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test/java/net/Inet6Address/B6206527.java

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   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 /**
  25  * @test 1.1 05/01/05
  26  * @bug 6206527
  27  * @summary "cannot assign address" when binding ServerSocket on Suse 9



  28  */
  29 
  30 import java.net.*;
  31 import java.util.*;

  32 
  33 public class B6206527 {
  34 
  35     public static void main (String[] args) throws Exception {
  36         Inet6Address addr = getLocalAddr();
  37         if (addr == null) {
  38             System.out.println ("Could not find a link-local address");
  39             return;
  40         }
  41 
  42         ServerSocket ss = new ServerSocket();
  43         System.out.println ("trying LL addr: " + addr);
  44         ss.bind(new InetSocketAddress(addr, 0));
  45 
  46         // need to remove the %scope suffix
  47         addr = (Inet6Address)InetAddress.getByAddress (
  48             addr.getAddress()
  49         );
  50 
  51         System.out.println ("trying LL addr: " + addr);
  52         ss = new ServerSocket();
  53         ss.bind(new InetSocketAddress(addr, 0));
  54     }
  55 
  56     public static Inet6Address getLocalAddr () throws Exception {
  57         Enumeration e = NetworkInterface.getNetworkInterfaces();
  58         while (e.hasMoreElements()) {
  59             NetworkInterface ifc = (NetworkInterface) e.nextElement();
  60             Enumeration addrs = ifc.getInetAddresses();
  61             while (addrs.hasMoreElements()) {
  62                 InetAddress a = (InetAddress)addrs.nextElement();
  63                 if (a instanceof Inet6Address) {
  64                     Inet6Address ia6 = (Inet6Address) a;
  65                     if (ia6.isLinkLocalAddress()) {
  66                         return ia6;
  67                     }
  68                 }
  69             }
  70         }
  71         return null;
  72     }
  73 }


   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 /**
  25  * @test 1.1 05/01/05
  26  * @bug 6206527
  27  * @summary "cannot assign address" when binding ServerSocket on Suse 9
  28  * @library /lib/testlibrary
  29  * @build jdk.testlibrary.NetworkConfiguration
  30  * @run main B6206527
  31  */
  32 
  33 import java.net.*;
  34 import java.util.*;
  35 import jdk.testlibrary.NetworkConfiguration;
  36 
  37 public class B6206527 {
  38 
  39     public static void main (String[] args) throws Exception {
  40         Inet6Address addr = getLocalAddr();
  41         if (addr == null) {
  42             System.out.println ("Could not find a link-local address");
  43             return;
  44         }
  45 
  46         ServerSocket ss = new ServerSocket();
  47         System.out.println ("trying LL addr: " + addr);
  48         ss.bind(new InetSocketAddress(addr, 0));
  49 
  50         // need to remove the %scope suffix
  51         addr = (Inet6Address)InetAddress.getByAddress (
  52             addr.getAddress()
  53         );
  54 
  55         System.out.println ("trying LL addr: " + addr);
  56         ss = new ServerSocket();
  57         ss.bind(new InetSocketAddress(addr, 0));
  58     }
  59 
  60     public static Inet6Address getLocalAddr() throws Exception {
  61         Optional<Inet6Address> oaddr = NetworkConfiguration.probe()
  62                 .ip6Addresses()
  63                 .filter(a -> a.isLinkLocalAddress())
  64                 .findFirst();
  65 
  66         return oaddr.orElseGet(() -> null);









  67     }
  68 }
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