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Infinidat / infi.diskmanagement

Windows Disk Management wrapping in Python
BSD 3-Clause "New" or "Revised" License
12 stars 6 forks source link

Readme example not working (access is denied) #3

Open brunolalb opened 3 years ago

brunolalb commented 3 years ago

Hello, I'm trying to use the lib to format a USB Disk connected to my PC. I began by doing everything manually, but already got some problems. disk.is_offline() fails with:

Traceback (most recent call last): File "", line 1, in File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\diskmanagement\disk__init.py", line 460, in is_offline return self._io.ioctl_disk_get_disk_attributes().Attributes & constants.DISK_ATTRIBUTE_OFFLINE File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\diskmanagement\ioctl__init.py", line 129, in ioctl_disk_get_disk_attributes self.ioctl(infi.wioctl.constants.IOCTL_DISK_GET_DISK_ATTRIBUTES, 0, 0, buffer, size) File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\wioctl\init__.py", line 40, in ioctl with self.open_handle() as handle: File "C:\Python\WPy64-3850\python-3.8.5.amd64\lib\contextlib.py", line 113, in enter return next(self.gen) File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\wioctl__init__.py", line 36, in open_handle with open_handle(self.device_path, self._open_generic, self._open_shared) as handle: File "C:\Python\WPy64-3850\python-3.8.5.amd64\lib\contextlib.py", line 113, in enter return next(self.gen) File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\wioctl\init.py", line 12, in open_handle handle = api.CreateFileW(ctypes.create_unicode_buffer(device_path), File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\cwrap\init.py", line 138, in new__ return_value = function(*args[1:], **kwargs) File "C:\bruno\dls_testbench\venv_385\lib\site-packages\infi\wioctl\api.py", line 16, in errcheck raise InvalidHandle(last_error) infi.wioctl.errors.InvalidHandle: 5, Access is denied.

Also this

infi\diskmanagement\ioctl__init__.py @ line 128

buffer = ctypes.c_buffer('\x00' * size, size) doesn't work and I changed to buffer = ctypes.create_string_buffer(bytes('\x00' * size, encoding='ascii'), size)