sntp/libevent/evutil.c

803 	if (hints->ai_socktype == 0 && hints->ai_protocol == 0) {
808 		tmp.ai_socktype = SOCK_STREAM; tmp.ai_protocol = IPPROTO_TCP;
812 		tmp.ai_socktype = SOCK_DGRAM; tmp.ai_protocol = IPPROTO_UDP;
833 	res->ai_protocol = hints->ai_protocol;
920 	if (!hints->ai_protocol && hints->ai_socktype) {
922 			hints->ai_protocol = IPPROTO_UDP;
924 			hints->ai_protocol = IPPROTO_TCP;
928 	if (!hints->ai_socktype && hints->ai_protocol) {
929 		if (hints->ai_protocol == IPPROTO_UDP)
931 		else if (hints->ai_protocol == IPPROTO_TCP)
934 		else if (hints->ai_protocol == IPPROTO_SCTP)
975 	pname = evutil_unparse_protoname(hints->ai_protocol);
1260 	if (ai2 && ai2->ai_protocol == 0) {
1317 		if (ai->ai_socktype || ai->ai_protocol)
1324 		ai->ai_protocol = IPPROTO_TCP;
1326 		ai_new->ai_protocol = IPPROTO_UDP;