142 static int ipfd = -1;			/* IPv4 fd */  variable
302 	ipfd = open(IP_DEV_NAME, O_RDWR | O_NONBLOCK, 0);  in open_ipfd()
303 	if (ipfd < 0) {  in open_ipfd()
306 	return (ipfd);  in open_ipfd()
315 	if (ipfd == -1 && open_ipfd() == -1)  in read_ip_interface()
322 	if (myioctl(ipfd, SIOCGIFMTU, &ifr) < 0) {  in read_ip_interface()
335 		if (myioctl(ipfd, SIOCGIFADDR, &ifr) < 0) {  in read_ip_interface()
348 		if (myioctl(ipfd, SIOCGIFDSTADDR, &ifr) < 0) {  in read_ip_interface()
568 	if (ipfd == -1 && open_ipfd() == -1)  in plumb_ipif()
615 		ipmuxid = myioctl(ipfd, I_LINK, (void *)tmpfd);  in plumb_ipif()
625 	if (myioctl(ipfd, SIOCSIFMUXID, (caddr_t)&ifr) < 0) {  in plumb_ipif()
656 	if (!plumbed && (ipmuxid == -1 || (ipfd == -1 && !use_plink)))  in unplumb_ipif()
669 		if (myioctl(ipfd, SIOCGLIFMUXID, (caddr_t)&lifr) < 0) {  in unplumb_ipif()
705 		if (myioctl(ipfd, I_UNLINK, (void *)id) < 0) {  in unplumb_ipif()
892 	if (ipfd != -1) {  in sys_close()
893 		(void) close(ipfd);  in sys_close()
894 		ipfd = -1;  in sys_close()
2345 	if (ipfd == -1 && open_ipfd() == -1)
2349 	if (myioctl(ipfd, SIOCGIFFLAGS, &ifr) < 0) {
2358 	if (myioctl(ipfd, SIOCSIFFLAGS, &ifr) < 0) {
2484 	if (ipfd == -1 && open_ipfd() == -1)
2489 	if (myioctl(ipfd, SIOCSIFMTU, &ifr) < 0) {
2516 	if (ipfd == -1 && open_ipfd() == -1)
2534 	if (myioctl(ipfd, SIOCSIFADDR, &ifr) < 0) {
2544 	if (myioctl(ipfd, SIOCSIFDSTADDR, &ifr) < 0) {
2590 	if (ipfd == -1 && open_ipfd() == -1)  in sifroute()
2606 	if (myioctl(ipfd, (add ? SIOCADDRT : SIOCDELRT), &rt) < 0) {  in sifroute()
2671 	if (ipfd == -1 && open_ipfd() == -1)
2686 	if (myioctl(ipfd, SIOCSXARP, (caddr_t)&arpreq) < 0) {
2719 	if (ipfd == -1 && open_ipfd() == -1)
2730 	if (myioctl(ipfd, SIOCDXARP, (caddr_t)&arpreq) < 0) {
2756 	if (ipfd == -1 && open_ipfd() == -1)  in get_ether_addr()
2762 	if (myioctl(ipfd, SIOCGIFNUM, &nif) < 0) {  in get_ether_addr()
2772 	if (myioctl(ipfd, SIOCGIFCONF, &ifc) < 0) {  in get_ether_addr()
2789 		if (myioctl(ipfd, SIOCGIFFLAGS, &ifreq) < 0) {  in get_ether_addr()
2799 		if (myioctl(ipfd, SIOCGIFNETMASK, &ifreq) < 0) {  in get_ether_addr()
2962 	if (ipfd == -1 && open_ipfd() == -1)
2982 	if (putmsg(ipfd, &cbuf, NULL, 0) == -1) {
2993 		r = getmsg(ipfd, &cbuf, &dbuf, &flags);
3014 				r = getmsg(ipfd, NULL, &dbuf, &flags);
3043 			r = getmsg(ipfd, NULL, &dbuf, &flags);