Client Socket for Beginner

Now starts for Client part of socket application. Now I will show a simple client socket with an example:
You have to follow just few steps these are:
I. Create a Ip address object with Server Ip using Dns.
IPAddress []ipAddress= Dns.GetHostAddresses("localhost");

II. Again built an IPEndPoint with that IPAddress with same port of server.
IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);

III. Now creates a socket object with three parameter like code.
Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream,
ProtocolType.IP);


IV. Now create a byte array to send data to server.
V. Finally send that byte array to server.
clientSock.Send(clientData);

VI. To receive data from server just wait socket using Receive function, when some data received by client socket then it fill a byte array and return a interger value received bytes length.
int len = clientSock.Receive(serverData);

VII. Now close the client socket.

The complete client code is giving below:


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

namespace Client_Socket
{
class Program
{
static void Main(string[] args)
{
IPAddress []ipAddress= Dns.GetHostAddresses("localhost");
IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);
Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
clientSock.Connect(ipEnd);

string strData = "Message from client end.";
byte[] clientData = new byte[1024];
clientData = Encoding.ASCII.GetBytes(strData);
clientSock.Send(clientData);

byte[] serverData = new byte[1024];
int len = clientSock.Receive(serverData);
Console.WriteLine(Encoding.ASCII.GetString(serverData,0,len));
clientSock.Close();

Console.ReadLine();

}
}
}
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Client Socket for Beginner

Now starts for Client part of socket application. Now I will show a simple client socket with an example:
You have to follow just few steps these are:
I. Create a Ip address object with Server Ip using Dns.
IPAddress []ipAddress= Dns.GetHostAddresses("localhost");

II. Again built an IPEndPoint with that IPAddress with same port of server.
IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);

III. Now creates a socket object with three parameter like code.
Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream,
ProtocolType.IP);


IV. Now create a byte array to send data to server.
V. Finally send that byte array to server.
clientSock.Send(clientData);

VI. To receive data from server just wait socket using Receive function, when some data received by client socket then it fill a byte array and return a interger value received bytes length.
int len = clientSock.Receive(serverData);

VII. Now close the client socket.

The complete client code is giving below:


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

namespace Client_Socket
{
class Program
{
static void Main(string[] args)
{
IPAddress []ipAddress= Dns.GetHostAddresses("localhost");
IPEndPoint ipEnd = new IPEndPoint(ipAddress[0], 5656);
Socket clientSock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
clientSock.Connect(ipEnd);

string strData = "Message from client end.";
byte[] clientData = new byte[1024];
clientData = Encoding.ASCII.GetBytes(strData);
clientSock.Send(clientData);

byte[] serverData = new byte[1024];
int len = clientSock.Receive(serverData);
Console.WriteLine(Encoding.ASCII.GetString(serverData,0,len));
clientSock.Close();

Console.ReadLine();

}
}
}
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This entry was posted by Suman Biswas, on Saturday, September 29, 2007. You can leave your response.

Server Socket for beginner

For beginner socket is quite complicated. But it's not very hard to learn. Basically I've learned it within few hours. So I believe it can learn any body. However let's start.

Socket programming have two part
I. Server
II. Client.

I. Server:
To start server need to follow some steps, these are:
i. First create a IPEndPoint
[e.g. IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, port);]

ii. Create a socket object.
[Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);]

iii. Bind socket with IPEndPoint.
[sock.Bind(ipEnd);]

iv. Place socket in Listen mode (to accept call of client)
[sock.Listen(maxClientReceived);]

v. When any call comes from client Accept that call.
[Socket clientSock = sock.Accept();]
At that position Accept() return a new socket to continue communication with called client. By that socket Client-Server communication continue.

To send some data (in byte array form) to client from server just write
clientSock.send(byteArrayData);

To receive client data just write
int receivedLen= clientSock.Receive(clientData);
Receive() function reads data in byte array form from client socket and writes to 'clientData' array, and return integer value how much bytes has received.

I'm giving complete code of a simple server socket below:-


using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace beginSocketServer
{
class Program
{
static void Main(string[] args)
{
IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5656);
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
sock.Bind(ipEnd);
sock.Listen(100);
Socket clientSock = sock.Accept();
byte[] clientData = new byte[1024];
int receivedBytesLen = clientSock.Receive(clientData);
string clientDataInString = Encoding.ASCII.GetString(clientData, 0, receivedBytesLen);
Console.WriteLine("Received Data {0}", clientDataInString);
string clientStr = "Client Data Received";
byte[] sendData = new byte[1024];
sendData= Encoding.ASCII.GetBytes(clientStr);
clientSock.Send(sendData);
clientSock.Close();
Console.ReadLine();
}
}
}


To run that server code you don't need to write client code just open a webbrowser and write (I've use Mozilla Firefox 2.0.0.7) :
http://localhost:5656/

Server console output was:

Received Data GET / HTTP/1.1Host: localhost:5656User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,
*/*;q=0.5Accept-Language: en-us,en;q=0.5Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7Keep-Alive: 300Connection: keep-alive

And in web browser output was:
Client Data Received.

Ok, Simple server socket application has done. Next will give simple client socket application for beginner.


see more

Server Socket for beginner

For beginner socket is quite complicated. But it's not very hard to learn. Basically I've learned it within few hours. So I believe it can learn any body. However let's start.

Socket programming have two part
I. Server
II. Client.

I. Server:
To start server need to follow some steps, these are:
i. First create a IPEndPoint
[e.g. IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, port);]

ii. Create a socket object.
[Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);]

iii. Bind socket with IPEndPoint.
[sock.Bind(ipEnd);]

iv. Place socket in Listen mode (to accept call of client)
[sock.Listen(maxClientReceived);]

v. When any call comes from client Accept that call.
[Socket clientSock = sock.Accept();]
At that position Accept() return a new socket to continue communication with called client. By that socket Client-Server communication continue.

To send some data (in byte array form) to client from server just write
clientSock.send(byteArrayData);

To receive client data just write
int receivedLen= clientSock.Receive(clientData);
Receive() function reads data in byte array form from client socket and writes to 'clientData' array, and return integer value how much bytes has received.

I'm giving complete code of a simple server socket below:-


using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace beginSocketServer
{
class Program
{
static void Main(string[] args)
{
IPEndPoint ipEnd = new IPEndPoint(IPAddress.Any, 5656);
Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
sock.Bind(ipEnd);
sock.Listen(100);
Socket clientSock = sock.Accept();
byte[] clientData = new byte[1024];
int receivedBytesLen = clientSock.Receive(clientData);
string clientDataInString = Encoding.ASCII.GetString(clientData, 0, receivedBytesLen);
Console.WriteLine("Received Data {0}", clientDataInString);
string clientStr = "Client Data Received";
byte[] sendData = new byte[1024];
sendData= Encoding.ASCII.GetBytes(clientStr);
clientSock.Send(sendData);
clientSock.Close();
Console.ReadLine();
}
}
}


To run that server code you don't need to write client code just open a webbrowser and write (I've use Mozilla Firefox 2.0.0.7) :
http://localhost:5656/

Server console output was:

Received Data GET / HTTP/1.1Host: localhost:5656User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,
*/*;q=0.5Accept-Language: en-us,en;q=0.5Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7Keep-Alive: 300Connection: keep-alive

And in web browser output was:
Client Data Received.

Ok, Simple server socket application has done. Next will give simple client socket application for beginner.


see more

This entry was posted by Suman Biswas, on Wednesday, September 19, 2007. You can leave your response.