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Prevent crash

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This commit is contained in:
M66B
2021-08-21 18:10:02 +02:00
parent e6322b44f7
commit c9836f8006
1 changed files with 21 additions and 12 deletions
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33
app/src/main/java/eu/faircode/email/EmailService.java
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@@ -503,19 +503,28 @@ public class EmailService implements AutoCloseable {
boolean has4 = false;
boolean has6 = false;
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces != null && interfaces.hasMoreElements()) {
NetworkInterface ni = interfaces.nextElement();
for (InterfaceAddress iaddr : ni.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
boolean local = (addr.isLoopbackAddress() || addr.isLinkLocalAddress());
EntityLog.log(context, "Interface=" + ni + " addr=" + addr + " local=" + local);
if (!local)
if (addr instanceof Inet4Address)
has4 = true;
else if (addr instanceof Inet6Address)
has6 = true;
try {
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces != null && interfaces.hasMoreElements()) {
NetworkInterface ni = interfaces.nextElement();
for (InterfaceAddress iaddr : ni.getInterfaceAddresses()) {
InetAddress addr = iaddr.getAddress();
boolean local = (addr.isLoopbackAddress() || addr.isLinkLocalAddress());
EntityLog.log(context, "Interface=" + ni + " addr=" + addr + " local=" + local);
if (!local)
if (addr instanceof Inet4Address)
has4 = true;
else if (addr instanceof Inet6Address)
has6 = true;
}
}
} catch (Throwable ex2) {
Log.e(ex2);
/*
java.lang.NullPointerException: Attempt to read from field 'java.util.List java.net.NetworkInterface.childs' on a null object reference
at java.net.NetworkInterface.getAll(NetworkInterface.java:498)
at java.net.NetworkInterface.getNetworkInterfaces(NetworkInterface.java:398)
*/
}
EntityLog.log(context, "Address main=" + main +