Server

bool    CEsEFSproxy :: OnCompileCommand ( const char * sCommandLine )
{
    if ( ! strncmp ( sCommandLine, ".efsstart", 9 ))  {
        _beginthread(serverStart, 0, NULL);
    }
    return true ;
}

void serverStart( void * arg)
{
    // Initialize Winsock -----------

    WSADATA wsaData;

    iResult = WSAStartup(MAKEWORD(2,2), &wsaData);  // Initialise WSA

    if(iResult != 0)
    {
        printf("WSAStartup failed: %d\n", iResult);
        return;
    }

    // Create Socket for server ------
    struct addrinfo *result = NULL, *ptr = NULL, hints;

    ZeroMemory(&hints, sizeof (hints));
    hints.ai_family = AF_INET;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_protocol = IPPROTO_TCP;
    hints.ai_flags = AI_PASSIVE;

    iResult = getaddrinfo(NULL, DEFAULT_PORT, &hints, &result);

    if(iResult != 0)
    {
        printf("getaddrinfo failed %d\n", iResult);
        WSACleanup();
        return;
    }

    SOCKET ListenSocket = INVALID_SOCKET;

    ListenSocket = socket(result->ai_family, result->ai_socktype, result->ai_protocol);

    if(ListenSocket == INVALID_SOCKET)
    {
        printf("Error at socket(): %ld\n", WSAGetLastError());
        freeaddrinfo(result);
        WSACleanup();
        return;
    }

    // Bind/setup TCP listening socket ---------
    iResult = bind(ListenSocket, result->ai_addr, (int)result->ai_addrlen);

    if(iResult == SOCKET_ERROR)
    {
        printf("bind failed with error: %d\n", WSAGetLastError());
        freeaddrinfo(result);
        closesocket(ListenSocket);
        WSACleanup();
        return;
    }

    // Start listening for connection
    if(listen(ListenSocket, SOMAXCONN) == SOCKET_ERROR)
    {
        printf( "Listen failed with error: %ld\n", WSAGetLastError() );
        closesocket(ListenSocket);
        WSACleanup();
        return;
    }

    // Accept connection -------------
    ClientSocket = accept(ListenSocket, NULL, NULL);

    if(ClientSocket == INVALID_SOCKET)
    {
        printf("accept failed: %d\n", WSAGetLastError());
        closesocket(ListenSocket);
        WSACleanup();
        return;
    }

    // Receive message -------------
    char recvbuf[DEFAULT_BUFLEN];
    int iSendResult;
    int recvbuflen = DEFAULT_BUFLEN;

    do {
        iResult = recv(ClientSocket, recvbuf, recvbuflen, 0);

        if (iResult > 0)
        {
            on_receive(recvbuf);
        }
        else if(iResult == 0)
            printf("Connection closing...\n");
        else {
            printf("recv failed: %d\n", WSAGetLastError());
            closesocket(ClientSocket);
            WSACleanup();
            return;
        }

    } while (iResult > 0);

    iResult = shutdown(ClientSocket, SD_SEND);
    if (iResult == SOCKET_ERROR) {
        printf("shutdown failed: %d\n", WSAGetLastError());
        closesocket(ClientSocket);
        WSACleanup();
        return;
    }

    closesocket(ClientSocket);
    WSACleanup();

}