Module: Omnizip::Formats::Tar::Constants

Included in:
Entry, Header, Reader, Writer
Defined in:
lib/omnizip/formats/tar/constants.rb

Overview

TAR format constants

Constant Summary collapse

HEADER_SIZE =

TAR header size (POSIX ustar format)

512
BLOCK_SIZE =

Block size for TAR archives

512
TYPE_REGULAR =

Type flags for TAR entries

"0"
"1"
"2"
TYPE_CHAR_DEVICE =

Symbolic link

"3"
TYPE_BLOCK_DEVICE =

Character device

"4"
TYPE_DIRECTORY =

Block device

"5"
TYPE_FIFO =

Directory

"6"
TYPE_CONTIGUOUS =

FIFO

"7"
TYPE_EXTENDED =

Contiguous file

"x"
TYPE_GLOBAL_EXTENDED =

Extended header

"g"
TYPE_GNU_LONGNAME =

Global extended header

"L"
"K"
USTAR_MAGIC =

POSIX ustar magic value

"ustar"
USTAR_VERSION =

POSIX ustar version

"00"
MAX_FILE_SIZE =

Maximum file size (8GB - 1 for base-8 12-byte field)

(8**12) - 1
NAME_OFFSET =

Field positions in TAR header

0
NAME_SIZE = 
100
MODE_OFFSET = 
100
MODE_SIZE = 
8
UID_OFFSET = 
108
UID_SIZE = 
8
GID_OFFSET = 
116
GID_SIZE = 
8
SIZE_OFFSET = 
124
SIZE_SIZE = 
12
MTIME_OFFSET = 
136
MTIME_SIZE = 
12
CHECKSUM_OFFSET = 
148
CHECKSUM_SIZE = 
8
TYPEFLAG_OFFSET = 
156
TYPEFLAG_SIZE = 
1
LINKNAME_OFFSET = 
157
LINKNAME_SIZE = 
100
MAGIC_OFFSET = 
257
MAGIC_SIZE = 
6
VERSION_OFFSET = 
263
VERSION_SIZE = 
2
UNAME_OFFSET = 
265
UNAME_SIZE = 
32
GNAME_OFFSET = 
297
GNAME_SIZE = 
32
DEVMAJOR_OFFSET = 
329
DEVMAJOR_SIZE = 
8
DEVMINOR_OFFSET = 
337
DEVMINOR_SIZE = 
8
PREFIX_OFFSET = 
345
PREFIX_SIZE = 
155