570 	int fdout, ptyfd, ttyfd, ptymaster;  in do_exec_pty()  local
576 	ttyfd = s->ttyfd;  in do_exec_pty()
587 		close(ttyfd);  in do_exec_pty()
594 		close(ttyfd);  in do_exec_pty()
606 		close(ttyfd);  in do_exec_pty()
619 		pty_make_controlling_tty(&ttyfd, s->tty);  in do_exec_pty()
622 		if (dup2(ttyfd, 0) == -1)  in do_exec_pty()
624 		if (dup2(ttyfd, 1) == -1)  in do_exec_pty()
626 		if (dup2(ttyfd, 2) == -1)  in do_exec_pty()
630 		close(ttyfd);  in do_exec_pty()
653 	close(ttyfd);  in do_exec_pty()
703 	if (s->ttyfd != -1) {  in do_exec()
721 	else if (s->ttyfd == -1) {  in do_exec()
729 	if (s->ttyfd != -1)  in do_exec()
1187 	if (s->ttyfd != -1)  in do_setup_env()
1452 	if (s->ttyfd != -1) {  in do_pwchange()
1548 	session_setup_sia(pw, s->ttyfd == -1 ? NULL : s->tty);  in do_child()
1739 	sessions[id].ttyfd = -1;  in session_unused()
1826 		if (s->used && s->ttyfd != -1 && strcmp(s->tty, tty) == 0) {  in session_by_tty()
1915 	if (s->ttyfd != -1) {  in session_pty_req()
1934 	if (!mm_pty_allocate(&s->ptyfd, &s->ttyfd, s->tty, sizeof(s->tty))) {  in session_pty_req()
1938 		s->ttyfd = -1;  in session_pty_req()
1944 	ssh_tty_parse_modes(ssh, s->ttyfd);  in session_pty_req()
2281 	if (s->ttyfd == -1)  in session_pty_cleanup2()
2304 	s->ttyfd = -1;  in session_pty_cleanup2()
2452 	if (s->ttyfd != -1)  in session_close()
2482 	if (s->ttyfd != -1)  in session_close_by_pid()
2503 		debug_f("channel %d: has child, ttyfd %d", id, s->ttyfd);  in session_close_by_channel()
2509 		if (s->ttyfd != -1)  in session_close_by_channel()
2554 		if (s->used && s->ttyfd != -1) {  in session_tty_list()