/usr/share/perl5/MIME/Decoder/UU.pm is in libmime-tools-perl 5.509-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 | package MIME::Decoder::UU;
use strict;
use warnings;
=head1 NAME
MIME::Decoder::UU - decode a "uuencoded" stream
=head1 SYNOPSIS
A generic decoder object; see L<MIME::Decoder> for usage.
Also supports a preamble() method to recover text before
the uuencoded portion of the stream.
=head1 DESCRIPTION
A MIME::Decoder subclass for a nonstandard encoding whereby
data are uuencoded. Common non-standard MIME encodings for this:
x-uu
x-uuencode
=head1 SEE ALSO
L<MIME::Decoder>
=head1 AUTHOR
Eryq (F<eryq@zeegee.com>), ZeeGee Software Inc (F<http://www.zeegee.com>).
UU-decoding code lifted from "uuexplode", a Perl script by an
unknown author...
All rights reserved. This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
=cut
require 5.002;
use vars qw(@ISA $VERSION);
use MIME::Decoder;
use MIME::Tools qw(whine);
@ISA = qw(MIME::Decoder);
# The package version, both in 1.23 style *and* usable by MakeMaker:
$VERSION = "5.509";
#------------------------------
#
# decode_it IN, OUT
#
sub decode_it {
my ($self, $in, $out) = @_;
my ($mode, $file);
my @preamble;
### Init:
$self->{MDU_Preamble} = \@preamble;
$self->{MDU_Mode} = undef;
$self->{MDU_File} = undef;
### Find beginning...
local $_;
while (defined($_ = $in->getline)) {
if (/^begin(.*)/) { ### found it: now decode it...
my $modefile = $1;
if ($modefile =~ /^(\s+(\d+))?(\s+(.*?\S))?\s*\Z/) {
($mode, $file) = ($2, $4);
}
last; ### decoded or not, we're done
}
push @preamble, $_;
}
die("uu decoding: no begin found\n") if !defined($_); # hit eof!
### Store info:
$self->{MDU_Mode} = $mode;
$self->{MDU_File} = $file;
### Decode:
while (defined($_ = $in->getline)) {
last if /^end/;
next if /[a-z]/;
next unless int((((ord() - 32) & 077) + 2) / 3) == int(length() / 4);
$out->print(unpack('u', $_));
}
### chmod oct($mode), $file; # sheeyeah... right...
whine "file incomplete, no end found\n" if !defined($_); # eof
1;
}
#------------------------------
#
# encode_it IN, OUT
#
sub encode_it {
my ($self, $in, $out) = @_;
my $buf = '';
my $fname = (($self->head &&
$self->head->mime_attr('content-disposition.filename')) ||
'');
my $nl = $MIME::Entity::BOUNDARY_DELIMITER || "\n";
$out->print("begin 644 $fname$nl");
while ($in->read($buf, 45)) { $out->print(pack('u', $buf)) }
$out->print("end$nl");
1;
}
#------------------------------
#
# last_preamble
#
# Return the last preamble as ref to array of lines.
# Gets reset by decode_it().
#
sub last_preamble {
my $self = shift;
return $self->{MDU_Preamble} || [];
}
#------------------------------
#
# last_mode
#
# Return the last mode.
# Gets reset to undef by decode_it().
#
sub last_mode {
shift->{MDU_Mode};
}
#------------------------------
#
# last_filename
#
# Return the last filename.
# Gets reset by decode_it().
#
sub last_filename {
shift->{MDU_File} || [];
}
#------------------------------
1;
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