check_sres_sip.c: added test cases for bad DNS server, timeout
check_sres_sip.c: added test cases for bad DNS server, timeout

Ignore-this: f14a52817f3612c0b8b776761a12ef3e

darcs-hash:20090225191119-db55f-33d67d9b57d825d0ff8028fd6726054be557935a.gz

erdincay/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,unispeech/sofia-sip,BelledonneCommunications/sofia-sip,jart/sofia-sip,jart/sofia-sip,BelledonneCommunications/sofia-sip,BelledonneCommunications/sofia-sip,jart/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,xhook/sofia-sip