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