rem: int raw_attach(struct socket *so, int proto)
add: static int raw_attach(struct socket *so, int proto)
context: int raw_attach(struct socket *so, int proto){	struct rawcb *rp = sotorawcb(so);	int error;		if (rp == NULL)		return ENOBUFS;	if ((error = soreserve(so, raw_sendspace, raw_recvspace)))		return error;	rp->rcb_socket = so;	rp->rcb_proto.sp_family = so->so_proto->pr_domain->dom_family;	rp->rcb_proto.sp_protocol = proto;	rp->rcb_prev = rawcb.rcb_next->rcb_prev;	rp->rcb_next = rawcb.rcb_next;	rawcb.rcb_next->rcb_prev = rp;	rawcb.rcb_next = rp;		return 0;}