diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/Archive/Tar/Constant.pm')
-rw-r--r-- | Master/tlpkg/tlperl/lib/Archive/Tar/Constant.pm | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/Archive/Tar/Constant.pm b/Master/tlpkg/tlperl/lib/Archive/Tar/Constant.pm new file mode 100644 index 00000000000..aef1d623fa8 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/Archive/Tar/Constant.pm @@ -0,0 +1,86 @@ +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; |