/***************************************************************************** * vlc_md5.h: MD5 hash ***************************************************************************** * Copyright (C) 2004-2005 the VideoLAN team * $Id: d05126980ffacc7e6778cdc35a74339374386292 $ * * Authors: Jon Lech Johansen <jon-vl@nanocrew.net> *          Sam Hocevar <sam@zoy.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/#ifndef VLC_MD5_H# define VLC_MD5_H/** * \file * This file defines functions and structures for handling md5 checksums *//***************************************************************************** * md5_s: MD5 message structure ***************************************************************************** * This structure stores the static information needed to compute an MD5 * hash. It has an extra data buffer to allow non-aligned writes. *****************************************************************************/struct md5_s{    uint64_t i_bits;      /* Total written bits */    uint32_t p_digest[4]; /* The MD5 digest */    uint32_t p_data[16];  /* Buffer to cache non-aligned writes */};VLC_EXPORT(void, InitMD5, ( struct md5_s * ) );VLC_EXPORT(void, AddMD5, ( struct md5_s *, const void *, size_t ) );VLC_EXPORT(void, EndMD5, ( struct md5_s * ) );/** * Returns a char representation of the md5 hash, as shown by UNIX md5 or * md5sum tools. */static inline char * psz_md5_hash( struct md5_s *md5_s ){    char *psz = malloc( 33 ); /* md5 string is 32 bytes + NULL character */    if( !psz ) return NULL;    int i;    for ( i = 0; i < 4; i++ )    {        sprintf( &psz[8*i], "%02x%02x%02x%02x",            md5_s->p_digest[i] & 0xff,            ( md5_s->p_digest[i] >> 8 ) & 0xff,            ( md5_s->p_digest[i] >> 16 ) & 0xff,            md5_s->p_digest[i] >> 24        );    }    psz[32] = '\0';    return psz;}#endif