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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: biginteger.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_xmlsecurity.hxx"
#include <xmlsecurity/biginteger.hxx>
#include <sal/types.h>
//For reasons that escape me, this is what xmlsec does when size_t is not 4
#if SAL_TYPES_SIZEOFPOINTER != 4
# define XMLSEC_NO_SIZE_T
#endif
#include <xmlsec/xmlsec.h>
#include <xmlsec/bn.h>
#include <com/sun/star/uno/Sequence.hxx>
using namespace ::com::sun::star::uno ;
using ::rtl::OUString ;
Sequence< sal_Int8 > numericStringToBigInteger ( OUString numeral )
{
if( numeral.getStr() != NULL )
{
xmlChar* chNumeral ;
const xmlSecByte* bnInteger ;
xmlSecSize length ;
xmlSecBn bn ;
rtl::OString onumeral = rtl::OUStringToOString( numeral , RTL_TEXTENCODING_ASCII_US ) ;
chNumeral = xmlStrndup( ( const xmlChar* )onumeral.getStr(), ( int )onumeral.getLength() ) ;
if( xmlSecBnInitialize( &bn, 0 ) < 0 ) {
xmlFree( chNumeral ) ;
return Sequence< sal_Int8 >();
}
if( xmlSecBnFromDecString( &bn, chNumeral ) < 0 ) {
xmlFree( chNumeral ) ;
xmlSecBnFinalize( &bn ) ;
return Sequence< sal_Int8 >();
}
xmlFree( chNumeral ) ;
length = xmlSecBnGetSize( &bn ) ;
if( length <= 0 ) {
xmlSecBnFinalize( &bn ) ;
return Sequence< sal_Int8 >();
}
bnInteger = xmlSecBnGetData( &bn ) ;
if( bnInteger == NULL ) {
xmlSecBnFinalize( &bn ) ;
return Sequence< sal_Int8 >();
}
Sequence< sal_Int8 > integer( length ) ;
for( unsigned int i = 0 ; i < length ; i ++ )
{
integer[i] = *( bnInteger + i ) ;
}
xmlSecBnFinalize( &bn ) ;
return integer ;
}
return Sequence< sal_Int8 >();
}
OUString bigIntegerToNumericString ( Sequence< sal_Int8 > integer )
{
OUString aRet ;
if( integer.getLength() ) {
xmlSecBn bn ;
xmlChar* chNumeral ;
if( xmlSecBnInitialize( &bn, 0 ) < 0 )
return aRet ;
if( xmlSecBnSetData( &bn, ( const unsigned char* )&integer[0], integer.getLength() ) < 0 ) {
xmlSecBnFinalize( &bn ) ;
return aRet ;
}
chNumeral = xmlSecBnToDecString( &bn ) ;
if( chNumeral == NULL ) {
xmlSecBnFinalize( &bn ) ;
return aRet ;
}
aRet = OUString::createFromAscii( ( const char* )chNumeral ) ;
xmlSecBnFinalize( &bn ) ;
xmlFree( chNumeral ) ;
}
return aRet ;
}
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