1 /*

     2  * Copyright 2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /* @test

    25  * @bug 6442088

    26  * @summary Change default DNS caching behavior for code not running under

    27  *          security manager.

    28  *

    29  * @build B6442088 SimpleNameService SimpleNameServiceDescriptor

    30  * @run main/othervm/timeout=200 -Dsun.net.inetaddr.ttl=20 -Dsun.net.spi.nameservice.provider.1=simple,sun B6442088

    31  */

    32 import java.net.InetAddress;

    33 import java.net.UnknownHostException;

    34 import java.security.Security;

    35 

    36 public class B6442088 {

    37 

    38     public static void main(String args[]) throws Exception {

    39 

    40         // name service needs to resolve this.

    41         SimpleNameService.put("theclub", "129.156.220.219");

    42 

    43         test ("theclub", "129.156.220.219", true);      // lk: 1

    44         test ("luster", "1.16.20.2", false);            // lk: 2

    45 

    46         // name service now needs to know about luster

    47         SimpleNameService.put("luster", "10.5.18.21");

    48 

    49         test ("luster", "1.16.20.2", false);            // lk: 2

    50         sleep (10+1);

    51         test("luster", "10.5.18.21", true, 3);          // lk: 3

    52         sleep (5);

    53 

    54         SimpleNameService.put("foo", "10.5.18.22");

    55         SimpleNameService.put("theclub", "129.156.220.1");

    56 

    57         test ("theclub", "129.156.220.219", true, 3);

    58         test ("luster", "10.5.18.21", true, 3);

    59         test ("bar", "10.5.18.22", false, 4);

    60         test ("foo", "10.5.18.22", true, 5);

    61 

    62         // now delay to see if theclub has expired

    63         sleep (5);

    64 

    65         test ("foo", "10.5.18.22", true, 5);

    66         test ("theclub", "129.156.220.1", true, 6);

    67 

    68         sleep (11);

    69         // now see if luster has expired

    70         test ("luster", "10.5.18.21", true, 7);

    71         test ("theclub", "129.156.220.1", true, 7);

    72 

    73         // now delay to see if 3rd has expired

    74         sleep (10+6);

    75 

    76         test ("theclub", "129.156.220.1", true, 8);

    77         test ("luster", "10.5.18.21", true, 8);

    78         test ("foo", "10.5.18.22", true, 9);

    79     }

    80 

    81     /* throws RuntimeException if it fails */

    82 

    83     static void test (String host, String address,

    84                         boolean shouldSucceed, int count) {

    85         test (host, address, shouldSucceed);

    86         int got = SimpleNameService.lookupCalls();

    87         if (got != count) {

    88             throw new RuntimeException ("lookups exp/got: " + count+"/"+got);

    89         }

    90     }

    91 

    92     static void sleep (int seconds) {

    93         try {

    94             Thread.sleep (seconds * 1000);

    95         } catch (InterruptedException e) {}

    96     }

    97 

    98     static void test (String host, String address, boolean shouldSucceed) {

    99         InetAddress addr = null;

   100         try {

   101             addr = InetAddress.getByName (host);

   102             if (!shouldSucceed) {

   103                 throw new RuntimeException (host+":"+address+": should fail");

   104 

   105             }

   106             if (!address.equals(addr.getHostAddress())) {

   107                 throw new RuntimeException(host+":"+address+": compare failed");

   108             }

   109         } catch (UnknownHostException e) {

   110             if (shouldSucceed) {

   111                 throw new RuntimeException(host+":"+address+": should succeed");

   112             }

   113         }

   114     }

   115 

   116 }