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SymmetricCipherStream: Add error handling when reading from the device.

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This commit is contained in:
Felix Geyer 2015-07-20 19:54:18 +02:00
parent fcb5deff0a
commit 61503a8047
1 changed files with 16 additions and 2 deletions
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18
src/streams/SymmetricCipherStream.cpp
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@ -115,11 +115,25 @@ qint64 SymmetricCipherStream::readData(char* data, qint64 maxSize)
bool SymmetricCipherStream::readBlock()
{
QByteArray newData;
if (m_bufferFilling) {
m_buffer.append(m_baseDevice->read(m_cipher->blockSize() - m_buffer.size()));
newData.resize(m_cipher->blockSize() - m_buffer.size());
}
else {
m_buffer = m_baseDevice->read(m_cipher->blockSize());
m_buffer.clear();
newData.resize(m_cipher->blockSize());
}
int readResult = m_baseDevice->read(newData.data(), newData.size());
if (readResult == -1) {
m_error = true;
setErrorString(m_baseDevice->errorString());
return false;
}
else {
m_buffer.append(newData.left(readResult));
}
if (m_buffer.size() != m_cipher->blockSize()) {