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BUG: UIPstream: sending zero sized string accesses beyond buffer. Fixes #676

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This commit is contained in:
mattijs
2017-12-20 15:28:20 +00:00
parent 276cef6aba
commit feb11e4a39
1 changed files with 8 additions and 1 deletions
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9
src/OpenFOAM/db/IOstreams/Pstreams/UIPstream.C
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@ -106,7 +106,14 @@ inline Foam::Istream& Foam::UIPstream::readStringFromBuffer(std::string& str)
size_t len; size_t len;
readFromBuffer(len); readFromBuffer(len);
str.assign(&externalBuf_[externalBufPosition_], len); if (len == 0)
{
str.clear();
}
else
{
str.assign(&externalBuf_[externalBufPosition_], len);
}
externalBufPosition_ += len; externalBufPosition_ += len;
checkEof(); checkEof();