-/* Monitoring for changes in network device status. */
-struct netdev_monitor *netdev_monitor_create(void);
-void netdev_monitor_destroy(struct netdev_monitor *);
-int netdev_monitor_add(struct netdev_monitor *, struct netdev *);
-void netdev_monitor_remove(struct netdev_monitor *, struct netdev *);
-int netdev_monitor_poll(struct netdev_monitor *, char **devnamep);
-void netdev_monitor_poll_wait(const struct netdev_monitor *);
-