95 lines
4.0 KiB
Java
95 lines
4.0 KiB
Java
/*
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* Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 6717876
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* @summary Make java.net.NetworkInterface.getIndex() public
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*/
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import java.net.*;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.Enumeration;
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import static java.lang.System.out;
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public class IndexTest {
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static final boolean isWindows = System.getProperty("os.name").startsWith("Windows");
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public static void main(String[] args) throws Exception {
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Enumeration<NetworkInterface> netifs = NetworkInterface.getNetworkInterfaces();
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NetworkInterface nif;
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while (netifs.hasMoreElements()) {
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nif = netifs.nextElement();
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// JDK-8022212, Skip (Windows) Teredo Tunneling Pseudo-Interface
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String dName = nif.getDisplayName();
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if (isWindows && dName != null && dName.contains("Teredo"))
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continue;
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int index = nif.getIndex();
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if (index >= 0) {
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NetworkInterface nif2 = NetworkInterface.getByIndex(index);
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if (! nif.equals(nif2)) {
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out.printf("%nExpected interfaces to be the same, but got:%n");
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displayInterfaceInformation(nif);
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displayInterfaceInformation(nif2);
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throw new RuntimeException("both interfaces should be equal");
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}
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}
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}
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try {
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nif = NetworkInterface.getByIndex(-1);
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out.printf("%ngetByIndex(-1) should have thrown, but instead returned:%n");
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displayInterfaceInformation(nif);
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throw new RuntimeException("Should have thrown IllegalArgumentException");
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} catch (IllegalArgumentException e) {
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// OK
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}
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// In all likelyhood, this interface should not exist.
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nif = NetworkInterface.getByIndex(Integer.MAX_VALUE - 1);
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if (nif != null) {
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out.printf("%ngetByIndex(MAX_VALUE - 1), expected null, got:%n");
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displayInterfaceInformation(nif);
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throw new RuntimeException("getByIndex() should have returned null");
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}
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}
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static void displayInterfaceInformation(NetworkInterface netint) throws SocketException {
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out.printf("Display name: %s%n", netint.getDisplayName());
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out.printf("Name: %s%n", netint.getName());
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Enumeration<InetAddress> inetAddresses = netint.getInetAddresses();
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for (InetAddress inetAddress : Collections.list(inetAddresses))
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out.printf("InetAddress: %s%n", inetAddress);
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out.printf("Up? %s%n", netint.isUp());
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out.printf("Loopback? %s%n", netint.isLoopback());
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out.printf("PointToPoint? %s%n", netint.isPointToPoint());
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out.printf("Supports multicast? %s%n", netint.supportsMulticast());
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out.printf("Virtual? %s%n", netint.isVirtual());
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out.printf("Hardware address: %s%n",
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Arrays.toString(netint.getHardwareAddress()));
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out.printf("MTU: %s%n", netint.getMTU());
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out.printf("Index: %s%n", netint.getIndex());
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out.printf("%n");
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}
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}
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