120 	int ch, bsize, soc;  in main()  local
283 	soc = socket(PF_INET, SOCK_DGRAM, 0);  in main()
284 	if (soc < 0) {  in main()
290 	if (setsockopt(soc, IPPROTO_IP, IP_RECVIF, &on, sizeof (on)))  in main()
295 		if (setsockopt(soc, SOL_SOCKET, SO_RCVBUF,  in main()
305 		trace_loop(argv, soc);  in main()
307 		query_loop(argv, argc, soc);  in main()
329 trace_loop(char *argv[], int soc)  in trace_loop()  argument
343 	if (setsockopt(soc, IPPROTO_UDP, UDP_ANONPRIVBIND,  in trace_loop()
349 	if (bind(soc, (struct sockaddr *)&myaddr, sizeof (myaddr)) < 0) {  in trace_loop()
356 		if (out(*argv++, soc) == 0)  in trace_loop()
365 query_loop(char *argv[], int argc, int soc)  in query_loop()  argument
421 	while (0 > out(*argv++, soc)) {  in query_loop()
435 	FD_SET(soc, &bits);  in query_loop()
439 		cc = select(soc+1, &bits, 0, 0, &delay);  in query_loop()
443 			cc = recvmsg(soc, &msg, 0);  in query_loop()
492 		while (*argv != NULL && 0 > out(*argv++, soc))  in query_loop()
518 out(const char *host, int soc)  in out()  argument
538 	if (sendto(soc, &omsg_buf, omsg_len, 0, res->ai_addr,  in out()