socket

#include <StdAfx.h>
#include <winsock2.h>
#include <stdio.h>
#include <iostream.h>

void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;

wVersionRequested = MAKEWORD(1,1);

err = WSAStartup(wVersionRequested, &wsaData);
if(err != 0) return;
/*if(LOBYTE(wsaData.wVersion != 1) || HIBYTE(wsaData.wVersion != 1))
{
WSACleanup( );
return;
}*///zf

SOCKET sockSrv = socket(AF_INET,SOCK_STREAM,0);
SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr = htonl(INADDR_ANY);//zf
//addrSrv.sin_addr.S_un.S_addr = htonl(127.0.0.1);
addrSrv.sin_family = AF_INET;
addrSrv.sin_port = htons(6009);

bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
listen(sockSrv,5);

SOCKADDR_IN addrClient;
int len = sizeof(SOCKADDR);

  while(1)
  {
   //char sendBuf[500]={'2','0','0','0'};
   char sendBuf[500];
   char recvBuf[500];
   SOCKET sockConn = accept(sockSrv,(SOCKADDR*)&addrClient,&len);
    sprintf(sendBuf,"20000",inet_ntoa(addrClient.sin_addr));
   send(sockConn,sendBuf,strlen(sendBuf)+1,0);
   recv(sockConn,recvBuf,100,0);
   closesocket(sockConn);
 }

}