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os-posix: avoid buffer overrun

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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>
This commit is contained in:
Jim Meyering 2012-10-04 13:09:51 +02:00 • committed by Anthony Liguori
parent 1044dc1118
commit 3eadc68ebd
1 changed files with 1 additions and 2 deletions
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3
os-posix.c
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@ -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)) {