From 002affcfbe471fafa7552f4801f39864c0f73038 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 13 Feb 2012 16:40:54 +0100
Subject: Avoid NULL pointer access

---
 cpukit/libmisc/shell/shell_getprompt.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/cpukit/libmisc/shell/shell_getprompt.c b/cpukit/libmisc/shell/shell_getprompt.c
index 08c628b219..357bb1a3ad 100644
--- a/cpukit/libmisc/shell/shell_getprompt.c
+++ b/cpukit/libmisc/shell/shell_getprompt.c
@@ -37,13 +37,15 @@ void rtems_shell_get_prompt(
   size_t             size
 )
 {
-  char curdir[256];
+  char buf[256];
+  char *cwd;
 
   /* XXX: show_prompt user adjustable */
-  getcwd(curdir,sizeof(curdir));
+  cwd = getcwd(buf,sizeof(buf));
+  cwd = cwd != NULL ? cwd : "?";
   snprintf(prompt, size - 1, "%s%s[%s] %c ",
           ((shell_env->taskname) ? shell_env->taskname : ""),
           ((shell_env->taskname) ? " " : ""),
-          curdir,
+          cwd,
           geteuid()?'$':'#');
 }
-- 
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