Send Packet : Http Connection « Network « Android

Send Packet

 * Copyright (c) 2011 Benjamin Gmeiner.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v2.0
 * which accompanies this distribution, and is available at
 * Contributors:
 *     Benjamin Gmeiner - Project Owner
 *      Copyright (C) 2005-2009 Team XBMC
 *  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, 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
 *  GNU General Public License for more details.
 *  You should have received a copy of the GNU General Public License
 *  along with XBMC Remote; see the file license.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.

//package com.mediaportal.ampdroid.utils;


import android.util.Log;

public class WakeOnLan {
   public static Boolean sendMagicPacket(String _mac, String _ip, int _port) {
      try {
         byte[] macBytes = getMacBytes(_mac);
         byte[] bytes = new byte[6 + 16 * macBytes.length];
         for (int i = 0; i < 6; i++) {
            bytes[i] = (byte) 0xff;
         for (int i = 6; i < bytes.length; i += macBytes.length) {
            System.arraycopy(macBytes, 0, bytes, i, macBytes.length);

         InetAddress address = InetAddress.getByName(_ip);
         DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, _port);
         DatagramSocket socket = new DatagramSocket();
         return true;
      } catch (Exception e) {
         return false;

   public static Boolean sendMagicPacket(String _mac, int _port) {
      return sendMagicPacket(_mac, "", _port);

   public static Boolean sendMagicPacket(String _mac) {
      return sendMagicPacket(_mac, "", 9);

   private static byte[] getMacBytes(String macStr) throws IllegalArgumentException {
      byte[] bytes = new byte[6];
      String[] hex = macStr.split("(\\:|\\-)");
      if (hex.length != 6) {
         throw new IllegalArgumentException("Invalid MAC address.");
      try {
         for (int i = 0; i < 6; i++) {
            bytes[i] = (byte) Integer.parseInt(hex[i], 16);
      } catch (NumberFormatException e) {
         throw new IllegalArgumentException("Invalid hex digit in MAC address.");
      return bytes;


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