Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Created on 04-Jan-2006
 * Created by Paul Gardner
 * Copyright (C) 2006 Aelitis, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program 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 for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 * 
 * AELITIS, SAS au capital de 46,603.30 euros
 * 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
 *
 */

import java.net.Inet6Address;
import java.net.InetAddress;

public class Main {
    public static boolean is6to4(InetAddress addr) {
        if (!(addr instanceof Inet6Address))
            return false;
        byte[] bytes = addr.getAddress();
        // check for the 2002::/16 prefix, i.e. 6to4
        return bytes[0] == 0x20 && bytes[1] == 0x02;
    }
}