-extern int send_meta(conn_list_t *, const char *, int);
-extern int broadcast_meta(conn_list_t *, const char *, int);
-extern int receive_meta(conn_list_t *);
+extern bool send_meta(struct connection_t *, const char *, int);
+extern bool send_meta_sptps(void *, uint8_t, const void *, size_t);
+extern bool receive_meta_sptps(void *, uint8_t, const void *, uint16_t);
+extern void broadcast_meta(struct connection_t *, const char *, int);
+extern bool receive_meta(struct connection_t *);