/*

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

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 */

/* @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

 * @run main/othervm -Dsun.net.inetaddr.ttl=0  InternalNameServiceWithHostsFileTest

 */

import java.net.InetAddress;

import java.net.UnknownHostException;

import java.util.Arrays;

public class InternalNameServiceWithHostsFileTest {

    public static void main(String args[]) throws Exception {

        // System.getProperty("test.src", ".");

        String hostsFileName = System.getProperty("test.src", ".")

                + "/TestHosts-III";

        System.setProperty("jdk.net.hosts.file", hostsFileName);

        System.setProperty("sun.net.inetaddr.ttl", "0");

        // 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 };

        try {

            // 10.2.3.4  testHost.testDomain

            testHostsMapping(expectedIpv4Address, "testHost.testDomain");

            // ::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");

        } catch (UnknownHostException uhEx) {

            System.out.println("UHE unexpected caught == " + uhEx.getMessage());

        }

    }

    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));

    }

}