Csharp/C Sharp/Network/Udp Server

Binary Udp Server

/*
C# Network Programming 
by Richard Blum
Publisher: Sybex 
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class BinaryUdpSrvr
{
   public static void Main()
   {
      byte[] data = new byte[1024];
      IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
      UdpClient newsock = new UdpClient(ipep);
      Console.WriteLine("Waiting for a client...");
      IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
      data = newsock.Receive(ref sender);
      Console.WriteLine("Message received from {0}:", sender.ToString());
      Console.WriteLine(Encoding.ASCII.GetString(data, 0, data.Length));
      string welcome = "Welcome to my test server";
      data = Encoding.ASCII.GetBytes(welcome);
      newsock.Send(data, data.Length, sender);
      byte[] data1 = newsock.Receive(ref sender);
      int test1 = BitConverter.ToInt32(data1, 0);
      Console.WriteLine("test1 = {0}", test1);
      byte[] data2 = newsock.Receive(ref sender);
      double test2 = BitConverter.ToDouble(data2, 0);
      Console.WriteLine("test2 = {0}", test2);
      byte[] data3 = newsock.Receive(ref sender);
      int test3 = BitConverter.ToInt32(data3, 0);      
      Console.WriteLine("test3 = {0}", test3);
      byte[] data4 = newsock.Receive(ref sender);
      bool test4 = BitConverter.ToBoolean(data4, 0);
      Console.WriteLine("test4 = {0}", test4.ToString());
      byte[] data5 = newsock.Receive(ref sender);
      string test5 = Encoding.ASCII.GetString(data5);
      Console.WriteLine("test5 = {0}", test5);
      newsock.Close();
   }
}

Simple Udp Server

/*
C# Network Programming 
by Richard Blum
Publisher: Sybex 
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class SimpleUdpSrvr
{
   public static void Main()
   {
      int recv;
      byte[] data = new byte[1024];
      IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
      Socket newsock = new Socket(AddressFamily.InterNetwork,
                      SocketType.Dgram, ProtocolType.Udp);
      newsock.Bind(ipep);
      Console.WriteLine("Waiting for a client...");
      IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
      EndPoint Remote = (EndPoint)(sender);
      recv = newsock.ReceiveFrom(data, ref Remote);
      Console.WriteLine("Message received from {0}:", Remote.ToString());
      Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
      string welcome = "Welcome to my test server";
      data = Encoding.ASCII.GetBytes(welcome);
      newsock.SendTo(data, data.Length, SocketFlags.None, Remote);
      while(true)
      {
         data = new byte[1024];
         recv = newsock.ReceiveFrom(data, ref Remote);
       
         Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
         newsock.SendTo(data, recv, SocketFlags.None, Remote);
      }
   }
}

Test Udp Server

/*
C# Network Programming 
by Richard Blum
Publisher: Sybex 
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class TestUdpSrvr
{
   public static void Main()
   {
      int recv;
      byte[] data = new byte[1024];
      IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
      Socket newsock = new Socket(AddressFamily.InterNetwork,
                      SocketType.Dgram, ProtocolType.Udp);
      newsock.Bind(ipep);
      Console.WriteLine("Waiting for a client...");
      IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
      EndPoint tmpRemote = (EndPoint)(sender);
      recv = newsock.ReceiveFrom(data, ref tmpRemote);
      Console.WriteLine("Message received from {0}:", tmpRemote.ToString());
      Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
      string welcome = "Welcome to my test server";
      data = Encoding.ASCII.GetBytes(welcome);
      newsock.SendTo(data, data.Length, SocketFlags.None, tmpRemote);
      for(int i = 0; i < 5; i++)
      {
         data = new byte[1024];
         recv = newsock.ReceiveFrom(data, ref tmpRemote);
         Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));
      }
      newsock.Close();
   }
}

Udp Server Sample

/*
C# Network Programming 
by Richard Blum
Publisher: Sybex 
ISBN: 0782141765
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class UdpSrvrSample
{
   public static void Main()
   {
      byte[] data = new byte[1024];
      IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
      UdpClient newsock = new UdpClient(ipep);
      Console.WriteLine("Waiting for a client...");
      IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
      data = newsock.Receive(ref sender);
      Console.WriteLine("Message received from {0}:", sender.ToString());
      Console.WriteLine(Encoding.ASCII.GetString(data, 0, data.Length));
      string welcome = "Welcome to my test server";
      data = Encoding.ASCII.GetBytes(welcome);
      newsock.Send(data, data.Length, sender);
      while(true)
      {
         data = newsock.Receive(ref sender);
       
         Console.WriteLine(Encoding.ASCII.GetString(data, 0, data.Length));
         newsock.Send(data, data.Length, sender);
      }
   }
}