[PyQt] Crash when reading negative size of data from QUdpSocket

[Phil Thompson]

On Tue, 24 Jun 2008 19:16:47 +0300, "İsmail Dönmez" <ismail at namtrac.org>
wrote:
> Hi,
> 
> Using latest sip/PyQt snapshots with Qt4.4, see following:
> 
>>>> from PyQt4.QtNetwork import QHostAddress, QUdpSocket
>>>> socket = QUdpSocket()
>>>> success = socket.bind(QHostAddress("0.0.0.0"), 5555)
>>>> success
> True
>>>> socket.readData(-1)
> terminate called after throwing an instance of 'std::bad_alloc'
>   what():  std::bad_alloc
> 
> Simply returning None when a negative size is given is a better idea.

Tonight's snapshot will raise a ValueError exception in this situation.

Phil