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[PATCHv3,08/20] os-posix: avoid buffer overrun

Message ID 1349349003-15672-9-git-send-email-jim@meyering.net
State New
Headers show

Commit Message

Jim Meyering Oct. 4, 2012, 11:09 a.m. UTC 
From: Jim Meyering <meyering@redhat.com>

os_set_proc_name: Use pstrcpy, in place of strncpy and the
ineffectual preceding assignment: name[sizeof(name) - 1] = 0;

Signed-off-by: Jim Meyering <meyering@redhat.com>
---
 os-posix.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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Patch

diff --git a/os-posix.c b/os-posix.c
index eabccb8..f855abb 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -148,8 +148,7 @@  void os_set_proc_name(const char *s)
     char name[16];
     if (!s)
         return;
-    name[sizeof(name) - 1] = 0;
-    strncpy(name, s, sizeof(name));
+    pstrcpy(name, sizeof(name), s);
     /* Could rewrite argv[0] too, but that's a bit more complicated.
        This simple way is enough for `top'. */
     if (prctl(PR_SET_NAME, name)) {