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| author | Roel Kluin <roel.kluin@gmail.com> | 2009-12-10 23:52:07 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2009-12-10 23:52:07 +0000 |
| commit | a518b86d0b1b6a474f154697dc6f33e0a317ae72 (patch) | |
| tree | 759b2ddb2a6a7f3745ee88d817652de5568da509 /drivers/md/dm-ioctl.c | |
| parent | 5339fc2d47d1d720e027b9b832bf5aae8fba2ac0 (diff) | |
| download | linux-a518b86d0b1b6a474f154697dc6f33e0a317ae72.tar.gz linux-a518b86d0b1b6a474f154697dc6f33e0a317ae72.tar.bz2 linux-a518b86d0b1b6a474f154697dc6f33e0a317ae72.zip | |
dm ioctl: prefer strlcpy over strncpy
strlcpy() will always null terminate the string.
The code should already guarantee this as the last bytes are already
NULs and the string lengths were restricted before being stored in
hc. Removing the '-1' becomes necessary so strlcpy() doesn't
lose the last character of a maximum-length string.
- agk
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-ioctl.c')
| -rw-r--r-- | drivers/md/dm-ioctl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index d19854c98184..99de0e4ce831 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -645,9 +645,9 @@ static struct mapped_device *find_device(struct dm_ioctl *param) * Sneakily write in both the name and the uuid * while we have the cell. */ - strncpy(param->name, hc->name, sizeof(param->name)); + strlcpy(param->name, hc->name, sizeof(param->name)); if (hc->uuid) - strncpy(param->uuid, hc->uuid, sizeof(param->uuid)-1); + strlcpy(param->uuid, hc->uuid, sizeof(param->uuid)); else param->uuid[0] = '\0'; |