TRP_CONNECTION *trp_connection_remove(TRP_CONNECTION *conn, TRP_CONNECTION *remove);
void trp_connection_append(TRP_CONNECTION *conn, TRP_CONNECTION *new);
int trp_connection_auth(TRP_CONNECTION *conn, TRP_AUTH_FUNC auth_callback, void *callback_data);
TRP_CONNECTION *trp_connection_remove(TRP_CONNECTION *conn, TRP_CONNECTION *remove);
void trp_connection_append(TRP_CONNECTION *conn, TRP_CONNECTION *new);
int trp_connection_auth(TRP_CONNECTION *conn, TRP_AUTH_FUNC auth_callback, void *callback_data);