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author | Geoff Keating <geoffk@cygnus.com> | 2000-03-04 00:47:31 +0000 |
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committer | Geoff Keating <geoffk@cygnus.com> | 2000-03-04 00:47:31 +0000 |
commit | b11f59548803413101b72d28f42cbe997d64a144 (patch) | |
tree | 4898a19a9169c9cedd0250e0e7590dbc6058b189 /crypt/md5.h | |
parent | e3d53b06cc8520c23a010909ab2f0bde93f2abfc (diff) | |
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* Makeconfig (rpath-dirs): Add crypt.
(all-subdirs): Remove md5crypt.
* crypt/sysdeps/unix/crypt.c: Move to crypt/.
* crypt/sysdeps/unix/crypt-entry.c: Move to crypt/.
* sysdeps/generic/crypt-entry.c: Delete.
* crypt/sysdeps/unix/crypt.h: Move to crypt/.
* sysdeps/generic/crypt.h: Delete.
* crypt/sysdeps/unix/crypt-private.h: Move to crypt/.
* crypt/sysdeps/unix/crypt_util.c: Move to crypt/.
* crypt/sysdeps/unix/des_impl.c: Move to sunrpc/.
* sysdeps/generic/des_impl.c: Delete.
* crypt/sysdeps/unix/ufc-crypt.h: Move to crypt/.
* crypt/sysdeps: Delete.
* crypt/crypt_util.c: Don't use `patchlevel.h'.
* md5-crypt/Versions: Move to crypt/.
* md5-crypt/md5-crypt.c: Move to crypt/.
* md5-crypt/md5.c: Move to crypt/.
* md5-crypt/md5c-test.c: Move to crypt/.
* md5-crypt/md5test.c: Move to crypt/.
* md5-crypt: Delete.
* crypt/Makefile: Adjust for new structure.
2000-03-03 Geoff Keating <geoffk@cygnus.com>
* Makeconfig (rpath-dirs): Add crypt.
(all-subdirs): Remove md5crypt.
* crypt/sysdeps/unix/crypt.c: Move to crypt/.
* crypt/sysdeps/unix/crypt-entry.c: Move to crypt/.
* sysdeps/generic/crypt-entry.c: Delete.
* crypt/sysdeps/unix/crypt.h: Move to crypt/.
* sysdeps/generic/crypt.h: Delete.
* crypt/sysdeps/unix/crypt-private.h: Move to crypt/.
* crypt/sysdeps/unix/crypt_util.c: Move to crypt/.
* crypt/sysdeps/unix/des_impl.c: Move to sunrpc/.
* sysdeps/generic/des_impl.c: Delete.
* crypt/sysdeps/unix/ufc-crypt.h: Move to crypt/.
* crypt/sysdeps: Delete.
* crypt/crypt_util.c: Don't use `patchlevel.h'.
* md5-crypt/Versions: Move to crypt/.
* md5-crypt/md5-crypt.c: Move to crypt/.
* md5-crypt/md5.c: Move to crypt/.
* md5-crypt/md5c-test.c: Move to crypt/.
* md5-crypt/md5test.c: Move to crypt/.
* md5-crypt: Delete.
* crypt/Makefile: Adjust for new structure.
Diffstat (limited to 'crypt/md5.h')
-rw-r--r-- | crypt/md5.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/crypt/md5.h b/crypt/md5.h new file mode 100644 index 0000000000..fbc2bdbf93 --- /dev/null +++ b/crypt/md5.h @@ -0,0 +1,147 @@ +/* Declaration of functions and data types used for MD5 sum computing + library functions. + Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _MD5_H +#define _MD5_H 1 + +#include <stdio.h> + +#if defined HAVE_LIMITS_H || _LIBC +# include <limits.h> +#endif + +/* The following contortions are an attempt to use the C preprocessor + to determine an unsigned integral type that is 32 bits wide. An + alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but + doing that would require that the configure script compile and *run* + the resulting executable. Locally running cross-compiled executables + is usually not possible. */ + +#ifdef _LIBC +# include <sys/types.h> +typedef u_int32_t md5_uint32; +#else +# if defined __STDC__ && __STDC__ +# define UINT_MAX_32_BITS 4294967295U +# else +# define UINT_MAX_32_BITS 0xFFFFFFFF +# endif + +/* If UINT_MAX isn't defined, assume it's a 32-bit type. + This should be valid for all systems GNU cares about because + that doesn't include 16-bit systems, and only modern systems + (that certainly have <limits.h>) have 64+-bit integral types. */ + +# ifndef UINT_MAX +# define UINT_MAX UINT_MAX_32_BITS +# endif + +# if UINT_MAX == UINT_MAX_32_BITS + typedef unsigned int md5_uint32; +# else +# if USHRT_MAX == UINT_MAX_32_BITS + typedef unsigned short md5_uint32; +# else +# if ULONG_MAX == UINT_MAX_32_BITS + typedef unsigned long md5_uint32; +# else + /* The following line is intended to evoke an error. + Using #error is not portable enough. */ + "Cannot determine unsigned 32-bit data type." +# endif +# endif +# endif +#endif + +#undef __P +#if defined (__STDC__) && __STDC__ +# define __P(x) x +#else +# define __P(x) () +#endif + +/* Structure to save state of computation between the single steps. */ +struct md5_ctx +{ + md5_uint32 A; + md5_uint32 B; + md5_uint32 C; + md5_uint32 D; + + md5_uint32 total[2]; + md5_uint32 buflen; + char buffer[128]; +}; + +/* + * 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 __P ((struct md5_ctx *ctx)); + +/* 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 __P ((const void *buffer, size_t len, + struct md5_ctx *ctx)); + +/* 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 __P ((const void *buffer, size_t len, + struct md5_ctx *ctx)); + +/* 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. + + IMPORTANT: On some systems it is required that RESBUF is correctly + aligned for a 32 bits value. */ +extern void *__md5_finish_ctx __P ((struct md5_ctx *ctx, void *resbuf)); + + +/* 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. + + IMPORTANT: On some systems it is required that RESBUF is correctly + aligned for a 32 bits value. */ +extern void *__md5_read_ctx __P ((const struct md5_ctx *ctx, void *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. */ +extern int __md5_stream __P ((FILE *stream, void *resblock)); + +/* 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 __P ((const char *buffer, size_t len, + void *resblock)); + +#endif /* md5.h */ |