Перевод с С# на С++

#include <stdio.h>
#include <winsock2.h>
#include <windows.h>
#define MY_PORT 666 
#define PRINTNUSERS if (nclients) printf("%d user online\n",nclients);else printf("No User on line\n");
DWORD WINAPI SexToClient(LPVOID client_socket);
int nclients = 0;
int main(int argc, char* argv[])
{
char buff[1024];
printf("TCP SERVER DEMO\n");
if (WSAStartup(0x0202,(WSADATA *) &buff[0])) 
{
printf("Error WSAStartup %d\n",WSAGetLastError());
return 1;
}
SOCKET mysocket;
if ((mysocket=socket(AF_INET,SOCK_STREAM,0))<0)
{
printf("Error socket %d\n",WSAGetLastError());
WSACleanup();
return 1;
}
sockaddr_in local_addr;
local_addr.sin_family=AF_INET;
local_addr.sin_port=htons(MY_PORT);
local_addr.sin_addr.s_addr=0; 
if (bind(mysocket,(sockaddr *) &local_addr, sizeof(local_addr)))
{
printf("Error bind %d\n",WSAGetLastError());
closesocket(mysocket);
WSACleanup();
return 1;
}
if (listen(mysocket, 0x100))
{
printf("Error listen %d\n",WSAGetLastError());
closesocket(mysocket);
WSACleanup();
return 1;
}
printf("Ожидание подключений…\n");
SOCKET client_socket;
sockaddr_in client_addr;
int client_addr_size=sizeof(client_addr);
while((client_socket=accept(mysocket, (sockaddr *) &client_addr, &client_addr_size)))
{
nclients++;
HOSTENT *hst;
hst=gethostbyaddr((char *) &client_addr.sin_addr.s_addr,4,AF_INET);
printf("+%s [%s] new connect!\n",
(hst)?hst>h_name:"",inet_ntoa(client_addr.sin_addr));
PRINTNUSERS
DWORD thID;
CreateThread(NULL,NULL,SexToClient,&client_socket,NULL,&thID);
}
return 0;
}
DWORD WINAPI SexToClient(LPVOID client_socket)
{
SOCKET my_sock;
my_sock=((SOCKET *) client_socket)[0];
char buff[20*1024];
#define sHELLO "Hello, Sailor\r\n"
send(my_sock,sHELLO,sizeof(sHELLO),0);
while( (int bytes_recv=recv(my_sock,&buff[0],sizeof(buff),0)) &&
bytes_recv !=SOCKET_ERROR)
send(my_sock,&buff[0],bytes_recv,0);
nclients; 
printf("disconnect\n"); PRINTNUSERS
closesocket(my_sock);
return 0;
}