RUTSCHLE Yves wrote:

Argh. After removing all my debugging printf's, it turns out it doesn't seem to work after all. Which, if it has to do with signals and timing, is only partly surprising.

Ok, nothing to do with any of that. Deep inside OpenSSL, there is a call to gmtime_r. Deep somewhere in hell (I hope), someone decided that LynxOS' gmtime_r functions would have its arguments *reversed*. REVERSED. I guess they were going for SIXPO complience. So that call would write rubbish in the stack, hence no returning from the call and segfault instead. So, nothing to do with stunnel after all. Thanks for the support anyway! :) Y. - TGIFriday