File Coverage

blib/lib/Net/Frame/Layer/ICMPv4/Redirect.pm

Criterion	Covered	Total	%
statement	26	31	83.8
branch	4	10	40.0
condition			n/a
subroutine	8	9	88.8
pod	6	6	100.0
total	44	56	78.5

#
# $Id: Redirect.pm 53 2012-01-31 20:27:06Z gomor $
#
package Net::Frame::Layer::ICMPv4::Redirect;
use strict; use warnings;

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

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

sub new {
   my $self = shift->SUPER::new(
      gateway => '127.0.0.1',
      @_,
   );

   return $self;
}

sub getLength { 4 }

sub pack {
   my $self = shift;

   $self->raw($self->SUPER::pack('a4', inetAton($self->gateway)))
      or return;

   return $self->raw;
}

sub unpack {
   my $self = shift;

   my ($gateway, $payload) = $self->SUPER::unpack('a4 a*', $self->raw)
      or return;

   $self->gateway(inetNtoa($gateway));
   $self->payload($payload);

   return $self;
}

sub encapsulate {
   my $self = shift;

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

   if ($self->payload) {
      my $pLen = length($self->payload);
      if ($pLen < 40) {
         $self->payload($self->payload.("\x00" x (40 - $pLen)));
      }
      return 'IPv4';
   }

   return NF_LAYER_NONE;
}

sub print {
   my $self = shift;

   my $l = $self->layer;
   return sprintf "$l: gateway:%s", $self->gateway;
}

1;

__END__