so_pru_send
so_pru_send(so, flags, m, addr0, control, td);
error = so_pru_send(so, pru_flags, top, addr, control, td);
error = so_pru_send(so, pru_flags, top,
error = so_pru_send(so, pru_flags, top, addr, control, td);
error = so_pru_send(so, 0, m, NULL, NULL, td);
error = so_pru_send(so, 0, mheader, NULL, NULL, td);
int so_pru_send (struct socket *so, int flags, struct mbuf *m,
return so_pru_send(so, flags, m, addr, control, td);
error = so_pru_send(so, 0, m, NULL, NULL, td);
error = so_pru_send(so, 0, m, nmp->nm_nam, NULL, td);