cpio

package module
v1.0.2-0...-46eca3a Latest Latest
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 Go to latest Published: Oct 10, 2018 License: Apache-2.0 Imports: 5 Imported by: 0

README

gocpio is a simple library similar to Go’s tar or zip package for accessing cpio archives. It’s not pretty and only implements the new ASCII format. Maybe I’ll refactor and implement other formats some day.

Version 1.1.0

Documentation

Overview

Package cpio implements access to cpio archives. Implementation of the new ASCII formate (SVR4) defined here: http://people.freebsd.org/~kientzle/libarchive/man/cpio.5.txt

Index

Constants

View Source 
const (
	TYPE_SOCK    = 014
	TYPE_SYMLINK = 012
	TYPE_REG     = 010
	TYPE_BLK     = 006
	TYPE_DIR     = 004
	TYPE_CHAR    = 002
	TYPE_FIFO    = 001
)

File types

View Source 
const (
	VERSION = "1.1.0"
)

Variables

View Source 
var (
	ErrInvalidHeader = errors.New("Did not find valid magic number")
)

Functions

This section is empty.

Types 

type Header struct {
	Mode     int64 // permission and mode bits.
	Uid      int   // user id of owner.
	Gid      int   // group id of owner.
	Mtime    int64 // modified time; seconds since epoch.
	Size     int64 // length in bytes.
	Devmajor int64 // major number of character or block device.
	Devminor int64 // minor number of character or block device.
	Type     int64
	Name     string // name of header file entry.
}

Header represents file meta data in an archive. Some fields may not be populated.

func (*Header) IsTrailer 

func (h *Header) IsTrailer() bool

type Reader 

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

func NewReader 

func NewReader(r io.Reader) *Reader

func (*Reader) Next 

func (r *Reader) Next() (*Header, error)

func (*Reader) Read 

func (r *Reader) Read(b []byte) (int, error)

type Writer 

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

A writer enables sequential writing of cpio archives. A call to WriteHeader begins a new file. Every call to write afterwards appends to that file, writing at most hdr.Size bytes in total.

func NewWriter 

func NewWriter(w io.Writer) *Writer

func (*Writer) Close 

func (w *Writer) Close() error

Writes trailer Does not close underlying writer

func (*Writer) Write 

func (w *Writer) Write(b []byte) (n int, e error)

func (*Writer) WriteHeader 

func (w *Writer) WriteHeader(hdr *Header) error

Source Files

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