From 3e7a3cb903258321a17265a1c01976f88e7b72fc Mon Sep 17 00:00:00 2001
From: Alexander Belopolsky <alexander.belopolsky@gmail.com>
Date: Wed, 28 Sep 2016 17:31:35 -0400
Subject: Issue #28148: Stop using localtime() and gmtime() in the time module.

Introduced platform independent _PyTime_localtime API that is similar
to POSIX localtime_r, but available on all platforms.  Patch by Ed
Schouten.
---
 Python/pytime.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

(limited to 'Python/pytime.c')

diff --git a/Python/pytime.c b/Python/pytime.c
index 02ef8ee7d6..3015a6be0b 100644
--- a/Python/pytime.c
+++ b/Python/pytime.c
@@ -766,3 +766,55 @@ _PyTime_Init(void)
 
     return 0;
 }
+
+int
+_PyTime_localtime(time_t t, struct tm *tm)
+{
+#ifdef MS_WINDOWS
+    int error;
+
+    error = localtime_s(tm, &t);
+    if (error != 0) {
+        errno = error;
+        PyErr_SetFromErrno(PyExc_OSError);
+        return -1;
+    }
+    return 0;
+#else /* !MS_WINDOWS */
+    if (localtime_r(&t, tm) == NULL) {
+#ifdef EINVAL
+        if (errno == 0)
+            errno = EINVAL;
+#endif
+        PyErr_SetFromErrno(PyExc_OSError);
+        return -1;
+    }
+    return 0;
+#endif /* MS_WINDOWS */
+}
+
+int
+_PyTime_gmtime(time_t t, struct tm *tm)
+{
+#ifdef MS_WINDOWS
+    int error;
+
+    error = gmtime_s(tm, &t);
+    if (error != 0) {
+        errno = error;
+        PyErr_SetFromErrno(PyExc_OSError);
+        return -1;
+    }
+    return 0;
+#else /* !MS_WINDOWS */
+    if (gmtime_r(&t, tm) == NULL) {
+#ifdef EINVAL
+        if (errno == 0)
+            errno = EINVAL;
+#endif
+        PyErr_SetFromErrno(PyExc_OSError);
+        return -1;
+    }
+    return 0;
+#endif /* MS_WINDOWS */
+}
-- 
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