325 	struct addrinfo sentinel;  local
332 	memset(&sentinel, 0, sizeof(sentinel));
333 	cur = &sentinel;
496 	if (sentinel.ai_next)
583 	if (sentinel.ai_next) {
585 		*res = sentinel.ai_next;
598 	if (sentinel.ai_next)
599 		freeaddrinfo(sentinel.ai_next);
697 	struct addrinfo sentinel, *cur;  local
701 	sentinel.ai_next = NULL;
702 	cur = &sentinel;
719 	*res = sentinel.ai_next;
723 	freeaddrinfo(sentinel.ai_next);
740 	struct addrinfo sentinel;  local
744 	sentinel.ai_next = NULL;
745 	cur = &sentinel;
766 	*res = sentinel.ai_next;
770 	if (sentinel.ai_next)
771 		freeaddrinfo(sentinel.ai_next);
787 	struct addrinfo sentinel;  local
792 	sentinel.ai_next = NULL;
793 	cur = &sentinel;
828 	*res = sentinel.ai_next;
833 	if (sentinel.ai_next)
834 		freeaddrinfo(sentinel.ai_next);
1163 	struct addrinfo sentinel, *cur;  local
1176 	memset(&sentinel, 0, sizeof(sentinel));
1177 	cur = &sentinel;
1215 	return(sentinel.ai_next);