[dpdk-dev] [PATCH v2] example/vhost_blk: fix buffer not null terminated

[Jin Yu <jin.yu@intel.com>]

In vhost_blk_bdev_construct: The string buffer may not have
a null terminator if the source string's length is equal to
the buffer size.

Fixes: 91d3e2d42997 ("examples/vhost_blk: refactor to increase readability")
Cc: jin.yu@intel.com

Signed-off-by: Jin Yu <jin.yu@intel.com>
---
V2 - update the commit message
---
 examples/vhost_blk/vhost_blk.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index 95a050855..f4c59437a 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -750,8 +750,9 @@ vhost_blk_bdev_construct(const char *bdev_name,
 	if (!bdev)
 		return NULL;
 
-	strncpy(bdev->name, bdev_name, sizeof(bdev->name));
-	strncpy(bdev->product_name, bdev_serial, sizeof(bdev->product_name));
+	snprintf(bdev->name, sizeof(bdev->name), "%s", bdev_name);
+	snprintf(bdev->product_name, sizeof(bdev->product_name), "%s",
+		 bdev_serial);
 	bdev->blocklen = blk_size;
 	bdev->blockcnt = blk_cnt;
 	bdev->write_cache = wce_enable;
-- 
2.17.2