1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_xmlsecurity.hxx" 26 27 #include <xmlsecurity/biginteger.hxx> 28 29 #include <sal/types.h> 30 //For reasons that escape me, this is what xmlsec does when size_t is not 4 31 #if SAL_TYPES_SIZEOFPOINTER != 4 32 # define XMLSEC_NO_SIZE_T 33 #endif 34 #include <xmlsec/xmlsec.h> 35 #include <xmlsec/bn.h> 36 #include <com/sun/star/uno/Sequence.hxx> 37 38 using namespace ::com::sun::star::uno ; 39 using ::rtl::OUString ; 40 41 Sequence< sal_Int8 > numericStringToBigInteger ( OUString numeral ) 42 { 43 if( numeral.getStr() != NULL ) 44 { 45 xmlChar* chNumeral ; 46 const xmlSecByte* bnInteger ; 47 xmlSecSize length ; 48 xmlSecBn bn ; 49 50 rtl::OString onumeral = rtl::OUStringToOString( numeral , RTL_TEXTENCODING_ASCII_US ) ; 51 52 chNumeral = xmlStrndup( ( const xmlChar* )onumeral.getStr(), ( int )onumeral.getLength() ) ; 53 54 if( xmlSecBnInitialize( &bn, 0 ) < 0 ) { 55 xmlFree( chNumeral ) ; 56 return Sequence< sal_Int8 >(); 57 } 58 59 if( xmlSecBnFromDecString( &bn, chNumeral ) < 0 ) { 60 xmlFree( chNumeral ) ; 61 xmlSecBnFinalize( &bn ) ; 62 return Sequence< sal_Int8 >(); 63 } 64 65 xmlFree( chNumeral ) ; 66 67 length = xmlSecBnGetSize( &bn ) ; 68 if( length <= 0 ) { 69 xmlSecBnFinalize( &bn ) ; 70 return Sequence< sal_Int8 >(); 71 } 72 73 bnInteger = xmlSecBnGetData( &bn ) ; 74 if( bnInteger == NULL ) { 75 xmlSecBnFinalize( &bn ) ; 76 return Sequence< sal_Int8 >(); 77 } 78 79 Sequence< sal_Int8 > integer( length ) ; 80 for( unsigned int i = 0 ; i < length ; i ++ ) 81 { 82 integer[i] = *( bnInteger + i ) ; 83 } 84 85 xmlSecBnFinalize( &bn ) ; 86 return integer ; 87 } 88 89 return Sequence< sal_Int8 >(); 90 } 91 92 OUString bigIntegerToNumericString ( Sequence< sal_Int8 > integer ) 93 { 94 OUString aRet ; 95 96 if( integer.getLength() ) { 97 xmlSecBn bn ; 98 xmlChar* chNumeral ; 99 100 if( xmlSecBnInitialize( &bn, 0 ) < 0 ) 101 return aRet ; 102 103 if( xmlSecBnSetData( &bn, ( const unsigned char* )&integer[0], integer.getLength() ) < 0 ) { 104 xmlSecBnFinalize( &bn ) ; 105 return aRet ; 106 } 107 108 chNumeral = xmlSecBnToDecString( &bn ) ; 109 if( chNumeral == NULL ) { 110 xmlSecBnFinalize( &bn ) ; 111 return aRet ; 112 } 113 114 aRet = OUString::createFromAscii( ( const char* )chNumeral ) ; 115 116 xmlSecBnFinalize( &bn ) ; 117 xmlFree( chNumeral ) ; 118 } 119 120 return aRet ; 121 } 122 123