Classes
struct	partitionTable
	MBR partition table entry. More...

struct	masterBootRecord
	Master Boot Record. More...

struct	biosParmBlock
	BIOS parameter block. More...

struct	fat32BootSector
	Boot sector for a FAT16 or FAT32 volume. More...

struct	directoryEntry
	FAT short directory entry. More...

Macros
#define	BOOTSIG0 0X55

#define	BOOTSIG1 0XAA

#define	FAT16EOC_MIN 0XFFF8

#define	FAT32EOC_MIN 0X0FFFFFF8

#define	FAT16EOC 0XFFFF

#define	FAT32EOC 0X0FFFFFFF

#define	FAT32MASK 0X0FFFFFFF

#define	DIR_NAME_0XE5 0X05

#define	DIR_NAME_DELETED 0XE5

#define	DIR_NAME_FREE 0X00

#define	DIR_ATT_READ_ONLY 0X01

#define	DIR_ATT_HIDDEN 0X02

#define	DIR_ATT_SYSTEM 0X04

#define	DIR_ATT_VOLUME_ID 0X08

#define	DIR_ATT_DIRECTORY 0X10

#define	DIR_ATT_ARCHIVE 0X20

#define	DIR_ATT_LONG_NAME 0X0F

#define	DIR_ATT_LONG_NAME_MASK 0X3F

#define	DIR_ATT_DEFINED_BITS 0X3F

#define	DIR_IS_LONG_NAME(dir) (((dir).attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME)

#define	DIR_ATT_FILE_TYPE_MASK (DIR_ATT_VOLUME_ID \| DIR_ATT_DIRECTORY)

#define	DIR_IS_FILE(dir) (((dir).attributes & DIR_ATT_FILE_TYPE_MASK) == 0)

#define	DIR_IS_SUBDIR(dir) (((dir).attributes & DIR_ATT_FILE_TYPE_MASK) == DIR_ATT_DIRECTORY)

#define	DIR_IS_FILE_OR_SUBDIR(dir) (((dir).attributes & DIR_ATT_VOLUME_ID) == 0)

Typedefs
typedef struct partitionTable	part_t

typedef struct masterBootRecord	mbr_t

typedef struct biosParmBlock	bpb_t

typedef struct fat32BootSector	fbs_t

typedef struct directoryEntry	dir_t

Detailed Description

FAT file structures

Macro Definition Documentation

◆ BOOTSIG0

#define BOOTSIG0 0X55

Value for byte 510 of boot block or MBR

◆ BOOTSIG1

#define BOOTSIG1 0XAA

Value for byte 511 of boot block or MBR

◆ FAT16EOC_MIN

#define FAT16EOC_MIN 0XFFF8

Minimum value for FAT16 EOC. Use to test for EOC.

◆ FAT32EOC_MIN

#define FAT32EOC_MIN 0X0FFFFFF8

Minimum value for FAT32 EOC. Use to test for EOC.

◆ FAT16EOC

#define FAT16EOC 0XFFFF

FAT16 end of chain value used by Microsoft.

◆ FAT32EOC

#define FAT32EOC 0X0FFFFFFF

FAT32 end of chain value used by Microsoft.

◆ FAT32MASK

#define FAT32MASK 0X0FFFFFFF

Mask a for FAT32 entry. Entries are 28 bits.

◆ DIR_NAME_0XE5

#define DIR_NAME_0XE5 0X05

escape for name[0] = 0XE5

◆ DIR_NAME_DELETED

#define DIR_NAME_DELETED 0XE5

name[0] value for entry that is free after being "deleted"

◆ DIR_NAME_FREE

#define DIR_NAME_FREE 0X00

name[0] value for entry that is free and no allocated entries follow

◆ DIR_ATT_READ_ONLY

#define DIR_ATT_READ_ONLY 0X01

file is read-only

◆ DIR_ATT_HIDDEN

#define DIR_ATT_HIDDEN 0X02

File should hidden in directory listings

◆ DIR_ATT_SYSTEM

#define DIR_ATT_SYSTEM 0X04

Entry is for a system file

◆ DIR_ATT_VOLUME_ID

#define DIR_ATT_VOLUME_ID 0X08

Directory entry contains the volume label

◆ DIR_ATT_DIRECTORY

#define DIR_ATT_DIRECTORY 0X10

Entry is for a directory

◆ DIR_ATT_ARCHIVE

#define DIR_ATT_ARCHIVE 0X20

Old DOS archive bit for backup support

◆ DIR_ATT_LONG_NAME

#define DIR_ATT_LONG_NAME 0X0F

Test value for long name entry. Test is d->attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME.

◆ DIR_ATT_LONG_NAME_MASK

#define DIR_ATT_LONG_NAME_MASK 0X3F

Test mask for long name entry

◆ DIR_ATT_DEFINED_BITS

#define DIR_ATT_DEFINED_BITS 0X3F

defined attribute bits

◆ DIR_IS_LONG_NAME

#define DIR_IS_LONG_NAME ( dir ) (((dir).attributes & DIR_ATT_LONG_NAME_MASK) == DIR_ATT_LONG_NAME)

Directory entry is part of a long name

◆ DIR_ATT_FILE_TYPE_MASK

#define DIR_ATT_FILE_TYPE_MASK (DIR_ATT_VOLUME_ID | DIR_ATT_DIRECTORY)

Mask for file/subdirectory tests

◆ DIR_IS_FILE

#define DIR_IS_FILE ( dir ) (((dir).attributes & DIR_ATT_FILE_TYPE_MASK) == 0)

Directory entry is for a file

◆ DIR_IS_SUBDIR

#define DIR_IS_SUBDIR ( dir ) (((dir).attributes & DIR_ATT_FILE_TYPE_MASK) == DIR_ATT_DIRECTORY)

Directory entry is for a subdirectory

◆ DIR_IS_FILE_OR_SUBDIR

#define DIR_IS_FILE_OR_SUBDIR ( dir ) (((dir).attributes & DIR_ATT_VOLUME_ID) == 0)

Directory entry is for a file or subdirectory

Typedef Documentation

◆ part_t

typedef struct partitionTable part_t

Type name for partitionTable

◆ mbr_t

typedef struct masterBootRecord mbr_t

Type name for masterBootRecord

◆ bpb_t

typedef struct biosParmBlock bpb_t

Type name for biosParmBlock

◆ fbs_t

typedef struct fat32BootSector fbs_t

Type name for fat32BootSector

◆ dir_t

typedef struct directoryEntry dir_t

Type name for directoryEntry

Classes

Macros

Typedefs