public static void Main(string[] args)
{
var mac = new MacAddress("a1:b2:c3:d4:e5:f6");
WakeOnLan.WakeUp(mac);
Console.WriteLine(mac);
Console.ReadKey();
}
/// <summary>
/// Wakes the computer with a given MacAddress.
/// </summary>
/// <param name="macAddress">The computer to wake up.</param>
/// <param name="port">The port to send the packet on. Defaults to UDP 9.</param>
public static void WakeUp(MacAddress macAddress, int port = WakeOnLanPort)
{
try
{
var packet = ConstructPacket(macAddress);
var client = new UdpClient();
client.Connect(IPAddress.Broadcast, port);
client.Send(packet, packet.Length);
}
catch (Exception e)
{
throw new WakeOnLanFailedException(macAddress, e);
}
}
/// <summary>
/// Constructs a WakeOnLan magic packet.
/// </summary>
/// <param name="macAddress">MacAddress to construct the packet from.</param>
/// <returns>A byte[] representing the magic packet.</returns>
private static byte[] ConstructPacket(MacAddress macAddress)
{
if (macAddress == null)
{
throw new ArgumentNullException(nameof(macAddress), "A MacAddress must be provided.");
}
var packet = new byte[WakeOnLanPacketSize];
for (var i = 0; i < MacAddress.MacAddressLength; i++)
{
packet[i] = 0xFF; // packet header
}
// packet body
for (var i = 1; i < 17; i++)
{
Array.Copy(macAddress.MacAddressBytes, 0, packet, i * MacAddress.MacAddressLength, MacAddress.MacAddressLength);
}
return(packet);
}
