ip_ctloutput      183 netinet/in_proto.c   udp_input,	0,		udp_ctlinput,	ip_ctloutput,
ip_ctloutput      326 netinet/raw_ip.c 	return (ip_ctloutput(op, so, level, optname, m));
ip_ctloutput      532 netinet/tcp_usrreq.c 			error = ip_ctloutput(op, so, level, optname, mp);