mirror of
https://github.com/python/cpython
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89 lines
2.7 KiB
Python
89 lines
2.7 KiB
Python
'''
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This script gets the version number from ucrtbased.dll and checks
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whether it is a version with a known issue.
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'''
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import sys
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from ctypes import (c_buffer, POINTER, byref, create_unicode_buffer,
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Structure, WinDLL)
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from ctypes.wintypes import DWORD, HANDLE
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class VS_FIXEDFILEINFO(Structure):
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_fields_ = [
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("dwSignature", DWORD),
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("dwStrucVersion", DWORD),
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("dwFileVersionMS", DWORD),
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("dwFileVersionLS", DWORD),
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("dwProductVersionMS", DWORD),
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("dwProductVersionLS", DWORD),
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("dwFileFlagsMask", DWORD),
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("dwFileFlags", DWORD),
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("dwFileOS", DWORD),
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("dwFileType", DWORD),
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("dwFileSubtype", DWORD),
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("dwFileDateMS", DWORD),
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("dwFileDateLS", DWORD),
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]
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kernel32 = WinDLL('kernel32')
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version = WinDLL('version')
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if len(sys.argv) < 2:
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print('Usage: validate_ucrtbase.py <ucrtbase|ucrtbased>')
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sys.exit(2)
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try:
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ucrtbased = WinDLL(sys.argv[1])
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except OSError:
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print('Cannot find ucrtbased.dll')
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# This likely means that VS is not installed, but that is an
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# obvious enough problem if you're trying to produce a debug
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# build that we don't need to fail here.
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sys.exit(0)
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# We will immediately double the length up to MAX_PATH, but the
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# path may be longer, so we retry until the returned string is
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# shorter than our buffer.
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name_len = actual_len = 130
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while actual_len == name_len:
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name_len *= 2
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name = create_unicode_buffer(name_len)
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actual_len = kernel32.GetModuleFileNameW(HANDLE(ucrtbased._handle),
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name, len(name))
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if not actual_len:
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print('Failed to get full module name.')
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sys.exit(2)
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size = version.GetFileVersionInfoSizeW(name, None)
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if not size:
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print('Failed to get size of version info.')
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sys.exit(2)
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ver_block = c_buffer(size)
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if (not version.GetFileVersionInfoW(name, None, size, ver_block) or
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not ver_block):
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print('Failed to get version info.')
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sys.exit(2)
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pvi = POINTER(VS_FIXEDFILEINFO)()
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if not version.VerQueryValueW(ver_block, "", byref(pvi), byref(DWORD())):
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print('Failed to get version value from info.')
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sys.exit(2)
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ver = (
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pvi.contents.dwProductVersionMS >> 16,
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pvi.contents.dwProductVersionMS & 0xFFFF,
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pvi.contents.dwProductVersionLS >> 16,
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pvi.contents.dwProductVersionLS & 0xFFFF,
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)
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print('{} is version {}.{}.{}.{}'.format(name.value, *ver))
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if ver < (10, 0, 10586):
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print('WARN: ucrtbased contains known issues. '
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'Please update the Windows 10 SDK.')
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print('See:')
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print(' http://bugs.python.org/issue27705')
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print(' https://developer.microsoft.com/en-US/windows/downloads/windows-10-sdk')
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sys.exit(1)
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