package Net::DNS::RR::CNAME;
#
# $Id: CNAME.pm,v 2.101 2004/01/04 04:31:10 ctriv Exp $
#
use strict;
use vars qw(@ISA $VERSION);
use Net::DNS::Packet;
@ISA = qw(Net::DNS::RR);
$VERSION = (qw$Revision: 2.101 $)[1];
sub new {
my ($class, $self, $data, $offset) = @_;
if ($self->{"rdlength"} > 0) {
($self->{"cname"}) = Net::DNS::Packet::dn_expand($data, $offset);
}
return bless $self, $class;
}
sub new_from_string {
my ($class, $self, $string) = @_;
if ($string) {
$string =~ s/\.+$//;
$self->{"cname"} = $string;
}
return bless $self, $class;
}
sub rdatastr {
my $self = shift;
return $self->{"cname"} ? "$self->{cname}." : '';
}
sub rr_rdata {
my ($self, $packet, $offset) = @_;
my $rdata = "";
if (exists $self->{"cname"}) {
$rdata = $packet->dn_comp($self->{"cname"}, $offset);
}
return $rdata;
}
# rdata contains a compressed domainname... we should not have that.
sub _canonicalRdata {
my ($self) = @_;
return $self->_name2wire($self->{"cname"});
}
1;
__END__
=head1 NAME
Net::DNS::RR::CNAME - DNS CNAME resource record
=head1 SYNOPSIS
C<use Net::DNS::RR>;
=head1 DESCRIPTION
Class for DNS Canonical Name (CNAME) resource records.
=head1 METHODS
=head2 cname
print "cname = ", $rr->cname, "\n";
Returns the RR's canonical name.
=head1 COPYRIGHT
Copyright (c) 1997-2002 Michael Fuhr.
Portions Copyright (c) 2002-2003 Chris Reinhardt.
All rights reserved. This program is free software; you may redistribute
it and/or modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<perl(1)>, L<Net::DNS>, L<Net::DNS::Resolver>, L<Net::DNS::Packet>,
L<Net::DNS::Header>, L<Net::DNS::Question>, L<Net::DNS::RR>,
RFC 1035 Section 3.3.1
=cut