/* dosfsck.h  -  Common data structures and global variables *//* Written 1993 by Werner Almesberger *//* 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#define __arm#if __BYTE_ORDER == __BIG_ENDIAN#include <asm/byteorder.h>#ifdef __le16_to_cpu/* ++roman: 2.1 kernel headers define these function, they're probably more * efficient then coding the swaps machine-independently. */#define CF_LE_W	__le16_to_cpu#define CF_LE_L	__le32_to_cpu#define CT_LE_W	__cpu_to_le16#define CT_LE_L	__cpu_to_le32#else#define CF_LE_W(v) ((((v) & 0xff) << 8) | (((v) >> 8) & 0xff))#define CF_LE_L(v) (((unsigned)(v)>>24) | (((unsigned)(v)>>8)&0xff00) | \               (((unsigned)(v)<<8)&0xff0000) | ((unsigned)(v)<<24))#define CT_LE_W(v) CF_LE_W(v)#define CT_LE_L(v) CF_LE_L(v)#endif /* defined(__le16_to_cpu) */    #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 */#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 <linux/msdos_fs.h>/* 2.1 kernels use le16_to_cpu() type functions for CF_LE_W & Co., but don't * export this macros, only __le16_to_cpu(). */#ifndef le16_to_cpu#define le16_to_cpu	__le16_to_cpu#define le32_to_cpu	__le32_to_cpu#define cpu_to_le16	__cpu_to_le16#define cpu_to_le32	__cpu_to_le32#endif#define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)/* ++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 */    __u16	reserved2[6];	/* Unused */    /* fill up to 512 bytes */    __u8	junk[448];} __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 {    __s8	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) */} DIR_ENT;typedef struct _dos_file {    DIR_ENT dir_ent;    char *lfn;    loff_t 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;    DOS_FILE *owner;    int prev; /* number of previous clusters */} 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 */    FAT_ENTRY *fat;} DOS_FS;#ifndef offsetof#define offsetof(t,e)	((int)&(((t *)0)->e))#endifextern int interactive,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)#endif/* Local Variables: *//* tab-width: 8     *//* End:             */