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Increase use of ptrdiff_t when performing pointer math

pull/687/head
Jeffrey Walton 2018-07-12 09:48:46 -04:00
parent ed143608a8
commit 40d70375a9
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GPG Key ID: B36AB348921B1838
1 changed files with 5 additions and 5 deletions
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10
strciphr.cpp
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@ -59,8 +59,8 @@ void AdditiveCipherTemplate<S>::GenerateBlock(byte *outString, size_t length)
size_t bufferByteSize = RoundUpToMultipleOf(length, bytesPerIteration);
size_t bufferIterations = bufferByteSize / bytesPerIteration;
policy.WriteKeystream(KeystreamBufferEnd()-bufferByteSize, bufferIterations);
memcpy(outString, KeystreamBufferEnd()-bufferByteSize, length);
policy.WriteKeystream(PtrSub(KeystreamBufferEnd(), bufferByteSize), bufferIterations);
memcpy(outString, PtrSub(KeystreamBufferEnd(), bufferByteSize), length);
m_leftOver = bufferByteSize - length;
}
}
@ -115,8 +115,8 @@ void AdditiveCipherTemplate<S>::ProcessData(byte *outString, const byte *inStrin
bufferByteSize = RoundUpToMultipleOf(length, bytesPerIteration);
bufferIterations = bufferByteSize / bytesPerIteration;
policy.WriteKeystream(KeystreamBufferEnd()-bufferByteSize, bufferIterations);
xorbuf(outString, inString, KeystreamBufferEnd()-bufferByteSize, length);
policy.WriteKeystream(PtrSub(KeystreamBufferEnd(), bufferByteSize), bufferIterations);
xorbuf(outString, inString, PtrSub(KeystreamBufferEnd(), bufferByteSize), length);
m_leftOver = bufferByteSize - length;
}
}
@ -141,7 +141,7 @@ void AdditiveCipherTemplate<BASE>::Seek(lword position)
if (position > 0)
{
policy.WriteKeystream(KeystreamBufferEnd()-bytesPerIteration, 1);
policy.WriteKeystream(PtrSub(KeystreamBufferEnd(), bytesPerIteration), 1);
m_leftOver = bytesPerIteration - (unsigned int)position;
}
else