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Issue #15989: Fix several occurrences of integer overflow

Browse source 
when result of PyInt_AsLong() or 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 12:55:39 +02:00
parent ac7b49f407
commit 74f49ab28b
17 changed files with 143 additions and 22 deletions
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10
Lib/test/test_poll.py
View file

@ -1,6 +1,7 @@
# Test case for the os.poll() function
import os, select, random, unittest
import _testcapi
from test.test_support import TESTFN, run_unittest
try:
@ -150,6 +151,15 @@ class PollTests(unittest.TestCase):
if x != 5:
self.fail('Overflow must have occurred')
pollster = select.poll()
# Issue 15989
self.assertRaises(OverflowError, pollster.register, 0,
_testcapi.SHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.register, 0,
_testcapi.USHRT_MAX + 1)
self.assertRaises(OverflowError, pollster.poll, _testcapi.INT_MAX + 1)
self.assertRaises(OverflowError, pollster.poll, _testcapi.UINT_MAX + 1)
def test_main():
run_unittest(PollTests)