package Farly::Transport::PortRange;
use 5.008008;
use strict;
use warnings;
use Carp;
use Farly::Transport::Port;
use Farly::Transport::Object;
our $VERSION = '0.26';
our @ISA = qw(Farly::Transport::Object);
sub new {
my ( $class, $first, $last ) = @_;
my $self = {
LOW => undef,
HIGH => undef,
};
bless( $self, $class );
if ( defined $last ) {
$self->{LOW} = Farly::Transport::Port->new($first);
$self->{HIGH} = Farly::Transport::Port->new($last);
}
elsif ( defined $first ) {
my ( $low, $high ) = split( /-|\s+/, $first );
$self->{LOW} = Farly::Transport::Port->new($low);
$self->{HIGH} = Farly::Transport::Port->new($high);
}
confess "invalid port range"
if ( $self->first() > $self->last() );
return $self;
}
sub low {
return $_[0]->{LOW};
}
sub high {
return $_[0]->{HIGH};
}
sub first {
return $_[0]->{LOW}->port();
}
sub last {
return $_[0]->{HIGH}->port();
}
sub as_string {
my ($self) = @_;
return join( " ", $self->low()->as_string(), $self->high()->as_string() );
}
sub iter {
my ($self) = @_;
my @list;
my $i = $self->first();
do {
push @list, Farly::Transport::Port->new($i);
$i++;
} while ( $i < $self->last() );
return @list;
}
1;
__END__
=head1 NAME
Farly::Transport::PortRange - TCP/UDP port range class
=head1 DESCRIPTION
This class represents a TCP or UDP port number range.
Inherits from Farly::Transport::Object.
=head1 METHODS
=head2 new( <string> )
The constructor accepts port number range with the first port
separated from the last port by a space or dash.
my $port_range = Farly::Transport::PortRange->new( "1024 65535" );
my $port_range = Farly::Transport::PortRange->new( "1024-65535" );
=head2 first()
Returns the first port in the range as an integer
$first_8_bit_int = $port_range->first();
=head2 last()
Returns the last port in the range as an integer
$last_8_bit_int = $port_range->last();
=head2 as_string()
Returns the current Farly::Transport::PortRange as a string
print $port_range->as_string();
=head2 iter()
Returns an array containing the all of the port objects in the
current PortRange object. For use in Set calculations.
my @array = $port_range->iter();
=head1 COPYRIGHT AND LICENSE
Farly::Transport::PortRange
Copyright (C) 2012 Trystan Johnson
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.