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changeset 15540:eff2fc71e9c1

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freopen: Don't crash if the filename argument is NULL. * lib/freopen.c (rpl_freopen): Don't compare the filename if it is NULL.
author Claudio Bley <claudio.bley@gmail.com>
date Wed, 31 Aug 2011 10:12:25 +0200
parents 4a8142321d8c
children 38e51177f2b2
files ChangeLog lib/freopen.c
diffstat 2 files changed, 7 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2011-08-31  Claudio Bley  <claudio.bley@gmail.com>  (tiny change)
+
+	freopen: Don't crash if the filename argument is NULL.
+	* lib/freopen.c (rpl_freopen): Don't compare the filename if it is
+	NULL.
+
 2011-08-30  Paul Eggert  <eggert@cs.ucla.edu>
 
 	openat: work around AIX 7.1 fstatat bug
--- a/lib/freopen.c
+++ b/lib/freopen.c
@@ -41,7 +41,7 @@
 rpl_freopen (const char *filename, const char *mode, FILE *stream)
 {
 #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-  if (strcmp (filename, "/dev/null") == 0)
+  if (filename != NULL && strcmp (filename, "/dev/null") == 0)
     filename = "NUL";
 #endif