[dm-devel] [PATCH] dm: strncpy does not null terminate string
Roel Kluin
roel.kluin at gmail.com
Fri Jul 17 15:35:59 UTC 2009
strlcpy() will always null terminate the string.
Signed-off-by: Roel Kluin <roel.kluin at gmail.com>
---
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 7f77f18..8208b3a 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -634,9 +634,9 @@ 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';
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