/*

 * Copyright 2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/*

 *

 *

 * Lookup/reverse lookup class for regression test 4773521 - see

 * lookup.sh for details.

 */

import java.net.InetAddress;

import java.net.UnknownHostException;

public class Lookup {

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

        // reverse lookup

        if (args[0].equals("-q=PTR")) {

            InetAddress ia = InetAddress.getByName(args[1]);

            System.out.println(ia.getHostName());

            return;

        }

        // lookup address

        String addr;

        if (args[0].equals("-q=A")) {

            addr = args[1];

        } else {

            addr = args[0];

        }

        InetAddress ia = InetAddress.getByName(args[1]);

        System.out.println(ia.getHostAddress());

    }

}