gchar *avahi_format_mac_address(const guint8* mac, guint size);
+gboolean avahi_valid_service_type(const gchar *t);
+gboolean avahi_valid_domain_name(const gchar *t);
+gboolean avahi_valid_service_name(const gchar *t);
+gboolean avahi_valid_host_name(const gchar *t);
+
AVAHI_C_DECL_END
#endif