Hello, I try to implement WakeOnLan in my application. I've configured a Linux PC in my network which WakeOnLan works.
I found the attached Java implementation of WakeOnLan somewhere. This code works from my Laptop, which is in the same Network over WLAN. My G1 phone is also in the same network (verified with ifconfig) but the same code doesnt work! So, I think there is either a problem with the WLAN configuration (eg. wrong broadcast or something similar. I've done WLAN config with the original android tools) or there is a driver/os restriction... Any idea? Bye Stefan -- cya stefan deheime.ch Bifangstrasse 20 6048 Horw Tel. +41 41 340 08 56 [EMAIL PROTECTED] http://www.deheime.ch/
import java.io.*;
import java.net.*;
public class WakeOnLan {
public static final int PORT = 9;
public static void main(String[] args) {
if (args.length != 2) {
System.out.println("Usage: java WakeOnLan <broadcast-ip> <mac-address>");
System.out.println("Example: java WakeOnLan 192.168.0.255 00:0D:61:08:22:4A");
System.out.println("Example: java WakeOnLan 192.168.0.255 00-0D-61-08-22-4A");
System.exit(1);
}
String ipStr = args[0];
String macStr = args[1];
try {
byte[] macBytes = getMacBytes(macStr);
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(ipStr);
DatagramPacket packet = new DatagramPacket(bytes, bytes.length, address, PORT);
DatagramSocket socket = new DatagramSocket();
socket.send(packet);
socket.close();
System.out.println("Wake-on-LAN packet sent.");
}
catch (Exception e) {
System.out.println("Failed to send Wake-on-LAN packet: + e");
System.exit(1);
}
}
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;
}
}
smime.p7s
Description: S/MIME Cryptographic Signature
