diff options
author | Simon Josefsson <simon@josefsson.org> | 2008-09-19 14:25:20 +0200 |
---|---|---|
committer | Simon Josefsson <simon@josefsson.org> | 2008-09-19 14:25:20 +0200 |
commit | fedb89eb43acf05670e53a647a3ed1a884b0bb45 (patch) | |
tree | ba6b2f191b1cdcbe1cfd584997f10191dd5fee04 | |
parent | 22d52ab692a196f71e5e150aa59ac7fd436e4db1 (diff) | |
download | gnutls-fedb89eb43acf05670e53a647a3ed1a884b0bb45.tar.gz |
Add md5 and hmac from gnulib to libextra/gl/.
-rw-r--r-- | configure.in | 2 | ||||
-rw-r--r-- | libextra/gl/Makefile.am | 72 | ||||
-rw-r--r-- | libextra/gl/hmac-md5.c | 81 | ||||
-rw-r--r-- | libextra/gl/hmac.h | 41 | ||||
-rw-r--r-- | libextra/gl/m4/gnulib-cache.m4 | 37 | ||||
-rw-r--r-- | libextra/gl/m4/gnulib-common.m4 | 91 | ||||
-rw-r--r-- | libextra/gl/m4/gnulib-comp.m4 | 184 | ||||
-rw-r--r-- | libextra/gl/m4/gnulib-tool.m4 | 57 | ||||
-rw-r--r-- | libextra/gl/m4/hmac-md5.m4 | 10 | ||||
-rw-r--r-- | libextra/gl/m4/md5.m4 | 15 | ||||
-rw-r--r-- | libextra/gl/m4/memxor.m4 | 11 | ||||
-rw-r--r-- | libextra/gl/md5.c | 455 | ||||
-rw-r--r-- | libextra/gl/md5.h | 118 | ||||
-rw-r--r-- | libextra/gl/memxor.c | 35 | ||||
-rw-r--r-- | libextra/gl/memxor.h | 31 |
15 files changed, 1240 insertions, 0 deletions
diff --git a/configure.in b/configure.in index f928b6b251..bf898925f5 100644 --- a/configure.in +++ b/configure.in @@ -98,6 +98,7 @@ AC_MSG_RESULT([*** gl_EARLY lgl_EARLY +xgl_EARLY AC_C_CONST AC_C_INLINE @@ -649,6 +650,7 @@ AC_MSG_RESULT([*** ]) gl_INIT lgl_INIT +xgl_INIT AC_MSG_RESULT([*** *** Detecting options for shared libraries... diff --git a/libextra/gl/Makefile.am b/libextra/gl/Makefile.am new file mode 100644 index 0000000000..12f8a4e924 --- /dev/null +++ b/libextra/gl/Makefile.am @@ -0,0 +1,72 @@ +## DO NOT EDIT! GENERATED AUTOMATICALLY! +## Process this file with automake to produce Makefile.in. +# Copyright (C) 2002-2008 Free Software Foundation, Inc. +# +# This file is free software, distributed under the terms of the GNU +# General Public License. As a special exception to the GNU General +# Public License, this file may be distributed as part of a program +# that contains a configuration script generated by Autoconf, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# Reproduce by: gnulib-tool --import --dir=. --lib=libxgnu --source-base=libextra/gl --m4-base=libextra/gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=dummy --avoid=stdint --libtool --macro-prefix=xgl --no-vc-files crypto/hmac-md5 crypto/md5 + +AUTOMAKE_OPTIONS = 1.5 gnits + +noinst_HEADERS = +noinst_LIBRARIES = +noinst_LTLIBRARIES = +EXTRA_DIST = +BUILT_SOURCES = +SUFFIXES = +MOSTLYCLEANFILES = core *.stackdump +MOSTLYCLEANDIRS = +CLEANFILES = +DISTCLEANFILES = +MAINTAINERCLEANFILES = + +AM_CPPFLAGS = + +noinst_LTLIBRARIES += libxgnu.la + +libxgnu_la_SOURCES = +libxgnu_la_LIBADD = $(xgl_LTLIBOBJS) +libxgnu_la_DEPENDENCIES = $(xgl_LTLIBOBJS) +EXTRA_libxgnu_la_SOURCES = +libxgnu_la_LDFLAGS = $(AM_LDFLAGS) + +## begin gnulib module crypto/hmac-md5 + + +EXTRA_DIST += hmac-md5.c hmac.h + +EXTRA_libxgnu_la_SOURCES += hmac-md5.c + +## end gnulib module crypto/hmac-md5 + +## begin gnulib module crypto/md5 + + +EXTRA_DIST += md5.c md5.h + +EXTRA_libxgnu_la_SOURCES += md5.c + +## end gnulib module crypto/md5 + +## begin gnulib module memxor + + +EXTRA_DIST += memxor.c memxor.h + +EXTRA_libxgnu_la_SOURCES += memxor.c + +## end gnulib module memxor + + +mostlyclean-local: mostlyclean-generic + @for dir in '' $(MOSTLYCLEANDIRS); do \ + if test -n "$$dir" && test -d $$dir; then \ + echo "rmdir $$dir"; rmdir $$dir; \ + fi; \ + done; \ + : diff --git a/libextra/gl/hmac-md5.c b/libextra/gl/hmac-md5.c new file mode 100644 index 0000000000..a6811c275c --- /dev/null +++ b/libextra/gl/hmac-md5.c @@ -0,0 +1,81 @@ +/* hmac-md5.c -- hashed message authentication codes + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Simon Josefsson. */ + +#include <config.h> + +#include "hmac.h" + +#include "memxor.h" +#include "md5.h" + +#include <string.h> + +#define IPAD 0x36 +#define OPAD 0x5c + +int +hmac_md5 (const void *key, size_t keylen, + const void *in, size_t inlen, void *resbuf) +{ + struct md5_ctx inner; + struct md5_ctx outer; + char optkeybuf[16]; + char block[64]; + char innerhash[16]; + + /* Reduce the key's size, so that it becomes <= 64 bytes large. */ + + if (keylen > 64) + { + struct md5_ctx keyhash; + + md5_init_ctx (&keyhash); + md5_process_bytes (key, keylen, &keyhash); + md5_finish_ctx (&keyhash, optkeybuf); + + key = optkeybuf; + keylen = 16; + } + + /* Compute INNERHASH from KEY and IN. */ + + md5_init_ctx (&inner); + + memset (block, IPAD, sizeof (block)); + memxor (block, key, keylen); + + md5_process_block (block, 64, &inner); + md5_process_bytes (in, inlen, &inner); + + md5_finish_ctx (&inner, innerhash); + + /* Compute result from KEY and INNERHASH. */ + + md5_init_ctx (&outer); + + memset (block, OPAD, sizeof (block)); + memxor (block, key, keylen); + + md5_process_block (block, 64, &outer); + md5_process_bytes (innerhash, 16, &outer); + + md5_finish_ctx (&outer, resbuf); + + return 0; +} diff --git a/libextra/gl/hmac.h b/libextra/gl/hmac.h new file mode 100644 index 0000000000..90dae1c32a --- /dev/null +++ b/libextra/gl/hmac.h @@ -0,0 +1,41 @@ +/* hmac.h -- hashed message authentication codes + Copyright (C) 2005 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Simon Josefsson. */ + +#ifndef HMAC_H +# define HMAC_H 1 + +#include <stddef.h> + +/* Compute Hashed Message Authentication Code with MD5, as described + in RFC 2104, over BUFFER data of BUFLEN bytes using the KEY of + KEYLEN bytes, writing the output to pre-allocated 16 byte minimum + RESBUF buffer. Return 0 on success. */ +int +hmac_md5 (const void *key, size_t keylen, + const void *buffer, size_t buflen, void *resbuf); + +/* Compute Hashed Message Authentication Code with SHA-1, over BUFFER + data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the + output to pre-allocated 20 byte minimum RESBUF buffer. Return 0 on + success. */ +int +hmac_sha1 (const void *key, size_t keylen, + const void *in, size_t inlen, void *resbuf); + +#endif /* HMAC_H */ diff --git a/libextra/gl/m4/gnulib-cache.m4 b/libextra/gl/m4/gnulib-cache.m4 new file mode 100644 index 0000000000..7b1322911d --- /dev/null +++ b/libextra/gl/m4/gnulib-cache.m4 @@ -0,0 +1,37 @@ +# Copyright (C) 2002-2008 Free Software Foundation, Inc. +# +# This file is free software, distributed under the terms of the GNU +# General Public License. As a special exception to the GNU General +# Public License, this file may be distributed as part of a program +# that contains a configuration script generated by Autoconf, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# +# This file represents the specification of how gnulib-tool is used. +# It acts as a cache: It is written and read by gnulib-tool. +# In projects using CVS, this file is meant to be stored in CVS, +# like the configure.ac and various Makefile.am files. + + +# Specification in the form of a command-line invocation: +# gnulib-tool --import --dir=. --lib=libxgnu --source-base=libextra/gl --m4-base=libextra/gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=dummy --avoid=stdint --libtool --macro-prefix=xgl --no-vc-files crypto/hmac-md5 crypto/md5 + +# Specification in the form of a few gnulib-tool.m4 macro invocations: +gl_LOCAL_DIR([]) +gl_MODULES([ + crypto/hmac-md5 + crypto/md5 +]) +gl_AVOID([dummy stdint]) +gl_SOURCE_BASE([libextra/gl]) +gl_M4_BASE([libextra/gl/m4]) +gl_PO_BASE([]) +gl_DOC_BASE([doc]) +gl_TESTS_BASE([tests]) +gl_LIB([libxgnu]) +gl_MAKEFILE_NAME([]) +gl_LIBTOOL +gl_MACRO_PREFIX([xgl]) +gl_PO_DOMAIN([]) +gl_VC_FILES([false]) diff --git a/libextra/gl/m4/gnulib-common.m4 b/libextra/gl/m4/gnulib-common.m4 new file mode 100644 index 0000000000..34d91c728f --- /dev/null +++ b/libextra/gl/m4/gnulib-common.m4 @@ -0,0 +1,91 @@ +# gnulib-common.m4 serial 5 +dnl Copyright (C) 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# gl_COMMON +# is expanded unconditionally through gnulib-tool magic. +AC_DEFUN([gl_COMMON], [ + dnl Use AC_REQUIRE here, so that the code is expanded once only. + AC_REQUIRE([gl_COMMON_BODY]) +]) +AC_DEFUN([gl_COMMON_BODY], [ + AH_VERBATIM([isoc99_inline], +[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports + the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of + earlier versions), but does not display it by setting __GNUC_STDC_INLINE__. + __APPLE__ && __MACH__ test for MacOS X. + __APPLE_CC__ tests for the Apple compiler and its version. + __STDC_VERSION__ tests for the C99 mode. */ +#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__ +# define __GNUC_STDC_INLINE__ 1 +#endif]) +]) + +# gl_MODULE_INDICATOR([modulename]) +# defines a C macro indicating the presence of the given module. +AC_DEFUN([gl_MODULE_INDICATOR], +[ + AC_DEFINE([GNULIB_]translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1], + [Define to 1 when using the gnulib module ]$1[.]) +]) + +# m4_foreach_w +# is a backport of autoconf-2.59c's m4_foreach_w. +# Remove this macro when we can assume autoconf >= 2.60. +m4_ifndef([m4_foreach_w], + [m4_define([m4_foreach_w], + [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])]) + +# AC_PROG_MKDIR_P +# is a backport of autoconf-2.60's AC_PROG_MKDIR_P. +# Remove this macro when we can assume autoconf >= 2.60. +m4_ifdef([AC_PROG_MKDIR_P], [], [ + AC_DEFUN([AC_PROG_MKDIR_P], + [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake + MKDIR_P='$(mkdir_p)' + AC_SUBST([MKDIR_P])])]) + +# AC_C_RESTRICT +# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61, +# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++ +# works. +# This definition can be removed once autoconf >= 2.62 can be assumed. +AC_DEFUN([AC_C_RESTRICT], +[AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict, + [ac_cv_c_restrict=no + # The order here caters to the fact that C++ does not require restrict. + for ac_kw in __restrict __restrict__ _Restrict restrict; do + AC_COMPILE_IFELSE([AC_LANG_PROGRAM( + [[typedef int * int_ptr; + int foo (int_ptr $ac_kw ip) { + return ip[0]; + }]], + [[int s[1]; + int * $ac_kw t = s; + t[0] = 0; + return foo(t)]])], + [ac_cv_c_restrict=$ac_kw]) + test "$ac_cv_c_restrict" != no && break + done + ]) + AH_VERBATIM([restrict], +[/* Define to the equivalent of the C99 'restrict' keyword, or to + nothing if this is not supported. Do not define if restrict is + supported directly. */ +#undef restrict +/* Work around a bug in Sun C++: it does not support _Restrict, even + though the corresponding Sun C compiler does, which causes + "#define restrict _Restrict" in the previous line. Perhaps some future + version of Sun C++ will work with _Restrict; if so, it'll probably + define __RESTRICT, just as Sun C does. */ +#if defined __SUNPRO_CC && !defined __RESTRICT +# define _Restrict +#endif]) + case $ac_cv_c_restrict in + restrict) ;; + no) AC_DEFINE([restrict], []) ;; + *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; + esac +]) diff --git a/libextra/gl/m4/gnulib-comp.m4 b/libextra/gl/m4/gnulib-comp.m4 new file mode 100644 index 0000000000..2cff4a82b7 --- /dev/null +++ b/libextra/gl/m4/gnulib-comp.m4 @@ -0,0 +1,184 @@ +# DO NOT EDIT! GENERATED AUTOMATICALLY! +# Copyright (C) 2002-2008 Free Software Foundation, Inc. +# +# This file is free software, distributed under the terms of the GNU +# General Public License. As a special exception to the GNU General +# Public License, this file may be distributed as part of a program +# that contains a configuration script generated by Autoconf, under +# the same distribution terms as the rest of that program. +# +# Generated by gnulib-tool. +# +# This file represents the compiled summary of the specification in +# gnulib-cache.m4. It lists the computed macro invocations that need +# to be invoked from configure.ac. +# In projects using CVS, this file can be treated like other built files. + + +# This macro should be invoked from ./configure.in, in the section +# "Checks for programs", right after AC_PROG_CC, and certainly before +# any checks for libraries, header files, types and library functions. +AC_DEFUN([xgl_EARLY], +[ + m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace + m4_pattern_allow([^gl_ES$])dnl a valid locale name + m4_pattern_allow([^gl_LIBOBJS$])dnl a variable + m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable + AC_REQUIRE([AC_PROG_RANLIB]) +]) + +# This macro should be invoked from ./configure.in, in the section +# "Check for header files, types and library functions". +AC_DEFUN([xgl_INIT], +[ + AM_CONDITIONAL([GL_COND_LIBTOOL], [true]) + gl_cond_libtool=true + m4_pushdef([AC_LIBOBJ], m4_defn([xgl_LIBOBJ])) + m4_pushdef([AC_REPLACE_FUNCS], m4_defn([xgl_REPLACE_FUNCS])) + m4_pushdef([AC_LIBSOURCES], m4_defn([xgl_LIBSOURCES])) + m4_pushdef([xgl_LIBSOURCES_LIST], []) + m4_pushdef([xgl_LIBSOURCES_DIR], []) + gl_COMMON + gl_source_base='libextra/gl' + gl_HMAC_MD5 + gl_MD5 + gl_MEMXOR + m4_ifval(xgl_LIBSOURCES_LIST, [ + m4_syscmd([test ! -d ]m4_defn([xgl_LIBSOURCES_DIR])[ || + for gl_file in ]xgl_LIBSOURCES_LIST[ ; do + if test ! -r ]m4_defn([xgl_LIBSOURCES_DIR])[/$gl_file ; then + echo "missing file ]m4_defn([xgl_LIBSOURCES_DIR])[/$gl_file" >&2 + exit 1 + fi + done])dnl + m4_if(m4_sysval, [0], [], + [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) + ]) + m4_popdef([xgl_LIBSOURCES_DIR]) + m4_popdef([xgl_LIBSOURCES_LIST]) + m4_popdef([AC_LIBSOURCES]) + m4_popdef([AC_REPLACE_FUNCS]) + m4_popdef([AC_LIBOBJ]) + AC_CONFIG_COMMANDS_PRE([ + xgl_libobjs= + xgl_ltlibobjs= + if test -n "$xgl_LIBOBJS"; then + # Remove the extension. + sed_drop_objext='s/\.o$//;s/\.obj$//' + for i in `for i in $xgl_LIBOBJS; do echo "$i"; done | sed "$sed_drop_objext" | sort | uniq`; do + xgl_libobjs="$xgl_libobjs $i.$ac_objext" + xgl_ltlibobjs="$xgl_ltlibobjs $i.lo" + done + fi + AC_SUBST([xgl_LIBOBJS], [$xgl_libobjs]) + AC_SUBST([xgl_LTLIBOBJS], [$xgl_ltlibobjs]) + ]) + gltests_libdeps= + gltests_ltlibdeps= + m4_pushdef([AC_LIBOBJ], m4_defn([xgltests_LIBOBJ])) + m4_pushdef([AC_REPLACE_FUNCS], m4_defn([xgltests_REPLACE_FUNCS])) + m4_pushdef([AC_LIBSOURCES], m4_defn([xgltests_LIBSOURCES])) + m4_pushdef([xgltests_LIBSOURCES_LIST], []) + m4_pushdef([xgltests_LIBSOURCES_DIR], []) + gl_COMMON + gl_source_base='tests' + m4_ifval(xgltests_LIBSOURCES_LIST, [ + m4_syscmd([test ! -d ]m4_defn([xgltests_LIBSOURCES_DIR])[ || + for gl_file in ]xgltests_LIBSOURCES_LIST[ ; do + if test ! -r ]m4_defn([xgltests_LIBSOURCES_DIR])[/$gl_file ; then + echo "missing file ]m4_defn([xgltests_LIBSOURCES_DIR])[/$gl_file" >&2 + exit 1 + fi + done])dnl + m4_if(m4_sysval, [0], [], + [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) + ]) + m4_popdef([xgltests_LIBSOURCES_DIR]) + m4_popdef([xgltests_LIBSOURCES_LIST]) + m4_popdef([AC_LIBSOURCES]) + m4_popdef([AC_REPLACE_FUNCS]) + m4_popdef([AC_LIBOBJ]) + AC_CONFIG_COMMANDS_PRE([ + xgltests_libobjs= + xgltests_ltlibobjs= + if test -n "$xgltests_LIBOBJS"; then + # Remove the extension. + sed_drop_objext='s/\.o$//;s/\.obj$//' + for i in `for i in $xgltests_LIBOBJS; do echo "$i"; done | sed "$sed_drop_objext" | sort | uniq`; do + xgltests_libobjs="$xgltests_libobjs $i.$ac_objext" + xgltests_ltlibobjs="$xgltests_ltlibobjs $i.lo" + done + fi + AC_SUBST([xgltests_LIBOBJS], [$xgltests_libobjs]) + AC_SUBST([xgltests_LTLIBOBJS], [$xgltests_ltlibobjs]) + ]) +]) + +# Like AC_LIBOBJ, except that the module name goes +# into xgl_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([xgl_LIBOBJ], [ + AS_LITERAL_IF([$1], [xgl_LIBSOURCES([$1.c])])dnl + xgl_LIBOBJS="$xgl_LIBOBJS $1.$ac_objext" +]) + +# Like AC_REPLACE_FUNCS, except that the module name goes +# into xgl_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([xgl_REPLACE_FUNCS], [ + m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl + AC_CHECK_FUNCS([$1], , [xgl_LIBOBJ($ac_func)]) +]) + +# Like AC_LIBSOURCES, except the directory where the source file is +# expected is derived from the gnulib-tool parameterization, +# and alloca is special cased (for the alloca-opt module). +# We could also entirely rely on EXTRA_lib..._SOURCES. +AC_DEFUN([xgl_LIBSOURCES], [ + m4_foreach([_gl_NAME], [$1], [ + m4_if(_gl_NAME, [alloca.c], [], [ + m4_define([xgl_LIBSOURCES_DIR], [libextra/gl]) + m4_append([xgl_LIBSOURCES_LIST], _gl_NAME, [ ]) + ]) + ]) +]) + +# Like AC_LIBOBJ, except that the module name goes +# into xgltests_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([xgltests_LIBOBJ], [ + AS_LITERAL_IF([$1], [xgltests_LIBSOURCES([$1.c])])dnl + xgltests_LIBOBJS="$xgltests_LIBOBJS $1.$ac_objext" +]) + +# Like AC_REPLACE_FUNCS, except that the module name goes +# into xgltests_LIBOBJS instead of into LIBOBJS. +AC_DEFUN([xgltests_REPLACE_FUNCS], [ + m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl + AC_CHECK_FUNCS([$1], , [xgltests_LIBOBJ($ac_func)]) +]) + +# Like AC_LIBSOURCES, except the directory where the source file is +# expected is derived from the gnulib-tool parameterization, +# and alloca is special cased (for the alloca-opt module). +# We could also entirely rely on EXTRA_lib..._SOURCES. +AC_DEFUN([xgltests_LIBSOURCES], [ + m4_foreach([_gl_NAME], [$1], [ + m4_if(_gl_NAME, [alloca.c], [], [ + m4_define([xgltests_LIBSOURCES_DIR], [tests]) + m4_append([xgltests_LIBSOURCES_LIST], _gl_NAME, [ ]) + ]) + ]) +]) + +# This macro records the list of files which have been installed by +# gnulib-tool and may be removed by future gnulib-tool invocations. +AC_DEFUN([xgl_FILE_LIST], [ + lib/hmac-md5.c + lib/hmac.h + lib/md5.c + lib/md5.h + lib/memxor.c + lib/memxor.h + m4/gnulib-common.m4 + m4/hmac-md5.m4 + m4/md5.m4 + m4/memxor.m4 +]) diff --git a/libextra/gl/m4/gnulib-tool.m4 b/libextra/gl/m4/gnulib-tool.m4 new file mode 100644 index 0000000000..4438d48869 --- /dev/null +++ b/libextra/gl/m4/gnulib-tool.m4 @@ -0,0 +1,57 @@ +# gnulib-tool.m4 serial 2 +dnl Copyright (C) 2004-2005 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl The following macros need not be invoked explicitly. +dnl Invoking them does nothing except to declare default arguments +dnl for "gnulib-tool --import". + +dnl Usage: gl_LOCAL_DIR([DIR]) +AC_DEFUN([gl_LOCAL_DIR], []) + +dnl Usage: gl_MODULES([module1 module2 ...]) +AC_DEFUN([gl_MODULES], []) + +dnl Usage: gl_AVOID([module1 module2 ...]) +AC_DEFUN([gl_AVOID], []) + +dnl Usage: gl_SOURCE_BASE([DIR]) +AC_DEFUN([gl_SOURCE_BASE], []) + +dnl Usage: gl_M4_BASE([DIR]) +AC_DEFUN([gl_M4_BASE], []) + +dnl Usage: gl_PO_BASE([DIR]) +AC_DEFUN([gl_PO_BASE], []) + +dnl Usage: gl_DOC_BASE([DIR]) +AC_DEFUN([gl_DOC_BASE], []) + +dnl Usage: gl_TESTS_BASE([DIR]) +AC_DEFUN([gl_TESTS_BASE], []) + +dnl Usage: gl_WITH_TESTS +AC_DEFUN([gl_WITH_TESTS], []) + +dnl Usage: gl_LIB([LIBNAME]) +AC_DEFUN([gl_LIB], []) + +dnl Usage: gl_LGPL or gl_LGPL([VERSION]) +AC_DEFUN([gl_LGPL], []) + +dnl Usage: gl_MAKEFILE_NAME([FILENAME]) +AC_DEFUN([gl_MAKEFILE_NAME], []) + +dnl Usage: gl_LIBTOOL +AC_DEFUN([gl_LIBTOOL], []) + +dnl Usage: gl_MACRO_PREFIX([PREFIX]) +AC_DEFUN([gl_MACRO_PREFIX], []) + +dnl Usage: gl_PO_DOMAIN([DOMAIN]) +AC_DEFUN([gl_PO_DOMAIN], []) + +dnl Usage: gl_VC_FILES([BOOLEAN]) +AC_DEFUN([gl_VC_FILES], []) diff --git a/libextra/gl/m4/hmac-md5.m4 b/libextra/gl/m4/hmac-md5.m4 new file mode 100644 index 0000000000..729c6bf827 --- /dev/null +++ b/libextra/gl/m4/hmac-md5.m4 @@ -0,0 +1,10 @@ +# hmac-md5.m4 serial 2 +dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_HMAC_MD5], +[ + AC_LIBOBJ([hmac-md5]) +]) diff --git a/libextra/gl/m4/md5.m4 b/libextra/gl/m4/md5.m4 new file mode 100644 index 0000000000..e4d00f3fee --- /dev/null +++ b/libextra/gl/m4/md5.m4 @@ -0,0 +1,15 @@ +# md5.m4 serial 10 +dnl Copyright (C) 2002, 2003, 2004, 2005, 2006, 2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_MD5], +[ + AC_LIBOBJ([md5]) + + dnl Prerequisites of lib/md5.c. + AC_REQUIRE([AC_C_BIGENDIAN]) + AC_REQUIRE([AC_C_INLINE]) + : +]) diff --git a/libextra/gl/m4/memxor.m4 b/libextra/gl/m4/memxor.m4 new file mode 100644 index 0000000000..e14ffbb0f1 --- /dev/null +++ b/libextra/gl/m4/memxor.m4 @@ -0,0 +1,11 @@ +# memxor.m4 serial 3 +dnl Copyright (C) 2006 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_MEMXOR], +[ + AC_LIBOBJ([memxor]) + AC_REQUIRE([AC_C_RESTRICT]) +]) diff --git a/libextra/gl/md5.c b/libextra/gl/md5.c new file mode 100644 index 0000000000..2e03bb900a --- /dev/null +++ b/libextra/gl/md5.c @@ -0,0 +1,455 @@ +/* Functions to compute MD5 message digest of files or memory blocks. + according to the definition of MD5 in RFC 1321 from April 1992. + Copyright (C) 1995,1996,1997,1999,2000,2001,2005,2006,2008 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 3, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. */ + +#include <config.h> + +#include "md5.h" + +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> + +#if USE_UNLOCKED_IO +# include "unlocked-io.h" +#endif + +#ifdef _LIBC +# include <endian.h> +# if __BYTE_ORDER == __BIG_ENDIAN +# define WORDS_BIGENDIAN 1 +# endif +/* We need to keep the namespace clean so define the MD5 function + protected using leading __ . */ +# define md5_init_ctx __md5_init_ctx +# define md5_process_block __md5_process_block +# define md5_process_bytes __md5_process_bytes +# define md5_finish_ctx __md5_finish_ctx +# define md5_read_ctx __md5_read_ctx +# define md5_stream __md5_stream +# define md5_buffer __md5_buffer +#endif + +#ifdef WORDS_BIGENDIAN +# define SWAP(n) \ + (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24)) +#else +# define SWAP(n) (n) +#endif + +#define BLOCKSIZE 4096 +#if BLOCKSIZE % 64 != 0 +# error "invalid BLOCKSIZE" +#endif + +/* This array contains the bytes used to pad the buffer to the next + 64-byte boundary. (RFC 1321, 3.1: Step 1) */ +static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ }; + + +/* Initialize structure containing state of computation. + (RFC 1321, 3.3: Step 3) */ +void +md5_init_ctx (struct md5_ctx *ctx) +{ + ctx->A = 0x67452301; + ctx->B = 0xefcdab89; + ctx->C = 0x98badcfe; + ctx->D = 0x10325476; + + ctx->total[0] = ctx->total[1] = 0; + ctx->buflen = 0; +} + +/* Copy the 4 byte value from v into the memory location pointed to by *cp, + If your architecture allows unaligned access this is equivalent to + * (uint32_t *) cp = v */ +static inline void +set_uint32 (char *cp, uint32_t v) +{ + memcpy (cp, &v, sizeof v); +} + +/* Put result from CTX in first 16 bytes following RESBUF. The result + must be in little endian byte order. */ +void * +md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) +{ + char *r = resbuf; + set_uint32 (r + 0 * sizeof ctx->A, SWAP (ctx->A)); + set_uint32 (r + 1 * sizeof ctx->B, SWAP (ctx->B)); + set_uint32 (r + 2 * sizeof ctx->C, SWAP (ctx->C)); + set_uint32 (r + 3 * sizeof ctx->D, SWAP (ctx->D)); + + return resbuf; +} + +/* Process the remaining bytes in the internal buffer and the usual + prolog according to the standard and write the result to RESBUF. */ +void * +md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) +{ + /* Take yet unprocessed bytes into account. */ + uint32_t bytes = ctx->buflen; + size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4; + + /* Now count remaining bytes. */ + ctx->total[0] += bytes; + if (ctx->total[0] < bytes) + ++ctx->total[1]; + + /* Put the 64-bit file length in *bits* at the end of the buffer. */ + ctx->buffer[size - 2] = SWAP (ctx->total[0] << 3); + ctx->buffer[size - 1] = SWAP ((ctx->total[1] << 3) | (ctx->total[0] >> 29)); + + memcpy (&((char *) ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes); + + /* Process last bytes. */ + md5_process_block (ctx->buffer, size * 4, ctx); + + return md5_read_ctx (ctx, resbuf); +} + +/* Compute MD5 message digest for bytes read from STREAM. The + resulting message digest number will be written into the 16 bytes + beginning at RESBLOCK. */ +int +md5_stream (FILE *stream, void *resblock) +{ + struct md5_ctx ctx; + char buffer[BLOCKSIZE + 72]; + size_t sum; + + /* Initialize the computation context. */ + md5_init_ctx (&ctx); + + /* Iterate over full file contents. */ + while (1) + { + /* We read the file in blocks of BLOCKSIZE bytes. One call of the + computation function processes the whole buffer so that with the + next round of the loop another block can be read. */ + size_t n; + sum = 0; + + /* Read block. Take care for partial reads. */ + while (1) + { + n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream); + + sum += n; + + if (sum == BLOCKSIZE) + break; + + if (n == 0) + { + /* Check for the error flag IFF N == 0, so that we don't + exit the loop after a partial read due to e.g., EAGAIN + or EWOULDBLOCK. */ + if (ferror (stream)) + return 1; + goto process_partial_block; + } + + /* We've read at least one byte, so ignore errors. But always + check for EOF, since feof may be true even though N > 0. + Otherwise, we could end up calling fread after EOF. */ + if (feof (stream)) + goto process_partial_block; + } + + /* Process buffer with BLOCKSIZE bytes. Note that + BLOCKSIZE % 64 == 0 + */ + md5_process_block (buffer, BLOCKSIZE, &ctx); + } + +process_partial_block: + + /* Process any remaining bytes. */ + if (sum > 0) + md5_process_bytes (buffer, sum, &ctx); + + /* Construct result in desired memory. */ + md5_finish_ctx (&ctx, resblock); + return 0; +} + +/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The + result is always in little endian byte order, so that a byte-wise + output yields to the wanted ASCII representation of the message + digest. */ +void * +md5_buffer (const char *buffer, size_t len, void *resblock) +{ + struct md5_ctx ctx; + + /* Initialize the computation context. */ + md5_init_ctx (&ctx); + + /* Process whole buffer but last len % 64 bytes. */ + md5_process_bytes (buffer, len, &ctx); + + /* Put result in desired memory area. */ + return md5_finish_ctx (&ctx, resblock); +} + + +void +md5_process_bytes (const void *buffer, size_t len, struct md5_ctx *ctx) +{ + /* When we already have some bits in our internal buffer concatenate + both inputs first. */ + if (ctx->buflen != 0) + { + size_t left_over = ctx->buflen; + size_t add = 128 - left_over > len ? len : 128 - left_over; + + memcpy (&((char *) ctx->buffer)[left_over], buffer, add); + ctx->buflen += add; + + if (ctx->buflen > 64) + { + md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx); + + ctx->buflen &= 63; + /* The regions in the following copy operation cannot overlap. */ + memcpy (ctx->buffer, + &((char *) ctx->buffer)[(left_over + add) & ~63], + ctx->buflen); + } + + buffer = (const char *) buffer + add; + len -= add; + } + + /* Process available complete blocks. */ + if (len >= 64) + { +#if !_STRING_ARCH_unaligned +# define alignof(type) offsetof (struct { char c; type x; }, x) +# define UNALIGNED_P(p) (((size_t) p) % alignof (uint32_t) != 0) + if (UNALIGNED_P (buffer)) + while (len > 64) + { + md5_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx); + buffer = (const char *) buffer + 64; + len -= 64; + } + else +#endif + { + md5_process_block (buffer, len & ~63, ctx); + buffer = (const char *) buffer + (len & ~63); + len &= 63; + } + } + + /* Move remaining bytes in internal buffer. */ + if (len > 0) + { + size_t left_over = ctx->buflen; + + memcpy (&((char *) ctx->buffer)[left_over], buffer, len); + left_over += len; + if (left_over >= 64) + { + md5_process_block (ctx->buffer, 64, ctx); + left_over -= 64; + memcpy (ctx->buffer, &ctx->buffer[16], left_over); + } + ctx->buflen = left_over; + } +} + + +/* These are the four functions used in the four steps of the MD5 algorithm + and defined in the RFC 1321. The first function is a little bit optimized + (as found in Colin Plumbs public domain implementation). */ +/* #define FF(b, c, d) ((b & c) | (~b & d)) */ +#define FF(b, c, d) (d ^ (b & (c ^ d))) +#define FG(b, c, d) FF (d, b, c) +#define FH(b, c, d) (b ^ c ^ d) +#define FI(b, c, d) (c ^ (b | ~d)) + +/* Process LEN bytes of BUFFER, accumulating context into CTX. + It is assumed that LEN % 64 == 0. */ + +void +md5_process_block (const void *buffer, size_t len, struct md5_ctx *ctx) +{ + uint32_t correct_words[16]; + const uint32_t *words = buffer; + size_t nwords = len / sizeof (uint32_t); + const uint32_t *endp = words + nwords; + uint32_t A = ctx->A; + uint32_t B = ctx->B; + uint32_t C = ctx->C; + uint32_t D = ctx->D; + + /* First increment the byte count. RFC 1321 specifies the possible + length of the file up to 2^64 bits. Here we only compute the + number of bytes. Do a double word increment. */ + ctx->total[0] += len; + if (ctx->total[0] < len) + ++ctx->total[1]; + + /* Process all bytes in the buffer with 64 bytes in each round of + the loop. */ + while (words < endp) + { + uint32_t *cwp = correct_words; + uint32_t A_save = A; + uint32_t B_save = B; + uint32_t C_save = C; + uint32_t D_save = D; + + /* First round: using the given function, the context and a constant + the next context is computed. Because the algorithms processing + unit is a 32-bit word and it is determined to work on words in + little endian byte order we perhaps have to change the byte order + before the computation. To reduce the work for the next steps + we store the swapped words in the array CORRECT_WORDS. */ + +#define OP(a, b, c, d, s, T) \ + do \ + { \ + a += FF (b, c, d) + (*cwp++ = SWAP (*words)) + T; \ + ++words; \ + CYCLIC (a, s); \ + a += b; \ + } \ + while (0) + + /* It is unfortunate that C does not provide an operator for + cyclic rotation. Hope the C compiler is smart enough. */ +#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s))) + + /* Before we start, one word to the strange constants. + They are defined in RFC 1321 as + + T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64 + + Here is an equivalent invocation using Perl: + + perl -e 'foreach(1..64){printf "0x%08x\n", int (4294967296 * abs (sin $_))}' + */ + + /* Round 1. */ + OP (A, B, C, D, 7, 0xd76aa478); + OP (D, A, B, C, 12, 0xe8c7b756); + OP (C, D, A, B, 17, 0x242070db); + OP (B, C, D, A, 22, 0xc1bdceee); + OP (A, B, C, D, 7, 0xf57c0faf); + OP (D, A, B, C, 12, 0x4787c62a); + OP (C, D, A, B, 17, 0xa8304613); + OP (B, C, D, A, 22, 0xfd469501); + OP (A, B, C, D, 7, 0x698098d8); + OP (D, A, B, C, 12, 0x8b44f7af); + OP (C, D, A, B, 17, 0xffff5bb1); + OP (B, C, D, A, 22, 0x895cd7be); + OP (A, B, C, D, 7, 0x6b901122); + OP (D, A, B, C, 12, 0xfd987193); + OP (C, D, A, B, 17, 0xa679438e); + OP (B, C, D, A, 22, 0x49b40821); + + /* For the second to fourth round we have the possibly swapped words + in CORRECT_WORDS. Redefine the macro to take an additional first + argument specifying the function to use. */ +#undef OP +#define OP(f, a, b, c, d, k, s, T) \ + do \ + { \ + a += f (b, c, d) + correct_words[k] + T; \ + CYCLIC (a, s); \ + a += b; \ + } \ + while (0) + + /* Round 2. */ + OP (FG, A, B, C, D, 1, 5, 0xf61e2562); + OP (FG, D, A, B, C, 6, 9, 0xc040b340); + OP (FG, C, D, A, B, 11, 14, 0x265e5a51); + OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa); + OP (FG, A, B, C, D, 5, 5, 0xd62f105d); + OP (FG, D, A, B, C, 10, 9, 0x02441453); + OP (FG, C, D, A, B, 15, 14, 0xd8a1e681); + OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8); + OP (FG, A, B, C, D, 9, 5, 0x21e1cde6); + OP (FG, D, A, B, C, 14, 9, 0xc33707d6); + OP (FG, C, D, A, B, 3, 14, 0xf4d50d87); + OP (FG, B, C, D, A, 8, 20, 0x455a14ed); + OP (FG, A, B, C, D, 13, 5, 0xa9e3e905); + OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8); + OP (FG, C, D, A, B, 7, 14, 0x676f02d9); + OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a); + + /* Round 3. */ + OP (FH, A, B, C, D, 5, 4, 0xfffa3942); + OP (FH, D, A, B, C, 8, 11, 0x8771f681); + OP (FH, C, D, A, B, 11, 16, 0x6d9d6122); + OP (FH, B, C, D, A, 14, 23, 0xfde5380c); + OP (FH, A, B, C, D, 1, 4, 0xa4beea44); + OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9); + OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60); + OP (FH, B, C, D, A, 10, 23, 0xbebfbc70); + OP (FH, A, B, C, D, 13, 4, 0x289b7ec6); + OP (FH, D, A, B, C, 0, 11, 0xeaa127fa); + OP (FH, C, D, A, B, 3, 16, 0xd4ef3085); + OP (FH, B, C, D, A, 6, 23, 0x04881d05); + OP (FH, A, B, C, D, 9, 4, 0xd9d4d039); + OP (FH, D, A, B, C, 12, 11, 0xe6db99e5); + OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8); + OP (FH, B, C, D, A, 2, 23, 0xc4ac5665); + + /* Round 4. */ + OP (FI, A, B, C, D, 0, 6, 0xf4292244); + OP (FI, D, A, B, C, 7, 10, 0x432aff97); + OP (FI, C, D, A, B, 14, 15, 0xab9423a7); + OP (FI, B, C, D, A, 5, 21, 0xfc93a039); + OP (FI, A, B, C, D, 12, 6, 0x655b59c3); + OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92); + OP (FI, C, D, A, B, 10, 15, 0xffeff47d); + OP (FI, B, C, D, A, 1, 21, 0x85845dd1); + OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f); + OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0); + OP (FI, C, D, A, B, 6, 15, 0xa3014314); + OP (FI, B, C, D, A, 13, 21, 0x4e0811a1); + OP (FI, A, B, C, D, 4, 6, 0xf7537e82); + OP (FI, D, A, B, C, 11, 10, 0xbd3af235); + OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb); + OP (FI, B, C, D, A, 9, 21, 0xeb86d391); + + /* Add the starting values of the context. */ + A += A_save; + B += B_save; + C += C_save; + D += D_save; + } + + /* Put checksum in context given as argument. */ + ctx->A = A; + ctx->B = B; + ctx->C = C; + ctx->D = D; +} diff --git a/libextra/gl/md5.h b/libextra/gl/md5.h new file mode 100644 index 0000000000..ffee3e8a46 --- /dev/null +++ b/libextra/gl/md5.h @@ -0,0 +1,118 @@ +/* Declaration of functions and data types used for MD5 sum computing + library functions. + Copyright (C) 1995-1997,1999,2000,2001,2004,2005,2006,2008 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 3, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef _MD5_H +#define _MD5_H 1 + +#include <stdio.h> +#include <stdint.h> + +#define MD5_DIGEST_SIZE 16 +#define MD5_BLOCK_SIZE 64 + +#ifndef __GNUC_PREREQ +# if defined __GNUC__ && defined __GNUC_MINOR__ +# define __GNUC_PREREQ(maj, min) \ + ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) +# else +# define __GNUC_PREREQ(maj, min) 0 +# endif +#endif + +#ifndef __THROW +# if defined __cplusplus && __GNUC_PREREQ (2,8) +# define __THROW throw () +# else +# define __THROW +# endif +#endif + +#ifndef _LIBC +# define __md5_buffer md5_buffer +# define __md5_finish_ctx md5_finish_ctx +# define __md5_init_ctx md5_init_ctx +# define __md5_process_block md5_process_block +# define __md5_process_bytes md5_process_bytes +# define __md5_read_ctx md5_read_ctx +# define __md5_stream md5_stream +#endif + +/* Structure to save state of computation between the single steps. */ +struct md5_ctx +{ + uint32_t A; + uint32_t B; + uint32_t C; + uint32_t D; + + uint32_t total[2]; + uint32_t buflen; + uint32_t buffer[32]; +}; + +/* + * The following three functions are build up the low level used in + * the functions `md5_stream' and `md5_buffer'. + */ + +/* Initialize structure containing state of computation. + (RFC 1321, 3.3: Step 3) */ +extern void __md5_init_ctx (struct md5_ctx *ctx) __THROW; + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is necessary that LEN is a multiple of 64!!! */ +extern void __md5_process_block (const void *buffer, size_t len, + struct md5_ctx *ctx) __THROW; + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is NOT required that LEN is a multiple of 64. */ +extern void __md5_process_bytes (const void *buffer, size_t len, + struct md5_ctx *ctx) __THROW; + +/* Process the remaining bytes in the buffer and put result from CTX + in first 16 bytes following RESBUF. The result is always in little + endian byte order, so that a byte-wise output yields to the wanted + ASCII representation of the message digest. */ +extern void *__md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) __THROW; + + +/* Put result from CTX in first 16 bytes following RESBUF. The result is + always in little endian byte order, so that a byte-wise output yields + to the wanted ASCII representation of the message digest. */ +extern void *__md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) __THROW; + + +/* Compute MD5 message digest for bytes read from STREAM. The + resulting message digest number will be written into the 16 bytes + beginning at RESBLOCK. */ +extern int __md5_stream (FILE *stream, void *resblock) __THROW; + +/* Compute MD5 message digest for LEN bytes beginning at BUFFER. The + result is always in little endian byte order, so that a byte-wise + output yields to the wanted ASCII representation of the message + digest. */ +extern void *__md5_buffer (const char *buffer, size_t len, + void *resblock) __THROW; + +#endif /* md5.h */ diff --git a/libextra/gl/memxor.c b/libextra/gl/memxor.c new file mode 100644 index 0000000000..2d8a2a27a7 --- /dev/null +++ b/libextra/gl/memxor.c @@ -0,0 +1,35 @@ +/* memxor.c -- perform binary exclusive OR operation of two memory blocks. + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Simon Josefsson. The interface was inspired by memxor + in Niels Möller's Nettle. */ + +#include <config.h> + +#include "memxor.h" + +void * +memxor (void *restrict dest, const void *restrict src, size_t n) +{ + char const *s = src; + char *d = dest; + + for (; n > 0; n--) + *d++ ^= *s++; + + return dest; +} diff --git a/libextra/gl/memxor.h b/libextra/gl/memxor.h new file mode 100644 index 0000000000..70e914669e --- /dev/null +++ b/libextra/gl/memxor.h @@ -0,0 +1,31 @@ +/* memxor.h -- perform binary exclusive OR operation on memory blocks. + Copyright (C) 2005 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Simon Josefsson. The interface was inspired by memxor + in Niels Möller's Nettle. */ + +#ifndef MEMXOR_H +# define MEMXOR_H + +#include <stddef.h> + +/* Compute binary exclusive OR of memory areas DEST and SRC, putting + the result in DEST, of length N bytes. Returns a pointer to + DEST. */ +void *memxor (void *restrict dest, const void *restrict src, size_t n); + +#endif /* MEMXOR_H */ |