105 lines
3.7 KiB
Java
105 lines
3.7 KiB
Java
/*
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* Copyright (c) 2002, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Lookup/reverse lookup class for regression test 4773521
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* @test
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* @bug 4773521
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* @summary Test that reverse lookups of IPv4 addresses work when IPv6
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* is enabled
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* @library /test/lib
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* @build jdk.test.lib.Utils
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* jdk.test.lib.Asserts
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* jdk.test.lib.JDKToolFinder
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* jdk.test.lib.JDKToolLauncher
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* jdk.test.lib.Platform
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* jdk.test.lib.process.*
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* Lookup
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* @run main Lookup root
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*
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*/
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.util.List;
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import jdk.test.lib.JDKToolFinder;
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import jdk.test.lib.process.OutputAnalyzer;
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public class Lookup {
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private static final String HOST = "icann.org";
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private static final String SKIP = "SKIP";
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private static final String CLASS_PATH = System.getProperty(
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"test.class.path");
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public static void main(String args[]) throws IOException {
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String addr = null;
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String ipv4Name = null;
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if (args.length == 0) {
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// First check that host resolves to IPv4 address
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try {
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InetAddress ia = InetAddress.getByName(HOST);
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addr = ia.getHostAddress();
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} catch (UnknownHostException e) {
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System.out.print(SKIP);
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return;
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}
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} else {
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String tmp = lookupWithIPv4Prefer();
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System.out.println("IPv4 lookup results: [" + tmp + "]");
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if (SKIP.equals(tmp)) {
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System.out.println(HOST + " can't be resolved - test skipped.");
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return;
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}
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String[] strs = tmp.split(":");
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addr = strs[0];
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ipv4Name = strs[1];
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}
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// reverse lookup
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InetAddress ia = InetAddress.getByName(addr);
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String name = ia.getHostName();
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if (args.length == 0) {
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System.out.print(addr + ":" + name);
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return;
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} else {
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System.out.println("(default) " + addr + "--> " + name);
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if (!ipv4Name.equals(name)) {
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throw new RuntimeException("Mismatch between default"
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+ " and java.net.preferIPv4Stack=true results");
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}
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}
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}
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static String lookupWithIPv4Prefer() throws IOException {
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String java = JDKToolFinder.getTestJDKTool("java");
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String testClz = Lookup.class.getName();
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List<String> cmd = List.of(java, "-Djava.net.preferIPv4Stack=true",
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"-cp", CLASS_PATH, testClz);
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System.out.println("Executing: " + cmd);
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return new OutputAnalyzer(new ProcessBuilder(cmd).start()).getOutput();
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}
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}
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