Function sys_rmdir

components/lwp/lwp_syscall.c:7647–7690

* @brief Removes the specified directory. * * This function removes the directory specified by the given path. The directory * must be empty for the operation to succeed. If the directory is not empty, the * function will return an error. If the directory does not exist or the process * lacks the necessary permissions, the function will also return an error. * * @param[in] path The path

 * @see sys_mkdir(), sys_chdir(), sys_rmdirat()
 */
sysret_t sys_rmdir(const char *path)
{
    int err = 0;
    int ret = 0;
#ifdef ARCH_MM_MMU
    int len = 0;
    char *kpath = RT_NULL;

    len = lwp_user_strlen(path);
    if (len <= 0)
    {
        return -EFAULT;
    }

    kpath = (char *)kmem_get(len + 1);
    if (!kpath)
    {
        return -ENOMEM;
    }

    if (lwp_get_from_user(kpath, (void *)path, len + 1) != (len + 1))
    {
        kmem_put(kpath);
        return -EINVAL;
    }

    ret = rmdir(kpath);
    if(ret < 0)
    {
        err = GET_ERRNO();
    }

    kmem_put(kpath);

    return (err < 0 ? err : ret);
#else
    ret = rmdir(path);
    if(ret < 0)
    {
        err = GET_ERRNO();
    }
    return (err < 0 ? err : ret);
#endif
}

/**
 * @brief Reads directory entries.