[virt-tools-list] [vhostmd PATCH 18/18] virtio: Fix strncpy length parameter

[Jim Fehlig]

Leave an extra byte for null-terminator in call to strncpy. From
coverity scan

vhostmd-1.1/vhostmd/virtio.c:194: buffer_size_warning: Calling "strncpy" with a maximum size argument of 108 bytes on destination array "address.sun_path" of size 108 bytes might leave the destination string unterminated.
  192|       address.sun_family = AF_LOCAL;
  193|
  194|->     strncpy(address.sun_path, c->uds_name, SUN_PATH_LEN);
  195|
  196|       if ((c->fd = socket(AF_LOCAL, SOCK_STREAM, 0)) == -1)

Signed-off-by: Jim Fehlig <jfehlig at suse.com>
---
 vhostmd/virtio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vhostmd/virtio.c b/vhostmd/virtio.c
index f227b45..a6c2515 100644
--- a/vhostmd/virtio.c
+++ b/vhostmd/virtio.c
@@ -191,7 +191,7 @@ static int vio_channel_open(channel_t * c)
     bzero(&address, sizeof(address));
     address.sun_family = AF_LOCAL;
 
-    strncpy(address.sun_path, c->uds_name, SUN_PATH_LEN);
+    strncpy(address.sun_path, c->uds_name, SUN_PATH_LEN - 1);
 
     if ((c->fd = socket(AF_LOCAL, SOCK_STREAM, 0)) == -1)
         goto error;
-- 
2.16.4