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imgproc(hdr): fix bounds check in HdrDecoder::checkSignature()

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This commit is contained in:
Alexander Alekhin 2018-01-01 13:12:21 +00:00
parent 30373d2566
commit 4ca89db22d
1 changed files with 8 additions and 4 deletions
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12
modules/imgcodecs/src/grfmt_hdr.cpp
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@ -101,10 +101,14 @@ bool HdrDecoder::readData(Mat& _img)
bool HdrDecoder::checkSignature( const String& signature ) const bool HdrDecoder::checkSignature( const String& signature ) const
{ {
if(signature.size() >= m_signature.size() && if (signature.size() >= m_signature.size() &&
(!memcmp(signature.c_str(), m_signature.c_str(), m_signature.size()) || 0 == memcmp(signature.c_str(), m_signature.c_str(), m_signature.size())
!memcmp(signature.c_str(), m_signature_alt.c_str(), m_signature_alt.size()))) )
return true; return true;
if (signature.size() >= m_signature_alt.size() &&
0 == memcmp(signature.c_str(), m_signature_alt.c_str(), m_signature_alt.size())
)
return true;
return false; return false;
} }