req.ifa.ifi_index = ifp->ifindex;
- addattr_l(&req.n, sizeof(req), IFLA_PROTO_DOWN, &down, 4);
+ addattr_l(&req.n, sizeof(req), IFLA_PROTO_DOWN, &down, sizeof(down));
addattr_l(&req.n, sizeof(req), IFLA_LINK, &ifp->ifindex, 4);
return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns,