Hey guys,
I wanted to try and help a bit, but I'm not exactly a C wizard or know much about networking code. However, I am an experienced developer, do understand C and have quite a bit of experience with automated testing.
Luckily, according to https://www.torproject.org/getinvolved/volunteer.html.en#unitTesting, it seems you guys could use someone spending some time with the tests :-) I'm sure it's going to take me a while to get my head around the code and the tests, but I can give it a shot and see what happens. How do I get started? Any suggestions?