| /* |
| * Copyright (c) 2007, 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 6521014 6543428 |
| * @summary IOException thrown when Socket tries to bind to an local IPv6 address on SuSE Linux |
| * @library /lib/testlibrary |
| * @build jdk.testlibrary.NetworkConfiguration |
| * @run main B6521014 |
| */ |
| |
| import java.net.*; |
| import java.io.*; |
| import java.util.*; |
| import jdk.testlibrary.NetworkConfiguration; |
| |
| /* |
| * |
| * What this testcase is to test is a (weird) coupling through the |
| * cached_scope_id field of java.net.Inet6Address. Native method |
| * NET_InetAddressToSockaddr as in Linux platform will try to write |
| * and read this field, therefore Inet6Address becomes 'stateful'. |
| * So the coupling. Certain executive order, e.g. two methods use |
| * the same Inet6Address instance as illustrated in this test case, |
| * will show side effect of such coupling. |
| * |
| * And on Windows, NET_InetAddressToSockaddr() did not assign appropriate |
| * sin6_scope_id value to sockaddr_in6 structure if there's no one coming |
| * with Inet6Address instance, which caused bind exception. This test use |
| * link-local address without %scope suffix, so it is also going to test |
| * that. |
| * |
| */ |
| public class B6521014 { |
| |
| static Inet6Address removeScope(Inet6Address addr) { |
| try { |
| return (Inet6Address)InetAddress.getByAddress(addr.getAddress()); |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| static Optional<Inet6Address> getLocalAddr() throws Exception { |
| return NetworkConfiguration.probe() |
| .ip6Addresses() |
| .filter(Inet6Address::isLinkLocalAddress) |
| .map(B6521014::removeScope) |
| .findFirst(); |
| } |
| |
| static void test1(Inet6Address sin) throws Exception { |
| try (ServerSocket ssock = new ServerSocket(0); |
| Socket sock = new Socket()) { |
| int port = ssock.getLocalPort(); |
| sock.connect(new InetSocketAddress(sin, port), 100); |
| } catch (SocketTimeoutException e) { |
| // time out exception is okay |
| System.out.println("timed out when connecting."); |
| } |
| } |
| |
| static void test2(Inet6Address sin) throws Exception { |
| try (ServerSocket ssock = new ServerSocket(0); |
| Socket sock = new Socket()) { |
| int port = ssock.getLocalPort(); |
| ssock.setSoTimeout(100); |
| sock.bind(new InetSocketAddress(sin, 0)); |
| sock.connect(new InetSocketAddress(sin, port), 100); |
| } catch (SocketTimeoutException expected) { |
| // time out exception is okay |
| System.out.println("timed out when connecting."); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Optional<Inet6Address> oaddr = getLocalAddr(); |
| if (!oaddr.isPresent()) { |
| System.out.println("Cannot find a link-local address."); |
| return; |
| } |
| |
| Inet6Address addr = oaddr.get(); |
| System.out.println("Using " + addr); |
| test1(addr); |
| test2(addr); |
| } |
| } |