Function check_cmd_call_params

cmds.c:43–63

Checks if the module function is called with the right number of parameters * and all mandatory parameters are given * Return: * 0 - correct call * -1 - too few parameters * -2 - too many parameters * -3 - mandatory parameter omitted */

 * -3 - mandatory parameter omitted
 */
int check_cmd_call_params(const cmd_export_t *cmd, action_elem_t *elems, int no_params)
{
	const struct cmd_param *param;
	int n=0, m=0, i;

	for (param=cmd->params; param->flags; param++, n++)
		if (!(param->flags & CMD_PARAM_OPT))
			m = n+1;

	if (no_params < m)  /* check the minimum number of arguments for the call,
						 * including optional params that must be explicitly omitted */
		return -1;
	else if (no_params > n)
		return -2;

	for (i=1, param=cmd->params; i<=no_params; i++, param++)
		if (!(param->flags & CMD_PARAM_OPT) && elems[i].type == NULLV_ST)
			return -3;

	return 0;
}

/* simillar function to check_cmd_call_params but for async cmds */
int check_acmd_call_params(const acmd_export_t *acmd, action_elem_t *elems, int no_params)