C# tcp listener modo consola

Acá va un ejemplo sencillo de un tcplistener  en C# modo consola a pedido de Matias – el negro 🙂

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

namespace tcplistener_console
    class Program
        static int Main(string[] args)
            Console.Write(“tcplistener by hvivani – 20110225 – para el negro: \r\n”);
            if (args.Length == 0)
                System.Console.WriteLine(“Parametros: Puerto IP   \r\n”);
                System.Console.WriteLine(“Ejemplo: tcplistener 2525  \r\n”);
                System.Console.WriteLine(“si tenes mas de una interfaz de red, usa la ip de dicha interfaz.  \r\n”);
                return 1;

            TcpListener server = null;
            // Set the TcpListener on port.
            Int32 port = int.Parse(args[0]);
            IPAddress localAddr = IPAddress.Parse(args[1]);

            // TcpListener server = new TcpListener(port);
            server = new TcpListener(localAddr, port);

            // Start listening for client requests.

            // Buffer for reading data
            Byte[] bytes = new Byte[256];
            String data = null;

            // Enter the listening loop.
            while (true)
                Console.Write(“Waiting for a connection… “);

                // Perform a blocking call to accept requests.
                // You could also user server.AcceptSocket() here.
                TcpClient client = server.AcceptTcpClient();

                data = null;

                // Get a stream object for reading and writing
                NetworkStream stream = client.GetStream();

                int i;

                // Loop to receive all the data sent by the client.
                while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                    // Translate data bytes to a ASCII string.
                    data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                    Console.WriteLine(“Received: {0}”, data);

                    // Process the data sent by the client.
                    data = data.ToUpper();

                    byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);

                    // Send back a response.
                    //stream.Write(msg, 0, msg.Length);
                    //Console.WriteLine(“Sent: {0}”, data);

                // Shutdown and end connection


3 thoughts on “C# tcp listener modo consola

  1. esta buena la idea pero no me anda … no soy tan experimentado en C# igual no cache por que no … el return 1; me lo bota al borrarlo y al iniciar el servidor server.Start(); se cae …

  2. Pingback: C# tcp listener multithreading / multiple connections | hvivani's website

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