server_setup: Undefined error: 0

[XeonG]

This is on OSX

[rofl0r]

seems the the listen ip address you specified couldn't be resolved.

[XeonG]

It looked like this ./microsocks -i 0.0.0.0 -p 7070 etc .. which is what works fine on a linux server, but on a local OSX crapple laptop it doesn't work all..

[rofl0r]

-i 0.0.0.0 is the default so you dont have to specify it at all. try whether that works. if not, try 127.0.0.1