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LWS-Import: Avoid access to empty string token 

- Fix invalid access to string pointer when string token is empty
- closes https://github.com/assimp/assimp/issues/4222
pull/4283/head
Kim Kulling 2021-12-22 21:08:28 +01:00 committed by GitHub
parent 7ec52e9e02
commit 635153b3a4
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1 changed files with 5 additions and 0 deletions
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5
code/AssetLib/LWS/LWSLoader.cpp
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@ -537,6 +537,11 @@ void LWSImporter::InternReadFile(const std::string &pFile, aiScene *pScene, IOSy
// get file format version and print to log // get file format version and print to log
++it; ++it;
if ((*it).tokens[0].empty()) {
ASSIMP_LOG_ERROR("Invalid LWS file detectedm abort import.");
return;
}
unsigned int version = strtoul10((*it).tokens[0].c_str()); unsigned int version = strtoul10((*it).tokens[0].c_str());
ASSIMP_LOG_INFO("LWS file format version is ", (*it).tokens[0]); ASSIMP_LOG_INFO("LWS file format version is ", (*it).tokens[0]);
first = 0.; first = 0.;