/usr/share/perl5/Core/Checksum.pm is in libopensrs-perl 3.0.0-1.
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 | # .Copyright (C) 1999-2002 TUCOWS.com Inc.
# .Created: 11/19/1999
# .Contactid: <admin@opensrs.org>
# .Url: http://www.opensrs.org
# .Originally Developed by:
# Tucows/OpenSRS
# .Authors: Igor Kolomiets
#
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Simple wrapper to Digest::MD5 library that provides
# calculate() function for creating checksum on a given
# array of values and compare() function to compare
# derived checksum with an expected one.
#
# $Id$
package Core::Checksum;
use strict;
use warnings;
use Digest::MD5 qw(md5_hex);
use Core::Exception;
use vars qw(@ISA @EXPORT_OK);
require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(calculate compare);
use Data::Dumper;
sub calculate {
my @args = @_;
my $md5 = md5_hex(@args);
return $md5;
}
sub compare {
my $digest = shift;
my @args = @_;
if (not defined $digest) {
throw 'dev', 'Undefined checksum';
}
$digest = lc $digest;
$digest =~ s/[^0-9a-f]//g;
return $digest eq calculate(@args) ? 1 : 0;
}
1;
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