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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: md5.cxx,v $
*
* $Revision: 1.6 $
*
* last change: $Author: obo $ $Date: 2006-09-17 00:48:44 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_tools.hxx"
#include "md5.hxx"
#include <cstddef>
#include <stdio.h>
#include <string.hxx>
#ifdef WNT
#define FILE_OPEN_READ "rb"
#else
#define FILE_OPEN_READ "r"
#endif
rtlDigestError calc_md5_checksum( const char *filename, ByteString &aChecksum )
{
sal_uInt8 checksum[RTL_DIGEST_LENGTH_MD5];
rtlDigestError error = rtl_Digest_E_None;
FILE *fp = fopen( filename, FILE_OPEN_READ );
if ( fp )
{
rtlDigest digest = rtl_digest_createMD5();
if ( digest )
{
size_t nBytesRead;
sal_uInt8 buffer[0x1000];
while ( rtl_Digest_E_None == error &&
0 != (nBytesRead = fread( buffer, 1, sizeof(buffer), fp )) )
{
error = rtl_digest_updateMD5( digest, buffer, nBytesRead );
}
if ( rtl_Digest_E_None == error )
{
error = rtl_digest_getMD5( digest, checksum, sizeof(checksum) );
}
rtl_digest_destroyMD5( digest );
for ( std::size_t i = 0; i < sizeof(checksum); i++ )
{
if ( checksum[i] < 16 )
aChecksum.Append( "0" );
aChecksum += ByteString::CreateFromInt32( checksum[i], 16 );
}
}
fclose( fp );
}
else
error = rtl_Digest_E_Unknown;
return error;
}
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