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-rw-r--r--Lib/test/test_winreg.py12
-rw-r--r--Misc/NEWS3
-rw-r--r--PC/winreg.c2
3 files changed, 16 insertions, 1 deletions
diff --git a/Lib/test/test_winreg.py b/Lib/test/test_winreg.py
index c7b50dd..68c12eb 100644
--- a/Lib/test/test_winreg.py
+++ b/Lib/test/test_winreg.py
@@ -323,6 +323,18 @@ class LocalWinregTests(BaseWinregTests):
finally:
DeleteKey(HKEY_CURRENT_USER, test_key_name)
+ def test_setvalueex_value_range(self):
+ # Test for Issue #14420, accept proper ranges for SetValueEx.
+ # Py2Reg, which gets called by SetValueEx, was using PyLong_AsLong,
+ # thus raising OverflowError. The implementation now uses
+ # PyLong_AsUnsignedLong to match DWORD's size.
+ try:
+ with CreateKey(HKEY_CURRENT_USER, test_key_name) as ck:
+ self.assertNotEqual(ck.handle, 0)
+ SetValueEx(ck, "test_name", None, REG_DWORD, 0x80000000)
+ finally:
+ DeleteKey(HKEY_CURRENT_USER, test_key_name)
+
@unittest.skipUnless(REMOTE_NAME, "Skipping remote registry tests")
class RemoteWinregTests(BaseWinregTests):
diff --git a/Misc/NEWS b/Misc/NEWS
index 4514739..08d3e36 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@ What's New in Python 3.2.4
Core and Builtins
-----------------
+- Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg
+ when passed a REG_DWORD value. Fixes OverflowError in winreg.SetValueEx.
+
- Issue #16602: When a weakref's target was part of a long deallocation
chain, the object could remain reachable through its weakref even though
its refcount had dropped to zero.
diff --git a/PC/winreg.c b/PC/winreg.c
index 454ea53..523ad17 100644
--- a/PC/winreg.c
+++ b/PC/winreg.c
@@ -785,7 +785,7 @@ Py2Reg(PyObject *value, DWORD typ, BYTE **retDataBuf, DWORD *retDataSize)
memcpy(*retDataBuf, &zero, sizeof(DWORD));
}
else {
- DWORD d = PyLong_AsLong(value);
+ DWORD d = PyLong_AsUnsignedLong(value);
memcpy(*retDataBuf, &d, sizeof(DWORD));
}
break;