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Diffstat (limited to 'xmlsecurity/source/xmlsec/biginteger.cxx')
-rw-r--r-- | xmlsecurity/source/xmlsec/biginteger.cxx | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/xmlsecurity/source/xmlsec/biginteger.cxx b/xmlsecurity/source/xmlsec/biginteger.cxx new file mode 100644 index 000000000000..e3947671ae38 --- /dev/null +++ b/xmlsecurity/source/xmlsec/biginteger.cxx @@ -0,0 +1,126 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * 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 ; +} + |