|
 |
b33395 |
From c8d1c398505b62d9129a4e711f17e4469f4327ff Mon Sep 17 00:00:00 2001
|
|
|
b33395 |
From: Kinga Tanska <kinga.tanska@intel.com>
|
|
|
b33395 |
Date: Thu, 14 Jul 2022 09:02:10 +0200
|
|
|
b33395 |
Subject: [PATCH 29/52] Monitor: use devname as char array instead of pointer
|
|
|
b33395 |
|
|
|
b33395 |
Device name wasn't filled properly due to incorrect use of strcpy.
|
|
|
b33395 |
Strcpy was used twice. Firstly to fill devname with "/dev/md/"
|
|
|
b33395 |
and then to add chosen name. First strcpy result was overwritten by
|
|
|
b33395 |
second one (as a result <device_name> instead of "/dev/md/<device_name>"
|
|
|
b33395 |
was assigned). This commit changes this implementation to use snprintf
|
|
|
b33395 |
and devname with fixed size.
|
|
|
b33395 |
|
|
|
b33395 |
Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
|
|
|
b33395 |
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
|
|
|
b33395 |
---
|
|
|
b33395 |
Monitor.c | 8 +++++---
|
|
|
b33395 |
1 file changed, 5 insertions(+), 3 deletions(-)
|
|
|
b33395 |
|
|
|
b33395 |
diff --git a/Monitor.c b/Monitor.c
|
|
|
b33395 |
index 6ca1ebe5..a5b11ae2 100644
|
|
|
b33395 |
--- a/Monitor.c
|
|
|
b33395 |
+++ b/Monitor.c
|
|
|
b33395 |
@@ -190,9 +190,11 @@ int Monitor(struct mddev_dev *devlist,
|
|
|
b33395 |
if (mdlist->devname[0] == '/')
|
|
|
b33395 |
st->devname = xstrdup(mdlist->devname);
|
|
|
b33395 |
else {
|
|
|
b33395 |
- st->devname = xmalloc(8+strlen(mdlist->devname)+1);
|
|
|
b33395 |
- strcpy(strcpy(st->devname, "/dev/md/"),
|
|
|
b33395 |
- mdlist->devname);
|
|
|
b33395 |
+ /* length of "/dev/md/" + device name + terminating byte */
|
|
|
b33395 |
+ size_t _len = sizeof("/dev/md/") + strnlen(mdlist->devname, PATH_MAX);
|
|
|
b33395 |
+
|
|
|
b33395 |
+ st->devname = xcalloc(_len, sizeof(char));
|
|
|
b33395 |
+ snprintf(st->devname, _len, "/dev/md/%s", mdlist->devname);
|
|
|
b33395 |
}
|
|
|
b33395 |
if (!is_mddev(mdlist->devname))
|
|
|
b33395 |
return 1;
|
|
|
b33395 |
--
|
|
|
b33395 |
2.31.1
|
|
|
b33395 |
|