153 static int sloop;				/* Socket file descriptor/loopback */  variable
263 	if ((sloop = prog_socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)) < 0)  in main()
270 	if (prog_shutdown(sloop, SHUT_RD) == -1)  in main()
535 		if (prog_setsockopt(sloop, SOL_SOCKET, SO_DEBUG,  in main()
540 		if (prog_setsockopt(sloop, SOL_SOCKET, SO_DONTROUTE,  in main()
635 	if (prog_setsockopt(sloop, IPPROTO_IP, IP_IPSEC_POLICY,  in main()
665 	(void)prog_setsockopt(sloop, IPPROTO_IP, IP_AUTH_TRANS_LEVEL,  in main()
668 	(void)prog_setsockopt(sloop, IPPROTO_IP, IP_AUTH_LEVEL,  in main()
671 	(void)prog_setsockopt(sloop, IPPROTO_IP, IP_ESP_TRANS_LEVEL,  in main()
917 		if (prog_setsockopt(sloop, IPPROTO_IP, IP_HDRINCL,  in pinger()
920 		if (prog_sendto(sloop, (char *) &opack_icmp,  in pinger()
934 		if (prog_setsockopt(sloop, IPPROTO_IP, IP_HDRINCL,  in pinger()