| /* |
| * Copyright (c) 2015, 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. |
| */ |
| |
| import java.lang.reflect.Field; |
| import java.util.Hashtable; |
| |
| import javax.naming.Context; |
| import javax.naming.NamingException; |
| import javax.naming.spi.NamingManager; |
| |
| import com.sun.jndi.dns.DnsContext; |
| |
| /** |
| * @bug 6991580 |
| * @summary IPv6 Nameservers in resolv.conf throws NumberFormatException |
| * |
| * @author Severin Gehwolf |
| */ |
| |
| public class IPv6NameserverPlatformParsingTest { |
| |
| private static boolean foundIPv6 = false; |
| |
| public static void main(String[] args) { |
| Hashtable<String, String> env = new Hashtable<>(); |
| env.put(Context.INITIAL_CONTEXT_FACTORY, com.sun.jndi.dns.DnsContextFactory.class.getName()); |
| |
| String[] servers; |
| try { |
| Context ctx = NamingManager.getInitialContext(env); |
| if (!com.sun.jndi.dns.DnsContextFactory.platformServersAvailable()) { |
| throw new RuntimeException("FAIL: no platform servers available, test does not make sense"); |
| } |
| DnsContext context = (DnsContext)ctx; |
| servers = getServersFromContext(context); |
| } catch (NamingException e) { |
| throw new RuntimeException(e); |
| } |
| for (String server: servers) { |
| System.out.println("DEBUG: 'nameserver = " + server + "'"); |
| if (server.indexOf(':') >= 0 && server.indexOf('.') < 0) { |
| System.out.println("DEBUG: ==> Found IPv6 address in servers list: " + server); |
| foundIPv6 = true; |
| } |
| } |
| try { |
| new com.sun.jndi.dns.DnsClient(servers, 100, 1); |
| } catch (NumberFormatException e) { |
| throw new RuntimeException("FAIL: Tried to parse non-[]-encapsulated IPv6 address.", e); |
| } catch (Exception e) { |
| throw new RuntimeException("ERROR: Something unexpected happened."); |
| } |
| if (!foundIPv6) { |
| // This is a manual test, since it requires changing /etc/resolv.conf on Linux/Unix |
| // platforms. See comment as to how to run this test. |
| throw new RuntimeException("ERROR: No IPv6 address returned from platform."); |
| } |
| System.out.println("PASS: Found IPv6 address and DnsClient parsed it correctly."); |
| } |
| |
| private static String[] getServersFromContext(DnsContext context) { |
| try { |
| Field serversField = DnsContext.class.getDeclaredField("servers"); |
| serversField.setAccessible(true); |
| return (String[])serversField.get(context); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| } |