tag	line	file	source code
ENOPROTOOPT	52	net/inet/icmp.c	{ ENOPROTOOPT,  1 },  /*  ICMP_PROT_UNREACH  */
ENOPROTOOPT	502	net/inet/sock.c	return(-ENOPROTOOPT);
ENOPROTOOPT	568	net/inet/sock.c	return(-ENOPROTOOPT);
ENOPROTOOPT	657	net/inet/sock.c	return(-ENOPROTOOPT);