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lib/Archive/Tar/Constant.pm  view on Meta::CPAN

use constant BLOCK_SIZE     => sub { my $n = int($_[0]/BLOCK); $n++ if $_[0] % BLOCK; $n * BLOCK };
use constant TAR_PAD        => sub { my $x = shift || return; return "\0" x (BLOCK - ($x % BLOCK) ) };
use constant TAR_END        => "\0" x BLOCK;

use constant READ_ONLY      => sub { shift() ? 'rb' : 'r' };
use constant WRITE_ONLY     => sub { $_[0] ? 'wb' . shift : 'w' };
use constant MODE_READ      => sub { $_[0] =~ /^r/ ? 1 : 0 };

# Pointless assignment to make -w shut up
my $getpwuid; $getpwuid = 'unknown' unless eval { my $f = getpwuid (0); };
my $getgrgid; $getgrgid = 'unknown' unless eval { my $f = getgrgid (0); };
use constant UNAME          => sub { $getpwuid || scalar getpwuid( shift() ) || '' };
use constant GNAME          => sub { $getgrgid || scalar getgrgid( shift() ) || '' };
use constant UID            => $>;
use constant GID            => (split ' ', $) )[0];

use constant MODE           => do { 0666 & (0777 & ~umask) };
use constant STRIP_MODE     => sub { shift() & 0777 };
use constant CHECK_SUM      => "      ";

use constant UNPACK         => 'a100 a8 a8 a8 a12 a12 a8 a1 a100 A6 a2 a32 a32 a8 a8 a155 x12';	# cdrake - size must be a12 - not A12 - or else screws up huge file sizes (>8gb)
use constant PACK           => 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a6 a2 a32 a32 a8 a8 a155 x12';