Socket (winsock)

#include "stdafx.h" 
#pragma comment(lib, "wsock32.lib") 
#include <windows.h>
#include <winsock2.h>
#include <conio.h>

#include <string>
#include <iostream>
using namespace std;


SOCKET      Socket;
SOCKADDR_IN addr;


int main()
{
   
   WSADATA wsa;
   int rc = WSAStartup(MAKEWORD(2, 0), &wsa);
   if(rc == SOCKET_ERROR){
      cout << "Error while starting server... \n";  
   }
   
   Socket = socket(AF_INET, SOCK_STREAM, 0);
   if(Socket == INVALID_SOCKET){
      std::cout << "Error while building socket. \n";  
   }

   addr.sin_port        = htons(1234);
   addr.sin_family      = AF_INET; 
   addr.sin_addr.s_addr = inet_addr("127.0.0.1");  
   

   if(connect(Socket, (SOCKADDR*)&addr, sizeof(SOCKADDR)) == 0)
   {
      cout << "Connection with server " << inet_ntoa(addr.sin_addr)  
           << " established." << endl << endl;  
		closesocket(Socket);
		system("pause");  
   } 
   else 
   {
      cout << "Impossible to connect to server " << inet_ntoa(addr.sin_addr)  
           << ":" << addr.sin_port  
           << ". Please check host and port. \n";  
		closesocket(Socket);
		system("pause");  
      return 1;
   }     
}