92 int icmp_sock;			/* socket file descriptor */  variable
143 	icmp_sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP);  in main()
144 	if (icmp_sock < 0) {  in main()
146 		icmp_sock = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);  in main()
163 			    (setsockopt(icmp_sock, IPPROTO_IP, IP_TOS,  in main()
423 	if (icmp_sock < 0) {  in main()
434 		if (ioctl(icmp_sock, SIOCGIFINDEX, &ifr) < 0) {  in main()
458 		if (setsockopt(icmp_sock, SOL_IP, IP_MTU_DISCOVER, &pmtudisc, sizeof(pmtudisc)) == -1) {  in main()
465 	    bind(icmp_sock, (struct sockaddr*)&source, sizeof(source)) == -1) {  in main()
478 		if (setsockopt(icmp_sock, SOL_RAW, ICMP_FILTER, (char*)&filt, sizeof(filt)) == -1)  in main()
483 	if (setsockopt(icmp_sock, SOL_IP, IP_RECVERR, (char *)&hold, sizeof(hold)))  in main()
486 		if (setsockopt(icmp_sock, SOL_IP, IP_RECVTTL, (char *)&hold, sizeof(hold)))  in main()
488 		if (setsockopt(icmp_sock, SOL_IP, IP_RETOPTS, (char *)&hold, sizeof(hold)))  in main()
500 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_OPTIONS, rspace, sizeof(rspace)) < 0) {  in main()
517 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_OPTIONS, rspace, rspace[1]) < 0) {  in main()
519 			if (setsockopt(icmp_sock, IPPROTO_IP, IP_OPTIONS, rspace, rspace[1]) < 0) {  in main()
537 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_OPTIONS, rspace, 4 + nroute*4) < 0) {  in main()
548 	sock_setbufs(icmp_sock, hold);  in main()
551 		if (setsockopt(icmp_sock, SOL_SOCKET, SO_BROADCAST,  in main()
560 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_MULTICAST_LOOP,  in main()
568 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_MULTICAST_TTL,  in main()
573 		if (setsockopt(icmp_sock, IPPROTO_IP, IP_TTL,  in main()
602 	setup(icmp_sock);  in main()
604 	main_loop(icmp_sock, packet, packlen);  in main()
632 	res = recvmsg(icmp_sock, &msg, MSG_ERRQUEUE|MSG_DONTWAIT);  in receive_error_msg()
688 			if (setsockopt(icmp_sock, SOL_RAW, ICMP_FILTER, (char*)&filt, sizeof(filt)) == -1)  in receive_error_msg()
762 		i = sendmsg(icmp_sock, &m, confirm);  in send_probe()
1397 	if (setsockopt(icmp_sock, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)))  in install_filter()