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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: md5.cxx,v $
* $Revision: 1.8 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_tools.hxx"
#include "md5.hxx"
#include <cstddef>
#include <stdio.h>
#include <tools/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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