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Catch NPE thrown by NetworkInterface.getNetworkInterfaces().

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This commit is contained in:
akwizgran
2022-03-05 13:54:48 +00:00
parent f5f7b3eb51
commit 79051439c5
2 changed files with 7 additions and 11 deletions
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2
bramble-api/src/main/java/org/briarproject/bramble/util/NetworkUtils.java
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@@ -26,7 +26,7 @@ public class NetworkUtils {
// Despite what the docs say, the return value can be null
//noinspection ConstantConditions
return ifaces == null ? emptyList() : list(ifaces);
} catch (SocketException e) {
} catch (SocketException | NullPointerException e) {
logException(LOG, WARNING, e);
return emptyList();
}

16
bramble-core/src/main/java/org/briarproject/bramble/system/AbstractSecureRandomProvider.java
View File

@@ -7,14 +7,13 @@ import java.io.DataOutputStream;
import java.io.IOException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
import java.util.Map.Entry;
import java.util.Properties;
import javax.annotation.concurrent.Immutable;
import static java.net.NetworkInterface.getNetworkInterfaces;
import static java.util.Collections.list;
import static org.briarproject.bramble.util.NetworkUtils.getNetworkInterfaces;
@Immutable
@NotNullByDefault
@@ -25,14 +24,11 @@ abstract class AbstractSecureRandomProvider implements SecureRandomProvider {
out.writeLong(System.currentTimeMillis());
out.writeLong(System.nanoTime());
out.writeLong(Runtime.getRuntime().freeMemory());
Enumeration<NetworkInterface> ifaces = getNetworkInterfaces();
if (ifaces != null) {
for (NetworkInterface i : list(ifaces)) {
for (InetAddress a : list(i.getInetAddresses()))
out.write(a.getAddress());
byte[] hardware = i.getHardwareAddress();
if (hardware != null) out.write(hardware);
}
for (NetworkInterface i : getNetworkInterfaces()) {
for (InetAddress a : list(i.getInetAddresses()))
out.write(a.getAddress());
byte[] hardware = i.getHardwareAddress();
if (hardware != null) out.write(hardware);
}
for (Entry<String, String> e : System.getenv().entrySet()) {
out.writeUTF(e.getKey());