i am using this code
first class
public class listen
{
TcpListener server=null;
Thread tcpthread=null;
client[] cl=new client[3];
public listen()
{
//
// TODO: Add constructor logic here
//
}
public void startlisten()
{
Int32 port = 3310;
IPAddress localAddr = IPAddress.Parse("192.168.0.6");
// TcpListener server = new TcpListener(port);
server = new TcpListener(localAddr, port);
// Start listening for client requests.
server.Start();
// Enter the listening loop.
for(int i=0;i<3;i++)
{
cl[i]=new client();
cl[i].status=true;
}
Boolean flag;
while(true)
{
try
{
flag=false;
// Perform a blocking call to accept requests.
// You could also user server.AcceptSocket() here.
for(int i=0;i<3;i++)
{
if(cl[i].status==true)
{
cl[i]= new client(server.AcceptTcpClient());
tcpthread=new Thread(new ThreadStart(cl[i].getClient));
tcpthread.Start();
flag=true;
break;
}
}
if(flag!=true)
{
//MessageBox.Show("All Clients Busy");
}
}
catch(Exception se)
{
}
}
}
public void stoplisten()
{
server.Stop();
}
}
second class
public class client
{
TcpClient tcpClient;
public Boolean status;
// Buffer for reading data
Byte[] bytes = new Byte[256];
String data = null;
IPAddress localAddr = IPAddress.Parse("192.168.0.6");
public client()
{ //
// TODO: Add constructor logic here
//
//status=true;
}
public client(TcpClient Client)
{
tcpClient =Client;
//
// TODO: Add constructor logic here
//
status=false;
}
public void getClient()
{
try
{
data = null;
// Get a stream object for reading and writing
NetworkStream stream = tcpClient.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);
// Process the data sent by the client.
string replyMsg = data;
clamdCommand x=new clamdCommand();
replyMsg=x.Command(replyMsg);
int
lowerport=int.Parse(ConfigurationSettings.AppSettings.Get("lowerport"));
int
upperport=int.Parse(ConfigurationSettings.AppSettings.Get("upperport"));
for(int y=lowerport;y<upperport;y++)
{
if(replyMsg==y.ToString())
{
replyMsg=replyMsg+"\r\n\0";
byte[] msg = System.Text.Encoding.ASCII.GetBytes(replyMsg);
// Send back a response.
stream.Write(msg, 0, msg.Length);
TcpListener listener=new TcpListener(localAddr,y);
listener.Start();
// Buffer for reading data
Byte[] bs = new Byte[256];
String ds = null;
// Enter the listening loop.
while(true)
{ // Perform a blocking call to accept requests.
// You could also user server.AcceptSocket() here.
TcpClient bufferclient = listener.AcceptTcpClient();
ds = null;
// Get a stream object for reading and writing
NetworkStream strm = bufferclient.GetStream();
int l;
// Loop to receive all the data sent by the client.
while((l = strm.Read(bs, 0, bs.Length))!=0)
{ ds = System.Text.Encoding.ASCII.GetString(bs, 0, l);
// Process the data sent by the client.
clamresults obj=new clamresults();
ds=obj.loadDatabase("STREAM",ds);
replyMsg=ds;
bufferclient.Close();
break;
}
listener.Stop();
x.freeport(y-lowerport);
break;
} break;
}
}
replyMsg=replyMsg+"\r\n\0";
byte[] msgs = System.Text.Encoding.ASCII.GetBytes(replyMsg);
// Send back a response.
stream.Write(msgs, 0, msgs.Length);
}
}
catch(Exception se)
{
MessageBox.Show(se.ToString());
}
// Shutdown and end connection
finally
{
tcpClient.Close();
status=true;
}
}
}