lib/libalpm/md5.h

   1 /*
   2  *  RFC 1321 compliant MD5 implementation
   3  *
   4  *  Copyright (C) 2006-2010, Brainspark B.V.
   5  *
   6  *  This file is part of PolarSSL (http://www.polarssl.org)
   7  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
   8  *
   9  *  All rights reserved.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24 #ifndef _MD5_H
  25 #define _MD5_H
  26
  27 #include <string.h>
  28
  29 /**
  30  * \brief          MD5 context structure
  31  */
  32 typedef struct
  33 {
  34     unsigned long total[2];     /*!< number of bytes processed  */
  35     unsigned long state[4];     /*!< intermediate digest state  */
  36     unsigned char buffer[64];   /*!< data block being processed */
  37 }
  38 md5_context;
  39
  40 /**
  41  * \brief          Output = MD5( input buffer )
  42  *
  43  * \param input    buffer holding the  data
  44  * \param ilen     length of the input data
  45  * \param output   MD5 checksum result
  46  */
  47 void md5( const unsigned char *input, size_t ilen, unsigned char output[16] );
  48
  49 /**
  50  * \brief          Output = MD5( file contents )
  51  *
  52  * \param path     input file name
  53  * \param output   MD5 checksum result
  54  *
  55  * \return         0 if successful, 1 if fopen failed,
  56  *                 or 2 if fread failed
  57  */
  58 int md5_file( const char *path, unsigned char output[16] );
  59
  60 #endif /* md5.h */