bpo-46716: Use strict unsigned long conversion for DWORD values#32081
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jkloth wants to merge 1 commit intopython:mainfrom
Open
bpo-46716: Use strict unsigned long conversion for DWORD values#32081jkloth wants to merge 1 commit intopython:mainfrom
jkloth wants to merge 1 commit intopython:mainfrom
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Maybe we should start to gradually add test cases for @unittest.skipUnless(sys.platform == "win32", "Win32 specific tests")
class Win32APITests(unittest.TestCase):
def test_dword_convert_negative(self):
with self.assertRaises(ValueError):
for h in _winapi.CreatePipe(None, -1):
_winapi.CloseHandle(h)
def test_dword_convert_overflow(self):
with self.assertRaises(OverflowError):
for h in _winapi.CreatePipe(None, 1 << 32):
_winapi.CloseHandle(h) |
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serhiy-storchaka
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The DWORD converter is also used in winreg.c and overlapped.c.
Comment on lines
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| class DWORD_converter(unsigned_long_converter): | ||
| type = 'DWORD' |
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You can use DWORD(bitwise=True) instead of DWORD in places where you want to keep the old behavior.
Or you can define non-strict by default completely compatible converter:
class DWORD_converter(unsigned_long_converter):
type = 'DWORD'
def converter_init(self, *, bitwise: bool = True) -> None:
super().converter_init(bitwise=bitwise)and use DWORD(bitwise=False) if you need a strict conversion.
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The second part of the fix for negative timeouts.
This PR should not be backported for the reasons I state here: #32079 (comment)
To further emphasize this, see the additional change required in this PR for use of
-1to denoteINFINITE.https://bugs.python.org/issue46716