gho

package module

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Versions in this module

v1

v1.4.0

May 5, 2026

Changes in this version

type Image

+ func (img *Image) Verify(partIdx int) error

type PartitionInfo

+ func (p *PartitionInfo) TotalCompressedSize() int64

type Writer

+ func (gw *Writer) SetPassword(password string)

v1.3.0

May 5, 2026

v1.2.0

May 5, 2026

Changes in this version

+ var ErrBadPassword = errors.New("gho: invalid password")

+ func IsEncrypted(header []byte) bool

+ func ZlibCompress(src []byte, level int) []byte

+ func ZlibDecompress(data []byte, compLen int, dst []byte) (int, error)

+ type CRC16Cipher struct

+ func NewCRC16Cipher(password string) (*CRC16Cipher, error)

+ func (c *CRC16Cipher) Decrypt(data []byte)

+ func (c *CRC16Cipher) Encrypt(data []byte)

+ func (c *CRC16Cipher) Reset(password string)

type Image

+ func OpenSpanned(primaryPath string) (*Image, error)

+ func (img *Image) IsEncrypted() bool

+ func (img *Image) SetPassword(password string)

v1.1.0

May 5, 2026

Changes in this version

+ const FixupCD

+ const FixupCDOff

+ const FixupSpan

+ func FastLZCompress(src []byte) []byte

+ func ModifyHeader(path string, mode string) error

+ type Writer struct

+ func Create(path string, compression byte) (*Writer, error)

+ func NewWriter(w io.WriteSeeker, compression byte) (*Writer, error)

+ func (gw *Writer) Close() error

+ func (gw *Writer) SetID(id uint32)

+ func (gw *Writer) WritePartition(r io.Reader) error

+ func (gw *Writer) WriteTrack0(track0Data []byte, sectors byte) error

v1.0.0

May 5, 2026

Changes in this version

+ const BlockSize

+ const CompressionFast

+ const CompressionHigh3

+ const CompressionHigh4

+ const CompressionHigh5

+ const CompressionHigh6

+ const CompressionHigh7

+ const CompressionHigh8

+ const CompressionHigh9

+ const CompressionNone

+ const CompressionOld

+ const FastLZHashSize

+ const FileMagic

+ const HeaderSize

+ const MaxStoredLen

+ const RecordHeaderSize

+ const RecordMagic

+ const RecordTypeContinuation

+ const RecordTypeEnd

+ const RecordTypePartition

+ const RecordTypeTrack0

+ var ErrCorruptBlock = errors.New("gho: corrupt compressed block")

+ var ErrInvalidMagic = errors.New("gho: invalid file magic")

+ var ErrInvalidRecordMagic = errors.New("gho: invalid record magic")

+ var ErrTruncated = errors.New("gho: unexpected end of data")

+ var ErrUnsupportedCompression = errors.New("gho: unsupported compression type")

+ func FastLZDecompress(data []byte, compLen int, dst []byte) (int, error)

+ type FileHeader struct

+ Compression byte

+ FileType byte

+ Flags [3]byte

+ ID uint32

+ Magic uint16

+ Raw [512]byte

+ func ParseFileHeader(data []byte) (*FileHeader, error)

+ type Image struct

+ EndRecord *Record

+ Header *FileHeader

+ Partitions []PartitionInfo

+ Track0 []byte

+ Track0Hdr Track0Header

+ func Open(path string) (*Image, error)

+ func (img *Image) Close() error

+ func (img *Image) DecompressPartition(partIdx int, w io.Writer) error

+ func (img *Image) MBRPartitions() []MBRPartitionEntry

+ func (img *Image) Summary() string

+ type MBRPartitionEntry struct

+ CHSEnd [3]byte

+ CHSStart [3]byte

+ LBASize uint32

+ LBAStart uint32

+ Status byte

+ Type byte

+ func ParseMBRPartitions(mbr []byte) []MBRPartitionEntry

+ type PartitionHeader struct

+ Compression byte

+ Flags [3]byte

+ ID uint32

+ Magic uint16

+ Raw [512]byte

+ SubType byte

+ func ParsePartitionHeader(data []byte) (*PartitionHeader, error)

+ type PartitionInfo struct

+ DescBody [20]byte

+ Descriptor *Record

+ Header *PartitionHeader

+ Spans []Span

+ type Record struct

+ BodyLen uint16

+ Magic uint32

+ Offset int64

+ Type uint32

+ func ParseRecord(data []byte, offset int64) (*Record, error)

+ func (r Record) TypeCode() uint16

+ type Span struct

+ DataEnd int64

+ DataStart int64

+ type Track0Header struct

+ Sectors byte

+ Unknown1 byte

+ Unknown2 uint32

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