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/*
libparted
Copyright (C) 1998-2000, 2007, 2009-2014, 2019-2022 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "fat.h"
#include "fatio.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <ctype.h>
#ifndef DISCOVER_ONLY
int
fat_read_fragments (PedFileSystem* fs, char* buf, FatFragment frag,
FatFragment count)
{
FatSpecific* fs_info = FAT_SPECIFIC (fs);
PedSector sector = fat_frag_to_sector (fs, frag);
PedSector sector_count = count * fs_info->frag_sectors;
PED_ASSERT (frag >= 0 && frag < fs_info->frag_count);
return ped_geometry_read (fs->geom, buf, sector, sector_count);
}
int
fat_read_fragment (PedFileSystem* fs, char* buf, FatFragment frag)
{
return fat_read_fragments (fs, buf, frag, 1);
}
int
fat_write_fragments (PedFileSystem* fs, char* buf, FatFragment frag,
FatFragment count)
{
FatSpecific* fs_info = FAT_SPECIFIC (fs);
PedSector sector = fat_frag_to_sector (fs, frag);
PedSector sector_count = count * fs_info->frag_sectors;
PED_ASSERT (frag >= 0 && frag < fs_info->frag_count);
return ped_geometry_write (fs->geom, buf, sector, sector_count);
}
int
fat_write_fragment (PedFileSystem* fs, char* buf, FatFragment frag)
{
return fat_write_fragments (fs, buf, frag, 1);
}
int
fat_write_sync_fragments (PedFileSystem* fs, char* buf, FatFragment frag,
FatFragment count)
{
if (!fat_write_fragments (fs, buf, frag, count))
return 0;
if (!ped_geometry_sync (fs->geom))
return 0;
return 1;
}
int
fat_write_sync_fragment (PedFileSystem* fs, char* buf, FatFragment frag)
{
return fat_write_sync_fragments (fs, buf, frag, 1);
}
int
fat_read_clusters (PedFileSystem* fs, char *buf, FatCluster cluster,
FatCluster count)
{
FatSpecific* fs_info = FAT_SPECIFIC (fs);
PedSector sector = fat_cluster_to_sector (fs, cluster);
PedSector sector_count = count * fs_info->cluster_sectors;
PED_ASSERT (cluster >= 2
&& cluster + count - 1 < fs_info->cluster_count + 2);
return ped_geometry_read (fs->geom, buf, sector, sector_count);
}
int
fat_read_cluster (PedFileSystem* fs, char *buf, FatCluster cluster)
{
return fat_read_clusters (fs, buf, cluster, 1);
}
int
fat_write_clusters (PedFileSystem* fs, char *buf, FatCluster cluster,
FatCluster count)
{
FatSpecific* fs_info = FAT_SPECIFIC (fs);
PedSector sector = fat_cluster_to_sector (fs, cluster);
PedSector sector_count = count * fs_info->cluster_sectors;
PED_ASSERT (cluster >= 2
&& cluster + count - 1 < fs_info->cluster_count + 2);
return ped_geometry_write (fs->geom, buf, sector, sector_count);
}
int
fat_write_cluster (PedFileSystem* fs, char *buf, FatCluster cluster)
{
return fat_write_clusters (fs, buf, cluster, 1);
}
int
fat_write_sync_clusters (PedFileSystem* fs, char *buf, FatCluster cluster,
FatCluster count)
{
if (!fat_write_clusters (fs, buf, cluster, count))
return 0;
if (!ped_geometry_sync (fs->geom))
return 0;
return 1;
}
int
fat_write_sync_cluster (PedFileSystem* fs, char *buf, FatCluster cluster)
{
if (!fat_write_cluster (fs, buf, cluster))
return 0;
if (!ped_geometry_sync (fs->geom))
return 0;
return 1;
}
#endif /* !DISCOVER_ONLY */
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