From a4baf1c543bca261c27e98ba296e42665f3cb872 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Fri, 8 Sep 2017 21:53:04 -0700
Subject: [3.6] bpo-26669: Fix nan arg value error in pytime.c (GH-3085)
 (GH-3467)

* Modify NaN check function and error message
* Fix pytime.c when arg is nan
* fix whitespace
(cherry picked from commit 829dacce4fca60fc3c3367980e75e21dfcdbe6be)
---
 Python/pytime.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'Python/pytime.c')

diff --git a/Python/pytime.c b/Python/pytime.c
index 387657af2c..b416eff6b2 100644
--- a/Python/pytime.c
+++ b/Python/pytime.c
@@ -133,6 +133,11 @@ _PyTime_ObjectToDenominator(PyObject *obj, time_t *sec, long *numerator,
 
     if (PyFloat_Check(obj)) {
         double d = PyFloat_AsDouble(obj);
+        if (Py_IS_NAN(d)) {
+            *numerator = 0;
+            PyErr_SetString(PyExc_ValueError, "Invalid value NaN (not a number)");
+            return -1;
+        }
         return _PyTime_DoubleToDenominator(d, sec, numerator,
                                            denominator, round);
     }
@@ -154,6 +159,11 @@ _PyTime_ObjectToTime_t(PyObject *obj, time_t *sec, _PyTime_round_t round)
         volatile double d;
 
         d = PyFloat_AsDouble(obj);
+        if (Py_IS_NAN(d)) {
+            PyErr_SetString(PyExc_ValueError, "Invalid value NaN (not a number)");
+            return -1;
+        }
+
         d = _PyTime_Round(d, round);
         (void)modf(d, &intpart);
 
@@ -301,6 +311,10 @@ _PyTime_FromObject(_PyTime_t *t, PyObject *obj, _PyTime_round_t round,
     if (PyFloat_Check(obj)) {
         double d;
         d = PyFloat_AsDouble(obj);
+        if (Py_IS_NAN(d)) {
+            PyErr_SetString(PyExc_ValueError, "Invalid value NaN (not a number)");
+            return -1;
+        }
         return _PyTime_FromFloatObject(t, d, round, unit_to_ns);
     }
     else {
-- 
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