diff options
Diffstat (limited to 'libtiff/tif_unix.c')
| -rw-r--r-- | libtiff/tif_unix.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/libtiff/tif_unix.c b/libtiff/tif_unix.c new file mode 100644 index 00000000..5c4a9010 --- /dev/null +++ b/libtiff/tif_unix.c @@ -0,0 +1,209 @@ +/* $Header: /usr/people/sam/tiff/libtiff/RCS/tif_unix.c,v 1.15 1995/06/06 23:49:31 sam Exp $ */ + +/* + * Copyright (c) 1988-1995 Sam Leffler + * Copyright (c) 1991-1995 Silicon Graphics, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and + * its documentation for any purpose is hereby granted without fee, provided + * that (i) the above copyright notices and this permission notice appear in + * all copies of the software and related documentation, and (ii) the names of + * Sam Leffler and Silicon Graphics may not be used in any advertising or + * publicity relating to the software without the specific, prior written + * permission of Sam Leffler and Silicon Graphics. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR + * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, + * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF + * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +/* + * TIFF Library UNIX-specific Routines. + */ +#include "tiffiop.h" +#include <sys/types.h> +#include <unistd.h> +#include <stdlib.h> + +static tsize_t +_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) read((int) fd, buf, (size_t) size)); +} + +static tsize_t +_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) +{ + return ((tsize_t) write((int) fd, buf, (size_t) size)); +} + +static toff_t +_tiffSeekProc(thandle_t fd, toff_t off, int whence) +{ + return ((toff_t) lseek((int) fd, (off_t) off, whence)); +} + +static int +_tiffCloseProc(thandle_t fd) +{ + return (close((int) fd)); +} + +#include <sys/stat.h> + +static toff_t +_tiffSizeProc(thandle_t fd) +{ +#ifdef _AM29K + long fsize; + return ((fsize = lseek((int) fd, 0, SEEK_END)) < 0 ? 0 : fsize); +#else + struct stat sb; + return (toff_t) (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); +#endif +} + +#ifdef HAVE_MMAP +#include <sys/mman.h> + +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + toff_t size = _tiffSizeProc(fd); + if (size != (toff_t) -1) { + *pbase = (tdata_t) + mmap(0, size, PROT_READ, MAP_SHARED, (int) fd, 0); + if (*pbase != (tdata_t) -1) { + *psize = size; + return (1); + } + } + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; + (void) munmap(base, (off_t) size); +} +#else /* !HAVE_MMAP */ +static int +_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) +{ + (void) fd; (void) pbase; (void) psize; + return (0); +} + +static void +_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) +{ + (void) fd; (void) base; (void) size; +} +#endif /* !HAVE_MMAP */ + +/* + * Open a TIFF file descriptor for read/writing. + */ +TIFF* +TIFFFdOpen(int fd, const char* name, const char* mode) +{ + TIFF* tif; + + tif = TIFFClientOpen(name, mode, + (thandle_t) fd, + _tiffReadProc, _tiffWriteProc, + _tiffSeekProc, _tiffCloseProc, _tiffSizeProc, + _tiffMapProc, _tiffUnmapProc); + if (tif) + tif->tif_fd = fd; + return (tif); +} + +/* + * Open a TIFF file for read/writing. + */ +TIFF* +TIFFOpen(const char* name, const char* mode) +{ + static const char module[] = "TIFFOpen"; + int m, fd; + + m = _TIFFgetMode(mode, module); + if (m == -1) + return ((TIFF*)0); +#ifdef _AM29K + fd = open(name, m); +#else + fd = open(name, m, 0666); +#endif + if (fd < 0) { + TIFFError(module, "%s: Cannot open", name); + return ((TIFF *)0); + } + return (TIFFFdOpen(fd, name, mode)); +} + +void* +_TIFFmalloc(tsize_t s) +{ + return (malloc((size_t) s)); +} + +void +_TIFFfree(tdata_t p) +{ + free(p); +} + +void* +_TIFFrealloc(tdata_t p, tsize_t s) +{ + return (realloc(p, (size_t) s)); +} + +void +_TIFFmemset(tdata_t p, int v, tsize_t c) +{ + memset(p, v, (size_t) c); +} + +void +_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) +{ + memcpy(d, s, (size_t) c); +} + +int +_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c) +{ + return (memcmp(p1, p2, (size_t) c)); +} + +static void +unixWarningHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + fprintf(stderr, "Warning, "); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFwarningHandler = unixWarningHandler; + +static void +unixErrorHandler(const char* module, const char* fmt, va_list ap) +{ + if (module != NULL) + fprintf(stderr, "%s: ", module); + vfprintf(stderr, fmt, ap); + fprintf(stderr, ".\n"); +} +TIFFErrorHandler _TIFFerrorHandler = unixErrorHandler; |