tuenti16.cs

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

namespace Tuenti16
{
    class Program
    {
        static void Main(string[] args)
        {
            TcpClient server;
            try
            {
                server = new TcpClient("52.49.91.111", 9999);
            }
            catch (SocketException)
            {
                Console.WriteLine("Unable to connect to server");
                return;
            }

            var buffer = new byte[1024];
            NetworkStream ns = server.GetStream();
            int recv = ns.Read(buffer, 0, buffer.Length);
            var stringData = Encoding.ASCII.GetString(buffer, 0, recv);
            Console.WriteLine(stringData);

            var data = new byte[0x40];
            var len = 8;
            var st = "DECODING";

            for (int i = 0; i < len; i++)
            {
                data[i] = (byte)st[i];
                data[0x10 + i] = (byte)st[i];
            }
            data[data.Length - 4] = 1;

            while (true)
            {
                ns.Write(data, 0, data.Length);
                ns.Flush();

                buffer = new byte[1024];
                recv = ns.Read(buffer, 0, buffer.Length);
                stringData = Encoding.ASCII.GetString(buffer, 0, recv);
                Console.WriteLine(stringData);

                if (stringData.Length > 0) break;
            }

            Console.Read();
        }
    }
}