1 /* Declaration of functions and data types used for MD5 sum computing
2 library functions.
3 Copyright (C) 1995-1997,1999,2000,2001,2004,2005,2006
4 Free Software Foundation, Inc.
5 This file is part of the GNU C Library.
6
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 2, or (at your option) any
10 later version.
11
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.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software Foundation,
19 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
gray_env_get(struct gray_env * env,const char * name)20
21 #ifndef _MAILUTILS_MD5_H
22 #define _MAILUTILS_MD5_H 1
23
24 #include <stdio.h>
25 #include <stdint.h>
26
27 #define MD5_DIGEST_SIZE 16
28 #define MD5_BLOCK_SIZE 64
29
30 #ifndef __GNUC_PREREQ
31 # if defined __GNUC__ && defined __GNUC_MINOR__
32 # define __GNUC_PREREQ(maj, min) \
33 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
34 # else
35 # define __GNUC_PREREQ(maj, min) 0
36 # endif
37 #endif
38
39 #ifndef __THROW
40 # if defined __cplusplus && __GNUC_PREREQ (2,8)
41 # define __THROW throw ()
42 # else
43 # define __THROW
44 # endif
45 #endif
46
47 /* Rename to avoid name clashes */
48 #define __md5_buffer gpam_md5_buffer
49 #define __md5_finish_ctx gpam_md5_finish_ctx
50 #define __md5_init_ctx gpam_md5_init_ctx
51 #define __md5_process_block gpam_md5_process_block
52 #define __md5_process_bytes gpam_md5_process_bytes
53 #define __md5_read_ctx gpam_md5_read_ctx
54 #define __md5_stream gpam_md5_stream
55
56 #define md5_ctx gpam_md5_ctx
57
58 /* Structure to save state of computation between the single steps. */
59 struct md5_ctx
60 {
61 uint32_t A;
62 uint32_t B;
63 uint32_t C;
64 uint32_t D;
65
66 uint32_t total[2];
67 uint32_t buflen;
68 uint32_t buffer[32];
69 };
70
71 /*
72 * The following three functions are build up the low level used in
73 * the functions `md5_stream' and `md5_buffer'.
74 */
75
76 /* Initialize structure containing state of computation.
77 (RFC 1321, 3.3: Step 3) */
78 extern void __md5_init_ctx (struct md5_ctx *ctx) __THROW;
79
gray_env_read_tr(const char * file_name,struct gray_env ** penv,char ** trmap)80 /* Starting with the result of former calls of this function (or the
81 initialization function update the context for the next LEN bytes
82 starting at BUFFER.
83 It is necessary that LEN is a multiple of 64!!! */
84 extern void __md5_process_block (const void *buffer, size_t len,
85 struct md5_ctx *ctx) __THROW;
86
87 /* Starting with the result of former calls of this function (or the
88 initialization function update the context for the next LEN bytes
89 starting at BUFFER.
90 It is NOT required that LEN is a multiple of 64. */
91 extern void __md5_process_bytes (const void *buffer, size_t len,
92 struct md5_ctx *ctx) __THROW;
93
94 /* Process the remaining bytes in the buffer and put result from CTX
95 in first 16 bytes following RESBUF. The result is always in little
96 endian byte order, so that a byte-wise output yields to the wanted
97 ASCII representation of the message digest.
98
99 IMPORTANT: On some systems, RESBUF must be aligned to a 32-bit
100 boundary. */
101 extern void *__md5_finish_ctx (struct md5_ctx *ctx, void *resbuf) __THROW;
102
103
104 /* Put result from CTX in first 16 bytes following RESBUF. The result is
105 always in little endian byte order, so that a byte-wise output yields
106 to the wanted ASCII representation of the message digest.
107
108 IMPORTANT: On some systems, RESBUF must be aligned to a 32-bit
109 boundary. */
110 extern void *__md5_read_ctx (const struct md5_ctx *ctx, void *resbuf) __THROW;
111
112
113 /* Compute MD5 message digest for bytes read from STREAM. The
114 resulting message digest number will be written into the 16 bytes
115 beginning at RESBLOCK. */
116 extern int __md5_stream (FILE *stream, void *resblock) __THROW;
117
118 /* Compute MD5 message digest for LEN bytes beginning at BUFFER. The
119 result is always in little endian byte order, so that a byte-wise
120 output yields to the wanted ASCII representation of the message
121 digest. */
122 extern void *__md5_buffer (const char *buffer, size_t len,
123 void *resblock) __THROW;
124
125 #endif /* md5.h */
126