centreon-plugins/apps/protocols/dns/lib/dns.pm

118 lines
4.2 KiB
Perl

###############################################################################
# Copyright 2005-2014 MERETHIS
# Centreon is developped by : Julien Mathis and Romain Le Merlus under
# GPL Licence 2.0.
#
# 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 2 of the License.
#
# 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>.
#
# Linking this program statically or dynamically with other modules is making a
# combined work based on this program. Thus, the terms and conditions of the GNU
# General Public License cover the whole combination.
#
# As a special exception, the copyright holders of this program give MERETHIS
# permission to link this program with independent modules to produce an timeelapsedutable,
# regardless of the license terms of these independent modules, and to copy and
# distribute the resulting timeelapsedutable under terms of MERETHIS choice, provided that
# MERETHIS also meet, for each linked independent module, the terms and conditions
# of the license of that module. An independent module is a module which is not
# derived from this program. If you modify this program, you may extend this
# exception to your version of the program, but you are not obliged to do so. If you
# do not wish to do so, delete this exception statement from your version.
#
# For more information : contact@centreon.com
# Author : Simon BOMM <sbomm@merethis.com>
#
####################################################################################
package apps::protocols::dns::lib::dns;
use strict;
use warnings;
use Net::DNS;
my $handle;
my %map_search_field = (
MX => 'exchange',
SOA => 'mname',
NS => 'nsdname',
A => 'address',
PTR => 'name',
);
sub search {
my ($self, %options) = @_;
my @results = ();
my $search_type = $self->{option_results}->{search_type};
if (defined($search_type) && !defined($map_search_field{$search_type})) {
$self->{output}->add_option_msg(short_msg => "search-type '$search_type' is unknown or unsupported");
$self->{output}->option_exit();
}
my $error_quit = defined($options{error_quit}) ? $options{error_quit} : undef;
my $reply = $handle->search($self->{option_results}->{search}, $search_type);
if ($reply) {
foreach my $rr ($reply->answer) {
if (!defined($search_type)) {
if ($rr->type eq 'A') {
push @results, $rr->address;
}
if ($rr->type eq 'PTR') {
push @results, $rr->name;
}
next;
}
next if ($rr->type ne $search_type);
my $search_field = $map_search_field{$search_type};
push @results, $rr->$search_field;
}
} else {
if (defined($error_quit)) {
$self->{output}->output_add(severity => $error_quit,
short_msg => sprintf("DNS Query Failed: %s", $handle->errorstring));
$self->{output}->display();
$self->{output}->exit();
}
}
return @results;
}
sub connect {
my ($self, %options) = @_;
my %dns_options = ();
my $nameservers = [];
if (defined($self->{option_results}->{nameservers})) {
$nameservers = [@{$self->{option_results}->{nameservers}}];
}
my $searchlist = [];
if (defined($self->{option_results}->{searchlist})) {
$searchlist = [@{$self->{option_results}->{searchlist}}];
}
foreach my $option (@{$self->{option_results}->{dns_options}}) {
next if ($option !~ /^(.+?)=(.+)$/);
$dns_options{$1} = $2;
}
$handle = Net::DNS::Resolver->new(
nameservers => $nameservers,
searchlist => $searchlist,
%dns_options
);
}
1;