442 	struct lifconf	lifc;  in find_subnets()  local
473 	lifc.lifc_family = AF_INET;  in find_subnets()
474 	lifc.lifc_flags = 0;  in find_subnets()
475 	lifc.lifc_len = lifn.lifn_count * sizeof (struct lifreq);  in find_subnets()
476 	lifc.lifc_buf = malloc(lifc.lifc_len);  in find_subnets()
478 	if (lifc.lifc_buf == NULL) {  in find_subnets()
484 	if (ioctl(sock, SIOCGLIFCONF, (char *)&lifc) < 0) {  in find_subnets()
487 		free(lifc.lifc_buf);  in find_subnets()
492 	n = lifc.lifc_len / (int)sizeof (struct lifreq);  in find_subnets()
495 		free(lifc.lifc_buf);  in find_subnets()
500 	for (i = 0, lifrp = lifc.lifc_req; i < n; i++, lifrp++) {  in find_subnets()
519 	free(lifc.lifc_buf);  in find_subnets()