+ return (int)ioctl(fd, IF_UNITSEL, (char *)&ppa);
+}
+#endif /* SOL2 */
+
+#if defined(SOL2) && defined(INET6)
+/*
+ * get_first_ethernet - returns the first Ethernet interface name found in
+ * the system, or NULL if none is found
+ *
+ * NOTE: This is the lifreq version (Solaris 8 and above)
+ */
+char *
+get_first_ethernet()
+{
+ struct lifnum lifn;
+ struct lifconf lifc;
+ struct lifreq *plifreq;
+ struct lifreq lifr;
+ int fd, num_ifs, i, found;
+ uint_t fl, req_size;
+ char *req;
+
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ return 0;
+ }
+
+ /*
+ * Find out how many interfaces are running
+ */
+ lifn.lifn_family = AF_UNSPEC;
+ lifn.lifn_flags = LIFC_NOXMIT;
+ if (ioctl(fd, SIOCGLIFNUM, &lifn) < 0) {
+ close(fd);
+ error("could not determine number of interfaces: %m");
+ return 0;
+ }
+
+ num_ifs = lifn.lifn_count;
+ req_size = num_ifs * sizeof(struct lifreq);
+ req = malloc(req_size);
+ if (req == NULL) {
+ close(fd);
+ error("out of memory");
+ return 0;
+ }
+
+ /*
+ * Get interface configuration info for all interfaces
+ */
+ lifc.lifc_family = AF_UNSPEC;
+ lifc.lifc_flags = LIFC_NOXMIT;
+ lifc.lifc_len = req_size;
+ lifc.lifc_buf = req;
+ if (ioctl(fd, SIOCGLIFCONF, &lifc) < 0) {
+ close(fd);
+ free(req);
+ error("SIOCGLIFCONF: %m");
+ return 0;
+ }
+
+ /*
+ * And traverse each interface to look specifically for the first
+ * occurence of an Ethernet interface which has been marked up
+ */
+ plifreq = lifc.lifc_req;
+ found = 0;
+ for (i = lifc.lifc_len / sizeof(struct lifreq); i > 0; i--, plifreq++) {
+
+ if (strchr(plifreq->lifr_name, ':') != NULL)
+ continue;
+
+ memset(&lifr, 0, sizeof(lifr));
+ strncpy(lifr.lifr_name, plifreq->lifr_name, sizeof(lifr.lifr_name));
+ if (ioctl(fd, SIOCGLIFFLAGS, &lifr) < 0) {
+ close(fd);
+ free(req);
+ error("SIOCGLIFFLAGS: %m");
+ return 0;
+ }
+ fl = lifr.lifr_flags;
+
+ if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
+ != (IFF_UP | IFF_BROADCAST))
+ continue;
+
+ found = 1;
+ break;
+ }
+ free(req);
+ close(fd);
+
+ if (found) {
+ strncpy(first_ether_name, lifr.lifr_name, sizeof(first_ether_name));
+ return (char *)first_ether_name;
+ } else
+ return NULL;
+}
+#else
+/*
+ * get_first_ethernet - returns the first Ethernet interface name found in
+ * the system, or NULL if none is found
+ *
+ * NOTE: This is the ifreq version (before Solaris 8).
+ */
+char *
+get_first_ethernet()
+{
+ struct ifconf ifc;
+ struct ifreq *pifreq;
+ struct ifreq ifr;
+ int fd, num_ifs, i, found;
+ uint_t fl, req_size;
+ char *req;
+
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ return 0;
+ }
+
+ /*
+ * Find out how many interfaces are running
+ */
+ if (ioctl(fd, SIOCGIFNUM, (char *)&num_ifs) < 0) {
+ num_ifs = MAXIFS;
+ }
+
+ req_size = num_ifs * sizeof(struct ifreq);
+ req = malloc(req_size);
+ if (req == NULL) {
+ close(fd);
+ error("out of memory");
+ return 0;
+ }
+
+ /*
+ * Get interface configuration info for all interfaces
+ */
+ ifc.ifc_len = req_size;
+ ifc.ifc_buf = req;
+ if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) {
+ close(fd);
+ free(req);
+ error("SIOCGIFCONF: %m");
+ return 0;
+ }
+
+ /*
+ * And traverse each interface to look specifically for the first
+ * occurence of an Ethernet interface which has been marked up
+ */
+ pifreq = ifc.ifc_req;
+ found = 0;
+ for (i = ifc.ifc_len / sizeof(struct ifreq); i > 0; i--, pifreq++) {
+
+ if (strchr(pifreq->ifr_name, ':') != NULL)
+ continue;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, pifreq->ifr_name, sizeof(ifr.ifr_name));
+ if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0) {
+ close(fd);
+ free(req);
+ error("SIOCGIFFLAGS: %m");
+ return 0;
+ }
+ fl = ifr.ifr_flags;
+
+ if ((fl & (IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT|IFF_LOOPBACK|IFF_NOARP))
+ != (IFF_UP | IFF_BROADCAST))
+ continue;
+
+ found = 1;
+ break;
+ }
+ free(req);
+ close(fd);