Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint

Need to check return result of PyInt_AsLong()

Will backport.

Lib/test/test_poll.py

@@ -168,5 +168,25 @@ def test_poll2():
     p.close()
     print 'Poll test 2 complete'
 
+def test_poll3():
+    # test int overflow
+    print 'Running poll test 3'
+    pollster = select.poll()
+    pollster.register(1)
+
+    try:
+        pollster.poll(1L << 64)
+    except OverflowError:
+        pass
+    else:
+        print 'Expected OverflowError with excessive timeout'
+
+    x = 2 + 3
+    if x != 5:
+        print 'Overflow must have occurred'
+    print 'Poll test 3 complete'
+    
+
 test_poll1()
 test_poll2()
+test_poll3()

Misc/NEWS

@@ -177,6 +177,8 @@ Core and builtins
 Extension Modules
 -----------------
 
+- Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint
+
 - Bug #1344508, Fix UNIX mmap leaking file descriptors
 
 - Patch #1338314, Bug #1336623: fix tarfile so it can extract

Modules/selectmodule.c

@@ -470,6 +470,8 @@ poll_poll(pollObject *self, PyObject *args)
 			return NULL;
 		timeout = PyInt_AsLong(tout);
 		Py_DECREF(tout);
+		if (timeout == -1 && PyErr_Occurred())
+			return NULL;
 	}
 
 	/* Ensure the ufd array is up to date */