ole2

Documentation

Index

• Constants
• type File
  • func (d *File) Name() string
• type Header
• type Ole
  • func Open(reader io.ReadSeeker, charset string) (ole *Ole, err error)
  • func (o *Ole) ListDir() (dir []*File, err error)
  • func (o *Ole) OpenFile(file *File, root *File) io.ReadSeeker
• type Sector
  • func (s *Sector) AllValues(size uint32) []uint32
  • func (s *Sector) MsatValues(size uint32) []uint32
  • func (s *Sector) NextSid(size uint32) uint32
  • func (s *Sector) Uint32(bit uint32) uint32
• type StreamReader
  • func (r *StreamReader) Read(p []byte) (n int, err error)
  • func (r *StreamReader) Seek(offset int64, whence int) (int64, error)

Constants

const (
	EMPTY       = iota
	USERSTORAGE = iota
	USERSTREAM  = iota
	LOCKBYTES   = iota
	PROPERTY    = iota
	ROOT        = iota
)

File types in OLE2 directory

const ENDOFCHAIN = uint32(0xFFFFFFFE) //-2

const FREESECT = uint32(0xFFFFFFFF) // -1

Types

type File

type File struct {
	NameBts   [32]uint16
	Bsize     uint16
	Type      byte
	Flag      byte
	Left      uint32
	Right     uint32
	Child     uint32
	Guid      [8]uint16
	Userflags uint32
	Time      [2]uint64
	Sstart    uint32
	Size      uint32
	Proptype  uint32
}

File represents an entry in the OLE2 directory

func (*File) Name

func (d *File) Name() string

type Header

type Header struct {
	Id        [2]uint32
	Clid      [4]uint32
	Verminor  uint16
	Verdll    uint16
	Byteorder uint16
	Lsectorb  uint16
	Lssectorb uint16

	Cfat     uint32 //Total number of sectors used for the sector allocation table
	Dirstart uint32 //SecID of first sector of the directory stream

	Sectorcutoff uint32 //Minimum size of a standard stream
	Sfatstart    uint32 //SecID of first sector of the short-sector allocation table
	Csfat        uint32 //Total number of sectors used for the short-sector allocation table
	Difstart     uint32 //SecID of first sector of the master sector allocation table
	Cdif         uint32 //Total number of sectors used for the master sector allocation table
	Msat         [109]uint32
	// contains filtered or unexported fields
}

Header represents the OLE2 compound file header

type Ole

type Ole struct {
	Lsector  uint32
	Lssector uint32
	SecID    []uint32
	SSecID   []uint32
	Files    []File
	// contains filtered or unexported fields
}

Ole represents an OLE2 compound file

func Open

func Open(reader io.ReadSeeker, charset string) (ole *Ole, err error)

Open opens an OLE2 compound file

func (*Ole) ListDir

func (o *Ole) ListDir() (dir []*File, err error)

func (*Ole) OpenFile

func (o *Ole) OpenFile(file *File, root *File) io.ReadSeeker

type Sector

type Sector []byte

Sector represents a sector in OLE2 file

func (*Sector) AllValues

func (s *Sector) AllValues(size uint32) []uint32

func (*Sector) MsatValues

func (s *Sector) MsatValues(size uint32) []uint32

func (*Sector) NextSid

func (s *Sector) NextSid(size uint32) uint32

func (*Sector) Uint32

func (s *Sector) Uint32(bit uint32) uint32

type StreamReader

type StreamReader struct {
	// contains filtered or unexported fields
}

StreamReader reads streams from OLE2 file

func (*StreamReader) Read

func (r *StreamReader) Read(p []byte) (n int, err error)

func (*StreamReader) Seek

func (r *StreamReader) Seek(offset int64, whence int) (int64, error)