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[*** Not tested as I don't have Windows running right now! ***]

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Trent Mick <trentm@activestate.com>:

Fix PC/msvcrtmodule.c and PC/winreg.c for Win64. Basically:

- sizeof(HKEY) > sizeof(long) on Win64, so use PyLong_FromVoidPtr()
instead of PyInt_FromLong() to return HKEY values on Win64

- Check for string overflow of an arbitrary registry value (I know
that ensuring that a registry value does not overflow 2**31 characters
seems ridiculous but it is *possible*).

Closes SourceForge patch #100517.
This commit is contained in:
Fred Drake 2000-06-30 17:48:51 +00:00
parent 7efcafb994
commit 25e1726d31
2 changed files with 24 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

21
PC/_winreg.c
View file

@ -592,7 +592,6 @@ PyHKEY_AsHKEY(PyObject *ob, HKEY *pHANDLE, BOOL bNoneOK)
*pHANDLE = (HKEY)PyLong_AsVoidPtr(ob);
if (PyErr_Occurred())
return FALSE;
*pHANDLE = (HKEY)PyInt_AsLong(ob);
}
else {
PyErr_SetString(
@ -628,12 +627,21 @@ PyWinObject_CloseHKEY(PyObject *obHandle)
if (PyHKEY_Check(obHandle)) {
ok = PyHKEY_Close(obHandle);
}
#if SIZEOF_LONG >= SIZEOF_HKEY
else if (PyInt_Check(obHandle)) {
long rc = RegCloseKey((HKEY)PyInt_AsLong(obHandle));
ok = (rc == ERROR_SUCCESS);
if (!ok)
PyErr_SetFromWindowsErrWithFunction(rc, "RegCloseKey");
}
#else
else if (PyLong_Check(obHandle)) {
long rc = RegCloseKey((HKEY)PyLong_AsVoidPtr(obHandle));
ok = (rc == ERROR_SUCCESS);
if (!ok)
PyErr_SetFromWindowsErrWithFunction(rc, "RegCloseKey");
}
#endif
else {
PyErr_SetString(
PyExc_TypeError,
@ -880,13 +888,22 @@ Reg2Py(char *retDataBuf, DWORD retDataSize, DWORD typ)
fixupMultiSZ(str, retDataBuf, retDataSize);
obData = PyList_New(s);
if (obData == NULL)
return NULL;
for (index = 0; index < s; index++)
{
size_t len = _mbstrlen(str[index]);
if (len > INT_MAX) {
PyErr_SetString(PyExc_OverflowError,
"registry string is too long for a Python string");
Py_DECREF(obData);
return NULL;
}
PyList_SetItem(obData,
index,
PyUnicode_DecodeMBCS(
(const char *)str[index],
_mbstrlen(str[index]),
(int)len,
NULL)
);
}