htape

README

htape

Go library for handling Hercules tape images

Documentation

Index

• type AWSFlags
• type AWSTapeBlock
  • func UnmarshalAWSBlock(in io.Reader) (*AWSTapeBlock, error)
  • func (b *AWSTapeBlock) Marshal() []byte

Types

type AWSFlags

type AWSFlags uint8

AWSFlags is a bitfield representing flags for a single AWS block

const (
	// AWSRecordEnd indicates the end of a logical record
	AWSRecordEnd AWSFlags = 0x20 << iota
	// AWSTapeMark indicates this block is a tape mark (no data)
	AWSTapeMark
	// AWSRecordStart indicates the start of a logical record
	AWSRecordStart
)

type AWSTapeBlock

type AWSTapeBlock struct {
	// CurrentLength is the length of the current block
	CurrentLength uint16
	// PreviousLength is the length of the previous block
	PreviousLength uint16

	// Flags1 is the field for standard AWS flags (see AWSFlags)
	Flags1 AWSFlags
	// Flags2 is a reserved field for future flags
	Flags2 uint8

	// Data for current block
	Data []byte
}

AWSTapeBlock is a single block of an AWS tape image

func UnmarshalAWSBlock

func UnmarshalAWSBlock(in io.Reader) (*AWSTapeBlock, error)

UnmarshalAWSBlock reads an AWS tape block from a stream

func (*AWSTapeBlock) Marshal

func (b *AWSTapeBlock) Marshal() []byte

Marshal create a binary representation of this block