NetParamsTest.java revision 6073:cea72c2bf071 
1/*
2 * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/* @test
25 * @bug 4691932
26 * @summary Programmatic access to network parameters
27 */
28
29import java.net.*;
30import java.util.Enumeration;
31
32public class NetParamsTest {
33    private static void printIF(NetworkInterface netif) throws SocketException {
34        System.out.println(netif.getName() + " : ");
35        System.out.println("\tStatus: " + (netif.isUp() ? " UP" : "DOWN"));
36        byte[] mac = netif.getHardwareAddress();
37        if (mac != null) {
38            System.out.print("\tHardware Address: ");
39            for (byte b : mac) {
40                System.out.print(Integer.toHexString(b) + ":");
41            }
42            System.out.println();
43        }
44        System.out.println("\tLoopback: " + netif.isLoopback());
45        System.out.println("\tPoint to Point: " + netif.isPointToPoint());
46        System.out.println("\tVirtual: " + netif.isVirtual());
47        if (netif.isVirtual()) {
48            NetworkInterface parent = netif.getParent();
49            String parentName = parent == null ? "null" : parent.getName();
50            System.out.println("\tParent Interface: " + parentName);
51        }
52        System.out.println("\tMulticast: " + netif.supportsMulticast());
53
54        System.out.println("\tMTU: " + netif.getMTU());
55        System.out.println("\tBindings:");
56        java.util.List<InterfaceAddress> binds = netif.getInterfaceAddresses();
57        for (InterfaceAddress b : binds) {
58            System.out.println("\t\t" + b);
59        }
60        Enumeration<NetworkInterface> ifs = netif.getSubInterfaces();
61        while(ifs.hasMoreElements()) {
62            NetworkInterface subif = ifs.nextElement();
63            printIF(subif);
64        }
65    }
66
67    public static void main(String[] args) throws Exception {
68        Enumeration<NetworkInterface> ifs = NetworkInterface.getNetworkInterfaces();
69        while (ifs.hasMoreElements()) {
70            NetworkInterface netif = ifs.nextElement();
71            printIF(netif);
72        }
73     }
74}
75