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Code Issues Releases Wiki Activity

Bind to interface

This commit is contained in:
M66B 2023-05-15 08:46:01 +02:00
parent 32ee4fc0d4
commit d5b7df448c
1 changed files with 15 additions and 0 deletions
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15
app/src/main/java/eu/faircode/email/ConnectionHelper.java
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@ -23,6 +23,7 @@ import android.accounts.AccountsException;
import android.content.Context;
import android.content.SharedPreferences;
import android.net.ConnectivityManager;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkInfo;
@ -598,10 +599,24 @@ public class ConnectionHelper {
static boolean[] has46(Context context) {
boolean has4 = false;
boolean has6 = false;
String ifacename = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
try {
ConnectivityManager cm = Helper.getSystemService(context, ConnectivityManager.class);
Network active = (cm == null ? null : cm.getActiveNetwork());
LinkProperties props = (active == null ? null : cm.getLinkProperties(active));
ifacename = (props == null ? null : props.getInterfaceName());
} catch (Throwable ex) {
Log.e(ex);
}
try {
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces != null && interfaces.hasMoreElements()) {
NetworkInterface ni = interfaces.nextElement();
if (ifacename != null && !ifacename.equals(ni.getName()))
continue;
for (InterfaceAddress iaddr : ni.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
boolean local = (addr.isLoopbackAddress() || addr.isLinkLocalAddress());