Client

 #include "stdafx.h"
#include <WINSOCK2.H>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")
#define SERVER_ADDRESS  "127.0.0.1"
#define PORT  5150
#define MSGSIZE  1024
int main(int argc, char* argv[])
{
 WSADATA wsaData;
 SOCKET sClient;
 SOCKADDR_IN server;
 char szMessage[MSGSIZE];
 int ret;
 // Initialize windows socket library
 WSAStartup(0x0202, &wsaData);
 // Create client socket
 sClient = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
 // Connect to server
 memset(&server, 0, sizeof(SOCKADDR_IN));
 server.sin_family = AF_INET;
 server.sin_addr.S_un.S_addr = inet_addr(SERVER_ADDRESS);
 server.sin_port = htons(PORT);
 connect(sClient, (sockaddr*)&server, sizeof(SOCKADDR_IN));
 while (TRUE)
 {
  printf("Send:");
  gets(szMessage);
  // Send message
  send(sClient, szMessage, strlen(szMessage), 0);
  // Receive message
  ret = recv(sClient, szMessage, MSGSIZE, 0);
  szMessage[ret] = '\0';
  printf("Received [%d bytes]: '%s'\n", ret, szMessage);
 }
 // Clean up
 closesocket(sClient);
 WSACleanup();
 return 0;
}