1 /*
   2  * Copyright (c) 2009, 2010, 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 import java.io.File;
  25 import java.io.IOException;
  26 import java.net.NetworkInterface;
  27 import java.net.InetAddress;
  28 import java.util.Scanner;
  29 import java.util.Enumeration;
  30 
  31 /**
  32  * Probes for InfiniBand devices plumbed with IP addresses.
  33  */
  34 
  35 public class ProbeIB {
  36     public static void main(String[] args) throws IOException {
  37         Scanner s = new Scanner(new File(args[0]));
  38         try {
  39             while (s.hasNextLine()) {
  40                 String link = s.nextLine();
  41                 NetworkInterface ni = NetworkInterface.getByName(link);
  42                 if (ni != null) {
  43                     Enumeration<InetAddress> addrs = ni.getInetAddresses();
  44                     while (addrs.hasMoreElements()) {
  45                         InetAddress addr = addrs.nextElement();
  46                         System.out.println(addr.getHostAddress());
  47                     }
  48                 }
  49             }
  50         } finally {
  51             s.close();
  52         }
  53     }
  54 }