virtio: fix coverity warnings

[vpp.git] / src / vnet / devices / virtio / tap.c

diff --git a/src/vnet/devices/virtio/tap.c b/src/vnet/devices/virtio/tap.c
index f6db2c9..34339c9 100644 (file)
--- a/src/vnet/devices/virtio/tap.c
+++ b/src/vnet/devices/virtio/tap.c
@@ -109,7 +109,7 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
     }
 
   ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_ONE_QUEUE | IFF_VNET_HDR;
-  strncpy (ifr.ifr_ifrn.ifrn_name, (char *) args->name, IF_NAMESIZE);
+  strncpy (ifr.ifr_ifrn.ifrn_name, (char *) args->name, IF_NAMESIZE - 1);
   _IOCTL (vif->tap_fd, TUNSETIFF, (void *) &ifr);
 
   vif->ifindex = if_nametoindex ((char *) args->name);