mirror of https://github.com/moparisthebest/wget
153 lines
3.5 KiB
C
153 lines
3.5 KiB
C
/* General MD5 support.
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Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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Free Software Foundation, Inc.
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This file is part of GNU Wget.
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GNU Wget is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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GNU Wget is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Wget. If not, see <http://www.gnu.org/licenses/>.
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Additional permission under GNU GPL version 3 section 7
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If you modify this program, or any covered work, by linking or
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combining it with the OpenSSL project's OpenSSL library (or a
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modified version of that library), containing parts covered by the
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terms of the OpenSSL or SSLeay licenses, the Free Software Foundation
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grants you additional permission to convey the resulting work.
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Corresponding Source for a non-source form of such a combination
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shall include the source code for the parts of OpenSSL used as well
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as that of the covered work. */
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#include "wget.h"
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#include "gen-md5.h"
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#ifdef HAVE_BUILTIN_MD5
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# include <md5.h>
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typedef struct md5_ctx gen_md5_context_imp;
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#endif
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#ifdef HAVE_SOLARIS_MD5
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# include <md5.h>
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typedef MD5_CTX gen_md5_context_imp;
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#endif
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#ifdef HAVE_OPENSSL_MD5
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# include <openssl/md5.h>
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typedef MD5_CTX gen_md5_context_imp;
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#endif
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struct gen_md5_context {
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gen_md5_context_imp imp;
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};
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/* Originally I planned for these to be macros, but that's very hard
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because some of these MD5 implementations use the same names for
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their types. For example, it is impossible to include <md5.h> and
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<openssl/ssl.h> on Solaris, because the latter includes its own MD5
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implementation, which clashes with <md5.h>. */
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int
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gen_md5_context_size (void)
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{
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return sizeof (struct gen_md5_context);
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}
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void
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gen_md5_init (gen_md5_context *ctx)
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{
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gen_md5_context_imp *ctx_imp = &ctx->imp;
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#ifdef HAVE_BUILTIN_MD5
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md5_init_ctx (ctx_imp);
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#endif
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#ifdef HAVE_SOLARIS_MD5
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MD5Init (ctx_imp);
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#endif
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#ifdef HAVE_OPENSSL_MD5
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MD5_Init (ctx_imp);
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#endif
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}
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void
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gen_md5_update (unsigned const char *buffer, int len, gen_md5_context *ctx)
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{
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gen_md5_context_imp *ctx_imp = &ctx->imp;
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#ifdef HAVE_BUILTIN_MD5
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md5_process_bytes (buffer, len, ctx_imp);
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#endif
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#ifdef HAVE_SOLARIS_MD5
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MD5Update (ctx_imp, (unsigned char *)buffer, len);
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#endif
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#ifdef HAVE_OPENSSL_MD5
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MD5_Update (ctx_imp, buffer, len);
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#endif
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}
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void
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gen_md5_finish (gen_md5_context *ctx, unsigned char *result)
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{
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gen_md5_context_imp *ctx_imp = &ctx->imp;
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#ifdef HAVE_BUILTIN_MD5
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md5_finish_ctx (ctx_imp, result);
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#endif
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#ifdef HAVE_SOLARIS_MD5
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MD5Final (result, ctx_imp);
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#endif
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#ifdef HAVE_OPENSSL_MD5
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MD5_Final (result, ctx_imp);
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#endif
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}
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#if 0
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/* A debugging function for checking whether an MD5 library works. */
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#include "gen-md5.h"
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char *
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debug_test_md5 (char *buf)
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{
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unsigned char raw[16];
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static char res[33];
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unsigned char *p1;
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char *p2;
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int cnt;
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ALLOCA_MD5_CONTEXT (ctx);
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gen_md5_init (ctx);
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gen_md5_update ((unsigned char *)buf, strlen (buf), ctx);
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gen_md5_finish (ctx, raw);
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p1 = raw;
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p2 = res;
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cnt = 16;
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while (cnt--)
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{
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*p2++ = XNUM_TO_digit (*p1 >> 4);
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*p2++ = XNUM_TO_digit (*p1 & 0xf);
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++p1;
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}
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*p2 = '\0';
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return res;
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}
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#endif
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