178 static int ppp_fd = -1;		/* fd which is set to PPP discipline */  variable
269 	ppp_fd = new_fd;  in set_ppp_fd()
277 		return !hungup && ppp_fd >= 0;  in still_ppp()
278 	if (!hungup || ppp_fd == slave_fd)  in still_ppp()
444 	modify_flags(ppp_fd, SC_RCVB | SC_LOGB,  in tty_establish_ppp()
541     return ppp_fd;  in generic_establish_ppp()
600 	close(ppp_fd);  in generic_disestablish_ppp()
601 	ppp_fd = -1;  in generic_disestablish_ppp()
669 	if (ioctl(ppp_fd, PPPIOCCONNECT, &ifunit) < 0)  in cfg_bundle()
715 	if (ioctl(ppp_fd, PPPIOCCONNECT, &ifnum) < 0)  in bundle_attach()
747 	if (ioctl(ppp_fd, PPPIOCGFLAGS, (caddr_t) &x) == 0) {  in clean_check()
1049     int fd = ppp_fd;  in output()
1130     if (ppp_fd >= 0) {  in read_packet()
1131 	nr = read(ppp_fd, buf, len);  in read_packet()
1151     if (new_style_driver && ppp_fd < 0 && ppp_dev_fd < 0)  in read_packet()
1235 	if (ioctl(ppp_fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) {  in tty_send_config()
1244 	modify_flags(ppp_fd, SC_COMP_PROT|SC_COMP_AC|SC_SYNC, x);  in tty_send_config()
1256     if (ioctl(ppp_fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY) {  in tty_set_xaccm()
1279 	if (ioctl(ppp_fd, PPPIOCSMRU, (caddr_t) &mru) < 0) {  in tty_recv_config()
1287 	if (ioctl(ppp_fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {  in tty_recv_config()
2699 	ppp_fd = -1;  in open_ppp_loopback()
2713     flags = fcntl(ppp_fd, F_GETFL);  in open_ppp_loopback()
2715 	fcntl(ppp_fd, F_SETFL, flags | O_NONBLOCK) == -1)  in open_ppp_loopback()
2718     if (ioctl(ppp_fd, TIOCSETD, &ppp_disc) < 0)  in open_ppp_loopback()
2723     if (ioctl(ppp_fd, PPPIOCGUNIT, &ifunit) < 0)  in open_ppp_loopback()