sbappendaddr
if (sbappendaddr(&so->so_rcv, &route_src, m, NULL) == 0) {
if (sbappendaddr(&pcb->so->so_rcv,
if (sbappendaddr(&so->so_rcv, (struct sockaddr *)dst, NULL, m_mtu)
if (sbappendaddr(&s->so_rcv,
if (sbappendaddr(&inp->inp_socket->so_rcv,
if (!sbappendaddr(&kp->kp_socket->so_rcv, &key_src, m, NULL)) {
int sbappendaddr(struct sockbuf *sb, const struct sockaddr *asa,