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QSslSocket: Don't call 'transmit' in unencrypted mode 

At the same time I'll add a generic protection against being called in
unprotected mode in the schannel backend (openssl already has it in a
different form).

Pick-to: 5.15 6.0
Change-Id: I97c1be6239c27e306de0af7ad568fbcfde09da71
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
bb10
Mårten Nordheim 2020-12-04 12:01:03 +01:00
parent e4395f3f68
commit f8badeda72
2 changed files with 4 additions and 1 deletions
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2
src/network/ssl/qsslsocket.cpp
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@ -2326,7 +2326,7 @@ void QSslSocketPrivate::_q_errorSlot(QAbstractSocket::SocketError error)
qCDebug(lcSsl) << "\terrorString =" << q->errorString();
#endif
// this moves encrypted bytes from plain socket into our buffer
if (plainSocket->bytesAvailable()) {
if (plainSocket->bytesAvailable() && mode != QSslSocket::UnencryptedMode) {
qint64 tmpReadBufferMaxSize = readBufferMaxSize;
readBufferMaxSize = 0; // reset temporarily so the plain sockets completely drained drained
transmit();

3
src/network/ssl/qsslsocket_schannel.cpp
View File

@ -1325,6 +1325,9 @@ void QSslSocketBackendPrivate::transmit()
{
Q_Q(QSslSocket);
if (mode == QSslSocket::UnencryptedMode)
return; // This function should not have been called
// Can happen if called through QSslSocket::abort->QSslSocket::close->QSslSocket::flush->here
if (plainSocket->state() == QAbstractSocket::SocketState::UnconnectedState)
return;