C# console applications to talk with each other16.03.23

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

namespace ConsoleApplication1
{
    class Program
    {
        private static StreamReader reader;
        private static StreamWriter writer;

static void Main(string[] args)
        {
            //Server initialisation

Process cmdServer = new Process();

cmdServer.StartInfo.FileName = "cmd.exe";
            cmdServer.StartInfo.RedirectStandardInput = true;
            cmdServer.StartInfo.RedirectStandardOutput = true;
            cmdServer.StartInfo.UseShellExecute = false;

cmdServer.Start();

reader = cmdServer.StandardOutput;
            writer = cmdServer.StandardInput;

Thread t1 = new Thread(new ThreadStart(clientListener));
            t1.Start();
            Thread t2 = new Thread(new ThreadStart(clientWriter));
            t2.Start();
            Thread t3 = new Thread(new ThreadStart(serverListener));
            t3.Start();
            Thread t4 = new Thread(new ThreadStart(serverWriter));
            t4.Start();

}

public static void clientWriter()
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

Int32 size = 0;
            Byte[] buff = new Byte[1024];

sock.Connect(IPAddress.Parse("127.0.0.1"), 4357);
            Console.WriteLine("clientWriter connected");

while (true)
            {
                String line = Console.ReadLine();
                line += "\n";
                Char[] chars = line.ToArray();
                size = chars.Length;
                if (size > 0)
                {
                    buff = Encoding.Default.GetBytes(chars);
                    //Console.WriteLine("Sending \"" + new String(chars, 0, size) + "\"");
                    sock.Send(buff, size, 0);
                }
            }
        }

/// <summary>
        /// Local client that listens to what the server sends on port 4356
        /// </summary>
        public static void clientListener()
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

sock.Bind(new IPEndPoint(IPAddress.Any, 4356));
            sock.Listen(0);

Int32 size = 0;
            Byte[] buff = new Byte[1024];
            Char[] cbuff = new Char[1024];

while (true)
            {
                Console.WriteLine("clientListener Waiting for connection");
                sock = sock.Accept();
                Console.WriteLine("clientListener Connection accepted " + ((sock.Connected)?"Connected" : "Not Connected"));

while ((size = sock.Receive(buff)) > 0)
                {
                    for (int i = 0; i < size; i++) cbuff[i] = (Char)buff[i];
                    Console.Write(cbuff, 0, size);
                }

sock.Close();

}
        }

/// <summary>
        /// Remote server that listens to what the client sends on port 4357
        /// </summary>
        public static void serverListener()
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

sock.Bind(new IPEndPoint(IPAddress.Any, 4357));
            sock.Listen(0);

Int32 size = 0;
            Byte[] buff = new Byte[1024];
            Char[] cbuff = new Char[1024];

while (true)
            {
                Console.WriteLine("serverListener Waiting for connection");
                sock = sock.Accept();
                Console.WriteLine("serverListener Connection accepted " + ((sock.Connected) ? "Connected" : "Not Connected"));

while ((size = sock.Receive(buff)) > 0)
                {
                    for (int i = 0; i < size; i++) cbuff[i] = (Char)buff[i];
                    //Console.WriteLine("Received \"" + new String(cbuff,0,size) + "\"");
                    writer.Write(cbuff, 0, size);
                }

}
        }

/// <summary>
        /// Remote server that writes the output of the colsole application through the socket
        /// </summary>
        public static void serverWriter()
        {
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

Int32 size = 0;
            Byte[] buff = new Byte[1024];
            Char[] cbuff = new Char[1024];

sock.Connect(IPAddress.Parse("127.0.0.1"), 4356);

Console.WriteLine("serverWriter connected");

while (true)
            {
                size = reader.Read(cbuff, 0, 1024);
                if (size > 0)
                {
                    for (int i = 0; i < size; i++) buff[i] = (Byte)cbuff[i];
                    sock.Send(buff, 0, size, 0);
                }
            }
        }
    }
}

Anonymous

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.IO;
using System.Threading;

namespace ConsoleApplication1
{
    class Program
    {
        private static StreamReader reader;

static void Main(string[] args)
        {
            Process cmd = new Process();

cmd.StartInfo.FileName = "cmd.exe";
            cmd.StartInfo.RedirectStandardInput = true;
            cmd.StartInfo.RedirectStandardOutput = true;
            cmd.StartInfo.UseShellExecute = false;

cmd.Start();

reader = cmd.StandardOutput;
            StreamWriter writer = cmd.StandardInput;

Thread t = new Thread(new ThreadStart(writingThread));

t.Start();

//Just write everything we type to the cmd.exe process
            while (true) writer.Write((char)Console.Read());

}

public static void writingThread()
        {
            //Just write everything cmd.exe writes back to our console
            while (true) Console.Write((char)reader.Read());
        }
    }
}

16.03.23

https://myridia.com/console

Anonymous

C# console applications to talk with each other16.03.23

Information Epoch 1679604069