[rtems commit] Avoid NULL pointer access
Sebastian Huber
sebh at rtems.org
Mon Feb 13 16:04:19 UTC 2012
Module: rtems
Branch: master
Commit: 002affcfbe471fafa7552f4801f39864c0f73038
Changeset: http://git.rtems.org/rtems/commit/?id=002affcfbe471fafa7552f4801f39864c0f73038
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Mon Feb 13 16:40:54 2012 +0100
Avoid NULL pointer access
---
cpukit/libmisc/shell/shell_getprompt.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/cpukit/libmisc/shell/shell_getprompt.c b/cpukit/libmisc/shell/shell_getprompt.c
index 08c628b..357bb1a 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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