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/****************************************************************************
* fs/fat/fs_fat32attrib.c
*
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <errno.h>
#include <nuttx/fs.h>
#include <nuttx/fat.h>
#include "fs_internal.h"
#include "fs_fat32.h"
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: fat_attrib
****************************************************************************/
static int fat_attrib(const char *path, fat_attrib_t *retattrib,
fat_attrib_t setbits, fat_attrib_t clearbits)
{
struct fat_mountpt_s *fs;
struct fat_dirinfo_s dirinfo;
FAR struct inode *inode;
const char *relpath = NULL;
ubyte oldattributes;
ubyte newattributes;
int ret;
/* Get an inode for this file */
inode = inode_find(path, &relpath);
if (!inode)
{
/* There is no mountpoint that includes in this path */
ret = ENOENT;
goto errout;
}
/* Verify that the inode is a valid mountpoint. */
if (!INODE_IS_MOUNTPT(inode) || !inode->u.i_mops || !inode->i_private)
{
ret = ENXIO;
goto errout_with_inode;
}
/* Get the mountpoint private data from the inode structure */
fs = inode->i_private;
/* Check if the mount is still healthy */
fat_semtake(fs);
ret = fat_checkmount(fs);
if (ret != OK)
{
goto errout_with_semaphore;
}
/* Find the file/directory entry for the oldrelpath */
ret = fat_finddirentry(fs, &dirinfo, relpath);
if (ret != OK)
{
/* Some error occurred -- probably -ENOENT */
goto errout_with_semaphore;
}
/* Make sure that we found some valid file or directory */
if (!dirinfo.fd_entry)
{
/* Ooops.. we found the root directory */
ret = EACCES;
goto errout_with_semaphore;
}
/* Get the current attributes */
oldattributes = DIR_GETATTRIBUTES(dirinfo.fd_entry);
newattributes = oldattributes;
/* Set or clear any bits as requested */
newattributes &= ~(clearbits & (FATATTR_READONLY|FATATTR_HIDDEN|FATATTR_SYSTEM|FATATTR_ARCHIVE));
newattributes |= (setbits & (FATATTR_READONLY|FATATTR_HIDDEN|FATATTR_SYSTEM|FATATTR_ARCHIVE));
/* Did any thingchange? */
if (newattributes != oldattributes)
{
DIR_PUTATTRIBUTES(dirinfo.fd_entry, newattributes);
fs->fs_dirty = TRUE;
ret = fat_updatefsinfo(fs);
if (ret != OK)
{
ret = -ret;
goto errout_with_semaphore;
}
}
/* Success */
if (retattrib)
{
*retattrib = newattributes;
}
fat_semgive(fs);
inode_release(inode);
return OK;
errout_with_semaphore:
fat_semgive(fs);
errout_with_inode:
inode_release(inode);
errout:
*get_errno_ptr() = ret;
return ERROR;
}
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Name: fat_getattrib
****************************************************************************/
int fat_getattrib(const char *path, fat_attrib_t *attrib)
{
return fat_attrib(path, attrib, 0, 0);
}
/****************************************************************************
* Name: fat_setattrib
****************************************************************************/
int fat_setattrib(const char *path, fat_attrib_t setbits, fat_attrib_t clearbits)
{
return fat_attrib(path, NULL, setbits, clearbits);
}
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