sslsplit

I wouldn't use Crashlytics. I use ACRA (https://github.com/ACRA/acra) for a project that has around 30k active installs. I also wouldn't use Crashlytics due to a study that we've conducted in the last 3 months on 200 of the most used apps in Germany. We have collected real network traffic with a setup consisting of Wireshark and sslsplit (https://github.com/droe/sslsplit). We have discovered that Crashlytics will send GPS location data alongside bug reports. Probably it tries to collect as much data as possible.

Overall, very well written proxy. Just few nitpicks from browsing the code: https://github.com/droe/sslsplit/blob/master/pxyconn.c#L991-... there is no guarantee that a space comes after the colon. These comparisons are better off with 1 character less. https://github.com/droe/sslsplit/blob/master/pxythrmgr.c#L12... pthread_mutex_init can fail.