test_tport.c: fixed type-punning warning.
test_tport.c: fixed type-punning warning.

darcs-hash:20080201151309-65a35-a7645dd74807f2ae70e977f7ec9e68441907d750.gz

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