61 struct	ttystate ttystate;		/* tty info */  variable
257 	fix_term = ttystate.ttyflags;
343 	if (ttystate.ttyflags & TTY_CBREAK_ON) {  in cleanup()
346 	if (ttystate.ttyflags & TTY_ECHO_OFF) {  in cleanup()
444 	if (ttystate.ttyflags == 0) {  in echo_off()
445 		if ((ttystate.ttyfile = open("/dev/tty",  in echo_off()
454 	if (tcgetattr(ttystate.ttyfile, &ttystate.ttystate) < 0) {  in echo_off()
458 	ttystate.ttystate.c_lflag &= ~ECHO;  in echo_off()
459 	if (tcsetattr(ttystate.ttyfile, TCSANOW, &ttystate.ttystate) < 0) {  in echo_off()
468 	ttystate.ttyflags |= TTY_ECHO_OFF;  in echo_off()
481 	ttystate.ttystate.c_lflag |= ECHO;  in echo_on()
482 	if (tcsetattr(ttystate.ttyfile, TCSANOW, &ttystate.ttystate) < 0) {  in echo_on()
489 	ttystate.ttyflags &= ~TTY_ECHO_OFF;  in echo_on()
490 	if (ttystate.ttyflags == 0) {  in echo_on()
491 		(void) close(ttystate.ttyfile);  in echo_on()
505 	if (ttystate.ttyflags == 0) {  in charmode_on()
506 		if ((ttystate.ttyfile = open("/dev/tty",  in charmode_on()
515 	if (tcgetattr(ttystate.ttyfile, &ttystate.ttystate) < 0) {  in charmode_on()
519 	ttystate.vmin = ttystate.ttystate.c_cc[VMIN];  in charmode_on()
520 	ttystate.vtime = ttystate.ttystate.c_cc[VTIME];  in charmode_on()
522 	ttystate.ttystate.c_lflag &= ~ICANON;  in charmode_on()
523 	ttystate.ttystate.c_cc[VMIN] = 1;  in charmode_on()
524 	ttystate.ttystate.c_cc[VTIME] = 0;  in charmode_on()
526 	if (tcsetattr(ttystate.ttyfile, TCSANOW, &ttystate.ttystate) < 0) {  in charmode_on()
535 	ttystate.ttyflags |= TTY_CBREAK_ON;  in charmode_on()
549 	ttystate.ttystate.c_lflag |= ICANON;  in charmode_off()
550 	ttystate.ttystate.c_cc[VMIN] = ttystate.vmin;  in charmode_off()
551 	ttystate.ttystate.c_cc[VTIME] = ttystate.vtime;  in charmode_off()
552 	if (tcsetattr(ttystate.ttyfile, TCSANOW, &ttystate.ttystate) < 0) {  in charmode_off()
559 	ttystate.ttyflags &= ~TTY_CBREAK_ON;  in charmode_off()
560 	if (ttystate.ttyflags == 0) {  in charmode_off()
561 		(void) close(ttystate.ttyfile);  in charmode_off()