// Initialize Winshock 2.2
WSAStartup(MAKEWORD(2,2),&wsaData);

// Create a new socket to make a client connection.
ConnectSocket = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);

// Initialize Servers SOCKADDR_IN
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons(port);
ServerAddr.sin_addr.s_addr = inet_addr(server_address);

// Clear the fd sets
FD_ZERO(&fdread);
FD_ZERO(&BackUpfdread);
FD_ZERO(&fdwrite);
FD_ZERO(&BackUpfdwrite);

// Asign the ListeningSocket with fdread and fdwrite.
FD_SET(ConnectSocket,&fdread);
FD_SET(ConnectSocket,&fdwrite);

// Set as maxDescriptor ListeningSocket.
maxDescriptor = ConnectSocket;

// Setup timer.
timer.tv_sec = 2;
timer.tv_usec = 5000;

// Make a connection to the server with socket s.
connect(ConnectSocket, (SOCKADDR *) &ServerAddr, sizeof(ServerAddr));

// Send the username to server.
send(ConnectSocket,username,strlen(username),0);

// Receive Welcome Message From Server (If any..)
RecvBytes = recv(ConnectSocket,RecvBuff,sizeof(RecvBuff),0);

  if(RecvBytes > 0)
 {
   printf("%s",RecvBuff);
  // Cleaning the Receive Buffer
  memset(RecvBuff,0,sizeof(RecvBuff));
 }

// Main loop starts here
for(; ;)
{
  memset(SentBuff, 0, sizeof(SentBuff));
  printf("Write: ");
  gets_s(SentBuff, sizeof(SentBuff));

  // Copy the fdread into BackUpfdread and fdwrite to BackUpfdwrite.
  BackUpfdread = fdread;
  BackUpfdwrite = fdwrite;

  SelectResults = select(maxDescriptor+1,&BackUpfdread,&BackUpfdwrite,NULL,&timer);

  if(SelectResults == -1)
  {
    perror("Client-select() error!\n");
    exit(1);
  }

 //printf("Client-select is OK\n");

 //Check if we have some data to read.
 for(i=0;i<=maxDescriptor;i++)
 { // #1
  if(FD_ISSET(i,&BackUpfdread))
  { // #2
    if(i == ConnectSocket)
    { // #3

    RecvBytes = recv(i, RecvBuff, sizeof(RecvBuff), 0);
    if(RecvBytes > 0)               {                                                             printf("%s\n",RecvBuff);
        // Cleaning the Receive Buffer
    memset(RecvBuff,0,sizeof(RecvBuff));
    }

    } // #3 end here

  } // #2 end here

  if(FD_ISSET(i,&BackUpfdwrite))
  {
     if(i == ConnectSocket)
     {
    SentBytes = send(i, SentBuff,sizeof(SentBuff),0);
    // Cleaning the Sent Buffer
    memset(SentBuff,0,sizeof(SentBuff));

     }
  }

} // #1 end here

} // Main loop ends here