diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/IO/Compress')
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Bzip2.pm | 162 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Deflate.pm | 165 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Identity.pm | 101 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Base.pm | 981 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Base/Common.pm | 956 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Bzip2.pm | 758 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Deflate.pm | 930 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Gzip.pm | 1242 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Gzip/Constants.pm | 148 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/RawDeflate.pm | 1017 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Zip.pm | 1612 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Zip/Constants.pm | 105 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Constants.pm | 77 | ||||
| -rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Extra.pm | 198 |
14 files changed, 8452 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Bzip2.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Bzip2.pm new file mode 100755 index 00000000000..3e2e89f8e12 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Bzip2.pm @@ -0,0 +1,162 @@ +package IO::Compress::Adapter::Bzip2 ; + +use strict; +use warnings; +use bytes; + +use IO::Compress::Base::Common 2.024 qw(:Status); + +#use Compress::Bzip2 ; +use Compress::Raw::Bzip2 2.024 ; + +our ($VERSION); +$VERSION = '2.024'; + +sub mkCompObject +{ + my $BlockSize100K = shift ; + my $WorkFactor = shift ; + my $Verbosity = shift ; + + my ($def, $status) = new Compress::Raw::Bzip2(1, $BlockSize100K, + $WorkFactor, $Verbosity); + #my ($def, $status) = bzdeflateInit(); + #-BlockSize100K => $params->value('BlockSize100K'), + #-WorkFactor => $params->value('WorkFactor'); + + return (undef, "Could not create Deflate object: $status", $status) + if $status != BZ_OK ; + + return bless {'Def' => $def, + 'Error' => '', + 'ErrorNo' => 0, + } ; +} + +sub compr +{ + my $self = shift ; + + my $def = $self->{Def}; + + #my ($out, $status) = $def->bzdeflate(defined ${$_[0]} ? ${$_[0]} : "") ; + my $status = $def->bzdeflate($_[0], $_[1]) ; + $self->{ErrorNo} = $status; + + if ($status != BZ_RUN_OK) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + #${ $_[1] } .= $out if defined $out; + + return STATUS_OK; +} + +sub flush +{ + my $self = shift ; + + my $def = $self->{Def}; + + #my ($out, $status) = $def->bzflush($opt); + #my $status = $def->bzflush($_[0], $opt); + my $status = $def->bzflush($_[0]); + $self->{ErrorNo} = $status; + + if ($status != BZ_RUN_OK) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + #${ $_[0] } .= $out if defined $out ; + return STATUS_OK; + +} + +sub close +{ + my $self = shift ; + + my $def = $self->{Def}; + + #my ($out, $status) = $def->bzclose(); + my $status = $def->bzclose($_[0]); + $self->{ErrorNo} = $status; + + if ($status != BZ_STREAM_END) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + #${ $_[0] } .= $out if defined $out ; + return STATUS_OK; + +} + + +sub reset +{ + my $self = shift ; + + my $outer = $self->{Outer}; + + my ($def, $status) = new Compress::Raw::Bzip2(); + $self->{ErrorNo} = ($status == BZ_OK) ? 0 : $status ; + + if ($status != BZ_OK) + { + $self->{Error} = "Cannot create Deflate object: $status"; + return STATUS_ERROR; + } + + $self->{Def} = $def; + + return STATUS_OK; +} + +sub compressedBytes +{ + my $self = shift ; + $self->{Def}->compressedBytes(); +} + +sub uncompressedBytes +{ + my $self = shift ; + $self->{Def}->uncompressedBytes(); +} + +#sub total_out +#{ +# my $self = shift ; +# 0; +#} +# + +#sub total_in +#{ +# my $self = shift ; +# $self->{Def}->total_in(); +#} +# +#sub crc32 +#{ +# my $self = shift ; +# $self->{Def}->crc32(); +#} +# +#sub adler32 +#{ +# my $self = shift ; +# $self->{Def}->adler32(); +#} + + +1; + +__END__ + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Deflate.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Deflate.pm new file mode 100755 index 00000000000..f23a9819c67 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Deflate.pm @@ -0,0 +1,165 @@ +package IO::Compress::Adapter::Deflate ; + +use strict; +use warnings; +use bytes; + +use IO::Compress::Base::Common 2.024 qw(:Status); + +use Compress::Raw::Zlib 2.024 qw(Z_OK Z_FINISH MAX_WBITS) ; +our ($VERSION); + +$VERSION = '2.024'; + +sub mkCompObject +{ + my $crc32 = shift ; + my $adler32 = shift ; + my $level = shift ; + my $strategy = shift ; + + my ($def, $status) = new Compress::Raw::Zlib::Deflate + -AppendOutput => 1, + -CRC32 => $crc32, + -ADLER32 => $adler32, + -Level => $level, + -Strategy => $strategy, + -WindowBits => - MAX_WBITS; + + return (undef, "Cannot create Deflate object: $status", $status) + if $status != Z_OK; + + return bless {'Def' => $def, + 'Error' => '', + } ; +} + +sub compr +{ + my $self = shift ; + + my $def = $self->{Def}; + + my $status = $def->deflate($_[0], $_[1]) ; + $self->{ErrorNo} = $status; + + if ($status != Z_OK) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + return STATUS_OK; +} + +sub flush +{ + my $self = shift ; + + my $def = $self->{Def}; + + my $opt = $_[1] || Z_FINISH; + my $status = $def->flush($_[0], $opt); + $self->{ErrorNo} = $status; + + if ($status != Z_OK) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + return STATUS_OK; + +} + +sub close +{ + my $self = shift ; + + my $def = $self->{Def}; + + $def->flush($_[0], Z_FINISH) + if defined $def ; +} + +sub reset +{ + my $self = shift ; + + my $def = $self->{Def}; + + my $status = $def->deflateReset() ; + $self->{ErrorNo} = $status; + if ($status != Z_OK) + { + $self->{Error} = "Deflate Error: $status"; + return STATUS_ERROR; + } + + return STATUS_OK; +} + +sub deflateParams +{ + my $self = shift ; + + my $def = $self->{Def}; + + my $status = $def->deflateParams(@_); + $self->{ErrorNo} = $status; + if ($status != Z_OK) + { + $self->{Error} = "deflateParams Error: $status"; + return STATUS_ERROR; + } + + return STATUS_OK; +} + + + +#sub total_out +#{ +# my $self = shift ; +# $self->{Def}->total_out(); +#} +# +#sub total_in +#{ +# my $self = shift ; +# $self->{Def}->total_in(); +#} + +sub compressedBytes +{ + my $self = shift ; + + $self->{Def}->compressedBytes(); +} + +sub uncompressedBytes +{ + my $self = shift ; + $self->{Def}->uncompressedBytes(); +} + + + + +sub crc32 +{ + my $self = shift ; + $self->{Def}->crc32(); +} + +sub adler32 +{ + my $self = shift ; + $self->{Def}->adler32(); +} + + +1; + +__END__ + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Identity.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Identity.pm new file mode 100755 index 00000000000..16f14d8e7f3 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Adapter/Identity.pm @@ -0,0 +1,101 @@ +package IO::Compress::Adapter::Identity ; + +use strict; +use warnings; +use bytes; + +use IO::Compress::Base::Common 2.024 qw(:Status); +our ($VERSION); + +$VERSION = '2.024'; + +sub mkCompObject +{ + my $level = shift ; + my $strategy = shift ; + + return bless { + 'CompSize' => 0, + 'UnCompSize' => 0, + 'Error' => '', + 'ErrorNo' => 0, + } ; +} + +sub compr +{ + my $self = shift ; + + if (defined ${ $_[0] } && length ${ $_[0] }) { + $self->{CompSize} += length ${ $_[0] } ; + $self->{UnCompSize} = $self->{CompSize} ; + + if ( ref $_[1] ) + { ${ $_[1] } .= ${ $_[0] } } + else + { $_[1] .= ${ $_[0] } } + } + + return STATUS_OK ; +} + +sub flush +{ + my $self = shift ; + + return STATUS_OK; +} + +sub close +{ + my $self = shift ; + + return STATUS_OK; +} + +sub reset +{ + my $self = shift ; + + $self->{CompSize} = 0; + $self->{UnCompSize} = 0; + + return STATUS_OK; +} + +sub deflateParams +{ + my $self = shift ; + + return STATUS_OK; +} + +#sub total_out +#{ +# my $self = shift ; +# return $self->{UnCompSize} ; +#} +# +#sub total_in +#{ +# my $self = shift ; +# return $self->{UnCompSize} ; +#} + +sub compressedBytes +{ + my $self = shift ; + return $self->{UnCompSize} ; +} + +sub uncompressedBytes +{ + my $self = shift ; + return $self->{UnCompSize} ; +} + +1; + + +__END__ + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Base.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Base.pm new file mode 100755 index 00000000000..5a20f60007b --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Base.pm @@ -0,0 +1,981 @@ + +package IO::Compress::Base ; + +require 5.004 ; + +use strict ; +use warnings; + +use IO::Compress::Base::Common 2.024 ; + +use IO::File ; +use Scalar::Util qw(blessed readonly); + +#use File::Glob; +#require Exporter ; +use Carp ; +use Symbol; +use bytes; + +our (@ISA, $VERSION); +@ISA = qw(Exporter IO::File); + +$VERSION = '2.024'; + +#Can't locate object method "SWASHNEW" via package "utf8" (perhaps you forgot to load "utf8"?) at .../ext/Compress-Zlib/Gzip/blib/lib/Compress/Zlib/Common.pm line 16. + +sub saveStatus +{ + my $self = shift ; + ${ *$self->{ErrorNo} } = shift() + 0 ; + ${ *$self->{Error} } = '' ; + + return ${ *$self->{ErrorNo} } ; +} + + +sub saveErrorString +{ + my $self = shift ; + my $retval = shift ; + ${ *$self->{Error} } = shift ; + ${ *$self->{ErrorNo} } = shift() + 0 if @_ ; + + return $retval; +} + +sub croakError +{ + my $self = shift ; + $self->saveErrorString(0, $_[0]); + croak $_[0]; +} + +sub closeError +{ + my $self = shift ; + my $retval = shift ; + + my $errno = *$self->{ErrorNo}; + my $error = ${ *$self->{Error} }; + + $self->close(); + + *$self->{ErrorNo} = $errno ; + ${ *$self->{Error} } = $error ; + + return $retval; +} + + + +sub error +{ + my $self = shift ; + return ${ *$self->{Error} } ; +} + +sub errorNo +{ + my $self = shift ; + return ${ *$self->{ErrorNo} } ; +} + + +sub writeAt +{ + my $self = shift ; + my $offset = shift; + my $data = shift; + + if (defined *$self->{FH}) { + my $here = tell(*$self->{FH}); + return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) + if $here < 0 ; + seek(*$self->{FH}, $offset, SEEK_SET) + or return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ; + defined *$self->{FH}->write($data, length $data) + or return $self->saveErrorString(undef, $!, $!) ; + seek(*$self->{FH}, $here, SEEK_SET) + or return $self->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ; + } + else { + substr(${ *$self->{Buffer} }, $offset, length($data)) = $data ; + } + + return 1; +} + +sub output +{ + my $self = shift ; + my $data = shift ; + my $last = shift ; + + return 1 + if length $data == 0 && ! $last ; + + if ( *$self->{FilterEnvelope} ) { + *_ = \$data; + &{ *$self->{FilterEnvelope} }(); + } + + if (length $data) { + if ( defined *$self->{FH} ) { + defined *$self->{FH}->write( $data, length $data ) + or return $self->saveErrorString(0, $!, $!); + } + else { + ${ *$self->{Buffer} } .= $data ; + } + } + + return 1; +} + +sub getOneShotParams +{ + return ( 'MultiStream' => [1, 1, Parse_boolean, 1], + ); +} + +sub checkParams +{ + my $self = shift ; + my $class = shift ; + + my $got = shift || IO::Compress::Base::Parameters::new(); + + $got->parse( + { + # Generic Parameters + 'AutoClose' => [1, 1, Parse_boolean, 0], + #'Encode' => [1, 1, Parse_any, undef], + 'Strict' => [0, 1, Parse_boolean, 1], + 'Append' => [1, 1, Parse_boolean, 0], + 'BinModeIn' => [1, 1, Parse_boolean, 0], + + 'FilterEnvelope' => [1, 1, Parse_any, undef], + + $self->getExtraParams(), + *$self->{OneShot} ? $self->getOneShotParams() + : (), + }, + @_) or $self->croakError("${class}: $got->{Error}") ; + + return $got ; +} + +sub _create +{ + my $obj = shift; + my $got = shift; + + *$obj->{Closed} = 1 ; + + my $class = ref $obj; + $obj->croakError("$class: Missing Output parameter") + if ! @_ && ! $got ; + + my $outValue = shift ; + my $oneShot = 1 ; + + if (! $got) + { + $oneShot = 0 ; + $got = $obj->checkParams($class, undef, @_) + or return undef ; + } + + my $lax = ! $got->value('Strict') ; + + my $outType = whatIsOutput($outValue); + + $obj->ckOutputParam($class, $outValue) + or return undef ; + + if ($outType eq 'buffer') { + *$obj->{Buffer} = $outValue; + } + else { + my $buff = "" ; + *$obj->{Buffer} = \$buff ; + } + + # Merge implies Append + my $merge = $got->value('Merge') ; + my $appendOutput = $got->value('Append') || $merge ; + *$obj->{Append} = $appendOutput; + *$obj->{FilterEnvelope} = $got->value('FilterEnvelope') ; + + if ($merge) + { + # Switch off Merge mode if output file/buffer is empty/doesn't exist + if (($outType eq 'buffer' && length $$outValue == 0 ) || + ($outType ne 'buffer' && (! -e $outValue || (-w _ && -z _))) ) + { $merge = 0 } + } + + # If output is a file, check that it is writable + #no warnings; + #if ($outType eq 'filename' && -e $outValue && ! -w _) + # { return $obj->saveErrorString(undef, "Output file '$outValue' is not writable" ) } + + + + if ($got->parsed('Encode')) { + my $want_encoding = $got->value('Encode'); + *$obj->{Encoding} = getEncoding($obj, $class, $want_encoding); + } + + $obj->ckParams($got) + or $obj->croakError("${class}: " . $obj->error()); + + + $obj->saveStatus(STATUS_OK) ; + + my $status ; + if (! $merge) + { + *$obj->{Compress} = $obj->mkComp($got) + or return undef; + + *$obj->{UnCompSize} = new U64 ; + *$obj->{CompSize} = new U64 ; + + if ( $outType eq 'buffer') { + ${ *$obj->{Buffer} } = '' + unless $appendOutput ; + } + else { + if ($outType eq 'handle') { + *$obj->{FH} = $outValue ; + setBinModeOutput(*$obj->{FH}) ; + $outValue->flush() ; + *$obj->{Handle} = 1 ; + if ($appendOutput) + { + seek(*$obj->{FH}, 0, SEEK_END) + or return $obj->saveErrorString(undef, "Cannot seek to end of output filehandle: $!", $!) ; + + } + } + elsif ($outType eq 'filename') { + no warnings; + my $mode = '>' ; + $mode = '>>' + if $appendOutput; + *$obj->{FH} = new IO::File "$mode $outValue" + or return $obj->saveErrorString(undef, "cannot open file '$outValue': $!", $!) ; + *$obj->{StdIO} = ($outValue eq '-'); + setBinModeOutput(*$obj->{FH}) ; + } + } + + *$obj->{Header} = $obj->mkHeader($got) ; + $obj->output( *$obj->{Header} ) + or return undef; + } + else + { + *$obj->{Compress} = $obj->createMerge($outValue, $outType) + or return undef; + } + + *$obj->{Closed} = 0 ; + *$obj->{AutoClose} = $got->value('AutoClose') ; + *$obj->{Output} = $outValue; + *$obj->{ClassName} = $class; + *$obj->{Got} = $got; + *$obj->{OneShot} = 0 ; + + return $obj ; +} + +sub ckOutputParam +{ + my $self = shift ; + my $from = shift ; + my $outType = whatIsOutput($_[0]); + + $self->croakError("$from: output parameter not a filename, filehandle or scalar ref") + if ! $outType ; + + #$self->croakError("$from: output filename is undef or null string") + #if $outType eq 'filename' && (! defined $_[0] || $_[0] eq '') ; + + $self->croakError("$from: output buffer is read-only") + if $outType eq 'buffer' && readonly(${ $_[0] }); + + return 1; +} + + +sub _def +{ + my $obj = shift ; + + my $class= (caller)[0] ; + my $name = (caller(1))[3] ; + + $obj->croakError("$name: expected at least 1 parameters\n") + unless @_ >= 1 ; + + my $input = shift ; + my $haveOut = @_ ; + my $output = shift ; + + my $x = new IO::Compress::Base::Validator($class, *$obj->{Error}, $name, $input, $output) + or return undef ; + + push @_, $output if $haveOut && $x->{Hash}; + + *$obj->{OneShot} = 1 ; + + my $got = $obj->checkParams($name, undef, @_) + or return undef ; + + $x->{Got} = $got ; + +# if ($x->{Hash}) +# { +# while (my($k, $v) = each %$input) +# { +# $v = \$input->{$k} +# unless defined $v ; +# +# $obj->_singleTarget($x, 1, $k, $v, @_) +# or return undef ; +# } +# +# return keys %$input ; +# } + + if ($x->{GlobMap}) + { + $x->{oneInput} = 1 ; + foreach my $pair (@{ $x->{Pairs} }) + { + my ($from, $to) = @$pair ; + $obj->_singleTarget($x, 1, $from, $to, @_) + or return undef ; + } + + return scalar @{ $x->{Pairs} } ; + } + + if (! $x->{oneOutput} ) + { + my $inFile = ($x->{inType} eq 'filenames' + || $x->{inType} eq 'filename'); + + $x->{inType} = $inFile ? 'filename' : 'buffer'; + + foreach my $in ($x->{oneInput} ? $input : @$input) + { + my $out ; + $x->{oneInput} = 1 ; + + $obj->_singleTarget($x, $inFile, $in, \$out, @_) + or return undef ; + + push @$output, \$out ; + #if ($x->{outType} eq 'array') + # { push @$output, \$out } + #else + # { $output->{$in} = \$out } + } + + return 1 ; + } + + # finally the 1 to 1 and n to 1 + return $obj->_singleTarget($x, 1, $input, $output, @_); + + croak "should not be here" ; +} + +sub _singleTarget +{ + my $obj = shift ; + my $x = shift ; + my $inputIsFilename = shift; + my $input = shift; + + if ($x->{oneInput}) + { + $obj->getFileInfo($x->{Got}, $input) + if isaFilename($input) and $inputIsFilename ; + + my $z = $obj->_create($x->{Got}, @_) + or return undef ; + + + defined $z->_wr2($input, $inputIsFilename) + or return $z->closeError(undef) ; + + return $z->close() ; + } + else + { + my $afterFirst = 0 ; + my $inputIsFilename = ($x->{inType} ne 'array'); + my $keep = $x->{Got}->clone(); + + #for my $element ( ($x->{inType} eq 'hash') ? keys %$input : @$input) + for my $element ( @$input) + { + my $isFilename = isaFilename($element); + + if ( $afterFirst ++ ) + { + defined addInterStream($obj, $element, $isFilename) + or return $obj->closeError(undef) ; + } + else + { + $obj->getFileInfo($x->{Got}, $element) + if $isFilename; + + $obj->_create($x->{Got}, @_) + or return undef ; + } + + defined $obj->_wr2($element, $isFilename) + or return $obj->closeError(undef) ; + + *$obj->{Got} = $keep->clone(); + } + return $obj->close() ; + } + +} + +sub _wr2 +{ + my $self = shift ; + + my $source = shift ; + my $inputIsFilename = shift; + + my $input = $source ; + if (! $inputIsFilename) + { + $input = \$source + if ! ref $source; + } + + if ( ref $input && ref $input eq 'SCALAR' ) + { + return $self->syswrite($input, @_) ; + } + + if ( ! ref $input || isaFilehandle($input)) + { + my $isFilehandle = isaFilehandle($input) ; + + my $fh = $input ; + + if ( ! $isFilehandle ) + { + $fh = new IO::File "<$input" + or return $self->saveErrorString(undef, "cannot open file '$input': $!", $!) ; + } + binmode $fh if *$self->{Got}->valueOrDefault('BinModeIn') ; + + my $status ; + my $buff ; + my $count = 0 ; + while ($status = read($fh, $buff, 16 * 1024)) { + $count += length $buff; + defined $self->syswrite($buff, @_) + or return undef ; + } + + return $self->saveErrorString(undef, $!, $!) + if ! defined $status ; + + if ( (!$isFilehandle || *$self->{AutoClose}) && $input ne '-') + { + $fh->close() + or return undef ; + } + + return $count ; + } + + croak "Should not be here"; + return undef; +} + +sub addInterStream +{ + my $self = shift ; + my $input = shift ; + my $inputIsFilename = shift ; + + if (*$self->{Got}->value('MultiStream')) + { + $self->getFileInfo(*$self->{Got}, $input) + #if isaFilename($input) and $inputIsFilename ; + if isaFilename($input) ; + + # TODO -- newStream needs to allow gzip/zip header to be modified + return $self->newStream(); + } + elsif (*$self->{Got}->value('AutoFlush')) + { + #return $self->flush(Z_FULL_FLUSH); + } + + return 1 ; +} + +sub getFileInfo +{ +} + +sub TIEHANDLE +{ + return $_[0] if ref($_[0]); + die "OOPS\n" ; +} + +sub UNTIE +{ + my $self = shift ; +} + +sub DESTROY +{ + my $self = shift ; + local ($., $@, $!, $^E, $?); + + $self->close() ; + + # TODO - memory leak with 5.8.0 - this isn't called until + # global destruction + # + %{ *$self } = () ; + undef $self ; +} + + + +sub filterUncompressed +{ +} + +sub syswrite +{ + my $self = shift ; + + my $buffer ; + if (ref $_[0] ) { + $self->croakError( *$self->{ClassName} . "::write: not a scalar reference" ) + unless ref $_[0] eq 'SCALAR' ; + $buffer = $_[0] ; + } + else { + $buffer = \$_[0] ; + } + + $] >= 5.008 and ( utf8::downgrade($$buffer, 1) + or croak "Wide character in " . *$self->{ClassName} . "::write:"); + + + if (@_ > 1) { + my $slen = defined $$buffer ? length($$buffer) : 0; + my $len = $slen; + my $offset = 0; + $len = $_[1] if $_[1] < $len; + + if (@_ > 2) { + $offset = $_[2] || 0; + $self->croakError(*$self->{ClassName} . "::write: offset outside string") + if $offset > $slen; + if ($offset < 0) { + $offset += $slen; + $self->croakError( *$self->{ClassName} . "::write: offset outside string") if $offset < 0; + } + my $rem = $slen - $offset; + $len = $rem if $rem < $len; + } + + $buffer = \substr($$buffer, $offset, $len) ; + } + + return 0 if ! defined $$buffer || length $$buffer == 0 ; + + if (*$self->{Encoding}) { + $$buffer = *$self->{Encoding}->encode($$buffer); + } + + $self->filterUncompressed($buffer); + + my $buffer_length = defined $$buffer ? length($$buffer) : 0 ; + *$self->{UnCompSize}->add($buffer_length) ; + + my $outBuffer=''; + my $status = *$self->{Compress}->compr($buffer, $outBuffer) ; + + return $self->saveErrorString(undef, *$self->{Compress}{Error}, + *$self->{Compress}{ErrorNo}) + if $status == STATUS_ERROR; + + *$self->{CompSize}->add(length $outBuffer) ; + + $self->output($outBuffer) + or return undef; + + return $buffer_length; +} + +sub print +{ + my $self = shift; + + #if (ref $self) { + # $self = *$self{GLOB} ; + #} + + if (defined $\) { + if (defined $,) { + defined $self->syswrite(join($,, @_) . $\); + } else { + defined $self->syswrite(join("", @_) . $\); + } + } else { + if (defined $,) { + defined $self->syswrite(join($,, @_)); + } else { + defined $self->syswrite(join("", @_)); + } + } +} + +sub printf +{ + my $self = shift; + my $fmt = shift; + defined $self->syswrite(sprintf($fmt, @_)); +} + + + +sub flush +{ + my $self = shift ; + + my $outBuffer=''; + my $status = *$self->{Compress}->flush($outBuffer, @_) ; + return $self->saveErrorString(0, *$self->{Compress}{Error}, + *$self->{Compress}{ErrorNo}) + if $status == STATUS_ERROR; + + if ( defined *$self->{FH} ) { + *$self->{FH}->clearerr(); + } + + *$self->{CompSize}->add(length $outBuffer) ; + + $self->output($outBuffer) + or return 0; + + if ( defined *$self->{FH} ) { + defined *$self->{FH}->flush() + or return $self->saveErrorString(0, $!, $!); + } + + return 1; +} + +sub newStream +{ + my $self = shift ; + + $self->_writeTrailer() + or return 0 ; + + my $got = $self->checkParams('newStream', *$self->{Got}, @_) + or return 0 ; + + $self->ckParams($got) + or $self->croakError("newStream: $self->{Error}"); + + *$self->{Compress} = $self->mkComp($got) + or return 0; + + *$self->{Header} = $self->mkHeader($got) ; + $self->output(*$self->{Header} ) + or return 0; + + *$self->{UnCompSize}->reset(); + *$self->{CompSize}->reset(); + + return 1 ; +} + +sub reset +{ + my $self = shift ; + return *$self->{Compress}->reset() ; +} + +sub _writeTrailer +{ + my $self = shift ; + + my $trailer = ''; + + my $status = *$self->{Compress}->close($trailer) ; + return $self->saveErrorString(0, *$self->{Compress}{Error}, *$self->{Compress}{ErrorNo}) + if $status == STATUS_ERROR; + + *$self->{CompSize}->add(length $trailer) ; + + $trailer .= $self->mkTrailer(); + defined $trailer + or return 0; + + return $self->output($trailer); +} + +sub _writeFinalTrailer +{ + my $self = shift ; + + return $self->output($self->mkFinalTrailer()); +} + +sub close +{ + my $self = shift ; + + return 1 if *$self->{Closed} || ! *$self->{Compress} ; + *$self->{Closed} = 1 ; + + untie *$self + if $] >= 5.008 ; + + $self->_writeTrailer() + or return 0 ; + + $self->_writeFinalTrailer() + or return 0 ; + + $self->output( "", 1 ) + or return 0; + + if (defined *$self->{FH}) { + + #if (! *$self->{Handle} || *$self->{AutoClose}) { + if ((! *$self->{Handle} || *$self->{AutoClose}) && ! *$self->{StdIO}) { + $! = 0 ; + *$self->{FH}->close() + or return $self->saveErrorString(0, $!, $!); + } + delete *$self->{FH} ; + # This delete can set $! in older Perls, so reset the errno + $! = 0 ; + } + + return 1; +} + + +#sub total_in +#sub total_out +#sub msg +# +#sub crc +#{ +# my $self = shift ; +# return *$self->{Compress}->crc32() ; +#} +# +#sub msg +#{ +# my $self = shift ; +# return *$self->{Compress}->msg() ; +#} +# +#sub dict_adler +#{ +# my $self = shift ; +# return *$self->{Compress}->dict_adler() ; +#} +# +#sub get_Level +#{ +# my $self = shift ; +# return *$self->{Compress}->get_Level() ; +#} +# +#sub get_Strategy +#{ +# my $self = shift ; +# return *$self->{Compress}->get_Strategy() ; +#} + + +sub tell +{ + my $self = shift ; + + return *$self->{UnCompSize}->get32bit() ; +} + +sub eof +{ + my $self = shift ; + + return *$self->{Closed} ; +} + + +sub seek +{ + my $self = shift ; + my $position = shift; + my $whence = shift ; + + my $here = $self->tell() ; + my $target = 0 ; + + #use IO::Handle qw(SEEK_SET SEEK_CUR SEEK_END); + use IO::Handle ; + + if ($whence == IO::Handle::SEEK_SET) { + $target = $position ; + } + elsif ($whence == IO::Handle::SEEK_CUR || $whence == IO::Handle::SEEK_END) { + $target = $here + $position ; + } + else { + $self->croakError(*$self->{ClassName} . "::seek: unknown value, $whence, for whence parameter"); + } + + # short circuit if seeking to current offset + return 1 if $target == $here ; + + # Outlaw any attempt to seek backwards + $self->croakError(*$self->{ClassName} . "::seek: cannot seek backwards") + if $target < $here ; + + # Walk the file to the new offset + my $offset = $target - $here ; + + my $buffer ; + defined $self->syswrite("\x00" x $offset) + or return 0; + + return 1 ; +} + +sub binmode +{ + 1; +# my $self = shift ; +# return defined *$self->{FH} +# ? binmode *$self->{FH} +# : 1 ; +} + +sub fileno +{ + my $self = shift ; + return defined *$self->{FH} + ? *$self->{FH}->fileno() + : undef ; +} + +sub opened +{ + my $self = shift ; + return ! *$self->{Closed} ; +} + +sub autoflush +{ + my $self = shift ; + return defined *$self->{FH} + ? *$self->{FH}->autoflush(@_) + : undef ; +} + +sub input_line_number +{ + return undef ; +} + + +sub _notAvailable +{ + my $name = shift ; + return sub { croak "$name Not Available: File opened only for output" ; } ; +} + +*read = _notAvailable('read'); +*READ = _notAvailable('read'); +*readline = _notAvailable('readline'); +*READLINE = _notAvailable('readline'); +*getc = _notAvailable('getc'); +*GETC = _notAvailable('getc'); + +*FILENO = \&fileno; +*PRINT = \&print; +*PRINTF = \&printf; +*WRITE = \&syswrite; +*write = \&syswrite; +*SEEK = \&seek; +*TELL = \&tell; +*EOF = \&eof; +*CLOSE = \&close; +*BINMODE = \&binmode; + +#*sysread = \&_notAvailable; +#*syswrite = \&_write; + +1; + +__END__ + +=head1 NAME + +IO::Compress::Base - Base Class for IO::Compress modules + +=head1 SYNOPSIS + + use IO::Compress::Base ; + +=head1 DESCRIPTION + +This module is not intended for direct use in application code. Its sole +purpose if to to be sub-classed by IO::Compress modules. + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2010 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Base/Common.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Base/Common.pm new file mode 100755 index 00000000000..4f8b4dadc36 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Base/Common.pm @@ -0,0 +1,956 @@ +package IO::Compress::Base::Common; + +use strict ; +use warnings; +use bytes; + +use Carp; +use Scalar::Util qw(blessed readonly); +use File::GlobMapper; + +require Exporter; +our ($VERSION, @ISA, @EXPORT, %EXPORT_TAGS, $HAS_ENCODE); +@ISA = qw(Exporter); +$VERSION = '2.024'; + +@EXPORT = qw( isaFilehandle isaFilename whatIsInput whatIsOutput + isaFileGlobString cleanFileGlobString oneTarget + setBinModeInput setBinModeOutput + ckInOutParams + createSelfTiedObject + getEncoding + + WANT_CODE + WANT_EXT + WANT_UNDEF + WANT_HASH + + STATUS_OK + STATUS_ENDSTREAM + STATUS_EOF + STATUS_ERROR + ); + +%EXPORT_TAGS = ( Status => [qw( STATUS_OK + STATUS_ENDSTREAM + STATUS_EOF + STATUS_ERROR + )]); + + +use constant STATUS_OK => 0; +use constant STATUS_ENDSTREAM => 1; +use constant STATUS_EOF => 2; +use constant STATUS_ERROR => -1; + +sub hasEncode() +{ + if (! defined $HAS_ENCODE) { + eval + { + require Encode; + Encode->import(); + }; + + $HAS_ENCODE = $@ ? 0 : 1 ; + } + + return $HAS_ENCODE; +} + +sub getEncoding($$$) +{ + my $obj = shift; + my $class = shift ; + my $want_encoding = shift ; + + $obj->croakError("$class: Encode module needed to use -Encode") + if ! hasEncode(); + + my $encoding = Encode::find_encoding($want_encoding); + + $obj->croakError("$class: Encoding '$want_encoding' is not available") + if ! $encoding; + + return $encoding; +} + +our ($needBinmode); +$needBinmode = ($^O eq 'MSWin32' || + ($] >= 5.006 && eval ' ${^UNICODE} || ${^UTF8LOCALE} ')) + ? 1 : 1 ; + +sub setBinModeInput($) +{ + my $handle = shift ; + + binmode $handle + if $needBinmode; +} + +sub setBinModeOutput($) +{ + my $handle = shift ; + + binmode $handle + if $needBinmode; +} + +sub isaFilehandle($) +{ + use utf8; # Pragma needed to keep Perl 5.6.0 happy + return (defined $_[0] and + (UNIVERSAL::isa($_[0],'GLOB') or + UNIVERSAL::isa($_[0],'IO::Handle') or + UNIVERSAL::isa(\$_[0],'GLOB')) + ) +} + +sub isaFilename($) +{ + return (defined $_[0] and + ! ref $_[0] and + UNIVERSAL::isa(\$_[0], 'SCALAR')); +} + +sub isaFileGlobString +{ + return defined $_[0] && $_[0] =~ /^<.*>$/; +} + +sub cleanFileGlobString +{ + my $string = shift ; + + $string =~ s/^\s*<\s*(.*)\s*>\s*$/$1/; + + return $string; +} + +use constant WANT_CODE => 1 ; +use constant WANT_EXT => 2 ; +use constant WANT_UNDEF => 4 ; +#use constant WANT_HASH => 8 ; +use constant WANT_HASH => 0 ; + +sub whatIsInput($;$) +{ + my $got = whatIs(@_); + + if (defined $got && $got eq 'filename' && defined $_[0] && $_[0] eq '-') + { + #use IO::File; + $got = 'handle'; + $_[0] = *STDIN; + #$_[0] = new IO::File("<-"); + } + + return $got; +} + +sub whatIsOutput($;$) +{ + my $got = whatIs(@_); + + if (defined $got && $got eq 'filename' && defined $_[0] && $_[0] eq '-') + { + $got = 'handle'; + $_[0] = *STDOUT; + #$_[0] = new IO::File(">-"); + } + + return $got; +} + +sub whatIs ($;$) +{ + return 'handle' if isaFilehandle($_[0]); + + my $wantCode = defined $_[1] && $_[1] & WANT_CODE ; + my $extended = defined $_[1] && $_[1] & WANT_EXT ; + my $undef = defined $_[1] && $_[1] & WANT_UNDEF ; + my $hash = defined $_[1] && $_[1] & WANT_HASH ; + + return 'undef' if ! defined $_[0] && $undef ; + + if (ref $_[0]) { + return '' if blessed($_[0]); # is an object + #return '' if UNIVERSAL::isa($_[0], 'UNIVERSAL'); # is an object + return 'buffer' if UNIVERSAL::isa($_[0], 'SCALAR'); + return 'array' if UNIVERSAL::isa($_[0], 'ARRAY') && $extended ; + return 'hash' if UNIVERSAL::isa($_[0], 'HASH') && $hash ; + return 'code' if UNIVERSAL::isa($_[0], 'CODE') && $wantCode ; + return ''; + } + + return 'fileglob' if $extended && isaFileGlobString($_[0]); + return 'filename'; +} + +sub oneTarget +{ + return $_[0] =~ /^(code|handle|buffer|filename)$/; +} + +sub IO::Compress::Base::Validator::new +{ + my $class = shift ; + + my $Class = shift ; + my $error_ref = shift ; + my $reportClass = shift ; + + my %data = (Class => $Class, + Error => $error_ref, + reportClass => $reportClass, + ) ; + + my $obj = bless \%data, $class ; + + local $Carp::CarpLevel = 1; + + my $inType = $data{inType} = whatIsInput($_[0], WANT_EXT|WANT_HASH); + my $outType = $data{outType} = whatIsOutput($_[1], WANT_EXT|WANT_HASH); + + my $oneInput = $data{oneInput} = oneTarget($inType); + my $oneOutput = $data{oneOutput} = oneTarget($outType); + + if (! $inType) + { + $obj->croakError("$reportClass: illegal input parameter") ; + #return undef ; + } + +# if ($inType eq 'hash') +# { +# $obj->{Hash} = 1 ; +# $obj->{oneInput} = 1 ; +# return $obj->validateHash($_[0]); +# } + + if (! $outType) + { + $obj->croakError("$reportClass: illegal output parameter") ; + #return undef ; + } + + + if ($inType ne 'fileglob' && $outType eq 'fileglob') + { + $obj->croakError("Need input fileglob for outout fileglob"); + } + +# if ($inType ne 'fileglob' && $outType eq 'hash' && $inType ne 'filename' ) +# { +# $obj->croakError("input must ne filename or fileglob when output is a hash"); +# } + + if ($inType eq 'fileglob' && $outType eq 'fileglob') + { + $data{GlobMap} = 1 ; + $data{inType} = $data{outType} = 'filename'; + my $mapper = new File::GlobMapper($_[0], $_[1]); + if ( ! $mapper ) + { + return $obj->saveErrorString($File::GlobMapper::Error) ; + } + $data{Pairs} = $mapper->getFileMap(); + + return $obj; + } + + $obj->croakError("$reportClass: input and output $inType are identical") + if $inType eq $outType && $_[0] eq $_[1] && $_[0] ne '-' ; + + if ($inType eq 'fileglob') # && $outType ne 'fileglob' + { + my $glob = cleanFileGlobString($_[0]); + my @inputs = glob($glob); + + if (@inputs == 0) + { + # TODO -- legal or die? + die "globmap matched zero file -- legal or die???" ; + } + elsif (@inputs == 1) + { + $obj->validateInputFilenames($inputs[0]) + or return undef; + $_[0] = $inputs[0] ; + $data{inType} = 'filename' ; + $data{oneInput} = 1; + } + else + { + $obj->validateInputFilenames(@inputs) + or return undef; + $_[0] = [ @inputs ] ; + $data{inType} = 'filenames' ; + } + } + elsif ($inType eq 'filename') + { + $obj->validateInputFilenames($_[0]) + or return undef; + } + elsif ($inType eq 'array') + { + $data{inType} = 'filenames' ; + $obj->validateInputArray($_[0]) + or return undef ; + } + + return $obj->saveErrorString("$reportClass: output buffer is read-only") + if $outType eq 'buffer' && readonly(${ $_[1] }); + + if ($outType eq 'filename' ) + { + $obj->croakError("$reportClass: output filename is undef or null string") + if ! defined $_[1] || $_[1] eq '' ; + + if (-e $_[1]) + { + if (-d _ ) + { + return $obj->saveErrorString("output file '$_[1]' is a directory"); + } + } + } + + return $obj ; +} + +sub IO::Compress::Base::Validator::saveErrorString +{ + my $self = shift ; + ${ $self->{Error} } = shift ; + return undef; + +} + +sub IO::Compress::Base::Validator::croakError +{ + my $self = shift ; + $self->saveErrorString($_[0]); + croak $_[0]; +} + + + +sub IO::Compress::Base::Validator::validateInputFilenames +{ + my $self = shift ; + + foreach my $filename (@_) + { + $self->croakError("$self->{reportClass}: input filename is undef or null string") + if ! defined $filename || $filename eq '' ; + + next if $filename eq '-'; + + if (! -e $filename ) + { + return $self->saveErrorString("input file '$filename' does not exist"); + } + + if (-d _ ) + { + return $self->saveErrorString("input file '$filename' is a directory"); + } + + if (! -r _ ) + { + return $self->saveErrorString("cannot open file '$filename': $!"); + } + } + + return 1 ; +} + +sub IO::Compress::Base::Validator::validateInputArray +{ + my $self = shift ; + + if ( @{ $_[0] } == 0 ) + { + return $self->saveErrorString("empty array reference") ; + } + + foreach my $element ( @{ $_[0] } ) + { + my $inType = whatIsInput($element); + + if (! $inType) + { + $self->croakError("unknown input parameter") ; + } + elsif($inType eq 'filename') + { + $self->validateInputFilenames($element) + or return undef ; + } + else + { + $self->croakError("not a filename") ; + } + } + + return 1 ; +} + +#sub IO::Compress::Base::Validator::validateHash +#{ +# my $self = shift ; +# my $href = shift ; +# +# while (my($k, $v) = each %$href) +# { +# my $ktype = whatIsInput($k); +# my $vtype = whatIsOutput($v, WANT_EXT|WANT_UNDEF) ; +# +# if ($ktype ne 'filename') +# { +# return $self->saveErrorString("hash key not filename") ; +# } +# +# my %valid = map { $_ => 1 } qw(filename buffer array undef handle) ; +# if (! $valid{$vtype}) +# { +# return $self->saveErrorString("hash value not ok") ; +# } +# } +# +# return $self ; +#} + +sub createSelfTiedObject +{ + my $class = shift || (caller)[0] ; + my $error_ref = shift ; + + my $obj = bless Symbol::gensym(), ref($class) || $class; + tie *$obj, $obj if $] >= 5.005; + *$obj->{Closed} = 1 ; + $$error_ref = ''; + *$obj->{Error} = $error_ref ; + my $errno = 0 ; + *$obj->{ErrorNo} = \$errno ; + + return $obj; +} + + + +#package Parse::Parameters ; +# +# +#require Exporter; +#our ($VERSION, @ISA, @EXPORT); +#$VERSION = '2.000_08'; +#@ISA = qw(Exporter); + +$EXPORT_TAGS{Parse} = [qw( ParseParameters + Parse_any Parse_unsigned Parse_signed + Parse_boolean Parse_custom Parse_string + Parse_multiple Parse_writable_scalar + ) + ]; + +push @EXPORT, @{ $EXPORT_TAGS{Parse} } ; + +use constant Parse_any => 0x01; +use constant Parse_unsigned => 0x02; +use constant Parse_signed => 0x04; +use constant Parse_boolean => 0x08; +use constant Parse_string => 0x10; +use constant Parse_custom => 0x12; + +#use constant Parse_store_ref => 0x100 ; +use constant Parse_multiple => 0x100 ; +use constant Parse_writable => 0x200 ; +use constant Parse_writable_scalar => 0x400 | Parse_writable ; + +use constant OFF_PARSED => 0 ; +use constant OFF_TYPE => 1 ; +use constant OFF_DEFAULT => 2 ; +use constant OFF_FIXED => 3 ; +use constant OFF_FIRST_ONLY => 4 ; +use constant OFF_STICKY => 5 ; + + + +sub ParseParameters +{ + my $level = shift || 0 ; + + my $sub = (caller($level + 1))[3] ; + local $Carp::CarpLevel = 1 ; + + return $_[1] + if @_ == 2 && defined $_[1] && UNIVERSAL::isa($_[1], "IO::Compress::Base::Parameters"); + + my $p = new IO::Compress::Base::Parameters() ; + $p->parse(@_) + or croak "$sub: $p->{Error}" ; + + return $p; +} + +#package IO::Compress::Base::Parameters; + +use strict; +use warnings; +use Carp; + +sub IO::Compress::Base::Parameters::new +{ + my $class = shift ; + + my $obj = { Error => '', + Got => {}, + } ; + + #return bless $obj, ref($class) || $class || __PACKAGE__ ; + return bless $obj, 'IO::Compress::Base::Parameters' ; +} + +sub IO::Compress::Base::Parameters::setError +{ + my $self = shift ; + my $error = shift ; + my $retval = @_ ? shift : undef ; + + $self->{Error} = $error ; + return $retval; +} + +#sub getError +#{ +# my $self = shift ; +# return $self->{Error} ; +#} + +sub IO::Compress::Base::Parameters::parse +{ + my $self = shift ; + + my $default = shift ; + + my $got = $self->{Got} ; + my $firstTime = keys %{ $got } == 0 ; + my $other; + + my (@Bad) ; + my @entered = () ; + + # Allow the options to be passed as a hash reference or + # as the complete hash. + if (@_ == 0) { + @entered = () ; + } + elsif (@_ == 1) { + my $href = $_[0] ; + + return $self->setError("Expected even number of parameters, got 1") + if ! defined $href or ! ref $href or ref $href ne "HASH" ; + + foreach my $key (keys %$href) { + push @entered, $key ; + push @entered, \$href->{$key} ; + } + } + else { + my $count = @_; + return $self->setError("Expected even number of parameters, got $count") + if $count % 2 != 0 ; + + for my $i (0.. $count / 2 - 1) { + if ($_[2 * $i] eq '__xxx__') { + $other = $_[2 * $i + 1] ; + } + else { + push @entered, $_[2 * $i] ; + push @entered, \$_[2 * $i + 1] ; + } + } + } + + + while (my ($key, $v) = each %$default) + { + croak "need 4 params [@$v]" + if @$v != 4 ; + + my ($first_only, $sticky, $type, $value) = @$v ; + my $x ; + $self->_checkType($key, \$value, $type, 0, \$x) + or return undef ; + + $key = lc $key; + + if ($firstTime || ! $sticky) { + $x = [] + if $type & Parse_multiple; + + $got->{$key} = [0, $type, $value, $x, $first_only, $sticky] ; + } + + $got->{$key}[OFF_PARSED] = 0 ; + } + + my %parsed = (); + + if ($other) + { + for my $key (keys %$default) + { + my $canonkey = lc $key; + if ($other->parsed($canonkey)) + { + my $value = $other->value($canonkey); +#print "SET '$canonkey' to $value [$$value]\n"; + ++ $parsed{$canonkey}; + $got->{$canonkey}[OFF_PARSED] = 1; + $got->{$canonkey}[OFF_DEFAULT] = $value; + $got->{$canonkey}[OFF_FIXED] = $value; + } + } + } + + for my $i (0.. @entered / 2 - 1) { + my $key = $entered[2* $i] ; + my $value = $entered[2* $i+1] ; + + #print "Key [$key] Value [$value]" ; + #print defined $$value ? "[$$value]\n" : "[undef]\n"; + + $key =~ s/^-// ; + my $canonkey = lc $key; + + if ($got->{$canonkey} && ($firstTime || + ! $got->{$canonkey}[OFF_FIRST_ONLY] )) + { + my $type = $got->{$canonkey}[OFF_TYPE] ; + my $parsed = $parsed{$canonkey}; + ++ $parsed{$canonkey}; + + return $self->setError("Muliple instances of '$key' found") + if $parsed && $type & Parse_multiple == 0 ; + + my $s ; + $self->_checkType($key, $value, $type, 1, \$s) + or return undef ; + + $value = $$value ; + if ($type & Parse_multiple) { + $got->{$canonkey}[OFF_PARSED] = 1; + push @{ $got->{$canonkey}[OFF_FIXED] }, $s ; + } + else { + $got->{$canonkey} = [1, $type, $value, $s] ; + } + } + else + { push (@Bad, $key) } + } + + if (@Bad) { + my ($bad) = join(", ", @Bad) ; + return $self->setError("unknown key value(s) $bad") ; + } + + return 1; +} + +sub IO::Compress::Base::Parameters::_checkType +{ + my $self = shift ; + + my $key = shift ; + my $value = shift ; + my $type = shift ; + my $validate = shift ; + my $output = shift; + + #local $Carp::CarpLevel = $level ; + #print "PARSE $type $key $value $validate $sub\n" ; + + if ($type & Parse_writable_scalar) + { + return $self->setError("Parameter '$key' not writable") + if $validate && readonly $$value ; + + if (ref $$value) + { + return $self->setError("Parameter '$key' not a scalar reference") + if $validate && ref $$value ne 'SCALAR' ; + + $$output = $$value ; + } + else + { + return $self->setError("Parameter '$key' not a scalar") + if $validate && ref $value ne 'SCALAR' ; + + $$output = $value ; + } + + return 1; + } + +# if ($type & Parse_store_ref) +# { +# #$value = $$value +# # if ref ${ $value } ; +# +# $$output = $value ; +# return 1; +# } + + $value = $$value ; + + if ($type & Parse_any) + { + $$output = $value ; + return 1; + } + elsif ($type & Parse_unsigned) + { + return $self->setError("Parameter '$key' must be an unsigned int, got 'undef'") + if $validate && ! defined $value ; + return $self->setError("Parameter '$key' must be an unsigned int, got '$value'") + if $validate && $value !~ /^\d+$/; + + $$output = defined $value ? $value : 0 ; + return 1; + } + elsif ($type & Parse_signed) + { + return $self->setError("Parameter '$key' must be a signed int, got 'undef'") + if $validate && ! defined $value ; + return $self->setError("Parameter '$key' must be a signed int, got '$value'") + if $validate && $value !~ /^-?\d+$/; + + $$output = defined $value ? $value : 0 ; + return 1 ; + } + elsif ($type & Parse_boolean) + { + return $self->setError("Parameter '$key' must be an int, got '$value'") + if $validate && defined $value && $value !~ /^\d*$/; + $$output = defined $value ? $value != 0 : 0 ; + return 1; + } + elsif ($type & Parse_string) + { + $$output = defined $value ? $value : "" ; + return 1; + } + + $$output = $value ; + return 1; +} + + + +sub IO::Compress::Base::Parameters::parsed +{ + my $self = shift ; + my $name = shift ; + + return $self->{Got}{lc $name}[OFF_PARSED] ; +} + +sub IO::Compress::Base::Parameters::value +{ + my $self = shift ; + my $name = shift ; + + if (@_) + { + $self->{Got}{lc $name}[OFF_PARSED] = 1; + $self->{Got}{lc $name}[OFF_DEFAULT] = $_[0] ; + $self->{Got}{lc $name}[OFF_FIXED] = $_[0] ; + } + + return $self->{Got}{lc $name}[OFF_FIXED] ; +} + +sub IO::Compress::Base::Parameters::valueOrDefault +{ + my $self = shift ; + my $name = shift ; + my $default = shift ; + + my $value = $self->{Got}{lc $name}[OFF_DEFAULT] ; + + return $value if defined $value ; + return $default ; +} + +sub IO::Compress::Base::Parameters::wantValue +{ + my $self = shift ; + my $name = shift ; + + return defined $self->{Got}{lc $name}[OFF_DEFAULT] ; + +} + +sub IO::Compress::Base::Parameters::clone +{ + my $self = shift ; + my $obj = { }; + my %got ; + + while (my ($k, $v) = each %{ $self->{Got} }) { + $got{$k} = [ @$v ]; + } + + $obj->{Error} = $self->{Error}; + $obj->{Got} = \%got ; + + return bless $obj, 'IO::Compress::Base::Parameters' ; +} + +package U64; + +use constant MAX32 => 0xFFFFFFFF ; +use constant HI_1 => MAX32 + 1 ; +use constant LOW => 0 ; +use constant HIGH => 1; + +sub new +{ + my $class = shift ; + + my $high = 0 ; + my $low = 0 ; + + if (@_ == 2) { + $high = shift ; + $low = shift ; + } + elsif (@_ == 1) { + $low = shift ; + } + + bless [$low, $high], $class; +} + +sub newUnpack_V64 +{ + my $string = shift; + + my ($low, $hi) = unpack "V V", $string ; + bless [ $low, $hi ], "U64"; +} + +sub newUnpack_V32 +{ + my $string = shift; + + my $low = unpack "V", $string ; + bless [ $low, 0 ], "U64"; +} + +sub reset +{ + my $self = shift; + $self->[HIGH] = $self->[LOW] = 0; +} + +sub clone +{ + my $self = shift; + bless [ @$self ], ref $self ; +} + +sub getHigh +{ + my $self = shift; + return $self->[HIGH]; +} + +sub getLow +{ + my $self = shift; + return $self->[LOW]; +} + +sub get32bit +{ + my $self = shift; + return $self->[LOW]; +} + +sub get64bit +{ + my $self = shift; + # Not using << here because the result will still be + # a 32-bit value on systems where int size is 32-bits + return $self->[HIGH] * HI_1 + $self->[LOW]; +} + +sub add +{ + my $self = shift; + my $value = shift; + + if (ref $value eq 'U64') { + $self->[HIGH] += $value->[HIGH] ; + $value = $value->[LOW]; + } + + my $available = MAX32 - $self->[LOW] ; + + if ($value > $available) { + ++ $self->[HIGH] ; + $self->[LOW] = $value - $available - 1; + } + else { + $self->[LOW] += $value ; + } + +} + +sub equal +{ + my $self = shift; + my $other = shift; + + return $self->[LOW] == $other->[LOW] && + $self->[HIGH] == $other->[HIGH] ; +} + +sub is64bit +{ + my $self = shift; + return $self->[HIGH] > 0 ; +} + +sub getPacked_V64 +{ + my $self = shift; + + return pack "V V", @$self ; +} + +sub getPacked_V32 +{ + my $self = shift; + + return pack "V", $self->[LOW] ; +} + +sub pack_V64 +{ + my $low = shift; + + return pack "V V", $low, 0; +} + + +package IO::Compress::Base::Common; + +1; diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Bzip2.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Bzip2.pm new file mode 100755 index 00000000000..2a85ef55b19 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Bzip2.pm @@ -0,0 +1,758 @@ +package IO::Compress::Bzip2 ; + +use strict ; +use warnings; +use bytes; +require Exporter ; + +use IO::Compress::Base 2.024 ; + +use IO::Compress::Base::Common 2.024 qw(createSelfTiedObject); +use IO::Compress::Adapter::Bzip2 2.024 ; + + + +our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $Bzip2Error); + +$VERSION = '2.024'; +$Bzip2Error = ''; + +@ISA = qw(Exporter IO::Compress::Base); +@EXPORT_OK = qw( $Bzip2Error bzip2 ) ; +%EXPORT_TAGS = %IO::Compress::Base::EXPORT_TAGS ; +push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; +Exporter::export_ok_tags('all'); + + + +sub new +{ + my $class = shift ; + + my $obj = createSelfTiedObject($class, \$Bzip2Error); + return $obj->_create(undef, @_); +} + +sub bzip2 +{ + my $obj = createSelfTiedObject(undef, \$Bzip2Error); + $obj->_def(@_); +} + + +sub mkHeader +{ + my $self = shift ; + return ''; + +} + +sub getExtraParams +{ + my $self = shift ; + + use IO::Compress::Base::Common 2.024 qw(:Parse); + + return ( + 'BlockSize100K' => [0, 1, Parse_unsigned, 1], + 'WorkFactor' => [0, 1, Parse_unsigned, 0], + 'Verbosity' => [0, 1, Parse_boolean, 0], + ); +} + + + +sub ckParams +{ + my $self = shift ; + my $got = shift; + + # check that BlockSize100K is a number between 1 & 9 + if ($got->parsed('BlockSize100K')) { + my $value = $got->value('BlockSize100K'); + return $self->saveErrorString(undef, "Parameter 'BlockSize100K' not between 1 and 9, got $value") + unless defined $value && $value >= 1 && $value <= 9; + + } + + # check that WorkFactor between 0 & 250 + if ($got->parsed('WorkFactor')) { + my $value = $got->value('WorkFactor'); + return $self->saveErrorString(undef, "Parameter 'WorkFactor' not between 0 and 250, got $value") + unless $value >= 0 && $value <= 250; + } + + return 1 ; +} + + +sub mkComp +{ + my $self = shift ; + my $got = shift ; + + my $BlockSize100K = $got->value('BlockSize100K'); + my $WorkFactor = $got->value('WorkFactor'); + my $Verbosity = $got->value('Verbosity'); + + my ($obj, $errstr, $errno) = IO::Compress::Adapter::Bzip2::mkCompObject( + $BlockSize100K, $WorkFactor, + $Verbosity); + + return $self->saveErrorString(undef, $errstr, $errno) + if ! defined $obj; + + return $obj; +} + + +sub mkTrailer +{ + my $self = shift ; + return ''; +} + +sub mkFinalTrailer +{ + return ''; +} + +#sub newHeader +#{ +# my $self = shift ; +# return ''; +#} + +sub getInverseClass +{ + return ('IO::Uncompress::Bunzip2'); +} + +sub getFileInfo +{ + my $self = shift ; + my $params = shift; + my $file = shift ; + +} + +1; + +__END__ + +=head1 NAME + +IO::Compress::Bzip2 - Write bzip2 files/buffers + + + +=head1 SYNOPSIS + + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + my $status = bzip2 $input => $output [,OPTS] + or die "bzip2 failed: $Bzip2Error\n"; + + my $z = new IO::Compress::Bzip2 $output [,OPTS] + or die "bzip2 failed: $Bzip2Error\n"; + + $z->print($string); + $z->printf($format, $string); + $z->write($string); + $z->syswrite($string [, $length, $offset]); + $z->flush(); + $z->tell(); + $z->eof(); + $z->seek($position, $whence); + $z->binmode(); + $z->fileno(); + $z->opened(); + $z->autoflush(); + $z->input_line_number(); + $z->newStream( [OPTS] ); + + $z->close() ; + + $Bzip2Error ; + + # IO::File mode + + print $z $string; + printf $z $format, $string; + tell $z + eof $z + seek $z, $position, $whence + binmode $z + fileno $z + close $z ; + + +=head1 DESCRIPTION + +This module provides a Perl interface that allows writing bzip2 +compressed data to files or buffer. + +For reading bzip2 files/buffers, see the companion module +L<IO::Uncompress::Bunzip2|IO::Uncompress::Bunzip2>. + +=head1 Functional Interface + +A top-level function, C<bzip2>, is provided to carry out +"one-shot" compression between buffers and/or files. For finer +control over the compression process, see the L</"OO Interface"> +section. + + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + bzip2 $input => $output [,OPTS] + or die "bzip2 failed: $Bzip2Error\n"; + +The functional interface needs Perl5.005 or better. + +=head2 bzip2 $input => $output [, OPTS] + +C<bzip2> expects at least two parameters, C<$input> and C<$output>. + +=head3 The C<$input> parameter + +The parameter, C<$input>, is used to define the source of +the uncompressed data. + +It can take one of the following forms: + +=over 5 + +=item A filename + +If the C<$input> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for reading and the input data +will be read from it. + +=item A filehandle + +If the C<$input> parameter is a filehandle, the input data will be +read from it. +The string '-' can be used as an alias for standard input. + +=item A scalar reference + +If C<$input> is a scalar reference, the input data will be read +from C<$$input>. + +=item An array reference + +If C<$input> is an array reference, each element in the array must be a +filename. + +The input data will be read from each file in turn. + +The complete array will be walked to ensure that it only +contains valid filenames before any data is compressed. + +=item An Input FileGlob string + +If C<$input> is a string that is delimited by the characters "<" and ">" +C<bzip2> will assume that it is an I<input fileglob string>. The +input is the list of files that match the fileglob. + +If the fileglob does not match any files ... + +See L<File::GlobMapper|File::GlobMapper> for more details. + +=back + +If the C<$input> parameter is any other type, C<undef> will be returned. + +=head3 The C<$output> parameter + +The parameter C<$output> is used to control the destination of the +compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed +data will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data +will be written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be +stored in C<$$output>. + +=item An Array Reference + +If C<$output> is an array reference, the compressed data will be +pushed onto the array. + +=item An Output FileGlob + +If C<$output> is a string that is delimited by the characters "<" and ">" +C<bzip2> will assume that it is an I<output fileglob string>. The +output is the list of files that match the fileglob. + +When C<$output> is an fileglob string, C<$input> must also be a fileglob +string. Anything else is an error. + +=back + +If the C<$output> parameter is any other type, C<undef> will be returned. + +=head2 Notes + +When C<$input> maps to multiple files/buffers and C<$output> is a single +file/buffer the input files/buffers will be stored +in C<$output> as a concatenated series of compressed data streams. + +=head2 Optional Parameters + +Unless specified below, the optional parameters for C<bzip2>, +C<OPTS>, are the same as those used with the OO interface defined in the +L</"Constructor Options"> section below. + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option applies to any input or output data streams to +C<bzip2> that are filehandles. + +If C<AutoClose> is specified, and the value is true, it will result in all +input and/or output filehandles being closed once C<bzip2> has +completed. + +This parameter defaults to 0. + +=item C<< BinModeIn => 0|1 >> + +When reading from a file or filehandle, set C<binmode> before reading. + +Defaults to 0. + +=item C<< Append => 0|1 >> + +TODO + +=back + +=head2 Examples + +To read the contents of the file C<file1.txt> and write the compressed +data to the file C<file1.txt.bz2>. + + use strict ; + use warnings ; + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + my $input = "file1.txt"; + bzip2 $input => "$input.bz2" + or die "bzip2 failed: $Bzip2Error\n"; + +To read from an existing Perl filehandle, C<$input>, and write the +compressed data to a buffer, C<$buffer>. + + use strict ; + use warnings ; + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + use IO::File ; + + my $input = new IO::File "<file1.txt" + or die "Cannot open 'file1.txt': $!\n" ; + my $buffer ; + bzip2 $input => \$buffer + or die "bzip2 failed: $Bzip2Error\n"; + +To compress all files in the directory "/my/home" that match "*.txt" +and store the compressed data in the same directory + + use strict ; + use warnings ; + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + bzip2 '</my/home/*.txt>' => '<*.bz2>' + or die "bzip2 failed: $Bzip2Error\n"; + +and if you want to compress each file one at a time, this will do the trick + + use strict ; + use warnings ; + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + for my $input ( glob "/my/home/*.txt" ) + { + my $output = "$input.bz2" ; + bzip2 $input => $output + or die "Error compressing '$input': $Bzip2Error\n"; + } + +=head1 OO Interface + +=head2 Constructor + +The format of the constructor for C<IO::Compress::Bzip2> is shown below + + my $z = new IO::Compress::Bzip2 $output [,OPTS] + or die "IO::Compress::Bzip2 failed: $Bzip2Error\n"; + +It returns an C<IO::Compress::Bzip2> object on success and undef on failure. +The variable C<$Bzip2Error> will contain an error message on failure. + +If you are running Perl 5.005 or better the object, C<$z>, returned from +IO::Compress::Bzip2 can be used exactly like an L<IO::File|IO::File> filehandle. +This means that all normal output file operations can be carried out +with C<$z>. +For example, to write to a compressed file/buffer you can use either of +these forms + + $z->print("hello world\n"); + print $z "hello world\n"; + +The mandatory parameter C<$output> is used to control the destination +of the compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed data +will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data will be +written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be stored +in C<$$output>. + +=back + +If the C<$output> parameter is any other type, C<IO::Compress::Bzip2>::new will +return undef. + +=head2 Constructor Options + +C<OPTS> is any combination of the following options: + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option is only valid when the C<$output> parameter is a filehandle. If +specified, and the value is true, it will result in the C<$output> being +closed once either the C<close> method is called or the C<IO::Compress::Bzip2> +object is destroyed. + +This parameter defaults to 0. + +=item C<< Append => 0|1 >> + +Opens C<$output> in append mode. + +The behaviour of this option is dependent on the type of C<$output>. + +=over 5 + +=item * A Buffer + +If C<$output> is a buffer and C<Append> is enabled, all compressed data +will be append to the end if C<$output>. Otherwise C<$output> will be +cleared before any data is written to it. + +=item * A Filename + +If C<$output> is a filename and C<Append> is enabled, the file will be +opened in append mode. Otherwise the contents of the file, if any, will be +truncated before any compressed data is written to it. + +=item * A Filehandle + +If C<$output> is a filehandle, the file pointer will be positioned to the +end of the file via a call to C<seek> before any compressed data is written +to it. Otherwise the file pointer will not be moved. + +=back + +This parameter defaults to 0. + +=item C<< BlockSize100K => number >> + +Specify the number of 100K blocks bzip2 uses during compression. + +Valid values are from 1 to 9, where 9 is best compression. + +The default is 1. + +=item C<< WorkFactor => number >> + +Specifies how much effort bzip2 should take before resorting to a slower +fallback compression algorithm. + +Valid values range from 0 to 250, where 0 means use the default value 30. + +The default is 0. + +=item C<< Strict => 0|1 >> + +This is a placeholder option. + +=back + +=head2 Examples + +TODO + +=head1 Methods + +=head2 print + +Usage is + + $z->print($data) + print $z $data + +Compresses and outputs the contents of the C<$data> parameter. This +has the same behaviour as the C<print> built-in. + +Returns true if successful. + +=head2 printf + +Usage is + + $z->printf($format, $data) + printf $z $format, $data + +Compresses and outputs the contents of the C<$data> parameter. + +Returns true if successful. + +=head2 syswrite + +Usage is + + $z->syswrite $data + $z->syswrite $data, $length + $z->syswrite $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 write + +Usage is + + $z->write $data + $z->write $data, $length + $z->write $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 flush + +Usage is + + $z->flush; + +Flushes any pending compressed data to the output file/buffer. + +TODO + +Returns true on success. + +=head2 tell + +Usage is + + $z->tell() + tell $z + +Returns the uncompressed file offset. + +=head2 eof + +Usage is + + $z->eof(); + eof($z); + +Returns true if the C<close> method has been called. + +=head2 seek + + $z->seek($position, $whence); + seek($z, $position, $whence); + +Provides a sub-set of the C<seek> functionality, with the restriction +that it is only legal to seek forward in the output file/buffer. +It is a fatal error to attempt to seek backward. + +Empty parts of the file/buffer will have NULL (0x00) bytes written to them. + +The C<$whence> parameter takes one the usual values, namely SEEK_SET, +SEEK_CUR or SEEK_END. + +Returns 1 on success, 0 on failure. + +=head2 binmode + +Usage is + + $z->binmode + binmode $z ; + +This is a noop provided for completeness. + +=head2 opened + + $z->opened() + +Returns true if the object currently refers to a opened file/buffer. + +=head2 autoflush + + my $prev = $z->autoflush() + my $prev = $z->autoflush(EXPR) + +If the C<$z> object is associated with a file or a filehandle, this method +returns the current autoflush setting for the underlying filehandle. If +C<EXPR> is present, and is non-zero, it will enable flushing after every +write/print operation. + +If C<$z> is associated with a buffer, this method has no effect and always +returns C<undef>. + +B<Note> that the special variable C<$|> B<cannot> be used to set or +retrieve the autoflush setting. + +=head2 input_line_number + + $z->input_line_number() + $z->input_line_number(EXPR) + +This method always returns C<undef> when compressing. + +=head2 fileno + + $z->fileno() + fileno($z) + +If the C<$z> object is associated with a file or a filehandle, C<fileno> +will return the underlying file descriptor. Once the C<close> method is +called C<fileno> will return C<undef>. + +If the C<$z> object is is associated with a buffer, this method will return +C<undef>. + +=head2 close + + $z->close() ; + close $z ; + +Flushes any pending compressed data and then closes the output file/buffer. + +For most versions of Perl this method will be automatically invoked if +the IO::Compress::Bzip2 object is destroyed (either explicitly or by the +variable with the reference to the object going out of scope). The +exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In +these cases, the C<close> method will be called automatically, but +not until global destruction of all live objects when the program is +terminating. + +Therefore, if you want your scripts to be able to run on all versions +of Perl, you should call C<close> explicitly and not rely on automatic +closing. + +Returns true on success, otherwise 0. + +If the C<AutoClose> option has been enabled when the IO::Compress::Bzip2 +object was created, and the object is associated with a file, the +underlying file will also be closed. + +=head2 newStream([OPTS]) + +Usage is + + $z->newStream( [OPTS] ) + +Closes the current compressed data stream and starts a new one. + +OPTS consists of any of the the options that are available when creating +the C<$z> object. + +See the L</"Constructor Options"> section for more details. + +=head1 Importing + +No symbolic constants are required by this IO::Compress::Bzip2 at present. + +=over 5 + +=item :all + +Imports C<bzip2> and C<$Bzip2Error>. +Same as doing this + + use IO::Compress::Bzip2 qw(bzip2 $Bzip2Error) ; + + + +=back + +=head1 EXAMPLES + +=head2 Apache::GZip Revisited + +See L<IO::Compress::Bzip2::FAQ|IO::Compress::Bzip2::FAQ/"Apache::GZip Revisited"> + + + +=head2 Working with Net::FTP + +See L<IO::Compress::Bzip2::FAQ|IO::Compress::Bzip2::FAQ/"Compressed files and Net::FTP"> + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +The primary site for the bzip2 program is F<http://www.bzip.org>. + +See the module L<Compress::Bzip2|Compress::Bzip2> + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2008 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Deflate.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Deflate.pm new file mode 100755 index 00000000000..0f46e59d3a4 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Deflate.pm @@ -0,0 +1,930 @@ +package IO::Compress::Deflate ; + +use strict ; +use warnings; +use bytes; + +require Exporter ; + +use IO::Compress::RawDeflate 2.024 ; + +use Compress::Raw::Zlib 2.024 ; +use IO::Compress::Zlib::Constants 2.024 ; +use IO::Compress::Base::Common 2.024 qw(createSelfTiedObject); + + +our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $DeflateError); + +$VERSION = '2.024'; +$DeflateError = ''; + +@ISA = qw(Exporter IO::Compress::RawDeflate); +@EXPORT_OK = qw( $DeflateError deflate ) ; +%EXPORT_TAGS = %IO::Compress::RawDeflate::DEFLATE_CONSTANTS ; +push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; +Exporter::export_ok_tags('all'); + + +sub new +{ + my $class = shift ; + + my $obj = createSelfTiedObject($class, \$DeflateError); + return $obj->_create(undef, @_); +} + +sub deflate +{ + my $obj = createSelfTiedObject(undef, \$DeflateError); + return $obj->_def(@_); +} + + +sub bitmask($$$$) +{ + my $into = shift ; + my $value = shift ; + my $offset = shift ; + my $mask = shift ; + + return $into | (($value & $mask) << $offset ) ; +} + +sub mkDeflateHdr($$$;$) +{ + my $method = shift ; + my $cinfo = shift; + my $level = shift; + my $fdict_adler = shift ; + + my $cmf = 0; + my $flg = 0; + my $fdict = 0; + $fdict = 1 if defined $fdict_adler; + + $cmf = bitmask($cmf, $method, ZLIB_CMF_CM_OFFSET, ZLIB_CMF_CM_BITS); + $cmf = bitmask($cmf, $cinfo, ZLIB_CMF_CINFO_OFFSET, ZLIB_CMF_CINFO_BITS); + + $flg = bitmask($flg, $fdict, ZLIB_FLG_FDICT_OFFSET, ZLIB_FLG_FDICT_BITS); + $flg = bitmask($flg, $level, ZLIB_FLG_LEVEL_OFFSET, ZLIB_FLG_LEVEL_BITS); + + my $fcheck = 31 - ($cmf * 256 + $flg) % 31 ; + $flg = bitmask($flg, $fcheck, ZLIB_FLG_FCHECK_OFFSET, ZLIB_FLG_FCHECK_BITS); + + my $hdr = pack("CC", $cmf, $flg) ; + $hdr .= pack("N", $fdict_adler) if $fdict ; + + return $hdr; +} + +sub mkHeader +{ + my $self = shift ; + my $param = shift ; + + my $level = $param->value('Level'); + my $strategy = $param->value('Strategy'); + + my $lflag ; + $level = 6 + if $level == Z_DEFAULT_COMPRESSION ; + + if (ZLIB_VERNUM >= 0x1210) + { + if ($strategy >= Z_HUFFMAN_ONLY || $level < 2) + { $lflag = ZLIB_FLG_LEVEL_FASTEST } + elsif ($level < 6) + { $lflag = ZLIB_FLG_LEVEL_FAST } + elsif ($level == 6) + { $lflag = ZLIB_FLG_LEVEL_DEFAULT } + else + { $lflag = ZLIB_FLG_LEVEL_SLOWEST } + } + else + { + $lflag = ($level - 1) >> 1 ; + $lflag = 3 if $lflag > 3 ; + } + + #my $wbits = (MAX_WBITS - 8) << 4 ; + my $wbits = 7; + mkDeflateHdr(ZLIB_CMF_CM_DEFLATED, $wbits, $lflag); +} + +sub ckParams +{ + my $self = shift ; + my $got = shift; + + $got->value('ADLER32' => 1); + return 1 ; +} + + +sub mkTrailer +{ + my $self = shift ; + return pack("N", *$self->{Compress}->adler32()) ; +} + +sub mkFinalTrailer +{ + return ''; +} + +#sub newHeader +#{ +# my $self = shift ; +# return *$self->{Header}; +#} + +sub getExtraParams +{ + my $self = shift ; + return $self->getZlibParams(), +} + +sub getInverseClass +{ + return ('IO::Uncompress::Inflate', + \$IO::Uncompress::Inflate::InflateError); +} + +sub getFileInfo +{ + my $self = shift ; + my $params = shift; + my $file = shift ; + +} + + + +1; + +__END__ + +=head1 NAME + +IO::Compress::Deflate - Write RFC 1950 files/buffers + + + +=head1 SYNOPSIS + + use IO::Compress::Deflate qw(deflate $DeflateError) ; + + my $status = deflate $input => $output [,OPTS] + or die "deflate failed: $DeflateError\n"; + + my $z = new IO::Compress::Deflate $output [,OPTS] + or die "deflate failed: $DeflateError\n"; + + $z->print($string); + $z->printf($format, $string); + $z->write($string); + $z->syswrite($string [, $length, $offset]); + $z->flush(); + $z->tell(); + $z->eof(); + $z->seek($position, $whence); + $z->binmode(); + $z->fileno(); + $z->opened(); + $z->autoflush(); + $z->input_line_number(); + $z->newStream( [OPTS] ); + + $z->deflateParams(); + + $z->close() ; + + $DeflateError ; + + # IO::File mode + + print $z $string; + printf $z $format, $string; + tell $z + eof $z + seek $z, $position, $whence + binmode $z + fileno $z + close $z ; + + +=head1 DESCRIPTION + +This module provides a Perl interface that allows writing compressed +data to files or buffer as defined in RFC 1950. + +For reading RFC 1950 files/buffers, see the companion module +L<IO::Uncompress::Inflate|IO::Uncompress::Inflate>. + +=head1 Functional Interface + +A top-level function, C<deflate>, is provided to carry out +"one-shot" compression between buffers and/or files. For finer +control over the compression process, see the L</"OO Interface"> +section. + + use IO::Compress::Deflate qw(deflate $DeflateError) ; + + deflate $input => $output [,OPTS] + or die "deflate failed: $DeflateError\n"; + +The functional interface needs Perl5.005 or better. + +=head2 deflate $input => $output [, OPTS] + +C<deflate> expects at least two parameters, C<$input> and C<$output>. + +=head3 The C<$input> parameter + +The parameter, C<$input>, is used to define the source of +the uncompressed data. + +It can take one of the following forms: + +=over 5 + +=item A filename + +If the C<$input> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for reading and the input data +will be read from it. + +=item A filehandle + +If the C<$input> parameter is a filehandle, the input data will be +read from it. +The string '-' can be used as an alias for standard input. + +=item A scalar reference + +If C<$input> is a scalar reference, the input data will be read +from C<$$input>. + +=item An array reference + +If C<$input> is an array reference, each element in the array must be a +filename. + +The input data will be read from each file in turn. + +The complete array will be walked to ensure that it only +contains valid filenames before any data is compressed. + +=item An Input FileGlob string + +If C<$input> is a string that is delimited by the characters "<" and ">" +C<deflate> will assume that it is an I<input fileglob string>. The +input is the list of files that match the fileglob. + +If the fileglob does not match any files ... + +See L<File::GlobMapper|File::GlobMapper> for more details. + +=back + +If the C<$input> parameter is any other type, C<undef> will be returned. + +=head3 The C<$output> parameter + +The parameter C<$output> is used to control the destination of the +compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed +data will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data +will be written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be +stored in C<$$output>. + +=item An Array Reference + +If C<$output> is an array reference, the compressed data will be +pushed onto the array. + +=item An Output FileGlob + +If C<$output> is a string that is delimited by the characters "<" and ">" +C<deflate> will assume that it is an I<output fileglob string>. The +output is the list of files that match the fileglob. + +When C<$output> is an fileglob string, C<$input> must also be a fileglob +string. Anything else is an error. + +=back + +If the C<$output> parameter is any other type, C<undef> will be returned. + +=head2 Notes + +When C<$input> maps to multiple files/buffers and C<$output> is a single +file/buffer the input files/buffers will be stored +in C<$output> as a concatenated series of compressed data streams. + +=head2 Optional Parameters + +Unless specified below, the optional parameters for C<deflate>, +C<OPTS>, are the same as those used with the OO interface defined in the +L</"Constructor Options"> section below. + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option applies to any input or output data streams to +C<deflate> that are filehandles. + +If C<AutoClose> is specified, and the value is true, it will result in all +input and/or output filehandles being closed once C<deflate> has +completed. + +This parameter defaults to 0. + +=item C<< BinModeIn => 0|1 >> + +When reading from a file or filehandle, set C<binmode> before reading. + +Defaults to 0. + +=item C<< Append => 0|1 >> + +The behaviour of this option is dependent on the type of output data +stream. + +=over 5 + +=item * A Buffer + +If C<Append> is enabled, all compressed data will be append to the end of +the output buffer. Otherwise the output buffer will be cleared before any +compressed data is written to it. + +=item * A Filename + +If C<Append> is enabled, the file will be opened in append mode. Otherwise +the contents of the file, if any, will be truncated before any compressed +data is written to it. + +=item * A Filehandle + +If C<Append> is enabled, the filehandle will be positioned to the end of +the file via a call to C<seek> before any compressed data is +written to it. Otherwise the file pointer will not be moved. + +=back + +When C<Append> is specified, and set to true, it will I<append> all compressed +data to the output data stream. + +So when the output is a filehandle it will carry out a seek to the eof +before writing any compressed data. If the output is a filename, it will be opened for +appending. If the output is a buffer, all compressed data will be appened to +the existing buffer. + +Conversely when C<Append> is not specified, or it is present and is set to +false, it will operate as follows. + +When the output is a filename, it will truncate the contents of the file +before writing any compressed data. If the output is a filehandle +its position will not be changed. If the output is a buffer, it will be +wiped before any compressed data is output. + +Defaults to 0. + +=back + +=head2 Examples + +To read the contents of the file C<file1.txt> and write the compressed +data to the file C<file1.txt.1950>. + + use strict ; + use warnings ; + use IO::Compress::Deflate qw(deflate $DeflateError) ; + + my $input = "file1.txt"; + deflate $input => "$input.1950" + or die "deflate failed: $DeflateError\n"; + +To read from an existing Perl filehandle, C<$input>, and write the +compressed data to a buffer, C<$buffer>. + + use strict ; + use warnings ; + use IO::Compress::Deflate qw(deflate $DeflateError) ; + use IO::File ; + + my $input = new IO::File "<file1.txt" + or die "Cannot open 'file1.txt': $!\n" ; + my $buffer ; + deflate $input => \$buffer + or die "deflate failed: $DeflateError\n"; + +To compress all files in the directory "/my/home" that match "*.txt" +and store the compressed data in the same directory + + use strict ; + use warnings ; + use IO::Compress::Deflate qw(deflate $DeflateError) ; + + deflate '</my/home/*.txt>' => '<*.1950>' + or die "deflate failed: $DeflateError\n"; + +and if you want to compress each file one at a time, this will do the trick + + use strict ; + use warnings ; + use IO::Compress::Deflate qw(deflate $DeflateError) ; + + for my $input ( glob "/my/home/*.txt" ) + { + my $output = "$input.1950" ; + deflate $input => $output + or die "Error compressing '$input': $DeflateError\n"; + } + +=head1 OO Interface + +=head2 Constructor + +The format of the constructor for C<IO::Compress::Deflate> is shown below + + my $z = new IO::Compress::Deflate $output [,OPTS] + or die "IO::Compress::Deflate failed: $DeflateError\n"; + +It returns an C<IO::Compress::Deflate> object on success and undef on failure. +The variable C<$DeflateError> will contain an error message on failure. + +If you are running Perl 5.005 or better the object, C<$z>, returned from +IO::Compress::Deflate can be used exactly like an L<IO::File|IO::File> filehandle. +This means that all normal output file operations can be carried out +with C<$z>. +For example, to write to a compressed file/buffer you can use either of +these forms + + $z->print("hello world\n"); + print $z "hello world\n"; + +The mandatory parameter C<$output> is used to control the destination +of the compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed data +will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data will be +written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be stored +in C<$$output>. + +=back + +If the C<$output> parameter is any other type, C<IO::Compress::Deflate>::new will +return undef. + +=head2 Constructor Options + +C<OPTS> is any combination of the following options: + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option is only valid when the C<$output> parameter is a filehandle. If +specified, and the value is true, it will result in the C<$output> being +closed once either the C<close> method is called or the C<IO::Compress::Deflate> +object is destroyed. + +This parameter defaults to 0. + +=item C<< Append => 0|1 >> + +Opens C<$output> in append mode. + +The behaviour of this option is dependent on the type of C<$output>. + +=over 5 + +=item * A Buffer + +If C<$output> is a buffer and C<Append> is enabled, all compressed data +will be append to the end of C<$output>. Otherwise C<$output> will be +cleared before any data is written to it. + +=item * A Filename + +If C<$output> is a filename and C<Append> is enabled, the file will be +opened in append mode. Otherwise the contents of the file, if any, will be +truncated before any compressed data is written to it. + +=item * A Filehandle + +If C<$output> is a filehandle, the file pointer will be positioned to the +end of the file via a call to C<seek> before any compressed data is written +to it. Otherwise the file pointer will not be moved. + +=back + +This parameter defaults to 0. + +=item C<< Merge => 0|1 >> + +This option is used to compress input data and append it to an existing +compressed data stream in C<$output>. The end result is a single compressed +data stream stored in C<$output>. + +It is a fatal error to attempt to use this option when C<$output> is not an +RFC 1950 data stream. + +There are a number of other limitations with the C<Merge> option: + +=over 5 + +=item 1 + +This module needs to have been built with zlib 1.2.1 or better to work. A +fatal error will be thrown if C<Merge> is used with an older version of +zlib. + +=item 2 + +If C<$output> is a file or a filehandle, it must be seekable. + +=back + +This parameter defaults to 0. + +=item -Level + +Defines the compression level used by zlib. The value should either be +a number between 0 and 9 (0 means no compression and 9 is maximum +compression), or one of the symbolic constants defined below. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +The default is Z_DEFAULT_COMPRESSION. + +Note, these constants are not imported by C<IO::Compress::Deflate> by default. + + use IO::Compress::Deflate qw(:strategy); + use IO::Compress::Deflate qw(:constants); + use IO::Compress::Deflate qw(:all); + +=item -Strategy + +Defines the strategy used to tune the compression. Use one of the symbolic +constants defined below. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + +The default is Z_DEFAULT_STRATEGY. + +=item C<< Strict => 0|1 >> + +This is a placeholder option. + +=back + +=head2 Examples + +TODO + +=head1 Methods + +=head2 print + +Usage is + + $z->print($data) + print $z $data + +Compresses and outputs the contents of the C<$data> parameter. This +has the same behaviour as the C<print> built-in. + +Returns true if successful. + +=head2 printf + +Usage is + + $z->printf($format, $data) + printf $z $format, $data + +Compresses and outputs the contents of the C<$data> parameter. + +Returns true if successful. + +=head2 syswrite + +Usage is + + $z->syswrite $data + $z->syswrite $data, $length + $z->syswrite $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 write + +Usage is + + $z->write $data + $z->write $data, $length + $z->write $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 flush + +Usage is + + $z->flush; + $z->flush($flush_type); + +Flushes any pending compressed data to the output file/buffer. + +This method takes an optional parameter, C<$flush_type>, that controls +how the flushing will be carried out. By default the C<$flush_type> +used is C<Z_FINISH>. Other valid values for C<$flush_type> are +C<Z_NO_FLUSH>, C<Z_SYNC_FLUSH>, C<Z_FULL_FLUSH> and C<Z_BLOCK>. It is +strongly recommended that you only set the C<flush_type> parameter if +you fully understand the implications of what it does - overuse of C<flush> +can seriously degrade the level of compression achieved. See the C<zlib> +documentation for details. + +Returns true on success. + +=head2 tell + +Usage is + + $z->tell() + tell $z + +Returns the uncompressed file offset. + +=head2 eof + +Usage is + + $z->eof(); + eof($z); + +Returns true if the C<close> method has been called. + +=head2 seek + + $z->seek($position, $whence); + seek($z, $position, $whence); + +Provides a sub-set of the C<seek> functionality, with the restriction +that it is only legal to seek forward in the output file/buffer. +It is a fatal error to attempt to seek backward. + +Empty parts of the file/buffer will have NULL (0x00) bytes written to them. + +The C<$whence> parameter takes one the usual values, namely SEEK_SET, +SEEK_CUR or SEEK_END. + +Returns 1 on success, 0 on failure. + +=head2 binmode + +Usage is + + $z->binmode + binmode $z ; + +This is a noop provided for completeness. + +=head2 opened + + $z->opened() + +Returns true if the object currently refers to a opened file/buffer. + +=head2 autoflush + + my $prev = $z->autoflush() + my $prev = $z->autoflush(EXPR) + +If the C<$z> object is associated with a file or a filehandle, this method +returns the current autoflush setting for the underlying filehandle. If +C<EXPR> is present, and is non-zero, it will enable flushing after every +write/print operation. + +If C<$z> is associated with a buffer, this method has no effect and always +returns C<undef>. + +B<Note> that the special variable C<$|> B<cannot> be used to set or +retrieve the autoflush setting. + +=head2 input_line_number + + $z->input_line_number() + $z->input_line_number(EXPR) + +This method always returns C<undef> when compressing. + +=head2 fileno + + $z->fileno() + fileno($z) + +If the C<$z> object is associated with a file or a filehandle, C<fileno> +will return the underlying file descriptor. Once the C<close> method is +called C<fileno> will return C<undef>. + +If the C<$z> object is is associated with a buffer, this method will return +C<undef>. + +=head2 close + + $z->close() ; + close $z ; + +Flushes any pending compressed data and then closes the output file/buffer. + +For most versions of Perl this method will be automatically invoked if +the IO::Compress::Deflate object is destroyed (either explicitly or by the +variable with the reference to the object going out of scope). The +exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In +these cases, the C<close> method will be called automatically, but +not until global destruction of all live objects when the program is +terminating. + +Therefore, if you want your scripts to be able to run on all versions +of Perl, you should call C<close> explicitly and not rely on automatic +closing. + +Returns true on success, otherwise 0. + +If the C<AutoClose> option has been enabled when the IO::Compress::Deflate +object was created, and the object is associated with a file, the +underlying file will also be closed. + +=head2 newStream([OPTS]) + +Usage is + + $z->newStream( [OPTS] ) + +Closes the current compressed data stream and starts a new one. + +OPTS consists of any of the the options that are available when creating +the C<$z> object. + +See the L</"Constructor Options"> section for more details. + +=head2 deflateParams + +Usage is + + $z->deflateParams + +TODO + +=head1 Importing + +A number of symbolic constants are required by some methods in +C<IO::Compress::Deflate>. None are imported by default. + +=over 5 + +=item :all + +Imports C<deflate>, C<$DeflateError> and all symbolic +constants that can be used by C<IO::Compress::Deflate>. Same as doing this + + use IO::Compress::Deflate qw(deflate $DeflateError :constants) ; + +=item :constants + +Import all symbolic constants. Same as doing this + + use IO::Compress::Deflate qw(:flush :level :strategy) ; + +=item :flush + +These symbolic constants are used by the C<flush> method. + + Z_NO_FLUSH + Z_PARTIAL_FLUSH + Z_SYNC_FLUSH + Z_FULL_FLUSH + Z_FINISH + Z_BLOCK + +=item :level + +These symbolic constants are used by the C<Level> option in the constructor. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +=item :strategy + +These symbolic constants are used by the C<Strategy> option in the constructor. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + + + + +=back + +=head1 EXAMPLES + +=head2 Apache::GZip Revisited + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Apache::GZip Revisited"> + + + +=head2 Working with Net::FTP + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Compressed files and Net::FTP"> + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +For RFC 1950, 1951 and 1952 see +F<http://www.faqs.org/rfcs/rfc1950.html>, +F<http://www.faqs.org/rfcs/rfc1951.html> and +F<http://www.faqs.org/rfcs/rfc1952.html> + +The I<zlib> compression library was written by Jean-loup Gailly +F<gzip@prep.ai.mit.edu> and Mark Adler F<madler@alumni.caltech.edu>. + +The primary site for the I<zlib> compression library is +F<http://www.zlib.org>. + +The primary site for gzip is F<http://www.gzip.org>. + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2010 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Gzip.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Gzip.pm new file mode 100755 index 00000000000..1978b91b283 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Gzip.pm @@ -0,0 +1,1242 @@ + +package IO::Compress::Gzip ; + +require 5.004 ; + +use strict ; +use warnings; +use bytes; + + +use IO::Compress::RawDeflate 2.024 ; + +use Compress::Raw::Zlib 2.024 ; +use IO::Compress::Base::Common 2.024 qw(:Status :Parse createSelfTiedObject); +use IO::Compress::Gzip::Constants 2.024 ; +use IO::Compress::Zlib::Extra 2.024 ; + +BEGIN +{ + if (defined &utf8::downgrade ) + { *noUTF8 = \&utf8::downgrade } + else + { *noUTF8 = sub {} } +} + +require Exporter ; + +our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $GzipError); + +$VERSION = '2.024'; +$GzipError = '' ; + +@ISA = qw(Exporter IO::Compress::RawDeflate); +@EXPORT_OK = qw( $GzipError gzip ) ; +%EXPORT_TAGS = %IO::Compress::RawDeflate::DEFLATE_CONSTANTS ; +push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; +Exporter::export_ok_tags('all'); + +sub new +{ + my $class = shift ; + + my $obj = createSelfTiedObject($class, \$GzipError); + + $obj->_create(undef, @_); +} + + +sub gzip +{ + my $obj = createSelfTiedObject(undef, \$GzipError); + return $obj->_def(@_); +} + +#sub newHeader +#{ +# my $self = shift ; +# #return GZIP_MINIMUM_HEADER ; +# return $self->mkHeader(*$self->{Got}); +#} + +sub getExtraParams +{ + my $self = shift ; + + return ( + # zlib behaviour + $self->getZlibParams(), + + # Gzip header fields + 'Minimal' => [0, 1, Parse_boolean, 0], + 'Comment' => [0, 1, Parse_any, undef], + 'Name' => [0, 1, Parse_any, undef], + 'Time' => [0, 1, Parse_any, undef], + 'TextFlag' => [0, 1, Parse_boolean, 0], + 'HeaderCRC' => [0, 1, Parse_boolean, 0], + 'OS_Code' => [0, 1, Parse_unsigned, $Compress::Raw::Zlib::gzip_os_code], + 'ExtraField'=> [0, 1, Parse_any, undef], + 'ExtraFlags'=> [0, 1, Parse_any, undef], + + ); +} + + +sub ckParams +{ + my $self = shift ; + my $got = shift ; + + # gzip always needs crc32 + $got->value('CRC32' => 1); + + return 1 + if $got->value('Merge') ; + + my $strict = $got->value('Strict') ; + + + { + if (! $got->parsed('Time') ) { + # Modification time defaults to now. + $got->value('Time' => time) ; + } + + # Check that the Name & Comment don't have embedded NULLs + # Also check that they only contain ISO 8859-1 chars. + if ($got->parsed('Name') && defined $got->value('Name')) { + my $name = $got->value('Name'); + + return $self->saveErrorString(undef, "Null Character found in Name", + Z_DATA_ERROR) + if $strict && $name =~ /\x00/ ; + + return $self->saveErrorString(undef, "Non ISO 8859-1 Character found in Name", + Z_DATA_ERROR) + if $strict && $name =~ /$GZIP_FNAME_INVALID_CHAR_RE/o ; + } + + if ($got->parsed('Comment') && defined $got->value('Comment')) { + my $comment = $got->value('Comment'); + + return $self->saveErrorString(undef, "Null Character found in Comment", + Z_DATA_ERROR) + if $strict && $comment =~ /\x00/ ; + + return $self->saveErrorString(undef, "Non ISO 8859-1 Character found in Comment", + Z_DATA_ERROR) + if $strict && $comment =~ /$GZIP_FCOMMENT_INVALID_CHAR_RE/o; + } + + if ($got->parsed('OS_Code') ) { + my $value = $got->value('OS_Code'); + + return $self->saveErrorString(undef, "OS_Code must be between 0 and 255, got '$value'") + if $value < 0 || $value > 255 ; + + } + + # gzip only supports Deflate at present + $got->value('Method' => Z_DEFLATED) ; + + if ( ! $got->parsed('ExtraFlags')) { + $got->value('ExtraFlags' => 2) + if $got->value('Level') == Z_BEST_SPEED ; + $got->value('ExtraFlags' => 4) + if $got->value('Level') == Z_BEST_COMPRESSION ; + } + + my $data = $got->value('ExtraField') ; + if (defined $data) { + my $bad = IO::Compress::Zlib::Extra::parseExtraField($data, $strict, 1) ; + return $self->saveErrorString(undef, "Error with ExtraField Parameter: $bad", Z_DATA_ERROR) + if $bad ; + + $got->value('ExtraField', $data) ; + } + } + + return 1; +} + +sub mkTrailer +{ + my $self = shift ; + return pack("V V", *$self->{Compress}->crc32(), + *$self->{UnCompSize}->get32bit()); +} + +sub getInverseClass +{ + return ('IO::Uncompress::Gunzip', + \$IO::Uncompress::Gunzip::GunzipError); +} + +sub getFileInfo +{ + my $self = shift ; + my $params = shift; + my $filename = shift ; + + my $defaultTime = (stat($filename))[9] ; + + $params->value('Name' => $filename) + if ! $params->parsed('Name') ; + + $params->value('Time' => $defaultTime) + if ! $params->parsed('Time') ; +} + + +sub mkHeader +{ + my $self = shift ; + my $param = shift ; + + # stort-circuit if a minimal header is requested. + return GZIP_MINIMUM_HEADER if $param->value('Minimal') ; + + # METHOD + my $method = $param->valueOrDefault('Method', GZIP_CM_DEFLATED) ; + + # FLAGS + my $flags = GZIP_FLG_DEFAULT ; + $flags |= GZIP_FLG_FTEXT if $param->value('TextFlag') ; + $flags |= GZIP_FLG_FHCRC if $param->value('HeaderCRC') ; + $flags |= GZIP_FLG_FEXTRA if $param->wantValue('ExtraField') ; + $flags |= GZIP_FLG_FNAME if $param->wantValue('Name') ; + $flags |= GZIP_FLG_FCOMMENT if $param->wantValue('Comment') ; + + # MTIME + my $time = $param->valueOrDefault('Time', GZIP_MTIME_DEFAULT) ; + + # EXTRA FLAGS + my $extra_flags = $param->valueOrDefault('ExtraFlags', GZIP_XFL_DEFAULT); + + # OS CODE + my $os_code = $param->valueOrDefault('OS_Code', GZIP_OS_DEFAULT) ; + + + my $out = pack("C4 V C C", + GZIP_ID1, # ID1 + GZIP_ID2, # ID2 + $method, # Compression Method + $flags, # Flags + $time, # Modification Time + $extra_flags, # Extra Flags + $os_code, # Operating System Code + ) ; + + # EXTRA + if ($flags & GZIP_FLG_FEXTRA) { + my $extra = $param->value('ExtraField') ; + $out .= pack("v", length $extra) . $extra ; + } + + # NAME + if ($flags & GZIP_FLG_FNAME) { + my $name .= $param->value('Name') ; + $name =~ s/\x00.*$//; + $out .= $name ; + # Terminate the filename with NULL unless it already is + $out .= GZIP_NULL_BYTE + if !length $name or + substr($name, 1, -1) ne GZIP_NULL_BYTE ; + } + + # COMMENT + if ($flags & GZIP_FLG_FCOMMENT) { + my $comment .= $param->value('Comment') ; + $comment =~ s/\x00.*$//; + $out .= $comment ; + # Terminate the comment with NULL unless it already is + $out .= GZIP_NULL_BYTE + if ! length $comment or + substr($comment, 1, -1) ne GZIP_NULL_BYTE; + } + + # HEADER CRC + $out .= pack("v", crc32($out) & 0x00FF ) if $param->value('HeaderCRC') ; + + noUTF8($out); + + return $out ; +} + +sub mkFinalTrailer +{ + return ''; +} + +1; + +__END__ + +=head1 NAME + +IO::Compress::Gzip - Write RFC 1952 files/buffers + + + +=head1 SYNOPSIS + + use IO::Compress::Gzip qw(gzip $GzipError) ; + + my $status = gzip $input => $output [,OPTS] + or die "gzip failed: $GzipError\n"; + + my $z = new IO::Compress::Gzip $output [,OPTS] + or die "gzip failed: $GzipError\n"; + + $z->print($string); + $z->printf($format, $string); + $z->write($string); + $z->syswrite($string [, $length, $offset]); + $z->flush(); + $z->tell(); + $z->eof(); + $z->seek($position, $whence); + $z->binmode(); + $z->fileno(); + $z->opened(); + $z->autoflush(); + $z->input_line_number(); + $z->newStream( [OPTS] ); + + $z->deflateParams(); + + $z->close() ; + + $GzipError ; + + # IO::File mode + + print $z $string; + printf $z $format, $string; + tell $z + eof $z + seek $z, $position, $whence + binmode $z + fileno $z + close $z ; + + +=head1 DESCRIPTION + +This module provides a Perl interface that allows writing compressed +data to files or buffer as defined in RFC 1952. + +All the gzip headers defined in RFC 1952 can be created using +this module. + +For reading RFC 1952 files/buffers, see the companion module +L<IO::Uncompress::Gunzip|IO::Uncompress::Gunzip>. + +=head1 Functional Interface + +A top-level function, C<gzip>, is provided to carry out +"one-shot" compression between buffers and/or files. For finer +control over the compression process, see the L</"OO Interface"> +section. + + use IO::Compress::Gzip qw(gzip $GzipError) ; + + gzip $input => $output [,OPTS] + or die "gzip failed: $GzipError\n"; + +The functional interface needs Perl5.005 or better. + +=head2 gzip $input => $output [, OPTS] + +C<gzip> expects at least two parameters, C<$input> and C<$output>. + +=head3 The C<$input> parameter + +The parameter, C<$input>, is used to define the source of +the uncompressed data. + +It can take one of the following forms: + +=over 5 + +=item A filename + +If the C<$input> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for reading and the input data +will be read from it. + +=item A filehandle + +If the C<$input> parameter is a filehandle, the input data will be +read from it. +The string '-' can be used as an alias for standard input. + +=item A scalar reference + +If C<$input> is a scalar reference, the input data will be read +from C<$$input>. + +=item An array reference + +If C<$input> is an array reference, each element in the array must be a +filename. + +The input data will be read from each file in turn. + +The complete array will be walked to ensure that it only +contains valid filenames before any data is compressed. + +=item An Input FileGlob string + +If C<$input> is a string that is delimited by the characters "<" and ">" +C<gzip> will assume that it is an I<input fileglob string>. The +input is the list of files that match the fileglob. + +If the fileglob does not match any files ... + +See L<File::GlobMapper|File::GlobMapper> for more details. + +=back + +If the C<$input> parameter is any other type, C<undef> will be returned. + +In addition, if C<$input> is a simple filename, the default values for +the C<Name> and C<Time> options will be sourced from that file. + +If you do not want to use these defaults they can be overridden by +explicitly setting the C<Name> and C<Time> options or by setting the +C<Minimal> parameter. + +=head3 The C<$output> parameter + +The parameter C<$output> is used to control the destination of the +compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed +data will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data +will be written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be +stored in C<$$output>. + +=item An Array Reference + +If C<$output> is an array reference, the compressed data will be +pushed onto the array. + +=item An Output FileGlob + +If C<$output> is a string that is delimited by the characters "<" and ">" +C<gzip> will assume that it is an I<output fileglob string>. The +output is the list of files that match the fileglob. + +When C<$output> is an fileglob string, C<$input> must also be a fileglob +string. Anything else is an error. + +=back + +If the C<$output> parameter is any other type, C<undef> will be returned. + +=head2 Notes + +When C<$input> maps to multiple files/buffers and C<$output> is a single +file/buffer the input files/buffers will be stored +in C<$output> as a concatenated series of compressed data streams. + +=head2 Optional Parameters + +Unless specified below, the optional parameters for C<gzip>, +C<OPTS>, are the same as those used with the OO interface defined in the +L</"Constructor Options"> section below. + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option applies to any input or output data streams to +C<gzip> that are filehandles. + +If C<AutoClose> is specified, and the value is true, it will result in all +input and/or output filehandles being closed once C<gzip> has +completed. + +This parameter defaults to 0. + +=item C<< BinModeIn => 0|1 >> + +When reading from a file or filehandle, set C<binmode> before reading. + +Defaults to 0. + +=item C<< Append => 0|1 >> + +The behaviour of this option is dependent on the type of output data +stream. + +=over 5 + +=item * A Buffer + +If C<Append> is enabled, all compressed data will be append to the end of +the output buffer. Otherwise the output buffer will be cleared before any +compressed data is written to it. + +=item * A Filename + +If C<Append> is enabled, the file will be opened in append mode. Otherwise +the contents of the file, if any, will be truncated before any compressed +data is written to it. + +=item * A Filehandle + +If C<Append> is enabled, the filehandle will be positioned to the end of +the file via a call to C<seek> before any compressed data is +written to it. Otherwise the file pointer will not be moved. + +=back + +When C<Append> is specified, and set to true, it will I<append> all compressed +data to the output data stream. + +So when the output is a filehandle it will carry out a seek to the eof +before writing any compressed data. If the output is a filename, it will be opened for +appending. If the output is a buffer, all compressed data will be appened to +the existing buffer. + +Conversely when C<Append> is not specified, or it is present and is set to +false, it will operate as follows. + +When the output is a filename, it will truncate the contents of the file +before writing any compressed data. If the output is a filehandle +its position will not be changed. If the output is a buffer, it will be +wiped before any compressed data is output. + +Defaults to 0. + +=back + +=head2 Examples + +To read the contents of the file C<file1.txt> and write the compressed +data to the file C<file1.txt.gz>. + + use strict ; + use warnings ; + use IO::Compress::Gzip qw(gzip $GzipError) ; + + my $input = "file1.txt"; + gzip $input => "$input.gz" + or die "gzip failed: $GzipError\n"; + +To read from an existing Perl filehandle, C<$input>, and write the +compressed data to a buffer, C<$buffer>. + + use strict ; + use warnings ; + use IO::Compress::Gzip qw(gzip $GzipError) ; + use IO::File ; + + my $input = new IO::File "<file1.txt" + or die "Cannot open 'file1.txt': $!\n" ; + my $buffer ; + gzip $input => \$buffer + or die "gzip failed: $GzipError\n"; + +To compress all files in the directory "/my/home" that match "*.txt" +and store the compressed data in the same directory + + use strict ; + use warnings ; + use IO::Compress::Gzip qw(gzip $GzipError) ; + + gzip '</my/home/*.txt>' => '<*.gz>' + or die "gzip failed: $GzipError\n"; + +and if you want to compress each file one at a time, this will do the trick + + use strict ; + use warnings ; + use IO::Compress::Gzip qw(gzip $GzipError) ; + + for my $input ( glob "/my/home/*.txt" ) + { + my $output = "$input.gz" ; + gzip $input => $output + or die "Error compressing '$input': $GzipError\n"; + } + +=head1 OO Interface + +=head2 Constructor + +The format of the constructor for C<IO::Compress::Gzip> is shown below + + my $z = new IO::Compress::Gzip $output [,OPTS] + or die "IO::Compress::Gzip failed: $GzipError\n"; + +It returns an C<IO::Compress::Gzip> object on success and undef on failure. +The variable C<$GzipError> will contain an error message on failure. + +If you are running Perl 5.005 or better the object, C<$z>, returned from +IO::Compress::Gzip can be used exactly like an L<IO::File|IO::File> filehandle. +This means that all normal output file operations can be carried out +with C<$z>. +For example, to write to a compressed file/buffer you can use either of +these forms + + $z->print("hello world\n"); + print $z "hello world\n"; + +The mandatory parameter C<$output> is used to control the destination +of the compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed data +will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data will be +written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be stored +in C<$$output>. + +=back + +If the C<$output> parameter is any other type, C<IO::Compress::Gzip>::new will +return undef. + +=head2 Constructor Options + +C<OPTS> is any combination of the following options: + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option is only valid when the C<$output> parameter is a filehandle. If +specified, and the value is true, it will result in the C<$output> being +closed once either the C<close> method is called or the C<IO::Compress::Gzip> +object is destroyed. + +This parameter defaults to 0. + +=item C<< Append => 0|1 >> + +Opens C<$output> in append mode. + +The behaviour of this option is dependent on the type of C<$output>. + +=over 5 + +=item * A Buffer + +If C<$output> is a buffer and C<Append> is enabled, all compressed data +will be append to the end of C<$output>. Otherwise C<$output> will be +cleared before any data is written to it. + +=item * A Filename + +If C<$output> is a filename and C<Append> is enabled, the file will be +opened in append mode. Otherwise the contents of the file, if any, will be +truncated before any compressed data is written to it. + +=item * A Filehandle + +If C<$output> is a filehandle, the file pointer will be positioned to the +end of the file via a call to C<seek> before any compressed data is written +to it. Otherwise the file pointer will not be moved. + +=back + +This parameter defaults to 0. + +=item C<< Merge => 0|1 >> + +This option is used to compress input data and append it to an existing +compressed data stream in C<$output>. The end result is a single compressed +data stream stored in C<$output>. + +It is a fatal error to attempt to use this option when C<$output> is not an +RFC 1952 data stream. + +There are a number of other limitations with the C<Merge> option: + +=over 5 + +=item 1 + +This module needs to have been built with zlib 1.2.1 or better to work. A +fatal error will be thrown if C<Merge> is used with an older version of +zlib. + +=item 2 + +If C<$output> is a file or a filehandle, it must be seekable. + +=back + +This parameter defaults to 0. + +=item -Level + +Defines the compression level used by zlib. The value should either be +a number between 0 and 9 (0 means no compression and 9 is maximum +compression), or one of the symbolic constants defined below. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +The default is Z_DEFAULT_COMPRESSION. + +Note, these constants are not imported by C<IO::Compress::Gzip> by default. + + use IO::Compress::Gzip qw(:strategy); + use IO::Compress::Gzip qw(:constants); + use IO::Compress::Gzip qw(:all); + +=item -Strategy + +Defines the strategy used to tune the compression. Use one of the symbolic +constants defined below. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + +The default is Z_DEFAULT_STRATEGY. + +=item C<< Minimal => 0|1 >> + +If specified, this option will force the creation of the smallest possible +compliant gzip header (which is exactly 10 bytes long) as defined in +RFC 1952. + +See the section titled "Compliance" in RFC 1952 for a definition +of the values used for the fields in the gzip header. + +All other parameters that control the content of the gzip header will +be ignored if this parameter is set to 1. + +This parameter defaults to 0. + +=item C<< Comment => $comment >> + +Stores the contents of C<$comment> in the COMMENT field in +the gzip header. +By default, no comment field is written to the gzip file. + +If the C<-Strict> option is enabled, the comment can only consist of ISO +8859-1 characters plus line feed. + +If the C<-Strict> option is disabled, the comment field can contain any +character except NULL. If any null characters are present, the field +will be truncated at the first NULL. + +=item C<< Name => $string >> + +Stores the contents of C<$string> in the gzip NAME header field. If +C<Name> is not specified, no gzip NAME field will be created. + +If the C<-Strict> option is enabled, C<$string> can only consist of ISO +8859-1 characters. + +If C<-Strict> is disabled, then C<$string> can contain any character +except NULL. If any null characters are present, the field will be +truncated at the first NULL. + +=item C<< Time => $number >> + +Sets the MTIME field in the gzip header to $number. + +This field defaults to the time the C<IO::Compress::Gzip> object was created +if this option is not specified. + +=item C<< TextFlag => 0|1 >> + +This parameter controls the setting of the FLG.FTEXT bit in the gzip +header. It is used to signal that the data stored in the gzip file/buffer +is probably text. + +The default is 0. + +=item C<< HeaderCRC => 0|1 >> + +When true this parameter will set the FLG.FHCRC bit to 1 in the gzip header +and set the CRC16 header field to the CRC of the complete gzip header +except the CRC16 field itself. + +B<Note> that gzip files created with the C<HeaderCRC> flag set to 1 cannot +be read by most, if not all, of the the standard gunzip utilities, most +notably gzip version 1.2.4. You should therefore avoid using this option if +you want to maximize the portability of your gzip files. + +This parameter defaults to 0. + +=item C<< OS_Code => $value >> + +Stores C<$value> in the gzip OS header field. A number between 0 and 255 is +valid. + +If not specified, this parameter defaults to the OS code of the Operating +System this module was built on. The value 3 is used as a catch-all for all +Unix variants and unknown Operating Systems. + +=item C<< ExtraField => $data >> + +This parameter allows additional metadata to be stored in the ExtraField in +the gzip header. An RFC 1952 compliant ExtraField consists of zero or more +subfields. Each subfield consists of a two byte header followed by the +subfield data. + +The list of subfields can be supplied in any of the following formats + + -ExtraField => [$id1, $data1, + $id2, $data2, + ... + ] + -ExtraField => [ [$id1 => $data1], + [$id2 => $data2], + ... + ] + -ExtraField => { $id1 => $data1, + $id2 => $data2, + ... + } + +Where C<$id1>, C<$id2> are two byte subfield ID's. The second byte of +the ID cannot be 0, unless the C<Strict> option has been disabled. + +If you use the hash syntax, you have no control over the order in which +the ExtraSubFields are stored, plus you cannot have SubFields with +duplicate ID. + +Alternatively the list of subfields can by supplied as a scalar, thus + + -ExtraField => $rawdata + +If you use the raw format, and the C<Strict> option is enabled, +C<IO::Compress::Gzip> will check that C<$rawdata> consists of zero or more +conformant sub-fields. When C<Strict> is disabled, C<$rawdata> can +consist of any arbitrary byte stream. + +The maximum size of the Extra Field 65535 bytes. + +=item C<< ExtraFlags => $value >> + +Sets the XFL byte in the gzip header to C<$value>. + +If this option is not present, the value stored in XFL field will be +determined by the setting of the C<Level> option. + +If C<< Level => Z_BEST_SPEED >> has been specified then XFL is set to 2. +If C<< Level => Z_BEST_COMPRESSION >> has been specified then XFL is set to 4. +Otherwise XFL is set to 0. + +=item C<< Strict => 0|1 >> + +C<Strict> will optionally police the values supplied with other options +to ensure they are compliant with RFC1952. + +This option is enabled by default. + +If C<Strict> is enabled the following behaviour will be policed: + +=over 5 + +=item * + +The value supplied with the C<Name> option can only contain ISO 8859-1 +characters. + +=item * + +The value supplied with the C<Comment> option can only contain ISO 8859-1 +characters plus line-feed. + +=item * + +The values supplied with the C<-Name> and C<-Comment> options cannot +contain multiple embedded nulls. + +=item * + +If an C<ExtraField> option is specified and it is a simple scalar, +it must conform to the sub-field structure as defined in RFC 1952. + +=item * + +If an C<ExtraField> option is specified the second byte of the ID will be +checked in each subfield to ensure that it does not contain the reserved +value 0x00. + +=back + +When C<Strict> is disabled the following behaviour will be policed: + +=over 5 + +=item * + +The value supplied with C<-Name> option can contain +any character except NULL. + +=item * + +The value supplied with C<-Comment> option can contain any character +except NULL. + +=item * + +The values supplied with the C<-Name> and C<-Comment> options can contain +multiple embedded nulls. The string written to the gzip header will +consist of the characters up to, but not including, the first embedded +NULL. + +=item * + +If an C<ExtraField> option is specified and it is a simple scalar, the +structure will not be checked. The only error is if the length is too big. + +=item * + +The ID header in an C<ExtraField> sub-field can consist of any two bytes. + +=back + +=back + +=head2 Examples + +TODO + +=head1 Methods + +=head2 print + +Usage is + + $z->print($data) + print $z $data + +Compresses and outputs the contents of the C<$data> parameter. This +has the same behaviour as the C<print> built-in. + +Returns true if successful. + +=head2 printf + +Usage is + + $z->printf($format, $data) + printf $z $format, $data + +Compresses and outputs the contents of the C<$data> parameter. + +Returns true if successful. + +=head2 syswrite + +Usage is + + $z->syswrite $data + $z->syswrite $data, $length + $z->syswrite $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 write + +Usage is + + $z->write $data + $z->write $data, $length + $z->write $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 flush + +Usage is + + $z->flush; + $z->flush($flush_type); + +Flushes any pending compressed data to the output file/buffer. + +This method takes an optional parameter, C<$flush_type>, that controls +how the flushing will be carried out. By default the C<$flush_type> +used is C<Z_FINISH>. Other valid values for C<$flush_type> are +C<Z_NO_FLUSH>, C<Z_SYNC_FLUSH>, C<Z_FULL_FLUSH> and C<Z_BLOCK>. It is +strongly recommended that you only set the C<flush_type> parameter if +you fully understand the implications of what it does - overuse of C<flush> +can seriously degrade the level of compression achieved. See the C<zlib> +documentation for details. + +Returns true on success. + +=head2 tell + +Usage is + + $z->tell() + tell $z + +Returns the uncompressed file offset. + +=head2 eof + +Usage is + + $z->eof(); + eof($z); + +Returns true if the C<close> method has been called. + +=head2 seek + + $z->seek($position, $whence); + seek($z, $position, $whence); + +Provides a sub-set of the C<seek> functionality, with the restriction +that it is only legal to seek forward in the output file/buffer. +It is a fatal error to attempt to seek backward. + +Empty parts of the file/buffer will have NULL (0x00) bytes written to them. + +The C<$whence> parameter takes one the usual values, namely SEEK_SET, +SEEK_CUR or SEEK_END. + +Returns 1 on success, 0 on failure. + +=head2 binmode + +Usage is + + $z->binmode + binmode $z ; + +This is a noop provided for completeness. + +=head2 opened + + $z->opened() + +Returns true if the object currently refers to a opened file/buffer. + +=head2 autoflush + + my $prev = $z->autoflush() + my $prev = $z->autoflush(EXPR) + +If the C<$z> object is associated with a file or a filehandle, this method +returns the current autoflush setting for the underlying filehandle. If +C<EXPR> is present, and is non-zero, it will enable flushing after every +write/print operation. + +If C<$z> is associated with a buffer, this method has no effect and always +returns C<undef>. + +B<Note> that the special variable C<$|> B<cannot> be used to set or +retrieve the autoflush setting. + +=head2 input_line_number + + $z->input_line_number() + $z->input_line_number(EXPR) + +This method always returns C<undef> when compressing. + +=head2 fileno + + $z->fileno() + fileno($z) + +If the C<$z> object is associated with a file or a filehandle, C<fileno> +will return the underlying file descriptor. Once the C<close> method is +called C<fileno> will return C<undef>. + +If the C<$z> object is is associated with a buffer, this method will return +C<undef>. + +=head2 close + + $z->close() ; + close $z ; + +Flushes any pending compressed data and then closes the output file/buffer. + +For most versions of Perl this method will be automatically invoked if +the IO::Compress::Gzip object is destroyed (either explicitly or by the +variable with the reference to the object going out of scope). The +exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In +these cases, the C<close> method will be called automatically, but +not until global destruction of all live objects when the program is +terminating. + +Therefore, if you want your scripts to be able to run on all versions +of Perl, you should call C<close> explicitly and not rely on automatic +closing. + +Returns true on success, otherwise 0. + +If the C<AutoClose> option has been enabled when the IO::Compress::Gzip +object was created, and the object is associated with a file, the +underlying file will also be closed. + +=head2 newStream([OPTS]) + +Usage is + + $z->newStream( [OPTS] ) + +Closes the current compressed data stream and starts a new one. + +OPTS consists of any of the the options that are available when creating +the C<$z> object. + +See the L</"Constructor Options"> section for more details. + +=head2 deflateParams + +Usage is + + $z->deflateParams + +TODO + +=head1 Importing + +A number of symbolic constants are required by some methods in +C<IO::Compress::Gzip>. None are imported by default. + +=over 5 + +=item :all + +Imports C<gzip>, C<$GzipError> and all symbolic +constants that can be used by C<IO::Compress::Gzip>. Same as doing this + + use IO::Compress::Gzip qw(gzip $GzipError :constants) ; + +=item :constants + +Import all symbolic constants. Same as doing this + + use IO::Compress::Gzip qw(:flush :level :strategy) ; + +=item :flush + +These symbolic constants are used by the C<flush> method. + + Z_NO_FLUSH + Z_PARTIAL_FLUSH + Z_SYNC_FLUSH + Z_FULL_FLUSH + Z_FINISH + Z_BLOCK + +=item :level + +These symbolic constants are used by the C<Level> option in the constructor. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +=item :strategy + +These symbolic constants are used by the C<Strategy> option in the constructor. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + + + + +=back + +=head1 EXAMPLES + +=head2 Apache::GZip Revisited + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Apache::GZip Revisited"> + + + +=head2 Working with Net::FTP + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Compressed files and Net::FTP"> + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +For RFC 1950, 1951 and 1952 see +F<http://www.faqs.org/rfcs/rfc1950.html>, +F<http://www.faqs.org/rfcs/rfc1951.html> and +F<http://www.faqs.org/rfcs/rfc1952.html> + +The I<zlib> compression library was written by Jean-loup Gailly +F<gzip@prep.ai.mit.edu> and Mark Adler F<madler@alumni.caltech.edu>. + +The primary site for the I<zlib> compression library is +F<http://www.zlib.org>. + +The primary site for gzip is F<http://www.gzip.org>. + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2010 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Gzip/Constants.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Gzip/Constants.pm new file mode 100755 index 00000000000..8504330d188 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Gzip/Constants.pm @@ -0,0 +1,148 @@ +package IO::Compress::Gzip::Constants; + +use strict ; +use warnings; +use bytes; + +require Exporter; + +our ($VERSION, @ISA, @EXPORT, %GZIP_OS_Names); +our ($GZIP_FNAME_INVALID_CHAR_RE, $GZIP_FCOMMENT_INVALID_CHAR_RE); + +$VERSION = '2.024'; + +@ISA = qw(Exporter); + +@EXPORT= qw( + + GZIP_ID_SIZE + GZIP_ID1 + GZIP_ID2 + + GZIP_FLG_DEFAULT + GZIP_FLG_FTEXT + GZIP_FLG_FHCRC + GZIP_FLG_FEXTRA + GZIP_FLG_FNAME + GZIP_FLG_FCOMMENT + GZIP_FLG_RESERVED + + GZIP_CM_DEFLATED + + GZIP_MIN_HEADER_SIZE + GZIP_TRAILER_SIZE + + GZIP_MTIME_DEFAULT + GZIP_XFL_DEFAULT + GZIP_FEXTRA_HEADER_SIZE + GZIP_FEXTRA_MAX_SIZE + GZIP_FEXTRA_SUBFIELD_HEADER_SIZE + GZIP_FEXTRA_SUBFIELD_ID_SIZE + GZIP_FEXTRA_SUBFIELD_LEN_SIZE + GZIP_FEXTRA_SUBFIELD_MAX_SIZE + + $GZIP_FNAME_INVALID_CHAR_RE + $GZIP_FCOMMENT_INVALID_CHAR_RE + + GZIP_FHCRC_SIZE + + GZIP_ISIZE_MAX + GZIP_ISIZE_MOD_VALUE + + + GZIP_NULL_BYTE + + GZIP_OS_DEFAULT + + %GZIP_OS_Names + + GZIP_MINIMUM_HEADER + + ); + +# Constant names derived from RFC 1952 + +use constant GZIP_ID_SIZE => 2 ; +use constant GZIP_ID1 => 0x1F; +use constant GZIP_ID2 => 0x8B; + +use constant GZIP_MIN_HEADER_SIZE => 10 ;# minimum gzip header size +use constant GZIP_TRAILER_SIZE => 8 ; + + +use constant GZIP_FLG_DEFAULT => 0x00 ; +use constant GZIP_FLG_FTEXT => 0x01 ; +use constant GZIP_FLG_FHCRC => 0x02 ; # called CONTINUATION in gzip +use constant GZIP_FLG_FEXTRA => 0x04 ; +use constant GZIP_FLG_FNAME => 0x08 ; +use constant GZIP_FLG_FCOMMENT => 0x10 ; +#use constant GZIP_FLG_ENCRYPTED => 0x20 ; # documented in gzip sources +use constant GZIP_FLG_RESERVED => (0x20 | 0x40 | 0x80) ; + +use constant GZIP_XFL_DEFAULT => 0x00 ; + +use constant GZIP_MTIME_DEFAULT => 0x00 ; + +use constant GZIP_FEXTRA_HEADER_SIZE => 2 ; +use constant GZIP_FEXTRA_MAX_SIZE => 0xFFFF ; +use constant GZIP_FEXTRA_SUBFIELD_ID_SIZE => 2 ; +use constant GZIP_FEXTRA_SUBFIELD_LEN_SIZE => 2 ; +use constant GZIP_FEXTRA_SUBFIELD_HEADER_SIZE => GZIP_FEXTRA_SUBFIELD_ID_SIZE + + GZIP_FEXTRA_SUBFIELD_LEN_SIZE; +use constant GZIP_FEXTRA_SUBFIELD_MAX_SIZE => GZIP_FEXTRA_MAX_SIZE - + GZIP_FEXTRA_SUBFIELD_HEADER_SIZE ; + + +if (ord('A') == 193) +{ + # EBCDIC + $GZIP_FNAME_INVALID_CHAR_RE = '[\x00-\x3f\xff]'; + $GZIP_FCOMMENT_INVALID_CHAR_RE = '[\x00-\x0a\x11-\x14\x16-\x3f\xff]'; + +} +else +{ + $GZIP_FNAME_INVALID_CHAR_RE = '[\x00-\x1F\x7F-\x9F]'; + $GZIP_FCOMMENT_INVALID_CHAR_RE = '[\x00-\x09\x11-\x1F\x7F-\x9F]'; +} + +use constant GZIP_FHCRC_SIZE => 2 ; # aka CONTINUATION in gzip + +use constant GZIP_CM_DEFLATED => 8 ; + +use constant GZIP_NULL_BYTE => "\x00"; +use constant GZIP_ISIZE_MAX => 0xFFFFFFFF ; +use constant GZIP_ISIZE_MOD_VALUE => GZIP_ISIZE_MAX + 1 ; + +# OS Names sourced from http://www.gzip.org/format.txt + +use constant GZIP_OS_DEFAULT=> 0xFF ; +%GZIP_OS_Names = ( + 0 => 'MS-DOS', + 1 => 'Amiga', + 2 => 'VMS', + 3 => 'Unix', + 4 => 'VM/CMS', + 5 => 'Atari TOS', + 6 => 'HPFS (OS/2, NT)', + 7 => 'Macintosh', + 8 => 'Z-System', + 9 => 'CP/M', + 10 => 'TOPS-20', + 11 => 'NTFS (NT)', + 12 => 'SMS QDOS', + 13 => 'Acorn RISCOS', + 14 => 'VFAT file system (Win95, NT)', + 15 => 'MVS', + 16 => 'BeOS', + 17 => 'Tandem/NSK', + 18 => 'THEOS', + GZIP_OS_DEFAULT() => 'Unknown', + ) ; + +use constant GZIP_MINIMUM_HEADER => pack("C4 V C C", + GZIP_ID1, GZIP_ID2, GZIP_CM_DEFLATED, GZIP_FLG_DEFAULT, + GZIP_MTIME_DEFAULT, GZIP_XFL_DEFAULT, GZIP_OS_DEFAULT) ; + + +1; diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/RawDeflate.pm b/Master/tlpkg/tlperl/lib/IO/Compress/RawDeflate.pm new file mode 100755 index 00000000000..b97b51c0509 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/RawDeflate.pm @@ -0,0 +1,1017 @@ +package IO::Compress::RawDeflate ; + +# create RFC1951 +# +use strict ; +use warnings; +use bytes; + + +use IO::Compress::Base 2.024 ; +use IO::Compress::Base::Common 2.024 qw(:Status createSelfTiedObject); +use IO::Compress::Adapter::Deflate 2.024 ; + +require Exporter ; + + +our ($VERSION, @ISA, @EXPORT_OK, %DEFLATE_CONSTANTS, %EXPORT_TAGS, $RawDeflateError); + +$VERSION = '2.024'; +$RawDeflateError = ''; + +@ISA = qw(Exporter IO::Compress::Base); +@EXPORT_OK = qw( $RawDeflateError rawdeflate ) ; + +%EXPORT_TAGS = ( flush => [qw{ + Z_NO_FLUSH + Z_PARTIAL_FLUSH + Z_SYNC_FLUSH + Z_FULL_FLUSH + Z_FINISH + Z_BLOCK + }], + level => [qw{ + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + }], + strategy => [qw{ + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + }], + + ); + +{ + my %seen; + foreach (keys %EXPORT_TAGS ) + { + push @{$EXPORT_TAGS{constants}}, + grep { !$seen{$_}++ } + @{ $EXPORT_TAGS{$_} } + } + $EXPORT_TAGS{all} = $EXPORT_TAGS{constants} ; +} + + +%DEFLATE_CONSTANTS = %EXPORT_TAGS; + +push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; + +Exporter::export_ok_tags('all'); + + + +sub new +{ + my $class = shift ; + + my $obj = createSelfTiedObject($class, \$RawDeflateError); + + return $obj->_create(undef, @_); +} + +sub rawdeflate +{ + my $obj = createSelfTiedObject(undef, \$RawDeflateError); + return $obj->_def(@_); +} + +sub ckParams +{ + my $self = shift ; + my $got = shift; + + return 1 ; +} + +sub mkComp +{ + my $self = shift ; + my $got = shift ; + + my ($obj, $errstr, $errno) = IO::Compress::Adapter::Deflate::mkCompObject( + $got->value('CRC32'), + $got->value('Adler32'), + $got->value('Level'), + $got->value('Strategy') + ); + + return $self->saveErrorString(undef, $errstr, $errno) + if ! defined $obj; + + return $obj; +} + + +sub mkHeader +{ + my $self = shift ; + return ''; +} + +sub mkTrailer +{ + my $self = shift ; + return ''; +} + +sub mkFinalTrailer +{ + return ''; +} + + +#sub newHeader +#{ +# my $self = shift ; +# return ''; +#} + +sub getExtraParams +{ + my $self = shift ; + return $self->getZlibParams(); +} + +sub getZlibParams +{ + my $self = shift ; + + use IO::Compress::Base::Common 2.024 qw(:Parse); + use Compress::Raw::Zlib 2.024 qw(Z_DEFLATED Z_DEFAULT_COMPRESSION Z_DEFAULT_STRATEGY); + + + return ( + + # zlib behaviour + #'Method' => [0, 1, Parse_unsigned, Z_DEFLATED], + 'Level' => [0, 1, Parse_signed, Z_DEFAULT_COMPRESSION], + 'Strategy' => [0, 1, Parse_signed, Z_DEFAULT_STRATEGY], + + 'CRC32' => [0, 1, Parse_boolean, 0], + 'ADLER32' => [0, 1, Parse_boolean, 0], + 'Merge' => [1, 1, Parse_boolean, 0], + ); + + +} + +sub getInverseClass +{ + return ('IO::Uncompress::RawInflate', + \$IO::Uncompress::RawInflate::RawInflateError); +} + +sub getFileInfo +{ + my $self = shift ; + my $params = shift; + my $file = shift ; + +} + +use IO::Seekable qw(SEEK_SET); + +sub createMerge +{ + my $self = shift ; + my $outValue = shift ; + my $outType = shift ; + + my ($invClass, $error_ref) = $self->getInverseClass(); + eval "require $invClass" + or die "aaaahhhh" ; + + my $inf = $invClass->new( $outValue, + Transparent => 0, + #Strict => 1, + AutoClose => 0, + Scan => 1) + or return $self->saveErrorString(undef, "Cannot create InflateScan object: $$error_ref" ) ; + + my $end_offset = 0; + $inf->scan() + or return $self->saveErrorString(undef, "Error Scanning: $$error_ref", $inf->errorNo) ; + $inf->zap($end_offset) + or return $self->saveErrorString(undef, "Error Zapping: $$error_ref", $inf->errorNo) ; + + my $def = *$self->{Compress} = $inf->createDeflate(); + + *$self->{Header} = *$inf->{Info}{Header}; + *$self->{UnCompSize} = *$inf->{UnCompSize}->clone(); + *$self->{CompSize} = *$inf->{CompSize}->clone(); + # TODO -- fix this + #*$self->{CompSize} = new U64(0, *$self->{UnCompSize_32bit}); + + + if ( $outType eq 'buffer') + { substr( ${ *$self->{Buffer} }, $end_offset) = '' } + elsif ($outType eq 'handle' || $outType eq 'filename') { + *$self->{FH} = *$inf->{FH} ; + delete *$inf->{FH}; + *$self->{FH}->flush() ; + *$self->{Handle} = 1 if $outType eq 'handle'; + + #seek(*$self->{FH}, $end_offset, SEEK_SET) + *$self->{FH}->seek($end_offset, SEEK_SET) + or return $self->saveErrorString(undef, $!, $!) ; + } + + return $def ; +} + +#### zlib specific methods + +sub deflateParams +{ + my $self = shift ; + + my $level = shift ; + my $strategy = shift ; + + my $status = *$self->{Compress}->deflateParams(Level => $level, Strategy => $strategy) ; + return $self->saveErrorString(0, *$self->{Compress}{Error}, *$self->{Compress}{ErrorNo}) + if $status == STATUS_ERROR; + + return 1; +} + + + + +1; + +__END__ + +=head1 NAME + +IO::Compress::RawDeflate - Write RFC 1951 files/buffers + + + +=head1 SYNOPSIS + + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + + my $status = rawdeflate $input => $output [,OPTS] + or die "rawdeflate failed: $RawDeflateError\n"; + + my $z = new IO::Compress::RawDeflate $output [,OPTS] + or die "rawdeflate failed: $RawDeflateError\n"; + + $z->print($string); + $z->printf($format, $string); + $z->write($string); + $z->syswrite($string [, $length, $offset]); + $z->flush(); + $z->tell(); + $z->eof(); + $z->seek($position, $whence); + $z->binmode(); + $z->fileno(); + $z->opened(); + $z->autoflush(); + $z->input_line_number(); + $z->newStream( [OPTS] ); + + $z->deflateParams(); + + $z->close() ; + + $RawDeflateError ; + + # IO::File mode + + print $z $string; + printf $z $format, $string; + tell $z + eof $z + seek $z, $position, $whence + binmode $z + fileno $z + close $z ; + + +=head1 DESCRIPTION + +This module provides a Perl interface that allows writing compressed +data to files or buffer as defined in RFC 1951. + +Note that RFC 1951 data is not a good choice of compression format +to use in isolation, especially if you want to auto-detect it. + +For reading RFC 1951 files/buffers, see the companion module +L<IO::Uncompress::RawInflate|IO::Uncompress::RawInflate>. + +=head1 Functional Interface + +A top-level function, C<rawdeflate>, is provided to carry out +"one-shot" compression between buffers and/or files. For finer +control over the compression process, see the L</"OO Interface"> +section. + + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + + rawdeflate $input => $output [,OPTS] + or die "rawdeflate failed: $RawDeflateError\n"; + +The functional interface needs Perl5.005 or better. + +=head2 rawdeflate $input => $output [, OPTS] + +C<rawdeflate> expects at least two parameters, C<$input> and C<$output>. + +=head3 The C<$input> parameter + +The parameter, C<$input>, is used to define the source of +the uncompressed data. + +It can take one of the following forms: + +=over 5 + +=item A filename + +If the C<$input> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for reading and the input data +will be read from it. + +=item A filehandle + +If the C<$input> parameter is a filehandle, the input data will be +read from it. +The string '-' can be used as an alias for standard input. + +=item A scalar reference + +If C<$input> is a scalar reference, the input data will be read +from C<$$input>. + +=item An array reference + +If C<$input> is an array reference, each element in the array must be a +filename. + +The input data will be read from each file in turn. + +The complete array will be walked to ensure that it only +contains valid filenames before any data is compressed. + +=item An Input FileGlob string + +If C<$input> is a string that is delimited by the characters "<" and ">" +C<rawdeflate> will assume that it is an I<input fileglob string>. The +input is the list of files that match the fileglob. + +If the fileglob does not match any files ... + +See L<File::GlobMapper|File::GlobMapper> for more details. + +=back + +If the C<$input> parameter is any other type, C<undef> will be returned. + +=head3 The C<$output> parameter + +The parameter C<$output> is used to control the destination of the +compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed +data will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data +will be written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be +stored in C<$$output>. + +=item An Array Reference + +If C<$output> is an array reference, the compressed data will be +pushed onto the array. + +=item An Output FileGlob + +If C<$output> is a string that is delimited by the characters "<" and ">" +C<rawdeflate> will assume that it is an I<output fileglob string>. The +output is the list of files that match the fileglob. + +When C<$output> is an fileglob string, C<$input> must also be a fileglob +string. Anything else is an error. + +=back + +If the C<$output> parameter is any other type, C<undef> will be returned. + +=head2 Notes + +When C<$input> maps to multiple files/buffers and C<$output> is a single +file/buffer the input files/buffers will be stored +in C<$output> as a concatenated series of compressed data streams. + +=head2 Optional Parameters + +Unless specified below, the optional parameters for C<rawdeflate>, +C<OPTS>, are the same as those used with the OO interface defined in the +L</"Constructor Options"> section below. + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option applies to any input or output data streams to +C<rawdeflate> that are filehandles. + +If C<AutoClose> is specified, and the value is true, it will result in all +input and/or output filehandles being closed once C<rawdeflate> has +completed. + +This parameter defaults to 0. + +=item C<< BinModeIn => 0|1 >> + +When reading from a file or filehandle, set C<binmode> before reading. + +Defaults to 0. + +=item C<< Append => 0|1 >> + +The behaviour of this option is dependent on the type of output data +stream. + +=over 5 + +=item * A Buffer + +If C<Append> is enabled, all compressed data will be append to the end of +the output buffer. Otherwise the output buffer will be cleared before any +compressed data is written to it. + +=item * A Filename + +If C<Append> is enabled, the file will be opened in append mode. Otherwise +the contents of the file, if any, will be truncated before any compressed +data is written to it. + +=item * A Filehandle + +If C<Append> is enabled, the filehandle will be positioned to the end of +the file via a call to C<seek> before any compressed data is +written to it. Otherwise the file pointer will not be moved. + +=back + +When C<Append> is specified, and set to true, it will I<append> all compressed +data to the output data stream. + +So when the output is a filehandle it will carry out a seek to the eof +before writing any compressed data. If the output is a filename, it will be opened for +appending. If the output is a buffer, all compressed data will be appened to +the existing buffer. + +Conversely when C<Append> is not specified, or it is present and is set to +false, it will operate as follows. + +When the output is a filename, it will truncate the contents of the file +before writing any compressed data. If the output is a filehandle +its position will not be changed. If the output is a buffer, it will be +wiped before any compressed data is output. + +Defaults to 0. + +=back + +=head2 Examples + +To read the contents of the file C<file1.txt> and write the compressed +data to the file C<file1.txt.1951>. + + use strict ; + use warnings ; + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + + my $input = "file1.txt"; + rawdeflate $input => "$input.1951" + or die "rawdeflate failed: $RawDeflateError\n"; + +To read from an existing Perl filehandle, C<$input>, and write the +compressed data to a buffer, C<$buffer>. + + use strict ; + use warnings ; + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + use IO::File ; + + my $input = new IO::File "<file1.txt" + or die "Cannot open 'file1.txt': $!\n" ; + my $buffer ; + rawdeflate $input => \$buffer + or die "rawdeflate failed: $RawDeflateError\n"; + +To compress all files in the directory "/my/home" that match "*.txt" +and store the compressed data in the same directory + + use strict ; + use warnings ; + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + + rawdeflate '</my/home/*.txt>' => '<*.1951>' + or die "rawdeflate failed: $RawDeflateError\n"; + +and if you want to compress each file one at a time, this will do the trick + + use strict ; + use warnings ; + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError) ; + + for my $input ( glob "/my/home/*.txt" ) + { + my $output = "$input.1951" ; + rawdeflate $input => $output + or die "Error compressing '$input': $RawDeflateError\n"; + } + +=head1 OO Interface + +=head2 Constructor + +The format of the constructor for C<IO::Compress::RawDeflate> is shown below + + my $z = new IO::Compress::RawDeflate $output [,OPTS] + or die "IO::Compress::RawDeflate failed: $RawDeflateError\n"; + +It returns an C<IO::Compress::RawDeflate> object on success and undef on failure. +The variable C<$RawDeflateError> will contain an error message on failure. + +If you are running Perl 5.005 or better the object, C<$z>, returned from +IO::Compress::RawDeflate can be used exactly like an L<IO::File|IO::File> filehandle. +This means that all normal output file operations can be carried out +with C<$z>. +For example, to write to a compressed file/buffer you can use either of +these forms + + $z->print("hello world\n"); + print $z "hello world\n"; + +The mandatory parameter C<$output> is used to control the destination +of the compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed data +will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data will be +written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be stored +in C<$$output>. + +=back + +If the C<$output> parameter is any other type, C<IO::Compress::RawDeflate>::new will +return undef. + +=head2 Constructor Options + +C<OPTS> is any combination of the following options: + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option is only valid when the C<$output> parameter is a filehandle. If +specified, and the value is true, it will result in the C<$output> being +closed once either the C<close> method is called or the C<IO::Compress::RawDeflate> +object is destroyed. + +This parameter defaults to 0. + +=item C<< Append => 0|1 >> + +Opens C<$output> in append mode. + +The behaviour of this option is dependent on the type of C<$output>. + +=over 5 + +=item * A Buffer + +If C<$output> is a buffer and C<Append> is enabled, all compressed data +will be append to the end of C<$output>. Otherwise C<$output> will be +cleared before any data is written to it. + +=item * A Filename + +If C<$output> is a filename and C<Append> is enabled, the file will be +opened in append mode. Otherwise the contents of the file, if any, will be +truncated before any compressed data is written to it. + +=item * A Filehandle + +If C<$output> is a filehandle, the file pointer will be positioned to the +end of the file via a call to C<seek> before any compressed data is written +to it. Otherwise the file pointer will not be moved. + +=back + +This parameter defaults to 0. + +=item C<< Merge => 0|1 >> + +This option is used to compress input data and append it to an existing +compressed data stream in C<$output>. The end result is a single compressed +data stream stored in C<$output>. + +It is a fatal error to attempt to use this option when C<$output> is not an +RFC 1951 data stream. + +There are a number of other limitations with the C<Merge> option: + +=over 5 + +=item 1 + +This module needs to have been built with zlib 1.2.1 or better to work. A +fatal error will be thrown if C<Merge> is used with an older version of +zlib. + +=item 2 + +If C<$output> is a file or a filehandle, it must be seekable. + +=back + +This parameter defaults to 0. + +=item -Level + +Defines the compression level used by zlib. The value should either be +a number between 0 and 9 (0 means no compression and 9 is maximum +compression), or one of the symbolic constants defined below. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +The default is Z_DEFAULT_COMPRESSION. + +Note, these constants are not imported by C<IO::Compress::RawDeflate> by default. + + use IO::Compress::RawDeflate qw(:strategy); + use IO::Compress::RawDeflate qw(:constants); + use IO::Compress::RawDeflate qw(:all); + +=item -Strategy + +Defines the strategy used to tune the compression. Use one of the symbolic +constants defined below. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + +The default is Z_DEFAULT_STRATEGY. + +=item C<< Strict => 0|1 >> + +This is a placeholder option. + +=back + +=head2 Examples + +TODO + +=head1 Methods + +=head2 print + +Usage is + + $z->print($data) + print $z $data + +Compresses and outputs the contents of the C<$data> parameter. This +has the same behaviour as the C<print> built-in. + +Returns true if successful. + +=head2 printf + +Usage is + + $z->printf($format, $data) + printf $z $format, $data + +Compresses and outputs the contents of the C<$data> parameter. + +Returns true if successful. + +=head2 syswrite + +Usage is + + $z->syswrite $data + $z->syswrite $data, $length + $z->syswrite $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 write + +Usage is + + $z->write $data + $z->write $data, $length + $z->write $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 flush + +Usage is + + $z->flush; + $z->flush($flush_type); + +Flushes any pending compressed data to the output file/buffer. + +This method takes an optional parameter, C<$flush_type>, that controls +how the flushing will be carried out. By default the C<$flush_type> +used is C<Z_FINISH>. Other valid values for C<$flush_type> are +C<Z_NO_FLUSH>, C<Z_SYNC_FLUSH>, C<Z_FULL_FLUSH> and C<Z_BLOCK>. It is +strongly recommended that you only set the C<flush_type> parameter if +you fully understand the implications of what it does - overuse of C<flush> +can seriously degrade the level of compression achieved. See the C<zlib> +documentation for details. + +Returns true on success. + +=head2 tell + +Usage is + + $z->tell() + tell $z + +Returns the uncompressed file offset. + +=head2 eof + +Usage is + + $z->eof(); + eof($z); + +Returns true if the C<close> method has been called. + +=head2 seek + + $z->seek($position, $whence); + seek($z, $position, $whence); + +Provides a sub-set of the C<seek> functionality, with the restriction +that it is only legal to seek forward in the output file/buffer. +It is a fatal error to attempt to seek backward. + +Empty parts of the file/buffer will have NULL (0x00) bytes written to them. + +The C<$whence> parameter takes one the usual values, namely SEEK_SET, +SEEK_CUR or SEEK_END. + +Returns 1 on success, 0 on failure. + +=head2 binmode + +Usage is + + $z->binmode + binmode $z ; + +This is a noop provided for completeness. + +=head2 opened + + $z->opened() + +Returns true if the object currently refers to a opened file/buffer. + +=head2 autoflush + + my $prev = $z->autoflush() + my $prev = $z->autoflush(EXPR) + +If the C<$z> object is associated with a file or a filehandle, this method +returns the current autoflush setting for the underlying filehandle. If +C<EXPR> is present, and is non-zero, it will enable flushing after every +write/print operation. + +If C<$z> is associated with a buffer, this method has no effect and always +returns C<undef>. + +B<Note> that the special variable C<$|> B<cannot> be used to set or +retrieve the autoflush setting. + +=head2 input_line_number + + $z->input_line_number() + $z->input_line_number(EXPR) + +This method always returns C<undef> when compressing. + +=head2 fileno + + $z->fileno() + fileno($z) + +If the C<$z> object is associated with a file or a filehandle, C<fileno> +will return the underlying file descriptor. Once the C<close> method is +called C<fileno> will return C<undef>. + +If the C<$z> object is is associated with a buffer, this method will return +C<undef>. + +=head2 close + + $z->close() ; + close $z ; + +Flushes any pending compressed data and then closes the output file/buffer. + +For most versions of Perl this method will be automatically invoked if +the IO::Compress::RawDeflate object is destroyed (either explicitly or by the +variable with the reference to the object going out of scope). The +exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In +these cases, the C<close> method will be called automatically, but +not until global destruction of all live objects when the program is +terminating. + +Therefore, if you want your scripts to be able to run on all versions +of Perl, you should call C<close> explicitly and not rely on automatic +closing. + +Returns true on success, otherwise 0. + +If the C<AutoClose> option has been enabled when the IO::Compress::RawDeflate +object was created, and the object is associated with a file, the +underlying file will also be closed. + +=head2 newStream([OPTS]) + +Usage is + + $z->newStream( [OPTS] ) + +Closes the current compressed data stream and starts a new one. + +OPTS consists of any of the the options that are available when creating +the C<$z> object. + +See the L</"Constructor Options"> section for more details. + +=head2 deflateParams + +Usage is + + $z->deflateParams + +TODO + +=head1 Importing + +A number of symbolic constants are required by some methods in +C<IO::Compress::RawDeflate>. None are imported by default. + +=over 5 + +=item :all + +Imports C<rawdeflate>, C<$RawDeflateError> and all symbolic +constants that can be used by C<IO::Compress::RawDeflate>. Same as doing this + + use IO::Compress::RawDeflate qw(rawdeflate $RawDeflateError :constants) ; + +=item :constants + +Import all symbolic constants. Same as doing this + + use IO::Compress::RawDeflate qw(:flush :level :strategy) ; + +=item :flush + +These symbolic constants are used by the C<flush> method. + + Z_NO_FLUSH + Z_PARTIAL_FLUSH + Z_SYNC_FLUSH + Z_FULL_FLUSH + Z_FINISH + Z_BLOCK + +=item :level + +These symbolic constants are used by the C<Level> option in the constructor. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +=item :strategy + +These symbolic constants are used by the C<Strategy> option in the constructor. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + + + + +=back + +=head1 EXAMPLES + +=head2 Apache::GZip Revisited + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Apache::GZip Revisited"> + + + +=head2 Working with Net::FTP + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Compressed files and Net::FTP"> + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +For RFC 1950, 1951 and 1952 see +F<http://www.faqs.org/rfcs/rfc1950.html>, +F<http://www.faqs.org/rfcs/rfc1951.html> and +F<http://www.faqs.org/rfcs/rfc1952.html> + +The I<zlib> compression library was written by Jean-loup Gailly +F<gzip@prep.ai.mit.edu> and Mark Adler F<madler@alumni.caltech.edu>. + +The primary site for the I<zlib> compression library is +F<http://www.zlib.org>. + +The primary site for gzip is F<http://www.gzip.org>. + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2010 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Zip.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Zip.pm new file mode 100755 index 00000000000..5e37d78f97d --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Zip.pm @@ -0,0 +1,1612 @@ +package IO::Compress::Zip ; + +use strict ; +use warnings; +use bytes; + +use IO::Compress::Base::Common 2.024 qw(:Status createSelfTiedObject); +use IO::Compress::RawDeflate 2.024 ; +use IO::Compress::Adapter::Deflate 2.024 ; +use IO::Compress::Adapter::Identity 2.024 ; +use IO::Compress::Zlib::Extra 2.024 ; +use IO::Compress::Zip::Constants 2.024 ; + + +use Compress::Raw::Zlib 2.024 qw(crc32) ; +BEGIN +{ + eval { require IO::Compress::Adapter::Bzip2 ; + import IO::Compress::Adapter::Bzip2 2.024 ; + require IO::Compress::Bzip2 ; + import IO::Compress::Bzip2 2.024 ; + } ; +# eval { require IO::Compress::Adapter::Lzma ; +# import IO::Compress::Adapter::Lzma 2.020 ; +# require IO::Compress::Lzma ; +# import IO::Compress::Lzma 2.024 ; +# } ; +} + + +require Exporter ; + +our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS, $ZipError); + +$VERSION = '2.024'; +$ZipError = ''; + +@ISA = qw(Exporter IO::Compress::RawDeflate); +@EXPORT_OK = qw( $ZipError zip ) ; +%EXPORT_TAGS = %IO::Compress::RawDeflate::DEFLATE_CONSTANTS ; +push @{ $EXPORT_TAGS{all} }, @EXPORT_OK ; + +$EXPORT_TAGS{zip_method} = [qw( ZIP_CM_STORE ZIP_CM_DEFLATE ZIP_CM_BZIP2 ZIP_CM_LZMA)]; +push @{ $EXPORT_TAGS{all} }, @{ $EXPORT_TAGS{zip_method} }; + +Exporter::export_ok_tags('all'); + +sub new +{ + my $class = shift ; + + my $obj = createSelfTiedObject($class, \$ZipError); + $obj->_create(undef, @_); +} + +sub zip +{ + my $obj = createSelfTiedObject(undef, \$ZipError); + return $obj->_def(@_); +} + +sub mkComp +{ + my $self = shift ; + my $got = shift ; + + my ($obj, $errstr, $errno) ; + + if (*$self->{ZipData}{Method} == ZIP_CM_STORE) { + ($obj, $errstr, $errno) = IO::Compress::Adapter::Identity::mkCompObject( + $got->value('Level'), + $got->value('Strategy') + ); + *$self->{ZipData}{CRC32} = crc32(undef); + } + elsif (*$self->{ZipData}{Method} == ZIP_CM_DEFLATE) { + ($obj, $errstr, $errno) = IO::Compress::Adapter::Deflate::mkCompObject( + $got->value('CRC32'), + $got->value('Adler32'), + $got->value('Level'), + $got->value('Strategy') + ); + } + elsif (*$self->{ZipData}{Method} == ZIP_CM_BZIP2) { + ($obj, $errstr, $errno) = IO::Compress::Adapter::Bzip2::mkCompObject( + $got->value('BlockSize100K'), + $got->value('WorkFactor'), + $got->value('Verbosity') + ); + *$self->{ZipData}{CRC32} = crc32(undef); + } +# elsif (*$self->{ZipData}{Method} == ZIP_CM_LZMA) { +# ($obj, $errstr, $errno) = IO::Compress::Adapter::Lzma::mkCompObject(); +# *$self->{ZipData}{CRC32} = crc32(undef); +# } + + return $self->saveErrorString(undef, $errstr, $errno) + if ! defined $obj; + + if (! defined *$self->{ZipData}{SizesOffset}) { + *$self->{ZipData}{SizesOffset} = 0; + *$self->{ZipData}{Offset} = new U64 ; + } + + *$self->{ZipData}{AnyZip64} = 0 + if ! defined *$self->{ZipData}{AnyZip64} ; + + return $obj; +} + +sub reset +{ + my $self = shift ; + + *$self->{Compress}->reset(); + *$self->{ZipData}{CRC32} = Compress::Raw::Zlib::crc32(''); + + return STATUS_OK; +} + +sub filterUncompressed +{ + my $self = shift ; + + if (*$self->{ZipData}{Method} == ZIP_CM_DEFLATE) { + *$self->{ZipData}{CRC32} = *$self->{Compress}->crc32(); + } + else { + *$self->{ZipData}{CRC32} = crc32(${$_[0]}, *$self->{ZipData}{CRC32}); + + } +} + +sub mkHeader +{ + my $self = shift; + my $param = shift ; + + + *$self->{ZipData}{LocalHdrOffset} = U64::clone(*$self->{ZipData}{Offset}); + + my $filename = ''; + $filename = $param->value('Name') || ''; + + my $comment = ''; + $comment = $param->value('Comment') || ''; + + my $hdr = ''; + + my $time = _unixToDosTime($param->value('Time')); + + my $extra = ''; + my $ctlExtra = ''; + my $empty = 0; + my $osCode = $param->value('OS_Code') ; + my $extFileAttr = 0 ; + + # This code assumes Unix. + $extFileAttr = 0666 << 16 + if $osCode == ZIP_OS_CODE_UNIX ; + + if (*$self->{ZipData}{Zip64}) { + $empty = 0xFFFFFFFF; + + my $x = ''; + $x .= pack "V V", 0, 0 ; # uncompressedLength + $x .= pack "V V", 0, 0 ; # compressedLength + $extra .= IO::Compress::Zlib::Extra::mkSubField(ZIP_EXTRA_ID_ZIP64, $x); + } + + if (! $param->value('Minimal')) { + if (defined $param->value('exTime')) + { + $extra .= mkExtendedTime($param->value('MTime'), + $param->value('ATime'), + $param->value('CTime')); + + $ctlExtra .= mkExtendedTime($param->value('MTime')); + } + + if ( $param->value('UID') && $osCode == ZIP_OS_CODE_UNIX) + { + $extra .= mkUnix2Extra( $param->value('UID'), $param->value('GID')); + $ctlExtra .= mkUnix2Extra(); + } + + $extFileAttr = $param->value('ExtAttr') + if defined $param->value('ExtAttr') ; + + $extra .= $param->value('ExtraFieldLocal') + if defined $param->value('ExtraFieldLocal'); + + $ctlExtra .= $param->value('ExtraFieldCentral') + if defined $param->value('ExtraFieldCentral'); + } + + my $gpFlag = 0 ; + $gpFlag |= ZIP_GP_FLAG_STREAMING_MASK + if *$self->{ZipData}{Stream} ; + + my $method = *$self->{ZipData}{Method} ; + + my $version = $ZIP_CM_MIN_VERSIONS{$method}; + $version = ZIP64_MIN_VERSION + if ZIP64_MIN_VERSION > $version && *$self->{ZipData}{Zip64}; + my $madeBy = ($param->value('OS_Code') << 8) + $version; + my $extract = $version; + + *$self->{ZipData}{Version} = $version; + *$self->{ZipData}{MadeBy} = $madeBy; + + my $ifa = 0; + $ifa |= ZIP_IFA_TEXT_MASK + if $param->value('TextFlag'); + + $hdr .= pack "V", ZIP_LOCAL_HDR_SIG ; # signature + $hdr .= pack 'v', $extract ; # extract Version & OS + $hdr .= pack 'v', $gpFlag ; # general purpose flag (set streaming mode) + $hdr .= pack 'v', $method ; # compression method (deflate) + $hdr .= pack 'V', $time ; # last mod date/time + $hdr .= pack 'V', 0 ; # crc32 - 0 when streaming + $hdr .= pack 'V', $empty ; # compressed length - 0 when streaming + $hdr .= pack 'V', $empty ; # uncompressed length - 0 when streaming + $hdr .= pack 'v', length $filename ; # filename length + $hdr .= pack 'v', length $extra ; # extra length + + $hdr .= $filename ; + + # Remember the offset for the compressed & uncompressed lengths in the + # local header. + if (*$self->{ZipData}{Zip64}) { + *$self->{ZipData}{SizesOffset} = *$self->{ZipData}{Offset}->get64bit() + + length($hdr) + 4 ; + } + else { + *$self->{ZipData}{SizesOffset} = *$self->{ZipData}{Offset}->get64bit() + + 18; + } + + $hdr .= $extra ; + + + my $ctl = ''; + + $ctl .= pack "V", ZIP_CENTRAL_HDR_SIG ; # signature + $ctl .= pack 'v', $madeBy ; # version made by + $ctl .= pack 'v', $extract ; # extract Version + $ctl .= pack 'v', $gpFlag ; # general purpose flag (streaming mode) + $ctl .= pack 'v', $method ; # compression method (deflate) + $ctl .= pack 'V', $time ; # last mod date/time + $ctl .= pack 'V', 0 ; # crc32 + $ctl .= pack 'V', $empty ; # compressed length + $ctl .= pack 'V', $empty ; # uncompressed length + $ctl .= pack 'v', length $filename ; # filename length + + *$self->{ZipData}{ExtraOffset} = length $ctl; + *$self->{ZipData}{ExtraSize} = length $ctlExtra ; + + $ctl .= pack 'v', length $ctlExtra ; # extra length + $ctl .= pack 'v', length $comment ; # file comment length + $ctl .= pack 'v', 0 ; # disk number start + $ctl .= pack 'v', $ifa ; # internal file attributes + $ctl .= pack 'V', $extFileAttr ; # external file attributes + + # offset to local hdr + if (*$self->{ZipData}{LocalHdrOffset}->is64bit() ) { + $ctl .= pack 'V', 0xFFFFFFFF ; + } + else { + $ctl .= *$self->{ZipData}{LocalHdrOffset}->getPacked_V32() ; + } + + $ctl .= $filename ; + $ctl .= $ctlExtra ; + $ctl .= $comment ; + + *$self->{ZipData}{Offset}->add(length $hdr) ; + + *$self->{ZipData}{CentralHeader} = $ctl; + + return $hdr; +} + +sub mkTrailer +{ + my $self = shift ; + + my $crc32 ; + if (*$self->{ZipData}{Method} == ZIP_CM_DEFLATE) { + $crc32 = pack "V", *$self->{Compress}->crc32(); + } + else { + $crc32 = pack "V", *$self->{ZipData}{CRC32}; + } + + my $ctl = *$self->{ZipData}{CentralHeader} ; + + my $sizes ; + if (! *$self->{ZipData}{Zip64}) { + $sizes .= *$self->{CompSize}->getPacked_V32() ; # Compressed size + $sizes .= *$self->{UnCompSize}->getPacked_V32() ; # Uncompressed size + } + else { + $sizes .= *$self->{CompSize}->getPacked_V64() ; # Compressed size + $sizes .= *$self->{UnCompSize}->getPacked_V64() ; # Uncompressed size + } + + my $data = $crc32 . $sizes ; + + my $xtrasize = *$self->{UnCompSize}->getPacked_V64() ; # Uncompressed size + $xtrasize .= *$self->{CompSize}->getPacked_V64() ; # Compressed size + + my $hdr = ''; + + if (*$self->{ZipData}{Stream}) { + $hdr = pack "V", ZIP_DATA_HDR_SIG ; # signature + $hdr .= $data ; + } + else { + $self->writeAt(*$self->{ZipData}{LocalHdrOffset}->get64bit() + 14, $crc32) + or return undef; + $self->writeAt(*$self->{ZipData}{SizesOffset}, + *$self->{ZipData}{Zip64} ? $xtrasize : $sizes) + or return undef; + } + + # Central Header Record/Zip64 extended field + + substr($ctl, 16, length $crc32) = $crc32 ; + + my $x = ''; + + # uncompressed length + if (*$self->{UnCompSize}->is64bit() ) { + $x .= *$self->{UnCompSize}->getPacked_V64() ; + } else { + substr($ctl, 24, 4) = *$self->{UnCompSize}->getPacked_V32() ; + } + + # compressed length + if (*$self->{CompSize}->is64bit() ) { + $x .= *$self->{CompSize}->getPacked_V64() ; + } else { + substr($ctl, 20, 4) = *$self->{CompSize}->getPacked_V32() ; + } + + # Local Header offset + $x .= *$self->{ZipData}{LocalHdrOffset}->getPacked_V64() + if *$self->{ZipData}{LocalHdrOffset}->is64bit() ; + + # disk no - always zero, so don't need it + #$x .= pack "V", 0 ; + + if (length $x) { + my $xtra = IO::Compress::Zlib::Extra::mkSubField(ZIP_EXTRA_ID_ZIP64, $x); + $ctl .= $xtra ; + substr($ctl, *$self->{ZipData}{ExtraOffset}, 2) = + pack 'v', *$self->{ZipData}{ExtraSize} + length $xtra; + + *$self->{ZipData}{AnyZip64} = 1; + } + + *$self->{ZipData}{Offset}->add(length($hdr)); + *$self->{ZipData}{Offset}->add( *$self->{CompSize} ); + push @{ *$self->{ZipData}{CentralDir} }, $ctl ; + + return $hdr; +} + +sub mkFinalTrailer +{ + my $self = shift ; + + my $comment = ''; + $comment = *$self->{ZipData}{ZipComment} ; + + my $cd_offset = *$self->{ZipData}{Offset}->get32bit() ; # offset to start central dir + + my $entries = @{ *$self->{ZipData}{CentralDir} }; + my $cd = join '', @{ *$self->{ZipData}{CentralDir} }; + my $cd_len = length $cd ; + + my $z64e = ''; + + if ( *$self->{ZipData}{AnyZip64} ) { + + my $v = *$self->{ZipData}{Version} ; + my $mb = *$self->{ZipData}{MadeBy} ; + $z64e .= pack 'v', $mb ; # Version made by + $z64e .= pack 'v', $v ; # Version to extract + $z64e .= pack 'V', 0 ; # number of disk + $z64e .= pack 'V', 0 ; # number of disk with central dir + $z64e .= U64::pack_V64 $entries ; # entries in central dir on this disk + $z64e .= U64::pack_V64 $entries ; # entries in central dir + $z64e .= U64::pack_V64 $cd_len ; # size of central dir + $z64e .= *$self->{ZipData}{Offset}->getPacked_V64() ; # offset to start central dir + + $z64e = pack("V", ZIP64_END_CENTRAL_REC_HDR_SIG) # signature + . U64::pack_V64(length $z64e) + . $z64e ; + + *$self->{ZipData}{Offset}->add(length $cd) ; + + $z64e .= pack "V", ZIP64_END_CENTRAL_LOC_HDR_SIG; # signature + $z64e .= pack 'V', 0 ; # number of disk with central dir + $z64e .= *$self->{ZipData}{Offset}->getPacked_V64() ; # offset to end zip64 central dir + $z64e .= pack 'V', 1 ; # Total number of disks + + $cd_offset = 0xFFFFFFFF ; + $cd_len = 0xFFFFFFFF if $cd_len >= 0xFFFFFFFF ; + $entries = 0xFFFF if $entries >= 0xFFFF ; + } + + my $ecd = ''; + $ecd .= pack "V", ZIP_END_CENTRAL_HDR_SIG ; # signature + $ecd .= pack 'v', 0 ; # number of disk + $ecd .= pack 'v', 0 ; # number of disk with central dir + $ecd .= pack 'v', $entries ; # entries in central dir on this disk + $ecd .= pack 'v', $entries ; # entries in central dir + $ecd .= pack 'V', $cd_len ; # size of central dir + $ecd .= pack 'V', $cd_offset ; # offset to start central dir + $ecd .= pack 'v', length $comment ; # zipfile comment length + $ecd .= $comment; + + return $cd . $z64e . $ecd ; +} + +sub ckParams +{ + my $self = shift ; + my $got = shift; + + $got->value('CRC32' => 1); + + if (! $got->parsed('Time') ) { + # Modification time defaults to now. + $got->value('Time' => time) ; + } + + if ($got->parsed('exTime') ) { + my $timeRef = $got->value('exTime'); + if ( defined $timeRef) { + return $self->saveErrorString(undef, "exTime not a 3-element array ref") + if ref $timeRef ne 'ARRAY' || @$timeRef != 3; + } + + $got->value("MTime", $timeRef->[1]); + $got->value("ATime", $timeRef->[0]); + $got->value("CTime", $timeRef->[2]); + } + + # Unix2 Extended Attribute + if ($got->parsed('exUnix2') ) { + my $timeRef = $got->value('exUnix2'); + if ( defined $timeRef) { + return $self->saveErrorString(undef, "exUnix2 not a 2-element array ref") + if ref $timeRef ne 'ARRAY' || @$timeRef != 2; + } + + $got->value("UID", $timeRef->[0]); + $got->value("GID", $timeRef->[1]); + } + + *$self->{ZipData}{AnyZip64} = 1 + if $got->value('Zip64'); + *$self->{ZipData}{Zip64} = $got->value('Zip64'); + *$self->{ZipData}{Stream} = $got->value('Stream'); + + my $method = $got->value('Method'); + return $self->saveErrorString(undef, "Unknown Method '$method'") + if ! defined $ZIP_CM_MIN_VERSIONS{$method}; + + return $self->saveErrorString(undef, "Bzip2 not available") + if $method == ZIP_CM_BZIP2 and + ! defined $IO::Compress::Adapter::Bzip2::VERSION; + + return $self->saveErrorString(undef, "Lzma not available") + if $method == ZIP_CM_LZMA ; + #and + #! defined $IO::Compress::Adapter::Lzma::VERSION; + + *$self->{ZipData}{Method} = $method; + + *$self->{ZipData}{ZipComment} = $got->value('ZipComment') ; + + for my $name (qw( ExtraFieldLocal ExtraFieldCentral )) + { + my $data = $got->value($name) ; + if (defined $data) { + my $bad = IO::Compress::Zlib::Extra::parseExtraField($data, 1, 0) ; + return $self->saveErrorString(undef, "Error with $name Parameter: $bad") + if $bad ; + + $got->value($name, $data) ; + } + } + + return undef + if defined $IO::Compress::Bzip2::VERSION + and ! IO::Compress::Bzip2::ckParams($self, $got); + + return 1 ; +} + +#sub newHeader +#{ +# my $self = shift ; +# +# return $self->mkHeader(*$self->{Got}); +#} + +sub getExtraParams +{ + my $self = shift ; + + use IO::Compress::Base::Common 2.024 qw(:Parse); + use Compress::Raw::Zlib 2.024 qw(Z_DEFLATED Z_DEFAULT_COMPRESSION Z_DEFAULT_STRATEGY); + + my @Bzip2 = (); + + @Bzip2 = IO::Compress::Bzip2::getExtraParams($self) + if defined $IO::Compress::Bzip2::VERSION; + + return ( + # zlib behaviour + $self->getZlibParams(), + + 'Stream' => [1, 1, Parse_boolean, 1], + #'Store' => [0, 1, Parse_boolean, 0], + 'Method' => [0, 1, Parse_unsigned, ZIP_CM_DEFLATE], + +# # Zip header fields + 'Minimal' => [0, 1, Parse_boolean, 0], + 'Zip64' => [0, 1, Parse_boolean, 0], + 'Comment' => [0, 1, Parse_any, ''], + 'ZipComment'=> [0, 1, Parse_any, ''], + 'Name' => [0, 1, Parse_any, ''], + 'Time' => [0, 1, Parse_any, undef], + 'exTime' => [0, 1, Parse_any, undef], + 'exUnix2' => [0, 1, Parse_any, undef], + 'ExtAttr' => [0, 1, Parse_any, 0], + 'OS_Code' => [0, 1, Parse_unsigned, $Compress::Raw::Zlib::gzip_os_code], + + 'TextFlag' => [0, 1, Parse_boolean, 0], + 'ExtraFieldLocal' => [0, 1, Parse_any, undef], + 'ExtraFieldCentral'=> [0, 1, Parse_any, undef], + + @Bzip2, + ); +} + +sub getInverseClass +{ + return ('IO::Uncompress::Unzip', + \$IO::Uncompress::Unzip::UnzipError); +} + +sub getFileInfo +{ + my $self = shift ; + my $params = shift; + my $filename = shift ; + + my ($mode, $uid, $gid, $atime, $mtime, $ctime) + = (stat($filename))[2, 4,5, 8,9,10] ; + + $params->value('Name' => $filename) + if ! $params->parsed('Name') ; + + $params->value('Time' => $mtime) + if ! $params->parsed('Time') ; + + if ( ! $params->parsed('exTime')) + { + $params->value('MTime' => $mtime) ; + $params->value('ATime' => $atime) ; + $params->value('CTime' => undef) ; # No Creation time + $params->value("exTime", [$mtime, $atime, undef]); + } + + # NOTE - Unix specific code alert + $params->value('ExtAttr' => $mode << 16) + if ! $params->parsed('ExtAttr'); + + $params->value('UID' => $uid) ; + $params->value('GID' => $gid) ; + +} + +sub mkExtendedTime +{ + # order expected is m, a, c + + my $times = ''; + my $bit = 1 ; + my $flags = 0; + + for my $time (@_) + { + if (defined $time) + { + $flags |= $bit; + $times .= pack("V", $time); + } + + $bit <<= 1 ; + } + + return IO::Compress::Zlib::Extra::mkSubField(ZIP_EXTRA_ID_EXT_TIMESTAMP, + pack("C", $flags) . $times); +} + +sub mkUnix2Extra +{ + my $ids = ''; + for my $id (@_) + { + $ids .= pack("v", $id); + } + + return IO::Compress::Zlib::Extra::mkSubField(ZIP_EXTRA_ID_INFO_ZIP_UNIX2, + $ids); +} + + +# from Archive::Zip +sub _unixToDosTime # Archive::Zip::Member +{ + my $time_t = shift; + # TODO - add something to cope with unix time < 1980 + my ( $sec, $min, $hour, $mday, $mon, $year ) = localtime($time_t); + my $dt = 0; + $dt += ( $sec >> 1 ); + $dt += ( $min << 5 ); + $dt += ( $hour << 11 ); + $dt += ( $mday << 16 ); + $dt += ( ( $mon + 1 ) << 21 ); + $dt += ( ( $year - 80 ) << 25 ); + return $dt; +} + +1; + +__END__ + +=head1 NAME + +IO::Compress::Zip - Write zip files/buffers + + + +=head1 SYNOPSIS + + use IO::Compress::Zip qw(zip $ZipError) ; + + my $status = zip $input => $output [,OPTS] + or die "zip failed: $ZipError\n"; + + my $z = new IO::Compress::Zip $output [,OPTS] + or die "zip failed: $ZipError\n"; + + $z->print($string); + $z->printf($format, $string); + $z->write($string); + $z->syswrite($string [, $length, $offset]); + $z->flush(); + $z->tell(); + $z->eof(); + $z->seek($position, $whence); + $z->binmode(); + $z->fileno(); + $z->opened(); + $z->autoflush(); + $z->input_line_number(); + $z->newStream( [OPTS] ); + + $z->deflateParams(); + + $z->close() ; + + $ZipError ; + + # IO::File mode + + print $z $string; + printf $z $format, $string; + tell $z + eof $z + seek $z, $position, $whence + binmode $z + fileno $z + close $z ; + + +=head1 DESCRIPTION + +This module provides a Perl interface that allows writing zip +compressed data to files or buffer. + +The primary purpose of this module is to provide streaming write access to +zip files and buffers. It is not a general-purpose file archiver. If that +is what you want, check out C<Archive::Zip>. + +At present three compression methods are supported by IO::Compress::Zip, +namely Store (no compression at all), Deflate and Bzip2. + +Note that to create Bzip2 content, the module C<IO::Compress::Bzip2> must +be installed. + +For reading zip files/buffers, see the companion module +L<IO::Uncompress::Unzip|IO::Uncompress::Unzip>. + +=head1 Functional Interface + +A top-level function, C<zip>, is provided to carry out +"one-shot" compression between buffers and/or files. For finer +control over the compression process, see the L</"OO Interface"> +section. + + use IO::Compress::Zip qw(zip $ZipError) ; + + zip $input => $output [,OPTS] + or die "zip failed: $ZipError\n"; + +The functional interface needs Perl5.005 or better. + +=head2 zip $input => $output [, OPTS] + +C<zip> expects at least two parameters, C<$input> and C<$output>. + +=head3 The C<$input> parameter + +The parameter, C<$input>, is used to define the source of +the uncompressed data. + +It can take one of the following forms: + +=over 5 + +=item A filename + +If the C<$input> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for reading and the input data +will be read from it. + +=item A filehandle + +If the C<$input> parameter is a filehandle, the input data will be +read from it. +The string '-' can be used as an alias for standard input. + +=item A scalar reference + +If C<$input> is a scalar reference, the input data will be read +from C<$$input>. + +=item An array reference + +If C<$input> is an array reference, each element in the array must be a +filename. + +The input data will be read from each file in turn. + +The complete array will be walked to ensure that it only +contains valid filenames before any data is compressed. + +=item An Input FileGlob string + +If C<$input> is a string that is delimited by the characters "<" and ">" +C<zip> will assume that it is an I<input fileglob string>. The +input is the list of files that match the fileglob. + +If the fileglob does not match any files ... + +See L<File::GlobMapper|File::GlobMapper> for more details. + +=back + +If the C<$input> parameter is any other type, C<undef> will be returned. + +In addition, if C<$input> is a simple filename, the default values for +the C<Name>, C<Time>, C<ExtAttr> and C<exTime> options will be sourced from that file. + +If you do not want to use these defaults they can be overridden by +explicitly setting the C<Name>, C<Time>, C<ExtAttr> and C<exTime> options or by setting the +C<Minimal> parameter. + +=head3 The C<$output> parameter + +The parameter C<$output> is used to control the destination of the +compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed +data will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data +will be written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be +stored in C<$$output>. + +=item An Array Reference + +If C<$output> is an array reference, the compressed data will be +pushed onto the array. + +=item An Output FileGlob + +If C<$output> is a string that is delimited by the characters "<" and ">" +C<zip> will assume that it is an I<output fileglob string>. The +output is the list of files that match the fileglob. + +When C<$output> is an fileglob string, C<$input> must also be a fileglob +string. Anything else is an error. + +=back + +If the C<$output> parameter is any other type, C<undef> will be returned. + +=head2 Notes + +When C<$input> maps to multiple files/buffers and C<$output> is a single +file/buffer the input files/buffers will each be stored +in C<$output> as a distinct entry. + +=head2 Optional Parameters + +Unless specified below, the optional parameters for C<zip>, +C<OPTS>, are the same as those used with the OO interface defined in the +L</"Constructor Options"> section below. + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option applies to any input or output data streams to +C<zip> that are filehandles. + +If C<AutoClose> is specified, and the value is true, it will result in all +input and/or output filehandles being closed once C<zip> has +completed. + +This parameter defaults to 0. + +=item C<< BinModeIn => 0|1 >> + +When reading from a file or filehandle, set C<binmode> before reading. + +Defaults to 0. + +=item C<< Append => 0|1 >> + +The behaviour of this option is dependent on the type of output data +stream. + +=over 5 + +=item * A Buffer + +If C<Append> is enabled, all compressed data will be append to the end of +the output buffer. Otherwise the output buffer will be cleared before any +compressed data is written to it. + +=item * A Filename + +If C<Append> is enabled, the file will be opened in append mode. Otherwise +the contents of the file, if any, will be truncated before any compressed +data is written to it. + +=item * A Filehandle + +If C<Append> is enabled, the filehandle will be positioned to the end of +the file via a call to C<seek> before any compressed data is +written to it. Otherwise the file pointer will not be moved. + +=back + +When C<Append> is specified, and set to true, it will I<append> all compressed +data to the output data stream. + +So when the output is a filehandle it will carry out a seek to the eof +before writing any compressed data. If the output is a filename, it will be opened for +appending. If the output is a buffer, all compressed data will be appened to +the existing buffer. + +Conversely when C<Append> is not specified, or it is present and is set to +false, it will operate as follows. + +When the output is a filename, it will truncate the contents of the file +before writing any compressed data. If the output is a filehandle +its position will not be changed. If the output is a buffer, it will be +wiped before any compressed data is output. + +Defaults to 0. + +=back + +=head2 Examples + +To read the contents of the file C<file1.txt> and write the compressed +data to the file C<file1.txt.zip>. + + use strict ; + use warnings ; + use IO::Compress::Zip qw(zip $ZipError) ; + + my $input = "file1.txt"; + zip $input => "$input.zip" + or die "zip failed: $ZipError\n"; + +To read from an existing Perl filehandle, C<$input>, and write the +compressed data to a buffer, C<$buffer>. + + use strict ; + use warnings ; + use IO::Compress::Zip qw(zip $ZipError) ; + use IO::File ; + + my $input = new IO::File "<file1.txt" + or die "Cannot open 'file1.txt': $!\n" ; + my $buffer ; + zip $input => \$buffer + or die "zip failed: $ZipError\n"; + +To compress all files in the directory "/my/home" that match "*.txt" +and store the compressed data in the same directory + + use strict ; + use warnings ; + use IO::Compress::Zip qw(zip $ZipError) ; + + zip '</my/home/*.txt>' => '<*.zip>' + or die "zip failed: $ZipError\n"; + +and if you want to compress each file one at a time, this will do the trick + + use strict ; + use warnings ; + use IO::Compress::Zip qw(zip $ZipError) ; + + for my $input ( glob "/my/home/*.txt" ) + { + my $output = "$input.zip" ; + zip $input => $output + or die "Error compressing '$input': $ZipError\n"; + } + +=head1 OO Interface + +=head2 Constructor + +The format of the constructor for C<IO::Compress::Zip> is shown below + + my $z = new IO::Compress::Zip $output [,OPTS] + or die "IO::Compress::Zip failed: $ZipError\n"; + +It returns an C<IO::Compress::Zip> object on success and undef on failure. +The variable C<$ZipError> will contain an error message on failure. + +If you are running Perl 5.005 or better the object, C<$z>, returned from +IO::Compress::Zip can be used exactly like an L<IO::File|IO::File> filehandle. +This means that all normal output file operations can be carried out +with C<$z>. +For example, to write to a compressed file/buffer you can use either of +these forms + + $z->print("hello world\n"); + print $z "hello world\n"; + +The mandatory parameter C<$output> is used to control the destination +of the compressed data. This parameter can take one of these forms. + +=over 5 + +=item A filename + +If the C<$output> parameter is a simple scalar, it is assumed to be a +filename. This file will be opened for writing and the compressed data +will be written to it. + +=item A filehandle + +If the C<$output> parameter is a filehandle, the compressed data will be +written to it. +The string '-' can be used as an alias for standard output. + +=item A scalar reference + +If C<$output> is a scalar reference, the compressed data will be stored +in C<$$output>. + +=back + +If the C<$output> parameter is any other type, C<IO::Compress::Zip>::new will +return undef. + +=head2 Constructor Options + +C<OPTS> is any combination of the following options: + +=over 5 + +=item C<< AutoClose => 0|1 >> + +This option is only valid when the C<$output> parameter is a filehandle. If +specified, and the value is true, it will result in the C<$output> being +closed once either the C<close> method is called or the C<IO::Compress::Zip> +object is destroyed. + +This parameter defaults to 0. + +=item C<< Append => 0|1 >> + +Opens C<$output> in append mode. + +The behaviour of this option is dependent on the type of C<$output>. + +=over 5 + +=item * A Buffer + +If C<$output> is a buffer and C<Append> is enabled, all compressed data +will be append to the end of C<$output>. Otherwise C<$output> will be +cleared before any data is written to it. + +=item * A Filename + +If C<$output> is a filename and C<Append> is enabled, the file will be +opened in append mode. Otherwise the contents of the file, if any, will be +truncated before any compressed data is written to it. + +=item * A Filehandle + +If C<$output> is a filehandle, the file pointer will be positioned to the +end of the file via a call to C<seek> before any compressed data is written +to it. Otherwise the file pointer will not be moved. + +=back + +This parameter defaults to 0. + +=item C<< Name => $string >> + +Stores the contents of C<$string> in the zip filename header field. If +C<Name> is not specified, no zip filename field will be created. + +=item C<< Time => $number >> + +Sets the last modified time field in the zip header to $number. + +This field defaults to the time the C<IO::Compress::Zip> object was created +if this option is not specified. + +=item C<< ExtAttr => $attr >> + +This option controls the "external file attributes" field in the central +header of the zip file. This is a 4 byte field. + +If you are running a Unix derivative this value defaults to + + 0666 << 16 + +This should allow read/write access to any files that are extracted from +the zip file/buffer. + +For all other systems it defaults to 0. + +=item C<< exTime => [$atime, $mtime, $ctime] >> + +This option expects an array reference with exactly three elements: +C<$atime>, C<mtime> and C<$ctime>. These correspond to the last access +time, last modification time and creation time respectively. + +It uses these values to set the extended timestamp field (ID is "UT") in +the local zip header using the three values, $atime, $mtime, $ctime. In +addition it sets the extended timestamp field in the central zip header +using C<$mtime>. + +If any of the three values is C<undef> that time value will not be used. +So, for example, to set only the C<$mtime> you would use this + + exTime => [undef, $mtime, undef] + +If the C<Minimal> option is set to true, this option will be ignored. + +By default no extended time field is created. + +=item C<< exUnix2 => [$uid, $gid] >> + +This option expects an array reference with exactly two elements: C<$uid> +and C<$gid>. These values correspond to the numeric user ID and group ID +of the owner of the files respectively. + +When the C<exUnix2> option is present it will trigger the creation of a +Unix2 extra field (ID is "Ux") in the local zip. This will be populated +with C<$uid> and C<$gid>. In addition an empty Unix2 extra field will also +be created in the central zip header + +If the C<Minimal> option is set to true, this option will be ignored. + +By default no Unix2 extra field is created. + +=item C<< Comment => $comment >> + +Stores the contents of C<$comment> in the Central File Header of +the zip file. + +By default, no comment field is written to the zip file. + +=item C<< ZipComment => $comment >> + +Stores the contents of C<$comment> in the End of Central Directory record +of the zip file. + +By default, no comment field is written to the zip file. + +=item C<< Method => $method >> + +Controls which compression method is used. At present three compression +methods are supported, namely Store (no compression at all), Deflate and +Bzip2. + +The symbols, ZIP_CM_STORE, ZIP_CM_DEFLATE and ZIP_CM_BZIP2 are used to +select the compression method. + +These constants are not imported by C<IO::Compress::Zip> by default. + + use IO::Compress::Zip qw(:zip_method); + use IO::Compress::Zip qw(:constants); + use IO::Compress::Zip qw(:all); + +Note that to create Bzip2 content, the module C<IO::Compress::Bzip2> must +be installed. A fatal error will be thrown if you attempt to create Bzip2 +content when C<IO::Compress::Bzip2> is not available. + +The default method is ZIP_CM_DEFLATE. + +=item C<< Stream => 0|1 >> + +This option controls whether the zip file/buffer output is created in +streaming mode. + +Note that when outputting to a file with streaming mode disabled (C<Stream> +is 0), the output file must be seekable. + +The default is 1. + +=item C<< Zip64 => 0|1 >> + +Create a Zip64 zip file/buffer. This option should only be used if you want +to store files larger than 4 Gig. + +If you intend to manipulate the Zip64 zip files created with this module +using an external zip/unzip make sure that it supports Zip64. + +In particular, if you are using Info-Zip you need to have zip version 3.x +or better to update a Zip64 archive and unzip version 6.x to read a zip64 +archive. + +The default is 0. + +=item C<< TextFlag => 0|1 >> + +This parameter controls the setting of a bit in the zip central header. It +is used to signal that the data stored in the zip file/buffer is probably +text. + +The default is 0. + +=item C<< ExtraFieldLocal => $data >> +=item C<< ExtraFieldCentral => $data >> + +The C<ExtraFieldLocal> option is used to store additional metadata in the +local header for the zip file/buffer. The C<ExtraFieldCentral> does the +same for the matching central header. + +An extra field consists of zero or more subfields. Each subfield consists +of a two byte header followed by the subfield data. + +The list of subfields can be supplied in any of the following formats + + ExtraFieldLocal => [$id1, $data1, + $id2, $data2, + ... + ] + + ExtraFieldLocal => [ [$id1 => $data1], + [$id2 => $data2], + ... + ] + + ExtraFieldLocal => { $id1 => $data1, + $id2 => $data2, + ... + } + +Where C<$id1>, C<$id2> are two byte subfield ID's. + +If you use the hash syntax, you have no control over the order in which +the ExtraSubFields are stored, plus you cannot have SubFields with +duplicate ID. + +Alternatively the list of subfields can by supplied as a scalar, thus + + ExtraField => $rawdata + +The Extended Time field (ID "UT"), set using the C<exTime> option, and the +Unix2 extra field (ID "Ux), set using the C<exUnix2> option, are examples +of extra fields. + +If the C<Minimal> option is set to true, this option will be ignored. + +The maximum size of an extra field 65535 bytes. + +=item C<< Minimal => 1|0 >> + +If specified, this option will disable the creation of all extra fields +in the zip local and central headers. So the C<exTime>, C<exUnix2>, +C<ExtraFieldLocal> and C<ExtraFieldCentral> options will be ignored. + +This parameter defaults to 0. + +=item C<< BlockSize100K => number >> + +Specify the number of 100K blocks bzip2 uses during compression. + +Valid values are from 1 to 9, where 9 is best compression. + +This option is only valid if the C<Method> is ZIP_CM_BZIP2. It is ignored +otherwise. + +The default is 1. + +=item C<< WorkFactor => number >> + +Specifies how much effort bzip2 should take before resorting to a slower +fallback compression algorithm. + +Valid values range from 0 to 250, where 0 means use the default value 30. + +This option is only valid if the C<Method> is ZIP_CM_BZIP2. It is ignored +otherwise. + +The default is 0. + +=item -Level + +Defines the compression level used by zlib. The value should either be +a number between 0 and 9 (0 means no compression and 9 is maximum +compression), or one of the symbolic constants defined below. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +The default is Z_DEFAULT_COMPRESSION. + +Note, these constants are not imported by C<IO::Compress::Zip> by default. + + use IO::Compress::Zip qw(:strategy); + use IO::Compress::Zip qw(:constants); + use IO::Compress::Zip qw(:all); + +=item -Strategy + +Defines the strategy used to tune the compression. Use one of the symbolic +constants defined below. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + +The default is Z_DEFAULT_STRATEGY. + +=item C<< Strict => 0|1 >> + +This is a placeholder option. + +=back + +=head2 Examples + +TODO + +=head1 Methods + +=head2 print + +Usage is + + $z->print($data) + print $z $data + +Compresses and outputs the contents of the C<$data> parameter. This +has the same behaviour as the C<print> built-in. + +Returns true if successful. + +=head2 printf + +Usage is + + $z->printf($format, $data) + printf $z $format, $data + +Compresses and outputs the contents of the C<$data> parameter. + +Returns true if successful. + +=head2 syswrite + +Usage is + + $z->syswrite $data + $z->syswrite $data, $length + $z->syswrite $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 write + +Usage is + + $z->write $data + $z->write $data, $length + $z->write $data, $length, $offset + +Compresses and outputs the contents of the C<$data> parameter. + +Returns the number of uncompressed bytes written, or C<undef> if +unsuccessful. + +=head2 flush + +Usage is + + $z->flush; + $z->flush($flush_type); + +Flushes any pending compressed data to the output file/buffer. + +This method takes an optional parameter, C<$flush_type>, that controls +how the flushing will be carried out. By default the C<$flush_type> +used is C<Z_FINISH>. Other valid values for C<$flush_type> are +C<Z_NO_FLUSH>, C<Z_SYNC_FLUSH>, C<Z_FULL_FLUSH> and C<Z_BLOCK>. It is +strongly recommended that you only set the C<flush_type> parameter if +you fully understand the implications of what it does - overuse of C<flush> +can seriously degrade the level of compression achieved. See the C<zlib> +documentation for details. + +Returns true on success. + +=head2 tell + +Usage is + + $z->tell() + tell $z + +Returns the uncompressed file offset. + +=head2 eof + +Usage is + + $z->eof(); + eof($z); + +Returns true if the C<close> method has been called. + +=head2 seek + + $z->seek($position, $whence); + seek($z, $position, $whence); + +Provides a sub-set of the C<seek> functionality, with the restriction +that it is only legal to seek forward in the output file/buffer. +It is a fatal error to attempt to seek backward. + +Empty parts of the file/buffer will have NULL (0x00) bytes written to them. + +The C<$whence> parameter takes one the usual values, namely SEEK_SET, +SEEK_CUR or SEEK_END. + +Returns 1 on success, 0 on failure. + +=head2 binmode + +Usage is + + $z->binmode + binmode $z ; + +This is a noop provided for completeness. + +=head2 opened + + $z->opened() + +Returns true if the object currently refers to a opened file/buffer. + +=head2 autoflush + + my $prev = $z->autoflush() + my $prev = $z->autoflush(EXPR) + +If the C<$z> object is associated with a file or a filehandle, this method +returns the current autoflush setting for the underlying filehandle. If +C<EXPR> is present, and is non-zero, it will enable flushing after every +write/print operation. + +If C<$z> is associated with a buffer, this method has no effect and always +returns C<undef>. + +B<Note> that the special variable C<$|> B<cannot> be used to set or +retrieve the autoflush setting. + +=head2 input_line_number + + $z->input_line_number() + $z->input_line_number(EXPR) + +This method always returns C<undef> when compressing. + +=head2 fileno + + $z->fileno() + fileno($z) + +If the C<$z> object is associated with a file or a filehandle, C<fileno> +will return the underlying file descriptor. Once the C<close> method is +called C<fileno> will return C<undef>. + +If the C<$z> object is is associated with a buffer, this method will return +C<undef>. + +=head2 close + + $z->close() ; + close $z ; + +Flushes any pending compressed data and then closes the output file/buffer. + +For most versions of Perl this method will be automatically invoked if +the IO::Compress::Zip object is destroyed (either explicitly or by the +variable with the reference to the object going out of scope). The +exceptions are Perl versions 5.005 through 5.00504 and 5.8.0. In +these cases, the C<close> method will be called automatically, but +not until global destruction of all live objects when the program is +terminating. + +Therefore, if you want your scripts to be able to run on all versions +of Perl, you should call C<close> explicitly and not rely on automatic +closing. + +Returns true on success, otherwise 0. + +If the C<AutoClose> option has been enabled when the IO::Compress::Zip +object was created, and the object is associated with a file, the +underlying file will also be closed. + +=head2 newStream([OPTS]) + +Usage is + + $z->newStream( [OPTS] ) + +Closes the current compressed data stream and starts a new one. + +OPTS consists of any of the the options that are available when creating +the C<$z> object. + +See the L</"Constructor Options"> section for more details. + +=head2 deflateParams + +Usage is + + $z->deflateParams + +TODO + +=head1 Importing + +A number of symbolic constants are required by some methods in +C<IO::Compress::Zip>. None are imported by default. + +=over 5 + +=item :all + +Imports C<zip>, C<$ZipError> and all symbolic +constants that can be used by C<IO::Compress::Zip>. Same as doing this + + use IO::Compress::Zip qw(zip $ZipError :constants) ; + +=item :constants + +Import all symbolic constants. Same as doing this + + use IO::Compress::Zip qw(:flush :level :strategy :zip_method) ; + +=item :flush + +These symbolic constants are used by the C<flush> method. + + Z_NO_FLUSH + Z_PARTIAL_FLUSH + Z_SYNC_FLUSH + Z_FULL_FLUSH + Z_FINISH + Z_BLOCK + +=item :level + +These symbolic constants are used by the C<Level> option in the constructor. + + Z_NO_COMPRESSION + Z_BEST_SPEED + Z_BEST_COMPRESSION + Z_DEFAULT_COMPRESSION + +=item :strategy + +These symbolic constants are used by the C<Strategy> option in the constructor. + + Z_FILTERED + Z_HUFFMAN_ONLY + Z_RLE + Z_FIXED + Z_DEFAULT_STRATEGY + +=item :zip_method + +These symbolic constants are used by the C<Method> option in the +constructor. + + ZIP_CM_STORE + ZIP_CM_DEFLATE + ZIP_CM_BZIP2 + + + + +=back + +=head1 EXAMPLES + +=head2 Apache::GZip Revisited + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Apache::GZip Revisited"> + + + +=head2 Working with Net::FTP + +See L<IO::Compress::FAQ|IO::Compress::FAQ/"Compressed files and Net::FTP"> + +=head1 SEE ALSO + +L<Compress::Zlib>, L<IO::Compress::Gzip>, L<IO::Uncompress::Gunzip>, L<IO::Compress::Deflate>, L<IO::Uncompress::Inflate>, L<IO::Compress::RawDeflate>, L<IO::Uncompress::RawInflate>, L<IO::Compress::Bzip2>, L<IO::Uncompress::Bunzip2>, L<IO::Compress::Lzma>, L<IO::Uncompress::UnLzma>, L<IO::Compress::Xz>, L<IO::Uncompress::UnXz>, L<IO::Compress::Lzop>, L<IO::Uncompress::UnLzop>, L<IO::Compress::Lzf>, L<IO::Uncompress::UnLzf>, L<IO::Uncompress::AnyInflate>, L<IO::Uncompress::AnyUncompress> + +L<Compress::Zlib::FAQ|Compress::Zlib::FAQ> + +L<File::GlobMapper|File::GlobMapper>, L<Archive::Zip|Archive::Zip>, +L<Archive::Tar|Archive::Tar>, +L<IO::Zlib|IO::Zlib> + +For RFC 1950, 1951 and 1952 see +F<http://www.faqs.org/rfcs/rfc1950.html>, +F<http://www.faqs.org/rfcs/rfc1951.html> and +F<http://www.faqs.org/rfcs/rfc1952.html> + +The I<zlib> compression library was written by Jean-loup Gailly +F<gzip@prep.ai.mit.edu> and Mark Adler F<madler@alumni.caltech.edu>. + +The primary site for the I<zlib> compression library is +F<http://www.zlib.org>. + +The primary site for gzip is F<http://www.gzip.org>. + +=head1 AUTHOR + +This module was written by Paul Marquess, F<pmqs@cpan.org>. + +=head1 MODIFICATION HISTORY + +See the Changes file. + +=head1 COPYRIGHT AND LICENSE + +Copyright (c) 2005-2010 Paul Marquess. All rights reserved. + +This program is free software; you can redistribute it and/or +modify it under the same terms as Perl itself. + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Zip/Constants.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Zip/Constants.pm new file mode 100755 index 00000000000..c8cb95342a2 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Zip/Constants.pm @@ -0,0 +1,105 @@ +package IO::Compress::Zip::Constants; + +use strict ; +use warnings; + +require Exporter; + +our ($VERSION, @ISA, @EXPORT, %ZIP_CM_MIN_VERSIONS); + +$VERSION = '2.024'; + +@ISA = qw(Exporter); + +@EXPORT= qw( + + ZIP_CM_STORE + ZIP_CM_DEFLATE + ZIP_CM_BZIP2 + ZIP_CM_LZMA + ZIP_CM_PPMD + + ZIP_LOCAL_HDR_SIG + ZIP_DATA_HDR_SIG + ZIP_CENTRAL_HDR_SIG + ZIP_END_CENTRAL_HDR_SIG + ZIP64_END_CENTRAL_REC_HDR_SIG + ZIP64_END_CENTRAL_LOC_HDR_SIG + ZIP64_ARCHIVE_EXTRA_SIG + ZIP64_DIGITAL_SIGNATURE_SIG + + ZIP_GP_FLAG_ENCRYPTED_MASK + ZIP_GP_FLAG_STREAMING_MASK + ZIP_GP_FLAG_PATCHED_MASK + ZIP_GP_FLAG_STRONG_ENCRYPTED_MASK + ZIP_GP_FLAG_LZMA_EOS_PRESENT + ZIP_GP_FLAG_LANGUAGE_ENCODING + + ZIP_EXTRA_ID_ZIP64 + ZIP_EXTRA_ID_EXT_TIMESTAMP + ZIP_EXTRA_ID_INFO_ZIP_UNIX2 + ZIP_EXTRA_ID_INFO_ZIP_UNIXn + ZIP_EXTRA_ID_JAVA_EXE + + ZIP_OS_CODE_UNIX + ZIP_OS_CODE_DEFAULT + + ZIP_IFA_TEXT_MASK + + %ZIP_CM_MIN_VERSIONS + ZIP64_MIN_VERSION + + ); + +# Compression types supported +use constant ZIP_CM_STORE => 0 ; +use constant ZIP_CM_DEFLATE => 8 ; +use constant ZIP_CM_BZIP2 => 12 ; +use constant ZIP_CM_LZMA => 14 ; # Not Supported yet +use constant ZIP_CM_PPMD => 98 ; # Not Supported yet + +# General Purpose Flag +use constant ZIP_GP_FLAG_ENCRYPTED_MASK => (1 << 0) ; +use constant ZIP_GP_FLAG_STREAMING_MASK => (1 << 3) ; +use constant ZIP_GP_FLAG_PATCHED_MASK => (1 << 5) ; +use constant ZIP_GP_FLAG_STRONG_ENCRYPTED_MASK => (1 << 6) ; +use constant ZIP_GP_FLAG_LZMA_EOS_PRESENT => (1 << 1) ; +use constant ZIP_GP_FLAG_LANGUAGE_ENCODING => (1 << 11) ; + +# Internal File Attributes +use constant ZIP_IFA_TEXT_MASK => 1; + +# Signatures for each of the headers +use constant ZIP_LOCAL_HDR_SIG => 0x04034b50; +use constant ZIP_DATA_HDR_SIG => 0x08074b50; +use constant ZIP_CENTRAL_HDR_SIG => 0x02014b50; +use constant ZIP_END_CENTRAL_HDR_SIG => 0x06054b50; +use constant ZIP64_END_CENTRAL_REC_HDR_SIG => 0x06064b50; +use constant ZIP64_END_CENTRAL_LOC_HDR_SIG => 0x07064b50; +use constant ZIP64_ARCHIVE_EXTRA_SIG => 0x08064b50; +use constant ZIP64_DIGITAL_SIGNATURE_SIG => 0x05054b50; + +use constant ZIP_OS_CODE_UNIX => 3; +use constant ZIP_OS_CODE_DEFAULT => 3; + +# Extra Field ID's +use constant ZIP_EXTRA_ID_ZIP64 => pack "v", 1; +use constant ZIP_EXTRA_ID_EXT_TIMESTAMP => "UT"; +use constant ZIP_EXTRA_ID_INFO_ZIP_UNIX2 => "Ux"; +use constant ZIP_EXTRA_ID_INFO_ZIP_UNIXn => "ux"; +use constant ZIP_EXTRA_ID_JAVA_EXE => pack "v", 0xCAFE; + +use constant ZIP64_MIN_VERSION => 45; + +%ZIP_CM_MIN_VERSIONS = ( + ZIP_CM_STORE() => 20, + ZIP_CM_DEFLATE() => 20, + ZIP_CM_BZIP2() => 46, + ZIP_CM_LZMA() => 63, + ); + + +1; + +__END__ + diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Constants.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Constants.pm new file mode 100755 index 00000000000..10fcf345f63 --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Constants.pm @@ -0,0 +1,77 @@ + +package IO::Compress::Zlib::Constants ; + +use strict ; +use warnings; +use bytes; + +require Exporter; + +our ($VERSION, @ISA, @EXPORT); + +$VERSION = '2.024'; + +@ISA = qw(Exporter); + +@EXPORT= qw( + + ZLIB_HEADER_SIZE + ZLIB_TRAILER_SIZE + + ZLIB_CMF_CM_OFFSET + ZLIB_CMF_CM_BITS + ZLIB_CMF_CM_DEFLATED + + ZLIB_CMF_CINFO_OFFSET + ZLIB_CMF_CINFO_BITS + ZLIB_CMF_CINFO_MAX + + ZLIB_FLG_FCHECK_OFFSET + ZLIB_FLG_FCHECK_BITS + + ZLIB_FLG_FDICT_OFFSET + ZLIB_FLG_FDICT_BITS + + ZLIB_FLG_LEVEL_OFFSET + ZLIB_FLG_LEVEL_BITS + + ZLIB_FLG_LEVEL_FASTEST + ZLIB_FLG_LEVEL_FAST + ZLIB_FLG_LEVEL_DEFAULT + ZLIB_FLG_LEVEL_SLOWEST + + ZLIB_FDICT_SIZE + + ); + +# Constant names derived from RFC1950 + +use constant ZLIB_HEADER_SIZE => 2; +use constant ZLIB_TRAILER_SIZE => 4; + +use constant ZLIB_CMF_CM_OFFSET => 0; +use constant ZLIB_CMF_CM_BITS => 0xF ; # 0b1111 +use constant ZLIB_CMF_CM_DEFLATED => 8; + +use constant ZLIB_CMF_CINFO_OFFSET => 4; +use constant ZLIB_CMF_CINFO_BITS => 0xF ; # 0b1111; +use constant ZLIB_CMF_CINFO_MAX => 7; + +use constant ZLIB_FLG_FCHECK_OFFSET => 0; +use constant ZLIB_FLG_FCHECK_BITS => 0x1F ; # 0b11111; + +use constant ZLIB_FLG_FDICT_OFFSET => 5; +use constant ZLIB_FLG_FDICT_BITS => 0x1 ; # 0b1; + +use constant ZLIB_FLG_LEVEL_OFFSET => 6; +use constant ZLIB_FLG_LEVEL_BITS => 0x3 ; # 0b11; + +use constant ZLIB_FLG_LEVEL_FASTEST => 0; +use constant ZLIB_FLG_LEVEL_FAST => 1; +use constant ZLIB_FLG_LEVEL_DEFAULT => 2; +use constant ZLIB_FLG_LEVEL_SLOWEST => 3; + +use constant ZLIB_FDICT_SIZE => 4; + + +1; diff --git a/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Extra.pm b/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Extra.pm new file mode 100755 index 00000000000..6812bb409dc --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Compress/Zlib/Extra.pm @@ -0,0 +1,198 @@ +package IO::Compress::Zlib::Extra; + +require 5.004 ; + +use strict ; +use warnings; +use bytes; + +our ($VERSION, @ISA, @EXPORT_OK, %EXPORT_TAGS); + +$VERSION = '2.024'; + +use IO::Compress::Gzip::Constants 2.024 ; + +sub ExtraFieldError +{ + return $_[0]; + return "Error with ExtraField Parameter: $_[0]" ; +} + +sub validateExtraFieldPair +{ + my $pair = shift ; + my $strict = shift; + my $gzipMode = shift ; + + return ExtraFieldError("Not an array ref") + unless ref $pair && ref $pair eq 'ARRAY'; + + return ExtraFieldError("SubField must have two parts") + unless @$pair == 2 ; + + return ExtraFieldError("SubField ID is a reference") + if ref $pair->[0] ; + + return ExtraFieldError("SubField Data is a reference") + if ref $pair->[1] ; + + # ID is exactly two chars + return ExtraFieldError("SubField ID not two chars long") + unless length $pair->[0] == GZIP_FEXTRA_SUBFIELD_ID_SIZE ; + + # Check that the 2nd byte of the ID isn't 0 + return ExtraFieldError("SubField ID 2nd byte is 0x00") + if $strict && $gzipMode && substr($pair->[0], 1, 1) eq "\x00" ; + + return ExtraFieldError("SubField Data too long") + if length $pair->[1] > GZIP_FEXTRA_SUBFIELD_MAX_SIZE ; + + + return undef ; +} + +sub parseRawExtra +{ + my $data = shift ; + my $extraRef = shift; + my $strict = shift; + my $gzipMode = shift ; + + #my $lax = shift ; + + #return undef + # if $lax ; + + my $XLEN = length $data ; + + return ExtraFieldError("Too Large") + if $XLEN > GZIP_FEXTRA_MAX_SIZE; + + my $offset = 0 ; + while ($offset < $XLEN) { + + return ExtraFieldError("Truncated in FEXTRA Body Section") + if $offset + GZIP_FEXTRA_SUBFIELD_HEADER_SIZE > $XLEN ; + + my $id = substr($data, $offset, GZIP_FEXTRA_SUBFIELD_ID_SIZE); + $offset += GZIP_FEXTRA_SUBFIELD_ID_SIZE; + + my $subLen = unpack("v", substr($data, $offset, + GZIP_FEXTRA_SUBFIELD_LEN_SIZE)); + $offset += GZIP_FEXTRA_SUBFIELD_LEN_SIZE ; + + return ExtraFieldError("Truncated in FEXTRA Body Section") + if $offset + $subLen > $XLEN ; + + my $bad = validateExtraFieldPair( [$id, + substr($data, $offset, $subLen)], + $strict, $gzipMode ); + return $bad if $bad ; + push @$extraRef, [$id => substr($data, $offset, $subLen)] + if defined $extraRef;; + + $offset += $subLen ; + } + + + return undef ; +} + + +sub mkSubField +{ + my $id = shift ; + my $data = shift ; + + return $id . pack("v", length $data) . $data ; +} + +sub parseExtraField +{ + my $dataRef = $_[0]; + my $strict = $_[1]; + my $gzipMode = $_[2]; + #my $lax = @_ == 2 ? $_[1] : 1; + + + # ExtraField can be any of + # + # -ExtraField => $data + # + # -ExtraField => [$id1, $data1, + # $id2, $data2] + # ... + # ] + # + # -ExtraField => [ [$id1 => $data1], + # [$id2 => $data2], + # ... + # ] + # + # -ExtraField => { $id1 => $data1, + # $id2 => $data2, + # ... + # } + + if ( ! ref $dataRef ) { + + return undef + if ! $strict; + + return parseRawExtra($dataRef, undef, 1, $gzipMode); + } + + #my $data = $$dataRef; + my $data = $dataRef; + my $out = '' ; + + if (ref $data eq 'ARRAY') { + if (ref $data->[0]) { + + foreach my $pair (@$data) { + return ExtraFieldError("Not list of lists") + unless ref $pair eq 'ARRAY' ; + + my $bad = validateExtraFieldPair($pair, $strict, $gzipMode) ; + return $bad if $bad ; + + $out .= mkSubField(@$pair); + } + } + else { + return ExtraFieldError("Not even number of elements") + unless @$data % 2 == 0; + + for (my $ix = 0; $ix <= length(@$data) -1 ; $ix += 2) { + my $bad = validateExtraFieldPair([$data->[$ix], + $data->[$ix+1]], + $strict, $gzipMode) ; + return $bad if $bad ; + + $out .= mkSubField($data->[$ix], $data->[$ix+1]); + } + } + } + elsif (ref $data eq 'HASH') { + while (my ($id, $info) = each %$data) { + my $bad = validateExtraFieldPair([$id, $info], $strict, $gzipMode); + return $bad if $bad ; + + $out .= mkSubField($id, $info); + } + } + else { + return ExtraFieldError("Not a scalar, array ref or hash ref") ; + } + + return ExtraFieldError("Too Large") + if length $out > GZIP_FEXTRA_MAX_SIZE; + + $_[0] = $out ; + + return undef; +} + +1; + +__END__ |