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/*
* Copyright (c) 2016, 2021, 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 8134577
* @summary Test the internal NameService implementation which is enabled via
* the system property jdk.net.hosts.file. This property specifies
* a file name that contains address host mappings, similar to those in
* /etc/hosts file. TestHosts-III file exist, with a set of ipv4 and ipv6
* mappings
* @library /test/lib
* @build jdk.test.lib.net.IPSupport
* @run main/othervm -Djdk.net.hosts.file=${test.src}/TestHosts-III -Dsun.net.inetaddr.ttl=0
* InternalNameServiceWithHostsFileTest
*/
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;
import jdk.test.lib.net.IPSupport;
public class InternalNameServiceWithHostsFileTest {
public static void main(String args[]) throws Exception {
// fe80::1
byte[] expectedIpv6Address = { (byte) 0xfe, (byte) 0x80, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1 };
// fe00::0
byte[] expectedIpv6LocalAddress = { (byte) 0xfe, (byte) 0x00, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
// 10.2.3.4
byte[] expectedIpv4Address = { 10, 2, 3, 4 };
//
byte[] expectedIpv6LocalhostAddress = { 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1 };
// 10.2.3.4 testHost.testDomain
testHostsMapping(expectedIpv4Address, "testHost.testDomain");
if (IPSupport.hasIPv6()) {
// ::1 ip6-localhost ip6-loopback
testHostsMapping(expectedIpv6LocalhostAddress, "ip6-localhost");
// fe00::0 ip6-localnet
testHostsMapping(expectedIpv6LocalAddress, "ip6-localnet");
// fe80::1 link-local-host
testHostsMapping(expectedIpv6Address, "link-local-host");
}
testReverseLookup("10.2.3.4", "testHost.testDomain");
if (IPSupport.hasIPv6()) {
testReverseLookup("::1", "ip6-localhost");
testReverseLookup("0:0:0:0:0:0:0:1", "ip6-localhost");
testReverseLookup("0000:0000:0000:0000:0000:0000:0000:0001", "ip6-localhost");
testReverseLookup("fe00::0", "ip6-localnet");
testReverseLookup("fe00:0:0:0:0:0:0:0", "ip6-localnet");
testReverseLookup("fe00:0000:0000:0000:0000:0000:0000:0000", "ip6-localnet");
testReverseLookup("fe80::1", "link-local-host");
testReverseLookup("fe80:000:0:00:0:000:00:1", "link-local-host");
testReverseLookup("fe80:0000:0000:0000:0000:0000:0000:0001", "link-local-host");
}
}
private static void testHostsMapping(byte[] expectedIpAddress, String hostName)
throws UnknownHostException {
InetAddress testAddress;
byte[] rawIpAddress;
testAddress = InetAddress.getByName(hostName);
System.out
.println("############################ InetAddress == "
+ testAddress);
rawIpAddress = testAddress.getAddress();
if (!Arrays.equals(rawIpAddress, expectedIpAddress)) {
System.out.println("retrieved address == "
+ Arrays.toString(rawIpAddress)
+ " not equal to expected address == "
+ Arrays.toString(expectedIpAddress));
throw new RuntimeException(
"retrieved address not equal to expected address");
}
System.out.println("retrieved address == "
+ Arrays.toString(rawIpAddress)
+ " equal to expected address == "
+ Arrays.toString(expectedIpAddress));
}
private static void testReverseLookup(String numericHost, String expectedName)
throws UnknownHostException {
String lookupResult = InetAddress.getByName(numericHost).getHostName();
if (!expectedName.equals(lookupResult)) {
throw new RuntimeException(
String.format(
"reverse lookup of \"%s\" is \"%s\", should be \"%s\"\n",
numericHost, lookupResult, expectedName));
}
}
}
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