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Issue #15989: Fix several occurrences of integer overflow

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when result of PyLong_AsLong() narrowed to int without checks.

This is a backport of changesets 13e2e44db99d and 525407d89277.
This commit is contained in:
Serhiy Storchaka 2013-01-19 12:41:45 +02:00
commit 9101e23ff6
19 changed files with 151 additions and 25 deletions
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4
Lib/test/test_fileio.py
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@ -8,6 +8,7 @@ import unittest
from array import array
from weakref import proxy
from functools import wraps
import _testcapi
from test.support import TESTFN, check_warnings, run_unittest, make_bad_fd
from collections import UserList
@ -347,6 +348,9 @@ class OtherFileTests(unittest.TestCase):
if sys.platform == 'win32':
import msvcrt
self.assertRaises(IOError, msvcrt.get_osfhandle, make_bad_fd())
# Issue 15989
self.assertRaises(TypeError, _FileIO, _testcapi.INT_MAX + 1)
self.assertRaises(TypeError, _FileIO, _testcapi.INT_MIN - 1)
def testBadModeArgument(self):
# verify that we get a sensible error message for bad mode argument