Function lwp_args_put

components/lwp/lwp_args.c:501–544

* @brief Put arguments or environment variables into LWP arguments info structure * * @param[in,out] args Pointer to the lwp_args_info structure to store the arguments * @param[in] strv_addr Pointer to the string array (argv/envp) to be processed * @param[in] atype Type of arguments being processed (LWP_ARGS_TYPE_ARG/LWP_ARGS_TYPE_ENVP) * * @return rt_err_t * - RT_EOK on success * - -E

 *   - Other errors from args_append() if memory allocation fails
 */
rt_err_t lwp_args_put(struct lwp_args_info *args, const char **strv_addr, enum lwp_args_type atype)
{
    rt_err_t error;
    int iter = 0;
    int len;
    const char *arg_ptr;

    while (1)
    {
        if (atype == LWP_ARGS_TYPE_ARG || atype == LWP_ARGS_TYPE_ENVP)
        {
            len = lwp_get_from_user(&arg_ptr, strv_addr + iter++, sizeof(char *));
            if (len != sizeof(char *))
            {
                return -EFAULT;
            }
            if (arg_ptr == NULL)
            {
                break;
            }
            len = lwp_user_strlen(arg_ptr);
            if (len < 0)
            {
                return -EFAULT;
            }
        }
        else
        {
            arg_ptr = strv_addr[iter++];
            if (arg_ptr == NULL)
            {
                break;
            }
            len = strlen(arg_ptr);
        }

        error = args_append(args, arg_ptr, len, atype);
        if (error)
        {
            return error;
        }
    }
    return 0;
}

/**
 * @brief Put command line arguments into LWP arguments info structure