Swiftdiff options
| -rw-r--r-- | Swiften/Parser/ExpatParser.cpp | 8 | ||||
| -rw-r--r-- | Swiften/Parser/LibXMLParser.cpp | 16 |
2 files changed, 15 insertions, 9 deletions
diff --git a/Swiften/Parser/ExpatParser.cpp b/Swiften/Parser/ExpatParser.cpp index 77d959c..8415c42 100644 --- a/Swiften/Parser/ExpatParser.cpp +++ b/Swiften/Parser/ExpatParser.cpp @@ -7,13 +7,12 @@ #include <Swiften/Parser/ExpatParser.h> #include <cassert> +#include <limits> #include <memory> #include <string> #include <expat.h> -#include <boost/numeric/conversion/cast.hpp> - #include <Swiften/Base/String.h> #include <Swiften/Parser/XMLParserClient.h> @@ -84,7 +83,10 @@ ExpatParser::~ExpatParser() { } bool ExpatParser::parse(const std::string& data) { - bool success = XML_Parse(p->parser_, data.c_str(), boost::numeric_cast<int>(data.size()), false) == XML_STATUS_OK; + if (data.size() > std::numeric_limits<int>::max()) { + return false; + } + bool success = XML_Parse(p->parser_, data.c_str(), static_cast<int>(data.size()), false) == XML_STATUS_OK; /*if (!success) { std::cout << "ERROR: " << XML_ErrorString(XML_GetErrorCode(p->parser_)) << " while parsing " << data << std::endl; }*/ diff --git a/Swiften/Parser/LibXMLParser.cpp b/Swiften/Parser/LibXMLParser.cpp index be0a92d..5bd3737 100644 --- a/Swiften/Parser/LibXMLParser.cpp +++ b/Swiften/Parser/LibXMLParser.cpp @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2016 Isode Limited. + * Copyright (c) 2010-2018 Isode Limited. * All rights reserved. * See the COPYING file for more information. */ @@ -8,11 +8,10 @@ #include <cassert> #include <cstring> +#include <limits> #include <memory> #include <string> -#include <boost/numeric/conversion/cast.hpp> - #include <libxml/parser.h> #include <Swiften/Base/Log.h> @@ -36,11 +35,12 @@ static void handleStartElement(void* parser, const xmlChar* name, const xmlChar* if (attributes[i+2]) { attributeNS = std::string(reinterpret_cast<const char*>(attributes[i+2])); } + assert(attributes[i+4] >= attributes[i+3]); attributeValues.addAttribute( std::string(reinterpret_cast<const char*>(attributes[i])), attributeNS, std::string(reinterpret_cast<const char*>(attributes[i+3]), - boost::numeric_cast<size_t>(attributes[i+4]-attributes[i+3]))); + static_cast<size_t>(attributes[i+4]-attributes[i+3]))); } static_cast<XMLParser*>(parser)->getClient()->handleStartElement(reinterpret_cast<const char*>(name), (xmlns ? reinterpret_cast<const char*>(xmlns) : std::string()), attributeValues); } @@ -50,7 +50,8 @@ static void handleEndElement(void *parser, const xmlChar* name, const xmlChar*, } static void handleCharacterData(void* parser, const xmlChar* data, int len) { - static_cast<XMLParser*>(parser)->getClient()->handleCharacterData(std::string(reinterpret_cast<const char*>(data), boost::numeric_cast<size_t>(len))); + assert(len >= 0); + static_cast<XMLParser*>(parser)->getClient()->handleCharacterData(std::string(reinterpret_cast<const char*>(data), static_cast<size_t>(len))); } static void handleError(void*, const char* /*m*/, ... ) { @@ -94,7 +95,10 @@ LibXMLParser::~LibXMLParser() { } bool LibXMLParser::parse(const std::string& data) { - if (xmlParseChunk(p->context_, data.c_str(), boost::numeric_cast<int>(data.size()), false) == XML_ERR_OK) { + if (data.size() > std::numeric_limits<int>::max()) { + return false; + } + if (xmlParseChunk(p->context_, data.c_str(), static_cast<int>(data.size()), false) == XML_ERR_OK) { return true; } xmlError* error = xmlCtxtGetLastError(p->context_); |