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package Archive::Tar::Constant;
BEGIN {
require Exporter;
$VERSION = '0.02';
@ISA = qw[Exporter];
require Time::Local if $^O eq "MacOS";
}
use Package::Constants;
@EXPORT = Package::Constants->list( __PACKAGE__ );
use constant FILE => 0;
use constant HARDLINK => 1;
use constant SYMLINK => 2;
use constant CHARDEV => 3;
use constant BLOCKDEV => 4;
use constant DIR => 5;
use constant FIFO => 6;
use constant SOCKET => 8;
use constant UNKNOWN => 9;
use constant LONGLINK => 'L';
use constant LABEL => 'V';
use constant BUFFER => 4096;
use constant HEAD => 512;
use constant BLOCK => 512;
use constant COMPRESS_GZIP => 9;
use constant COMPRESS_BZIP => 'bzip2';
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 ' ', $) )[0];
use constant MODE => do { 0666 & (0777 & ~umask) };
use constant STRIP_MODE => sub { shift() & 0777 };
use constant CHECK_SUM => " ";
use constant UNPACK => 'A100 A8 A8 A8 A12 A12 A8 A1 A100 A6 A2 A32 A32 A8 A8 A155 x12';
use constant PACK => 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a6 a2 a32 a32 a8 a8 a155 x12';
use constant NAME_LENGTH => 100;
use constant PREFIX_LENGTH => 155;
use constant TIME_OFFSET => ($^O eq "MacOS") ? Time::Local::timelocal(0,0,0,1,0,70) : 0;
use constant MAGIC => "ustar";
use constant TAR_VERSION => "00";
use constant LONGLINK_NAME => '././@LongLink';
use constant PAX_HEADER => 'pax_global_header';
### allow ZLIB to be turned off using ENV: DEBUG only
use constant ZLIB => do { !$ENV{'PERL5_AT_NO_ZLIB'} and
eval { require IO::Zlib };
$ENV{'PERL5_AT_NO_ZLIB'} || $@ ? 0 : 1
};
### allow BZIP to be turned off using ENV: DEBUG only
use constant BZIP => do { !$ENV{'PERL5_AT_NO_BZIP'} and
eval { require IO::Uncompress::Bunzip2;
require IO::Compress::Bzip2; };
$ENV{'PERL5_AT_NO_BZIP'} || $@ ? 0 : 1
};
use constant GZIP_MAGIC_NUM => qr/^(?:\037\213|\037\235)/;
use constant BZIP_MAGIC_NUM => qr/^BZh\d/;
use constant CAN_CHOWN => sub { ($> == 0 and $^O ne "MacOS" and $^O ne "MSWin32") };
use constant CAN_READLINK => ($^O ne 'MSWin32' and $^O !~ /RISC(?:[ _])?OS/i and $^O ne 'VMS');
use constant ON_UNIX => ($^O ne 'MSWin32' and $^O ne 'MacOS' and $^O ne 'VMS');
use constant ON_VMS => $^O eq 'VMS';
1;
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