[Twisted-Python] _Win32Waker

Aron Bierbaum aronbierbaum at gmail.com
Tue Apr 21 15:22:17 EDT 2009

I have been able to reproduce the same results with a simple C++
example. I have been unable to find any specific reason why binding to
"" and later calling getsockname would result in a different
address of "" I did find one reference [1] that said that using
a port number of 0 will cause the operating system to listen on all
interfaces and that calling getsockname may not return a valid address
until the socket is fully connected. It might be best to use the
original patch that I sumbitted that only uses the port value from the
getsockname call, and uses the correct "" IP address
regardless of the reported address. If the address returned is really
undefined, then this could be causing the problem.


[1] http://www.sockets.com/winsock.htm#Bind

[2] Change the following line in posixbase.py



client.connect(('', server.getsockname()[1]))

On Mon, Apr 20, 2009 at 7:06 PM, Jean-Paul Calderone <exarkun at divmod.com> wrote:
> On Mon, 20 Apr 2009 18:16:39 -0500, Aron Bierbaum <aronbierbaum at gmail.com>
> wrote:
>> I have looked into this a little more and have noticed that if I
>> specify a port number instead of "0" it will always bind to the
>> correct "" address. I still don't know why this only occurs
>> on certain Windows machines. I will hopefully get more time to look
>> into this in the next couple of days.
> Hmm.  Interesting.  Perhaps we could bind a different port, then.
> I look forward to results from your further investigations.
> Jean-Paul
> _______________________________________________
> Twisted-Python mailing list
> Twisted-Python at twistedmatrix.com
> http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python

More information about the Twisted-Python mailing list