ustar_header Struct Reference

Header for ustar-format tar archive. More...

Data Fields
char	name [100]
	File name. More...
char	mode [8]
	Permissions as octal string. More...
char	uid [8]
	User ID as octal string. More...
char	gid [8]
	Group ID as octal string. More...
char	size [12]
	File size in bytes as octal string. More...
char	mtime [12]
	Modification time in seconds from Jan 1, 1970, as octal string. More...
char	chksum [8]
	Sum of octets in header as octal string. More...
char	typeflag
	An enum ustar_type value. More...
char	linkname [100]
	Name of link target. More...
char	magic [6]
	"ustar\0" More...
char	version [2]
	"00" More...
char	uname [32]
	User name, always null-terminated. More...
char	gname [32]
	Group name, always null-terminated. More...
char	devmajor [8]
	Device major number as octal string. More...
char	devminor [8]
	Device minor number as octal string. More...
char	prefix [155]
	Prefix to file name. More...
char	padding [12]
	Pad to 512 bytes. More...

Detailed Description

Header for ustar-format tar archive.

See the documentation of the "pax" utility in [SUSv3] for the the "ustar" format specification.

Definition at line 10 of file ustar.c.

Field Documentation

chksum

char ustar_header::chksum[8]

Sum of octets in header as octal string.

Definition at line 19 of file ustar.c.

Referenced by calculate_chksum(), ustar_make_header(), and ustar_parse_header().

devmajor

char ustar_header::devmajor[8]

Device major number as octal string.

Definition at line 27 of file ustar.c.

devminor

char ustar_header::devminor[8]

Device minor number as octal string.

Definition at line 28 of file ustar.c.

gid

char ustar_header::gid[8]

Group ID as octal string.

Definition at line 15 of file ustar.c.

Referenced by ustar_make_header().

gname

char ustar_header::gname[32]

Group name, always null-terminated.

Definition at line 26 of file ustar.c.

Referenced by ustar_make_header().

linkname

char ustar_header::linkname[100]

Name of link target.

Null-terminated if room.

Definition at line 21 of file ustar.c.

magic

char ustar_header::magic[6]

"ustar\0"

Definition at line 23 of file ustar.c.

Referenced by ustar_make_header(), and ustar_parse_header().

mode

char ustar_header::mode[8]

Permissions as octal string.

Definition at line 13 of file ustar.c.

Referenced by ustar_make_header().

mtime

char ustar_header::mtime[12]

Modification time in seconds from Jan 1, 1970, as octal string.

Definition at line 17 of file ustar.c.

Referenced by ustar_make_header().

name

char ustar_header::name[100]

File name.

Null-terminated if room.

Definition at line 12 of file ustar.c.

Referenced by ustar_make_header(), and ustar_parse_header().

padding

char ustar_header::padding[12]

Pad to 512 bytes.

Definition at line 31 of file ustar.c.

prefix

char ustar_header::prefix[155]

Prefix to file name.

Null-terminated if room.

Definition at line 29 of file ustar.c.

Referenced by ustar_parse_header().

size

char ustar_header::size[12]

File size in bytes as octal string.

Definition at line 16 of file ustar.c.

Referenced by arc4_crypt(), arc4_init(), parse_octal_field(), ustar_make_header(), and ustar_parse_header().

typeflag

char ustar_header::typeflag

An enum ustar_type value.

Definition at line 20 of file ustar.c.

Referenced by ustar_make_header(), and ustar_parse_header().

uid

char ustar_header::uid[8]

User ID as octal string.

Definition at line 14 of file ustar.c.

Referenced by ustar_make_header().

uname

char ustar_header::uname[32]

User name, always null-terminated.

Definition at line 25 of file ustar.c.

Referenced by ustar_make_header().

version

char ustar_header::version[2]

"00"

Definition at line 24 of file ustar.c.

Referenced by ustar_make_header(), and ustar_parse_header().

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The documentation for this struct was generated from the following file:

• src/lib/ustar.c