbuf = (Byte*)ALLOC(Z_BUFSIZE); + if (s->outbuf == Z_NULL) return -1L; + } + if (offset && s->back != EOF) { + s->back = EOF; + s->out++; + offset--; + if (s->last) s->z_err = Z_STREAM_END; } while (offset > 0) { - int size = Z_BUFSIZE; - if (offset < Z_BUFSIZE) size = (int)offset; + int size = Z_BUFSIZE; + if (offset < Z_BUFSIZE) size = (int)offset; - size = gzread(file, s->outbuf, (uInt)size); - if (size <= 0) return -1L; - offset -= size; + size = gzread(file, s->outbuf, (uInt)size); + if (size <= 0) return -1L; + offset -= size; } - return (z_off_t)s->stream.total_out; + return s->out; } /* =========================================================================== - Rewinds input file. + Rewinds input file. */ int ZEXPORT gzrewind (file) gzFile file; { gz_stream *s = (gz_stream*)file; - + if (s == NULL || s->mode != 'r') return -1; s->z_err = Z_OK; s->z_eof = 0; + s->back = EOF; s->stream.avail_in = 0; s->stream.next_in = s->inbuf; s->crc = crc32(0L, Z_NULL, 0); - - if (s->startpos == 0) { /* not a compressed file */ - rewind(s->file); - return 0; - } - - (void) inflateReset(&s->stream); - return fseek(s->file, s->startpos, SEEK_SET); + if (!s->transparent) (void)inflateReset(&s->stream); + s->in = 0; + s->out = 0; + return fseek(s->file, s->start, SEEK_SET); } /* =========================================================================== @@ -779,8 +888,14 @@ int ZEXPORT gzeof (file) gzFile file; { gz_stream *s = (gz_stream*)file; - - return (s == NULL || s->mode != 'r') ? 0 : s->z_eof; + + /* With concatenated compressed files that can have embedded + * crc trailers, z_eof is no longer the only/best indicator of EOF + * on a gz_stream. Handle end-of-stream error explicitly here. + */ + if (s == NULL || s->mode != 'r') return 0; + if (s->z_eof) return 1; + return s->z_err == Z_STREAM_END; } /* =========================================================================== @@ -828,14 +943,14 @@ int ZEXPORT gzclose (file) if (s == NULL) return Z_STREAM_ERROR; if (s->mode == 'w') { -#ifdef NO_DEFLATE - return Z_STREAM_ERROR; +#ifdef NO_GZCOMPRESS + return Z_STREAM_ERROR; #else err = do_flush (file, Z_FINISH); if (err != Z_OK) return destroy((gz_stream*)file); putLong (s->file, s->crc); - putLong (s->file, s->stream.total_in); + putLong (s->file, (uLong)(s->in & 0xffffffff)); #endif } return destroy((gz_stream*)file); @@ -848,7 +963,7 @@ int ZEXPORT gzclose (file) errnum is set to Z_ERRNO and the application may consult errno to get the exact error code. */ -const char* ZEXPORT gzerror (file, errnum) +const char * ZEXPORT gzerror (file, errnum) gzFile file; int *errnum; { @@ -862,14 +977,29 @@ const char* ZEXPORT gzerror (file, errnum) *errnum = s->z_err; if (*errnum == Z_OK) return (const char*)""; - m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg); + m = (char*)(*errnum == Z_ERRNO ? zstrerror(errno) : s->stream.msg); if (m == NULL || *m == '\0') m = (char*)ERR_MSG(s->z_err); TRYFREE(s->msg); s->msg = (char*)ALLOC(strlen(s->path) + strlen(m) + 3); + if (s->msg == Z_NULL) return (const char*)ERR_MSG(Z_MEM_ERROR); strcpy(s->msg, s->path); strcat(s->msg, ": "); strcat(s->msg, m); return (const char*)s->msg; } + +/* =========================================================================== + Clear the error and end-of-file flags, and do the same for the real file. +*/ +void ZEXPORT gzclearerr (file) + gzFile file; +{ + gz_stream *s = (gz_stream*)file; + + if (s == NULL) return; + if (s->z_err != Z_STREAM_END) s->z_err = Z_OK; + s->z_eof = 0; + clearerr(s->file); +} diff --git a/zlib/index b/zlib/index deleted file mode 100644 index 8a245766402..00000000000 --- a/zlib/index +++ /dev/null @@ -1,86 +0,0 @@ -ChangeLog history of changes -INDEX this file -FAQ Frequently Asked Questions about zlib -Make_vms.com script for Vax/VMS -Makefile makefile for Unix (generated by configure) -Makefile.in makefile for Unix (template for configure) -Makefile.riscos makefile for RISCOS -README guess what -algorithm.txt description of the (de)compression algorithm -configure configure script for Unix -descrip.mms makefile for Vax/VMS -zlib.3 mini man page for zlib (volunteers to write full - man pages from zlib.h welcome. write to jloup@gzip.org) - -amiga/Makefile.sas makefile for Amiga SAS/C -amiga/Makefile.pup makefile for Amiga powerUP SAS/C PPC - -msdos/Makefile.w32 makefile for Microsoft Visual C++ 32-bit -msdos/Makefile.b32 makefile for Borland C++ 32-bit -msdos/Makefile.bor makefile for Borland C/C++ 16-bit -msdos/Makefile.dj2 makefile for DJGPP 2.x -msdos/Makefile.emx makefile for EMX 0.9c (32-bit DOS/OS2) -msdos/Makefile.msc makefile for Microsoft C 16-bit -msdos/Makefile.tc makefile for Turbo C -msdos/Makefile.wat makefile for Watcom C -msdos/zlib.def definition file for Windows DLL -msdos/zlib.rc definition file for Windows DLL - -nt/Makefile.nt makefile for Windows NT -nt/zlib.dnt definition file for Windows NT DLL -nt/Makefile.emx makefile for EMX 0.9c/RSXNT 1.41 (Win32 Intel) -nt/Makefile.gcc makefile for Windows NT using GCC (mingw32) - - - zlib public header files (must be kept): -zconf.h -zlib.h - - private source files used to build the zlib library: -adler32.c -compress.c -crc32.c -deflate.c -deflate.h -gzio.c -infblock.c -infblock.h -infcodes.c -infcodes.h -inffast.c -inffast.h -inflate.c -inftrees.c -inftrees.h -infutil.c -infutil.h -maketree.c -trees.c -uncompr.c -zutil.c -zutil.h - - source files for sample programs: -example.c -minigzip.c - - unsupported contribution by third parties - -contrib/asm386/ by Gilles Vollant <info@winimage.com> - 386 asm code replacing longest_match(). - -contrib/minizip/ by Gilles Vollant <info@winimage.com> - Mini zip and unzip based on zlib - See http://www.winimage.com/zLibDll/unzip.html - -contrib/iostream/ by Kevin Ruland <kevin@rodin.wustl.edu> - A C++ I/O streams interface to the zlib gz* functions - -contrib/iostream2/ by Tyge Løvset <Tyge.Lovset@cmr.no> - Another C++ I/O streams interface - -contrib/untgz/ by "Pedro A. Aranda Guti\irrez" <paag@tid.es> - A very simple tar.gz extractor using zlib - -contrib/visual-basic.txt by Carlos Rios <c_rios@sonda.cl> - How to use compress(), uncompress() and the gz* functions from VB. diff --git a/zlib/infback.c b/zlib/infback.c new file mode 100644 index 00000000000..110b03b857f --- /dev/null +++ b/zlib/infback.c @@ -0,0 +1,619 @@ +/* infback.c -- inflate using a call-back interface + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + This code is largely copied from inflate.c. Normally either infback.o or + inflate.o would be linked into an application--not both. The interface + with inffast.c is retained so that optimized assembler-coded versions of + inflate_fast() can be used with either inflate.c or infback.c. + */ + +#include "zutil.h" +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" + +/* function prototypes */ +local void fixedtables OF((struct inflate_state FAR *state)); + +/* + strm provides memory allocation functions in zalloc and zfree, or + Z_NULL to use the library memory allocation functions. + + windowBits is in the range 8..15, and window is a user-supplied + window and output buffer that is 2**windowBits bytes. + */ +int ZEXPORT inflateBackInit_(strm, windowBits, window, version, stream_size) +z_stream FAR *strm; +int windowBits; +unsigned char FAR *window; +const char *version; +int stream_size; +{ + struct inflate_state FAR *state; + + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL || window == Z_NULL || + windowBits < 8 || windowBits > 15) + return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *)ZALLOC(strm, 1, + sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (voidpf)state; + state->wbits = windowBits; + state->wsize = 1U << windowBits; + state->window = window; + state->write = 0; + state->whave = 0; + return Z_OK; +} + +/* + Return state with length and distance decoding tables and index sizes set to + fixed code decoding. Normally this returns fixed tables from inffixed.h. + If BUILDFIXED is defined, then instead this routine builds the tables the + first time it's called, and returns those tables the first time and + thereafter. This reduces the size of the code by about 2K bytes, in + exchange for a little execution time. However, BUILDFIXED should not be + used for threaded applications, since the rewriting of the tables and virgin + may not be thread-safe. + */ +local void fixedtables(state) +struct inflate_state FAR *state; +{ +#ifdef BUILDFIXED + static int virgin = 1; + static code *lenfix, *distfix; + static code fixed[544]; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + unsigned sym, bits; + static code *next; + + /* literal/length table */ + sym = 0; + while (sym < 144) state->lens[sym++] = 8; + while (sym < 256) state->lens[sym++] = 9; + while (sym < 280) state->lens[sym++] = 7; + while (sym < 288) state->lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); + + /* distance table */ + sym = 0; + while (sym < 32) state->lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); + + /* do this just once */ + virgin = 0; + } +#else /* !BUILDFIXED */ +# include "inffixed.h" +#endif /* BUILDFIXED */ + state->lencode = lenfix; + state->lenbits = 9; + state->distcode = distfix; + state->distbits = 5; +} + +/* Macros for inflateBack(): */ + +/* Load returned state from inflate_fast() */ +#define LOAD() \ + do { \ + put = strm->next_out; \ + left = strm->avail_out; \ + next = strm->next_in; \ + have = strm->avail_in; \ + hold = state->hold; \ + bits = state->bits; \ + } while (0) + +/* Set state from registers for inflate_fast() */ +#define RESTORE() \ + do { \ + strm->next_out = put; \ + strm->avail_out = left; \ + strm->next_in = next; \ + strm->avail_in = have; \ + state->hold = hold; \ + state->bits = bits; \ + } while (0) + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Assure that some input is available. If input is requested, but denied, + then return a Z_BUF_ERROR from inflateBack(). */ +#define PULL() \ + do { \ + if (have == 0) { \ + have = in(in_desc, &next); \ + if (have == 0) { \ + next = Z_NULL; \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflateBack() + with an error if there is no input available. */ +#define PULLBYTE() \ + do { \ + PULL(); \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflateBack() with + an error. */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n < 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Assure that some output space is available, by writing out the window + if it's full. If the write fails, return from inflateBack() with a + Z_BUF_ERROR. */ +#define ROOM() \ + do { \ + if (left == 0) { \ + put = state->window; \ + left = state->wsize; \ + state->whave = left; \ + if (out(out_desc, put, left)) { \ + ret = Z_BUF_ERROR; \ + goto inf_leave; \ + } \ + } \ + } while (0) + +/* + strm provides the memory allocation functions and window buffer on input, + and provides information on the unused input on return. For Z_DATA_ERROR + returns, strm will also provide an error message. + + in() and out() are the call-back input and output functions. When + inflateBack() needs more input, it calls in(). When inflateBack() has + filled the window with output, or when it completes with data in the + window, it calls out() to write out the data. The application must not + change the provided input until in() is called again or inflateBack() + returns. The application must not change the window/output buffer until + inflateBack() returns. + + in() and out() are called with a descriptor parameter provided in the + inflateBack() call. This parameter can be a structure that provides the + information required to do the read or write, as well as accumulated + information on the input and output such as totals and check values. + + in() should return zero on failure. out() should return non-zero on + failure. If either in() or out() fails, than inflateBack() returns a + Z_BUF_ERROR. strm->next_in can be checked for Z_NULL to see whether it + was in() or out() that caused in the error. Otherwise, inflateBack() + returns Z_STREAM_END on success, Z_DATA_ERROR for an deflate format + error, or Z_MEM_ERROR if it could not allocate memory for the state. + inflateBack() can also return Z_STREAM_ERROR if the input parameters + are not correct, i.e. strm is Z_NULL or the state was not initialized. + */ +int ZEXPORT inflateBack(strm, in, in_desc, out, out_desc) +z_stream FAR *strm; +in_func in; +void FAR *in_desc; +out_func out; +void FAR *out_desc; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have, left; /* available input and output */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code this; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + /* Check that the strm exists and that the state was initialized */ + if (strm == Z_NULL || strm->state == Z_NULL) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + + /* Reset the state */ + strm->msg = Z_NULL; + state->mode = TYPE; + state->last = 0; + state->whave = 0; + next = strm->next_in; + have = next != Z_NULL ? strm->avail_in : 0; + hold = 0; + bits = 0; + put = state->window; + left = state->wsize; + + /* Inflate until end of block marked as last */ + for (;;) + switch (state->mode) { + case TYPE: + /* determine and dispatch block type */ + if (state->last) { + BYTEBITS(); + state->mode = DONE; + break; + } + NEEDBITS(3); + state->last = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + state->last ? " (last)" : "")); + state->mode = STORED; + break; + case 1: /* fixed block */ + fixedtables(state); + Tracev((stderr, "inflate: fixed codes block%s\n", + state->last ? " (last)" : "")); + state->mode = LEN; /* decode codes */ + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + state->last ? " (last)" : "")); + state->mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + state->mode = BAD; + } + DROPBITS(2); + break; + + case STORED: + /* get and verify stored block length */ + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + state->mode = BAD; + break; + } + state->length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %u\n", + state->length)); + INITBITS(); + + /* copy stored block from input to output */ + while (state->length != 0) { + copy = state->length; + PULL(); + ROOM(); + if (copy > have) copy = have; + if (copy > left) copy = left; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + state->length -= copy; + } + Tracev((stderr, "inflate: stored end\n")); + state->mode = TYPE; + break; + + case TABLE: + /* get dynamic table entries descriptor */ + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); +#ifndef PKZIP_BUG_WORKAROUND + if (state->nlen > 286 || state->ndist > 30) { + strm->msg = (char *)"too many length or distance symbols"; + state->mode = BAD; + break; + } +#endif + Tracev((stderr, "inflate: table sizes ok\n")); + + /* get code length code lengths (not a typo) */ + state->have = 0; + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 7; + ret = inflate_table(CODES, state->lens, 19, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + + /* get length and distance code code lengths */ + state->have = 0; + while (state->have < state->nlen + state->ndist) { + for (;;) { + this = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.val < 16) { + NEEDBITS(this.bits); + DROPBITS(this.bits); + state->lens[state->have++] = this.val; + } + else { + if (this.val == 16) { + NEEDBITS(this.bits + 2); + DROPBITS(this.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + len = (unsigned)(state->lens[state->have - 1]); + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (this.val == 17) { + NEEDBITS(this.bits + 3); + DROPBITS(this.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(this.bits + 7); + DROPBITS(this.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* build code tables */ + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 9; + ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + state->mode = BAD; + break; + } + state->distcode = (code const FAR *)(state->next); + state->distbits = 6; + ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, + &(state->next), &(state->distbits), state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + state->mode = LEN; + + case LEN: + /* use inflate_fast() if we have enough input and output */ + if (have >= 6 && left >= 258) { + RESTORE(); + if (state->whave < state->wsize) + state->whave = state->wsize - left; + inflate_fast(strm, state->wsize); + LOAD(); + break; + } + + /* get a literal, length, or end-of-block code */ + for (;;) { + this = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.op && (this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = state->lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + state->length = (unsigned)this.val; + + /* process literal */ + if (this.op == 0) { + Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", this.val)); + ROOM(); + *put++ = (unsigned char)(state->length); + left--; + state->mode = LEN; + break; + } + + /* process end of block */ + if (this.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + state->mode = TYPE; + break; + } + + /* invalid code */ + if (this.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; + break; + } + + /* length code -- get extra bits, if any */ + state->extra = (unsigned)(this.op) & 15; + if (state->extra != 0) { + NEEDBITS(state->extra); + state->length += BITS(state->extra); + DROPBITS(state->extra); + } + Tracevv((stderr, "inflate: length %u\n", state->length)); + + /* get distance code */ + for (;;) { + this = state->distcode[BITS(state->distbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if ((this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = state->distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + if (this.op & 64) { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + state->offset = (unsigned)this.val; + + /* get distance extra bits, if any */ + state->extra = (unsigned)(this.op) & 15; + if (state->extra != 0) { + NEEDBITS(state->extra); + state->offset += BITS(state->extra); + DROPBITS(state->extra); + } + if (state->offset > state->wsize - (state->whave < state->wsize ? + left : 0)) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } + Tracevv((stderr, "inflate: distance %u\n", state->offset)); + + /* copy match from window to output */ + do { + ROOM(); + copy = state->wsize - state->offset; + if (copy < left) { + from = put + copy; + copy = left - copy; + } + else { + from = put - state->offset; + copy = left; + } + if (copy > state->length) copy = state->length; + state->length -= copy; + left -= copy; + do { + *put++ = *from++; + } while (--copy); + } while (state->length != 0); + break; + + case DONE: + /* inflate stream terminated properly -- write leftover output */ + ret = Z_STREAM_END; + if (left < state->wsize) { + if (out(out_desc, state->window, state->wsize - left)) + ret = Z_BUF_ERROR; + } + goto inf_leave; + + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + + default: /* can't happen, but makes compilers happy */ + ret = Z_STREAM_ERROR; + goto inf_leave; + } + + /* Return unused input */ + inf_leave: + strm->next_in = next; + strm->avail_in = have; + return ret; +} + +int ZEXPORT inflateBackEnd(strm) +z_stream FAR *strm; +{ + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} diff --git a/zlib/infblock.c b/zlib/infblock.c deleted file mode 100644 index dd7a6d40a8d..00000000000 --- a/zlib/infblock.c +++ /dev/null @@ -1,403 +0,0 @@ -/* infblock.c -- interpret and process block types to last block - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "infblock.h" -#include "inftrees.h" -#include "infcodes.h" -#include "infutil.h" - -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -/* Table for deflate from PKZIP's appnote.txt. */ -local const uInt border[] = { /* Order of the bit length code lengths */ - 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; - -/* - Notes beyond the 1.93a appnote.txt: - - 1. Distance pointers never point before the beginning of the output - stream. - 2. Distance pointers can point back across blocks, up to 32k away. - 3. There is an implied maximum of 7 bits for the bit length table and - 15 bits for the actual data. - 4. If only one code exists, then it is encoded using one bit. (Zero - would be more efficient, but perhaps a little confusing.) If two - codes exist, they are coded using one bit each (0 and 1). - 5. There is no way of sending zero distance codes--a dummy must be - sent if there are none. (History: a pre 2.0 version of PKZIP would - store blocks with no distance codes, but this was discovered to be - too harsh a criterion.) Valid only for 1.93a. 2.04c does allow - zero distance codes, which is sent as one code of zero bits in - length. - 6. There are up to 286 literal/length codes. Code 256 represents the - end-of-block. Note however that the static length tree defines - 288 codes just to fill out the Huffman codes. Codes 286 and 287 - cannot be used though, since there is no length base or extra bits - defined for them. Similarily, there are up to 30 distance codes. - However, static trees define 32 codes (all 5 bits) to fill out the - Huffman codes, but the last two had better not show up in the data. - 7. Unzip can check dynamic Huffman blocks for complete code sets. - The exception is that a single code would not be complete (see #4). - 8. The five bits following the block type is really the number of - literal codes sent minus 257. - 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits - (1+6+6). Therefore, to output three times the length, you output - three codes (1+1+1), whereas to output four times the same length, - you only need two codes (1+3). Hmm. - 10. In the tree reconstruction algorithm, Code = Code + Increment - only if BitLength(i) is not zero. (Pretty obvious.) - 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19) - 12. Note: length code 284 can represent 227-258, but length code 285 - really is 258. The last length deserves its own, short code - since it gets used a lot in very redundant files. The length - 258 is special since 258 - 3 (the min match length) is 255. - 13. The literal/length and distance code bit lengths are read as a - single stream of lengths. It is possible (and advantageous) for - a repeat code (16, 17, or 18) to go across the boundary between - the two sets of lengths. - */ - - -void inflate_blocks_reset(s, z, c) -inflate_blocks_statef *s; -z_streamp z; -uLongf *c; -{ - if (c != Z_NULL) - *c = s->check; - if (s->mode == BTREE || s->mode == DTREE) - ZFREE(z, s->sub.trees.blens); - if (s->mode == CODES) - inflate_codes_free(s->sub.decode.codes, z); - s->mode = TYPE; - s->bitk = 0; - s->bitb = 0; - s->read = s->write = s->window; - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(0L, (const Bytef *)Z_NULL, 0); - Tracev((stderr, "inflate: blocks reset\n")); -} - - -inflate_blocks_statef *inflate_blocks_new(z, c, w) -z_streamp z; -check_func c; -uInt w; -{ - inflate_blocks_statef *s; - - if ((s = (inflate_blocks_statef *)ZALLOC - (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) - return s; - if ((s->hufts = - (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) - { - ZFREE(z, s); - return Z_NULL; - } - if ((s->window = (Bytef *)ZALLOC(z, 1, w)) == Z_NULL) - { - ZFREE(z, s->hufts); - ZFREE(z, s); - return Z_NULL; - } - s->end = s->window + w; - s->checkfn = c; - s->mode = TYPE; - Tracev((stderr, "inflate: blocks allocated\n")); - inflate_blocks_reset(s, z, Z_NULL); - return s; -} - - -int inflate_blocks(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt t; /* temporary storage */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input based on current state */ - while (1) switch (s->mode) - { - case TYPE: - NEEDBITS(3) - t = (uInt)b & 7; - s->last = t & 1; - switch (t >> 1) - { - case 0: /* stored */ - Tracev((stderr, "inflate: stored block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - t = k & 7; /* go to byte boundary */ - DUMPBITS(t) - s->mode = LENS; /* get length of stored block */ - break; - case 1: /* fixed */ - Tracev((stderr, "inflate: fixed codes block%s\n", - s->last ? " (last)" : "")); - { - uInt bl, bd; - inflate_huft *tl, *td; - - inflate_trees_fixed(&bl, &bd, &tl, &td, z); - s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); - if (s->sub.decode.codes == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - } - DUMPBITS(3) - s->mode = CODES; - break; - case 2: /* dynamic */ - Tracev((stderr, "inflate: dynamic codes block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - s->mode = TABLE; - break; - case 3: /* illegal */ - DUMPBITS(3) - s->mode = BAD; - z->msg = (char*)"invalid block type"; - r = Z_DATA_ERROR; - LEAVE - } - break; - case LENS: - NEEDBITS(32) - if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) - { - s->mode = BAD; - z->msg = (char*)"invalid stored block lengths"; - r = Z_DATA_ERROR; - LEAVE - } - s->sub.left = (uInt)b & 0xffff; - b = k = 0; /* dump bits */ - Tracev((stderr, "inflate: stored length %u\n", s->sub.left)); - s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); - break; - case STORED: - if (n == 0) - LEAVE - NEEDOUT - t = s->sub.left; - if (t > n) t = n; - if (t > m) t = m; - zmemcpy(q, p, t); - p += t; n -= t; - q += t; m -= t; - if ((s->sub.left -= t) != 0) - break; - Tracev((stderr, "inflate: stored end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - s->mode = s->last ? DRY : TYPE; - break; - case TABLE: - NEEDBITS(14) - s->sub.trees.table = t = (uInt)b & 0x3fff; -#ifndef PKZIP_BUG_WORKAROUND - if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) - { - s->mode = BAD; - z->msg = (char*)"too many length or distance symbols"; - r = Z_DATA_ERROR; - LEAVE - } -#endif - t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); - if ((s->sub.trees.blens = (uIntf*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - DUMPBITS(14) - s->sub.trees.index = 0; - Tracev((stderr, "inflate: table sizes ok\n")); - s->mode = BTREE; - case BTREE: - while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) - { - NEEDBITS(3) - s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; - DUMPBITS(3) - } - while (s->sub.trees.index < 19) - s->sub.trees.blens[border[s->sub.trees.index++]] = 0; - s->sub.trees.bb = 7; - t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, - &s->sub.trees.tb, s->hufts, z); - if (t != Z_OK) - { - r = t; - if (r == Z_DATA_ERROR) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - } - LEAVE - } - s->sub.trees.index = 0; - Tracev((stderr, "inflate: bits tree ok\n")); - s->mode = DTREE; - case DTREE: - while (t = s->sub.trees.table, - s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) - { - inflate_huft *h; - uInt i, j, c; - - t = s->sub.trees.bb; - NEEDBITS(t) - h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); - t = h->bits; - c = h->base; - if (c < 16) - { - DUMPBITS(t) - s->sub.trees.blens[s->sub.trees.index++] = c; - } - else /* c == 16..18 */ - { - i = c == 18 ? 7 : c - 14; - j = c == 18 ? 11 : 3; - NEEDBITS(t + i) - DUMPBITS(t) - j += (uInt)b & inflate_mask[i]; - DUMPBITS(i) - i = s->sub.trees.index; - t = s->sub.trees.table; - if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || - (c == 16 && i < 1)) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - z->msg = (char*)"invalid bit length repeat"; - r = Z_DATA_ERROR; - LEAVE - } - c = c == 16 ? s->sub.trees.blens[i - 1] : 0; - do { - s->sub.trees.blens[i++] = c; - } while (--j); - s->sub.trees.index = i; - } - } - s->sub.trees.tb = Z_NULL; - { - uInt bl, bd; - inflate_huft *tl, *td; - inflate_codes_statef *c; - - bl = 9; /* must be <= 9 for lookahead assumptions */ - bd = 6; /* must be <= 9 for lookahead assumptions */ - t = s->sub.trees.table; - t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), - s->sub.trees.blens, &bl, &bd, &tl, &td, - s->hufts, z); - if (t != Z_OK) - { - if (t == (uInt)Z_DATA_ERROR) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - } - r = t; - LEAVE - } - Tracev((stderr, "inflate: trees ok\n")); - if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - s->sub.decode.codes = c; - } - ZFREE(z, s->sub.trees.blens); - s->mode = CODES; - case CODES: - UPDATE - if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) - return inflate_flush(s, z, r); - r = Z_OK; - inflate_codes_free(s->sub.decode.codes, z); - LOAD - Tracev((stderr, "inflate: codes end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - if (!s->last) - { - s->mode = TYPE; - break; - } - s->mode = DRY; - case DRY: - FLUSH - if (s->read != s->write) - LEAVE - s->mode = DONE; - case DONE: - r = Z_STREAM_END; - LEAVE - case BAD: - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -} - - -int inflate_blocks_free(s, z) -inflate_blocks_statef *s; -z_streamp z; -{ - inflate_blocks_reset(s, z, Z_NULL); - ZFREE(z, s->window); - ZFREE(z, s->hufts); - ZFREE(z, s); - Tracev((stderr, "inflate: blocks freed\n")); - return Z_OK; -} - - -void inflate_set_dictionary(s, d, n) -inflate_blocks_statef *s; -const Bytef *d; -uInt n; -{ - zmemcpy(s->window, d, n); - s->read = s->write = s->window + n; -} - - -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. - * IN assertion: s != Z_NULL - */ -int inflate_blocks_sync_point(s) -inflate_blocks_statef *s; -{ - return s->mode == LENS; -} diff --git a/zlib/infblock.h b/zlib/infblock.h deleted file mode 100644 index 173b2267ade..00000000000 --- a/zlib/infblock.h +++ /dev/null @@ -1,39 +0,0 @@ -/* infblock.h -- header to use infblock.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -struct inflate_blocks_state; -typedef struct inflate_blocks_state FAR inflate_blocks_statef; - -extern inflate_blocks_statef * inflate_blocks_new OF(( - z_streamp z, - check_func c, /* check function */ - uInt w)); /* window size */ - -extern int inflate_blocks OF(( - inflate_blocks_statef *, - z_streamp , - int)); /* initial return code */ - -extern void inflate_blocks_reset OF(( - inflate_blocks_statef *, - z_streamp , - uLongf *)); /* check value on output */ - -extern int inflate_blocks_free OF(( - inflate_blocks_statef *, - z_streamp)); - -extern void inflate_set_dictionary OF(( - inflate_blocks_statef *s, - const Bytef *d, /* dictionary */ - uInt n)); /* dictionary length */ - -extern int inflate_blocks_sync_point OF(( - inflate_blocks_statef *s)); diff --git a/zlib/infcodes.c b/zlib/infcodes.c deleted file mode 100644 index 9abe5412b9c..00000000000 --- a/zlib/infcodes.c +++ /dev/null @@ -1,251 +0,0 @@ -/* infcodes.c -- process literals and length/distance pairs - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "inftrees.h" -#include "infblock.h" -#include "infcodes.h" -#include "infutil.h" -#include "inffast.h" - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -typedef enum { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ - START, /* x: set up for LEN */ - LEN, /* i: get length/literal/eob next */ - LENEXT, /* i: getting length extra (have base) */ - DIST, /* i: get distance next */ - DISTEXT, /* i: getting distance extra */ - COPY, /* o: copying bytes in window, waiting for space */ - LIT, /* o: got literal, waiting for output space */ - WASH, /* o: got eob, possibly still output waiting */ - END, /* x: got eob and all data flushed */ - BADCODE} /* x: got error */ -inflate_codes_mode; - -/* inflate codes private state */ -struct inflate_codes_state { - - /* mode */ - inflate_codes_mode mode; /* current inflate_codes mode */ - - /* mode dependent information */ - uInt len; - union { - struct { - inflate_huft *tree; /* pointer into tree */ - uInt need; /* bits needed */ - } code; /* if LEN or DIST, where in tree */ - uInt lit; /* if LIT, literal */ - struct { - uInt get; /* bits to get for extra */ - uInt dist; /* distance back to copy from */ - } copy; /* if EXT or COPY, where and how much */ - } sub; /* submode */ - - /* mode independent information */ - Byte lbits; /* ltree bits decoded per branch */ - Byte dbits; /* dtree bits decoder per branch */ - inflate_huft *ltree; /* literal/length/eob tree */ - inflate_huft *dtree; /* distance tree */ - -}; - - -inflate_codes_statef *inflate_codes_new(bl, bd, tl, td, z) -uInt bl, bd; -inflate_huft *tl; -inflate_huft *td; /* need separate declaration for Borland C++ */ -z_streamp z; -{ - inflate_codes_statef *c; - - if ((c = (inflate_codes_statef *) - ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) - { - c->mode = START; - c->lbits = (Byte)bl; - c->dbits = (Byte)bd; - c->ltree = tl; - c->dtree = td; - Tracev((stderr, "inflate: codes new\n")); - } - return c; -} - - -int inflate_codes(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt j; /* temporary storage */ - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - Bytef *f; /* pointer to copy strings from */ - inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input and output based on current state */ - while (1) switch (c->mode) - { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ - case START: /* x: set up for LEN */ -#ifndef SLOW - if (m >= 258 && n >= 10) - { - UPDATE - r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); - LOAD - if (r != Z_OK) - { - c->mode = r == Z_STREAM_END ? WASH : BADCODE; - break; - } - } -#endif /* !SLOW */ - c->sub.code.need = c->lbits; - c->sub.code.tree = c->ltree; - c->mode = LEN; - case LEN: /* i: get length/literal/eob next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e == 0) /* literal */ - { - c->sub.lit = t->base; - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", t->base)); - c->mode = LIT; - break; - } - if (e & 16) /* length */ - { - c->sub.copy.get = e & 15; - c->len = t->base; - c->mode = LENEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - if (e & 32) /* end of block */ - { - Tracevv((stderr, "inflate: end of block\n")); - c->mode = WASH; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid literal/length code"; - r = Z_DATA_ERROR; - LEAVE - case LENEXT: /* i: getting length extra (have base) */ - j = c->sub.copy.get; - NEEDBITS(j) - c->len += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - c->sub.code.need = c->dbits; - c->sub.code.tree = c->dtree; - Tracevv((stderr, "inflate: length %u\n", c->len)); - c->mode = DIST; - case DIST: /* i: get distance next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e & 16) /* distance */ - { - c->sub.copy.get = e & 15; - c->sub.copy.dist = t->base; - c->mode = DISTEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid distance code"; - r = Z_DATA_ERROR; - LEAVE - case DISTEXT: /* i: getting distance extra */ - j = c->sub.copy.get; - NEEDBITS(j) - c->sub.copy.dist += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - Tracevv((stderr, "inflate: distance %u\n", c->sub.copy.dist)); - c->mode = COPY; - case COPY: /* o: copying bytes in window, waiting for space */ - f = q - c->sub.copy.dist; - while (f < s->window) /* modulo window size-"while" instead */ - f += s->end - s->window; /* of "if" handles invalid distances */ - while (c->len) - { - NEEDOUT - OUTBYTE(*f++) - if (f == s->end) - f = s->window; - c->len--; - } - c->mode = START; - break; - case LIT: /* o: got literal, waiting for output space */ - NEEDOUT - OUTBYTE(c->sub.lit) - c->mode = START; - break; - case WASH: /* o: got eob, possibly more output */ - if (k > 7) /* return unused byte, if any */ - { - Assert(k < 16, "inflate_codes grabbed too many bytes") - k -= 8; - n++; - p--; /* can always return one */ - } - FLUSH - if (s->read != s->write) - LEAVE - c->mode = END; - case END: - r = Z_STREAM_END; - LEAVE - case BADCODE: /* x: got error */ - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ -#endif -} - - -void inflate_codes_free(c, z) -inflate_codes_statef *c; -z_streamp z; -{ - ZFREE(z, c); - Tracev((stderr, "inflate: codes free\n")); -} diff --git a/zlib/infcodes.h b/zlib/infcodes.h deleted file mode 100644 index 46821a02be6..00000000000 --- a/zlib/infcodes.h +++ /dev/null @@ -1,27 +0,0 @@ -/* infcodes.h -- header to use infcodes.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -struct inflate_codes_state; -typedef struct inflate_codes_state FAR inflate_codes_statef; - -extern inflate_codes_statef *inflate_codes_new OF(( - uInt, uInt, - inflate_huft *, inflate_huft *, - z_streamp )); - -extern int inflate_codes OF(( - inflate_blocks_statef *, - z_streamp , - int)); - -extern void inflate_codes_free OF(( - inflate_codes_statef *, - z_streamp )); - diff --git a/zlib/inffast.c b/zlib/inffast.c index aa7f1d4d2ad..c716440a92a 100644 --- a/zlib/inffast.c +++ b/zlib/inffast.c @@ -1,183 +1,305 @@ -/* inffast.c -- process literals and length/distance pairs fast - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h +/* inffast.c -- fast decoding + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h */ #include "zutil.h" #include "inftrees.h" -#include "infblock.h" -#include "infcodes.h" -#include "infutil.h" +#include "inflate.h" #include "inffast.h" -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ +#ifndef ASMINF -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits +/* Allow machine dependent optimization for post-increment or pre-increment. + Based on testing to date, + Pre-increment preferred for: + - PowerPC G3 (Adler) + - MIPS R5000 (Randers-Pehrson) + Post-increment preferred for: + - none + No measurable difference: + - Pentium III (Anderson) + - 68060 (Nikl) + */ +#ifdef POSTINC +# define OFF 0 +# define PUP(a) *(a)++ +#else +# define OFF 1 +# define PUP(a) *++(a) +#endif + +/* + Decode literal, length, and distance codes and write out the resulting + literal and match bytes until either not enough input or output is + available, an end-of-block is encountered, or a data error is encountered. + When large enough input and output buffers are supplied to inflate(), for + example, a 16K input buffer and a 64K output buffer, more than 95% of the + inflate execution time is spent in this routine. + + Entry assumptions: + + state->mode == LEN + strm->avail_in >= 6 + strm->avail_out >= 258 + start >= strm->avail_out + state->bits < 8 + + On return, state->mode is one of: + + LEN -- ran out of enough output space or enough available input + TYPE -- reached end of block code, inflate() to interpret next block + BAD -- error in block data -/* macros for bit input with no checking and for returning unused bytes */ -#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<<k;k+=8;}} -#define UNGRAB {c=z->avail_in-n;c=(k>>3)<c?k>>3:c;n+=c;p-=c;k-=c<<3;} + Notes: -/* Called with number of bytes left to write in window at least 258 - (the maximum string length) and number of input bytes available - at least ten. The ten bytes are six bytes for the longest length/ - distance pair plus four bytes for overloading the bit buffer. */ + - The maximum input bits used by a length/distance pair is 15 bits for the + length code, 5 bits for the length extra, 15 bits for the distance code, + and 13 bits for the distance extra. This totals 48 bits, or six bytes. + Therefore if strm->avail_in >= 6, then there is enough input to avoid + checking for available input while decoding. -int inflate_fast(bl, bd, tl, td, s, z) -uInt bl, bd; -inflate_huft *tl; -inflate_huft *td; /* need separate declaration for Borland C++ */ -inflate_blocks_statef *s; -z_streamp z; + - The maximum bytes that a single length/distance pair can output is 258 + bytes, which is the maximum length that can be coded. inflate_fast() + requires strm->avail_out >= 258 for each loop to avoid checking for + output space. + */ +void inflate_fast(strm, start) +z_streamp strm; +unsigned start; /* inflate()'s starting value for strm->avail_out */ { - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Bytef *p; /* input data pointer */ - uInt n; /* bytes available there */ - Bytef *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - uInt ml; /* mask for literal/length tree */ - uInt md; /* mask for distance tree */ - uInt c; /* bytes to copy */ - uInt d; /* distance back to copy from */ - Bytef *r; /* copy source pointer */ - - /* load input, output, bit values */ - LOAD - - /* initialize masks */ - ml = inflate_mask[bl]; - md = inflate_mask[bd]; - - /* do until not enough input or output space for fast loop */ - do { /* assume called with m >= 258 && n >= 10 */ - /* get literal/length code */ - GRABBITS(20) /* max bits for literal/length code */ - if ((e = (t = tl + ((uInt)b & ml))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - continue; - } + struct inflate_state FAR *state; + unsigned char FAR *in; /* local strm->next_in */ + unsigned char FAR *last; /* while in < last, enough input available */ + unsigned char FAR *out; /* local strm->next_out */ + unsigned char FAR *beg; /* inflate()'s initial strm->next_out */ + unsigned char FAR *end; /* while out < end, enough space available */ + unsigned wsize; /* window size or zero if not using window */ + unsigned whave; /* valid bytes in the window */ + unsigned write; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if wsize != 0 */ + unsigned long hold; /* local strm->hold */ + unsigned bits; /* local strm->bits */ + code const FAR *lcode; /* local strm->lencode */ + code const FAR *dcode; /* local strm->distcode */ + unsigned lmask; /* mask for first level of length codes */ + unsigned dmask; /* mask for first level of distance codes */ + code this; /* retrieved table entry */ + unsigned op; /* code bits, operation, extra bits, or */ + /* window position, window bytes to copy */ + unsigned len; /* match length, unused bytes */ + unsigned dist; /* match distance */ + unsigned char FAR *from; /* where to copy match from */ + + /* copy state to local variables */ + state = (struct inflate_state FAR *)strm->state; + in = strm->next_in - OFF; + last = in + (strm->avail_in - 5); + out = strm->next_out - OFF; + beg = out - (start - strm->avail_out); + end = out + (strm->avail_out - 257); + wsize = state->wsize; + whave = state->whave; + write = state->write; + window = state->window; + hold = state->hold; + bits = state->bits; + lcode = state->lencode; + dcode = state->distcode; + lmask = (1U << state->lenbits) - 1; + dmask = (1U << state->distbits) - 1; + + /* decode literals and length/distances until end-of-block or not enough + input data or output space */ do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits for length */ - e &= 15; - c = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv((stderr, "inflate: * length %u\n", c)); - - /* decode distance base of block to copy */ - GRABBITS(15); /* max bits for distance code */ - e = (t = td + ((uInt)b & md))->exop; - do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits to add to distance base */ - e &= 15; - GRABBITS(e) /* get extra bits (up to 13) */ - d = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv((stderr, "inflate: * distance %u\n", d)); - - /* do the copy */ - m -= c; - r = q - d; - if (r < s->window) /* wrap if needed */ - { - do { - r += s->end - s->window; /* force pointer in window */ - } while (r < s->window); /* covers invalid distances */ - e = s->end - r; - if (c > e) - { - c -= e; /* wrapped copy */ - do { - *q++ = *r++; - } while (--e); - r = s->window; - do { - *q++ = *r++; - } while (--c); - } - else /* normal copy */ - { - *q++ = *r++; c--; - *q++ = *r++; c--; - do { - *q++ = *r++; - } while (--c); - } + if (bits < 15) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + this = lcode[hold & lmask]; + dolen: + op = (unsigned)(this.bits); + hold >>= op; + bits -= op; + op = (unsigned)(this.op); + if (op == 0) { /* literal */ + Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", this.val)); + PUP(out) = (unsigned char)(this.val); + } + else if (op & 16) { /* length base */ + len = (unsigned)(this.val); + op &= 15; /* number of extra bits */ + if (op) { + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + len += (unsigned)hold & ((1U << op) - 1); + hold >>= op; + bits -= op; + } + Tracevv((stderr, "inflate: length %u\n", len)); + if (bits < 15) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; } - else /* normal copy */ - { - *q++ = *r++; c--; - *q++ = *r++; c--; - do { - *q++ = *r++; - } while (--c); + this = dcode[hold & dmask]; + dodist: + op = (unsigned)(this.bits); + hold >>= op; + bits -= op; + op = (unsigned)(this.op); + if (op & 16) { /* distance base */ + dist = (unsigned)(this.val); + op &= 15; /* number of extra bits */ + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + if (bits < op) { + hold += (unsigned long)(PUP(in)) << bits; + bits += 8; + } + } + dist += (unsigned)hold & ((1U << op) - 1); + hold >>= op; + bits -= op; + Tracevv((stderr, "inflate: distance %u\n", dist)); + op = (unsigned)(out - beg); /* max distance in output */ + if (dist > op) { /* see if copy from window */ + op = dist - op; /* distance back in window */ + if (op > whave) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } + from = window - OFF; + if (write == 0) { /* very common case */ + from += wsize - op; + if (op < len) { /* some from window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + else if (write < op) { /* wrap around window */ + from += wsize + write - op; + op -= write; + if (op < len) { /* some from end of window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = window - OFF; + if (write < len) { /* some from start of window */ + op = write; + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + } + else { /* contiguous in window */ + from += write - op; + if (op < len) { /* some from window */ + len -= op; + do { + PUP(out) = PUP(from); + } while (--op); + from = out - dist; /* rest from output */ + } + } + while (len > 2) { + PUP(out) = PUP(from); + PUP(out) = PUP(from); + PUP(out) = PUP(from); + len -= 3; + } + if (len) { + PUP(out) = PUP(from); + if (len > 1) + PUP(out) = PUP(from); + } + } + else { + from = out - dist; /* copy direct from output */ + do { /* minimum length is three */ + PUP(out) = PUP(from); + PUP(out) = PUP(from); + PUP(out) = PUP(from); + len -= 3; + } while (len > 2); + if (len) { + PUP(out) = PUP(from); + if (len > 1) + PUP(out) = PUP(from); + } + } } + else if ((op & 64) == 0) { /* 2nd level distance code */ + this = dcode[this.val + (hold & ((1U << op) - 1))]; + goto dodist; + } + else { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + } + else if ((op & 64) == 0) { /* 2nd level length code */ + this = lcode[this.val + (hold & ((1U << op) - 1))]; + goto dolen; + } + else if (op & 32) { /* end-of-block */ + Tracevv((stderr, "inflate: end of block\n")); + state->mode = TYPE; + break; + } + else { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; break; - } - else if ((e & 64) == 0) - { - t += t->base; - e = (t += ((uInt)b & inflate_mask[e]))->exop; - } - else - { - z->msg = (char*)"invalid distance code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - break; - } - if ((e & 64) == 0) - { - t += t->base; - if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((stderr, t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - break; } - } - else if (e & 32) - { - Tracevv((stderr, "inflate: * end of block\n")); - UNGRAB - UPDATE - return Z_STREAM_END; - } - else - { - z->msg = (char*)"invalid literal/length code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - } while (m >= 258 && n >= 10); - - /* not enough input or output--restore pointers and return */ - UNGRAB - UPDATE - return Z_OK; + } while (in < last && out < end); + + /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ + len = bits >> 3; + in -= len; + bits -= len << 3; + hold &= (1U << bits) - 1; + + /* update state and return */ + strm->next_in = in + OFF; + strm->next_out = out + OFF; + strm->avail_in = (unsigned)(in < last ? 5 + (last - in) : 5 - (in - last)); + strm->avail_out = (unsigned)(out < end ? + 257 + (end - out) : 257 - (out - end)); + state->hold = hold; + state->bits = bits; + return; } + +/* + inflate_fast() speedups that turned out slower (on a PowerPC G3 750CXe): + - Using bit fields for code structure + - Different op definition to avoid & for extra bits (do & for table bits) + - Three separate decoding do-loops for direct, window, and write == 0 + - Special case for distance > 1 copies to do overlapped load and store copy + - Explicit branch predictions (based on measured branch probabilities) + - Deferring match copy and interspersed it with decoding subsequent codes + - Swapping literal/length else + - Swapping window/direct else + - Larger unrolled copy loops (three is about right) + - Moving len -= 3 statement into middle of loop + */ + +#endif /* !ASMINF */ diff --git a/zlib/inffast.h b/zlib/inffast.h index a31a4bbb058..1e88d2d97b5 100644 --- a/zlib/inffast.h +++ b/zlib/inffast.h @@ -1,6 +1,6 @@ /* inffast.h -- header to use inffast.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is @@ -8,10 +8,4 @@ subject to change. Applications should only use zlib.h. */ -extern int inflate_fast OF(( - uInt, - uInt, - inflate_huft *, - inflate_huft *, - inflate_blocks_statef *, - z_streamp )); +void inflate_fast OF((z_streamp strm, unsigned start)); diff --git a/zlib/inffixed.h b/zlib/inffixed.h index 77f7e763145..75ed4b5978d 100644 --- a/zlib/inffixed.h +++ b/zlib/inffixed.h @@ -1,151 +1,94 @@ -/* inffixed.h -- table for decoding fixed codes - * Generated automatically by the maketree.c program - */ + /* inffixed.h -- table for decoding fixed codes + * Generated automatically by makefixed(). + */ -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ + /* WARNING: this file should *not* be used by applications. It + is part of the implementation of the compression library and + is subject to change. Applications should only use zlib.h. + */ -local uInt fixed_bl = 9; -local uInt fixed_bd = 5; -local inflate_huft fixed_tl[] = { - {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, - {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},192}, - {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},160}, - {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},224}, - {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},144}, - {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},208}, - {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},176}, - {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},240}, - {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, - {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},200}, - {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},168}, - {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},232}, - {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},152}, - {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},216}, - {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},184}, - {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},248}, - {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, - {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},196}, - {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},164}, - {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},228}, - {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},148}, - {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},212}, - {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},180}, - {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},244}, - {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},204}, - {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},172}, - {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},236}, - {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},156}, - {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},220}, - {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},188}, - {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},252}, - {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, - {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},194}, - {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},162}, - {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},226}, - {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},146}, - {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},210}, - {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},178}, - {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},242}, - {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, - {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},202}, - {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},170}, - {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},234}, - {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},154}, - {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},218}, - {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},186}, - {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},250}, - {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, - {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},198}, - {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},166}, - {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},230}, - {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},150}, - {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},214}, - {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},182}, - {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},246}, - {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},206}, - {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},174}, - {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},238}, - {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},158}, - {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},222}, - {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},190}, - {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},254}, - {{{96,7}},256}, {{{0,8}},80}, {{{0,8}},16}, {{{84,8}},115}, - {{{82,7}},31}, {{{0,8}},112}, {{{0,8}},48}, {{{0,9}},193}, - {{{80,7}},10}, {{{0,8}},96}, {{{0,8}},32}, {{{0,9}},161}, - {{{0,8}},0}, {{{0,8}},128}, {{{0,8}},64}, {{{0,9}},225}, - {{{80,7}},6}, {{{0,8}},88}, {{{0,8}},24}, {{{0,9}},145}, - {{{83,7}},59}, {{{0,8}},120}, {{{0,8}},56}, {{{0,9}},209}, - {{{81,7}},17}, {{{0,8}},104}, {{{0,8}},40}, {{{0,9}},177}, - {{{0,8}},8}, {{{0,8}},136}, {{{0,8}},72}, {{{0,9}},241}, - {{{80,7}},4}, {{{0,8}},84}, {{{0,8}},20}, {{{85,8}},227}, - {{{83,7}},43}, {{{0,8}},116}, {{{0,8}},52}, {{{0,9}},201}, - {{{81,7}},13}, {{{0,8}},100}, {{{0,8}},36}, {{{0,9}},169}, - {{{0,8}},4}, {{{0,8}},132}, {{{0,8}},68}, {{{0,9}},233}, - {{{80,7}},8}, {{{0,8}},92}, {{{0,8}},28}, {{{0,9}},153}, - {{{84,7}},83}, {{{0,8}},124}, {{{0,8}},60}, {{{0,9}},217}, - {{{82,7}},23}, {{{0,8}},108}, {{{0,8}},44}, {{{0,9}},185}, - {{{0,8}},12}, {{{0,8}},140}, {{{0,8}},76}, {{{0,9}},249}, - {{{80,7}},3}, {{{0,8}},82}, {{{0,8}},18}, {{{85,8}},163}, - {{{83,7}},35}, {{{0,8}},114}, {{{0,8}},50}, {{{0,9}},197}, - {{{81,7}},11}, {{{0,8}},98}, {{{0,8}},34}, {{{0,9}},165}, - {{{0,8}},2}, {{{0,8}},130}, {{{0,8}},66}, {{{0,9}},229}, - {{{80,7}},7}, {{{0,8}},90}, {{{0,8}},26}, {{{0,9}},149}, - {{{84,7}},67}, {{{0,8}},122}, {{{0,8}},58}, {{{0,9}},213}, - {{{82,7}},19}, {{{0,8}},106}, {{{0,8}},42}, {{{0,9}},181}, - {{{0,8}},10}, {{{0,8}},138}, {{{0,8}},74}, {{{0,9}},245}, - {{{80,7}},5}, {{{0,8}},86}, {{{0,8}},22}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},118}, {{{0,8}},54}, {{{0,9}},205}, - {{{81,7}},15}, {{{0,8}},102}, {{{0,8}},38}, {{{0,9}},173}, - {{{0,8}},6}, {{{0,8}},134}, {{{0,8}},70}, {{{0,9}},237}, - {{{80,7}},9}, {{{0,8}},94}, {{{0,8}},30}, {{{0,9}},157}, - {{{84,7}},99}, {{{0,8}},126}, {{{0,8}},62}, {{{0,9}},221}, - {{{82,7}},27}, {{{0,8}},110}, {{{0,8}},46}, {{{0,9}},189}, - {{{0,8}},14}, {{{0,8}},142}, {{{0,8}},78}, {{{0,9}},253}, - {{{96,7}},256}, {{{0,8}},81}, {{{0,8}},17}, {{{85,8}},131}, - {{{82,7}},31}, {{{0,8}},113}, {{{0,8}},49}, {{{0,9}},195}, - {{{80,7}},10}, {{{0,8}},97}, {{{0,8}},33}, {{{0,9}},163}, - {{{0,8}},1}, {{{0,8}},129}, {{{0,8}},65}, {{{0,9}},227}, - {{{80,7}},6}, {{{0,8}},89}, {{{0,8}},25}, {{{0,9}},147}, - {{{83,7}},59}, {{{0,8}},121}, {{{0,8}},57}, {{{0,9}},211}, - {{{81,7}},17}, {{{0,8}},105}, {{{0,8}},41}, {{{0,9}},179}, - {{{0,8}},9}, {{{0,8}},137}, {{{0,8}},73}, {{{0,9}},243}, - {{{80,7}},4}, {{{0,8}},85}, {{{0,8}},21}, {{{80,8}},258}, - {{{83,7}},43}, {{{0,8}},117}, {{{0,8}},53}, {{{0,9}},203}, - {{{81,7}},13}, {{{0,8}},101}, {{{0,8}},37}, {{{0,9}},171}, - {{{0,8}},5}, {{{0,8}},133}, {{{0,8}},69}, {{{0,9}},235}, - {{{80,7}},8}, {{{0,8}},93}, {{{0,8}},29}, {{{0,9}},155}, - {{{84,7}},83}, {{{0,8}},125}, {{{0,8}},61}, {{{0,9}},219}, - {{{82,7}},23}, {{{0,8}},109}, {{{0,8}},45}, {{{0,9}},187}, - {{{0,8}},13}, {{{0,8}},141}, {{{0,8}},77}, {{{0,9}},251}, - {{{80,7}},3}, {{{0,8}},83}, {{{0,8}},19}, {{{85,8}},195}, - {{{83,7}},35}, {{{0,8}},115}, {{{0,8}},51}, {{{0,9}},199}, - {{{81,7}},11}, {{{0,8}},99}, {{{0,8}},35}, {{{0,9}},167}, - {{{0,8}},3}, {{{0,8}},131}, {{{0,8}},67}, {{{0,9}},231}, - {{{80,7}},7}, {{{0,8}},91}, {{{0,8}},27}, {{{0,9}},151}, - {{{84,7}},67}, {{{0,8}},123}, {{{0,8}},59}, {{{0,9}},215}, - {{{82,7}},19}, {{{0,8}},107}, {{{0,8}},43}, {{{0,9}},183}, - {{{0,8}},11}, {{{0,8}},139}, {{{0,8}},75}, {{{0,9}},247}, - {{{80,7}},5}, {{{0,8}},87}, {{{0,8}},23}, {{{192,8}},0}, - {{{83,7}},51}, {{{0,8}},119}, {{{0,8}},55}, {{{0,9}},207}, - {{{81,7}},15}, {{{0,8}},103}, {{{0,8}},39}, {{{0,9}},175}, - {{{0,8}},7}, {{{0,8}},135}, {{{0,8}},71}, {{{0,9}},239}, - {{{80,7}},9}, {{{0,8}},95}, {{{0,8}},31}, {{{0,9}},159}, - {{{84,7}},99}, {{{0,8}},127}, {{{0,8}},63}, {{{0,9}},223}, - {{{82,7}},27}, {{{0,8}},111}, {{{0,8}},47}, {{{0,9}},191}, - {{{0,8}},15}, {{{0,8}},143}, {{{0,8}},79}, {{{0,9}},255} - }; -local inflate_huft fixed_td[] = { - {{{80,5}},1}, {{{87,5}},257}, {{{83,5}},17}, {{{91,5}},4097}, - {{{81,5}},5}, {{{89,5}},1025}, {{{85,5}},65}, {{{93,5}},16385}, - {{{80,5}},3}, {{{88,5}},513}, {{{84,5}},33}, {{{92,5}},8193}, - {{{82,5}},9}, {{{90,5}},2049}, {{{86,5}},129}, {{{192,5}},24577}, - {{{80,5}},2}, {{{87,5}},385}, {{{83,5}},25}, {{{91,5}},6145}, - {{{81,5}},7}, {{{89,5}},1537}, {{{85,5}},97}, {{{93,5}},24577}, - {{{80,5}},4}, {{{88,5}},769}, {{{84,5}},49}, {{{92,5}},12289}, - {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} - }; + static const code lenfix[512] = { + {96,7,0},{0,8,80},{0,8,16},{20,8,115},{18,7,31},{0,8,112},{0,8,48}, + {0,9,192},{16,7,10},{0,8,96},{0,8,32},{0,9,160},{0,8,0},{0,8,128}, + {0,8,64},{0,9,224},{16,7,6},{0,8,88},{0,8,24},{0,9,144},{19,7,59}, + {0,8,120},{0,8,56},{0,9,208},{17,7,17},{0,8,104},{0,8,40},{0,9,176}, + {0,8,8},{0,8,136},{0,8,72},{0,9,240},{16,7,4},{0,8,84},{0,8,20}, + {21,8,227},{19,7,43},{0,8,116},{0,8,52},{0,9,200},{17,7,13},{0,8,100}, + {0,8,36},{0,9,168},{0,8,4},{0,8,132},{0,8,68},{0,9,232},{16,7,8}, + {0,8,92},{0,8,28},{0,9,152},{20,7,83},{0,8,124},{0,8,60},{0,9,216}, + {18,7,23},{0,8,108},{0,8,44},{0,9,184},{0,8,12},{0,8,140},{0,8,76}, + {0,9,248},{16,7,3},{0,8,82},{0,8,18},{21,8,163},{19,7,35},{0,8,114}, + {0,8,50},{0,9,196},{17,7,11},{0,8,98},{0,8,34},{0,9,164},{0,8,2}, + {0,8,130},{0,8,66},{0,9,228},{16,7,7},{0,8,90},{0,8,26},{0,9,148}, + {20,7,67},{0,8,122},{0,8,58},{0,9,212},{18,7,19},{0,8,106},{0,8,42}, + {0,9,180},{0,8,10},{0,8,138},{0,8,74},{0,9,244},{16,7,5},{0,8,86}, + {0,8,22},{64,8,0},{19,7,51},{0,8,118},{0,8,54},{0,9,204},{17,7,15}, + {0,8,102},{0,8,38},{0,9,172},{0,8,6},{0,8,134},{0,8,70},{0,9,236}, + {16,7,9},{0,8,94},{0,8,30},{0,9,156},{20,7,99},{0,8,126},{0,8,62}, + {0,9,220},{18,7,27},{0,8,110},{0,8,46},{0,9,188},{0,8,14},{0,8,142}, + {0,8,78},{0,9,252},{96,7,0},{0,8,81},{0,8,17},{21,8,131},{18,7,31}, + {0,8,113},{0,8,49},{0,9,194},{16,7,10},{0,8,97},{0,8,33},{0,9,162}, + {0,8,1},{0,8,129},{0,8,65},{0,9,226},{16,7,6},{0,8,89},{0,8,25}, + {0,9,146},{19,7,59},{0,8,121},{0,8,57},{0,9,210},{17,7,17},{0,8,105}, + {0,8,41},{0,9,178},{0,8,9},{0,8,137},{0,8,73},{0,9,242},{16,7,4}, + {0,8,85},{0,8,21},{16,8,258},{19,7,43},{0,8,117},{0,8,53},{0,9,202}, + {17,7,13},{0,8,101},{0,8,37},{0,9,170},{0,8,5},{0,8,133},{0,8,69}, + {0,9,234},{16,7,8},{0,8,93},{0,8,29},{0,9,154},{20,7,83},{0,8,125}, + {0,8,61},{0,9,218},{18,7,23},{0,8,109},{0,8,45},{0,9,186},{0,8,13}, + {0,8,141},{0,8,77},{0,9,250},{16,7,3},{0,8,83},{0,8,19},{21,8,195}, + {19,7,35},{0,8,115},{0,8,51},{0,9,198},{17,7,11},{0,8,99},{0,8,35}, + {0,9,166},{0,8,3},{0,8,131},{0,8,67},{0,9,230},{16,7,7},{0,8,91}, + {0,8,27},{0,9,150},{20,7,67},{0,8,123},{0,8,59},{0,9,214},{18,7,19}, + {0,8,107},{0,8,43},{0,9,182},{0,8,11},{0,8,139},{0,8,75},{0,9,246}, + {16,7,5},{0,8,87},{0,8,23},{64,8,0},{19,7,51},{0,8,119},{0,8,55}, + {0,9,206},{17,7,15},{0,8,103},{0,8,39},{0,9,174},{0,8,7},{0,8,135}, + {0,8,71},{0,9,238},{16,7,9},{0,8,95},{0,8,31},{0,9,158},{20,7,99}, + {0,8,127},{0,8,63},{0,9,222},{18,7,27},{0,8,111},{0,8,47},{0,9,190}, + {0,8,15},{0,8,143},{0,8,79},{0,9,254},{96,7,0},{0,8,80},{0,8,16}, + {20,8,115},{18,7,31},{0,8,112},{0,8,48},{0,9,193},{16,7,10},{0,8,96}, + {0,8,32},{0,9,161},{0,8,0},{0,8,128},{0,8,64},{0,9,225},{16,7,6}, + {0,8,88},{0,8,24},{0,9,145},{19,7,59},{0,8,120},{0,8,56},{0,9,209}, + {17,7,17},{0,8,104},{0,8,40},{0,9,177},{0,8,8},{0,8,136},{0,8,72}, + {0,9,241},{16,7,4},{0,8,84},{0,8,20},{21,8,227},{19,7,43},{0,8,116}, + {0,8,52},{0,9,201},{17,7,13},{0,8,100},{0,8,36},{0,9,169},{0,8,4}, + {0,8,132},{0,8,68},{0,9,233},{16,7,8},{0,8,92},{0,8,28},{0,9,153}, + {20,7,83},{0,8,124},{0,8,60},{0,9,217},{18,7,23},{0,8,108},{0,8,44}, + {0,9,185},{0,8,12},{0,8,140},{0,8,76},{0,9,249},{16,7,3},{0,8,82}, + {0,8,18},{21,8,163},{19,7,35},{0,8,114},{0,8,50},{0,9,197},{17,7,11}, + {0,8,98},{0,8,34},{0,9,165},{0,8,2},{0,8,130},{0,8,66},{0,9,229}, + {16,7,7},{0,8,90},{0,8,26},{0,9,149},{20,7,67},{0,8,122},{0,8,58}, + {0,9,213},{18,7,19},{0,8,106},{0,8,42},{0,9,181},{0,8,10},{0,8,138}, + {0,8,74},{0,9,245},{16,7,5},{0,8,86},{0,8,22},{64,8,0},{19,7,51}, + {0,8,118},{0,8,54},{0,9,205},{17,7,15},{0,8,102},{0,8,38},{0,9,173}, + {0,8,6},{0,8,134},{0,8,70},{0,9,237},{16,7,9},{0,8,94},{0,8,30}, + {0,9,157},{20,7,99},{0,8,126},{0,8,62},{0,9,221},{18,7,27},{0,8,110}, + {0,8,46},{0,9,189},{0,8,14},{0,8,142},{0,8,78},{0,9,253},{96,7,0}, + {0,8,81},{0,8,17},{21,8,131},{18,7,31},{0,8,113},{0,8,49},{0,9,195}, + {16,7,10},{0,8,97},{0,8,33},{0,9,163},{0,8,1},{0,8,129},{0,8,65}, + {0,9,227},{16,7,6},{0,8,89},{0,8,25},{0,9,147},{19,7,59},{0,8,121}, + {0,8,57},{0,9,211},{17,7,17},{0,8,105},{0,8,41},{0,9,179},{0,8,9}, + {0,8,137},{0,8,73},{0,9,243},{16,7,4},{0,8,85},{0,8,21},{16,8,258}, + {19,7,43},{0,8,117},{0,8,53},{0,9,203},{17,7,13},{0,8,101},{0,8,37}, + {0,9,171},{0,8,5},{0,8,133},{0,8,69},{0,9,235},{16,7,8},{0,8,93}, + {0,8,29},{0,9,155},{20,7,83},{0,8,125},{0,8,61},{0,9,219},{18,7,23}, + {0,8,109},{0,8,45},{0,9,187},{0,8,13},{0,8,141},{0,8,77},{0,9,251}, + {16,7,3},{0,8,83},{0,8,19},{21,8,195},{19,7,35},{0,8,115},{0,8,51}, + {0,9,199},{17,7,11},{0,8,99},{0,8,35},{0,9,167},{0,8,3},{0,8,131}, + {0,8,67},{0,9,231},{16,7,7},{0,8,91},{0,8,27},{0,9,151},{20,7,67}, + {0,8,123},{0,8,59},{0,9,215},{18,7,19},{0,8,107},{0,8,43},{0,9,183}, + {0,8,11},{0,8,139},{0,8,75},{0,9,247},{16,7,5},{0,8,87},{0,8,23}, + {64,8,0},{19,7,51},{0,8,119},{0,8,55},{0,9,207},{17,7,15},{0,8,103}, + {0,8,39},{0,9,175},{0,8,7},{0,8,135},{0,8,71},{0,9,239},{16,7,9}, + {0,8,95},{0,8,31},{0,9,159},{20,7,99},{0,8,127},{0,8,63},{0,9,223}, + {18,7,27},{0,8,111},{0,8,47},{0,9,191},{0,8,15},{0,8,143},{0,8,79}, + {0,9,255} + }; + + static const code distfix[32] = { + {16,5,1},{23,5,257},{19,5,17},{27,5,4097},{17,5,5},{25,5,1025}, + {21,5,65},{29,5,16385},{16,5,3},{24,5,513},{20,5,33},{28,5,8193}, + {18,5,9},{26,5,2049},{22,5,129},{64,5,0},{16,5,2},{23,5,385}, + {19,5,25},{27,5,6145},{17,5,7},{25,5,1537},{21,5,97},{29,5,24577}, + {16,5,4},{24,5,769},{20,5,49},{28,5,12289},{18,5,13},{26,5,3073}, + {22,5,193},{64,5,0} + }; diff --git a/zlib/inflate.c b/zlib/inflate.c index dfb2e867d81..a53b5c7446e 100644 --- a/zlib/inflate.c +++ b/zlib/inflate.c @@ -1,366 +1,1270 @@ -/* inflate.c -- zlib interface to inflate modules - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h +/* inflate.c -- zlib decompression + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* + * Change history: + * + * 1.2.beta0 24 Nov 2002 + * - First version -- complete rewrite of inflate to simplify code, avoid + * creation of window when not needed, minimize use of window when it is + * needed, make inffast.c even faster, implement gzip decoding, and to + * improve code readability and style over the previous zlib inflate code + * + * 1.2.beta1 25 Nov 2002 + * - Use pointers for available input and output checking in inffast.c + * - Remove input and output counters in inffast.c + * - Change inffast.c entry and loop from avail_in >= 7 to >= 6 + * - Remove unnecessary second byte pull from length extra in inffast.c + * - Unroll direct copy to three copies per loop in inffast.c + * + * 1.2.beta2 4 Dec 2002 + * - Change external routine names to reduce potential conflicts + * - Correct filename to inffixed.h for fixed tables in inflate.c + * - Make hbuf[] unsigned char to match parameter type in inflate.c + * - Change strm->next_out[-state->offset] to *(strm->next_out - state->offset) + * to avoid negation problem on Alphas (64 bit) in inflate.c + * + * 1.2.beta3 22 Dec 2002 + * - Add comments on state->bits assertion in inffast.c + * - Add comments on op field in inftrees.h + * - Fix bug in reuse of allocated window after inflateReset() + * - Remove bit fields--back to byte structure for speed + * - Remove distance extra == 0 check in inflate_fast()--only helps for lengths + * - Change post-increments to pre-increments in inflate_fast(), PPC biased? + * - Add compile time option, POSTINC, to use post-increments instead (Intel?) + * - Make MATCH copy in inflate() much faster for when inflate_fast() not used + * - Use local copies of stream next and avail values, as well as local bit + * buffer and bit count in inflate()--for speed when inflate_fast() not used + * + * 1.2.beta4 1 Jan 2003 + * - Split ptr - 257 statements in inflate_table() to avoid compiler warnings + * - Move a comment on output buffer sizes from inffast.c to inflate.c + * - Add comments in inffast.c to introduce the inflate_fast() routine + * - Rearrange window copies in inflate_fast() for speed and simplification + * - Unroll last copy for window match in inflate_fast() + * - Use local copies of window variables in inflate_fast() for speed + * - Pull out common write == 0 case for speed in inflate_fast() + * - Make op and len in inflate_fast() unsigned for consistency + * - Add FAR to lcode and dcode declarations in inflate_fast() + * - Simplified bad distance check in inflate_fast() + * - Added inflateBackInit(), inflateBack(), and inflateBackEnd() in new + * source file infback.c to provide a call-back interface to inflate for + * programs like gzip and unzip -- uses window as output buffer to avoid + * window copying + * + * 1.2.beta5 1 Jan 2003 + * - Improved inflateBack() interface to allow the caller to provide initial + * input in strm. + * - Fixed stored blocks bug in inflateBack() + * + * 1.2.beta6 4 Jan 2003 + * - Added comments in inffast.c on effectiveness of POSTINC + * - Typecasting all around to reduce compiler warnings + * - Changed loops from while (1) or do {} while (1) to for (;;), again to + * make compilers happy + * - Changed type of window in inflateBackInit() to unsigned char * + * + * 1.2.beta7 27 Jan 2003 + * - Changed many types to unsigned or unsigned short to avoid warnings + * - Added inflateCopy() function + * + * 1.2.0 9 Mar 2003 + * - Changed inflateBack() interface to provide separate opaque descriptors + * for the in() and out() functions + * - Changed inflateBack() argument and in_func typedef to swap the length + * and buffer address return values for the input function + * - Check next_in and next_out for Z_NULL on entry to inflate() + * + * The history for versions after 1.2.0 are in ChangeLog in zlib distribution. */ #include "zutil.h" -#include "infblock.h" - -struct inflate_blocks_state {int dummy;}; /* for buggy compilers */ - -typedef enum { - METHOD, /* waiting for method byte */ - FLAG, /* waiting for flag byte */ - DICT4, /* four dictionary check bytes to go */ - DICT3, /* three dictionary check bytes to go */ - DICT2, /* two dictionary check bytes to go */ - DICT1, /* one dictionary check byte to go */ - DICT0, /* waiting for inflateSetDictionary */ - BLOCKS, /* decompressing blocks */ - CHECK4, /* four check bytes to go */ - CHECK3, /* three check bytes to go */ - CHECK2, /* two check bytes to go */ - CHECK1, /* one check byte to go */ - DONE, /* finished check, done */ - BAD} /* got an error--stay here */ -inflate_mode; - -/* inflate private state */ -struct internal_state { - - /* mode */ - inflate_mode mode; /* current inflate mode */ - - /* mode dependent information */ - union { - uInt method; /* if FLAGS, method byte */ - struct { - uLong was; /* computed check value */ - uLong need; /* stream check value */ - } check; /* if CHECK, check values to compare */ - uInt marker; /* if BAD, inflateSync's marker bytes count */ - } sub; /* submode */ - - /* mode independent information */ - int nowrap; /* flag for no wrapper */ - uInt wbits; /* log2(window size) (8..15, defaults to 15) */ - inflate_blocks_statef - *blocks; /* current inflate_blocks state */ - -}; - - -int ZEXPORT inflateReset(z) -z_streamp z; -{ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - z->total_in = z->total_out = 0; - z->msg = Z_NULL; - z->state->mode = z->state->nowrap ? BLOCKS : METHOD; - inflate_blocks_reset(z->state->blocks, z, Z_NULL); - Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} +#include "inftrees.h" +#include "inflate.h" +#include "inffast.h" +#ifdef MAKEFIXED +# ifndef BUILDFIXED +# define BUILDFIXED +# endif +#endif + +/* function prototypes */ +local void fixedtables OF((struct inflate_state FAR *state)); +local int updatewindow OF((z_streamp strm, unsigned out)); +#ifdef BUILDFIXED + void makefixed OF((void)); +#endif +local unsigned syncsearch OF((unsigned FAR *have, unsigned char FAR *buf, + unsigned len)); -int ZEXPORT inflateEnd(z) -z_streamp z; +int ZEXPORT inflateReset(strm) +z_streamp strm; { - if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->blocks != Z_NULL) - inflate_blocks_free(z->state->blocks, z); - ZFREE(z, z->state); - z->state = Z_NULL; - Tracev((stderr, "inflate: end\n")); - return Z_OK; -} + struct inflate_state FAR *state; + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + strm->total_in = strm->total_out = state->total = 0; + strm->msg = Z_NULL; + state->mode = HEAD; + state->last = 0; + state->havedict = 0; + state->wsize = 0; + state->whave = 0; + state->hold = 0; + state->bits = 0; + state->lencode = state->distcode = state->next = state->codes; + Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} -int ZEXPORT inflateInit2_(z, w, version, stream_size) -z_streamp z; -int w; +int ZEXPORT inflateInit2_(strm, windowBits, version, stream_size) +z_streamp strm; +int windowBits; const char *version; int stream_size; { - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != sizeof(z_stream)) - return Z_VERSION_ERROR; - - /* initialize state */ - if (z == Z_NULL) - return Z_STREAM_ERROR; - z->msg = Z_NULL; - if (z->zalloc == Z_NULL) - { - z->zalloc = zcalloc; - z->opaque = (voidpf)0; - } - if (z->zfree == Z_NULL) z->zfree = zcfree; - if ((z->state = (struct internal_state FAR *) - ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) - return Z_MEM_ERROR; - z->state->blocks = Z_NULL; - - /* handle undocumented nowrap option (no zlib header or check) */ - z->state->nowrap = 0; - if (w < 0) - { - w = - w; - z->state->nowrap = 1; - } - - /* set window size */ - if (w < 8 || w > 15) - { - inflateEnd(z); - return Z_STREAM_ERROR; - } - z->state->wbits = (uInt)w; - - /* create inflate_blocks state */ - if ((z->state->blocks = - inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) - == Z_NULL) - { - inflateEnd(z); - return Z_MEM_ERROR; - } - Tracev((stderr, "inflate: allocated\n")); - - /* reset state */ - inflateReset(z); - return Z_OK; -} + struct inflate_state FAR *state; + if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || + stream_size != (int)(sizeof(z_stream))) + return Z_VERSION_ERROR; + if (strm == Z_NULL) return Z_STREAM_ERROR; + strm->msg = Z_NULL; /* in case we return an error */ + if (strm->zalloc == (alloc_func)0) { + strm->zalloc = zcalloc; + strm->opaque = (voidpf)0; + } + if (strm->zfree == (free_func)0) strm->zfree = zcfree; + state = (struct inflate_state FAR *) + ZALLOC(strm, 1, sizeof(struct inflate_state)); + if (state == Z_NULL) return Z_MEM_ERROR; + Tracev((stderr, "inflate: allocated\n")); + strm->state = (voidpf)state; + if (windowBits < 0) { + state->wrap = 0; + windowBits = -windowBits; + } + else { + state->wrap = (windowBits >> 4) + 1; +#ifdef GUNZIP + if (windowBits < 48) windowBits &= 15; +#endif + } + if (windowBits < 8 || windowBits > 15) { + ZFREE(strm, state); + strm->state = Z_NULL; + return Z_STREAM_ERROR; + } + state->wbits = (unsigned)windowBits; + state->window = Z_NULL; + return inflateReset(strm); +} -int ZEXPORT inflateInit_(z, version, stream_size) -z_streamp z; +int ZEXPORT inflateInit_(strm, version, stream_size) +z_streamp strm; const char *version; int stream_size; { - return inflateInit2_(z, DEF_WBITS, version, stream_size); + return inflateInit2_(strm, DEF_WBITS, version, stream_size); +} + +/* + Return state with length and distance decoding tables and index sizes set to + fixed code decoding. Normally this returns fixed tables from inffixed.h. + If BUILDFIXED is defined, then instead this routine builds the tables the + first time it's called, and returns those tables the first time and + thereafter. This reduces the size of the code by about 2K bytes, in + exchange for a little execution time. However, BUILDFIXED should not be + used for threaded applications, since the rewriting of the tables and virgin + may not be thread-safe. + */ +local void fixedtables(state) +struct inflate_state FAR *state; +{ +#ifdef BUILDFIXED + static int virgin = 1; + static code *lenfix, *distfix; + static code fixed[544]; + + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + unsigned sym, bits; + static code *next; + + /* literal/length table */ + sym = 0; + while (sym < 144) state->lens[sym++] = 8; + while (sym < 256) state->lens[sym++] = 9; + while (sym < 280) state->lens[sym++] = 7; + while (sym < 288) state->lens[sym++] = 8; + next = fixed; + lenfix = next; + bits = 9; + inflate_table(LENS, state->lens, 288, &(next), &(bits), state->work); + + /* distance table */ + sym = 0; + while (sym < 32) state->lens[sym++] = 5; + distfix = next; + bits = 5; + inflate_table(DISTS, state->lens, 32, &(next), &(bits), state->work); + + /* do this just once */ + virgin = 0; + } +#else /* !BUILDFIXED */ +# include "inffixed.h" +#endif /* BUILDFIXED */ + state->lencode = lenfix; + state->lenbits = 9; + state->distcode = distfix; + state->distbits = 5; } +#ifdef MAKEFIXED +#include <stdio.h> -#define NEEDBYTE {if(z->avail_in==0)return r;r=f;} -#define NEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) +/* + Write out the inffixed.h that is #include'd above. Defining MAKEFIXED also + defines BUILDFIXED, so the tables are built on the fly. makefixed() writes + those tables to stdout, which would be piped to inffixed.h. A small program + can simply call makefixed to do this: -int ZEXPORT inflate(z, f) -z_streamp z; -int f; + void makefixed(void); + + int main(void) + { + makefixed(); + return 0; + } + + Then that can be linked with zlib built with MAKEFIXED defined and run: + + a.out > inffixed.h + */ +void makefixed() { - int r; - uInt b; - - if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) - return Z_STREAM_ERROR; - f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; - r = Z_BUF_ERROR; - while (1) switch (z->state->mode) - { - case METHOD: - NEEDBYTE - if (((z->state->sub.method = NEXTBYTE) & 0xf) != Z_DEFLATED) - { - z->state->mode = BAD; - z->msg = (char*)"unknown compression method"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - if ((z->state->sub.method >> 4) + 8 > z->state->wbits) - { - z->state->mode = BAD; - z->msg = (char*)"invalid window size"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - z->state->mode = FLAG; - case FLAG: - NEEDBYTE - b = NEXTBYTE; - if (((z->state->sub.method << 8) + b) % 31) - { - z->state->mode = BAD; - z->msg = (char*)"incorrect header check"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - Tracev((stderr, "inflate: zlib header ok\n")); - if (!(b & PRESET_DICT)) - { - z->state->mode = BLOCKS; - break; - } - z->state->mode = DICT4; - case DICT4: - NEEDBYTE - z->state->sub.check.need = (uLong)NEXTBYTE << 24; - z->state->mode = DICT3; - case DICT3: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 16; - z->state->mode = DICT2; - case DICT2: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 8; - z->state->mode = DICT1; - case DICT1: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE; - z->adler = z->state->sub.check.need; - z->state->mode = DICT0; - return Z_NEED_DICT; - case DICT0: - z->state->mode = BAD; - z->msg = (char*)"need dictionary"; - z->state->sub.marker = 0; /* can try inflateSync */ - return Z_STREAM_ERROR; - case BLOCKS: - r = inflate_blocks(z->state->blocks, z, r); - if (r == Z_DATA_ERROR) - { - z->state->mode = BAD; - z->state->sub.marker = 0; /* can try inflateSync */ - break; - } - if (r == Z_OK) - r = f; - if (r != Z_STREAM_END) - return r; - r = f; - inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); - if (z->state->nowrap) - { - z->state->mode = DONE; - break; - } - z->state->mode = CHECK4; - case CHECK4: - NEEDBYTE - z->state->sub.check.need = (uLong)NEXTBYTE << 24; - z->state->mode = CHECK3; - case CHECK3: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 16; - z->state->mode = CHECK2; - case CHECK2: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE << 8; - z->state->mode = CHECK1; - case CHECK1: - NEEDBYTE - z->state->sub.check.need += (uLong)NEXTBYTE; - - if (z->state->sub.check.was != z->state->sub.check.need) - { - z->state->mode = BAD; - z->msg = (char*)"incorrect data check"; - z->state->sub.marker = 5; /* can't try inflateSync */ + unsigned low, size; + struct inflate_state state; + + fixedtables(&state); + puts(" /* inffixed.h -- table for decoding fixed codes"); + puts(" * Generated automatically by makefixed()."); + puts(" */"); + puts(""); + puts(" /* WARNING: this file should *not* be used by applications."); + puts(" It is part of the implementation of this library and is"); + puts(" subject to change. Applications should only use zlib.h."); + puts(" */"); + puts(""); + size = 1U << 9; + printf(" static const code lenfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 7) == 0) printf("\n "); + printf("{%u,%u,%d}", state.lencode[low].op, state.lencode[low].bits, + state.lencode[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); + size = 1U << 5; + printf("\n static const code distfix[%u] = {", size); + low = 0; + for (;;) { + if ((low % 6) == 0) printf("\n "); + printf("{%u,%u,%d}", state.distcode[low].op, state.distcode[low].bits, + state.distcode[low].val); + if (++low == size) break; + putchar(','); + } + puts("\n };"); +} +#endif /* MAKEFIXED */ + +/* + Update the window with the last wsize (normally 32K) bytes written before + returning. If window does not exist yet, create it. This is only called + when a window is already in use, or when output has been written during this + inflate call, but the end of the deflate stream has not been reached yet. + It is also called to create a window for dictionary data when a dictionary + is loaded. + + Providing output buffers larger than 32K to inflate() should provide a speed + advantage, since only the last 32K of output is copied to the sliding window + upon return from inflate(), and since all distances after the first 32K of + output will fall in the output data, making match copies simpler and faster. + The advantage may be dependent on the size of the processor's data caches. + */ +local int updatewindow(strm, out) +z_streamp strm; +unsigned out; +{ + struct inflate_state FAR *state; + unsigned copy, dist; + + state = (struct inflate_state FAR *)strm->state; + + /* if it hasn't been done already, allocate space for the window */ + if (state->window == Z_NULL) { + state->window = (unsigned char FAR *) + ZALLOC(strm, 1U << state->wbits, + sizeof(unsigned char)); + if (state->window == Z_NULL) return 1; + } + + /* if window not in use yet, initialize */ + if (state->wsize == 0) { + state->wsize = 1U << state->wbits; + state->write = 0; + state->whave = 0; + } + + /* copy state->wsize or less output bytes into the circular window */ + copy = out - strm->avail_out; + if (copy >= state->wsize) { + zmemcpy(state->window, strm->next_out - state->wsize, state->wsize); + state->write = 0; + state->whave = state->wsize; + } + else { + dist = state->wsize - state->write; + if (dist > copy) dist = copy; + zmemcpy(state->window + state->write, strm->next_out - copy, dist); + copy -= dist; + if (copy) { + zmemcpy(state->window, strm->next_out - copy, copy); + state->write = copy; + state->whave = state->wsize; + } + else { + state->write += dist; + if (state->write == state->wsize) state->write = 0; + if (state->whave < state->wsize) state->whave += dist; + } + } + return 0; +} + +/* Macros for inflate(): */ + +/* check function to use adler32() for zlib or crc32() for gzip */ +#ifdef GUNZIP +# define UPDATE(check, buf, len) \ + (state->flags ? crc32(check, buf, len) : adler32(check, buf, len)) +#else +# define UPDATE(check, buf, len) adler32(check, buf, len) +#endif + +/* check macros for header crc */ +#ifdef GUNZIP +# define CRC2(check, word) \ + do { \ + hbuf[0] = (unsigned char)(word); \ + hbuf[1] = (unsigned char)((word) >> 8); \ + check = crc32(check, hbuf, 2); \ + } while (0) + +# define CRC4(check, word) \ + do { \ + hbuf[0] = (unsigned char)(word); \ + hbuf[1] = (unsigned char)((word) >> 8); \ + hbuf[2] = (unsigned char)((word) >> 16); \ + hbuf[3] = (unsigned char)((word) >> 24); \ + check = crc32(check, hbuf, 4); \ + } while (0) +#endif + +/* Load registers with state in inflate() for speed */ +#define LOAD() \ + do { \ + put = strm->next_out; \ + left = strm->avail_out; \ + next = strm->next_in; \ + have = strm->avail_in; \ + hold = state->hold; \ + bits = state->bits; \ + } while (0) + +/* Restore state from registers in inflate() */ +#define RESTORE() \ + do { \ + strm->next_out = put; \ + strm->avail_out = left; \ + strm->next_in = next; \ + strm->avail_in = have; \ + state->hold = hold; \ + state->bits = bits; \ + } while (0) + +/* Clear the input bit accumulator */ +#define INITBITS() \ + do { \ + hold = 0; \ + bits = 0; \ + } while (0) + +/* Get a byte of input into the bit accumulator, or return from inflate() + if there is no input available. */ +#define PULLBYTE() \ + do { \ + if (have == 0) goto inf_leave; \ + have--; \ + hold += (unsigned long)(*next++) << bits; \ + bits += 8; \ + } while (0) + +/* Assure that there are at least n bits in the bit accumulator. If there is + not enough available input to do that, then return from inflate(). */ +#define NEEDBITS(n) \ + do { \ + while (bits < (unsigned)(n)) \ + PULLBYTE(); \ + } while (0) + +/* Return the low n bits of the bit accumulator (n < 16) */ +#define BITS(n) \ + ((unsigned)hold & ((1U << (n)) - 1)) + +/* Remove n bits from the bit accumulator */ +#define DROPBITS(n) \ + do { \ + hold >>= (n); \ + bits -= (unsigned)(n); \ + } while (0) + +/* Remove zero to seven bits as needed to go to a byte boundary */ +#define BYTEBITS() \ + do { \ + hold >>= bits & 7; \ + bits -= bits & 7; \ + } while (0) + +/* Reverse the bytes in a 32-bit value */ +#define REVERSE(q) \ + ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \ + (((q) & 0xff00) << 8) + (((q) & 0xff) << 24)) + +/* + inflate() uses a state machine to process as much input data and generate as + much output data as possible before returning. The state machine is + structured roughly as follows: + + for (;;) switch (state) { + ... + case STATEn: + if (not enough input data or output space to make progress) + return; + ... make progress ... + state = STATEm; break; - } - Tracev((stderr, "inflate: zlib check ok\n")); - z->state->mode = DONE; - case DONE: - return Z_STREAM_END; - case BAD: - return Z_DATA_ERROR; - default: - return Z_STREAM_ERROR; - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ + ... + } + + so when inflate() is called again, the same case is attempted again, and + if the appropriate resources are provided, the machine proceeds to the + next state. The NEEDBITS() macro is usually the way the state evaluates + whether it can proceed or should return. NEEDBITS() does the return if + the requested bits are not available. The typical use of the BITS macros + is: + + NEEDBITS(n); + ... do something with BITS(n) ... + DROPBITS(n); + + where NEEDBITS(n) either returns from inflate() if there isn't enough + input left to load n bits into the accumulator, or it continues. BITS(n) + gives the low n bits in the accumulator. When done, DROPBITS(n) drops + the low n bits off the accumulator. INITBITS() clears the accumulator + and sets the number of available bits to zero. BYTEBITS() discards just + enough bits to put the accumulator on a byte boundary. After BYTEBITS() + and a NEEDBITS(8), then BITS(8) would return the next byte in the stream. + + NEEDBITS(n) uses PULLBYTE() to get an available byte of input, or to return + if there is no input available. The decoding of variable length codes uses + PULLBYTE() directly in order to pull just enough bytes to decode the next + code, and no more. + + Some states loop until they get enough input, making sure that enough + state information is maintained to continue the loop where it left off + if NEEDBITS() returns in the loop. For example, want, need, and keep + would all have to actually be part of the saved state in case NEEDBITS() + returns: + + case STATEw: + while (want < need) { + NEEDBITS(n); + keep[want++] = BITS(n); + DROPBITS(n); + } + state = STATEx; + case STATEx: + + As shown above, if the next state is also the next case, then the break + is omitted. + + A state may also return if there is not enough output space available to + complete that state. Those states are copying stored data, writing a + literal byte, and copying a matching string. + + When returning, a "goto inf_leave" is used to update the total counters, + update the check value, and determine whether any progress has been made + during that inflate() call in order to return the proper return code. + Progress is defined as a change in either strm->avail_in or strm->avail_out. + When there is a window, goto inf_leave will update the window with the last + output written. If a goto inf_leave occurs in the middle of decompression + and there is no window currently, goto inf_leave will create one and copy + output to the window for the next call of inflate(). + + In this implementation, the flush parameter of inflate() only affects the + return code (per zlib.h). inflate() always writes as much as possible to + strm->next_out, given the space available and the provided input--the effect + documented in zlib.h of Z_SYNC_FLUSH. Furthermore, inflate() always defers + the allocation of and copying into a sliding window until necessary, which + provides the effect documented in zlib.h for Z_FINISH when the entire input + stream available. So the only thing the flush parameter actually does is: + when flush is set to Z_FINISH, inflate() cannot return Z_OK. Instead it + will return Z_BUF_ERROR if it has not reached the end of the stream. + */ + +int ZEXPORT inflate(strm, flush) +z_streamp strm; +int flush; +{ + struct inflate_state FAR *state; + unsigned char FAR *next; /* next input */ + unsigned char FAR *put; /* next output */ + unsigned have, left; /* available input and output */ + unsigned long hold; /* bit buffer */ + unsigned bits; /* bits in bit buffer */ + unsigned in, out; /* save starting available input and output */ + unsigned copy; /* number of stored or match bytes to copy */ + unsigned char FAR *from; /* where to copy match bytes from */ + code this; /* current decoding table entry */ + code last; /* parent table entry */ + unsigned len; /* length to copy for repeats, bits to drop */ + int ret; /* return code */ +#ifdef GUNZIP + unsigned char hbuf[4]; /* buffer for gzip header crc calculation */ +#endif + static const unsigned short order[19] = /* permutation of code lengths */ + {16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15}; + + if (strm == Z_NULL || strm->state == Z_NULL || strm->next_out == Z_NULL || + (strm->next_in == Z_NULL && strm->avail_in != 0)) + return Z_STREAM_ERROR; + + state = (struct inflate_state FAR *)strm->state; + if (state->mode == TYPE) state->mode = TYPEDO; /* skip check */ + LOAD(); + in = have; + out = left; + ret = Z_OK; + for (;;) + switch (state->mode) { + case HEAD: + if (state->wrap == 0) { + state->mode = TYPEDO; + break; + } + NEEDBITS(16); +#ifdef GUNZIP + if ((state->wrap & 2) && hold == 0x8b1f) { /* gzip header */ + state->check = crc32(0L, Z_NULL, 0); + CRC2(state->check, hold); + INITBITS(); + state->mode = FLAGS; + break; + } + state->flags = 0; /* expect zlib header */ + if (!(state->wrap & 1) || /* check if zlib header allowed */ +#else + if ( +#endif + ((BITS(8) << 8) + (hold >> 8)) % 31) { + strm->msg = (char *)"incorrect header check"; + state->mode = BAD; + break; + } + if (BITS(4) != Z_DEFLATED) { + strm->msg = (char *)"unknown compression method"; + state->mode = BAD; + break; + } + DROPBITS(4); + if (BITS(4) + 8 > state->wbits) { + strm->msg = (char *)"invalid window size"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: zlib header ok\n")); + strm->adler = state->check = adler32(0L, Z_NULL, 0); + state->mode = hold & 0x200 ? DICTID : TYPE; + INITBITS(); + break; +#ifdef GUNZIP + case FLAGS: + NEEDBITS(16); + state->flags = (int)(hold); + if ((state->flags & 0xff) != Z_DEFLATED) { + strm->msg = (char *)"unknown compression method"; + state->mode = BAD; + break; + } + if (state->flags & 0xe000) { + strm->msg = (char *)"unknown header flags set"; + state->mode = BAD; + break; + } + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + state->mode = TIME; + case TIME: + NEEDBITS(32); + if (state->flags & 0x0200) CRC4(state->check, hold); + INITBITS(); + state->mode = OS; + case OS: + NEEDBITS(16); + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + state->mode = EXLEN; + case EXLEN: + if (state->flags & 0x0400) { + NEEDBITS(16); + state->length = (unsigned)(hold); + if (state->flags & 0x0200) CRC2(state->check, hold); + INITBITS(); + } + state->mode = EXTRA; + case EXTRA: + if (state->flags & 0x0400) { + copy = state->length; + if (copy > have) copy = have; + if (copy) { + if (state->flags & 0x0200) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + state->length -= copy; + } + if (state->length) goto inf_leave; + } + state->mode = NAME; + case NAME: + if (state->flags & 0x0800) { + if (have == 0) goto inf_leave; + copy = 0; + do { + len = (unsigned)(next[copy++]); + } while (len && copy < have); + if (state->flags & 0x02000) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + if (len) goto inf_leave; + } + state->mode = COMMENT; + case COMMENT: + if (state->flags & 0x1000) { + if (have == 0) goto inf_leave; + copy = 0; + do { + len = (unsigned)(next[copy++]); + } while (len && copy < have); + if (state->flags & 0x02000) + state->check = crc32(state->check, next, copy); + have -= copy; + next += copy; + if (len) goto inf_leave; + } + state->mode = HCRC; + case HCRC: + if (state->flags & 0x0200) { + NEEDBITS(16); + if (hold != (state->check & 0xffff)) { + strm->msg = (char *)"header crc mismatch"; + state->mode = BAD; + break; + } + INITBITS(); + } + strm->adler = state->check = crc32(0L, Z_NULL, 0); + state->mode = TYPE; + break; +#endif + case DICTID: + NEEDBITS(32); + strm->adler = state->check = REVERSE(hold); + INITBITS(); + state->mode = DICT; + case DICT: + if (state->havedict == 0) { + RESTORE(); + return Z_NEED_DICT; + } + strm->adler = state->check = adler32(0L, Z_NULL, 0); + state->mode = TYPE; + case TYPE: + if (flush == Z_BLOCK) goto inf_leave; + case TYPEDO: + if (state->last) { + BYTEBITS(); + state->mode = CHECK; + break; + } + NEEDBITS(3); + state->last = BITS(1); + DROPBITS(1); + switch (BITS(2)) { + case 0: /* stored block */ + Tracev((stderr, "inflate: stored block%s\n", + state->last ? " (last)" : "")); + state->mode = STORED; + break; + case 1: /* fixed block */ + fixedtables(state); + Tracev((stderr, "inflate: fixed codes block%s\n", + state->last ? " (last)" : "")); + state->mode = LEN; /* decode codes */ + break; + case 2: /* dynamic block */ + Tracev((stderr, "inflate: dynamic codes block%s\n", + state->last ? " (last)" : "")); + state->mode = TABLE; + break; + case 3: + strm->msg = (char *)"invalid block type"; + state->mode = BAD; + } + DROPBITS(2); + break; + case STORED: + BYTEBITS(); /* go to byte boundary */ + NEEDBITS(32); + if ((hold & 0xffff) != ((hold >> 16) ^ 0xffff)) { + strm->msg = (char *)"invalid stored block lengths"; + state->mode = BAD; + break; + } + state->length = (unsigned)hold & 0xffff; + Tracev((stderr, "inflate: stored length %u\n", + state->length)); + INITBITS(); + state->mode = COPY; + case COPY: + copy = state->length; + if (copy) { + if (copy > have) copy = have; + if (copy > left) copy = left; + if (copy == 0) goto inf_leave; + zmemcpy(put, next, copy); + have -= copy; + next += copy; + left -= copy; + put += copy; + state->length -= copy; + break; + } + Tracev((stderr, "inflate: stored end\n")); + state->mode = TYPE; + break; + case TABLE: + NEEDBITS(14); + state->nlen = BITS(5) + 257; + DROPBITS(5); + state->ndist = BITS(5) + 1; + DROPBITS(5); + state->ncode = BITS(4) + 4; + DROPBITS(4); +#ifndef PKZIP_BUG_WORKAROUND + if (state->nlen > 286 || state->ndist > 30) { + strm->msg = (char *)"too many length or distance symbols"; + state->mode = BAD; + break; + } #endif + Tracev((stderr, "inflate: table sizes ok\n")); + state->have = 0; + state->mode = LENLENS; + case LENLENS: + while (state->have < state->ncode) { + NEEDBITS(3); + state->lens[order[state->have++]] = (unsigned short)BITS(3); + DROPBITS(3); + } + while (state->have < 19) + state->lens[order[state->have++]] = 0; + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 7; + ret = inflate_table(CODES, state->lens, 19, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid code lengths set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: code lengths ok\n")); + state->have = 0; + state->mode = CODELENS; + case CODELENS: + while (state->have < state->nlen + state->ndist) { + for (;;) { + this = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.val < 16) { + NEEDBITS(this.bits); + DROPBITS(this.bits); + state->lens[state->have++] = this.val; + } + else { + if (this.val == 16) { + NEEDBITS(this.bits + 2); + DROPBITS(this.bits); + if (state->have == 0) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + len = state->lens[state->have - 1]; + copy = 3 + BITS(2); + DROPBITS(2); + } + else if (this.val == 17) { + NEEDBITS(this.bits + 3); + DROPBITS(this.bits); + len = 0; + copy = 3 + BITS(3); + DROPBITS(3); + } + else { + NEEDBITS(this.bits + 7); + DROPBITS(this.bits); + len = 0; + copy = 11 + BITS(7); + DROPBITS(7); + } + if (state->have + copy > state->nlen + state->ndist) { + strm->msg = (char *)"invalid bit length repeat"; + state->mode = BAD; + break; + } + while (copy--) + state->lens[state->have++] = (unsigned short)len; + } + } + + /* build code tables */ + state->next = state->codes; + state->lencode = (code const FAR *)(state->next); + state->lenbits = 9; + ret = inflate_table(LENS, state->lens, state->nlen, &(state->next), + &(state->lenbits), state->work); + if (ret) { + strm->msg = (char *)"invalid literal/lengths set"; + state->mode = BAD; + break; + } + state->distcode = (code const FAR *)(state->next); + state->distbits = 6; + ret = inflate_table(DISTS, state->lens + state->nlen, state->ndist, + &(state->next), &(state->distbits), state->work); + if (ret) { + strm->msg = (char *)"invalid distances set"; + state->mode = BAD; + break; + } + Tracev((stderr, "inflate: codes ok\n")); + state->mode = LEN; + case LEN: + if (have >= 6 && left >= 258) { + RESTORE(); + inflate_fast(strm, out); + LOAD(); + break; + } + for (;;) { + this = state->lencode[BITS(state->lenbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if (this.op && (this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = state->lencode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + state->length = (unsigned)this.val; + if ((int)(this.op) == 0) { + Tracevv((stderr, this.val >= 0x20 && this.val < 0x7f ? + "inflate: literal '%c'\n" : + "inflate: literal 0x%02x\n", this.val)); + state->mode = LIT; + break; + } + if (this.op & 32) { + Tracevv((stderr, "inflate: end of block\n")); + state->mode = TYPE; + break; + } + if (this.op & 64) { + strm->msg = (char *)"invalid literal/length code"; + state->mode = BAD; + break; + } + state->extra = (unsigned)(this.op) & 15; + state->mode = LENEXT; + case LENEXT: + if (state->extra) { + NEEDBITS(state->extra); + state->length += BITS(state->extra); + DROPBITS(state->extra); + } + Tracevv((stderr, "inflate: length %u\n", state->length)); + state->mode = DIST; + case DIST: + for (;;) { + this = state->distcode[BITS(state->distbits)]; + if ((unsigned)(this.bits) <= bits) break; + PULLBYTE(); + } + if ((this.op & 0xf0) == 0) { + last = this; + for (;;) { + this = state->distcode[last.val + + (BITS(last.bits + last.op) >> last.bits)]; + if ((unsigned)(last.bits + this.bits) <= bits) break; + PULLBYTE(); + } + DROPBITS(last.bits); + } + DROPBITS(this.bits); + if (this.op & 64) { + strm->msg = (char *)"invalid distance code"; + state->mode = BAD; + break; + } + state->offset = (unsigned)this.val; + state->extra = (unsigned)(this.op) & 15; + state->mode = DISTEXT; + case DISTEXT: + if (state->extra) { + NEEDBITS(state->extra); + state->offset += BITS(state->extra); + DROPBITS(state->extra); + } + if (state->offset > state->whave + out - left) { + strm->msg = (char *)"invalid distance too far back"; + state->mode = BAD; + break; + } + Tracevv((stderr, "inflate: distance %u\n", state->offset)); + state->mode = MATCH; + case MATCH: + if (left == 0) goto inf_leave; + copy = out - left; + if (state->offset > copy) { /* copy from window */ + copy = state->offset - copy; + if (copy > state->write) { + copy -= state->write; + from = state->window + (state->wsize - copy); + } + else + from = state->window + (state->write - copy); + if (copy > state->length) copy = state->length; + } + else { /* copy from output */ + from = put - state->offset; + copy = state->length; + } + if (copy > left) copy = left; + left -= copy; + state->length -= copy; + do { + *put++ = *from++; + } while (--copy); + if (state->length == 0) state->mode = LEN; + break; + case LIT: + if (left == 0) goto inf_leave; + *put++ = (unsigned char)(state->length); + left--; + state->mode = LEN; + break; + case CHECK: + if (state->wrap) { + NEEDBITS(32); + out -= left; + strm->total_out += out; + state->total += out; + if (out) + strm->adler = state->check = + UPDATE(state->check, put - out, out); + out = left; + if (( +#ifdef GUNZIP + state->flags ? hold : +#endif + REVERSE(hold)) != state->check) { + strm->msg = (char *)"incorrect data check"; + state->mode = BAD; + break; + } + INITBITS(); + Tracev((stderr, "inflate: check matches trailer\n")); + } +#ifdef GUNZIP + state->mode = LENGTH; + case LENGTH: + if (state->wrap && state->flags) { + NEEDBITS(32); + if (hold != (state->total & 0xffffffffUL)) { + strm->msg = (char *)"incorrect length check"; + state->mode = BAD; + break; + } + INITBITS(); + Tracev((stderr, "inflate: length matches trailer\n")); + } +#endif + state->mode = DONE; + case DONE: + ret = Z_STREAM_END; + goto inf_leave; + case BAD: + ret = Z_DATA_ERROR; + goto inf_leave; + case MEM: + return Z_MEM_ERROR; + case SYNC: + default: + return Z_STREAM_ERROR; + } + + /* + Return from inflate(), updating the total counts and the check value. + If there was no progress during the inflate() call, return a buffer + error. Call updatewindow() to create and/or update the window state. + Note: a memory error from inflate() is non-recoverable. + */ + inf_leave: + RESTORE(); + if (state->wsize || (state->mode < CHECK && out != strm->avail_out)) + if (updatewindow(strm, out)) { + state->mode = MEM; + return Z_MEM_ERROR; + } + in -= strm->avail_in; + out -= strm->avail_out; + strm->total_in += in; + strm->total_out += out; + state->total += out; + if (state->wrap && out) + strm->adler = state->check = + UPDATE(state->check, strm->next_out - out, out); + strm->data_type = state->bits + (state->last ? 64 : 0) + + (state->mode == TYPE ? 128 : 0); + if (((in == 0 && out == 0) || flush == Z_FINISH) && ret == Z_OK) + ret = Z_BUF_ERROR; + return ret; } +int ZEXPORT inflateEnd(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + if (strm == Z_NULL || strm->state == Z_NULL || strm->zfree == (free_func)0) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (state->window != Z_NULL) ZFREE(strm, state->window); + ZFREE(strm, strm->state); + strm->state = Z_NULL; + Tracev((stderr, "inflate: end\n")); + return Z_OK; +} -int ZEXPORT inflateSetDictionary(z, dictionary, dictLength) -z_streamp z; +int ZEXPORT inflateSetDictionary(strm, dictionary, dictLength) +z_streamp strm; const Bytef *dictionary; -uInt dictLength; +uInt dictLength; { - uInt length = dictLength; - - if (z == Z_NULL || z->state == Z_NULL || z->state->mode != DICT0) - return Z_STREAM_ERROR; - - if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR; - z->adler = 1L; - - if (length >= ((uInt)1<<z->state->wbits)) - { - length = (1<<z->state->wbits)-1; - dictionary += dictLength - length; - } - inflate_set_dictionary(z->state->blocks, dictionary, length); - z->state->mode = BLOCKS; - return Z_OK; -} + struct inflate_state FAR *state; + unsigned long id; + /* check state */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (state->mode != DICT) return Z_STREAM_ERROR; -int ZEXPORT inflateSync(z) -z_streamp z; + /* check for correct dictionary id */ + id = adler32(0L, Z_NULL, 0); + id = adler32(id, dictionary, dictLength); + if (id != state->check) return Z_DATA_ERROR; + + /* copy dictionary to window */ + if (updatewindow(strm, strm->avail_out)) { + state->mode = MEM; + return Z_MEM_ERROR; + } + if (dictLength > state->wsize) { + zmemcpy(state->window, dictionary + dictLength - state->wsize, + state->wsize); + state->whave = state->wsize; + } + else { + zmemcpy(state->window + state->wsize - dictLength, dictionary, + dictLength); + state->whave = dictLength; + } + state->havedict = 1; + Tracev((stderr, "inflate: dictionary set\n")); + return Z_OK; +} + +/* + Search buf[0..len-1] for the pattern: 0, 0, 0xff, 0xff. Return when found + or when out of input. When called, *have is the number of pattern bytes + found in order so far, in 0..3. On return *have is updated to the new + state. If on return *have equals four, then the pattern was found and the + return value is how many bytes were read including the last byte of the + pattern. If *have is less than four, then the pattern has not been found + yet and the return value is len. In the latter case, syncsearch() can be + called again with more data and the *have state. *have is initialized to + zero for the first call. + */ +local unsigned syncsearch(have, buf, len) +unsigned FAR *have; +unsigned char FAR *buf; +unsigned len; { - uInt n; /* number of bytes to look at */ - Bytef *p; /* pointer to bytes */ - uInt m; /* number of marker bytes found in a row */ - uLong r, w; /* temporaries to save total_in and total_out */ - - /* set up */ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->mode != BAD) - { - z->state->mode = BAD; - z->state->sub.marker = 0; - } - if ((n = z->avail_in) == 0) - return Z_BUF_ERROR; - p = z->next_in; - m = z->state->sub.marker; - - /* search */ - while (n && m < 4) - { - static const Byte mark[4] = {0, 0, 0xff, 0xff}; - if (*p == mark[m]) - m++; - else if (*p) - m = 0; - else - m = 4 - m; - p++, n--; - } - - /* restore */ - z->total_in += p - z->next_in; - z->next_in = p; - z->avail_in = n; - z->state->sub.marker = m; - - /* return no joy or set up to restart on a new block */ - if (m != 4) - return Z_DATA_ERROR; - r = z->total_in; w = z->total_out; - inflateReset(z); - z->total_in = r; z->total_out = w; - z->state->mode = BLOCKS; - return Z_OK; + unsigned got; + unsigned next; + + got = *have; + next = 0; + while (next < len && got < 4) { + if ((int)(buf[next]) == (got < 2 ? 0 : 0xff)) + got++; + else if (buf[next]) + got = 0; + else + got = 4 - got; + next++; + } + *have = got; + return next; } +int ZEXPORT inflateSync(strm) +z_streamp strm; +{ + unsigned len; /* number of bytes to look at or looked at */ + unsigned long in, out; /* temporary to save total_in and total_out */ + unsigned char buf[4]; /* to restore bit buffer to byte string */ + struct inflate_state FAR *state; -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH - * but removes the length bytes of the resulting empty stored block. When - * decompressing, PPP checks that at the end of input packet, inflate is - * waiting for these length bytes. + /* check parameters */ + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + if (strm->avail_in == 0 && state->bits < 8) return Z_BUF_ERROR; + + /* if first time, start search in bit buffer */ + if (state->mode != SYNC) { + state->mode = SYNC; + state->hold <<= state->bits & 7; + state->bits -= state->bits & 7; + len = 0; + while (state->bits >= 8) { + buf[len++] = (unsigned char)(state->hold); + state->hold >>= 8; + state->bits -= 8; + } + state->have = 0; + syncsearch(&(state->have), buf, len); + } + + /* search available input */ + len = syncsearch(&(state->have), strm->next_in, strm->avail_in); + strm->avail_in -= len; + strm->next_in += len; + strm->total_in += len; + + /* return no joy or set up to restart inflate() on a new block */ + if (state->have != 4) return Z_DATA_ERROR; + in = strm->total_in; out = strm->total_out; + inflateReset(strm); + strm->total_in = in; strm->total_out = out; + state->mode = TYPE; + return Z_OK; +} + +/* + Returns true if inflate is currently at the end of a block generated by + Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP + implementation to provide an additional safety check. PPP uses + Z_SYNC_FLUSH but removes the length bytes of the resulting empty stored + block. When decompressing, PPP checks that at the end of input packet, + inflate is waiting for these length bytes. */ -int ZEXPORT inflateSyncPoint(z) -z_streamp z; +int ZEXPORT inflateSyncPoint(strm) +z_streamp strm; +{ + struct inflate_state FAR *state; + + if (strm == Z_NULL || strm->state == Z_NULL) return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)strm->state; + return state->mode == STORED && state->bits == 0; +} + +int ZEXPORT inflateCopy(dest, source) +z_streamp dest; +z_streamp source; { - if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL) - return Z_STREAM_ERROR; - return inflate_blocks_sync_point(z->state->blocks); + struct inflate_state FAR *state; + struct inflate_state FAR *copy; + unsigned char FAR *window; + + /* check input */ + if (dest == Z_NULL || source == Z_NULL || source->state == Z_NULL || + source->zalloc == (alloc_func)0 || source->zfree == (free_func)0) + return Z_STREAM_ERROR; + state = (struct inflate_state FAR *)source->state; + + /* allocate space */ + copy = (struct inflate_state FAR *) + ZALLOC(source, 1, sizeof(struct inflate_state)); + if (copy == Z_NULL) return Z_MEM_ERROR; + window = Z_NULL; + if (state->window != Z_NULL) { + window = (unsigned char FAR *) + ZALLOC(source, 1U << state->wbits, sizeof(unsigned char)); + if (window == Z_NULL) { + ZFREE(source, copy); + return Z_MEM_ERROR; + } + } + + /* copy state */ + *dest = *source; + *copy = *state; + copy->lencode = copy->codes + (state->lencode - state->codes); + copy->distcode = copy->codes + (state->distcode - state->codes); + copy->next = copy->codes + (state->next - state->codes); + if (window != Z_NULL) + zmemcpy(window, state->window, 1U << state->wbits); + copy->window = window; + dest->state = (voidpf)copy; + return Z_OK; } diff --git a/zlib/inflate.h b/zlib/inflate.h new file mode 100644 index 00000000000..9a12c8fd296 --- /dev/null +++ b/zlib/inflate.h @@ -0,0 +1,117 @@ +/* inflate.h -- internal inflate state definition + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h + */ + +/* WARNING: this file should *not* be used by applications. It is + part of the implementation of the compression library and is + subject to change. Applications should only use zlib.h. + */ + +/* define NO_GZIP when compiling if you want to disable gzip header and + trailer decoding by inflate(). NO_GZIP would be used to avoid linking in + the crc code when it is not needed. For shared libraries, gzip decoding + should be left enabled. */ +#ifndef NO_GZIP +# define GUNZIP +#endif + +/* Possible inflate modes between inflate() calls */ +typedef enum { + HEAD, /* i: waiting for magic header */ +#ifdef GUNZIP + FLAGS, /* i: waiting for method and flags (gzip) */ + TIME, /* i: waiting for modification time (gzip) */ + OS, /* i: waiting for extra flags and operating system (gzip) */ + EXLEN, /* i: waiting for extra length (gzip) */ + EXTRA, /* i: waiting for extra bytes (gzip) */ + NAME, /* i: waiting for end of file name (gzip) */ + COMMENT, /* i: waiting for end of comment (gzip) */ + HCRC, /* i: waiting for header crc (gzip) */ +#endif + DICTID, /* i: waiting for dictionary check value */ + DICT, /* waiting for inflateSetDictionary() call */ + TYPE, /* i: waiting for type bits, including last-flag bit */ + TYPEDO, /* i: same, but skip check to exit inflate on new block */ + STORED, /* i: waiting for stored size (length and complement) */ + COPY, /* i/o: waiting for input or output to copy stored block */ + TABLE, /* i: waiting for dynamic block table lengths */ + LENLENS, /* i: waiting for code length code lengths */ + CODELENS, /* i: waiting for length/lit and distance code lengths */ + LEN, /* i: waiting for length/lit code */ + LENEXT, /* i: waiting for length extra bits */ + DIST, /* i: waiting for distance code */ + DISTEXT, /* i: waiting for distance extra bits */ + MATCH, /* o: waiting for output space to copy string */ + LIT, /* o: waiting for output space to write literal */ + CHECK, /* i: waiting for 32-bit check value */ +#ifdef GUNZIP + LENGTH, /* i: waiting for 32-bit length (gzip) */ +#endif + DONE, /* finished check, done -- remain here until reset */ + BAD, /* got a data error -- remain here until reset */ + MEM, /* got an inflate() memory error -- remain here until reset */ + SYNC /* looking for synchronization bytes to restart inflate() */ +} inflate_mode; + +/* + State transitions between above modes - + + (most modes can go to the BAD or MEM mode -- not shown for clarity) + + Process header: + HEAD -> (gzip) or (zlib) + (gzip) -> FLAGS -> TIME -> OS -> EXLEN -> EXTRA -> NAME + NAME -> COMMENT -> HCRC -> TYPE + (zlib) -> DICTID or TYPE + DICTID -> DICT -> TYPE + Read deflate blocks: + TYPE -> STORED or TABLE or LEN or CHECK + STORED -> COPY -> TYPE + TABLE -> LENLENS -> CODELENS -> LEN + Read deflate codes: + LEN -> LENEXT or LIT or TYPE + LENEXT -> DIST -> DISTEXT -> MATCH -> LEN + LIT -> LEN + Process trailer: + CHECK -> LENGTH -> DONE + */ + +/* state maintained between inflate() calls. Approximately 7K bytes. */ +struct inflate_state { + inflate_mode mode; /* current inflate mode */ + int last; /* true if processing last block */ + int wrap; /* bit 0 true for zlib, bit 1 true for gzip */ + int havedict; /* true if dictionary provided */ + int flags; /* gzip header method and flags (0 if zlib) */ + unsigned long check; /* protected copy of check value */ + unsigned long total; /* protected copy of output count */ + /* sliding window */ + unsigned wbits; /* log base 2 of requested window size */ + unsigned wsize; /* window size or zero if not using window */ + unsigned whave; /* valid bytes in the window */ + unsigned write; /* window write index */ + unsigned char FAR *window; /* allocated sliding window, if needed */ + /* bit accumulator */ + unsigned long hold; /* input bit accumulator */ + unsigned bits; /* number of bits in "in" */ + /* for string and stored block copying */ + unsigned length; /* literal or length of data to copy */ + unsigned offset; /* distance back to copy string from */ + /* for table and code decoding */ + unsigned extra; /* extra bits needed */ + /* fixed and dynamic code tables */ + code const FAR *lencode; /* starting table for length/literal codes */ + code const FAR *distcode; /* starting table for distance codes */ + unsigned lenbits; /* index bits for lencode */ + unsigned distbits; /* index bits for distcode */ + /* dynamic table building */ + unsigned ncode; /* number of code length code lengths */ + unsigned nlen; /* number of length code lengths */ + unsigned ndist; /* number of distance code lengths */ + unsigned have; /* number of code lengths in lens[] */ + code FAR *next; /* next available space in codes[] */ + unsigned short lens[320]; /* temporary storage for code lengths */ + unsigned short work[288]; /* work area for code table building */ + code codes[ENOUGH]; /* space for code tables */ +}; diff --git a/zlib/inftrees.c b/zlib/inftrees.c index 4c32ca30d99..3bb56398e1c 100644 --- a/zlib/inftrees.c +++ b/zlib/inftrees.c @@ -1,454 +1,321 @@ /* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h */ #include "zutil.h" #include "inftrees.h" -#if !defined(BUILDFIXED) && !defined(STDC) -# define BUILDFIXED /* non ANSI compilers may not accept inffixed.h */ -#endif +#define MAXBITS 15 const char inflate_copyright[] = - " inflate 1.1.4 Copyright 1995-2002 Mark Adler "; + " inflate 1.2.1 Copyright 1995-2003 Mark Adler "; /* If you use the zlib library in a product, an acknowledgment is welcome in the documentation of your product. If for some reason you cannot include such an acknowledgment, I would appreciate that you keep this copyright string in the executable of your product. */ -struct internal_state {int dummy;}; /* for buggy compilers */ - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - - -local int huft_build OF(( - uIntf *, /* code lengths in bits */ - uInt, /* number of codes */ - uInt, /* number of "simple" codes */ - const uIntf *, /* list of base values for non-simple codes */ - const uIntf *, /* list of extra bits for non-simple codes */ - inflate_huft * FAR*,/* result: starting table */ - uIntf *, /* maximum lookup bits (returns actual) */ - inflate_huft *, /* space for trees */ - uInt *, /* hufts used in space */ - uIntf * )); /* space for values */ - -/* Tables for deflate from PKZIP's appnote.txt. */ -local const uInt cplens[31] = { /* Copy lengths for literal codes 257..285 */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; - /* see note #13 above about 258 */ -local const uInt cplext[31] = { /* Extra bits for literal codes 257..285 */ - 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, - 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 112, 112}; /* 112==invalid */ -local const uInt cpdist[30] = { /* Copy offsets for distance codes 0..29 */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577}; -local const uInt cpdext[30] = { /* Extra bits for distance codes */ - 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, - 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, - 12, 12, 13, 13}; /* - Huffman code decoding is performed using a multi-level table lookup. - The fastest way to decode is to simply build a lookup table whose - size is determined by the longest code. However, the time it takes - to build this table can also be a factor if the data being decoded - is not very long. The most common codes are necessarily the - shortest codes, so those codes dominate the decoding time, and hence - the speed. The idea is you can have a shorter table that decodes the - shorter, more probable codes, and then point to subsidiary tables for - the longer codes. The time it costs to decode the longer codes is - then traded against the time it takes to make longer tables. - - This results of this trade are in the variables lbits and dbits - below. lbits is the number of bits the first level table for literal/ - length codes can decode in one step, and dbits is the same thing for - the distance codes. Subsequent tables are also less than or equal to - those sizes. These values may be adjusted either when all of the - codes are shorter than that, in which case the longest code length in - bits is used, or when the shortest code is *longer* than the requested - table size, in which case the length of the shortest code in bits is - used. - - There are two different values for the two tables, since they code a - different number of possibilities each. The literal/length table - codes 286 possible values, or in a flat code, a little over eight - bits. The distance table codes 30 possible values, or a little less - than five bits, flat. The optimum values for speed end up being - about one bit more than those, so lbits is 8+1 and dbits is 5+1. - The optimum values may differ though from machine to machine, and - possibly even between compilers. Your mileage may vary. + Build a set of tables to decode the provided canonical Huffman code. + The code lengths are lens[0..codes-1]. The result starts at *table, + whose indices are 0..2^bits-1. work is a writable array of at least + lens shorts, which is used as a work area. type is the type of code + to be generated, CODES, LENS, or DISTS. On return, zero is success, + -1 is an invalid code, and +1 means that ENOUGH isn't enough. table + on return points to the next available entry's address. bits is the + requested root table index bits, and on return it is the actual root + table index bits. It will differ if the request is greater than the + longest code or if it is less than the shortest code. */ - - -/* If BMAX needs to be larger than 16, then h and x[] should be uLong. */ -#define BMAX 15 /* maximum bit length of any code */ - -local int huft_build(b, n, s, d, e, t, m, hp, hn, v) -uIntf *b; /* code lengths in bits (all assumed <= BMAX) */ -uInt n; /* number of codes (assumed <= 288) */ -uInt s; /* number of simple-valued codes (0..s-1) */ -const uIntf *d; /* list of base values for non-simple codes */ -const uIntf *e; /* list of extra bits for non-simple codes */ -inflate_huft * FAR *t; /* result: starting table */ -uIntf *m; /* maximum lookup bits, returns actual */ -inflate_huft *hp; /* space for trees */ -uInt *hn; /* hufts used in space */ -uIntf *v; /* working area: values in order of bit length */ -/* Given a list of code lengths and a maximum table size, make a set of - tables to decode that set of codes. Return Z_OK on success, Z_BUF_ERROR - if the given code set is incomplete (the tables are still built in this - case), or Z_DATA_ERROR if the input is invalid. */ +int inflate_table(type, lens, codes, table, bits, work) +codetype type; +unsigned short FAR *lens; +unsigned codes; +code FAR * FAR *table; +unsigned FAR *bits; +unsigned short FAR *work; { + unsigned len; /* a code's length in bits */ + unsigned sym; /* index of code symbols */ + unsigned min, max; /* minimum and maximum code lengths */ + unsigned root; /* number of index bits for root table */ + unsigned curr; /* number of index bits for current table */ + unsigned drop; /* code bits to drop for sub-table */ + int left; /* number of prefix codes available */ + unsigned used; /* code entries in table used */ + unsigned huff; /* Huffman code */ + unsigned incr; /* for incrementing code, index */ + unsigned fill; /* index for replicating entries */ + unsigned low; /* low bits for current root entry */ + unsigned mask; /* mask for low root bits */ + code this; /* table entry for duplication */ + code FAR *next; /* next available space in table */ + const unsigned short FAR *base; /* base value table to use */ + const unsigned short FAR *extra; /* extra bits table to use */ + int end; /* use base and extra for symbol > end */ + unsigned short count[MAXBITS+1]; /* number of codes of each length */ + unsigned short offs[MAXBITS+1]; /* offsets in table for each length */ + static const unsigned short lbase[31] = { /* Length codes 257..285 base */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0}; + static const unsigned short lext[31] = { /* Length codes 257..285 extra */ + 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, + 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 76, 66}; + static const unsigned short dbase[32] = { /* Distance codes 0..29 base */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577, 0, 0}; + static const unsigned short dext[32] = { /* Distance codes 0..29 extra */ + 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, + 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, + 28, 28, 29, 29, 64, 64}; + + /* + Process a set of code lengths to create a canonical Huffman code. The + code lengths are lens[0..codes-1]. Each length corresponds to the + symbols 0..codes-1. The Huffman code is generated by first sorting the + symbols by length from short to long, and retaining the symbol order + for codes with equal lengths. Then the code starts with all zero bits + for the first code of the shortest length, and the codes are integer + increments for the same length, and zeros are appended as the length + increases. For the deflate format, these bits are stored backwards + from their more natural integer increment ordering, and so when the + decoding tables are built in the large loop below, the integer codes + are incremented backwards. + + This routine assumes, but does not check, that all of the entries in + lens[] are in the range 0..MAXBITS. The caller must assure this. + 1..MAXBITS is interpreted as that code length. zero means that that + symbol does not occur in this code. + + The codes are sorted by computing a count of codes for each length, + creating from that a table of starting indices for each length in the + sorted table, and then entering the symbols in order in the sorted + table. The sorted table is work[], with that space being provided by + the caller. + + The length counts are used for other purposes as well, i.e. finding + the minimum and maximum length codes, determining if there are any + codes at all, checking for a valid set of lengths, and looking ahead + at length counts to determine sub-table sizes when building the + decoding tables. + */ + + /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ + for (len = 0; len <= MAXBITS; len++) + count[len] = 0; + for (sym = 0; sym < codes; sym++) + count[lens[sym]]++; + + /* bound code lengths, force root to be within code lengths */ + root = *bits; + for (max = MAXBITS; max >= 1; max--) + if (count[max] != 0) break; + if (root > max) root = max; + if (max == 0) return -1; /* no codes! */ + for (min = 1; min <= MAXBITS; min++) + if (count[min] != 0) break; + if (root < min) root = min; + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; + left -= count[len]; + if (left < 0) return -1; /* over-subscribed */ + } + if (left > 0 && (type == CODES || (codes - count[0] != 1))) + return -1; /* incomplete set */ + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) + offs[len + 1] = offs[len] + count[len]; + + /* sort symbols by length, by symbol order within each length */ + for (sym = 0; sym < codes; sym++) + if (lens[sym] != 0) work[offs[lens[sym]]++] = (unsigned short)sym; + + /* + Create and fill in decoding tables. In this loop, the table being + filled is at next and has curr index bits. The code being used is huff + with length len. That code is converted to an index by dropping drop + bits off of the bottom. For codes where len is less than drop + curr, + those top drop + curr - len bits are incremented through all values to + fill the table with replicated entries. + + root is the number of index bits for the root table. When len exceeds + root, sub-tables are created pointed to by the root entry with an index + of the low root bits of huff. This is saved in low to check for when a + new sub-table should be started. drop is zero when the root table is + being filled, and drop is root when sub-tables are being filled. + + When a new sub-table is needed, it is necessary to look ahead in the + code lengths to determine what size sub-table is needed. The length + counts are used for this, and so count[] is decremented as codes are + entered in the tables. + + used keeps track of how many table entries have been allocated from the + provided *table space. It is checked when a LENS table is being made + against the space in *table, ENOUGH, minus the maximum space needed by + the worst case distance code, MAXD. This should never happen, but the + sufficiency of ENOUGH has not been proven exhaustively, hence the check. + This assumes that when type == LENS, bits == 9. + + sym increments through all symbols, and the loop terminates when + all codes of length max, i.e. all codes, have been processed. This + routine permits incomplete codes, so another loop after this one fills + in the rest of the decoding tables with invalid code markers. + */ + + /* set up for code type */ + switch (type) { + case CODES: + base = extra = work; /* dummy value--not used */ + end = 19; + break; + case LENS: + base = lbase; + base -= 257; + extra = lext; + extra -= 257; + end = 256; + break; + default: /* DISTS */ + base = dbase; + extra = dext; + end = -1; + } - uInt a; /* counter for codes of length k */ - uInt c[BMAX+1]; /* bit length count table */ - uInt f; /* i repeats in table every f entries */ - int g; /* maximum code length */ - int h; /* table level */ - register uInt i; /* counter, current code */ - register uInt j; /* counter */ - register int k; /* number of bits in current code */ - int l; /* bits per table (returned in m) */ - uInt mask; /* (1 << w) - 1, to avoid cc -O bug on HP */ - register uIntf *p; /* pointer into c[], b[], or v[] */ - inflate_huft *q; /* points to current table */ - struct inflate_huft_s r; /* table entry for structure assignment */ - inflate_huft *u[BMAX]; /* table stack */ - register int w; /* bits before this table == (l * h) */ - uInt x[BMAX+1]; /* bit offsets, then code stack */ - uIntf *xp; /* pointer into x */ - int y; /* number of dummy codes added */ - uInt z; /* number of entries in current table */ - - - /* Generate counts for each bit length */ - p = c; -#define C0 *p++ = 0; -#define C2 C0 C0 C0 C0 -#define C4 C2 C2 C2 C2 - C4 /* clear c[]--assume BMAX+1 is 16 */ - p = b; i = n; - do { - c[*p++]++; /* assume all entries <= BMAX */ - } while (--i); - if (c[0] == n) /* null input--all zero length codes */ - { - *t = (inflate_huft *)Z_NULL; - *m = 0; - return Z_OK; - } - - - /* Find minimum and maximum length, bound *m by those */ - l = *m; - for (j = 1; j <= BMAX; j++) - if (c[j]) - break; - k = j; /* minimum code length */ - if ((uInt)l < j) - l = j; - for (i = BMAX; i; i--) - if (c[i]) - break; - g = i; /* maximum code length */ - if ((uInt)l > i) - l = i; - *m = l; - - - /* Adjust last length count to fill out codes, if needed */ - for (y = 1 << j; j < i; j++, y <<= 1) - if ((y -= c[j]) < 0) - return Z_DATA_ERROR; - if ((y -= c[i]) < 0) - return Z_DATA_ERROR; - c[i] += y; - - - /* Generate starting offsets into the value table for each length */ - x[1] = j = 0; - p = c + 1; xp = x + 2; - while (--i) { /* note that i == g from above */ - *xp++ = (j += *p++); - } - - - /* Make a table of values in order of bit lengths */ - p = b; i = 0; - do { - if ((j = *p++) != 0) - v[x[j]++] = i; - } while (++i < n); - n = x[g]; /* set n to length of v */ - - - /* Generate the Huffman codes and for each, make the table entries */ - x[0] = i = 0; /* first Huffman code is zero */ - p = v; /* grab values in bit order */ - h = -1; /* no tables yet--level -1 */ - w = -l; /* bits decoded == (l * h) */ - u[0] = (inflate_huft *)Z_NULL; /* just to keep compilers happy */ - q = (inflate_huft *)Z_NULL; /* ditto */ - z = 0; /* ditto */ - - /* go through the bit lengths (k already is bits in shortest code) */ - for (; k <= g; k++) - { - a = c[k]; - while (a--) - { - /* here i is the Huffman code of length k bits for value *p */ - /* make tables up to required level */ - while (k > w + l) - { - h++; - w += l; /* previous table always l bits */ - - /* compute minimum size table less than or equal to l bits */ - z = g - w; - z = z > (uInt)l ? l : z; /* table size upper limit */ - if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */ - { /* too few codes for k-w bit table */ - f -= a + 1; /* deduct codes from patterns left */ - xp = c + k; - if (j < z) - while (++j < z) /* try smaller tables up to z bits */ - { - if ((f <<= 1) <= *++xp) - break; /* enough codes to use up j bits */ - f -= *xp; /* else deduct codes from patterns */ - } + /* initialize state for loop */ + huff = 0; /* starting code */ + sym = 0; /* starting code symbol */ + len = min; /* starting code length */ + next = *table; /* current table to fill in */ + curr = root; /* current table index bits */ + drop = 0; /* current bits to drop from code for index */ + low = (unsigned)(-1); /* trigger new sub-table when len > root */ + used = 1U << root; /* use root table entries */ + mask = used - 1; /* mask for comparing low */ + + /* check available table space */ + if (type == LENS && used >= ENOUGH - MAXD) + return 1; + + /* process all codes and make table entries */ + for (;;) { + /* create table entry */ + this.bits = (unsigned char)(len - drop); + if ((int)(work[sym]) < end) { + this.op = (unsigned char)0; + this.val = work[sym]; } - z = 1 << j; /* table entries for j-bit table */ - - /* allocate new table */ - if (*hn + z > MANY) /* (note: doesn't matter for fixed) */ - return Z_DATA_ERROR; /* overflow of MANY */ - u[h] = q = hp + *hn; - *hn += z; - - /* connect to last table, if there is one */ - if (h) - { - x[h] = i; /* save pattern for backing up */ - r.bits = (Byte)l; /* bits to dump before this table */ - r.exop = (Byte)j; /* bits in this table */ - j = i >> (w - l); - r.base = (uInt)(q - u[h-1] - j); /* offset to this table */ - u[h-1][j] = r; /* connect to last table */ + else if ((int)(work[sym]) > end) { + this.op = (unsigned char)(extra[work[sym]]); + this.val = base[work[sym]]; + } + else { + this.op = (unsigned char)(32 + 64); /* end of block */ + this.val = 0; } - else - *t = q; /* first table is returned result */ - } - - /* set up table entry in r */ - r.bits = (Byte)(k - w); - if (p >= v + n) - r.exop = 128 + 64; /* out of values--invalid code */ - else if (*p < s) - { - r.exop = (Byte)(*p < 256 ? 0 : 32 + 64); /* 256 is end-of-block */ - r.base = *p++; /* simple code is just the value */ - } - else - { - r.exop = (Byte)(e[*p - s] + 16 + 64);/* non-simple--look up in lists */ - r.base = d[*p++ - s]; - } - - /* fill code-like entries with r */ - f = 1 << (k - w); - for (j = i >> w; j < z; j += f) - q[j] = r; - - /* backwards increment the k-bit code i */ - for (j = 1 << (k - 1); i & j; j >>= 1) - i ^= j; - i ^= j; - - /* backup over finished tables */ - mask = (1 << w) - 1; /* needed on HP, cc -O bug */ - while ((i & mask) != x[h]) - { - h--; /* don't need to update q */ - w -= l; - mask = (1 << w) - 1; - } - } - } - - /* Return Z_BUF_ERROR if we were given an incomplete table */ - return y != 0 && g != 1 ? Z_BUF_ERROR : Z_OK; -} + /* replicate for those indices with low len bits equal to huff */ + incr = 1U << (len - drop); + fill = 1U << curr; + do { + fill -= incr; + next[(huff >> drop) + fill] = this; + } while (fill != 0); + + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; + /* go to next symbol, update count, len */ + sym++; + if (--(count[len]) == 0) { + if (len == max) break; + len = lens[work[sym]]; + } -int inflate_trees_bits(c, bb, tb, hp, z) -uIntf *c; /* 19 code lengths */ -uIntf *bb; /* bits tree desired/actual depth */ -inflate_huft * FAR *tb; /* bits tree result */ -inflate_huft *hp; /* space for trees */ -z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uIntf *v; /* work area for huft_build */ - - if ((v = (uIntf*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - r = huft_build(c, 19, 19, (uIntf*)Z_NULL, (uIntf*)Z_NULL, - tb, bb, hp, &hn, v); - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed dynamic bit lengths tree"; - else if (r == Z_BUF_ERROR || *bb == 0) - { - z->msg = (char*)"incomplete dynamic bit lengths tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; -} + /* create new sub-table if needed */ + if (len > root && (huff & mask) != low) { + /* if first time, transition to sub-tables */ + if (drop == 0) + drop = root; + + /* increment past last table */ + next += 1U << curr; + + /* determine length of next table */ + curr = len - drop; + left = (int)(1 << curr); + while (curr + drop < max) { + left -= count[curr + drop]; + if (left <= 0) break; + curr++; + left <<= 1; + } + /* check for enough space */ + used += 1U << curr; + if (type == LENS && used >= ENOUGH - MAXD) + return 1; -int inflate_trees_dynamic(nl, nd, c, bl, bd, tl, td, hp, z) -uInt nl; /* number of literal/length codes */ -uInt nd; /* number of distance codes */ -uIntf *c; /* that many (total) code lengths */ -uIntf *bl; /* literal desired/actual bit depth */ -uIntf *bd; /* distance desired/actual bit depth */ -inflate_huft * FAR *tl; /* literal/length tree result */ -inflate_huft * FAR *td; /* distance tree result */ -inflate_huft *hp; /* space for trees */ -z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uIntf *v; /* work area for huft_build */ - - /* allocate work area */ - if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - - /* build literal/length tree */ - r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); - if (r != Z_OK || *bl == 0) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed literal/length tree"; - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"incomplete literal/length tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; - } - - /* build distance tree */ - r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); - if (r != Z_OK || (*bd == 0 && nl > 257)) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed distance tree"; - else if (r == Z_BUF_ERROR) { -#ifdef PKZIP_BUG_WORKAROUND - r = Z_OK; - } -#else - z->msg = (char*)"incomplete distance tree"; - r = Z_DATA_ERROR; - } - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"empty distance tree with lengths"; - r = Z_DATA_ERROR; + /* point entry in root table to sub-table */ + low = huff & mask; + (*table)[low].op = (unsigned char)curr; + (*table)[low].bits = (unsigned char)root; + (*table)[low].val = (unsigned short)(next - *table); + } } - ZFREE(z, v); - return r; -#endif - } - - /* done */ - ZFREE(z, v); - return Z_OK; -} + /* + Fill in rest of table for incomplete codes. This loop is similar to the + loop above in incrementing huff for table indices. It is assumed that + len is equal to curr + drop, so there is no loop needed to increment + through high index bits. When the current sub-table is filled, the loop + drops back to the root table to fill in any remaining entries there. + */ + this.op = (unsigned char)64; /* invalid code marker */ + this.bits = (unsigned char)(len - drop); + this.val = (unsigned short)0; + while (huff != 0) { + /* when done with sub-table, drop back to root table */ + if (drop != 0 && (huff & mask) != low) { + drop = 0; + len = root; + next = *table; + curr = root; + this.bits = (unsigned char)len; + } + + /* put invalid code marker in table */ + next[huff >> drop] = this; -/* build fixed tables only once--keep them here */ -#ifdef BUILDFIXED -local int fixed_built = 0; -#define FIXEDH 544 /* number of hufts used by fixed tables */ -local inflate_huft fixed_mem[FIXEDH]; -local uInt fixed_bl; -local uInt fixed_bd; -local inflate_huft *fixed_tl; -local inflate_huft *fixed_td; -#else -#include "inffixed.h" -#endif - - -int inflate_trees_fixed(bl, bd, tl, td, z) -uIntf *bl; /* literal desired/actual bit depth */ -uIntf *bd; /* distance desired/actual bit depth */ -inflate_huft * FAR *tl; /* literal/length tree result */ -inflate_huft * FAR *td; /* distance tree result */ -z_streamp z; /* for memory allocation */ -{ -#ifdef BUILDFIXED - /* build fixed tables if not already */ - if (!fixed_built) - { - int k; /* temporary variable */ - uInt f = 0; /* number of hufts used in fixed_mem */ - uIntf *c; /* length list for huft_build */ - uIntf *v; /* work area for huft_build */ - - /* allocate memory */ - if ((c = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - if ((v = (uIntf*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - { - ZFREE(z, c); - return Z_MEM_ERROR; + /* backwards increment the len-bit code huff */ + incr = 1U << (len - 1); + while (huff & incr) + incr >>= 1; + if (incr != 0) { + huff &= incr - 1; + huff += incr; + } + else + huff = 0; } - /* literal table */ - for (k = 0; k < 144; k++) - c[k] = 8; - for (; k < 256; k++) - c[k] = 9; - for (; k < 280; k++) - c[k] = 7; - for (; k < 288; k++) - c[k] = 8; - fixed_bl = 9; - huft_build(c, 288, 257, cplens, cplext, &fixed_tl, &fixed_bl, - fixed_mem, &f, v); - - /* distance table */ - for (k = 0; k < 30; k++) - c[k] = 5; - fixed_bd = 5; - huft_build(c, 30, 0, cpdist, cpdext, &fixed_td, &fixed_bd, - fixed_mem, &f, v); - - /* done */ - ZFREE(z, v); - ZFREE(z, c); - fixed_built = 1; - } -#endif - *bl = fixed_bl; - *bd = fixed_bd; - *tl = fixed_tl; - *td = fixed_td; - return Z_OK; + /* set return parameters */ + *table += used; + *bits = root; + return 0; } diff --git a/zlib/inftrees.h b/zlib/inftrees.h index 04b73b7296a..82d365a7e90 100644 --- a/zlib/inftrees.h +++ b/zlib/inftrees.h @@ -1,6 +1,6 @@ /* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Mark Adler + * For conditions of distribution and use, see copyright notice in zlib.h */ /* WARNING: this file should *not* be used by applications. It is @@ -8,51 +8,48 @@ subject to change. Applications should only use zlib.h. */ -/* Huffman code lookup table entry--this entry is four bytes for machines - that have 16-bit pointers (e.g. PC's in the small or medium model). */ - -typedef struct inflate_huft_s FAR inflate_huft; - -struct inflate_huft_s { - union { - struct { - Byte Exop; /* number of extra bits or operation */ - Byte Bits; /* number of bits in this code or subcode */ - } what; - uInt pad; /* pad structure to a power of 2 (4 bytes for */ - } word; /* 16-bit, 8 bytes for 32-bit int's) */ - uInt base; /* literal, length base, distance base, - or table offset */ -}; +/* Structure for decoding tables. Each entry provides either the + information needed to do the operation requested by the code that + indexed that table entry, or it provides a pointer to another + table that indexes more bits of the code. op indicates whether + the entry is a pointer to another table, a literal, a length or + distance, an end-of-block, or an invalid code. For a table + pointer, the low four bits of op is the number of index bits of + that table. For a length or distance, the low four bits of op + is the number of extra bits to get after the code. bits is + the number of bits in this code or part of the code to drop off + of the bit buffer. val is the actual byte to output in the case + of a literal, the base length or distance, or the offset from + the current table to the next table. Each entry is four bytes. */ +typedef struct { + unsigned char op; /* operation, extra bits, table bits */ + unsigned char bits; /* bits in this part of the code */ + unsigned short val; /* offset in table or code value */ +} code; + +/* op values as set by inflate_table(): + 00000000 - literal + 0000tttt - table link, tttt != 0 is the number of table index bits + 0001eeee - length or distance, eeee is the number of extra bits + 01100000 - end of block + 01000000 - invalid code + */ /* Maximum size of dynamic tree. The maximum found in a long but non- - exhaustive search was 1004 huft structures (850 for length/literals + exhaustive search was 1004 code structures (850 for length/literals and 154 for distances, the latter actually the result of an - exhaustive search). The actual maximum is not known, but the - value below is more than safe. */ -#define MANY 1440 - -extern int inflate_trees_bits OF(( - uIntf *, /* 19 code lengths */ - uIntf *, /* bits tree desired/actual depth */ - inflate_huft * FAR *, /* bits tree result */ - inflate_huft *, /* space for trees */ - z_streamp)); /* for messages */ - -extern int inflate_trees_dynamic OF(( - uInt, /* number of literal/length codes */ - uInt, /* number of distance codes */ - uIntf *, /* that many (total) code lengths */ - uIntf *, /* literal desired/actual bit depth */ - uIntf *, /* distance desired/actual bit depth */ - inflate_huft * FAR *, /* literal/length tree result */ - inflate_huft * FAR *, /* distance tree result */ - inflate_huft *, /* space for trees */ - z_streamp)); /* for messages */ - -extern int inflate_trees_fixed OF(( - uIntf *, /* literal desired/actual bit depth */ - uIntf *, /* distance desired/actual bit depth */ - inflate_huft * FAR *, /* literal/length tree result */ - inflate_huft * FAR *, /* distance tree result */ - z_streamp)); /* for memory allocation */ + exhaustive search). The true maximum is not known, but the value + below is more than safe. */ +#define ENOUGH 1440 +#define MAXD 154 + +/* Type of code to build for inftable() */ +typedef enum { + CODES, + LENS, + DISTS +} codetype; + +extern int inflate_table OF((codetype type, unsigned short FAR *lens, + unsigned codes, code FAR * FAR *table, + unsigned FAR *bits, unsigned short FAR *work)); diff --git a/zlib/infutil.c b/zlib/infutil.c deleted file mode 100644 index 9a076221f2a..00000000000 --- a/zlib/infutil.c +++ /dev/null @@ -1,87 +0,0 @@ -/* inflate_util.c -- data and routines common to blocks and codes - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#include "zutil.h" -#include "infblock.h" -#include "inftrees.h" -#include "infcodes.h" -#include "infutil.h" - -struct inflate_codes_state {int dummy;}; /* for buggy compilers */ - -/* And'ing with mask[n] masks the lower n bits */ -uInt inflate_mask[17] = { - 0x0000, - 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, - 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff -}; - - -/* copy as much as possible from the sliding window to the output area */ -int inflate_flush(s, z, r) -inflate_blocks_statef *s; -z_streamp z; -int r; -{ - uInt n; - Bytef *p; - Bytef *q; - - /* local copies of source and destination pointers */ - p = z->next_out; - q = s->read; - - /* compute number of bytes to copy as far as end of window */ - n = (uInt)((q <= s->write ? s->write : s->end) - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy as far as end of window */ - zmemcpy(p, q, n); - p += n; - q += n; - - /* see if more to copy at beginning of window */ - if (q == s->end) - { - /* wrap pointers */ - q = s->window; - if (s->write == s->end) - s->write = s->window; - - /* compute bytes to copy */ - n = (uInt)(s->write - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy */ - zmemcpy(p, q, n); - p += n; - q += n; - } - - /* update pointers */ - z->next_out = p; - s->read = q; - - /* done */ - return r; -} diff --git a/zlib/infutil.h b/zlib/infutil.h deleted file mode 100644 index 4401df82fc8..00000000000 --- a/zlib/infutil.h +++ /dev/null @@ -1,98 +0,0 @@ -/* infutil.h -- types and macros common to blocks and codes - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -#ifndef _INFUTIL_H -#define _INFUTIL_H - -typedef enum { - TYPE, /* get type bits (3, including end bit) */ - LENS, /* get lengths for stored */ - STORED, /* processing stored block */ - TABLE, /* get table lengths */ - BTREE, /* get bit lengths tree for a dynamic block */ - DTREE, /* get length, distance trees for a dynamic block */ - CODES, /* processing fixed or dynamic block */ - DRY, /* output remaining window bytes */ - DONE, /* finished last block, done */ - BAD} /* got a data error--stuck here */ -inflate_block_mode; - -/* inflate blocks semi-private state */ -struct inflate_blocks_state { - - /* mode */ - inflate_block_mode mode; /* current inflate_block mode */ - - /* mode dependent information */ - union { - uInt left; /* if STORED, bytes left to copy */ - struct { - uInt table; /* table lengths (14 bits) */ - uInt index; /* index into blens (or border) */ - uIntf *blens; /* bit lengths of codes */ - uInt bb; /* bit length tree depth */ - inflate_huft *tb; /* bit length decoding tree */ - } trees; /* if DTREE, decoding info for trees */ - struct { - inflate_codes_statef - *codes; - } decode; /* if CODES, current state */ - } sub; /* submode */ - uInt last; /* true if this block is the last block */ - - /* mode independent information */ - uInt bitk; /* bits in bit buffer */ - uLong bitb; /* bit buffer */ - inflate_huft *hufts; /* single malloc for tree space */ - Bytef *window; /* sliding window */ - Bytef *end; /* one byte after sliding window */ - Bytef *read; /* window read pointer */ - Bytef *write; /* window write pointer */ - check_func checkfn; /* check function */ - uLong check; /* check on output */ - -}; - - -/* defines for inflate input/output */ -/* update pointers and return */ -#define UPDBITS {s->bitb=b;s->bitk=k;} -#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;} -#define UPDOUT {s->write=q;} -#define UPDATE {UPDBITS UPDIN UPDOUT} -#define LEAVE {UPDATE return inflate_flush(s,z,r);} -/* get bytes and bits */ -#define LOADIN {p=z->next_in;n=z->avail_in;b=s->bitb;k=s->bitk;} -#define NEEDBYTE {if(n)r=Z_OK;else LEAVE} -#define NEXTBYTE (n--,*p++) -#define NEEDBITS(j) {while(k<(j)){NEEDBYTE;b|=((uLong)NEXTBYTE)<<k;k+=8;}} -#define DUMPBITS(j) {b>>=(j);k-=(j);} -/* output bytes */ -#define WAVAIL (uInt)(q<s->read?s->read-q-1:s->end-q) -#define LOADOUT {q=s->write;m=(uInt)WAVAIL;} -#define WRAP {if(q==s->end&&s->read!=s->window){q=s->window;m=(uInt)WAVAIL;}} -#define FLUSH {UPDOUT r=inflate_flush(s,z,r); LOADOUT} -#define NEEDOUT {if(m==0){WRAP if(m==0){FLUSH WRAP if(m==0) LEAVE}}r=Z_OK;} -#define OUTBYTE(a) {*q++=(Byte)(a);m--;} -/* load local pointers */ -#define LOAD {LOADIN LOADOUT} - -/* masks for lower bits (size given to avoid silly warnings with Visual C++) */ -extern uInt inflate_mask[17]; - -/* copy as much as possible from the sliding window to the output area */ -extern int inflate_flush OF(( - inflate_blocks_statef *, - z_streamp , - int)); - -struct internal_state {int dummy;}; /* for buggy compilers */ - -#endif diff --git a/zlib/maketree.c b/zlib/maketree.c deleted file mode 100644 index a16d4b14608..00000000000 --- a/zlib/maketree.c +++ /dev/null @@ -1,85 +0,0 @@ -/* maketree.c -- make inffixed.h table for decoding fixed codes - * Copyright (C) 1995-2002 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* WARNING: this file should *not* be used by applications. It is - part of the implementation of the compression library and is - subject to change. Applications should only use zlib.h. - */ - -/* This program is included in the distribution for completeness. - You do not need to compile or run this program since inffixed.h - is already included in the distribution. To use this program - you need to compile zlib with BUILDFIXED defined and then compile - and link this program with the zlib library. Then the output of - this program can be piped to inffixed.h. */ - -#include <stdio.h> -#include <stdlib.h> -#include "zutil.h" -#include "inftrees.h" - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -/* generate initialization table for an inflate_huft structure array */ -void maketree(uInt b, inflate_huft *t) -{ - int i, e; - - i = 0; - while (1) - { - e = t[i].exop; - if (e && (e & (16+64)) == 0) /* table pointer */ - { - fprintf(stderr, "maketree: cannot initialize sub-tables!\n"); - exit(1); - } - if (i % 4 == 0) - printf("\n "); - printf(" {{{%u,%u}},%u}", t[i].exop, t[i].bits, t[i].base); - if (++i == (1<<b)) - break; - putchar(','); - } - puts(""); -} - -/* create the fixed tables in C initialization syntax */ -void main(void) -{ - int r; - uInt bl, bd; - inflate_huft *tl, *td; - z_stream z; - - z.zalloc = zcalloc; - z.opaque = (voidpf)0; - z.zfree = zcfree; - r = inflate_trees_fixed(&bl, &bd, &tl, &td, &z); - if (r) - { - fprintf(stderr, "inflate_trees_fixed error %d\n", r); - return; - } - puts("/* inffixed.h -- table for decoding fixed codes"); - puts(" * Generated automatically by the maketree.c program"); - puts(" */"); - puts(""); - puts("/* WARNING: this file should *not* be used by applications. It is"); - puts(" part of the implementation of the compression library and is"); - puts(" subject to change. Applications should only use zlib.h."); - puts(" */"); - puts(""); - printf("local uInt fixed_bl = %d;\n", bl); - printf("local uInt fixed_bd = %d;\n", bd); - printf("local inflate_huft fixed_tl[] = {"); - maketree(bl, tl); - puts(" };"); - printf("local inflate_huft fixed_td[] = {"); - maketree(bd, td); - puts(" };"); -} diff --git a/zlib/minigzip.c b/zlib/minigzip.c deleted file mode 100644 index 97b7c2d93b2..00000000000 --- a/zlib/minigzip.c +++ /dev/null @@ -1,320 +0,0 @@ -/* minigzip.c -- simulate gzip using the zlib compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -/* - * minigzip is a minimal implementation of the gzip utility. This is - * only an example of using zlib and isn't meant to replace the - * full-featured gzip. No attempt is made to deal with file systems - * limiting names to 14 or 8+3 characters, etc... Error checking is - * very limited. So use minigzip only for testing; use gzip for the - * real thing. On MSDOS, use only on file names without extension - * or in pipe mode. - */ - -/* @(#) $Id$ */ - -#include <stdio.h> -#include "zlib.h" - -#ifdef STDC -# include <string.h> -# include <stdlib.h> -#else - extern void exit OF((int)); -#endif - -#ifdef USE_MMAP -# include <sys/types.h> -# include <sys/mman.h> -# include <sys/stat.h> -#endif - -#if defined(MSDOS) || defined(OS2) || defined(WIN32) -# include <fcntl.h> -# include <io.h> -# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) -#else -# define SET_BINARY_MODE(file) -#endif - -#ifdef VMS -# define unlink delete -# define GZ_SUFFIX "-gz" -#endif -#ifdef RISCOS -# define unlink remove -# define GZ_SUFFIX "-gz" -# define fileno(file) file->__file -#endif -#if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os -# include <unix.h> /* for fileno */ -#endif - -#ifndef WIN32 /* unlink already in stdio.h for WIN32 */ - extern int unlink OF((const char *)); -#endif - -#ifndef GZ_SUFFIX -# define GZ_SUFFIX ".gz" -#endif -#define SUFFIX_LEN (sizeof(GZ_SUFFIX)-1) - -#define BUFLEN 16384 -#define MAX_NAME_LEN 1024 - -#ifdef MAXSEG_64K -# define local static - /* Needed for systems with limitation on stack size. */ -#else -# define local -#endif - -char *prog; - -void error OF((const char *msg)); -void gz_compress OF((FILE *in, gzFile out)); -#ifdef USE_MMAP -int gz_compress_mmap OF((FILE *in, gzFile out)); -#endif -void gz_uncompress OF((gzFile in, FILE *out)); -void file_compress OF((char *file, char *mode)); -void file_uncompress OF((char *file)); -int main OF((int argc, char *argv[])); - -/* =========================================================================== - * Display error message and exit - */ -void error(msg) - const char *msg; -{ - fprintf(stderr, "%s: %s\n", prog, msg); - exit(1); -} - -/* =========================================================================== - * Compress input to output then close both files. - */ - -void gz_compress(in, out) - FILE *in; - gzFile out; -{ - local char buf[BUFLEN]; - int len; - int err; - -#ifdef USE_MMAP - /* Try first compressing with mmap. If mmap fails (minigzip used in a - * pipe), use the normal fread loop. - */ - if (gz_compress_mmap(in, out) == Z_OK) return; -#endif - for (;;) { - len = fread(buf, 1, sizeof(buf), in); - if (ferror(in)) { - perror("fread"); - exit(1); - } - if (len == 0) break; - - if (gzwrite(out, buf, (unsigned)len) != len) error(gzerror(out, &err)); - } - fclose(in); - if (gzclose(out) != Z_OK) error("failed gzclose"); -} - -#ifdef USE_MMAP /* MMAP version, Miguel Albrecht <malbrech@eso.org> */ - -/* Try compressing the input file at once using mmap. Return Z_OK if - * if success, Z_ERRNO otherwise. - */ -int gz_compress_mmap(in, out) - FILE *in; - gzFile out; -{ - int len; - int err; - int ifd = fileno(in); - caddr_t buf; /* mmap'ed buffer for the entire input file */ - off_t buf_len; /* length of the input file */ - struct stat sb; - - /* Determine the size of the file, needed for mmap: */ - if (fstat(ifd, &sb) < 0) return Z_ERRNO; - buf_len = sb.st_size; - if (buf_len <= 0) return Z_ERRNO; - - /* Now do the actual mmap: */ - buf = mmap((caddr_t) 0, buf_len, PROT_READ, MAP_SHARED, ifd, (off_t)0); - if (buf == (caddr_t)(-1)) return Z_ERRNO; - - /* Compress the whole file at once: */ - len = gzwrite(out, (char *)buf, (unsigned)buf_len); - - if (len != (int)buf_len) error(gzerror(out, &err)); - - munmap(buf, buf_len); - fclose(in); - if (gzclose(out) != Z_OK) error("failed gzclose"); - return Z_OK; -} -#endif /* USE_MMAP */ - -/* =========================================================================== - * Uncompress input to output then close both files. - */ -void gz_uncompress(in, out) - gzFile in; - FILE *out; -{ - local char buf[BUFLEN]; - int len; - int err; - - for (;;) { - len = gzread(in, buf, sizeof(buf)); - if (len < 0) error (gzerror(in, &err)); - if (len == 0) break; - - if ((int)fwrite(buf, 1, (unsigned)len, out) != len) { - error("failed fwrite"); - } - } - if (fclose(out)) error("failed fclose"); - - if (gzclose(in) != Z_OK) error("failed gzclose"); -} - - -/* =========================================================================== - * Compress the given file: create a corresponding .gz file and remove the - * original. - */ -void file_compress(file, mode) - char *file; - char *mode; -{ - local char outfile[MAX_NAME_LEN]; - FILE *in; - gzFile out; - - strcpy(outfile, file); - strcat(outfile, GZ_SUFFIX); - - in = fopen(file, "rb"); - if (in == NULL) { - perror(file); - exit(1); - } - out = gzopen(outfile, mode); - if (out == NULL) { - fprintf(stderr, "%s: can't gzopen %s\n", prog, outfile); - exit(1); - } - gz_compress(in, out); - - unlink(file); -} - - -/* =========================================================================== - * Uncompress the given file and remove the original. - */ -void file_uncompress(file) - char *file; -{ - local char buf[MAX_NAME_LEN]; - char *infile, *outfile; - FILE *out; - gzFile in; - int len = strlen(file); - - strcpy(buf, file); - - if (len > SUFFIX_LEN && strcmp(file+len-SUFFIX_LEN, GZ_SUFFIX) == 0) { - infile = file; - outfile = buf; - outfile[len-3] = '\0'; - } else { - outfile = file; - infile = buf; - strcat(infile, GZ_SUFFIX); - } - in = gzopen(infile, "rb"); - if (in == NULL) { - fprintf(stderr, "%s: can't gzopen %s\n", prog, infile); - exit(1); - } - out = fopen(outfile, "wb"); - if (out == NULL) { - perror(file); - exit(1); - } - - gz_uncompress(in, out); - - unlink(infile); -} - - -/* =========================================================================== - * Usage: minigzip [-d] [-f] [-h] [-1 to -9] [files...] - * -d : decompress - * -f : compress with Z_FILTERED - * -h : compress with Z_HUFFMAN_ONLY - * -1 to -9 : compression level - */ - -int main(argc, argv) - int argc; - char *argv[]; -{ - int uncompr = 0; - gzFile file; - char outmode[20]; - - strcpy(outmode, "wb6 "); - - prog = argv[0]; - argc--, argv++; - - while (argc > 0) { - if (strcmp(*argv, "-d") == 0) - uncompr = 1; - else if (strcmp(*argv, "-f") == 0) - outmode[3] = 'f'; - else if (strcmp(*argv, "-h") == 0) - outmode[3] = 'h'; - else if ((*argv)[0] == '-' && (*argv)[1] >= '1' && (*argv)[1] <= '9' && - (*argv)[2] == 0) - outmode[2] = (*argv)[1]; - else - break; - argc--, argv++; - } - if (argc == 0) { - SET_BINARY_MODE(stdin); - SET_BINARY_MODE(stdout); - if (uncompr) { - file = gzdopen(fileno(stdin), "rb"); - if (file == NULL) error("can't gzdopen stdin"); - gz_uncompress(file, stdout); - } else { - file = gzdopen(fileno(stdout), outmode); - if (file == NULL) error("can't gzdopen stdout"); - gz_compress(stdin, file); - } - } else { - do { - if (uncompr) { - file_uncompress(*argv); - } else { - file_compress(*argv, outmode); - } - } while (argv++, --argc); - } - exit(0); - return 0; /* to avoid warning */ -} diff --git a/zlib/msdos/Makefile.b32 b/zlib/msdos/Makefile.b32 deleted file mode 100644 index f476da91649..00000000000 --- a/zlib/msdos/Makefile.b32 +++ /dev/null @@ -1,104 +0,0 @@ -# Makefile for zlib -# Borland C++ - -# This version of the zlib makefile was adapted by Chris Young for use -# with Borland C 4.5x with the Dos Power Pack for a 32-bit protected mode -# flat memory model. It was created for use with POV-Ray ray tracer and -# you may choose to edit the CFLAGS to suit your needs but the -# switches -WX and -DMSDOS are required. -# -- Chris Young 76702.1655@compuserve.com - -# To use, do "make -fmakefile.b32" - -# See zconf.h for details about the memory requirements. - -# ------------- Borland C++ ------------- -MODEL=-WX -CFLAGS= $(MODEL) -P-C -K -N- -k- -d -3 -r- -v- -f -DMSDOS -CC=bcc32 -LD=bcc32 -LIB=tlib -LDFLAGS= $(MODEL) -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) -OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\ - infutil$(O)+inffast$(O) - -all: test - -adler32.obj: adler32.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -compress.obj: compress.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -crc32.obj: crc32.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -gzio.obj: gzio.c zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\ - infcodes.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\ - infcodes.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h - $(CC) -c $(CFLAGS) $*.c - -inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h - $(CC) -c $(CFLAGS) $*.c - -infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -uncompr.obj: uncompr.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -zutil.obj: zutil.c zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -example.obj: example.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -minigzip.obj: minigzip.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -# we must cut the command line to fit in the MS/DOS 128 byte limit: -zlib.lib: $(OBJ1) $(OBJ2) - del zlib.lib - $(LIB) zlib +$(OBJP1) - $(LIB) zlib +$(OBJP2) - -example.exe: example.obj zlib.lib - $(LD) $(LDFLAGS) example.obj zlib.lib - -minigzip.exe: minigzip.obj zlib.lib - $(LD) $(LDFLAGS) minigzip.obj zlib.lib - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/Makefile.bor b/zlib/msdos/Makefile.bor deleted file mode 100644 index f5651b40fec..00000000000 --- a/zlib/msdos/Makefile.bor +++ /dev/null @@ -1,125 +0,0 @@ -# Makefile for zlib -# Borland C++ ************ UNTESTED *********** - -# To use, do "make -fmakefile.bor" -# To compile in small model, set below: MODEL=s - -# WARNING: the small model is supported but only for small values of -# MAX_WBITS and MAX_MEM_LEVEL. For example: -# -DMAX_WBITS=11 -DDEF_WBITS=11 -DMAX_MEM_LEVEL=3 -# If you wish to reduce the memory requirements (default 256K for big -# objects plus a few K), you can add to the LOC macro below: -# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 -# See zconf.h for details about the memory requirements. - -# ------------- Turbo C++, Borland C++ ------------- - -# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7) -# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added -# to the declaration of LOC here: -LOC = $(LOCAL_ZLIB) - -# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc. -CPU_TYP = 0 - -# Memory model: one of s, m, c, l (small, medium, compact, large) -MODEL=l - -CC=bcc -# replace bcc with tcc for Turbo C++ 1.0, with bcc32 for the 32 bit version -LD=$(CC) -AR=tlib - -# compiler flags -CFLAGS=-O2 -Z -m$(MODEL) $(LOC) -# replace "-O2" by "-O -G -a -d" for Turbo C++ 1.0 - -LDFLAGS=-m$(MODEL) - -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) -OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\ - infutil$(O)+inffast$(O) - -ZLIB_H = zlib.h zconf.h -ZUTIL_H = zutil.h $(ZLIB_H) - -ZLIB_LIB = zlib_$(MODEL).lib - -all: test - -# individual dependencies and action rules: -adler32.obj: adler32.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -compress.obj: compress.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -crc32.obj: crc32.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -gzio.obj: gzio.c $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -inflate.obj: inflate.c $(ZUTIL_H) infblock.h - $(CC) -c $(CFLAGS) $*.c - -inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h - $(CC) -c $(CFLAGS) $*.c - -infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -uncompr.obj: uncompr.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -zutil.obj: zutil.c $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -example.obj: example.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -minigzip.obj: minigzip.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -# we must cut the command line to fit in the MS/DOS 128 byte limit: -$(ZLIB_LIB): $(OBJ1) $(OBJ2) - del $(ZLIB_LIB) - $(AR) $(ZLIB_LIB) +$(OBJP1) - $(AR) $(ZLIB_LIB) +$(OBJP2) - -example.exe: example.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) example.obj $(ZLIB_LIB) - -minigzip.exe: minigzip.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) minigzip.obj $(ZLIB_LIB) - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/Makefile.dj2 b/zlib/msdos/Makefile.dj2 deleted file mode 100644 index 0ab431c8a11..00000000000 --- a/zlib/msdos/Makefile.dj2 +++ /dev/null @@ -1,100 +0,0 @@ -# Makefile for zlib. Modified for djgpp v2.0 by F. J. Donahoe, 3/15/96. -# Copyright (C) 1995-1998 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, or to compile and test, type: -# -# make -fmakefile.dj2; make test -fmakefile.dj2 -# -# To install libz.a, zconf.h and zlib.h in the djgpp directories, type: -# -# make install -fmakefile.dj2 -# -# after first defining LIBRARY_PATH and INCLUDE_PATH in djgpp.env as -# in the sample below if the pattern of the DJGPP distribution is to -# be followed. Remember that, while <sp>'es around <=> are ignored in -# makefiles, they are *not* in batch files or in djgpp.env. -# - - - - - -# [make] -# INCLUDE_PATH=%\>;INCLUDE_PATH%%\DJDIR%\include -# LIBRARY_PATH=%\>;LIBRARY_PATH%%\DJDIR%\lib -# BUTT=-m486 -# - - - - - -# Alternately, these variables may be defined below, overriding the values -# in djgpp.env, as -# INCLUDE_PATH=c:\usr\include -# LIBRARY_PATH=c:\usr\lib - -CC=gcc - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is available, replace "copy /Y" with "cp -fp" . -CP=copy /Y -# If gnu install.exe is available, replace $(CP) with ginstall. -INSTALL=$(CP) -# The default value of RM is "rm -f." If "rm.exe" is found, comment out: -RM=del -LDLIBS=-L. -lz -LD=$(CC) -s -o -LDSHARED=$(CC) - -INCL=zlib.h zconf.h -LIBS=libz.a - -AR=ar rcs - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example.exe minigzip.exe - -test: all - ./example - echo hello world | .\minigzip | .\minigzip -d - -%.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -libz.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $@ $< $(LDLIBS) - -# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env . - -.PHONY : uninstall clean - -install: $(INCL) $(LIBS) - -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH) - -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH) - $(INSTALL) zlib.h $(INCLUDE_PATH) - $(INSTALL) zconf.h $(INCLUDE_PATH) - $(INSTALL) libz.a $(LIBRARY_PATH) - -uninstall: - $(RM) $(INCLUDE_PATH)\zlib.h - $(RM) $(INCLUDE_PATH)\zconf.h - $(RM) $(LIBRARY_PATH)\libz.a - -clean: - $(RM) *.d - $(RM) *.o - $(RM) *.exe - $(RM) libz.a - $(RM) foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif diff --git a/zlib/msdos/Makefile.emx b/zlib/msdos/Makefile.emx deleted file mode 100644 index 0e5e5cc4338..00000000000 --- a/zlib/msdos/Makefile.emx +++ /dev/null @@ -1,69 +0,0 @@ -# Makefile for zlib. Modified for emx 0.9c by Chr. Spieler, 6/17/98. -# Copyright (C) 1995-1998 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, or to compile and test, type: -# -# make -fmakefile.emx; make test -fmakefile.emx -# - -CC=gcc - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is available, replace "copy /Y" with "cp -fp" . -CP=copy /Y -# If gnu install.exe is available, replace $(CP) with ginstall. -INSTALL=$(CP) -# The default value of RM is "rm -f." If "rm.exe" is found, comment out: -RM=del -LDLIBS=-L. -lzlib -LD=$(CC) -s -o -LDSHARED=$(CC) - -INCL=zlib.h zconf.h -LIBS=zlib.a - -AR=ar rcs - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example.exe minigzip.exe - -test: all - ./example - echo hello world | .\minigzip | .\minigzip -d - -%.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -zlib.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $@ $< $(LDLIBS) - - -.PHONY : clean - -clean: - $(RM) *.d - $(RM) *.o - $(RM) *.exe - $(RM) zlib.a - $(RM) foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif diff --git a/zlib/msdos/Makefile.msc b/zlib/msdos/Makefile.msc deleted file mode 100644 index 562201d87ea..00000000000 --- a/zlib/msdos/Makefile.msc +++ /dev/null @@ -1,121 +0,0 @@ -# Makefile for zlib -# Microsoft C 5.1 or later - -# To use, do "make makefile.msc" -# To compile in small model, set below: MODEL=S - -# If you wish to reduce the memory requirements (default 256K for big -# objects plus a few K), you can add to the LOC macro below: -# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 -# See zconf.h for details about the memory requirements. - -# ------------- Microsoft C 5.1 and later ------------- - -# Optional nonstandard preprocessor flags (e.g. -DMAX_MEM_LEVEL=7) -# should be added to the environment via "set LOCAL_ZLIB=-DFOO" or added -# to the declaration of LOC here: -LOC = $(LOCAL_ZLIB) - -# Type for CPU required: 0: 8086, 1: 80186, 2: 80286, 3: 80386, etc. -CPU_TYP = 0 - -# Memory model: one of S, M, C, L (small, medium, compact, large) -MODEL=L - -CC=cl -CFLAGS=-nologo -A$(MODEL) -G$(CPU_TYP) -W3 -Oait -Gs $(LOC) -#-Ox generates bad code with MSC 5.1 -LIB_CFLAGS=-Zl $(CFLAGS) - -LD=link -LDFLAGS=/noi/e/st:0x1500/noe/farcall/packcode -# "/farcall/packcode" are only useful for `large code' memory models -# but should be a "no-op" for small code models. - -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) -OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\ - infutil$(O)+inffast$(O) - -ZLIB_H = zlib.h zconf.h -ZUTIL_H = zutil.h $(ZLIB_H) - -ZLIB_LIB = zlib_$(MODEL).lib - -all: $(ZLIB_LIB) example.exe minigzip.exe - -# individual dependencies and action rules: -adler32.obj: adler32.c $(ZLIB_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -compress.obj: compress.c $(ZLIB_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -crc32.obj: crc32.c $(ZLIB_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h $(ZUTIL_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -gzio.obj: gzio.c $(ZUTIL_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h - $(CC) -c $(LIB_CFLAGS) $*.c - -infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h - $(CC) -c $(LIB_CFLAGS) $*.c - -inflate.obj: inflate.c $(ZUTIL_H) infblock.h - $(CC) -c $(LIB_CFLAGS) $*.c - -inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h - $(CC) -c $(LIB_CFLAGS) $*.c - -infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h - $(CC) -c $(LIB_CFLAGS) $*.c - -inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h - $(CC) -c $(LIB_CFLAGS) $*.c - -trees.obj: trees.c deflate.h $(ZUTIL_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -uncompr.obj: uncompr.c $(ZLIB_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -zutil.obj: zutil.c $(ZUTIL_H) - $(CC) -c $(LIB_CFLAGS) $*.c - -example.obj: example.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -minigzip.obj: minigzip.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -# we must cut the command line to fit in the MS/DOS 128 byte limit: -$(ZLIB_LIB): $(OBJ1) $(OBJ2) - if exist $(ZLIB_LIB) del $(ZLIB_LIB) - lib $(ZLIB_LIB) $(OBJ1); - lib $(ZLIB_LIB) $(OBJ2); - -example.exe: example.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) example.obj,,,$(ZLIB_LIB); - -minigzip.exe: minigzip.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) minigzip.obj,,,$(ZLIB_LIB); - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/Makefile.tc b/zlib/msdos/Makefile.tc deleted file mode 100644 index 63e0550359f..00000000000 --- a/zlib/msdos/Makefile.tc +++ /dev/null @@ -1,108 +0,0 @@ -# Makefile for zlib -# TurboC 2.0 - -# To use, do "make -fmakefile.tc" -# To compile in small model, set below: MODEL=-ms - -# WARNING: the small model is supported but only for small values of -# MAX_WBITS and MAX_MEM_LEVEL. For example: -# -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 -# If you wish to reduce the memory requirements (default 256K for big -# objects plus a few K), you can add to CFLAGS below: -# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 -# See zconf.h for details about the memory requirements. - -# ------------- Turbo C 2.0 ------------- -MODEL=l -# CFLAGS=-O2 -G -Z -m$(MODEL) -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 -CFLAGS=-O2 -G -Z -m$(MODEL) -CC=tcc -I\tc\include -LD=tcc -L\tc\lib -AR=tlib -LDFLAGS=-m$(MODEL) -f- -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) -OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\ - infutil$(O)+inffast$(O) - -ZLIB_H = zlib.h zconf.h -ZUTIL_H = zutil.h $(ZLIB_H) - -ZLIB_LIB = zlib_$(MODEL).lib - -all: test - -adler32.obj: adler32.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -compress.obj: compress.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -crc32.obj: crc32.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -gzio.obj: gzio.c $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -infblock.obj: infblock.c $(ZUTIL_H) infblock.h inftrees.h infcodes.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -infcodes.obj: infcodes.c $(ZUTIL_H) inftrees.h infutil.h infcodes.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -inflate.obj: inflate.c $(ZUTIL_H) infblock.h - $(CC) -c $(CFLAGS) $*.c - -inftrees.obj: inftrees.c $(ZUTIL_H) inftrees.h - $(CC) -c $(CFLAGS) $*.c - -infutil.obj: infutil.c $(ZUTIL_H) inftrees.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -inffast.obj: inffast.c $(ZUTIL_H) inftrees.h infutil.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -uncompr.obj: uncompr.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -zutil.obj: zutil.c $(ZUTIL_H) - $(CC) -c $(CFLAGS) $*.c - -example.obj: example.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -minigzip.obj: minigzip.c $(ZLIB_H) - $(CC) -c $(CFLAGS) $*.c - -# we must cut the command line to fit in the MS/DOS 128 byte limit: -$(ZLIB_LIB): $(OBJ1) $(OBJ2) - del $(ZLIB_LIB) - $(AR) $(ZLIB_LIB) +$(OBJP1) - $(AR) $(ZLIB_LIB) +$(OBJP2) - -example.exe: example.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) -eexample.exe example.obj $(ZLIB_LIB) - -minigzip.exe: minigzip.obj $(ZLIB_LIB) - $(LD) $(LDFLAGS) -eminigzip.exe minigzip.obj $(ZLIB_LIB) - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/Makefile.w32 b/zlib/msdos/Makefile.w32 deleted file mode 100644 index 0a05fa9a469..00000000000 --- a/zlib/msdos/Makefile.w32 +++ /dev/null @@ -1,97 +0,0 @@ -# Makefile for zlib -# Microsoft 32-bit Visual C++ 4.0 or later (may work on earlier versions) - -# To use, do "nmake /f makefile.w32" - -# If you wish to reduce the memory requirements (default 256K for big -# objects plus a few K), you can add to CFLAGS below: -# -DMAX_MEM_LEVEL=7 -DMAX_WBITS=14 -# See zconf.h for details about the memory requirements. - -# ------------- Microsoft Visual C++ 4.0 and later ------------- -MODEL= -CFLAGS=-Ox -GA3s -nologo -W3 -CC=cl -LD=link -LDFLAGS= -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJP1 = adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O)+\ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) -OBJP2 = zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O)+\ - infutil$(O)+inffast$(O) - -all: zlib.lib example.exe minigzip.exe - -adler32.obj: adler32.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -compress.obj: compress.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -crc32.obj: crc32.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -gzio.obj: gzio.c zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\ - infcodes.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\ - infcodes.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h - $(CC) -c $(CFLAGS) $*.c - -inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h - $(CC) -c $(CFLAGS) $*.c - -infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h - $(CC) -c $(CFLAGS) $*.c - -inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h - $(CC) -c $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -uncompr.obj: uncompr.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -zutil.obj: zutil.c zutil.h zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -example.obj: example.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -minigzip.obj: minigzip.c zlib.h zconf.h - $(CC) -c $(CFLAGS) $*.c - -zlib.lib: $(OBJ1) $(OBJ2) - if exist zlib.lib del zlib.lib - lib /OUT:zlib.lib $(OBJ1) $(OBJ2) - -example.exe: example.obj zlib.lib - $(LD) $(LDFLAGS) example.obj zlib.lib /OUT:example.exe /SUBSYSTEM:CONSOLE - -minigzip.exe: minigzip.obj zlib.lib - $(LD) $(LDFLAGS) minigzip.obj zlib.lib /OUT:minigzip.exe /SUBSYSTEM:CONSOLE - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/Makefile.wat b/zlib/msdos/Makefile.wat deleted file mode 100644 index 44bf8607f6f..00000000000 --- a/zlib/msdos/Makefile.wat +++ /dev/null @@ -1,103 +0,0 @@ -# Makefile for zlib -# Watcom 10a - -# This version of the zlib makefile was adapted by Chris Young for use -# with Watcom 10a 32-bit protected mode flat memory model. It was created -# for use with POV-Ray ray tracer and you may choose to edit the CFLAGS to -# suit your needs but the -DMSDOS is required. -# -- Chris Young 76702.1655@compuserve.com - -# To use, do "wmake -f makefile.wat" - -# See zconf.h for details about the memory requirements. - -# ------------- Watcom 10a ------------- -MODEL=-mf -CFLAGS= $(MODEL) -fpi87 -fp5 -zp4 -5r -w5 -oneatx -DMSDOS -CC=wcc386 -LD=wcl386 -LIB=wlib -b -c -LDFLAGS= -O=.obj - -# variables -OBJ1=adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) -OBJ2=trees$(O) zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) -OBJ3=infutil$(O) inffast$(O) -OBJP1=adler32$(O)+compress$(O)+crc32$(O)+gzio$(O)+uncompr$(O)+deflate$(O) -OBJP2=trees$(O)+zutil$(O)+inflate$(O)+infblock$(O)+inftrees$(O)+infcodes$(O) -OBJP3=infutil$(O)+inffast$(O) - -all: test - -adler32.obj: adler32.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -compress.obj: compress.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -crc32.obj: crc32.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -gzio.obj: gzio.c zutil.h zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h & - infcodes.h infutil.h - $(CC) $(CFLAGS) $*.c - -infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h & - infcodes.h inffast.h - $(CC) $(CFLAGS) $*.c - -inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h - $(CC) $(CFLAGS) $*.c - -inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h - $(CC) $(CFLAGS) $*.c - -infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h - $(CC) $(CFLAGS) $*.c - -inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h - $(CC) $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -uncompr.obj: uncompr.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -zutil.obj: zutil.c zutil.h zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -example.obj: example.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -minigzip.obj: minigzip.c zlib.h zconf.h - $(CC) $(CFLAGS) $*.c - -# we must cut the command line to fit in the MS/DOS 128 byte limit: -zlib.lib: $(OBJ1) $(OBJ2) $(OBJ3) - del zlib.lib - $(LIB) zlib.lib +$(OBJP1) - $(LIB) zlib.lib +$(OBJP2) - $(LIB) zlib.lib +$(OBJP3) - -example.exe: example.obj zlib.lib - $(LD) $(LDFLAGS) example.obj zlib.lib - -minigzip.exe: minigzip.obj zlib.lib - $(LD) $(LDFLAGS) minigzip.obj zlib.lib - -test: minigzip.exe example.exe - example - echo hello world | minigzip | minigzip -d >test - type test - -#clean: -# del *.obj -# del *.exe diff --git a/zlib/msdos/zlib.def b/zlib/msdos/zlib.def deleted file mode 100644 index 6c04412f9b0..00000000000 --- a/zlib/msdos/zlib.def +++ /dev/null @@ -1,60 +0,0 @@ -LIBRARY "zlib" - -DESCRIPTION '"""zlib data compression library"""' - -EXETYPE NT - -SUBSYSTEM WINDOWS - -STUB 'WINSTUB.EXE' - -VERSION 1.13 - -CODE EXECUTE READ - -DATA READ WRITE - -HEAPSIZE 1048576,4096 - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 diff --git a/zlib/msdos/zlib.rc b/zlib/msdos/zlib.rc deleted file mode 100644 index 556d4ff950a..00000000000 --- a/zlib/msdos/zlib.rc +++ /dev/null @@ -1,32 +0,0 @@ -#include <windows.h> - -#define IDR_VERSION1 1 -IDR_VERSION1 VERSIONINFO MOVEABLE IMPURE LOADONCALL DISCARDABLE - FILEVERSION 1,1,3,0 - PRODUCTVERSION 1,1,3,0 - FILEFLAGSMASK VS_FFI_FILEFLAGSMASK - FILEFLAGS 0 - FILEOS VOS_DOS_WINDOWS32 - FILETYPE VFT_DLL - FILESUBTYPE 0 // not used -BEGIN - BLOCK "StringFileInfo" - BEGIN - BLOCK "040904E4" - //language ID = U.S. English, char set = Windows, Multilingual - - BEGIN - VALUE "FileDescription", "zlib data compression library\0" - VALUE "FileVersion", "1.1.3\0" - VALUE "InternalName", "zlib\0" - VALUE "OriginalFilename", "zlib.dll\0" - VALUE "ProductName", "ZLib.DLL\0" - VALUE "Comments","DLL support by Alessandro Iacopetti & Gilles Vollant\0" - VALUE "LegalCopyright", "(C) 1995-1998 Jean-loup Gailly & Mark Adler\0" - END - END - BLOCK "VarFileInfo" - BEGIN - VALUE "Translation", 0x0409, 1252 - END -END diff --git a/zlib/nt/Makefile.emx b/zlib/nt/Makefile.emx deleted file mode 100644 index 2d475b1847e..00000000000 --- a/zlib/nt/Makefile.emx +++ /dev/null @@ -1,138 +0,0 @@ -# Makefile for zlib. Modified for emx/rsxnt by Chr. Spieler, 6/16/98. -# Copyright (C) 1995-1998 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, or to compile and test, type: -# -# make -fmakefile.emx; make test -fmakefile.emx -# - -CC=gcc -Zwin32 - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is available, replace "copy /Y" with "cp -fp" . -CP=copy /Y -# If gnu install.exe is available, replace $(CP) with ginstall. -INSTALL=$(CP) -# The default value of RM is "rm -f." If "rm.exe" is found, comment out: -RM=del -LDLIBS=-L. -lzlib -LD=$(CC) -s -o -LDSHARED=$(CC) - -INCL=zlib.h zconf.h -LIBS=zlib.a - -AR=ar rcs - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example.exe minigzip.exe - -test: all - ./example - echo hello world | .\minigzip | .\minigzip -d - -%.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -zlib.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $@ $< $(LDLIBS) - - -.PHONY : clean - -clean: - $(RM) *.d - $(RM) *.o - $(RM) *.exe - $(RM) zlib.a - $(RM) foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif -# Makefile for zlib. Modified for emx 0.9c by Chr. Spieler, 6/17/98. -# Copyright (C) 1995-1998 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, or to compile and test, type: -# -# make -fmakefile.emx; make test -fmakefile.emx -# - -CC=gcc - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is available, replace "copy /Y" with "cp -fp" . -CP=copy /Y -# If gnu install.exe is available, replace $(CP) with ginstall. -INSTALL=$(CP) -# The default value of RM is "rm -f." If "rm.exe" is found, comment out: -RM=del -LDLIBS=-L. -lzlib -LD=$(CC) -s -o -LDSHARED=$(CC) - -INCL=zlib.h zconf.h -LIBS=zlib.a - -AR=ar rcs - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example.exe minigzip.exe - -test: all - ./example - echo hello world | .\minigzip | .\minigzip -d - -%.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -zlib.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $@ $< $(LDLIBS) - - -.PHONY : clean - -clean: - $(RM) *.d - $(RM) *.o - $(RM) *.exe - $(RM) zlib.a - $(RM) foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif diff --git a/zlib/nt/Makefile.gcc b/zlib/nt/Makefile.gcc deleted file mode 100644 index cdd652f2360..00000000000 --- a/zlib/nt/Makefile.gcc +++ /dev/null @@ -1,87 +0,0 @@ -# Makefile for zlib. Modified for mingw32 by C. Spieler, 6/16/98. -# (This Makefile is directly derived from Makefile.dj2) -# Copyright (C) 1995-1998 Jean-loup Gailly. -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile, or to compile and test, type: -# -# make -fmakefile.gcc; make test -fmakefile.gcc -# -# To install libz.a, zconf.h and zlib.h in the mingw32 directories, type: -# -# make install -fmakefile.gcc -# - -CC=gcc - -#CFLAGS=-MMD -O -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-MMD -g -DDEBUG -CFLAGS=-MMD -O3 $(BUTT) -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ - -Wstrict-prototypes -Wmissing-prototypes - -# If cp.exe is available, replace "copy /Y" with "cp -fp" . -CP=copy /Y -# If gnu install.exe is available, replace $(CP) with ginstall. -INSTALL=$(CP) -# The default value of RM is "rm -f." If "rm.exe" is found, comment out: -RM=del -LDLIBS=-L. -lz -LD=$(CC) -s -o -LDSHARED=$(CC) - -INCL=zlib.h zconf.h -LIBS=libz.a - -AR=ar rcs - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -all: example.exe minigzip.exe - -test: all - ./example - echo hello world | .\minigzip | .\minigzip -d - -%.o : %.c - $(CC) $(CFLAGS) -c $< -o $@ - -libz.a: $(OBJS) - $(AR) $@ $(OBJS) - -%.exe : %.o $(LIBS) - $(LD) $@ $< $(LDLIBS) - -# INCLUDE_PATH and LIBRARY_PATH were set for [make] in djgpp.env . - -.PHONY : uninstall clean - -install: $(INCL) $(LIBS) - -@if not exist $(INCLUDE_PATH)\nul mkdir $(INCLUDE_PATH) - -@if not exist $(LIBRARY_PATH)\nul mkdir $(LIBRARY_PATH) - $(INSTALL) zlib.h $(INCLUDE_PATH) - $(INSTALL) zconf.h $(INCLUDE_PATH) - $(INSTALL) libz.a $(LIBRARY_PATH) - -uninstall: - $(RM) $(INCLUDE_PATH)\zlib.h - $(RM) $(INCLUDE_PATH)\zconf.h - $(RM) $(LIBRARY_PATH)\libz.a - -clean: - $(RM) *.d - $(RM) *.o - $(RM) *.exe - $(RM) libz.a - $(RM) foo.gz - -DEPS := $(wildcard *.d) -ifneq ($(DEPS),) -include $(DEPS) -endif diff --git a/zlib/nt/Makefile.nt b/zlib/nt/Makefile.nt deleted file mode 100644 index b250f2ac7d2..00000000000 --- a/zlib/nt/Makefile.nt +++ /dev/null @@ -1,88 +0,0 @@ -# Makefile for zlib - -!include <ntwin32.mak> - -CC=cl -LD=link -CFLAGS=-O -nologo -LDFLAGS= -O=.obj - -# variables -OBJ1 = adler32$(O) compress$(O) crc32$(O) gzio$(O) uncompr$(O) deflate$(O) \ - trees$(O) -OBJ2 = zutil$(O) inflate$(O) infblock$(O) inftrees$(O) infcodes$(O) \ - infutil$(O) inffast$(O) - -all: zlib.dll example.exe minigzip.exe - -adler32.obj: adler32.c zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -compress.obj: compress.c zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -crc32.obj: crc32.c zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -deflate.obj: deflate.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -gzio.obj: gzio.c zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -infblock.obj: infblock.c zutil.h zlib.h zconf.h infblock.h inftrees.h\ - infcodes.h infutil.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -infcodes.obj: infcodes.c zutil.h zlib.h zconf.h inftrees.h infutil.h\ - infcodes.h inffast.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -inflate.obj: inflate.c zutil.h zlib.h zconf.h infblock.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -inftrees.obj: inftrees.c zutil.h zlib.h zconf.h inftrees.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -infutil.obj: infutil.c zutil.h zlib.h zconf.h inftrees.h infutil.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -inffast.obj: inffast.c zutil.h zlib.h zconf.h inftrees.h infutil.h inffast.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -trees.obj: trees.c deflate.h zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -uncompr.obj: uncompr.c zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -zutil.obj: zutil.c zutil.h zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -example.obj: example.c zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -minigzip.obj: minigzip.c zlib.h zconf.h - $(CC) -c $(cvarsdll) $(CFLAGS) $*.c - -zlib.dll: $(OBJ1) $(OBJ2) zlib.dnt - link $(dlllflags) -out:$@ -def:zlib.dnt $(OBJ1) $(OBJ2) $(guilibsdll) - -zlib.lib: zlib.dll - -example.exe: example.obj zlib.lib - $(LD) $(LDFLAGS) example.obj zlib.lib - -minigzip.exe: minigzip.obj zlib.lib - $(LD) $(LDFLAGS) minigzip.obj zlib.lib - -test: example.exe minigzip.exe - example - echo hello world | minigzip | minigzip -d - -clean: - del *.obj - del *.exe - del *.dll - del *.lib diff --git a/zlib/nt/zlib.dnt b/zlib/nt/zlib.dnt deleted file mode 100644 index 7f9475cfb0e..00000000000 --- a/zlib/nt/zlib.dnt +++ /dev/null @@ -1,47 +0,0 @@ -LIBRARY zlib.dll -EXETYPE WINDOWS -CODE PRELOAD MOVEABLE DISCARDABLE -DATA PRELOAD MOVEABLE MULTIPLE - -EXPORTS - adler32 @1 - compress @2 - crc32 @3 - deflate @4 - deflateCopy @5 - deflateEnd @6 - deflateInit2_ @7 - deflateInit_ @8 - deflateParams @9 - deflateReset @10 - deflateSetDictionary @11 - gzclose @12 - gzdopen @13 - gzerror @14 - gzflush @15 - gzopen @16 - gzread @17 - gzwrite @18 - inflate @19 - inflateEnd @20 - inflateInit2_ @21 - inflateInit_ @22 - inflateReset @23 - inflateSetDictionary @24 - inflateSync @25 - uncompress @26 - zlibVersion @27 - gzprintf @28 - gzputc @29 - gzgetc @30 - gzseek @31 - gzrewind @32 - gztell @33 - gzeof @34 - gzsetparams @35 - zError @36 - inflateSyncPoint @37 - get_crc_table @38 - compress2 @39 - gzputs @40 - gzgets @41 diff --git a/zlib/os2/Makefile.os2 b/zlib/os2/Makefile.os2 deleted file mode 100644 index 4f569471eca..00000000000 --- a/zlib/os2/Makefile.os2 +++ /dev/null @@ -1,136 +0,0 @@ -# Makefile for zlib under OS/2 using GCC (PGCC) -# For conditions of distribution and use, see copyright notice in zlib.h - -# To compile and test, type: -# cp Makefile.os2 .. -# cd .. -# make -f Makefile.os2 test - -# This makefile will build a static library z.lib, a shared library -# z.dll and a import library zdll.lib. You can use either z.lib or -# zdll.lib by specifying either -lz or -lzdll on gcc's command line - -CC=gcc -Zomf -s - -CFLAGS=-O6 -Wall -#CFLAGS=-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7 -#CFLAGS=-g -DDEBUG -#CFLAGS=-O3 -Wall -Wwrite-strings -Wpointer-arith -Wconversion \ -# -Wstrict-prototypes -Wmissing-prototypes - -#################### BUG WARNING: ##################### -## infcodes.c hits a bug in pgcc-1.0, so you have to use either -## -O# where # <= 4 or one of (-fno-ommit-frame-pointer or -fno-force-mem) -## This bug is reportedly fixed in pgcc >1.0, but this was not tested -CFLAGS+=-fno-force-mem - -LDFLAGS=-s -L. -lzdll -Zcrtdll -LDSHARED=$(CC) -s -Zomf -Zdll -Zcrtdll - -VER=1.1.0 -ZLIB=z.lib -SHAREDLIB=z.dll -SHAREDLIBIMP=zdll.lib -LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP) - -AR=emxomfar cr -IMPLIB=emximp -RANLIB=echo -TAR=tar -SHELL=bash - -prefix=/usr/local -exec_prefix = $(prefix) - -OBJS = adler32.o compress.o crc32.o gzio.o uncompr.o deflate.o trees.o \ - zutil.o inflate.o infblock.o inftrees.o infcodes.o infutil.o inffast.o - -TEST_OBJS = example.o minigzip.o - -DISTFILES = README INDEX ChangeLog configure Make*[a-z0-9] *.[ch] descrip.mms \ - algorithm.txt zlib.3 msdos/Make*[a-z0-9] msdos/zlib.def msdos/zlib.rc \ - nt/Makefile.nt nt/zlib.dnt contrib/README.contrib contrib/*.txt \ - contrib/asm386/*.asm contrib/asm386/*.c \ - contrib/asm386/*.bat contrib/asm386/zlibvc.d?? contrib/iostream/*.cpp \ - contrib/iostream/*.h contrib/iostream2/*.h contrib/iostream2/*.cpp \ - contrib/untgz/Makefile contrib/untgz/*.c contrib/untgz/*.w32 - -all: example.exe minigzip.exe - -test: all - @LD_LIBRARY_PATH=.:$(LD_LIBRARY_PATH) ; export LD_LIBRARY_PATH; \ - echo hello world | ./minigzip | ./minigzip -d || \ - echo ' *** minigzip test FAILED ***' ; \ - if ./example; then \ - echo ' *** zlib test OK ***'; \ - else \ - echo ' *** zlib test FAILED ***'; \ - fi - -$(ZLIB): $(OBJS) - $(AR) $@ $(OBJS) - -@ ($(RANLIB) $@ || true) >/dev/null 2>&1 - -$(SHAREDLIB): $(OBJS) os2/z.def - $(LDSHARED) -o $@ $^ - -$(SHAREDLIBIMP): os2/z.def - $(IMPLIB) -o $@ $^ - -example.exe: example.o $(LIBS) - $(CC) $(CFLAGS) -o $@ example.o $(LDFLAGS) - -minigzip.exe: minigzip.o $(LIBS) - $(CC) $(CFLAGS) -o $@ minigzip.o $(LDFLAGS) - -clean: - rm -f *.o *~ example minigzip libz.a libz.so* foo.gz - -distclean: clean - -zip: - mv Makefile Makefile~; cp -p Makefile.in Makefile - rm -f test.c ztest*.c - v=`sed -n -e 's/\.//g' -e '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\ - zip -ul9 zlib$$v $(DISTFILES) - mv Makefile~ Makefile - -dist: - mv Makefile Makefile~; cp -p Makefile.in Makefile - rm -f test.c ztest*.c - d=zlib-`sed -n '/VERSION "/s/.*"\(.*\)".*/\1/p' < zlib.h`;\ - rm -f $$d.tar.gz; \ - if test ! -d ../$$d; then rm -f ../$$d; ln -s `pwd` ../$$d; fi; \ - files=""; \ - for f in $(DISTFILES); do files="$$files $$d/$$f"; done; \ - cd ..; \ - GZIP=-9 $(TAR) chofz $$d/$$d.tar.gz $$files; \ - if test ! -d $$d; then rm -f $$d; fi - mv Makefile~ Makefile - -tags: - etags *.[ch] - -depend: - makedepend -- $(CFLAGS) -- *.[ch] - -# DO NOT DELETE THIS LINE -- make depend depends on it. - -adler32.o: zlib.h zconf.h -compress.o: zlib.h zconf.h -crc32.o: zlib.h zconf.h -deflate.o: deflate.h zutil.h zlib.h zconf.h -example.o: zlib.h zconf.h -gzio.o: zutil.h zlib.h zconf.h -infblock.o: infblock.h inftrees.h infcodes.h infutil.h zutil.h zlib.h zconf.h -infcodes.o: zutil.h zlib.h zconf.h -infcodes.o: inftrees.h infblock.h infcodes.h infutil.h inffast.h -inffast.o: zutil.h zlib.h zconf.h inftrees.h -inffast.o: infblock.h infcodes.h infutil.h inffast.h -inflate.o: zutil.h zlib.h zconf.h infblock.h -inftrees.o: zutil.h zlib.h zconf.h inftrees.h -infutil.o: zutil.h zlib.h zconf.h infblock.h inftrees.h infcodes.h infutil.h -minigzip.o: zlib.h zconf.h -trees.o: deflate.h zutil.h zlib.h zconf.h trees.h -uncompr.o: zlib.h zconf.h -zutil.o: zutil.h zlib.h zconf.h diff --git a/zlib/os2/zlib.def b/zlib/os2/zlib.def deleted file mode 100644 index 4c753f1a3b9..00000000000 --- a/zlib/os2/zlib.def +++ /dev/null @@ -1,51 +0,0 @@ -; -; Slightly modified version of ../nt/zlib.dnt :-) -; - -LIBRARY Z -DESCRIPTION "Zlib compression library for OS/2" -CODE PRELOAD MOVEABLE DISCARDABLE -DATA PRELOAD MOVEABLE MULTIPLE - -EXPORTS - adler32 - compress - crc32 - deflate - deflateCopy - deflateEnd - deflateInit2_ - deflateInit_ - deflateParams - deflateReset - deflateSetDictionary - gzclose - gzdopen - gzerror - gzflush - gzopen - gzread - gzwrite - inflate - inflateEnd - inflateInit2_ - inflateInit_ - inflateReset - inflateSetDictionary - inflateSync - uncompress - zlibVersion - gzprintf - gzputc - gzgetc - gzseek - gzrewind - gztell - gzeof - gzsetparams - zError - inflateSyncPoint - get_crc_table - compress2 - gzputs - gzgets diff --git a/zlib/readme b/zlib/readme deleted file mode 100644 index 29d67146a9b..00000000000 --- a/zlib/readme +++ /dev/null @@ -1,147 +0,0 @@ -zlib 1.1.4 is a general purpose data compression library. All the code -is thread safe. The data format used by the zlib library -is described by RFCs (Request for Comments) 1950 to 1952 in the files -http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate -format) and rfc1952.txt (gzip format). These documents are also available in -other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html - -All functions of the compression library are documented in the file zlib.h -(volunteer to write man pages welcome, contact jloup@gzip.org). A usage -example of the library is given in the file example.c which also tests that -the library is working correctly. Another example is given in the file -minigzip.c. The compression library itself is composed of all source files -except example.c and minigzip.c. - -To compile all files and run the test program, follow the instructions -given at the top of Makefile. In short "make test; make install" -should work for most machines. For Unix: "./configure; make test; make install" -For MSDOS, use one of the special makefiles such as Makefile.msc. -For VMS, use Make_vms.com or descrip.mms. - -Questions about zlib should be sent to <zlib@gzip.org>, or to -Gilles Vollant <info@winimage.com> for the Windows DLL version. -The zlib home page is http://www.zlib.org or http://www.gzip.org/zlib/ -Before reporting a problem, please check this site to verify that -you have the latest version of zlib; otherwise get the latest version and -check whether the problem still exists or not. - -PLEASE read the zlib FAQ http://www.gzip.org/zlib/zlib_faq.html -before asking for help. - -Mark Nelson <markn@ieee.org> wrote an article about zlib for the Jan. 1997 -issue of Dr. Dobb's Journal; a copy of the article is available in -http://dogma.net/markn/articles/zlibtool/zlibtool.htm - -The changes made in version 1.1.4 are documented in the file ChangeLog. -The only changes made since 1.1.3 are bug corrections: - -- ZFREE was repeated on same allocation on some error conditions. - This creates a security problem described in - http://www.zlib.org/advisory-2002-03-11.txt -- Returned incorrect error (Z_MEM_ERROR) on some invalid data -- Avoid accesses before window for invalid distances with inflate window - less than 32K. -- force windowBits > 8 to avoid a bug in the encoder for a window size - of 256 bytes. (A complete fix will be available in 1.1.5). - -The beta version 1.1.5beta includes many more changes. A new official -version 1.1.5 will be released as soon as extensive testing has been -completed on it. - - -Unsupported third party contributions are provided in directory "contrib". - -A Java implementation of zlib is available in the Java Development Kit -http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html -See the zlib home page http://www.zlib.org for details. - -A Perl interface to zlib written by Paul Marquess <pmarquess@bfsec.bt.co.uk> -is in the CPAN (Comprehensive Perl Archive Network) sites -http://www.cpan.org/modules/by-module/Compress/ - -A Python interface to zlib written by A.M. Kuchling <amk@magnet.com> -is available in Python 1.5 and later versions, see -http://www.python.org/doc/lib/module-zlib.html - -A zlib binding for TCL written by Andreas Kupries <a.kupries@westend.com> -is availlable at http://www.westend.com/~kupries/doc/trf/man/man.html - -An experimental package to read and write files in .zip format, -written on top of zlib by Gilles Vollant <info@winimage.com>, is -available at http://www.winimage.com/zLibDll/unzip.html -and also in the contrib/minizip directory of zlib. - - -Notes for some targets: - -- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc - and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL - The zlib DLL support was initially done by Alessandro Iacopetti and is - now maintained by Gilles Vollant <info@winimage.com>. Check the zlib DLL - home page at http://www.winimage.com/zLibDll - - From Visual Basic, you can call the DLL functions which do not take - a structure as argument: compress, uncompress and all gz* functions. - See contrib/visual-basic.txt for more information, or get - http://www.tcfb.com/dowseware/cmp-z-it.zip - -- For 64-bit Irix, deflate.c must be compiled without any optimization. - With -O, one libpng test fails. The test works in 32 bit mode (with - the -n32 compiler flag). The compiler bug has been reported to SGI. - -- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1 - it works when compiled with cc. - -- on Digital Unix 4.0D (formely OSF/1) on AlphaServer, the cc option -std1 - is necessary to get gzprintf working correctly. This is done by configure. - -- zlib doesn't work on HP-UX 9.05 with some versions of /bin/cc. It works - with other compilers. Use "make test" to check your compiler. - -- gzdopen is not supported on RISCOS, BEOS and by some Mac compilers. - -- For Turbo C the small model is supported only with reduced performance to - avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 - -- For PalmOs, see http://www.cs.uit.no/~perm/PASTA/pilot/software.html - Per Harald Myrvang <perm@stud.cs.uit.no> - - -Acknowledgments: - - The deflate format used by zlib was defined by Phil Katz. The deflate - and zlib specifications were written by L. Peter Deutsch. Thanks to all the - people who reported problems and suggested various improvements in zlib; - they are too numerous to cite here. - -Copyright notice: - - (C) 1995-2002 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - -If you use the zlib library in a product, we would appreciate *not* -receiving lengthy legal documents to sign. The sources are provided -for free but without warranty of any kind. The library has been -entirely written by Jean-loup Gailly and Mark Adler; it does not -include third-party code. - -If you redistribute modified sources, we would appreciate that you include -in the file ChangeLog history information documenting your changes. diff --git a/zlib/trees.c b/zlib/trees.c index 0a984056738..bb09554938b 100644 --- a/zlib/trees.c +++ b/zlib/trees.c @@ -1,6 +1,6 @@ /* trees.c -- output deflated data using Huffman coding - * Copyright (C) 1995-2002 Jean-loup Gailly - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Jean-loup Gailly + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @@ -230,7 +230,6 @@ local void send_bits(s, value, length) #endif /* DEBUG */ -#define MAX(a,b) (a >= b ? a : b) /* the arguments must not have side effects */ /* =========================================================================== @@ -335,42 +334,42 @@ void gen_trees_header() Assert (header != NULL, "Can't open trees.h"); fprintf(header, - "/* header created automatically with -DGEN_TREES_H */\n\n"); + "/* header created automatically with -DGEN_TREES_H */\n\n"); fprintf(header, "local const ct_data static_ltree[L_CODES+2] = {\n"); for (i = 0; i < L_CODES+2; i++) { - fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, - static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); + fprintf(header, "{{%3u},{%3u}}%s", static_ltree[i].Code, + static_ltree[i].Len, SEPARATOR(i, L_CODES+1, 5)); } fprintf(header, "local const ct_data static_dtree[D_CODES] = {\n"); for (i = 0; i < D_CODES; i++) { - fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, - static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); + fprintf(header, "{{%2u},{%2u}}%s", static_dtree[i].Code, + static_dtree[i].Len, SEPARATOR(i, D_CODES-1, 5)); } fprintf(header, "const uch _dist_code[DIST_CODE_LEN] = {\n"); for (i = 0; i < DIST_CODE_LEN; i++) { - fprintf(header, "%2u%s", _dist_code[i], - SEPARATOR(i, DIST_CODE_LEN-1, 20)); + fprintf(header, "%2u%s", _dist_code[i], + SEPARATOR(i, DIST_CODE_LEN-1, 20)); } fprintf(header, "const uch _length_code[MAX_MATCH-MIN_MATCH+1]= {\n"); for (i = 0; i < MAX_MATCH-MIN_MATCH+1; i++) { - fprintf(header, "%2u%s", _length_code[i], - SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); + fprintf(header, "%2u%s", _length_code[i], + SEPARATOR(i, MAX_MATCH-MIN_MATCH, 20)); } fprintf(header, "local const int base_length[LENGTH_CODES] = {\n"); for (i = 0; i < LENGTH_CODES; i++) { - fprintf(header, "%1u%s", base_length[i], - SEPARATOR(i, LENGTH_CODES-1, 20)); + fprintf(header, "%1u%s", base_length[i], + SEPARATOR(i, LENGTH_CODES-1, 20)); } fprintf(header, "local const int base_dist[D_CODES] = {\n"); for (i = 0; i < D_CODES; i++) { - fprintf(header, "%5u%s", base_dist[i], - SEPARATOR(i, D_CODES-1, 10)); + fprintf(header, "%5u%s", base_dist[i], + SEPARATOR(i, D_CODES-1, 10)); } fclose(header); @@ -675,7 +674,8 @@ local void build_tree(s, desc) /* Create a new node father of n and m */ tree[node].Freq = tree[n].Freq + tree[m].Freq; - s->depth[node] = (uch) (MAX(s->depth[n], s->depth[m]) + 1); + s->depth[node] = (uch)((s->depth[n] >= s->depth[m] ? + s->depth[n] : s->depth[m]) + 1); tree[n].Dad = tree[m].Dad = (ush)node; #ifdef DUMP_BL_TREE if (tree == s->bl_tree) { @@ -930,39 +930,39 @@ void _tr_flush_block(s, buf, stored_len, eof) /* Build the Huffman trees unless a stored block is forced */ if (s->level > 0) { - /* Check if the file is ascii or binary */ - if (s->data_type == Z_UNKNOWN) set_data_type(s); + /* Check if the file is ascii or binary */ + if (s->data_type == Z_UNKNOWN) set_data_type(s); - /* Construct the literal and distance trees */ - build_tree(s, (tree_desc *)(&(s->l_desc))); - Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); + /* Construct the literal and distance trees */ + build_tree(s, (tree_desc *)(&(s->l_desc))); + Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); - build_tree(s, (tree_desc *)(&(s->d_desc))); - Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ + build_tree(s, (tree_desc *)(&(s->d_desc))); + Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, + s->static_len)); + /* At this point, opt_len and static_len are the total bit lengths of + * the compressed block data, excluding the tree representations. + */ - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); + /* Build the bit length tree for the above two trees, and get the index + * in bl_order of the last bit length code to send. + */ + max_blindex = build_bl_tree(s); - /* Determine the best encoding. Compute first the block length in bytes*/ - opt_lenb = (s->opt_len+3+7)>>3; - static_lenb = (s->static_len+3+7)>>3; + /* Determine the best encoding. Compute the block lengths in bytes. */ + opt_lenb = (s->opt_len+3+7)>>3; + static_lenb = (s->static_len+3+7)>>3; - Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - s->last_lit)); + Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", + opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, + s->last_lit)); - if (static_lenb <= opt_lenb) opt_lenb = static_lenb; + if (static_lenb <= opt_lenb) opt_lenb = static_lenb; } else { Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ + opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ } #ifdef FORCE_STORED @@ -1107,7 +1107,8 @@ local void compress_block(s, ltree, dtree) } /* literal or match pair ? */ /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - Assert(s->pending < s->lit_bufsize + 2*lx, "pendingBuf overflow"); + Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, + "pendingBuf overflow"); } while (lx < s->last_lit); @@ -1199,7 +1200,7 @@ local void copy_block(s, buf, len, header) s->last_eob_len = 8; /* enough lookahead for inflate */ if (header) { - put_short(s, (ush)len); + put_short(s, (ush)len); put_short(s, (ush)~len); #ifdef DEBUG s->bits_sent += 2*16; diff --git a/zlib/uncompr.c b/zlib/uncompr.c index a287714f5de..b59e3d0defb 100644 --- a/zlib/uncompr.c +++ b/zlib/uncompr.c @@ -1,10 +1,11 @@ /* uncompr.c -- decompress a memory buffer - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ +#define ZLIB_INTERNAL #include "zlib.h" /* =========================================================================== @@ -49,7 +50,9 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen) err = inflate(&stream, Z_FINISH); if (err != Z_STREAM_END) { inflateEnd(&stream); - return err == Z_OK ? Z_BUF_ERROR : err; + if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0)) + return Z_DATA_ERROR; + return err; } *destLen = stream.total_out; diff --git a/zlib/zconf.h b/zlib/zconf.h index eb0ae2e1a0c..3cea897eda7 100644 --- a/zlib/zconf.h +++ b/zlib/zconf.h @@ -1,102 +1,126 @@ /* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ -#ifndef _ZCONF_H -#define _ZCONF_H +#ifndef ZCONF_H +#define ZCONF_H /* * If you *really* need a unique prefix for all types and library functions, * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. */ #ifdef Z_PREFIX -# define deflateInit_ z_deflateInit_ -# define deflate z_deflate -# define deflateEnd z_deflateEnd -# define inflateInit_ z_inflateInit_ -# define inflate z_inflate -# define inflateEnd z_inflateEnd -# define deflateInit2_ z_deflateInit2_ +# define deflateInit_ z_deflateInit_ +# define deflate z_deflate +# define deflateEnd z_deflateEnd +# define inflateInit_ z_inflateInit_ +# define inflate z_inflate +# define inflateEnd z_inflateEnd +# define deflateInit2_ z_deflateInit2_ # define deflateSetDictionary z_deflateSetDictionary -# define deflateCopy z_deflateCopy -# define deflateReset z_deflateReset -# define deflateParams z_deflateParams -# define inflateInit2_ z_inflateInit2_ +# define deflateCopy z_deflateCopy +# define deflateReset z_deflateReset +# define deflatePrime z_deflatePrime +# define deflateParams z_deflateParams +# define deflateBound z_deflateBound +# define inflateInit2_ z_inflateInit2_ # define inflateSetDictionary z_inflateSetDictionary -# define inflateSync z_inflateSync +# define inflateSync z_inflateSync # define inflateSyncPoint z_inflateSyncPoint -# define inflateReset z_inflateReset -# define compress z_compress -# define compress2 z_compress2 -# define uncompress z_uncompress -# define adler32 z_adler32 -# define crc32 z_crc32 +# define inflateCopy z_inflateCopy +# define inflateReset z_inflateReset +# define compress z_compress +# define compress2 z_compress2 +# define compressBound z_compressBound +# define uncompress z_uncompress +# define adler32 z_adler32 +# define crc32 z_crc32 # define get_crc_table z_get_crc_table -# define Byte z_Byte -# define uInt z_uInt -# define uLong z_uLong -# define Bytef z_Bytef -# define charf z_charf -# define intf z_intf -# define uIntf z_uIntf -# define uLongf z_uLongf -# define voidpf z_voidpf -# define voidp z_voidp +# define Byte z_Byte +# define uInt z_uInt +# define uLong z_uLong +# define Bytef z_Bytef +# define charf z_charf +# define intf z_intf +# define uIntf z_uIntf +# define uLongf z_uLongf +# define voidpf z_voidpf +# define voidp z_voidp #endif +#if defined(__MSDOS__) && !defined(MSDOS) +# define MSDOS +#endif +#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2) +# define OS2 +#endif +#if defined(_WINDOWS) && !defined(WINDOWS) +# define WINDOWS +#endif #if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) # define WIN32 #endif -#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386) -# ifndef __32BIT__ -# define __32BIT__ +#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32) +# if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__) +# ifndef SYS16BIT +# define SYS16BIT +# endif # endif #endif -#if defined(__MSDOS__) && !defined(MSDOS) -# define MSDOS -#endif /* * Compile with -DMAXSEG_64K if the alloc function cannot allocate more * than 64k bytes at a time (needed on systems with 16-bit int). */ -#if defined(MSDOS) && !defined(__32BIT__) +#ifdef SYS16BIT # define MAXSEG_64K #endif #ifdef MSDOS # define UNALIGNED_OK #endif -#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32)) && !defined(STDC) -# define STDC -#endif -#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) +#ifdef __STDC_VERSION__ # ifndef STDC # define STDC # endif +# if __STDC_VERSION__ >= 199901L +# ifndef STDC99 +# define STDC99 +# endif +# endif +#endif +#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus)) +# define STDC +#endif +#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__)) +# define STDC +#endif +#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32)) +# define STDC +#endif +#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__)) +# define STDC +#endif + +#if defined(__OS400__) && !defined(STDC) /* iSeries (formerly AS/400). */ +# define STDC #endif #ifndef STDC # ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */ -# define const +# define const /* note: need a more gentle solution here */ # endif #endif /* Some Mac compilers merge all .h files incorrectly: */ -#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) +#if defined(__MWERKS__)||defined(applec)||defined(THINK_C)||defined(__SC__) # define NO_DUMMY_DECL #endif -/* Old Borland C incorrectly complains about missing returns: */ -#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) -# define NEED_DUMMY_RETURN -#endif - - /* Maximum value for memLevel in deflateInit2 */ #ifndef MAX_MEM_LEVEL # ifdef MAXSEG_64K @@ -144,73 +168,87 @@ * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, * just define FAR to be empty. */ -#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) - /* MSC small or medium model */ -# define SMALL_MEDIUM -# ifdef _MSC_VER -# define FAR _far -# else -# define FAR far +#ifdef SYS16BIT +# if defined(M_I86SM) || defined(M_I86MM) + /* MSC small or medium model */ +# define SMALL_MEDIUM +# ifdef _MSC_VER +# define FAR _far +# else +# define FAR far +# endif # endif -#endif -#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) -# ifndef __32BIT__ +# if (defined(__SMALL__) || defined(__MEDIUM__)) + /* Turbo C small or medium model */ # define SMALL_MEDIUM -# define FAR _far +# ifdef __BORLANDC__ +# define FAR _far +# else +# define FAR far +# endif # endif #endif -/* Compile with -DZLIB_DLL for Windows DLL support */ -#if defined(ZLIB_DLL) -# if defined(_WINDOWS) || defined(WINDOWS) +#if defined(WINDOWS) || defined(WIN32) + /* If building or using zlib as a DLL, define ZLIB_DLL. + * This is not mandatory, but it offers a little performance increase. + */ +# ifdef ZLIB_DLL +# if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500)) +# ifdef ZLIB_INTERNAL +# define ZEXTERN extern __declspec(dllexport) +# else +# define ZEXTERN extern __declspec(dllimport) +# endif +# endif +# endif /* ZLIB_DLL */ + /* If building or using zlib with the WINAPI/WINAPIV calling convention, + * define ZLIB_WINAPI. + * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. + */ +# ifdef ZLIB_WINAPI # ifdef FAR # undef FAR # endif # include <windows.h> -# define ZEXPORT WINAPI + /* No need for _export, use ZLIB.DEF instead. */ + /* For complete Windows compatibility, use WINAPI, not __stdcall. */ +# define ZEXPORT WINAPI # ifdef WIN32 -# define ZEXPORTVA WINAPIV +# define ZEXPORTVA WINAPIV # else -# define ZEXPORTVA FAR _cdecl _export -# endif -# endif -# if defined (__BORLANDC__) -# if (__BORLANDC__ >= 0x0500) && defined (WIN32) -# include <windows.h> -# define ZEXPORT __declspec(dllexport) WINAPI -# define ZEXPORTRVA __declspec(dllexport) WINAPIV -# else -# if defined (_Windows) && defined (__DLL__) -# define ZEXPORT _export -# define ZEXPORTVA _export -# endif +# define ZEXPORTVA FAR CDECL # endif # endif #endif #if defined (__BEOS__) -# if defined (ZLIB_DLL) -# define ZEXTERN extern __declspec(dllexport) -# else -# define ZEXTERN extern __declspec(dllimport) +# ifdef ZLIB_DLL +# ifdef ZLIB_INTERNAL +# define ZEXPORT __declspec(dllexport) +# define ZEXPORTVA __declspec(dllexport) +# else +# define ZEXPORT __declspec(dllimport) +# define ZEXPORTVA __declspec(dllimport) +# endif # endif #endif +#ifndef ZEXTERN +# define ZEXTERN extern +#endif #ifndef ZEXPORT # define ZEXPORT #endif #ifndef ZEXPORTVA # define ZEXPORTVA #endif -#ifndef ZEXTERN -# define ZEXTERN extern -#endif #ifndef FAR -# define FAR +# define FAR #endif -#if !defined(MACOS) && !defined(TARGET_OS_MAC) +#if !defined(__MACTYPES__) typedef unsigned char Byte; /* 8 bits */ #endif typedef unsigned int uInt; /* 16 bits or more */ @@ -228,16 +266,21 @@ typedef uInt FAR uIntf; typedef uLong FAR uLongf; #ifdef STDC - typedef void FAR *voidpf; - typedef void *voidp; + typedef void const *voidpc; + typedef void FAR *voidpf; + typedef void *voidp; #else - typedef Byte FAR *voidpf; - typedef Byte *voidp; + typedef Byte const *voidpc; + typedef Byte FAR *voidpf; + typedef Byte *voidp; #endif -#ifdef HAVE_UNISTD_H +#if 0 /* HAVE_UNISTD_H -- this line is updated by ./configure */ # include <sys/types.h> /* for off_t */ # include <unistd.h> /* for SEEK_* and off_t */ +# ifdef VMS +# include <unixio.h> /* for off_t */ +# endif # define z_off_t off_t #endif #ifndef SEEK_SET @@ -249,31 +292,32 @@ typedef uLong FAR uLongf; # define z_off_t long #endif +#if defined(__OS400__) +#define NO_vsnprintf +#endif + +#if defined(__MVS__) +# define NO_vsnprintf +# ifdef FAR +# undef FAR +# endif +#endif + /* MVS linker does not support external names larger than 8 bytes */ #if defined(__MVS__) # pragma map(deflateInit_,"DEIN") # pragma map(deflateInit2_,"DEIN2") # pragma map(deflateEnd,"DEEND") +# pragma map(deflateBound,"DEBND") # pragma map(inflateInit_,"ININ") # pragma map(inflateInit2_,"ININ2") # pragma map(inflateEnd,"INEND") # pragma map(inflateSync,"INSY") # pragma map(inflateSetDictionary,"INSEDI") -# pragma map(inflate_blocks,"INBL") -# pragma map(inflate_blocks_new,"INBLNE") -# pragma map(inflate_blocks_free,"INBLFR") -# pragma map(inflate_blocks_reset,"INBLRE") -# pragma map(inflate_codes_free,"INCOFR") -# pragma map(inflate_codes,"INCO") +# pragma map(compressBound,"CMBND") +# pragma map(inflate_table,"INTABL") # pragma map(inflate_fast,"INFA") -# pragma map(inflate_flush,"INFLU") -# pragma map(inflate_mask,"INMA") -# pragma map(inflate_set_dictionary,"INSEDI2") # pragma map(inflate_copyright,"INCOPY") -# pragma map(inflate_trees_bits,"INTRBI") -# pragma map(inflate_trees_dynamic,"INTRDY") -# pragma map(inflate_trees_fixed,"INTRFI") -# pragma map(inflate_trees_free,"INTRFR") #endif -#endif /* _ZCONF_H */ +#endif /* ZCONF_H */ diff --git a/zlib/zlib.3 b/zlib/zlib.3 index 3a6e45047fe..890098449dd 100644 --- a/zlib/zlib.3 +++ b/zlib/zlib.3 @@ -1,4 +1,4 @@ -.TH ZLIB 3 "11 March 2002" +.TH ZLIB 3 "17 November 2003" .SH NAME zlib \- compression/decompression library .SH SYNOPSIS @@ -13,7 +13,8 @@ The code is thread safe. It provides in-memory compression and decompression functions, including integrity checks of the uncompressed data. This version of the library supports only one compression method (deflation) -but other algorithms will be added later and will have the same stream interface. +but other algorithms will be added later +and will have the same stream interface. .LP Compression can be done in a single step if the buffers are large enough (for example if an input file is mmap'ed), @@ -23,66 +24,117 @@ the application must provide more input and/or consume the output (providing more output space) before each call. .LP The library also supports reading and writing files in -.I gzip +.IR gzip (1) (.gz) format with an interface similar to that of stdio. .LP -The library does not install any signal handler. The decoder checks -the consistency of the compressed data, so the library should never -crash even in case of corrupted input. +The library does not install any signal handler. +The decoder checks the consistency of the compressed data, +so the library should never crash even in case of corrupted input. .LP All functions of the compression library are documented in the file -.IR zlib.h. +.IR zlib.h . The distribution source includes examples of use of the library -the files +in the files .I example.c and .IR minigzip.c . .LP +Changes to this version are documented in the file +.I ChangeLog +that accompanies the source, +and are concerned primarily with bug fixes and portability enhancements. +.LP A Java implementation of -.IR zlib -is available in the Java Development Kit 1.1 +.I zlib +is available in the Java Development Kit 1.1: .IP http://www.javasoft.com/products/JDK/1.1/docs/api/Package-java.util.zip.html .LP A Perl interface to .IR zlib , -written by Paul Marquess (pmarquess@bfsec.bt.co.uk) +written by Paul Marquess (pmqs@cpan.org), is available at CPAN (Comprehensive Perl Archive Network) sites, -such as: +including: .IP -ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib* +http://www.cpan.org/modules/by-module/Compress/ .LP A Python interface to -.IR zlib -written by A.M. Kuchling <amk@magnet.com> -is available from the Python Software Association sites, such as: +.IR zlib , +written by A.M. Kuchling (amk@magnet.com), +is available in Python 1.5 and later versions: .IP -ftp://ftp.python.org/pub/python/contrib/Encoding/zlib*.tar.gz -.SH "SEE ALSO" -Questions about zlib should be sent to: +http://www.python.org/doc/lib/module-zlib.html +.LP +A +.I zlib +binding for +.IR tcl (1), +written by Andreas Kupries (a.kupries@westend.com), +is availlable at: .IP -zlib@quest.jpl.nasa.gov -or, if this fails, to the author addresses given below. -The zlib home page is: +http://www.westend.com/~kupries/doc/trf/man/man.html +.LP +An experimental package to read and write files in .zip format, +written on top of +.I zlib +by Gilles Vollant (info@winimage.com), +is available at: +.IP +http://www.winimage.com/zLibDll/unzip.html +and also in the +.I contrib/minizip +directory of the main +.I zlib +web site. +.SH "SEE ALSO" +The +.I zlib +web site can be found at either of these locations: .IP -http://www.cdrom.com/pub/infozip/zlib/ +http://www.zlib.org +.br +http://www.gzip.org/zlib/ .LP The data format used by the zlib library is described by RFC -(Request for Comments) 1950 to 1952 in the files: +(Request for Comments) 1950 to 1952 in the files: .IP -ftp://ds.internic.net/rfc/rfc1950.txt (zlib format) +http://www.ietf.org/rfc/rfc1950.txt (concerning zlib format) .br -rfc1951.txt (deflate format) +http://www.ietf.org/rfc/rfc1951.txt (concerning deflate format) .br -rfc1952.txt (gzip format) +http://www.ietf.org/rfc/rfc1952.txt (concerning gzip format) .LP These documents are also available in other formats from: .IP ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html +.LP +Mark Nelson (markn@ieee.org) wrote an article about +.I zlib +for the Jan. 1997 issue of Dr. Dobb's Journal; +a copy of the article is available at: +.IP +http://dogma.net/markn/articles/zlibtool/zlibtool.htm +.SH "REPORTING PROBLEMS" +Before reporting a problem, +please check the +.I zlib +web site to verify that you have the latest version of +.IR zlib ; +otherwise, +obtain the latest version and see if the problem still exists. +Please read the +.I zlib +FAQ at: +.IP +http://www.gzip.org/zlib/zlib_faq.html +.LP +before asking for help. +Send questions and/or comments to zlib@gzip.org, +or (for the Windows DLL version) to Gilles Vollant (info@winimage.com). .SH AUTHORS -Version 1.1.4 -Copyright (C) 1995-2002 Jean-loup Gailly (jloup@gzip.org) +Version 1.2.1 +Copyright (C) 1995-2003 Jean-loup Gailly (jloup@gzip.org) and Mark Adler (madler@alumni.caltech.edu). .LP This software is provided "as-is," diff --git a/zlib/zlib.dsp b/zlib/zlib.dsp deleted file mode 100644 index b46afad005c..00000000000 --- a/zlib/zlib.dsp +++ /dev/null @@ -1,185 +0,0 @@ -# Microsoft Developer Studio Project File - Name="zlib" - Package Owner=<4> -# Microsoft Developer Studio Generated Build File, Format Version 6.00 -# ** DO NOT EDIT ** - -# TARGTYPE "Win32 (x86) Static Library" 0x0104 - -CFG=zlib - Win32 Debug -!MESSAGE This is not a valid makefile. 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In no event will the authors be held liable for any damages @@ -24,12 +24,12 @@ The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt + Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). */ -#ifndef _ZLIB_H -#define _ZLIB_H +#ifndef ZLIB_H +#define ZLIB_H #include "zconf.h" @@ -37,9 +37,10 @@ extern "C" { #endif -#define ZLIB_VERSION "1.1.4" +#define ZLIB_VERSION "1.2.1" +#define ZLIB_VERNUM 0x1210 -/* +/* The 'zlib' compression library provides in-memory compression and decompression functions, including integrity checks of the uncompressed data. This version of the library supports only one compression method @@ -52,8 +53,23 @@ extern "C" { application must provide more input and/or consume the output (providing more output space) before each call. + The compressed data format used by the in-memory functions is the zlib + format, which is a zlib wrapper documented in RFC 1950, wrapped around a + deflate stream, which is itself documented in RFC 1951. + The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. + with an interface similar to that of stdio using the functions that start + with "gz". The gzip format is different from the zlib format. gzip is a + gzip wrapper, documented in RFC 1952, wrapped around a deflate stream. + + The zlib format was designed to be compact and fast for use in memory + and on communications channels. The gzip format was designed for single- + file compression on file systems, has a larger header than zlib to maintain + directory information, and uses a different, slower check method than zlib. + + This library does not provide any functions to write gzip files in memory. + However such functions could be easily written using zlib's deflate function, + the documentation in the gzip RFC, and the examples in gzio.c. The library does not install any signal handler. The decoder checks the consistency of the compressed data, so the library should never @@ -127,7 +143,8 @@ typedef z_stream FAR *z_streamp; #define Z_SYNC_FLUSH 2 #define Z_FULL_FLUSH 3 #define Z_FINISH 4 -/* Allowed flush values; see deflate() below for details */ +#define Z_BLOCK 5 +/* Allowed flush values; see deflate() and inflate() below for details */ #define Z_OK 0 #define Z_STREAM_END 1 @@ -150,13 +167,14 @@ typedef z_stream FAR *z_streamp; #define Z_FILTERED 1 #define Z_HUFFMAN_ONLY 2 +#define Z_RLE 3 #define Z_DEFAULT_STRATEGY 0 /* compression strategy; see deflateInit2() below for details */ #define Z_BINARY 0 #define Z_ASCII 1 #define Z_UNKNOWN 2 -/* Possible values of the data_type field */ +/* Possible values of the data_type field (though see inflate()) */ #define Z_DEFLATED 8 /* The deflate compression method (the only one supported in this version) */ @@ -175,7 +193,7 @@ ZEXTERN const char * ZEXPORT zlibVersion OF((void)); This check is automatically made by deflateInit and inflateInit. */ -/* +/* ZEXTERN int ZEXPORT deflateInit OF((z_streamp strm, int level)); Initializes the internal stream state for compression. The fields @@ -244,7 +262,9 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); If deflate returns with avail_out == 0, this function must be called again with the same value of the flush parameter and more output space (updated avail_out), until the flush is complete (deflate returns with non-zero - avail_out). + avail_out). In the case of a Z_FULL_FLUSH or Z_SYNC_FLUSH, make sure that + avail_out is greater than six to avoid repeated flush markers due to + avail_out == 0 on return. If the parameter flush is set to Z_FINISH, pending input is processed, pending output is flushed and deflate returns with Z_STREAM_END if there @@ -253,10 +273,10 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); more input data, until it returns with Z_STREAM_END or an error. After deflate has returned Z_STREAM_END, the only possible operations on the stream are deflateReset or deflateEnd. - + Z_FINISH can be used immediately after deflateInit if all the compression is to be done in a single step. In this case, avail_out must be at least - 0.1% larger than avail_in plus 12 bytes. If deflate does not return + the value returned by deflateBound (see below). If deflate does not return Z_STREAM_END, then it must be called again as described above. deflate() sets strm->adler to the adler32 checksum of all input read @@ -272,7 +292,9 @@ ZEXTERN int ZEXPORT deflate OF((z_streamp strm, int flush)); consumed and all output has been produced (only when flush is set to Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). + (for example avail_in or avail_out was zero). Note that Z_BUF_ERROR is not + fatal, and deflate() can be called again with more input and more output + space to continue compressing. */ @@ -290,7 +312,7 @@ ZEXTERN int ZEXPORT deflateEnd OF((z_streamp strm)); */ -/* +/* ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); Initializes the internal stream state for decompression. The fields @@ -314,9 +336,9 @@ ZEXTERN int ZEXPORT inflateInit OF((z_streamp strm)); ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); /* inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. + buffer becomes empty or the output buffer becomes full. It may introduce + some output latency (reading input without producing any output) except when + forced to flush. The detailed semantics are as follows. inflate performs one or both of the following actions: @@ -340,11 +362,26 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); must be called again after making room in the output buffer because there might be more output pending. - If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much - output as possible to the output buffer. The flushing behavior of inflate is - not specified for values of the flush parameter other than Z_SYNC_FLUSH - and Z_FINISH, but the current implementation actually flushes as much output - as possible anyway. + The flush parameter of inflate() can be Z_NO_FLUSH, Z_SYNC_FLUSH, + Z_FINISH, or Z_BLOCK. Z_SYNC_FLUSH requests that inflate() flush as much + output as possible to the output buffer. Z_BLOCK requests that inflate() stop + if and when it get to the next deflate block boundary. When decoding the zlib + or gzip format, this will cause inflate() to return immediately after the + header and before the first block. When doing a raw inflate, inflate() will + go ahead and process the first block, and will return when it gets to the end + of that block, or when it runs out of data. + + The Z_BLOCK option assists in appending to or combining deflate streams. + Also to assist in this, on return inflate() will set strm->data_type to the + number of unused bits in the last byte taken from strm->next_in, plus 64 + if inflate() is currently decoding the last block in the deflate stream, + plus 128 if inflate() returned immediately after decoding an end-of-block + code or decoding the complete header up to just before the first byte of the + deflate stream. The end-of-block will not be indicated until all of the + uncompressed data from that block has been written to strm->next_out. The + number of unused bits may in general be greater than seven, except when + bit 7 of data_type is set, in which case the number of unused bits will be + less than eight. inflate() should normally be called until it returns Z_STREAM_END or an error. However if all decompression is to be performed in a single step @@ -354,29 +391,44 @@ ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush)); uncompressed data. (The size of the uncompressed data may have been saved by the compressor for this purpose.) The next operation on this stream must be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster routine + is never required, but can be used to inform inflate that a faster approach may be used for the single inflate() call. - If a preset dictionary is needed at this point (see inflateSetDictionary - below), inflate sets strm-adler to the adler32 checksum of the - dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise - it sets strm->adler to the adler32 checksum of all output produced - so far (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or - an error code as described below. At the end of the stream, inflate() - checks that its computed adler32 checksum is equal to that saved by the - compressor and returns Z_STREAM_END only if the checksum is correct. + In this implementation, inflate() always flushes as much output as + possible to the output buffer, and always uses the faster approach on the + first call. So the only effect of the flush parameter in this implementation + is on the return value of inflate(), as noted below, or when it returns early + because Z_BLOCK is used. + + If a preset dictionary is needed after this call (see inflateSetDictionary + below), inflate sets strm-adler to the adler32 checksum of the dictionary + chosen by the compressor and returns Z_NEED_DICT; otherwise it sets + strm->adler to the adler32 checksum of all output produced so far (that is, + total_out bytes) and returns Z_OK, Z_STREAM_END or an error code as described + below. At the end of the stream, inflate() checks that its computed adler32 + checksum is equal to that saved by the compressor and returns Z_STREAM_END + only if the checksum is correct. + + inflate() will decompress and check either zlib-wrapped or gzip-wrapped + deflate data. The header type is detected automatically. Any information + contained in the gzip header is not retained, so applications that need that + information should instead use raw inflate, see inflateInit2() below, or + inflateBack() and perform their own processing of the gzip header and + trailer. inflate() returns Z_OK if some progress has been made (more input processed or more output produced), Z_STREAM_END if the end of the compressed data has been reached and all uncompressed output has been produced, Z_NEED_DICT if a preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent - (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if no progress is possible or if there was not - enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR - case, the application may then call inflateSync to look for a good - compression block. + corrupted (input stream not conforming to the zlib format or incorrect check + value), Z_STREAM_ERROR if the stream structure was inconsistent (for example + if next_in or next_out was NULL), Z_MEM_ERROR if there was not enough memory, + Z_BUF_ERROR if no progress is possible or if there was not enough room in the + output buffer when Z_FINISH is used. Note that Z_BUF_ERROR is not fatal, and + inflate() can be called again with more input and more output space to + continue decompressing. If Z_DATA_ERROR is returned, the application may then + call inflateSync() to look for a good compression block if a partial recovery + of the data is desired. */ @@ -397,7 +449,7 @@ ZEXTERN int ZEXPORT inflateEnd OF((z_streamp strm)); The following functions are needed only in some special applications. */ -/* +/* ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, int level, int method, @@ -413,11 +465,21 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, this version of the library. The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this + (the size of the history buffer). It should be in the range 8..15 for this version of the library. Larger values of this parameter result in better compression at the expense of memory usage. The default value is 15 if deflateInit is used instead. + windowBits can also be -8..-15 for raw deflate. In this case, -windowBits + determines the window size. deflate() will then generate raw deflate data + with no zlib header or trailer, and will not compute an adler32 check value. + + windowBits can also be greater than 15 for optional gzip encoding. Add + 16 to windowBits to write a simple gzip header and trailer around the + compressed data instead of a zlib wrapper. The gzip header will have no + file name, no extra data, no comment, no modification time (set to zero), + no header crc, and the operating system will be set to 255 (unknown). + The memLevel parameter specifies how much memory should be allocated for the internal compression state. memLevel=1 uses minimum memory but is slow and reduces compression ratio; memLevel=9 uses maximum memory @@ -426,21 +488,23 @@ ZEXTERN int ZEXPORT deflateInit2 OF((z_streamp strm, The strategy parameter is used to tune the compression algorithm. Use the value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to compress them better. The effect of Z_FILTERED is to force more - Huffman coding and less string matching; it is somewhat intermediate - between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately. + filter (or predictor), Z_HUFFMAN_ONLY to force Huffman encoding only (no + string match), or Z_RLE to limit match distances to one (run-length + encoding). Filtered data consists mostly of small values with a somewhat + random distribution. In this case, the compression algorithm is tuned to + compress them better. The effect of Z_FILTERED is to force more Huffman + coding and less string matching; it is somewhat intermediate between + Z_DEFAULT and Z_HUFFMAN_ONLY. Z_RLE is designed to be almost as fast as + Z_HUFFMAN_ONLY, but give better compression for PNG image data. The strategy + parameter only affects the compression ratio but not the correctness of the + compressed output even if it is not set appropriately. deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid method). msg is set to null if there is no error message. deflateInit2 does not perform any compression: this will be done by deflate(). */ - + ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, const Bytef *dictionary, uInt dictLength)); @@ -464,11 +528,12 @@ ZEXTERN int ZEXPORT deflateSetDictionary OF((z_streamp strm, deflate or deflate2. Thus the strings most likely to be useful should be put at the end of the dictionary, not at the front. - Upon return of this function, strm->adler is set to the Adler32 value + Upon return of this function, strm->adler is set to the adler32 value of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value + which dictionary has been used by the compressor. (The adler32 value applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) + actually used by the compressor.) If a raw deflate was requested, then the + adler32 value is not computed and strm->adler is not set. deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a parameter is invalid (such as NULL dictionary) or the stream state is @@ -507,8 +572,8 @@ ZEXTERN int ZEXPORT deflateReset OF((z_streamp strm)); */ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, - int level, - int strategy)); + int level, + int strategy)); /* Dynamically update the compression level and compression strategy. The interpretation of level and strategy is as in deflateInit2. This can be @@ -527,7 +592,32 @@ ZEXTERN int ZEXPORT deflateParams OF((z_streamp strm, if strm->avail_out was zero. */ -/* +ZEXTERN uLong ZEXPORT deflateBound OF((z_streamp strm, + uLong sourceLen)); +/* + deflateBound() returns an upper bound on the compressed size after + deflation of sourceLen bytes. It must be called after deflateInit() + or deflateInit2(). This would be used to allocate an output buffer + for deflation in a single pass, and so would be called before deflate(). +*/ + +ZEXTERN int ZEXPORT deflatePrime OF((z_streamp strm, + int bits, + int value)); +/* + deflatePrime() inserts bits in the deflate output stream. The intent + is that this function is used to start off the deflate output with the + bits leftover from a previous deflate stream when appending to it. As such, + this function can only be used for raw deflate, and must be used before the + first deflate() call after a deflateInit2() or deflateReset(). bits must be + less than or equal to 16, and that many of the least significant bits of + value will be inserted in the output. + + deflatePrime returns Z_OK if success, or Z_STREAM_ERROR if the source + stream state was inconsistent. +*/ + +/* ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, int windowBits)); @@ -538,11 +628,30 @@ ZEXTERN int ZEXPORT inflateInit2 OF((z_streamp strm, The windowBits parameter is the base two logarithm of the maximum window size (the size of the history buffer). It should be in the range 8..15 for this version of the library. The default value is 15 if inflateInit is used - instead. If a compressed stream with a larger window size is given as - input, inflate() will return with the error code Z_DATA_ERROR instead of - trying to allocate a larger window. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough + instead. windowBits must be greater than or equal to the windowBits value + provided to deflateInit2() while compressing, or it must be equal to 15 if + deflateInit2() was not used. If a compressed stream with a larger window + size is given as input, inflate() will return with the error code + Z_DATA_ERROR instead of trying to allocate a larger window. + + windowBits can also be -8..-15 for raw inflate. In this case, -windowBits + determines the window size. inflate() will then process raw deflate data, + not looking for a zlib or gzip header, not generating a check value, and not + looking for any check values for comparison at the end of the stream. This + is for use with other formats that use the deflate compressed data format + such as zip. Those formats provide their own check values. If a custom + format is developed using the raw deflate format for compressed data, it is + recommended that a check value such as an adler32 or a crc32 be applied to + the uncompressed data as is done in the zlib, gzip, and zip formats. For + most applications, the zlib format should be used as is. Note that comments + above on the use in deflateInit2() applies to the magnitude of windowBits. + + windowBits can also be greater than 15 for optional gzip decoding. Add + 32 to windowBits to enable zlib and gzip decoding with automatic header + detection, or add 16 to decode only the gzip format (the zlib format will + return a Z_DATA_ERROR). + + inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative memLevel). msg is set to null if there is no error message. inflateInit2 does not perform any decompression apart from reading the zlib header if @@ -557,20 +666,20 @@ ZEXTERN int ZEXPORT inflateSetDictionary OF((z_streamp strm, Initializes the decompression dictionary from the given uncompressed byte sequence. This function must be called immediately after a call of inflate if this call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of + can be determined from the adler32 value returned by this call of inflate. The compressor and decompressor must use exactly the same dictionary (see deflateSetDictionary). inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a parameter is invalid (such as NULL dictionary) or the stream state is inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect Adler32 value). inflateSetDictionary does not + expected one (incorrect adler32 value). inflateSetDictionary does not perform any decompression: this will be done by subsequent calls of inflate(). */ ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); -/* +/* Skips invalid compressed data until a full flush point (see above the description of deflate with Z_FULL_FLUSH) can be found, or until all available input is skipped. No output is provided. @@ -584,6 +693,22 @@ ZEXTERN int ZEXPORT inflateSync OF((z_streamp strm)); until success or end of the input data. */ +ZEXTERN int ZEXPORT inflateCopy OF((z_streamp dest, + z_streamp source)); +/* + Sets the destination stream as a complete copy of the source stream. + + This function can be useful when randomly accessing a large stream. The + first pass through the stream can periodically record the inflate state, + allowing restarting inflate at those points when randomly accessing the + stream. + + inflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not + enough memory, Z_STREAM_ERROR if the source stream state was inconsistent + (such as zalloc being NULL). msg is left unchanged in both source and + destination. +*/ + ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); /* This function is equivalent to inflateEnd followed by inflateInit, @@ -594,6 +719,149 @@ ZEXTERN int ZEXPORT inflateReset OF((z_streamp strm)); stream state was inconsistent (such as zalloc or state being NULL). */ +/* +ZEXTERN int ZEXPORT inflateBackInit OF((z_stream FAR *strm, int windowBits, + unsigned char FAR *window)); + + Initialize the internal stream state for decompression using inflateBack() + calls. The fields zalloc, zfree and opaque in strm must be initialized + before the call. If zalloc and zfree are Z_NULL, then the default library- + derived memory allocation routines are used. windowBits is the base two + logarithm of the window size, in the range 8..15. window is a caller + supplied buffer of that size. Except for special applications where it is + assured that deflate was used with small window sizes, windowBits must be 15 + and a 32K byte window must be supplied to be able to decompress general + deflate streams. + + See inflateBack() for the usage of these routines. + + inflateBackInit will return Z_OK on success, Z_STREAM_ERROR if any of + the paramaters are invalid, Z_MEM_ERROR if the internal state could not + be allocated, or Z_VERSION_ERROR if the version of the library does not + match the version of the header file. +*/ + +typedef unsigned (*in_func) OF((void FAR *, unsigned char FAR * FAR *)); +typedef int (*out_func) OF((void FAR *, unsigned char FAR *, unsigned)); + +ZEXTERN int ZEXPORT inflateBack OF((z_stream FAR *strm, + in_func in, void FAR *in_desc, + out_func out, void FAR *out_desc)); +/* + inflateBack() does a raw inflate with a single call using a call-back + interface for input and output. This is more efficient than inflate() for + file i/o applications in that it avoids copying between the output and the + sliding window by simply making the window itself the output buffer. This + function trusts the application to not change the output buffer passed by + the output function, at least until inflateBack() returns. + + inflateBackInit() must be called first to allocate the internal state + and to initialize the state with the user-provided window buffer. + inflateBack() may then be used multiple times to inflate a complete, raw + deflate stream with each call. inflateBackEnd() is then called to free + the allocated state. + + A raw deflate stream is one with no zlib or gzip header or trailer. + This routine would normally be used in a utility that reads zip or gzip + files and writes out uncompressed files. The utility would decode the + header and process the trailer on its own, hence this routine expects + only the raw deflate stream to decompress. This is different from the + normal behavior of inflate(), which expects either a zlib or gzip header and + trailer around the deflate stream. + + inflateBack() uses two subroutines supplied by the caller that are then + called by inflateBack() for input and output. inflateBack() calls those + routines until it reads a complete deflate stream and writes out all of the + uncompressed data, or until it encounters an error. The function's + parameters and return types are defined above in the in_func and out_func + typedefs. inflateBack() will call in(in_desc, &buf) which should return the + number of bytes of provided input, and a pointer to that input in buf. If + there is no input available, in() must return zero--buf is ignored in that + case--and inflateBack() will return a buffer error. inflateBack() will call + out(out_desc, buf, len) to write the uncompressed data buf[0..len-1]. out() + should return zero on success, or non-zero on failure. If out() returns + non-zero, inflateBack() will return with an error. Neither in() nor out() + are permitted to change the contents of the window provided to + inflateBackInit(), which is also the buffer that out() uses to write from. + The length written by out() will be at most the window size. Any non-zero + amount of input may be provided by in(). + + For convenience, inflateBack() can be provided input on the first call by + setting strm->next_in and strm->avail_in. If that input is exhausted, then + in() will be called. Therefore strm->next_in must be initialized before + calling inflateBack(). If strm->next_in is Z_NULL, then in() will be called + immediately for input. If strm->next_in is not Z_NULL, then strm->avail_in + must also be initialized, and then if strm->avail_in is not zero, input will + initially be taken from strm->next_in[0 .. strm->avail_in - 1]. + + The in_desc and out_desc parameters of inflateBack() is passed as the + first parameter of in() and out() respectively when they are called. These + descriptors can be optionally used to pass any information that the caller- + supplied in() and out() functions need to do their job. + + On return, inflateBack() will set strm->next_in and strm->avail_in to + pass back any unused input that was provided by the last in() call. The + return values of inflateBack() can be Z_STREAM_END on success, Z_BUF_ERROR + if in() or out() returned an error, Z_DATA_ERROR if there was a format + error in the deflate stream (in which case strm->msg is set to indicate the + nature of the error), or Z_STREAM_ERROR if the stream was not properly + initialized. In the case of Z_BUF_ERROR, an input or output error can be + distinguished using strm->next_in which will be Z_NULL only if in() returned + an error. If strm->next is not Z_NULL, then the Z_BUF_ERROR was due to + out() returning non-zero. (in() will always be called before out(), so + strm->next_in is assured to be defined if out() returns non-zero.) Note + that inflateBack() cannot return Z_OK. +*/ + +ZEXTERN int ZEXPORT inflateBackEnd OF((z_stream FAR *strm)); +/* + All memory allocated by inflateBackInit() is freed. + + inflateBackEnd() returns Z_OK on success, or Z_STREAM_ERROR if the stream + state was inconsistent. +*/ + +ZEXTERN uLong ZEXPORT zlibCompileFlags OF((void)); +/* Return flags indicating compile-time options. + + Type sizes, two bits each, 00 = 16 bits, 01 = 32, 10 = 64, 11 = other: + 1.0: size of uInt + 3.2: size of uLong + 5.4: size of voidpf (pointer) + 7.6: size of z_off_t + + Compiler, assembler, and debug options: + 8: DEBUG + 9: ASMV or ASMINF -- use ASM code + 10: ZLIB_WINAPI -- exported functions use the WINAPI calling convention + 11: 0 (reserved) + + One-time table building (smaller code, but not thread-safe if true): + 12: BUILDFIXED -- build static block decoding tables when needed + 13: DYNAMIC_CRC_TABLE -- build CRC calculation tables when needed + 14,15: 0 (reserved) + + Library content (indicates missing functionality): + 16: NO_GZCOMPRESS -- gz* functions cannot compress (to avoid linking + deflate code when not needed) + 17: NO_GZIP -- deflate can't write gzip streams, and inflate can't detect + and decode gzip streams (to avoid linking crc code) + 18-19: 0 (reserved) + + Operation variations (changes in library functionality): + 20: PKZIP_BUG_WORKAROUND -- slightly more permissive inflate + 21: FASTEST -- deflate algorithm with only one, lowest compression level + 22,23: 0 (reserved) + + The sprintf variant used by gzprintf (zero is best): + 24: 0 = vs*, 1 = s* -- 1 means limited to 20 arguments after the format + 25: 0 = *nprintf, 1 = *printf -- 1 means gzprintf() not secure! + 26: 0 = returns value, 1 = void -- 1 means inferred string length returned + + Remainder: + 27-31: 0 (reserved) + */ + /* utility functions */ @@ -610,8 +878,8 @@ ZEXTERN int ZEXPORT compress OF((Bytef *dest, uLongf *destLen, /* Compresses the source buffer into the destination buffer. sourceLen is the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the + size of the destination buffer, which must be at least the value returned + by compressBound(sourceLen). Upon exit, destLen is the actual size of the compressed buffer. This function can be used to compress a whole file at once if the input file is mmap'ed. @@ -627,14 +895,22 @@ ZEXTERN int ZEXPORT compress2 OF((Bytef *dest, uLongf *destLen, Compresses the source buffer into the destination buffer. The level parameter has the same meaning as in deflateInit. sourceLen is the byte length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. + destination buffer, which must be at least the value returned by + compressBound(sourceLen). Upon exit, destLen is the actual size of the + compressed buffer. compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if there was not enough room in the output buffer, Z_STREAM_ERROR if the level parameter is invalid. */ +ZEXTERN uLong ZEXPORT compressBound OF((uLong sourceLen)); +/* + compressBound() returns an upper bound on the compressed size after + compress() or compress2() on sourceLen bytes. It would be used before + a compress() or compress2() call to allocate the destination buffer. +*/ + ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen)); /* @@ -650,7 +926,7 @@ ZEXTERN int ZEXPORT uncompress OF((Bytef *dest, uLongf *destLen, uncompress returns Z_OK if success, Z_MEM_ERROR if there was not enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. + buffer, or Z_DATA_ERROR if the input data was corrupted or incomplete. */ @@ -661,8 +937,9 @@ ZEXTERN gzFile ZEXPORT gzopen OF((const char *path, const char *mode)); Opens a gzip (.gz) file for reading or writing. The mode parameter is as in fopen ("rb" or "wb") but can also include a compression level ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of deflateInit2 for more information about the strategy parameter.) + Huffman only compression as in "wb1h", or 'R' for run-length encoding + as in "wb1R". (See the description of deflateInit2 for more information + about the strategy parameter.) gzopen can be used to read a file which is not in gzip format; in this case gzread will directly read from the file without decompression. @@ -701,8 +978,8 @@ ZEXTERN int ZEXPORT gzread OF((gzFile file, voidp buf, unsigned len)); gzread returns the number of uncompressed bytes actually read (0 for end of file, -1 for error). */ -ZEXTERN int ZEXPORT gzwrite OF((gzFile file, - const voidp buf, unsigned len)); +ZEXTERN int ZEXPORT gzwrite OF((gzFile file, + voidpc buf, unsigned len)); /* Writes the given number of uncompressed bytes into the compressed file. gzwrite returns the number of uncompressed bytes actually written @@ -713,7 +990,13 @@ ZEXTERN int ZEXPORTVA gzprintf OF((gzFile file, const char *format, ...)); /* Converts, formats, and writes the args to the compressed file under control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). + uncompressed bytes actually written (0 in case of error). The number of + uncompressed bytes written is limited to 4095. The caller should assure that + this limit is not exceeded. If it is exceeded, then gzprintf() will return + return an error (0) with nothing written. In this case, there may also be a + buffer overflow with unpredictable consequences, which is possible only if + zlib was compiled with the insecure functions sprintf() or vsprintf() + because the secure snprintf() or vsnprintf() functions were not available. */ ZEXTERN int ZEXPORT gzputs OF((gzFile file, const char *s)); @@ -744,6 +1027,16 @@ ZEXTERN int ZEXPORT gzgetc OF((gzFile file)); or -1 in case of end of file or error. */ +ZEXTERN int ZEXPORT gzungetc OF((int c, gzFile file)); +/* + Push one character back onto the stream to be read again later. + Only one character of push-back is allowed. gzungetc() returns the + character pushed, or -1 on failure. gzungetc() will fail if a + character has been pushed but not read yet, or if c is -1. The pushed + character will be discarded if the stream is repositioned with gzseek() + or gzrewind(). +*/ + ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); /* Flushes all pending output into the compressed file. The parameter @@ -755,8 +1048,8 @@ ZEXTERN int ZEXPORT gzflush OF((gzFile file, int flush)); */ ZEXTERN z_off_t ZEXPORT gzseek OF((gzFile file, - z_off_t offset, int whence)); -/* + z_off_t offset, int whence)); +/* Sets the starting position for the next gzread or gzwrite on the given compressed file. The offset represents a number of bytes in the uncompressed data stream. The whence parameter is defined as in lseek(2); @@ -810,6 +1103,13 @@ ZEXTERN const char * ZEXPORT gzerror OF((gzFile file, int *errnum)); to get the exact error code. */ +ZEXTERN void ZEXPORT gzclearerr OF((gzFile file)); +/* + Clears the error and end-of-file flags for file. This is analogous to the + clearerr() function in stdio. This is useful for continuing to read a gzip + file that is being written concurrently. +*/ + /* checksum functions */ /* @@ -867,6 +1167,10 @@ ZEXTERN int ZEXPORT deflateInit2_ OF((z_streamp strm, int level, int method, int stream_size)); ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, const char *version, int stream_size)); +ZEXTERN int ZEXPORT inflateBackInit_ OF((z_stream FAR *strm, int windowBits, + unsigned char FAR *window, + const char *version, + int stream_size)); #define deflateInit(strm, level) \ deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) #define inflateInit(strm) \ @@ -876,9 +1180,12 @@ ZEXTERN int ZEXPORT inflateInit2_ OF((z_streamp strm, int windowBits, (strategy), ZLIB_VERSION, sizeof(z_stream)) #define inflateInit2(strm, windowBits) \ inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) +#define inflateBackInit(strm, windowBits, window) \ + inflateBackInit_((strm), (windowBits), (window), \ + ZLIB_VERSION, sizeof(z_stream)) -#if !defined(_Z_UTIL_H) && !defined(NO_DUMMY_DECL) +#if !defined(ZUTIL_H) && !defined(NO_DUMMY_DECL) struct internal_state {int dummy;}; /* hack for buggy compilers */ #endif @@ -890,4 +1197,4 @@ ZEXTERN const uLongf * ZEXPORT get_crc_table OF((void)); } #endif -#endif /* _ZLIB_H */ +#endif /* ZLIB_H */ diff --git a/zlib/zlib.html b/zlib/zlib.html deleted file mode 100644 index c3437038693..00000000000 --- a/zlib/zlib.html +++ /dev/null @@ -1,971 +0,0 @@ -<html> -<head> - <title> - zlib general purpose compression library version 1.1.4 - </title> -</head> -<body bgcolor="White" text="Black" vlink="Red" alink="Navy" link="Red"> -<!-- background="zlibbg.gif" --> - -<h1> zlib 1.1.4 Manual </h1> -<hr> -<a name="Contents"><h2>Contents</h2> -<ol type="I"> -<li> <a href="#Prologue">Prologue</a> -<li> <a href="#Introduction">Introduction</a> -<li> <a href="#Utility functions">Utility functions</a> -<li> <a href="#Basic functions">Basic functions</a> -<li> <a href="#Advanced functions">Advanced functions</a> -<li> <a href="#Constants">Constants</a> -<li> <a href="#struct z_stream_s">struct z_stream_s</a> -<li> <a href="#Checksum functions">Checksum functions</a> -<li> <a href="#Misc">Misc</a> -</ol> -<hr> -<a name="Prologue"><h2> Prologue </h2> - 'zlib' general purpose compression library version 1.1.4, March 11th, 2002 - <p> - Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler - <p> - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - <p> - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - <ol> - <li> The origin of this software must not be misrepresented ; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - <li> Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - <li> This notice may not be removed or altered from any source distribution. - </ol> - - <dl> - <dt>Jean-loup Gailly - <dd><a href="mailto:jloup@gzip.org">jloup@gzip.org</a> - <dt>Mark Adler - <dd><a href="mailto:madler@alumni.caltech.edu">madler@alumni.caltech.edu</a> - </dl> - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files - <a href="ftp://ds.internic.net/rfc/rfc1950.txt"> - ftp://ds.internic.net/rfc/rfc1950.txt </a> - (zlib format), - <a href="ftp://ds.internic.net/rfc/rfc1951.txt"> - rfc1951.txt </a> - (<a href="#deflate">deflate</a> format) and - <a href="ftp://ds.internic.net/rfc/rfc1952.txt"> - rfc1952.txt </a> - (gzip format). - <p> - This manual is converted from zlib.h by - <a href="mailto:piaip@csie.ntu.edu.tw"> piaip </a> - <p> - Visit <a href="http://ftp.cdrom.com/pub/infozip/zlib/"> - http://ftp.cdrom.com/pub/infozip/zlib/</a> - for the official zlib web page. - <p> - -<hr> -<a name="Introduction"><h2> Introduction </h2> - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. - <p> - - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. - <p> - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. - <p> - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. - <p> - -<hr> -<a name="Utility functions"><h2> Utility functions </h2> - The following utility functions are implemented on top of the - <a href="#Basic functions">basic stream-oriented functions</a>. - To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -<h3> Function list </h3> -<ul> -<li> int <a href="#compress">compress</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -<li> int <a href="#compress2">compress2</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level); -<li> int <a href="#uncompress">uncompress</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen); -<li> typedef voidp gzFile; -<li> gzFile <a href="#gzopen">gzopen</a> (const char *path, const char *mode); -<li> gzFile <a href="#gzdopen">gzdopen</a> (int fd, const char *mode); -<li> int <a href="#gzsetparams">gzsetparams</a> (gzFile file, int level, int strategy); -<li> int <a href="#gzread">gzread</a> (gzFile file, voidp buf, unsigned len); -<li> int <a href="#gzwrite">gzwrite</a> (gzFile file, const voidp buf, unsigned len); -<li> int VA <a href="#gzprintf">gzprintf</a> (gzFile file, const char *format, ...); -<li> int <a href="#gzputs">gzputs</a> (gzFile file, const char *s); -<li> char * <a href="#gzgets">gzgets</a> (gzFile file, char *buf, int len); -<li> int <a href="#gzputc">gzputc</a> (gzFile file, int c); -<li> int <a href="#gzgetc">gzgetc</a> (gzFile file); -<li> int <a href="#gzflush">gzflush</a> (gzFile file, int flush); -<li> z_off_t <a href="#gzseek">gzseek</a> (gzFile file, z_off_t offset, int whence); -<li> z_off_t <a href="#gztell">gztell</a> (gzFile file); -<li> int <a href="#gzrewind">gzrewind</a> (gzFile file); -<li> int <a href="#gzeof">gzeof</a> (gzFile file); -<li> int <a href="#gzclose">gzclose</a> (gzFile file); -<li> const char * <a href="#gzerror">gzerror</a> (gzFile file, int *errnum); -</ul> -<h3> Function description </h3> -<dl> -<font color="Blue"><dt> int <a name="compress">compress</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen);</font> -<dd> - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the - compressed buffer.<p> - This function can be used to <a href="#compress">compress</a> a whole file at once if the - input file is mmap'ed.<p> - <a href="#compress">compress</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not - enough memory, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> if there was not enough room in the output - buffer.<p> - -<font color="Blue"><dt> int <a name="compress2">compress2</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen, int level);</font> -<dd> - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in <a href="#deflateInit">deflateInit</a>. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - <p> - - <a href="#compress2">compress2</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not enough - memory, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> if there was not enough room in the output buffer, - <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the level parameter is invalid. - <p> - -<font color="Blue"><dt> int <a name="uncompress">uncompress</a> (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen);</font> -<dd> - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. <p> - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - <p> - - <a href="#uncompress">uncompress</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not - enough memory, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> if there was not enough room in the output - buffer, or <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> if the input data was corrupted. - <p> - -<dt> typedef voidp gzFile; -<dd> <p> - -<font color="Blue"><dt> gzFile <a name="gzopen">gzopen</a> (const char *path, const char *mode);</font> -<dd> - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of <a href="#deflateInit2">deflateInit2</a> for more information about the strategy parameter.) - <p> - - <a href="#gzopen">gzopen</a> can be used to read a file which is not in gzip format ; in this - case <a href="#gzread">gzread</a> will directly read from the file without decompression. - <p> - - <a href="#gzopen">gzopen</a> returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression <a href="#state">state</a> ; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a>). - <p> - -<font color="Blue"><dt> gzFile <a name="gzdopen">gzdopen</a> (int fd, const char *mode);</font> -<dd> - <a href="#gzdopen">gzdopen</a>() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in <a href="#gzopen">gzopen</a>. - <p> - The next call of <a href="#gzclose">gzclose</a> on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use <a href="#gzdopen">gzdopen</a>(dup(fd), mode). - <p> - <a href="#gzdopen">gzdopen</a> returns NULL if there was insufficient memory to allocate - the (de)compression <a href="#state">state</a>. - <p> - -<font color="Blue"><dt> int <a name="gzsetparams">gzsetparams</a> (gzFile file, int level, int strategy);</font> -<dd> - Dynamically update the compression level or strategy. See the description - of <a href="#deflateInit2">deflateInit2</a> for the meaning of these parameters. - <p> - <a href="#gzsetparams">gzsetparams</a> returns <a href="#Z_OK">Z_OK</a> if success, or <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the file was not - opened for writing. - <p> - -<font color="Blue"><dt> int <a name="gzread">gzread</a> (gzFile file, voidp buf, unsigned len);</font> -<dd> - Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, <a href="#gzread">gzread</a> copies the given number - of bytes into the buffer. - <p> - <a href="#gzread">gzread</a> returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). - <p> - -<font color="Blue"><dt> int <a name="gzwrite">gzwrite</a> (gzFile file, const voidp buf, unsigned len);</font> -<dd> - Writes the given number of uncompressed bytes into the compressed file. - <a href="#gzwrite">gzwrite</a> returns the number of uncompressed bytes actually written - (0 in case of error). - <p> - -<font color="Blue"><dt> int VA <a name="gzprintf">gzprintf</a> (gzFile file, const char *format, ...);</font> -<dd> - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. <a href="#gzprintf">gzprintf</a> returns the number of - uncompressed bytes actually written (0 in case of error). - <p> - -<font color="Blue"><dt> int <a name="gzputs">gzputs</a> (gzFile file, const char *s);</font> -<dd> - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - <p> - <a href="#gzputs">gzputs</a> returns the number of characters written, or -1 in case of error. - <p> - -<font color="Blue"><dt> char * <a name="gzgets">gzgets</a> (gzFile file, char *buf, int len);</font> -<dd> - Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. - <p> - <a href="#gzgets">gzgets</a> returns buf, or <a href="#Z_NULL">Z_NULL</a> in case of error. - <p> - -<font color="Blue"><dt> int <a name="gzputc">gzputc</a> (gzFile file, int c);</font> -<dd> - Writes c, converted to an unsigned char, into the compressed file. - <a href="#gzputc">gzputc</a> returns the value that was written, or -1 in case of error. - <p> - -<font color="Blue"><dt> int <a name="gzgetc">gzgetc</a> (gzFile file);</font> -<dd> - Reads one byte from the compressed file. <a href="#gzgetc">gzgetc</a> returns this byte - or -1 in case of end of file or error. - <p> - -<font color="Blue"><dt> int <a name="gzflush">gzflush</a> (gzFile file, int flush);</font> -<dd> - Flushes all pending output into the compressed file. The parameter - flush is as in the <a href="#deflate">deflate</a>() function. The return value is the zlib - error number (see function <a href="#gzerror">gzerror</a> below). <a href="#gzflush">gzflush</a> returns <a href="#Z_OK">Z_OK</a> if - the flush parameter is <a href="#Z_FINISH">Z_FINISH</a> and all output could be flushed. - <p> - <a href="#gzflush">gzflush</a> should be called only when strictly necessary because it can - degrade compression. - <p> - -<font color="Blue"><dt> z_off_t <a name="gzseek">gzseek</a> (gzFile file, z_off_t offset, int whence);</font> -<dd> - Sets the starting position for the next <a href="#gzread">gzread</a> or <a href="#gzwrite">gzwrite</a> on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - <p> - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported ; <a href="#gzseek">gzseek</a> then compresses a sequence of zeroes up to the new - starting position. - <p> - <a href="#gzseek">gzseek</a> returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. - <p> - -<font color="Blue"><dt> int <a name="gzrewind">gzrewind</a> (gzFile file);</font> -<dd> - Rewinds the given file. This function is supported only for reading. - <p> - <a href="#gzrewind">gzrewind</a>(file) is equivalent to (int)<a href="#gzseek">gzseek</a>(file, 0L, SEEK_SET) - <p> - -<font color="Blue"><dt> z_off_t <a name="gztell">gztell</a> (gzFile file);</font> -<dd> - Returns the starting position for the next <a href="#gzread">gzread</a> or <a href="#gzwrite">gzwrite</a> on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. - <p> - - <a href="#gztell">gztell</a>(file) is equivalent to <a href="#gzseek">gzseek</a>(file, 0L, SEEK_CUR) - <p> - -<font color="Blue"><dt> int <a name="gzeof">gzeof</a> (gzFile file);</font> -<dd> - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. - <p> - -<font color="Blue"><dt> int <a name="gzclose">gzclose</a> (gzFile file);</font> -<dd> - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression <a href="#state">state</a>. The return value is the zlib - error number (see function <a href="#gzerror">gzerror</a> below). - <p> - -<font color="Blue"><dt> const char * <a name="gzerror">gzerror</a> (gzFile file, int *errnum);</font> -<dd> - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to <a href="#Z_ERRNO">Z_ERRNO</a> and the application may consult errno - to get the exact error code. - <p> -</dl> -<hr> -<a name="Basic functions"><h2> Basic functions </h2> -<h3> Function list </h3> -<ul> -<li> const char * <a href="#zlibVersion">zlibVersion</a> (void); -<li> int <a href="#deflateInit">deflateInit</a> (<a href="#z_streamp">z_streamp</a> strm, int level); -<li> int <a href="#deflate">deflate</a> (<a href="#z_streamp">z_streamp</a> strm, int flush); -<li> int <a href="#deflateEnd">deflateEnd</a> (<a href="#z_streamp">z_streamp</a> strm); -<li> int <a href="#inflateInit">inflateInit</a> (<a href="#z_streamp">z_streamp</a> strm); -<li> int <a href="#inflate">inflate</a> (<a href="#z_streamp">z_streamp</a> strm, int flush); -<li> int <a href="#inflateEnd">inflateEnd</a> (<a href="#z_streamp">z_streamp</a> strm); -</ul> - -<h3> Function description </h3> -<dl> -<font color="Blue"><dt> const char * <a name="zlibVersion">zlibVersion</a> (void);</font> -<dd> The application can compare <a href="#zlibVersion">zlibVersion</a> and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by <a href="#deflateInit">deflateInit</a> and <a href="#inflateInit">inflateInit</a>. - <p> - -<font color="Blue"><dt> int <a name="deflateInit">deflateInit</a> (<a href="#z_streamp">z_streamp</a> strm, int level);</font> -<dd> - Initializes the internal stream <a href="#state">state</a> for compression. The fields - <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a> and <a href="#opaque">opaque</a> must be initialized before by the caller. - If <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a> are set to <a href="#Z_NULL">Z_NULL</a>, <a href="#deflateInit">deflateInit</a> updates them to - use default allocation functions. - <p> - - The compression level must be <a href="#Z_DEFAULT_COMPRESSION">Z_DEFAULT_COMPRESSION</a>, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). - <p> - - <a href="#Z_DEFAULT_COMPRESSION">Z_DEFAULT_COMPRESSION</a> requests a default compromise between speed and - compression (currently equivalent to level 6). - <p> - - <a href="#deflateInit">deflateInit</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not - enough memory, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if level is not a valid compression level, - <a href="#Z_VERSION_ERROR">Z_VERSION_ERROR</a> if the zlib library version (<a href="#zlib_version">zlib_version</a>) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - <a href="#msg">msg</a> is set to null if there is no error message. <a href="#deflateInit">deflateInit</a> does not - perform any compression: this will be done by <a href="#deflate">deflate</a>(). - <p> - -<font color="Blue"><dt> int <a name="deflate">deflate</a> (<a href="#z_streamp">z_streamp</a> strm, int flush);</font> -<dd> - <a href="#deflate">deflate</a> compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush.<p> - - The detailed semantics are as follows. <a href="#deflate">deflate</a> performs one or both of the - following actions: - - <ul> - <li> Compress more input starting at <a href="#next_in">next_in</a> and update <a href="#next_in">next_in</a> and <a href="#avail_in">avail_in</a> - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), <a href="#next_in">next_in</a> and <a href="#avail_in">avail_in</a> are updated and - processing will resume at this point for the next call of <a href="#deflate">deflate</a>(). - - <li> - Provide more output starting at <a href="#next_out">next_out</a> and update <a href="#next_out">next_out</a> and <a href="#avail_out">avail_out</a> - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. - </ul> <p> - - Before the call of <a href="#deflate">deflate</a>(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating <a href="#avail_in">avail_in</a> or <a href="#avail_out">avail_out</a> accordingly ; <a href="#avail_out">avail_out</a> - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (<a href="#avail_out">avail_out</a> == 0), or after each call of <a href="#deflate">deflate</a>(). If <a href="#deflate">deflate</a> returns <a href="#Z_OK">Z_OK</a> - and with zero <a href="#avail_out">avail_out</a>, it must be called again after making room in the - output buffer because there might be more output pending. - <p> - - If the parameter flush is set to <a href="#Z_SYNC_FLUSH">Z_SYNC_FLUSH</a>, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - <a href="#avail_in">avail_in</a> is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. - <p> - - If flush is set to <a href="#Z_FULL_FLUSH">Z_FULL_FLUSH</a>, all output is flushed as with - <a href="#Z_SYNC_FLUSH">Z_SYNC_FLUSH</a>, and the compression <a href="#state">state</a> is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using <a href="#Z_FULL_FLUSH">Z_FULL_FLUSH</a> too often can seriously degrade - the compression. - <p> - - If <a href="#deflate">deflate</a> returns with <a href="#avail_out">avail_out</a> == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - <a href="#avail_out">avail_out</a>), until the flush is complete (<a href="#deflate">deflate</a> returns with non-zero - <a href="#avail_out">avail_out</a>). - <p> - - If the parameter flush is set to <a href="#Z_FINISH">Z_FINISH</a>, pending input is processed, - pending output is flushed and <a href="#deflate">deflate</a> returns with <a href="#Z_STREAM_END">Z_STREAM_END</a> if there - was enough output space ; if <a href="#deflate">deflate</a> returns with <a href="#Z_OK">Z_OK</a>, this function must be - called again with <a href="#Z_FINISH">Z_FINISH</a> and more output space (updated <a href="#avail_out">avail_out</a>) but no - more input data, until it returns with <a href="#Z_STREAM_END">Z_STREAM_END</a> or an error. After - <a href="#deflate">deflate</a> has returned <a href="#Z_STREAM_END">Z_STREAM_END</a>, the only possible operations on the - stream are <a href="#deflateReset">deflateReset</a> or <a href="#deflateEnd">deflateEnd</a>. - <p> - - <a href="#Z_FINISH">Z_FINISH</a> can be used immediately after <a href="#deflateInit">deflateInit</a> if all the compression - is to be done in a single step. In this case, <a href="#avail_out">avail_out</a> must be at least - 0.1% larger than <a href="#avail_in">avail_in</a> plus 12 bytes. If <a href="#deflate">deflate</a> does not return - <a href="#Z_STREAM_END">Z_STREAM_END</a>, then it must be called again as described above. - <p> - - <a href="#deflate">deflate</a>() sets strm-> <a href="#adler">adler</a> to the <a href="#adler32">adler32</a> checksum of all input read - so far (that is, <a href="#total_in">total_in</a> bytes). - <p> - - <a href="#deflate">deflate</a>() may update <a href="#data_type">data_type</a> if it can make a good guess about - the input data type (<a href="#Z_ASCII">Z_ASCII</a> or <a href="#Z_BINARY">Z_BINARY</a>). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. - <p> - - <a href="#deflate">deflate</a>() returns <a href="#Z_OK">Z_OK</a> if some progress has been made (more input - processed or more output produced), <a href="#Z_STREAM_END">Z_STREAM_END</a> if all input has been - consumed and all output has been produced (only when flush is set to - <a href="#Z_FINISH">Z_FINISH</a>), <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the stream <a href="#state">state</a> was inconsistent (for example - if <a href="#next_in">next_in</a> or <a href="#next_out">next_out</a> was NULL), <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> if no progress is possible - (for example <a href="#avail_in">avail_in</a> or <a href="#avail_out">avail_out</a> was zero). - <p> - -<font color="Blue"><dt> int <a name="deflateEnd">deflateEnd</a> (<a href="#z_streamp">z_streamp</a> strm);</font> -<dd> - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - <p> - - <a href="#deflateEnd">deflateEnd</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the - stream <a href="#state">state</a> was inconsistent, <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> if the stream was freed - prematurely (some input or output was discarded). In the error case, - <a href="#msg">msg</a> may be set but then points to a static string (which must not be - deallocated). - <p> - -<font color="Blue"><dt> int <a name="inflateInit">inflateInit</a> (<a href="#z_streamp">z_streamp</a> strm);</font> -<dd> - Initializes the internal stream <a href="#state">state</a> for decompression. The fields - <a href="#next_in">next_in</a>, <a href="#avail_in">avail_in</a>, <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a> and <a href="#opaque">opaque</a> must be initialized before by - the caller. If <a href="#next_in">next_in</a> is not <a href="#Z_NULL">Z_NULL</a> and <a href="#avail_in">avail_in</a> is large enough (the exact - value depends on the compression method), <a href="#inflateInit">inflateInit</a> determines the - compression method from the zlib header and allocates all data structures - accordingly ; otherwise the allocation will be deferred to the first call of - <a href="#inflate">inflate</a>. If <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a> are set to <a href="#Z_NULL">Z_NULL</a>, <a href="#inflateInit">inflateInit</a> updates them to - use default allocation functions. - <p> - - <a href="#inflateInit">inflateInit</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not enough - memory, <a href="#Z_VERSION_ERROR">Z_VERSION_ERROR</a> if the zlib library version is incompatible with the - version assumed by the caller. <a href="#msg">msg</a> is set to null if there is no error - message. <a href="#inflateInit">inflateInit</a> does not perform any decompression apart from reading - the zlib header if present: this will be done by <a href="#inflate">inflate</a>(). (So <a href="#next_in">next_in</a> and - <a href="#avail_in">avail_in</a> may be modified, but <a href="#next_out">next_out</a> and <a href="#avail_out">avail_out</a> are unchanged.) - <p> - -<font color="Blue"><dt> int <a name="inflate">inflate</a> (<a href="#z_streamp">z_streamp</a> strm, int flush);</font> -<dd> - <a href="#inflate">inflate</a> decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. - <p> - - The detailed semantics are as follows. <a href="#inflate">inflate</a> performs one or both of the - following actions: - - <ul> - <li> Decompress more input starting at <a href="#next_in">next_in</a> and update <a href="#next_in">next_in</a> and <a href="#avail_in">avail_in</a> - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), <a href="#next_in">next_in</a> is updated and processing - will resume at this point for the next call of <a href="#inflate">inflate</a>(). - - <li> Provide more output starting at <a href="#next_out">next_out</a> and update <a href="#next_out">next_out</a> and - <a href="#avail_out">avail_out</a> accordingly. <a href="#inflate">inflate</a>() provides as much output as possible, - until there is no more input data or no more space in the output buffer - (see below about the flush parameter). - </ul> <p> - - Before the call of <a href="#inflate">inflate</a>(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (<a href="#avail_out">avail_out</a> == 0), or after each - call of <a href="#inflate">inflate</a>(). If <a href="#inflate">inflate</a> returns <a href="#Z_OK">Z_OK</a> and with zero <a href="#avail_out">avail_out</a>, it - must be called again after making room in the output buffer because there - might be more output pending. - <p> - - If the parameter flush is set to <a href="#Z_SYNC_FLUSH">Z_SYNC_FLUSH</a>, <a href="#inflate">inflate</a> flushes as much - output as possible to the output buffer. The flushing behavior of <a href="#inflate">inflate</a> is - not specified for values of the flush parameter other than <a href="#Z_SYNC_FLUSH">Z_SYNC_FLUSH</a> - and <a href="#Z_FINISH">Z_FINISH</a>, but the current implementation actually flushes as much output - as possible anyway. - <p> - - <a href="#inflate">inflate</a>() should normally be called until it returns <a href="#Z_STREAM_END">Z_STREAM_END</a> or an - error. However if all decompression is to be performed in a single step - (a single call of <a href="#inflate">inflate</a>), the parameter flush should be set to - <a href="#Z_FINISH">Z_FINISH</a>. In this case all pending input is processed and all pending - output is flushed ; <a href="#avail_out">avail_out</a> must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be <a href="#inflateEnd">inflateEnd</a> to deallocate the decompression <a href="#state">state</a>. The use of <a href="#Z_FINISH">Z_FINISH</a> - is never required, but can be used to inform <a href="#inflate">inflate</a> that a faster routine - may be used for the single <a href="#inflate">inflate</a>() call. - <p> - - If a preset dictionary is needed at this point (see <a href="#inflateSetDictionary">inflateSetDictionary</a> - below), <a href="#inflate">inflate</a> sets strm-<a href="#adler">adler</a> to the <a href="#adler32">adler32</a> checksum of the - dictionary chosen by the compressor and returns <a href="#Z_NEED_DICT">Z_NEED_DICT</a> ; otherwise - it sets strm-> <a href="#adler">adler</a> to the <a href="#adler32">adler32</a> checksum of all output produced - so far (that is, <a href="#total_out">total_out</a> bytes) and returns <a href="#Z_OK">Z_OK</a>, <a href="#Z_STREAM_END">Z_STREAM_END</a> or - an error code as described below. At the end of the stream, <a href="#inflate">inflate</a>() - checks that its computed <a href="#adler32">adler32</a> checksum is equal to that saved by the - compressor and returns <a href="#Z_STREAM_END">Z_STREAM_END</a> only if the checksum is correct. - <p> - - <a href="#inflate">inflate</a>() returns <a href="#Z_OK">Z_OK</a> if some progress has been made (more input processed - or more output produced), <a href="#Z_STREAM_END">Z_STREAM_END</a> if the end of the compressed data has - been reached and all uncompressed output has been produced, <a href="#Z_NEED_DICT">Z_NEED_DICT</a> if a - preset dictionary is needed at this point, <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - <a href="#adler32">adler32</a> checksum), <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the stream structure was inconsistent - (for example if <a href="#next_in">next_in</a> or <a href="#next_out">next_out</a> was NULL), <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not - enough memory, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> if no progress is possible or if there was not - enough room in the output buffer when <a href="#Z_FINISH">Z_FINISH</a> is used. In the <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> - case, the application may then call <a href="#inflateSync">inflateSync</a> to look for a good - compression block. - <p> - -<font color="Blue"><dt> int <a name="inflateEnd">inflateEnd</a> (<a href="#z_streamp">z_streamp</a> strm);</font> -<dd> - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - <p> - - <a href="#inflateEnd">inflateEnd</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the stream <a href="#state">state</a> - was inconsistent. In the error case, <a href="#msg">msg</a> may be set but then points to a - static string (which must not be deallocated). -</dl> -<hr> -<a name="Advanced functions"><h2> Advanced functions </h2> - The following functions are needed only in some special applications. -<h3> Function list </h3> -<ul> -<li> int <a href="#deflateInit2">deflateInit2</a> (<a href="#z_streamp">z_streamp</a> strm, -<li> int <a href="#deflateSetDictionary">deflateSetDictionary</a> (<a href="#z_streamp">z_streamp</a> strm, const Bytef *dictionary, uInt dictLength); -<li> int <a href="#deflateCopy">deflateCopy</a> (<a href="#z_streamp">z_streamp</a> dest, <a href="#z_streamp">z_streamp</a> source); -<li> int <a href="#deflateReset">deflateReset</a> (<a href="#z_streamp">z_streamp</a> strm); -<li> int <a href="#deflateParams">deflateParams</a> (<a href="#z_streamp">z_streamp</a> strm, int level, int strategy); -<li> int <a href="#inflateInit2">inflateInit2</a> (<a href="#z_streamp">z_streamp</a> strm, int windowBits); -<li> int <a href="#inflateSetDictionary">inflateSetDictionary</a> (<a href="#z_streamp">z_streamp</a> strm, const Bytef *dictionary, uInt dictLength); -<li> int <a href="#inflateSync">inflateSync</a> (<a href="#z_streamp">z_streamp</a> strm); -<li> int <a href="#inflateReset">inflateReset</a> (<a href="#z_streamp">z_streamp</a> strm); - -</ul> -<h3> Function description </h3> -<dl> -<font color="Blue"><dt> int <a name="deflateInit2">deflateInit2</a> (<a href="#z_streamp">z_streamp</a> strm, int level, int method, int windowBits, int memLevel, int strategy);</font> - -<dd> This is another version of <a href="#deflateInit">deflateInit</a> with more compression options. The - fields <a href="#next_in">next_in</a>, <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a> and <a href="#opaque">opaque</a> must be initialized before by - the caller.<p> - - The method parameter is the compression method. It must be <a href="#Z_DEFLATED">Z_DEFLATED</a> in - this version of the library.<p> - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - <a href="#deflateInit">deflateInit</a> is used instead.<p> - - The memLevel parameter specifies how much memory should be allocated - for the internal compression <a href="#state">state</a>. memLevel=1 uses minimum memory but - is slow and reduces compression ratio ; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel.<p> - - The strategy parameter is used to tune the compression algorithm. Use the - value <a href="#Z_DEFAULT_STRATEGY">Z_DEFAULT_STRATEGY</a> for normal data, <a href="#Z_FILTERED">Z_FILTERED</a> for data produced by a - filter (or predictor), or <a href="#Z_HUFFMAN_ONLY">Z_HUFFMAN_ONLY</a> to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to <a href="#compress">compress</a> them better. The effect of <a href="#Z_FILTERED">Z_FILTERED</a> is to force more - Huffman coding and less string matching ; it is somewhat intermediate - between Z_DEFAULT and <a href="#Z_HUFFMAN_ONLY">Z_HUFFMAN_ONLY</a>. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately.<p> - - <a href="#deflateInit2">deflateInit2</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not enough - memory, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if a parameter is invalid (such as an invalid - method). <a href="#msg">msg</a> is set to null if there is no error message. <a href="#deflateInit2">deflateInit2</a> does - not perform any compression: this will be done by <a href="#deflate">deflate</a>().<p> - -<font color="Blue"><dt> int <a name="deflateSetDictionary">deflateSetDictionary</a> (<a href="#z_streamp">z_streamp</a> strm, const Bytef *dictionary, uInt dictLength);</font> -<dd> - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after <a href="#deflateInit">deflateInit</a>, <a href="#deflateInit2">deflateInit2</a> or <a href="#deflateReset">deflateReset</a>, before any - call of <a href="#deflate">deflate</a>. The compressor and decompressor must use exactly the same - dictionary (see <a href="#inflateSetDictionary">inflateSetDictionary</a>).<p> - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy ; the data can then be compressed better than - with the default empty dictionary.<p> - - Depending on the size of the compression data structures selected by - <a href="#deflateInit">deflateInit</a> or <a href="#deflateInit2">deflateInit2</a>, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - <a href="#deflate">deflate</a> or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front.<p> - - Upon return of this function, strm-> <a href="#adler">adler</a> is set to the Adler32 value - of the dictionary ; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.)<p> - - <a href="#deflateSetDictionary">deflateSetDictionary</a> returns <a href="#Z_OK">Z_OK</a> if success, or <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if a - parameter is invalid (such as NULL dictionary) or the stream <a href="#state">state</a> is - inconsistent (for example if <a href="#deflate">deflate</a> has already been called for this stream - or if the compression method is bsort). <a href="#deflateSetDictionary">deflateSetDictionary</a> does not - perform any compression: this will be done by <a href="#deflate">deflate</a>().<p> - -<font color="Blue"><dt> int <a name="deflateCopy">deflateCopy</a> (<a href="#z_streamp">z_streamp</a> dest, <a href="#z_streamp">z_streamp</a> source);</font> -<dd> - Sets the destination stream as a complete copy of the source stream.<p> - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling <a href="#deflateEnd">deflateEnd</a>. Note that <a href="#deflateCopy">deflateCopy</a> duplicates the internal - compression <a href="#state">state</a> which can be quite large, so this strategy is slow and - can consume lots of memory.<p> - - <a href="#deflateCopy">deflateCopy</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not - enough memory, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the source stream <a href="#state">state</a> was inconsistent - (such as <a href="#zalloc">zalloc</a> being NULL). <a href="#msg">msg</a> is left unchanged in both source and - destination.<p> - -<font color="Blue"><dt> int <a name="deflateReset">deflateReset</a> (<a href="#z_streamp">z_streamp</a> strm);</font> -<dd> This function is equivalent to <a href="#deflateEnd">deflateEnd</a> followed by <a href="#deflateInit">deflateInit</a>, - but does not free and reallocate all the internal compression <a href="#state">state</a>. - The stream will keep the same compression level and any other attributes - that may have been set by <a href="#deflateInit2">deflateInit2</a>.<p> - - <a href="#deflateReset">deflateReset</a> returns <a href="#Z_OK">Z_OK</a> if success, or <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the source - stream <a href="#state">state</a> was inconsistent (such as <a href="#zalloc">zalloc</a> or <a href="#state">state</a> being NULL).<p> - -<font color="Blue"><dt> int <a name="deflateParams">deflateParams</a> (<a href="#z_streamp">z_streamp</a> strm, int level, int strategy);</font> -<dd> - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in <a href="#deflateInit2">deflateInit2</a>. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of <a href="#deflate">deflate</a>().<p> - - Before the call of <a href="#deflateParams">deflateParams</a>, the stream <a href="#state">state</a> must be set as for - a call of <a href="#deflate">deflate</a>(), since the currently available input may have to - be compressed and flushed. In particular, strm-> <a href="#avail_out">avail_out</a> must be - non-zero.<p> - - <a href="#deflateParams">deflateParams</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the source - stream <a href="#state">state</a> was inconsistent or if a parameter was invalid, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> - if strm->avail_out was zero.<p> - -<font color="Blue"><dt> int <a name="inflateInit2">inflateInit2</a> (<a href="#z_streamp">z_streamp</a> strm, int windowBits);</font> - -<dd> This is another version of <a href="#inflateInit">inflateInit</a> with an extra parameter. The - fields <a href="#next_in">next_in</a>, <a href="#avail_in">avail_in</a>, <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a> and <a href="#opaque">opaque</a> must be initialized - before by the caller.<p> - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if <a href="#inflateInit">inflateInit</a> is used - instead. If a compressed stream with a larger window size is given as - input, <a href="#inflate">inflate</a>() will return with the error code <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> instead of - trying to allocate a larger window.<p> - - <a href="#inflateInit2">inflateInit2</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_MEM_ERROR">Z_MEM_ERROR</a> if there was not enough - memory, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if a parameter is invalid (such as a negative - memLevel). <a href="#msg">msg</a> is set to null if there is no error message. <a href="#inflateInit2">inflateInit2</a> - does not perform any decompression apart from reading the zlib header if - present: this will be done by <a href="#inflate">inflate</a>(). (So <a href="#next_in">next_in</a> and <a href="#avail_in">avail_in</a> may be - modified, but <a href="#next_out">next_out</a> and <a href="#avail_out">avail_out</a> are unchanged.)<p> - -<font color="Blue"><dt> int <a name="inflateSetDictionary">inflateSetDictionary</a> (<a href="#z_streamp">z_streamp</a> strm, const Bytef *dictionary, uInt dictLength);</font> -<dd> - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of <a href="#inflate">inflate</a> - if this call returned <a href="#Z_NEED_DICT">Z_NEED_DICT</a>. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of - <a href="#inflate">inflate</a>. The compressor and decompressor must use exactly the same - dictionary (see <a href="#deflateSetDictionary">deflateSetDictionary</a>).<p> - - <a href="#inflateSetDictionary">inflateSetDictionary</a> returns <a href="#Z_OK">Z_OK</a> if success, <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if a - parameter is invalid (such as NULL dictionary) or the stream <a href="#state">state</a> is - inconsistent, <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> if the given dictionary doesn't match the - expected one (incorrect Adler32 value). <a href="#inflateSetDictionary">inflateSetDictionary</a> does not - perform any decompression: this will be done by subsequent calls of - <a href="#inflate">inflate</a>().<p> - -<font color="Blue"><dt> int <a name="inflateSync">inflateSync</a> (<a href="#z_streamp">z_streamp</a> strm);</font> - -<dd> Skips invalid compressed data until a full flush point (see above the - description of <a href="#deflate">deflate</a> with <a href="#Z_FULL_FLUSH">Z_FULL_FLUSH</a>) can be found, or until all - available input is skipped. No output is provided.<p> - - <a href="#inflateSync">inflateSync</a> returns <a href="#Z_OK">Z_OK</a> if a full flush point has been found, <a href="#Z_BUF_ERROR">Z_BUF_ERROR</a> - if no more input was provided, <a href="#Z_DATA_ERROR">Z_DATA_ERROR</a> if no flush point has been found, - or <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the stream structure was inconsistent. In the success - case, the application may save the current current value of <a href="#total_in">total_in</a> which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call <a href="#inflateSync">inflateSync</a>, providing more input each time, - until success or end of the input data.<p> - -<font color="Blue"><dt> int <a name="inflateReset">inflateReset</a> (<a href="#z_streamp">z_streamp</a> strm);</font> -<dd> - This function is equivalent to <a href="#inflateEnd">inflateEnd</a> followed by <a href="#inflateInit">inflateInit</a>, - but does not free and reallocate all the internal decompression <a href="#state">state</a>. - The stream will keep attributes that may have been set by <a href="#inflateInit2">inflateInit2</a>. - <p> - - <a href="#inflateReset">inflateReset</a> returns <a href="#Z_OK">Z_OK</a> if success, or <a href="#Z_STREAM_ERROR">Z_STREAM_ERROR</a> if the source - stream <a href="#state">state</a> was inconsistent (such as <a href="#zalloc">zalloc</a> or <a href="#state">state</a> being NULL). - <p> -</dl> - -<hr> -<a name="Checksum functions"><h2> Checksum functions </h2> - These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -<h3> Function list </h3> -<ul> -<li> uLong <a href="#adler32">adler32</a> (uLong <a href="#adler">adler</a>, const Bytef *buf, uInt len); -<li> uLong <a href="#crc32">crc32</a> (uLong crc, const Bytef *buf, uInt len); -</ul> -<h3> Function description </h3> -<dl> -<font color="Blue"><dt> uLong <a name="adler32">adler32</a> (uLong <a href="#adler">adler</a>, const Bytef *buf, uInt len);</font> -<dd> - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. - <p> - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - <pre> - - uLong <a href="#adler">adler</a> = <a href="#adler32">adler32</a>(0L, <a href="#Z_NULL">Z_NULL</a>, 0); - - while (read_buffer(buffer, length) != EOF) { - <a href="#adler">adler</a> = <a href="#adler32">adler32</a>(<a href="#adler">adler</a>, buffer, length); - } - if (<a href="#adler">adler</a> != original_adler) error(); - </pre> - -<font color="Blue"><dt> uLong <a name="crc32">crc32</a> (uLong crc, const Bytef *buf, uInt len);</font> -<dd> - Update a running crc with the bytes buf[0..len-1] and return the updated - crc. If buf is NULL, this function returns the required initial value - for the crc. Pre- and post-conditioning (one's complement) is performed - within this function so it shouldn't be done by the application. - Usage example: - <pre> - - uLong crc = <a href="#crc32">crc32</a>(0L, <a href="#Z_NULL">Z_NULL</a>, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = <a href="#crc32">crc32</a>(crc, buffer, length); - } - if (crc != original_crc) error(); - </pre> -</dl> -<hr> -<a name="struct z_stream_s"><h2> struct z_stream_s </h2> -<font color="Blue"> -<a name="z_stream_s"> -<pre> -typedef struct z_stream_s { - Bytef *<a name="next_in">next_in</a>; /* next input byte */ - uInt <a name="avail_in">avail_in</a>; /* number of bytes available at <a href="#next_in">next_in</a> */ - uLong <a name="total_in">total_in</a>; /* total nb of input bytes read so far */ - - Bytef *<a name="next_out">next_out</a>; /* next output byte should be put there */ - uInt <a name="avail_out">avail_out</a>; /* remaining free space at <a href="#next_out">next_out</a> */ - uLong <a name="total_out">total_out</a>; /* total nb of bytes output so far */ - - char *<a name="msg">msg</a>; /* last error message, NULL if no error */ - struct internal_state FAR *<a name="state">state</a>; /* not visible by applications */ - - alloc_func <a name="zalloc">zalloc</a>; /* used to allocate the internal <a href="#state">state</a> */ - free_func <a name="zfree">zfree</a>; /* used to free the internal <a href="#state">state</a> */ - voidpf <a name="opaque">opaque</a>; /* private data object passed to <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a> */ - - int <a name="data_type">data_type</a>; /* best guess about the data type: ascii or binary */ - uLong <a name="adler">adler</a>; /* <a href="#adler32">adler32</a> value of the uncompressed data */ - uLong <a name="reserved">reserved</a>; /* <a href="#reserved">reserved</a> for future use */ -} <a href="#z_stream_s">z_stream</a> ; - -typedef <a href="#z_stream_s">z_stream</a> FAR * <a name="z_streamp">z_streamp</a>; ÿ -</pre> -</font> - The application must update <a href="#next_in">next_in</a> and <a href="#avail_in">avail_in</a> when <a href="#avail_in">avail_in</a> has - dropped to zero. It must update <a href="#next_out">next_out</a> and <a href="#avail_out">avail_out</a> when <a href="#avail_out">avail_out</a> - has dropped to zero. The application must initialize <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a> and - <a href="#opaque">opaque</a> before calling the init function. All other fields are set by the - compression library and must not be updated by the application. <p> - - The <a href="#opaque">opaque</a> value provided by the application will be passed as the first - parameter for calls of <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a>. This can be useful for custom - memory management. The compression library attaches no meaning to the - <a href="#opaque">opaque</a> value. <p> - - <a href="#zalloc">zalloc</a> must return <a href="#Z_NULL">Z_NULL</a> if there is not enough memory for the object. - If zlib is used in a multi-threaded application, <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a> must be - thread safe. <p> - - On 16-bit systems, the functions <a href="#zalloc">zalloc</a> and <a href="#zfree">zfree</a> must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by <a href="#zalloc">zalloc</a> for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). - <p> - - The fields <a href="#total_in">total_in</a> and <a href="#total_out">total_out</a> can be used for statistics or - progress reports. After compression, <a href="#total_in">total_in</a> holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step). <p> - -<hr> -<a name="Constants"><h2> Constants </h2> -<font color="Blue"> -<pre> -#define <a name="Z_NO_FLUSH">Z_NO_FLUSH</a> 0 -#define <a name="Z_PARTIAL_FLUSH">Z_PARTIAL_FLUSH</a> 1 - /* will be removed, use <a href="#Z_SYNC_FLUSH">Z_SYNC_FLUSH</a> instead */ -#define <a name="Z_SYNC_FLUSH">Z_SYNC_FLUSH</a> 2 -#define <a name="Z_FULL_FLUSH">Z_FULL_FLUSH</a> 3 -#define <a name="Z_FINISH">Z_FINISH</a> 4 -/* Allowed flush values ; see <a href="#deflate">deflate</a>() below for details */ - -#define <a name="Z_OK">Z_OK</a> 0 -#define <a name="Z_STREAM_END">Z_STREAM_END</a> 1 -#define <a name="Z_NEED_DICT">Z_NEED_DICT</a> 2 -#define <a name="Z_ERRNO">Z_ERRNO</a> (-1) -#define <a name="Z_STREAM_ERROR">Z_STREAM_ERROR</a> (-2) -#define <a name="Z_DATA_ERROR">Z_DATA_ERROR</a> (-3) -#define <a name="Z_MEM_ERROR">Z_MEM_ERROR</a> (-4) -#define <a name="Z_BUF_ERROR">Z_BUF_ERROR</a> (-5) -#define <a name="Z_VERSION_ERROR">Z_VERSION_ERROR</a> (-6) -/* Return codes for the compression/decompression functions. Negative - * values are errors, positive values are used for special but normal events. - */ - -#define <a name="Z_NO_COMPRESSION">Z_NO_COMPRESSION</a> 0 -#define <a name="Z_BEST_SPEED">Z_BEST_SPEED</a> 1 -#define <a name="Z_BEST_COMPRESSION">Z_BEST_COMPRESSION</a> 9 -#define <a name="Z_DEFAULT_COMPRESSION">Z_DEFAULT_COMPRESSION</a> (-1) -/* compression levels */ - -#define <a name="Z_FILTERED">Z_FILTERED</a> 1 -#define <a name="Z_HUFFMAN_ONLY">Z_HUFFMAN_ONLY</a> 2 -#define <a name="Z_DEFAULT_STRATEGY">Z_DEFAULT_STRATEGY</a> 0 -/* compression strategy ; see <a href="#deflateInit2">deflateInit2</a>() below for details */ - -#define <a name="Z_BINARY">Z_BINARY</a> 0 -#define <a name="Z_ASCII">Z_ASCII</a> 1 -#define <a name="Z_UNKNOWN">Z_UNKNOWN</a> 2 -/* Possible values of the <a href="#data_type">data_type</a> field */ - -#define <a name="Z_DEFLATED">Z_DEFLATED</a> 8 -/* The <a href="#deflate">deflate</a> compression method (the only one supported in this version) */ - -#define <a name="Z_NULL">Z_NULL</a> 0 /* for initializing <a href="#zalloc">zalloc</a>, <a href="#zfree">zfree</a>, <a href="#opaque">opaque</a> */ - -#define <a name="zlib_version">zlib_version</a> <a href="#zlibVersion">zlibVersion</a>() -/* for compatibility with versions less than 1.0.2 */ -</pre> -</font> - -<hr> -<a name="Misc"><h2> Misc </h2> - <a href="#deflateInit">deflateInit</a> and <a href="#inflateInit">inflateInit</a> are macros to allow checking the zlib version - and the compiler's view of <a href="#z_stream_s">z_stream</a>. - <p> - Other functions: - <dl> - <font color="Blue"><dt> const char * <a name="zError">zError</a> (int err);</font> - <font color="Blue"><dt> int <a name="inflateSyncPoint">inflateSyncPoint</a> (<a href="#z_streamp">z_streamp</a> z);</font> - <font color="Blue"><dt> const uLongf * <a name="get_crc_table">get_crc_table</a> (void);</font> - </dl> - <hr> - <font size="-1"> - Last update: Wed Oct 13 20:42:34 1999<br> - piapi@csie.ntu.edu.tw - </font> - -</body> -</html> diff --git a/zlib/zutil.c b/zlib/zutil.c index dfc38ec1450..0ef4f99f57e 100644 --- a/zlib/zutil.c +++ b/zlib/zutil.c @@ -1,19 +1,21 @@ /* zutil.c -- target dependent utility functions for the compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h + * Copyright (C) 1995-2003 Jean-loup Gailly. + * For conditions of distribution and use, see copyright notice in zlib.h */ /* @(#) $Id$ */ #include "zutil.h" +#ifndef NO_DUMMY_DECL struct internal_state {int dummy;}; /* for buggy compilers */ +#endif #ifndef STDC extern void exit OF((int)); #endif -const char *z_errmsg[10] = { +const char * const z_errmsg[10] = { "need dictionary", /* Z_NEED_DICT 2 */ "stream end", /* Z_STREAM_END 1 */ "", /* Z_OK 0 */ @@ -31,6 +33,89 @@ const char * ZEXPORT zlibVersion() return ZLIB_VERSION; } +uLong ZEXPORT zlibCompileFlags() +{ + uLong flags; + + flags = 0; + switch (sizeof(uInt)) { + case 2: break; + case 4: flags += 1; break; + case 8: flags += 2; break; + default: flags += 3; + } + switch (sizeof(uLong)) { + case 2: break; + case 4: flags += 1 << 2; break; + case 8: flags += 2 << 2; break; + default: flags += 3 << 2; + } + switch (sizeof(voidpf)) { + case 2: break; + case 4: flags += 1 << 4; break; + case 8: flags += 2 << 4; break; + default: flags += 3 << 4; + } + switch (sizeof(z_off_t)) { + case 2: break; + case 4: flags += 1 << 6; break; + case 8: flags += 2 << 6; break; + default: flags += 3 << 6; + } +#ifdef DEBUG + flags += 1 << 8; +#endif +#if defined(ASMV) || defined(ASMINF) + flags += 1 << 9; +#endif +#ifdef ZLIB_WINAPI + flags += 1 << 10; +#endif +#ifdef BUILDFIXED + flags += 1 << 12; +#endif +#ifdef DYNAMIC_CRC_TABLE + flags += 1 << 13; +#endif +#ifdef NO_GZCOMPRESS + flags += 1 << 16; +#endif +#ifdef NO_GZIP + flags += 1 << 17; +#endif +#ifdef PKZIP_BUG_WORKAROUND + flags += 1 << 20; +#endif +#ifdef FASTEST + flags += 1 << 21; +#endif +#ifdef STDC +# ifdef NO_vsnprintf + flags += 1 << 25; +# ifdef HAS_vsprintf_void + flags += 1 << 26; +# endif +# else +# ifdef HAS_vsnprintf_void + flags += 1 << 26; +# endif +# endif +#else + flags += 1 << 24; +# ifdef NO_snprintf + flags += 1 << 25; +# ifdef HAS_sprintf_void + flags += 1 << 26; +# endif +# else +# ifdef HAS_snprintf_void + flags += 1 << 26; +# endif +# endif +#endif + return flags; +} + #ifdef DEBUG # ifndef verbose @@ -55,6 +140,10 @@ const char * ZEXPORT zError(err) return ERR_MSG(err); } +#if defined(_WIN32_WCE) + /* does not exist on WCE */ + int errno = 0; +#endif #ifndef HAVE_MEMCPY @@ -93,11 +182,12 @@ void zmemzero(dest, len) } #endif + +#ifdef SYS16BIT + #ifdef __TURBOC__ -#if (defined( __BORLANDC__) || !defined(SMALL_MEDIUM)) && !defined(__32BIT__) -/* Small and medium model in Turbo C are for now limited to near allocation - * with reduced MAX_WBITS and MAX_MEM_LEVEL - */ +/* Turbo C in 16-bit mode */ + # define MY_ZCALLOC /* Turbo C malloc() does not allow dynamic allocation of 64K bytes @@ -169,11 +259,11 @@ void zcfree (voidpf opaque, voidpf ptr) ptr = opaque; /* just to make some compilers happy */ Assert(0, "zcfree: ptr not found"); } -#endif + #endif /* __TURBOC__ */ -#if defined(M_I86) && !defined(__32BIT__) +#ifdef M_I86 /* Microsoft C in 16-bit mode */ # define MY_ZCALLOC @@ -195,12 +285,15 @@ void zcfree (voidpf opaque, voidpf ptr) _hfree(ptr); } -#endif /* MSC */ +#endif /* M_I86 */ + +#endif /* SYS16BIT */ #ifndef MY_ZCALLOC /* Any system without a special alloc function */ #ifndef STDC +extern voidp malloc OF((uInt size)); extern voidp calloc OF((uInt items, uInt size)); extern void free OF((voidpf ptr)); #endif @@ -211,7 +304,8 @@ voidpf zcalloc (opaque, items, size) unsigned size; { if (opaque) items += size - size; /* make compiler happy */ - return (voidpf)calloc(items, size); + return sizeof(uInt) > 2 ? (voidpf)malloc(items * size) : + (voidpf)calloc(items, size); } void zcfree (opaque, ptr) diff --git a/zlib/zutil.h b/zlib/zutil.h index 718ebc15be1..87b70acec23 100644 --- a/zlib/zutil.h +++ b/zlib/zutil.h @@ -1,5 +1,5 @@ /* zutil.h -- internal interface and configuration of the compression library - * Copyright (C) 1995-2002 Jean-loup Gailly. + * Copyright (C) 1995-2003 Jean-loup Gailly. * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -10,9 +10,10 @@ /* @(#) $Id$ */ -#ifndef _Z_UTIL_H -#define _Z_UTIL_H +#ifndef ZUTIL_H +#define ZUTIL_H +#define ZLIB_INTERNAL #include "zlib.h" #ifdef STDC @@ -37,7 +38,7 @@ typedef unsigned short ush; typedef ush FAR ushf; typedef unsigned long ulg; -extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ +extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */ /* (size given to avoid silly warnings with Visual C++) */ #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] @@ -73,7 +74,7 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ /* target dependencies */ -#ifdef MSDOS +#if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32)) # define OS_CODE 0x00 # if defined(__TURBOC__) || defined(__BORLANDC__) # if(__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__)) @@ -81,19 +82,15 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ void _Cdecl farfree( void *block ); void *_Cdecl farmalloc( unsigned long nbytes ); # else -# include <alloc.h> +# include <alloc.h> # endif # else /* MSC or DJGPP */ # include <malloc.h> # endif #endif -#ifdef OS2 -# define OS_CODE 0x06 -#endif - -#ifdef WIN32 /* Window 95 & Windows NT */ -# define OS_CODE 0x0b +#ifdef AMIGA +# define OS_CODE 0x01 #endif #if defined(VAXC) || defined(VMS) @@ -102,14 +99,14 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512") #endif -#ifdef AMIGA -# define OS_CODE 0x01 -#endif - #if defined(ATARI) || defined(atarist) # define OS_CODE 0x05 #endif +#ifdef OS2 +# define OS_CODE 0x06 +#endif + #if defined(MACOS) || defined(TARGET_OS_MAC) # define OS_CODE 0x07 # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os @@ -121,24 +118,37 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ # endif #endif -#ifdef __50SERIES /* Prime/PRIMOS */ -# define OS_CODE 0x0F -#endif - #ifdef TOPS20 # define OS_CODE 0x0a #endif +#ifdef WIN32 +# ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */ +# define OS_CODE 0x0b +# endif +#endif + +#ifdef __50SERIES /* Prime/PRIMOS */ +# define OS_CODE 0x0f +#endif + #if defined(_BEOS_) || defined(RISCOS) # define fdopen(fd,mode) NULL /* No fdopen() */ #endif #if (defined(_MSC_VER) && (_MSC_VER > 600)) -# define fdopen(fd,type) _fdopen(fd,type) +# if defined(_WIN32_WCE) +# define fdopen(fd,mode) NULL /* No fdopen() */ +# ifndef _PTRDIFF_T_DEFINED + typedef int ptrdiff_t; +# define _PTRDIFF_T_DEFINED +# endif +# else +# define fdopen(fd,type) _fdopen(fd,type) +# endif #endif - - /* Common defaults */ + /* common defaults */ #ifndef OS_CODE # define OS_CODE 0x03 /* assume Unix */ @@ -150,6 +160,36 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ /* functions */ +#if defined(STDC99) || (defined(__TURBOC__) && __TURBOC__ >= 0x550) +# ifndef HAVE_VSNPRINTF +# define HAVE_VSNPRINTF +# endif +#endif +#if defined(__CYGWIN__) +# ifndef HAVE_VSNPRINTF +# define HAVE_VSNPRINTF +# endif +#endif +#ifndef HAVE_VSNPRINTF +# ifdef MSDOS + /* vsnprintf may exist on some MS-DOS compilers (DJGPP?), + but for now we just assume it doesn't. */ +# define NO_vsnprintf +# endif +# ifdef __TURBOC__ +# define NO_vsnprintf +# endif +# ifdef WIN32 + /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */ +# if !defined(vsnprintf) && !defined(NO_vsnprintf) +# define vsnprintf _vsnprintf +# endif +# endif +# ifdef __SASC +# define NO_vsnprintf +# endif +#endif + #ifdef HAVE_STRERROR extern char *strerror OF((int)); # define zstrerror(errnum) strerror(errnum) @@ -207,8 +247,6 @@ extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ #endif -typedef uLong (ZEXPORT *check_func) OF((uLong check, const Bytef *buf, - uInt len)); voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size)); void zcfree OF((voidpf opaque, voidpf ptr)); @@ -217,4 +255,4 @@ void zcfree OF((voidpf opaque, voidpf ptr)); #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr)) #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} -#endif /* _Z_UTIL_H */ +#endif /* ZUTIL_H */ |