Function ngd_attach

freebsd/netgraph/ng_socket.c:390–398

***************************************************************/

static int
ngd_attach(struct socket *so, int proto, struct thread *td)
{
	struct ngpcb *const pcbp = sotongpcb(so);

	if (pcbp != NULL)
		return (EISCONN);
	return (ng_attach_data(so));
}

static void
ngd_detach(struct socket *so)