Created
October 15, 2017 17:59
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Wake On Lan command line application
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| using System; | |
| using System.Diagnostics; | |
| using System.Net; | |
| using System.Net.NetworkInformation; | |
| using System.Net.Sockets; | |
| namespace WakeOnLan | |
| { | |
| internal class Program | |
| { | |
| private static int Main(string[] args) | |
| { | |
| var exitCode = MainCore(args); | |
| if (Debugger.IsAttached) Console.ReadLine(); | |
| return exitCode; | |
| } | |
| private static int MainCore(string[] args) | |
| { | |
| if (args.Length < 1 || args.Length > 2) | |
| { | |
| Console.Error.WriteLine("Error: Wrong number of parameters.\n"); | |
| PrintHelp(); | |
| return -1; | |
| } | |
| try | |
| { | |
| var mac = PhysicalAddress.Parse(args[0]); | |
| var endPoint = args.Length == 2 ? IPAddress.Parse(args[1]) : IPAddress.Broadcast; | |
| SendWakeOnLanPackage(mac, endPoint); | |
| } | |
| catch (Exception ex) | |
| { | |
| Console.Error.WriteLine("Error: " + ex); | |
| return -2; | |
| } | |
| return 0; | |
| } | |
| private static void SendWakeOnLanPackage(PhysicalAddress mac, IPAddress endPoint) | |
| { | |
| var client = new UdpClient(); | |
| // WOL packet contains a 6-bytes trailer and 16 times a 6-bytes sequence containing the MAC address. | |
| var packet = new byte[17 * 6]; | |
| // Trailer of 6 times 0xFF. | |
| for (int i = 0; i < 6; i++) | |
| { | |
| packet[i] = 0xFF; | |
| } | |
| // Body of magic packet contains 16 times the MAC address. | |
| var macBytes = mac.GetAddressBytes(); | |
| for (int i = 1; i <= 16; i++) | |
| { | |
| for (int j = 0; j < 6; j++) | |
| { | |
| packet[i * 6 + j] = macBytes[j]; | |
| } | |
| } | |
| client.Send(packet, packet.Length, new IPEndPoint(endPoint, 40000)); // Use hard-coded port | |
| } | |
| private static void PrintHelp() | |
| { | |
| Console.WriteLine($"Usage: {AppDomain.CurrentDomain.SetupInformation.ApplicationName} mac [broadcastAddress]"); | |
| Console.WriteLine(" mac The MAC address of the ethernet adapter which is responsible to wake up the device."); | |
| Console.WriteLine(" [broadcastAddress] Optional: A subnet-directed broadcast IP address."); | |
| Console.WriteLine("\nSamples:"); | |
| Console.WriteLine($" {AppDomain.CurrentDomain.SetupInformation.ApplicationName} 32-A8-F1-5F-F3-C2"); | |
| Console.WriteLine($" {AppDomain.CurrentDomain.SetupInformation.ApplicationName} 32-A8-F1-5F-F3-C2 192.168.255.255"); | |
| } | |
| } | |
| } |
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