From patchwork Fri Nov 11 16:33:39 2011
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Date: Fri, 11 Nov 2011 18:33:39 +0200
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 <CAO9iq9EdRjcPa4F=dGz8ubNZvJh786ODVJaXvmaz_uwEt3pw4g@mail.gmail.com>
Subject: [Patch, libfortran] PR 51090 Check getenv result before proceeding
From: Janne Blomqvist <blomqvist.janne@gmail.com>
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Hi,

committed the patch below as obvious.

2011-11-11  Janne Blomqvist  <jb@gcc.gnu.org>

	PR libfortran/51090
	* runtime/main.c (find_addr2line): NULL check before proceeding.

Index: main.c
===================================================================
--- main.c      (revision 181287)
+++ main.c      (working copy)
@@ -149,6 +149,8 @@ find_addr2line (void)
 #ifdef HAVE_ACCESS
 #define A2L_LEN 10
   char *path = getenv ("PATH");
+  if (!path)
+      return;
   size_t n = strlen (path);
   char ap[n + 1 + A2L_LEN];
   size_t ai = 0;