getsockname (detection of own IP) usage?

[pz1]

Found this in the fixes list of the last release candidates.
I did not find a reference to it in the developers manual. Can you give an example of its usage?
Hope I can use this in one of my userModules to get the ipname for the raspberry localhost?

[PoltoS]

Sonos module uses this - it is needed to announce own IP in the list of "listeners" of UDP notifier on Sonos.

Updated the manual

[pz1]

Sonos module uses this

Thanks. I had been looking for getsockname on github, but got no hits. I now understand why