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Transport
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files >> //proc/self/root/usr/share/perl5/vendor_perl/Net/SNMP/Transport/IPv4.pm
# -*- 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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