118 	int ch, bsize, soc;  in main()  local
281 	soc = socket(PF_INET, SOCK_DGRAM, 0);  in main()
282 	if (soc < 0) {  in main()
288 	if (setsockopt(soc, IPPROTO_IP, IP_RECVIF, &on, sizeof (on)))  in main()
293 		if (setsockopt(soc, SOL_SOCKET, SO_RCVBUF,  in main()
303 		trace_loop(argv, soc);  in main()
305 		query_loop(argv, argc, soc);  in main()
327 trace_loop(char *argv[], int soc)  in trace_loop()  argument
341 	if (setsockopt(soc, IPPROTO_UDP, UDP_ANONPRIVBIND,  in trace_loop()
347 	if (bind(soc, (struct sockaddr *)&myaddr, sizeof (myaddr)) < 0) {  in trace_loop()
354 		if (out(*argv++, soc) == 0)  in trace_loop()
363 query_loop(char *argv[], int argc, int soc)  in query_loop()  argument
419 	while (0 > out(*argv++, soc)) {  in query_loop()
433 	FD_SET(soc, &bits);  in query_loop()
437 		cc = select(soc+1, &bits, 0, 0, &delay);  in query_loop()
441 			cc = recvmsg(soc, &msg, 0);  in query_loop()
490 		while (*argv != NULL && 0 > out(*argv++, soc))  in query_loop()
516 out(const char *host, int soc)  in out()  argument
536 	if (sendto(soc, &omsg_buf, omsg_len, 0, res->ai_addr,  in out()