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/*
* MSDOS directory handlers implementation
*
* Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
* Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* @(#) $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "msdos.h"
int
msdos_rmnod(const rtems_filesystem_location_info_t *parent_pathloc,
const rtems_filesystem_location_info_t *pathloc)
{
int rc = RC_OK;
fat_file_fd_t *fat_fd = pathloc->node_access;
if (fat_fd->fat_file_type == MSDOS_DIRECTORY)
{
bool is_empty = false;
/*
* You cannot remove a node that still has children
*/
rc = msdos_dir_is_empty(pathloc->mt_entry, fat_fd, &is_empty);
if (rc != RC_OK)
{
return rc;
}
if (!is_empty)
{
rtems_set_errno_and_return_minus_one(ENOTEMPTY);
}
/*
* We deny attempts to delete open directory (if directory is current
* directory we assume it is open one)
*/
if (fat_fd->links_num > 1)
{
rtems_set_errno_and_return_minus_one(EBUSY);
}
/*
* You cannot remove the file system root node.
*/
if (rtems_filesystem_location_is_root(pathloc))
{
rtems_set_errno_and_return_minus_one(EBUSY);
}
/*
* You cannot remove a mountpoint.
* not used - mount() not implemenetd yet.
*/
}
/* mark file removed */
rc = msdos_set_first_char4file_name(pathloc->mt_entry, &fat_fd->dir_pos,
MSDOS_THIS_DIR_ENTRY_EMPTY);
if (rc != RC_OK)
{
return rc;
}
fat_file_mark_removed(pathloc->mt_entry, fat_fd);
return rc;
}
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