tag	line	file	source code
ENOPROTOOPT	48	net/inet/icmp.c	{ ENOPROTOOPT,  1 },
ENOPROTOOPT	541	net/inet/sock.c	return(-ENOPROTOOPT);
ENOPROTOOPT	579	net/inet/sock.c	return(-ENOPROTOOPT);
ENOPROTOOPT	640	net/inet/sock.c	return(-ENOPROTOOPT);