se_ctrladdr4
if (sp->s_port != sep->se_ctrladdr4.sin_port) {
sep->se_ctrladdr4.sin_port =
memcpy(&sep->se_ctrladdr4, bind_sa4,
sizeof(sep->se_ctrladdr4));
sep->se_ctrladdr_size = sizeof(sep->se_ctrladdr4);
se2->se_ctrladdr4.sin_port)