File Coverage

blib/lib/Net/Frame/Layer/DNS/RR/CNAME.pm

Criterion	Covered	Total	%
statement	21	33	63.6
branch	1	6	16.6
condition			n/a
subroutine	7	10	70.0
pod	6	6	100.0
total	35	55	63.6

#
# $Id: CNAME.pm 49 2009-05-31 13:15:34Z VinsWorldcom $
#
package Net::Frame::Layer::DNS::RR::CNAME;
use strict; use warnings;

use Net::Frame::Layer qw(:consts :subs);
our @ISA = qw(Net::Frame::Layer Exporter);

our @AS = qw(
   cname
);
__PACKAGE__->cgBuildIndices;
__PACKAGE__->cgBuildAccessorsScalar(\@AS);

use Net::Frame::Layer::DNS qw(:subs);

sub new {
   shift->SUPER::new(
      cname => 'localhost',
      @_,
   );
}

sub getLength {
   my $self = shift;
   # Add 2 for first encoding length and trailing '\0' (see dnsAton())
   return length($self->cname) + 2
}

sub pack {
   my $self = shift;

   my $name = dnsAton($self->cname);

   $self->raw($self->SUPER::pack('H*',
      $name
   )) or return;

   return $self->raw;
}

sub unpack {
   my $self = shift;

   my ($name, $ptr) = dnsNtoa($self->raw);

   $self->cname($name);

   $self->payload(substr $self->raw, $ptr);

   return $self;
}

sub encapsulate {
   my $self = shift;

   return $self->nextLayer if $self->nextLayer;

   if ($self->payload) {
      return 'DNS::RR';
   }

   NF_LAYER_NONE;
}

sub print {
   my $self = shift;

   my $l = $self->layer;
   my $buf = sprintf
      "$l: cname:%s",
         $self->cname;

   return $buf;
}

1;

__END__