/usr/share/perl5/Archive/Zip/BufferedFileHandle.pm is in libarchive-zip-perl 1.56-2ubuntu0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | package Archive::Zip::BufferedFileHandle;
# File handle that uses a string internally and can seek
# This is given as a demo for getting a zip file written
# to a string.
# I probably should just use IO::Scalar instead.
# Ned Konz, March 2000
use strict;
use IO::File;
use Carp;
use vars qw{$VERSION};
BEGIN {
$VERSION = '1.56';
$VERSION = eval $VERSION;
}
sub new {
my $class = shift || __PACKAGE__;
$class = ref($class) || $class;
my $self = bless(
{
content => '',
position => 0,
size => 0
},
$class
);
return $self;
}
# Utility method to read entire file
sub readFromFile {
my $self = shift;
my $fileName = shift;
my $fh = IO::File->new($fileName, "r");
CORE::binmode($fh);
if (!$fh) {
Carp::carp("Can't open $fileName: $!\n");
return undef;
}
local $/ = undef;
$self->{content} = <$fh>;
$self->{size} = length($self->{content});
return $self;
}
sub contents {
my $self = shift;
if (@_) {
$self->{content} = shift;
$self->{size} = length($self->{content});
}
return $self->{content};
}
sub binmode { 1 }
sub close { 1 }
sub opened { 1 }
sub eof {
my $self = shift;
return $self->{position} >= $self->{size};
}
sub seek {
my $self = shift;
my $pos = shift;
my $whence = shift;
# SEEK_SET
if ($whence == 0) { $self->{position} = $pos; }
# SEEK_CUR
elsif ($whence == 1) { $self->{position} += $pos; }
# SEEK_END
elsif ($whence == 2) { $self->{position} = $self->{size} + $pos; }
else { return 0; }
return 1;
}
sub tell { return shift->{position}; }
# Copy my data to given buffer
sub read {
my $self = shift;
my $buf = \($_[0]);
shift;
my $len = shift;
my $offset = shift || 0;
$$buf = '' if not defined($$buf);
my $bytesRead =
($self->{position} + $len > $self->{size})
? ($self->{size} - $self->{position})
: $len;
substr($$buf, $offset, $bytesRead) =
substr($self->{content}, $self->{position}, $bytesRead);
$self->{position} += $bytesRead;
return $bytesRead;
}
# Copy given buffer to me
sub write {
my $self = shift;
my $buf = \($_[0]);
shift;
my $len = shift;
my $offset = shift || 0;
$$buf = '' if not defined($$buf);
my $bufLen = length($$buf);
my $bytesWritten =
($offset + $len > $bufLen)
? $bufLen - $offset
: $len;
substr($self->{content}, $self->{position}, $bytesWritten) =
substr($$buf, $offset, $bytesWritten);
$self->{size} = length($self->{content});
return $bytesWritten;
}
sub clearerr() { 1 }
1;
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