Add pac_tools/unpac_perl

pac_tools/unpac_perl/Archive/Tar/Constant.pm

@@ -0,0 +1,86 @@
+package Archive::Tar::Constant;
+
+BEGIN {
+    require Exporter;
+
+    $VERSION    = '1.90';
+    @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 ' ', $) )[0];
+
+use constant MODE           => do { 0666 & (0777 & ~umask) };
+use constant STRIP_MODE     => sub { shift() & 0777 };
+use constant CHECK_SUM      => "      ";
+
+use constant UNPACK         => 'A100 A8 A8 A8 a12 A12 A8 A1 A100 A6 A2 A32 A32 A8 A8 A155 x12';	# cdrake - size must be a12 - not A12 - or else screws up huge file sizes (>8gb)
+use constant PACK           => 'a100 a8 a8 a8 a12 a12 A8 a1 a100 a6 a2 a32 a32 a8 a8 a155 x12';
+use constant NAME_LENGTH    => 100;
+use constant PREFIX_LENGTH  => 155;
+
+use constant TIME_OFFSET    => ($^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;