1 /* General MD5 support.
2 Copyright (C) 2001 Free Software Foundation, Inc.
4 This file is part of GNU Wget.
6 GNU Wget is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 GNU Wget is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Wget. If not, see <http://www.gnu.org/licenses/>.
19 In addition, as a special exception, the Free Software Foundation
20 gives permission to link the code of its release of Wget with the
21 OpenSSL project's "OpenSSL" library (or with modified versions of it
22 that use the same license as the "OpenSSL" library), and distribute
23 the linked executables. You must obey the GNU General Public License
24 in all respects for all of the code used other than "OpenSSL". If you
25 modify this file, you may extend this exception to your version of the
26 file, but you are not obligated to do so. If you do not wish to do
27 so, delete this exception statement from your version. */
34 #ifdef HAVE_BUILTIN_MD5
36 typedef struct md5_ctx gen_md5_context_imp;
39 #ifdef HAVE_SOLARIS_MD5
41 typedef MD5_CTX gen_md5_context_imp;
44 #ifdef HAVE_OPENSSL_MD5
45 # include <openssl/md5.h>
46 typedef MD5_CTX gen_md5_context_imp;
49 struct gen_md5_context {
50 gen_md5_context_imp imp;
53 /* Originally I planned for these to be macros, but that's very hard
54 because some of these MD5 implementations use the same names for
55 their types. For example, it is impossible to include <md5.h> and
56 <openssl/ssl.h> on Solaris, because the latter includes its own MD5
57 implementation, which clashes with <md5.h>. */
60 gen_md5_context_size (void)
62 return sizeof (struct gen_md5_context);
66 gen_md5_init (gen_md5_context *ctx)
68 gen_md5_context_imp *ctx_imp = &ctx->imp;
70 #ifdef HAVE_BUILTIN_MD5
71 md5_init_ctx (ctx_imp);
74 #ifdef HAVE_SOLARIS_MD5
78 #ifdef HAVE_OPENSSL_MD5
84 gen_md5_update (unsigned const char *buffer, int len, gen_md5_context *ctx)
86 gen_md5_context_imp *ctx_imp = &ctx->imp;
88 #ifdef HAVE_BUILTIN_MD5
89 md5_process_bytes (buffer, len, ctx_imp);
92 #ifdef HAVE_SOLARIS_MD5
93 MD5Update (ctx_imp, (unsigned char *)buffer, len);
96 #ifdef HAVE_OPENSSL_MD5
97 MD5_Update (ctx_imp, buffer, len);
102 gen_md5_finish (gen_md5_context *ctx, unsigned char *result)
104 gen_md5_context_imp *ctx_imp = &ctx->imp;
106 #ifdef HAVE_BUILTIN_MD5
107 md5_finish_ctx (ctx_imp, result);
110 #ifdef HAVE_SOLARIS_MD5
111 MD5Final (result, ctx_imp);
114 #ifdef HAVE_OPENSSL_MD5
115 MD5_Final (result, ctx_imp);
120 /* A debugging function for checking whether an MD5 library works. */
125 debug_test_md5 (char *buf)
127 unsigned char raw[16];
132 ALLOCA_MD5_CONTEXT (ctx);
135 gen_md5_update ((unsigned char *)buf, strlen (buf), ctx);
136 gen_md5_finish (ctx, raw);
143 *p2++ = XNUM_TO_digit (*p1 >> 4);
144 *p2++ = XNUM_TO_digit (*p1 & 0xf);