@TargetApi(Build.VERSION_CODES.GINGERBREAD)
public static void populateLanMasks(Context context, String[] names, InterfaceDetails ret) {
try {
Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
while (en.hasMoreElements()) {
NetworkInterface intf = en.nextElement();
boolean match = false;
if (!intf.isUp() || intf.isLoopback()) {
continue;
}
for (String pattern : ITFS_WIFI) {
if (intf.getName().startsWith(truncAfter(pattern, "\\+"))) {
match = true;
break;
}
}
if (!match) continue;
ret.wifiName = intf.getName();
Iterator<InterfaceAddress> addrList = intf.getInterfaceAddresses().iterator();
while (addrList.hasNext()) {
InterfaceAddress addr = addrList.next();
InetAddress ip = addr.getAddress();
String mask =
truncAfter(ip.getHostAddress(), "%") + "/" + addr.getNetworkPrefixLength();
if (ip instanceof Inet4Address) {
ret.lanMaskV4 = mask;
} else if (ip instanceof Inet6Address) {
ret.lanMaskV6 = mask;
}
}
}
} catch (SocketException e) {
Log.e(TAG, "Error fetching network interface list");
} catch (Exception e) {
Log.e(TAG, "Error fetching network interface list");
}
}
