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# -*- mode: perl -*-
# ============================================================================
package Net::SNMP::Transport::IPv4;
# $Id: IPv4.pm,v 1.1 2009/09/09 15:08:31 dtown Rel $
# Base object for the IPv4 Transport Domains.
# Copyright (c) 2008-2009 David M. Town <dtown@cpan.org>
# All rights reserved.
# This program is free software; you may redistribute it and/or modify it
# under the same terms as the Perl 5 programming language system itself.
# ============================================================================
use strict;
use Net::SNMP::Transport;
use IO::Socket qw(
INADDR_ANY INADDR_LOOPBACK inet_aton PF_INET sockaddr_in inet_ntoa
);
## Version of the Net::SNMP::Transport::IPv4 module
our $VERSION = v1.0.0;
# [private methods] ----------------------------------------------------------
sub _socket_create
{
my ($this) = @_;
return IO::Socket->new()->socket($this->_protocol_family(),
$this->_protocol_type(),
$this->_protocol());
}
sub _protocol_family
{
return PF_INET;
}
sub _addr_any
{
return INADDR_ANY;
}
sub _addr_loopback
{
return INADDR_LOOPBACK;
}
sub _hostname_resolve
{
my ($this, $host, $nh) = @_;
$nh->{addr} = undef;
# See if the the service/port was included in the address.
my $serv = ($host =~ s/:([\w\(\)\/]+)$//) ? $1 : undef;
if (defined($serv) && (!defined $this->_service_resolve($serv, $nh))) {
return $this->_error('Failed to resolve the %s service', $this->type());
}
# Resolve the address.
if (!defined ($nh->{addr} = inet_aton($_[1] = $host))) {
return $this->_error(
q{Unable to resolve the %s address "%s"}, $this->type(), $host
);
}
return $nh->{addr};
}
sub _name_pack
{
return sockaddr_in($_[1]->{port}, $_[1]->{addr});
}
sub _address
{
return inet_ntoa($_[0]->_addr($_[1]));
}
sub _addr
{
return (sockaddr_in($_[1]))[1];
}
sub _port
{
return (sockaddr_in($_[1]))[0];
}
sub _taddress
{
return sprintf '%s:%d', $_[0]->_address($_[1]), $_[0]->_port($_[1]);
}
sub _taddr
{
return $_[0]->_addr($_[1]) . pack 'n', $_[0]->_port($_[1]);
}
# ============================================================================
1; # [end Net::SNMP::Transport::IPv4]
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