403 int tty_establish_ppp (int tty_fd)  in tty_establish_ppp()  argument
410     if (ioctl(tty_fd, TIOCEXCL, 0) < 0) {  in tty_establish_ppp()
430     if (ioctl(tty_fd, TIOCSETD, &ppp_disc) < 0) {  in tty_establish_ppp()
437     ret_fd = generic_establish_ppp(tty_fd);  in tty_establish_ppp()
447 	if (ioctl(tty_fd, TIOCSETD, &tty_disc) < 0 && !ok_error(errno))  in tty_establish_ppp()
555 void tty_disestablish_ppp(int tty_fd)  in tty_disestablish_ppp()  argument
561 	if (tcflush(tty_fd, TCIOFLUSH) < 0)  in tty_disestablish_ppp()
569 	if (ioctl(tty_fd, TIOCSETD, &tty_disc) < 0) {  in tty_disestablish_ppp()
574 	if (ioctl(tty_fd, TIOCNXCL, 0) < 0) {  in tty_disestablish_ppp()
580 	if (initfdflags != -1 && fcntl(tty_fd, F_SETFL, initfdflags) < 0) {  in tty_disestablish_ppp()
588     generic_disestablish_ppp(tty_fd);  in tty_disestablish_ppp()
932 void set_up_tty(int tty_fd, int local)  in set_up_tty()  argument
937     setdtr(tty_fd, 1);  in set_up_tty()
938     if (tcgetattr(tty_fd, &tios) < 0) {  in set_up_tty()
996     while (tcsetattr(tty_fd, TCSAFLUSH, &tios) < 0 && !ok_error(errno))  in set_up_tty()
1010 void setdtr (int tty_fd, int on)  in setdtr()  argument
1014     ioctl(tty_fd, (on ? TIOCMBIS : TIOCMBIC), &modembits);  in setdtr()
1022 void restore_tty (int tty_fd)  in restore_tty()  argument
1035 	if (tcsetattr(tty_fd, TCSAFLUSH, &inittermios) < 0) {  in restore_tty()