rossi.fstools.fs.ext2fs
Class DirEntry

java.lang.Object
  rossi.fstools.fs.ext2fs.DirEntry

All Implemented Interfaces:

DiskStructure

public class DirEntry

extends java.lang.Object

implements DiskStructure

Representation of a directory entry.

  On disk the directory entry looks like this:

        31        24        16       8       0
        --------------------------------------
  0000  |           Inode                    |
        --------------------------------------
  0004  |  Record Len       |NameLen | Type  |
        --------------------------------------
  0008  |        Name...                     |
        --------------------------------------
 

Field Summary

static int	EXT2_FT_BLKDEV Block device type
static int	EXT2_FT_CHRDEV Character device type
static int	EXT2_FT_DIR Directory type
static int	EXT2_FT_FIFO Fifo type
static int	EXT2_FT_REG_FILE Regular file type
static int	EXT2_FT_SOCK Socket type
static int	EXT2_FT_SYMLINK Symlink type
static int	EXT2_FT_UNKNOWN File type is unknown
protected long	inode
protected java.lang.String	name
protected int	nameLen
protected int	recordLen
protected int	type

Constructor Summary

DirEntry()

Method Summary

int	getDataSize() Get the size of this DirEntry.
long	getInode() Get the Inode number associated with this direntry.
java.lang.String	getName()
int	getNameLen() Get the length of the name in this record.
int	getRecordLen() Get the length of this record.
int	getType() Get the type of this file for EXT3 filesystem which support it.
void	loadFromBuffer(byte[] buffer, int offset) Loads the object from a memory buffer
void	setInode(long aInode)
void	setName(java.lang.String aName)
void	setNameLen(int aNameLen)
void	setRecordLen(int aRecordLen)
void	setType(int aType)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

inode

protected long inode

recordLen

protected int recordLen

nameLen

protected int nameLen

type

protected int type

name

protected java.lang.String name

EXT2_FT_UNKNOWN

public static final int EXT2_FT_UNKNOWN

File type is unknown

See Also:

Constant Field Values

EXT2_FT_REG_FILE

public static final int EXT2_FT_REG_FILE

Regular file type

See Also:

Constant Field Values

EXT2_FT_DIR

public static final int EXT2_FT_DIR

Directory type

See Also:

Constant Field Values

EXT2_FT_CHRDEV

public static final int EXT2_FT_CHRDEV

Character device type

See Also:

Constant Field Values

EXT2_FT_BLKDEV

public static final int EXT2_FT_BLKDEV

Block device type

See Also:

Constant Field Values

EXT2_FT_FIFO

public static final int EXT2_FT_FIFO

Fifo type

See Also:

Constant Field Values

EXT2_FT_SOCK

public static final int EXT2_FT_SOCK

Socket type

See Also:

Constant Field Values

EXT2_FT_SYMLINK

public static final int EXT2_FT_SYMLINK

Symlink type

See Also:

Constant Field Values

Constructor Detail

DirEntry

public DirEntry()

Method Detail

getDataSize

public int getDataSize()

Get the size of this DirEntry. Note that dir entries are variable sized.

Specified by:

getDataSize in interface DiskStructure

Returns:

size

getInode

public long getInode()

Get the Inode number associated with this direntry.

Returns:

inode number

setInode

public void setInode(long aInode)

getRecordLen

public int getRecordLen()

Get the length of this record.

Returns:

record length

setRecordLen

public void setRecordLen(int aRecordLen)

getNameLen

public int getNameLen()

Get the length of the name in this record.

Returns:

name length

setNameLen

public void setNameLen(int aNameLen)

getName

public java.lang.String getName()

setName

public void setName(java.lang.String aName)

getType

public int getType()

Get the type of this file for EXT3 filesystem which support it. Must have feature EXT2_FEATURE_INCOMPAT_FILETYPE set in the superblock.

Returns:

type

setType

public void setType(int aType)

loadFromBuffer

public void loadFromBuffer(byte[] buffer,
                           int offset)
                    throws FsException

Description copied from interface: DiskStructure

Loads the object from a memory buffer

Specified by:

loadFromBuffer in interface DiskStructure

Parameters:

buffer - a byte[] containing data to be read in populating the object

offset - a int indicating the offset within the buffer to start parsing.

Throws:

FsException - if a parse error occurs.