Function param

common/json_param.c:339–377

}

bool param(struct command *cmd, const char *buffer,
	   const jsmntok_t tokens[], ...)
{
	struct param *params = tal_arr(tmpctx, struct param, 0);
	const char *name;
	va_list ap;
	bool allow_extra = false;

	va_start(ap, tokens);
	while ((name = va_arg(ap, const char *)) != NULL) {
		enum param_style style = va_arg(ap, enum param_style);
		param_cbx cbx = va_arg(ap, param_cbx);
		void *arg = va_arg(ap, void *);
		if (streq(name, "")) {
			allow_extra = true;
			continue;
		}
		if (!param_add(&params, name, style, cbx, arg)) {
			/* We really do ignore this return! */
			struct command_result *ignore;
			ignore = command_fail(cmd, PARAM_DEV_ERROR,
					      "developer error: param_add %s", name);
			assert(ignore);
			va_end(ap);
			return false;
		}
	}
	va_end(ap);

	if (command_usage_only(cmd)) {
		command_set_usage(cmd, param_usage(cmd, params));
		return false;
	}

	/* Always return false if we're simply checking command parameters;
	 * normally this returns true if all parameters are valid. */
	return param_arr(cmd, buffer, tokens, params, allow_extra) == NULL
		&& !command_check_only(cmd);
}

struct command_result *param_array(struct command *cmd, const char *name,
				   const char *buffer, const jsmntok_t *tok,