C / C++ / MFC

SOCKET ServerSocket;
SOCKADDR_IN server_address;
FD_SET masterSet;
HANDLE ThreadHandle;
DWORD ThreadID;
int RetVal = 0;

DWORD WINAPI acceptingThreadProcedure(LPVOID ServerSocket)
{
	SOCKET* Socket = (SOCKET*)ServerSocket;
	SOCKET ClientSocket;

	while(1)
	{
		ClientSocket = accept(*Socket,0,0);

		FD_SET(ClientSocket,&masterSet);
		printf("Client on %d connected\n",ClientSocket);
	}

	return TRUE;
}
int InitServer()
{
	WSADATA wsaData;
 
	WSAStartup(MAKEWORD(1,0),&wsaData);

	ServerSocket = socket(PF_INET,SOCK_STREAM,0);

	server_address.sin_family = AF_INET;
	server_address.sin_port = 4200;
	server_address.sin_addr.s_addr = INADDR_ANY;	

	bind(ServerSocket,(SOCKADDR*)&server_address,sizeof(SOCKADDR_IN));

	listen(ServerSocket,5);
	
	ThreadHandle = CreateThread(NULL,0,acceptingThreadProcedure,&ServerSocket,0,&ThreadID);

	Sleep(100);

	FD_ZERO(&masterSet);

	FD_SET pollingSet;
	timeval waitTime;
	waitTime.tv_sec = 0;
	waitTime.tv_usec = 0;
	SOCKET clientSocket;
	unsigned long BufferSize;

	while(1) 
	{
		pollingSet = masterSet;
		if(pollingSet.fd_count == 0)
			continue;

		RetVal = select(pollingSet.fd_count,&pollingSet,NULL,NULL,&waitTime);

		if(RetVal == 0)
			continue;

		for(unsigned int i = 0; i < pollingSet.fd_count; i++)
		{
			clientSocket = pollingSet.fd_array[i];

			//This was his Idea
			recv(clientSocket,(LPSTR)&BufferSize,sizeof(BufferSize),0);

			BufferSize = ntohl(BufferSize);
			LPSTR Buffer = new char[BufferSize];

			recv(clientSocket,(LPSTR)Buffer,BufferSize,0);

			Buffer[BufferSize] = '\0';
			printf("Client %d: %s\n",clientSocket,Buffer);
			delete[] Buffer;
		}
	}
}

__declspec( dllexport ) String operator+( const String& lhs, const int& rhs );

__declspec( dllexport ) String operator+( const String& lhs, const int& rhs )
{
  return ....//rest of code omitted
}