hup               437 dev/ic/z8530tty.c 	int hup;
hup               448 dev/ic/z8530tty.c 	hup = tp->t_cflag & HUPCL;
hup               450 dev/ic/z8530tty.c 		hup = 0;
hup               451 dev/ic/z8530tty.c 	if (hup) {