pru_sendoob
error = pru_sendoob(sosp, o, NULL, NULL);
error = pru_sendoob(so, top, addr, control);
.pru_sendoob = tcp_sendoob,
.pru_sendoob = tcp_sendoob,
if (so->so_proto->pr_usrreqs->pru_sendoob)
return (*so->so_proto->pr_usrreqs->pru_sendoob)(so,
int (*pru_sendoob)(struct socket *, struct mbuf *, struct mbuf *,