1 /* Declaration of functions and data types used for MD5 sum computing
3 Copyright (C) 1995-1997, 1999-2001, 2004-2006, 2008-2017 Free
4 Software Foundation, Inc.
5 This file is part of the GNU C Library.
7 This program is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 3, or (at your option) any
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, see <http://www.gnu.org/licenses/>. */
27 # include <openssl/md5.h>
30 #define MD5_DIGEST_SIZE 16
31 #define MD5_BLOCK_SIZE 64
34 # if defined __GNUC__ && defined __GNUC_MINOR__
35 # define __GNUC_PREREQ(maj, min) \
36 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
38 # define __GNUC_PREREQ(maj, min) 0
43 # if defined __cplusplus && __GNUC_PREREQ (2,8)
44 # define __THROW throw ()
51 # define __md5_buffer md5_buffer
52 # define __md5_finish_ctx md5_finish_ctx
53 # define __md5_init_ctx md5_init_ctx
54 # define __md5_process_block md5_process_block
55 # define __md5_process_bytes md5_process_bytes
56 # define __md5_read_ctx md5_read_ctx
57 # define __md5_stream md5_stream
65 # define GL_OPENSSL_NAME 5
66 # include "gl_openssl.h"
68 /* Structure to save state of computation between the single steps. */
82 * The following three functions are build up the low level used in
83 * the functions 'md5_stream' and 'md5_buffer'.
86 /* Initialize structure containing state of computation.
87 (RFC 1321, 3.3: Step 3) */
88 extern void __md5_init_ctx (struct md5_ctx
*ctx
) __THROW
;
90 /* Starting with the result of former calls of this function (or the
91 initialization function update the context for the next LEN bytes
93 It is necessary that LEN is a multiple of 64!!! */
94 extern void __md5_process_block (const void *buffer
, size_t len
,
95 struct md5_ctx
*ctx
) __THROW
;
97 /* Starting with the result of former calls of this function (or the
98 initialization function update the context for the next LEN bytes
100 It is NOT required that LEN is a multiple of 64. */
101 extern void __md5_process_bytes (const void *buffer
, size_t len
,
102 struct md5_ctx
*ctx
) __THROW
;
104 /* Process the remaining bytes in the buffer and put result from CTX
105 in first 16 bytes following RESBUF. The result is always in little
106 endian byte order, so that a byte-wise output yields to the wanted
107 ASCII representation of the message digest. */
108 extern void *__md5_finish_ctx (struct md5_ctx
*ctx
, void *resbuf
) __THROW
;
111 /* Put result from CTX in first 16 bytes following RESBUF. The result is
112 always in little endian byte order, so that a byte-wise output yields
113 to the wanted ASCII representation of the message digest. */
114 extern void *__md5_read_ctx (const struct md5_ctx
*ctx
, void *resbuf
) __THROW
;
117 /* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
118 result is always in little endian byte order, so that a byte-wise
119 output yields to the wanted ASCII representation of the message
121 extern void *__md5_buffer (const char *buffer
, size_t len
,
122 void *resblock
) __THROW
;
125 /* Compute MD5 message digest for bytes read from STREAM. The
126 resulting message digest number will be written into the 16 bytes
127 beginning at RESBLOCK. */
128 extern int __md5_stream (FILE *stream
, void *resblock
) __THROW
;