Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <xmlsecurity/biginteger.hxx>
      22             : 
      23             : #include <sal/types.h>
      24             : //For reasons that escape me, this is what xmlsec does when size_t is not 4
      25             : #if SAL_TYPES_SIZEOFPOINTER != 4
      26             : #    define XMLSEC_NO_SIZE_T
      27             : #endif
      28             : #include <xmlsec/xmlsec.h>
      29             : #include <xmlsec/bn.h>
      30             : #include <com/sun/star/uno/Sequence.hxx>
      31             : 
      32             : using namespace ::com::sun::star::uno ;
      33             : using ::rtl::OUString ;
      34             : 
      35           0 : Sequence< sal_Int8 > numericStringToBigInteger ( OUString numeral )
      36             : {
      37           0 :     if( numeral.getStr() != NULL )
      38             :     {
      39             :         xmlChar* chNumeral ;
      40             :         const xmlSecByte* bnInteger ;
      41             :         xmlSecSize length ;
      42             :         xmlSecBn bn ;
      43             : 
      44           0 :         rtl::OString onumeral = rtl::OUStringToOString( numeral , RTL_TEXTENCODING_ASCII_US ) ;
      45             : 
      46           0 :         chNumeral = xmlStrndup( ( const xmlChar* )onumeral.getStr(), ( int )onumeral.getLength() ) ;
      47             : 
      48           0 :         if( xmlSecBnInitialize( &bn, 0 ) < 0 ) {
      49           0 :             xmlFree( chNumeral ) ;
      50           0 :             return Sequence< sal_Int8 >();
      51             :         }
      52             : 
      53           0 :         if( xmlSecBnFromDecString( &bn, chNumeral ) < 0 ) {
      54           0 :             xmlFree( chNumeral ) ;
      55           0 :             xmlSecBnFinalize( &bn ) ;
      56           0 :             return Sequence< sal_Int8 >();
      57             :         }
      58             : 
      59           0 :         xmlFree( chNumeral ) ;
      60             : 
      61           0 :         length = xmlSecBnGetSize( &bn ) ;
      62           0 :         if( length <= 0 ) {
      63           0 :             xmlSecBnFinalize( &bn ) ;
      64           0 :             return Sequence< sal_Int8 >();
      65             :         }
      66             : 
      67           0 :         bnInteger = xmlSecBnGetData( &bn ) ;
      68           0 :         if( bnInteger == NULL ) {
      69           0 :             xmlSecBnFinalize( &bn ) ;
      70           0 :             return Sequence< sal_Int8 >();
      71             :         }
      72             : 
      73           0 :         Sequence< sal_Int8 > integer( length ) ;
      74           0 :         for( unsigned int i = 0 ; i < length ; i ++ )
      75             :         {
      76           0 :             integer[i] = *( bnInteger + i ) ;
      77             :         }
      78             : 
      79           0 :         xmlSecBnFinalize( &bn ) ;
      80           0 :         return integer ;
      81             :     }
      82             : 
      83           0 :     return Sequence< sal_Int8 >();
      84             : }
      85             : 
      86           0 : OUString bigIntegerToNumericString ( Sequence< sal_Int8 > integer )
      87             : {
      88           0 :     OUString aRet ;
      89             : 
      90           0 :     if( integer.getLength() ) {
      91             :         xmlSecBn bn ;
      92             :         xmlChar* chNumeral ;
      93             : 
      94           0 :         if( xmlSecBnInitialize( &bn, 0 ) < 0 )
      95             :             return aRet ;
      96             : 
      97           0 :         if( xmlSecBnSetData( &bn, ( const unsigned char* )&integer[0], integer.getLength() ) < 0 ) {
      98           0 :             xmlSecBnFinalize( &bn ) ;
      99             :             return aRet ;
     100             :         }
     101             : 
     102           0 :         chNumeral = xmlSecBnToDecString( &bn ) ;
     103           0 :         if( chNumeral == NULL ) {
     104           0 :             xmlSecBnFinalize( &bn ) ;
     105             :             return aRet ;
     106             :         }
     107             : 
     108           0 :         aRet = OUString::createFromAscii( ( const char* )chNumeral ) ;
     109             : 
     110           0 :         xmlSecBnFinalize( &bn ) ;
     111           0 :         xmlFree( chNumeral ) ;
     112             :     }
     113             : 
     114           0 :     return aRet ;
     115             : }
     116             : 
     117             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */