const char* ubus_get_ifname(const char *name);
void ubus_apply_network(void);
bool ubus_has_prefix(const char *name, const char *ifname);
-uint16_t ubus_get_class(const char *ifname, const struct in6_addr *addr);
+bool ubus_get_class(const char *ifname, const struct in6_addr *addr, uint16_t *pclass);
#endif