Quassel IRC

[08:36:38] <thiago_home> yes: type man 7 socket in your Unix system
[08:36:49] <thiago_home> also useful: man 2 bind, man 2 connect
[08:37:35] <abdb> oh so you mean native unix socket functions, i see
[08:37:44] <thiago_home> yes
[08:37:57] <thiago_home> that's the only way of doing what you want to do
[08:38:57] <thiago_home> so, do it only if you really need it by your protocol's conventions.
[08:39:10] <thiago_home> if you don't need it, if you just would find it nice to have it, scrap that idea
[08:40:41] <thiago_home> create the socket, bind, connect, then call setSocketDescriptor on QTcpSocket.

http://www.win-tux.de/c_028_003.htm

more additional info for windows:

Obtain all IP addresses of local machine
http://www.codeguru.com/csharp/csharp/cs_network/article.php/c6045/

dns - (reverse) lookups:
http://msdn2.microsoft.com/en-us/library/ms682016(VS.85).aspx
(although for visual c++: http://support.microsoft.com/kb/831226/de)

There is currently a PR on GitHub in process that may at least partially resolve this bug.