Python ctypes 模块，FormatError() 实例源码

def FormatError(code):
        code = int(long(code))
        try:
            if GuessStringType.t_default == GuessStringType.t_ansi:
                FormatMessage = windll.kernel32.FormatMessageA
                FormatMessage.argtypes = [DWORD, LPVOID, DWORD, DWORD, LPSTR, DWORD]
                FormatMessage.restype  = DWORD
                lpBuffer = ctypes.create_string_buffer(1024)
            else:
                FormatMessage = windll.kernel32.FormatMessageW
                FormatMessage.argtypes = [DWORD, LPVOID, DWORD, DWORD, LPWSTR, DWORD]
                FormatMessage.restype  = DWORD
                lpBuffer = ctypes.create_unicode_buffer(1024)
            ##FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000
            ##FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200
            success = FormatMessage(0x1200, None, code, 0, lpBuffer, 1024)
            if success:
                return lpBuffer.value
        except Exception:
            pass
        if GuessStringType.t_default == GuessStringType.t_ansi:
            return "Error code 0x%.8X" % code
        return u"Error code 0x%.8X" % code

def inet_pton(address_family, ip_string):
        if address_family == socket.AF_INET:
            return socket.inet_aton(ip_string)

        addr = sockaddr()
        addr.sa_family = address_family
        addr_size = ctypes.c_int(ctypes.sizeof(addr))

        if WSAStringToAddressA(
                ip_string,
                address_family,
                None,
                ctypes.byref(addr),
                ctypes.byref(addr_size)
        ) != 0:
            raise socket.error(ctypes.FormatError())

        if address_family == socket.AF_INET6:
            return ctypes.string_at(addr.ipv6_addr, 16)

        raise socket.error('unknown address family')

def win_service_report_event(service_name, msg, is_error=True):
    with open('C:/sshkeys/log', 'a', encoding='utf-8') as f:
        f.write(msg + '\n')

    event_log = advapi32.RegisterEventSourceW(None, service_name)
    if not event_log:
        raise OSError('Could not report event: %s' % ctypes.FormatError())

    try:
        type_id = 0x0001 if is_error else 0x0004
        event_id = 0xc0000000 if is_error else 0x40000000
        lines = _ctypes_array(LPTSTR, [msg])

        if not advapi32.ReportEventW(
                event_log, type_id, 0, event_id, None, len(lines), 0,
                lines, None):
            raise OSError('Event reporting failed: %s' % ctypes.FormatError())
    finally:
        advapi32.DeregisterEventSource(event_log)

def win_service_main(service_name, real_main, argc, argv_raw):
    try:
        # args = [argv_raw[i].value for i in range(argc)]
        stop_event = threading.Event()
        handler = HandlerEx(functools.partial(stop_event, win_service_handler))
        h = advapi32.RegisterServiceCtrlHandlerExW(service_name, handler, None)
        if not h:
            raise OSError('Handler registration failed: %s' %
                          ctypes.FormatError())

        TODO
    except Exception as e:
        tb = traceback.format_exc()
        msg = str(e) + '\n' + tb
        win_service_report_event(service_name, msg, is_error=True)
        raise

def open(self):
        """
        Open device to query properties

        :return: context
        """
        handle = _setupapi.SetupDiCreateDeviceInfoList(None, None)
        if handle == -1:
            err_no = ctypes.GetLastError()
            raise WindowsError(err_no, ctypes.FormatError(err_no))
        try:
            dev_info = DeviceInfoData()
            if not _setupapi.SetupDiOpenDeviceInfoW(handle, ctypes.create_unicode_buffer(self._instance_id), None,
                                                    DIOD_INHERIT_CLASSDRVS, ctypes.byref(dev_info)):
                err_no = ctypes.GetLastError()
                raise WindowsError(err_no, ctypes.FormatError(err_no))
            self._handle = (handle, dev_info, self._handle)  # Stack
            yield self
        finally:
            if self._handle is not None and \
                            self._handle[0] == handle:  # If last handle is opened in this function, pop it
                self._handle = self._handle[2]
            _setupapi.SetupDiDestroyDeviceInfoList(handle)  # Close handle

def get_property_keys(self):
        """
        Get all device property keys

        :return: Iterable of device property keys
        """
        if self._handle is None:
            with self.open():
                return self.get_property_keys()

        handle, dev_info, _ = self._handle
        required_size = ctypes.c_ulong()
        if not _setupapi.SetupDiGetDevicePropertyKeys(handle, ctypes.byref(dev_info), None, 0,
                                                      ctypes.byref(required_size), 0):
            err_no = ctypes.GetLastError()
            if err_no == 122:  # ERROR_INSUFFICIENT_BUFFER
                # noinspection SpellCheckingInspection
                devpkeys = (DevicePropertyKey * required_size.value)()
                if _setupapi.SetupDiGetDevicePropertyKeys(handle, ctypes.byref(dev_info), ctypes.byref(devpkeys),
                                                          required_size.value, None, 0):
                    return list(devpkeys)
                err_no = ctypes.GetLastError()

            raise WindowsError(err_no, ctypes.FormatError(err_no))
        return []

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def win_service_report_event(service_name, msg, is_error=True):
    with open('C:/sshkeys/log', 'a', encoding='utf-8') as f:
        f.write(msg + '\n')

    event_log = advapi32.RegisterEventSourceW(None, service_name)
    if not event_log:
        raise OSError('Could not report event: %s' % ctypes.FormatError())

    try:
        type_id = 0x0001 if is_error else 0x0004
        event_id = 0xc0000000 if is_error else 0x40000000
        lines = _ctypes_array(LPTSTR, [msg])

        if not advapi32.ReportEventW(
                event_log, type_id, 0, event_id, None, len(lines), 0,
                lines, None):
            raise OSError('Event reporting failed: %s' % ctypes.FormatError())
    finally:
        advapi32.DeregisterEventSource(event_log)

def win_service_main(service_name, real_main, argc, argv_raw):
    try:
        # args = [argv_raw[i].value for i in range(argc)]
        stop_event = threading.Event()
        handler = HandlerEx(functools.partial(stop_event, win_service_handler))
        h = advapi32.RegisterServiceCtrlHandlerExW(service_name, handler, None)
        if not h:
            raise OSError('Handler registration failed: %s' %
                          ctypes.FormatError())

        TODO
    except Exception as e:
        tb = traceback.format_exc()
        msg = str(e) + '\n' + tb
        win_service_report_event(service_name, msg, is_error=True)
        raise

def inet_pton(address_family, ip_string):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))

    if WSAStringToAddressA(
            ip_string,
            address_family,
            None,
            ctypes.byref(addr),
            ctypes.byref(addr_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    if address_family == socket.AF_INET:
        return ctypes.string_at(addr.ipv4_addr, 4)
    if address_family == socket.AF_INET6:
        return ctypes.string_at(addr.ipv6_addr, 16)

    raise socket.error('unknown address family')

def _read_remote_string(self, address, as_unicode=True):
        """Reads a string from Winamp's memory address space."""
        if not self.wa_hproc:
            #print("Trying to read Winamp's memory without having found any instance!")
            return None

        buflen = 1024
        if as_unicode:
            buffer = ctypes.create_unicode_buffer(buflen)
        else:
            buffer = ctypes.create_string_buffer(buflen)
        bytes_read = ctypes.c_size_t(0)

        if not ctypes.windll.kernel32.ReadProcessMemory(
                self.wa_hproc, address, buffer, buflen, ctypes.byref(bytes_read)):
            winerr = ctypes.GetLastError()
            #print(
            #    "Failed to read memory from Winamp's memory space:",
            #    ctypes.FormatError(winerr))
            return None

        return buffer.value

def inet_pton(address_family, ip_string):
        if address_family == socket.AF_INET:
            return socket.inet_aton(ip_string)

        addr = sockaddr()
        addr.sa_family = address_family
        addr_size = ctypes.c_int(ctypes.sizeof(addr))

        if WSAStringToAddressA(
                ip_string,
                address_family,
                None,
                ctypes.byref(addr),
                ctypes.byref(addr_size)
        ) != 0:
            raise socket.error(ctypes.FormatError())

        if address_family == socket.AF_INET6:
            return ctypes.string_at(addr.ipv6_addr, 16)

        raise socket.error('unknown address family')

def inet_ntop(address_family, packed_ip):
        if address_family == socket.AF_INET:
            return socket.inet_ntoa(packed_ip)

        addr = sockaddr()
        addr.sa_family = address_family
        addr_size = ctypes.c_int(ctypes.sizeof(addr))
        ip_string = ctypes.create_string_buffer(128)
        ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

        if address_family == socket.AF_INET6:
            if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
                raise socket.error('packed IP wrong length for inet_ntoa')
            ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
        else:
            raise socket.error('unknown address family')

        if WSAAddressToStringA(
                ctypes.byref(addr),
                addr_size,
                None,
                ip_string,
                ctypes.byref(ip_string_size)
        ) != 0:
            raise socket.error(ctypes.FormatError())

        return ip_string[:ip_string_size.value - 1]

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def win_error(error, filename):
            exc = WindowsError(error, ctypes.FormatError(error))
            exc.filename = filename
            return exc

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def win_install_service(service_name, cmdline):
    manager = win_OpenSCManager()
    try:
        h = advapi32.CreateServiceW(
            manager, service_name, None,
            SC_MANAGER_CREATE_SERVICE, SERVICE_WIN32_OWN_PROCESS,
            SERVICE_AUTO_START, SERVICE_ERROR_NORMAL,
            cmdline, None, None, None, None, None)
        if not h:
            raise OSError('Service creation failed: %s' % ctypes.FormatError())

        advapi32.CloseServiceHandle(h)
    finally:
        advapi32.CloseServiceHandle(manager)

def win_uninstall_service(service_name):
    manager = win_OpenSCManager()
    try:
        h = advapi32.OpenServiceW(manager, service_name, DELETE)
        if not h:
            raise OSError('Could not find service %s: %s' % (
                service_name, ctypes.FormatError()))

        try:
            if not advapi32.DeleteService(h):
                raise OSError('Deletion failed: %s' % ctypes.FormatError())
        finally:
            advapi32.CloseServiceHandle(h)
    finally:
        advapi32.CloseServiceHandle(manager)

def win_service_set_status(handle, status_code):
    svcStatus = SERVICE_STATUS()
    svcStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS
    svcStatus.dwCurrentState = status_code
    svcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP

    svcStatus.dwServiceSpecificExitCode = 0

    if not advapi32.SetServiceStatus(handle, ctypes.byref(svcStatus)):
        raise OSError('SetServiceStatus failed: %r' % ctypes.FormatError())

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def inet_pton(address_family, ip_string):
        addr = _sockaddr()
        ip_string = ip_string.encode('ascii')
        addr.sa_family = address_family
        addr_size = ctypes.c_int(ctypes.sizeof(addr))

        if WSAStringToAddressA(ip_string, address_family, None, ctypes.byref(addr), ctypes.byref(addr_size)) != 0:
            raise socket.error(ctypes.FormatError())

        if address_family == socket.AF_INET:
            return ctypes.string_at(addr.ipv4_addr, 4)
        if address_family == socket.AF_INET6:
            return ctypes.string_at(addr.ipv6_addr, 16)
        raise socket.error('unknown address family')

def __init__(self, guid="{00000000-0000-0000-0000-000000000000}"):
        super().__init__()
        if isinstance(guid, str):
            ret = _ole32.CLSIDFromString(ctypes.create_unicode_buffer(guid), ctypes.byref(self))
            if ret < 0:
                err_no = ctypes.GetLastError()
                raise WindowsError(err_no, ctypes.FormatError(err_no), guid)
        else:
            ctypes.memmove(ctypes.byref(self), bytes(guid), ctypes.sizeof(self))

def __str__(self):
        s = ctypes.c_wchar_p()
        ret = _ole32.StringFromCLSID(ctypes.byref(self), ctypes.byref(s))
        if ret < 0:
            err_no = ctypes.GetLastError()
            raise WindowsError(err_no, ctypes.FormatError(err_no))
        ret = str(s.value)
        _ole32.CoTaskMemFree(s)
        return ret

def inet_ntop(address_family, packed_ip):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))
    ip_string = ctypes.create_string_buffer(128)
    ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

    if address_family == socket.AF_INET:
        if len(packed_ip) != ctypes.sizeof(addr.ipv4_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv4_addr, packed_ip, 4)
    elif address_family == socket.AF_INET6:
        if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
    else:
        raise socket.error('unknown address family')

    if WSAAddressToStringA(
            ctypes.byref(addr),
            addr_size,
            None,
            ip_string,
            ctypes.byref(ip_string_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    return ip_string[:ip_string_size.value - 1]

# Adding our two functions to the socket library

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def get_exception_description(self):
        """
        @rtype:  str
        @return: User-friendly name of the exception.
        """
        code = self.get_exception_code()
        description = self.__exceptionDescription.get(code, None)
        if description is None:
            try:
                description = 'Exception code %s (%s)'
                description = description % (HexDump.integer(code),
                                             ctypes.FormatError(code))
            except OverflowError:
                description = 'Exception code %s' % HexDump.integer(code)
        return description

def inet_ntop(address_family, packed_ip):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))
    ip_string = ctypes.create_string_buffer(128)
    ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

    if address_family == socket.AF_INET:
        if len(packed_ip) != ctypes.sizeof(addr.ipv4_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv4_addr, packed_ip, 4)
    elif address_family == socket.AF_INET6:
        if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
    else:
        raise socket.error('unknown address family')

    if WSAAddressToStringA(
            ctypes.byref(addr),
            addr_size,
            None,
            ip_string,
            ctypes.byref(ip_string_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    return ip_string[:ip_string_size.value - 1]

# Adding our two functions to the socket library

def get_exception_description(self):
        """
        @rtype:  str
        @return: User-friendly name of the exception.
        """
        code = self.get_exception_code()
        description = self.__exceptionDescription.get(code, None)
        if description is None:
            try:
                description = 'Exception code %s (%s)'
                description = description % (HexDump.integer(code),
                                             ctypes.FormatError(code))
            except OverflowError:
                description = 'Exception code %s' % HexDump.integer(code)
        return description

def WinError(code=None, descr=None):
        if code is None:
            code = ctypes.GetLastError()
        if descr is None:
            descr = ctypes.FormatError(code).strip()
        return WindowsError(code, descr)

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def inet_ntop(address_family, packed_ip):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))
    ip_string = ctypes.create_string_buffer(128)
    ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

    if address_family == socket.AF_INET:
        if len(packed_ip) != ctypes.sizeof(addr.ipv4_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv4_addr, packed_ip, 4)
    elif address_family == socket.AF_INET6:
        if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
    else:
        raise socket.error('unknown address family')

    if WSAAddressToStringA(
            ctypes.byref(addr),
            addr_size,
            None,
            ip_string,
            ctypes.byref(ip_string_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    return ip_string[:ip_string_size.value - 1]

# Adding our two functions to the socket library

def inet_ntop(address_family, packed_ip):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))
    ip_string = ctypes.create_string_buffer(128)
    ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

    if address_family == socket.AF_INET:
        if len(packed_ip) != ctypes.sizeof(addr.ipv4_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv4_addr, packed_ip, 4)
    elif address_family == socket.AF_INET6:
        if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
    else:
        raise socket.error('unknown address family')

    if WSAAddressToStringA(
            ctypes.byref(addr),
            addr_size,
            None,
            ip_string,
            ctypes.byref(ip_string_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    return ip_string[:ip_string_size.value - 1]

# Adding our two functions to the socket library

def inet_ntop(address_family, packed_ip):
    addr = sockaddr()
    addr.sa_family = address_family
    addr_size = ctypes.c_int(ctypes.sizeof(addr))
    ip_string = ctypes.create_string_buffer(128)
    ip_string_size = ctypes.c_int(ctypes.sizeof(ip_string))

    if address_family == socket.AF_INET:
        if len(packed_ip) != ctypes.sizeof(addr.ipv4_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv4_addr, packed_ip, 4)
    elif address_family == socket.AF_INET6:
        if len(packed_ip) != ctypes.sizeof(addr.ipv6_addr):
            raise socket.error('packed IP wrong length for inet_ntoa')
        ctypes.memmove(addr.ipv6_addr, packed_ip, 16)
    else:
        raise socket.error('unknown address family')

    if WSAAddressToStringA(
            ctypes.byref(addr),
            addr_size,
            None,
            ip_string,
            ctypes.byref(ip_string_size)
    ) != 0:
        raise socket.error(ctypes.FormatError())

    return ip_string[:ip_string_size.value - 1]

# Adding our two functions to the socket library

def _lock_file(f, exclusive):
        overlapped = OVERLAPPED()
        overlapped.Offset = 0
        overlapped.OffsetHigh = 0
        overlapped.hEvent = 0
        f._lock_file_overlapped_p = ctypes.pointer(overlapped)
        handle = msvcrt.get_osfhandle(f.fileno())
        if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0,
                          whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Locking file failed: %r' % ctypes.FormatError())

def _unlock_file(f):
        assert f._lock_file_overlapped_p
        handle = msvcrt.get_osfhandle(f.fileno())
        if not UnlockFileEx(handle, 0,
                            whole_low, whole_high, f._lock_file_overlapped_p):
            raise OSError('Unlocking file failed: %r' % ctypes.FormatError())

def updateStringBundleInExe( exe_filename, stringtable_id_name, all_strings ):
    stringtable_id = resource_ids[ stringtable_id_name ]

    while len(all_strings) != STRINGTABLE_BUNDLE_SIZE:
        all_strings.append( '' )

    all_strtab_data = []
    for s in all_strings:
        count = struct.pack( '<H', len( s ) )
        all_strtab_data.append( count )
        if len(s) > 0:
            data = s.encode( 'utf-16' )[2:]
            all_strtab_data.append( data )

    strtab_data = b''.join( all_strtab_data )

    language = 0

    strtab_id = stringtable_id//STRINGTABLE_BUNDLE_SIZE + 1

    h = BeginUpdateResource( exe_filename, False )
    #print( h, ctypes.FormatError() )

    rc = UpdateResource( h, RT_STRING, strtab_id, language, strtab_data, len(strtab_data) )
    #print( rc, ctypes.FormatError() )

    rc = EndUpdateResource( h, False );
    #print( rc, ctypes.FormatError() )

    return 0

def updateVersionInfoInExe( exe_filename, version, description ):
    h = BeginUpdateResource( exe_filename, False )
    language = 0

    rc = UpdateResource( h, RT_VERSION, 1, language, data, len(data) )
    print( rc, ctypes.FormatError() )

    rc = EndUpdateResource( h, False );
    print( rc, ctypes.FormatError() )
    return 0