Check for empty socket address

[andig]

Fix #92

[clue]

@andig Thanks for taking the time to file this PR! 👍

Unfortunately, the PR does not contain any documentation or tests, so it's a bit unclear what you're trying to achieve from the snippet you've posted.

May I ask you provide a simple gist of what you're trying to achieve, i.e. how can this be reproduced and how can we be sure this issue is actually resolved and we do not introduce any regressions in the future? Thanks!

[andig]

May I ask you provide a simple gist of what you're trying to achieve, i.e. how can this be reproduced and how can we be sure this issue is actually resolved and we do not introduce any regressions in the future? Thanks!

This happens from inside our application. Unfortunately I cannot produce a simple gist. Looking at lxr I believe returning the NULL string is what PHP does- under which condition whatsoever.

I've added comment to the code what the check is supposed to do. There was no parseAddress test before and I have unfortunately no clue how to write one- sorry.

[andig]

Thanks for fixing. Now- for sake of documentation- I understand that the observed behaviour happens with UNIX domain sockets.