Fixed compiler warnings in sresolv: signedness mismatches.
Fixed compiler warnings in sresolv: signedness mismatches.

darcs-hash:20061218115537-7659e-2052f1ab47d6d9c3ed5cc6537348e3fe29c09e4f.gz

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