int send_option_arg_callback_request(struct osl_object *options,
int argc, char * const * const argv, callback_function *f,
struct osl_object *result);
-int stdin_command(struct osl_object *arg_obj, callback_function *f,
+int stdin_command(int fd, struct osl_object *arg_obj, callback_function *f,
unsigned max_len, struct osl_object *result);
int string_compare(const struct osl_object *obj1, const struct osl_object *obj2);
int para_atol(const char *str, long *result);