extern int ustcomm_send_request(struct ustcomm_connection *conn, const char *req, char **reply);
extern int ustcomm_send_reply(struct ustcomm_server *server, char *msg, struct ustcomm_source *src);
extern int ustcomm_disconnect(struct ustcomm_connection *conn);
+extern int ustcomm_close_all_connections(struct ustcomm_server *server);
extern int nth_token_is(char *str, char *token, int tok_no);