From: Guido van Rossum <guido@python.org>
Date: Tue, 8 Oct 1996 14:19:52 +0000 (+0000)
Subject: Check for NULL pointer returned from localtime()/gmtime().
X-Git-Tag: v1.4~132
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6e8583dcb3c2da749349cc14621748c3920f07b2;p=thirdparty%2FPython%2Fcpython.git

Check for NULL pointer returned from localtime()/gmtime().
---

diff --git a/Modules/timemodule.c b/Modules/timemodule.c
index aee599ae71a5..6e6abfb2191d 100644
--- a/Modules/timemodule.c
+++ b/Modules/timemodule.c
@@ -135,7 +135,16 @@ time_convert(when, function)
 	time_t when;
 	struct tm * (*function) PROTO((const time_t *));
 {
-	struct tm *p = function(&when);
+	struct tm *p;
+	errno = 0;
+	p = function(&when);
+	if (p == NULL) {
+#ifdef EINVAL
+		if (errno == NULL)
+			errno = EINVAL;
+#endif
+		return err_errno(IOError);
+	}
 	return mkvalue("(iiiiiiiii)",
 		       p->tm_year + 1900,
 		       p->tm_mon + 1, /* Want January == 1 */