using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace SocketSniffConsole {
    class Program {
        public static void Main(string[] args) {
            byte[] buffer = new byte[4096];
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);

            IPEndPoint endpoint = new IPEndPoint(IPAddress.Parse("192.168.0.3"), 0);
            socket.Bind(endpoint);

            socket.SetSocketOption(SocketOptionLevel.IP,
                SocketOptionName.HeaderIncluded,
                true);

            byte[] outValues = new byte[] { 1, 0, 0, 0 };
            byte[] inValues = new byte[] { 1, 0, 0, 0 };

            socket.IOControl(IOControlCode.ReceiveAll,
                inValues,
                outValues);

            while (true) {
                int read = socket.Receive(buffer);

                if (read >= buffer.Length) {
                    Console.WriteLine("The packet was too big.  I'm not going to handle it.");
                    continue;
                }

                IPPacket p = IPPacket.Parse(buffer);

                Console.WriteLine("Version: " + p.Version);
                Console.WriteLine("Protocol: " + p.Protocol.ToString());
                Console.WriteLine("Length: " + p.TotalLength);
                Console.WriteLine("Source: " + p.Source.ToString());
                Console.WriteLine("Destination: " + p.Destination.ToString());

                Console.WriteLine();
            }
        }
    }
}