os-posix: avoid buffer overrun
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>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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 @@
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)) {