1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2004-2005 the VideoLAN team
7 * Authors: Jon Lech Johansen <jon-vl@nanocrew.net>
8 * Sam Hocevar <sam@zoy.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
28 /*****************************************************************************
29 * md5_s: MD5 message structure
30 *****************************************************************************
31 * This structure stores the static information needed to compute an MD5
32 * hash. It has an extra data buffer to allow non-aligned writes.
33 *****************************************************************************/
36 uint64_t i_bits; /* Total written bits */
37 uint32_t p_digest[4]; /* The MD5 digest */
38 uint32_t p_data[16]; /* Buffer to cache non-aligned writes */
41 VLC_EXPORT(void, InitMD5, ( struct md5_s * ) );
42 VLC_EXPORT(void, AddMD5, ( struct md5_s *, const void *, size_t ) );
43 VLC_EXPORT(void, EndMD5, ( struct md5_s * ) );
46 * Returns a char representation of the md5 hash, as shown by UNIX md5 or
49 static inline char * psz_md5_hash( struct md5_s *md5_s )
51 char *psz = malloc( 33 ); /* md5 string is 32 bytes + NULL character */
52 if( !psz ) return NULL;
55 for ( i = 0; i < 4; i++ )
57 sprintf( &psz[8*i], "%02x%02x%02x%02x",
58 md5_s->p_digest[i] & 0xff,
59 ( md5_s->p_digest[i] >> 8 ) & 0xff,
60 ( md5_s->p_digest[i] >> 16 ) & 0xff,
61 md5_s->p_digest[i] >> 24