confile-vlanid: undefined is not a zero value

Signed-off-by: Asain Kujovic <asainnp@gmail.com>

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 071ada7924c39f6af154471a794ef6d838019bc1..4380fcd79a0ff5b8a434f00ec2f27af383873a3e 100644 (file)
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -6209,7 +6209,8 @@ static int get_config_net_veth_vlan_id(const char *key, char *retv, int inlen,
        else
                memset(retv, 0, inlen);
 
-       strprint(retv, inlen, "%d", netdev->priv.veth_attr.vlan_id);
+       if (netdev->priv.veth_attr.vlan_id_set)
+               strprint(retv, inlen, "%d", netdev->priv.veth_attr.vlan_id);
 
        return fulllen;
 }