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+/* dosfsck.h - Common data structures and global variables
+
+ Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+ Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+ Copyright (C) 2008-2013 Daniel Baumann <mail@daniel-baumann.ch>
+
+ 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/>.
+
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+#ifndef _DOSFSCK_H
+#define _DOSFSCK_H
+
+#include <sys/types.h>
+#define _LINUX_STAT_H /* hack to avoid inclusion of <linux/stat.h> */
+#define _LINUX_STRING_H_ /* hack to avoid inclusion of <linux/string.h> */
+#define _LINUX_FS_H /* hack to avoid inclusion of <linux/fs.h> */
+
+#include <asm/types.h>
+#include <asm/byteorder.h>
+
+#include <linux/msdos_fs.h>
+
+#undef CF_LE_W
+#undef CF_LE_L
+#undef CT_LE_W
+#undef CT_LE_L
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#include <byteswap.h>
+#define CF_LE_W(v) bswap_16(v)
+#define CF_LE_L(v) bswap_32(v)
+#define CT_LE_W(v) CF_LE_W(v)
+#define CT_LE_L(v) CF_LE_L(v)
+#else
+#define CF_LE_W(v) (v)
+#define CF_LE_L(v) (v)
+#define CT_LE_W(v) (v)
+#define CT_LE_L(v) (v)
+#endif /* __BIG_ENDIAN */
+
+#define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
+
+#define FAT_STATE_DIRTY 0x01
+
+/* ++roman: Use own definition of boot sector structure -- the kernel headers'
+ * name for it is msdos_boot_sector in 2.0 and fat_boot_sector in 2.1 ... */
+struct boot_sector {
+ __u8 ignored[3]; /* Boot strap short or near jump */
+ __u8 system_id[8]; /* Name - can be used to special case
+ partition manager volumes */
+ __u8 sector_size[2]; /* bytes per logical sector */
+ __u8 cluster_size; /* sectors/cluster */
+ __u16 reserved; /* reserved sectors */
+ __u8 fats; /* number of FATs */
+ __u8 dir_entries[2]; /* root directory entries */
+ __u8 sectors[2]; /* number of sectors */
+ __u8 media; /* media code (unused) */
+ __u16 fat_length; /* sectors/FAT */
+ __u16 secs_track; /* sectors per track */
+ __u16 heads; /* number of heads */
+ __u32 hidden; /* hidden sectors (unused) */
+ __u32 total_sect; /* number of sectors (if sectors == 0) */
+
+ /* The following fields are only used by FAT32 */
+ __u32 fat32_length; /* sectors/FAT */
+ __u16 flags; /* bit 8: fat mirroring, low 4: active fat */
+ __u8 version[2]; /* major, minor filesystem version */
+ __u32 root_cluster; /* first cluster in root directory */
+ __u16 info_sector; /* filesystem info sector */
+ __u16 backup_boot; /* backup boot sector */
+ __u8 reserved2[12]; /* Unused */
+
+ __u8 drive_number; /* Logical Drive Number */
+ __u8 reserved3; /* Unused */
+
+ __u8 extended_sig; /* Extended Signature (0x29) */
+ __u32 serial; /* Serial number */
+ __u8 label[11]; /* FS label */
+ __u8 fs_type[8]; /* FS Type */
+
+ /* fill up to 512 bytes */
+ __u8 junk[422];
+} __attribute__ ((packed));
+
+struct boot_sector_16 {
+ __u8 ignored[3]; /* Boot strap short or near jump */
+ __u8 system_id[8]; /* Name - can be used to special case
+ partition manager volumes */
+ __u8 sector_size[2]; /* bytes per logical sector */
+ __u8 cluster_size; /* sectors/cluster */
+ __u16 reserved; /* reserved sectors */
+ __u8 fats; /* number of FATs */
+ __u8 dir_entries[2]; /* root directory entries */
+ __u8 sectors[2]; /* number of sectors */
+ __u8 media; /* media code (unused) */
+ __u16 fat_length; /* sectors/FAT */
+ __u16 secs_track; /* sectors per track */
+ __u16 heads; /* number of heads */
+ __u32 hidden; /* hidden sectors (unused) */
+ __u32 total_sect; /* number of sectors (if sectors == 0) */
+
+ __u8 drive_number; /* Logical Drive Number */
+ __u8 reserved2; /* Unused */
+
+ __u8 extended_sig; /* Extended Signature (0x29) */
+ __u32 serial; /* Serial number */
+ __u8 label[11]; /* FS label */
+ __u8 fs_type[8]; /* FS Type */
+
+ /* fill up to 512 bytes */
+ __u8 junk[450];
+} __attribute__ ((packed));
+
+struct info_sector {
+ __u32 magic; /* Magic for info sector ('RRaA') */
+ __u8 junk[0x1dc];
+ __u32 reserved1; /* Nothing as far as I can tell */
+ __u32 signature; /* 0x61417272 ('rrAa') */
+ __u32 free_clusters; /* Free cluster count. -1 if unknown */
+ __u32 next_cluster; /* Most recently allocated cluster. */
+ __u32 reserved2[3];
+ __u16 reserved3;
+ __u16 boot_sign;
+};
+
+typedef struct {
+ __u8 name[8], ext[3]; /* name and extension */
+ __u8 attr; /* attribute bits */
+ __u8 lcase; /* Case for base and extension */
+ __u8 ctime_ms; /* Creation time, milliseconds */
+ __u16 ctime; /* Creation time */
+ __u16 cdate; /* Creation date */
+ __u16 adate; /* Last access date */
+ __u16 starthi; /* High 16 bits of cluster in FAT32 */
+ __u16 time, date, start; /* time, date and first cluster */
+ __u32 size; /* file size (in bytes) */
+} __attribute__ ((packed)) DIR_ENT;
+
+typedef struct _dos_file {
+ DIR_ENT dir_ent;
+ char *lfn;
+ loff_t offset;
+ loff_t lfn_offset;
+ struct _dos_file *parent; /* parent directory */
+ struct _dos_file *next; /* next entry */
+ struct _dos_file *first; /* first entry (directory only) */
+} DOS_FILE;
+
+typedef struct {
+ unsigned long value;
+ unsigned long reserved;
+} FAT_ENTRY;
+
+typedef struct {
+ int nfats;
+ loff_t fat_start;
+ unsigned int fat_size; /* unit is bytes */
+ unsigned int fat_bits; /* size of a FAT entry */
+ unsigned int eff_fat_bits; /* # of used bits in a FAT entry */
+ unsigned long root_cluster; /* 0 for old-style root dir */
+ loff_t root_start;
+ unsigned int root_entries;
+ loff_t data_start;
+ unsigned int cluster_size;
+ unsigned long clusters;
+ loff_t fsinfo_start; /* 0 if not present */
+ long free_clusters;
+ loff_t backupboot_start; /* 0 if not present */
+ unsigned char *fat;
+ DOS_FILE **cluster_owner;
+ char *label;
+} DOS_FS;
+
+#ifndef offsetof
+#define offsetof(t,e) ((int)&(((t *)0)->e))
+#endif
+
+extern int interactive, rw, list, verbose, test, write_immed;
+extern int atari_format;
+extern unsigned n_files;
+extern void *mem_queue;
+
+/* value to use as end-of-file marker */
+#define FAT_EOF(fs) ((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
+#define FAT_IS_EOF(fs,v) ((unsigned long)(v) >= (0xff8|FAT_EXTD(fs)))
+/* value to mark bad clusters */
+#define FAT_BAD(fs) (0xff7 | FAT_EXTD(fs))
+/* range of values used for bad clusters */
+#define FAT_MIN_BAD(fs) ((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
+#define FAT_MAX_BAD(fs) ((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
+#define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <= FAT_MAX_BAD(fs))
+
+/* return -16 as a number with fs->fat_bits bits */
+#define FAT_EXTD(fs) (((1 << fs->eff_fat_bits)-1) & ~0xf)
+
+/* marker for files with no 8.3 name */
+#define FAT_NO_83NAME 32
+
+#endif
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