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[3.13] gh-118998: Handle errors correctly in tmtotuple in timemodule (GH-118999) #119018

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May 13, 2024
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[3.13] gh-118998: Handle errors correctly in tmtotuple in timemodule (GH-118999) #119018

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27 changes: 17 additions & 10 deletions Modules/timemodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -462,7 +462,18 @@ tmtotuple(time_module_state *state, struct tm *p
if (v == NULL)
return NULL;

#define SET(i,val) PyStructSequence_SET_ITEM(v, i, PyLong_FromLong((long) val))
#define SET_ITEM(INDEX, CALL) \
do { \
PyObject *obj = (CALL); \
if (obj == NULL) { \
Py_DECREF(v); \
return NULL; \
} \
PyStructSequence_SET_ITEM(v, (INDEX), obj); \
} while (0)

#define SET(INDEX, VAL) \
SET_ITEM((INDEX), PyLong_FromLong((long) (VAL)))

SET(0, p->tm_year + 1900);
SET(1, p->tm_mon + 1); /* Want January == 1 */
Expand All @@ -474,19 +485,15 @@ tmtotuple(time_module_state *state, struct tm *p
SET(7, p->tm_yday + 1); /* Want January, 1 == 1 */
SET(8, p->tm_isdst);
#ifdef HAVE_STRUCT_TM_TM_ZONE
PyStructSequence_SET_ITEM(v, 9,
PyUnicode_DecodeLocale(p->tm_zone, "surrogateescape"));
SET_ITEM(9, PyUnicode_DecodeLocale(p->tm_zone, "surrogateescape"));
SET(10, p->tm_gmtoff);
#else
PyStructSequence_SET_ITEM(v, 9,
PyUnicode_DecodeLocale(zone, "surrogateescape"));
PyStructSequence_SET_ITEM(v, 10, _PyLong_FromTime_t(gmtoff));
SET_ITEM(9, PyUnicode_DecodeLocale(zone, "surrogateescape"));
SET_ITEM(10, _PyLong_FromTime_t(gmtoff));
#endif /* HAVE_STRUCT_TM_TM_ZONE */

#undef SET
if (PyErr_Occurred()) {
Py_XDECREF(v);
return NULL;
}
#undef SET_ITEM

return v;
}
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