2011-06-03 SanchO Lerena <slerena@artica.es>
* pandora_inventory_change.pl
pandora_inventory_change.README: New remote plugin to check
changes in inventory, using a direct database check (only MySQL
supported).
git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@4402 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
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slerena
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2011-06-03 SanchO Lerena <slerena@artica.es>
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* pandora_inventory_change.pl
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pandora_inventory_change.README: New remote plugin to check changes
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in inventory, using a direct database check (only MySQL supported).
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2011-06-02 Ramon Novoa <rnovoa@artica.es>
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* lib/PandoraFMS/DataServer.pm: Do not include BADXML files when
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Pandora FMS Inventory Change detector for Pandora FMS
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=====================================================
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This is a small remote plugin used in Pandora FMS 3.0 or higher to check if a inventory module has changed. It connects to Pandora FMS database and checks if inventory data for a given module in a given agent has changed.
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Returns 0 if fails and 1 if it's the same, so this remote module should be configured using a generic_proc (generic Boolean) module type. Parameters accepted are two:
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-m <module_name>
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-a <agent_name>
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This is an example call to the plugin:
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pandora_inventory_change.pl -a almendra -m Cisco_Device_Configuration
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It stores in /tmp a file with the MD5 hash for the whole inventory data for each agent module:
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-rw-r--r-- 1 root root 32 jun 3 16:14 /tmp/inv_almendra_Cisco_Device_Configuration
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Witch contains a MD5 hash of the configuration:
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7e3ec4986f2e3951a83fb5ff4cab8396
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#!/usr/bin/perl -w
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##################################################################################
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# Inventory Change detector Plugin for Pandora FMS 3.0
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# (c) Sancho Lerena 2011, slerena@gmail.com
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; version 2
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##################################################################################
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use strict;
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use warnings;
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use Getopt::Long;
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use DBI;
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my %pa_config;
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my $temporal_hashdir = "/tmp";
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my $cfg_file = "/etc/pandora/pandora_server.conf";
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my $servername = "";
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my $agentname = "";
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my $modulename = "";
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my $servertype = 0;
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my $timeout = 10;
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my $queuedmodules = 0;
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my $module_result;
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my $sql_query;
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# -- Subroutine / Functions ------------------------------------
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sub die_return {
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print "0";
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exit 1;
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}
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sub die_return_timeout {
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print "0";
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exit -1;
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}
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sub help {
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print "\nPandora FMS Inventory Change detector for Pandora FMS\n\n";
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print "Syntax: \n\n\t ./pandora_inventory_change.pl [-c /etc/pandora/pandora_server.conf] -a agent_name -m module_name [ -q ] \n\n";
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print "\t -c It's optional, by default read Pandora FMS config file at /etc/pandora\n\n";
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print "Sample usage:\n\n\t ./pandora_inventory_change.pl -a myagent -m Cisco_Config\n\n";
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}
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sub clean_blank {
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my $input = $_[0];
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$input =~ s/\s//g;
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return $input;
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}
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sub load_config {
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my $cfgfile = $_[0];
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my $pa_config = $_[1];
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my $buffer_line;
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my @command_line;
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my $tbuf;
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# Collect items from config file and put in an array
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open (CFG, "$cfgfile") or die "Cannot open $cfgfile. Aborting \n\n";
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while (<CFG>){
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$buffer_line = $_;
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if ($buffer_line =~ /^[a-zA-Z]/){ # begins with letters
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if ($buffer_line =~ m/([\w\-\_\.]+)\s([0-9\w\-\_\.\/\?\&\=\)\(\_\-\!\*\@\#\%\$\~\"\']+)/){
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push @command_line, $buffer_line;
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}
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}
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}
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close (CFG);
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# Process this array with commandline like options
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# Process input parameters
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my @args = @command_line;
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my $parametro;
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my $ltotal=$#args;
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my $ax;
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# Has read setup file ok ?
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if ( $ltotal == 0 ) {
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print "[ERROR] No valid setup tokens readed in $cfgfile";
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exit;
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}
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for ($ax=0;$ax<=$ltotal;$ax++){
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$parametro = $args[$ax];
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if ($parametro =~ m/^incomingdir\s(.*)/i) {
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$tbuf= clean_blank($1);
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if ($tbuf =~ m/^\.(.*)/){
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$pa_config->{"incomingdir"} =$pa_config->{"basepath"}.$1;
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} else {
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$pa_config->{"incomingdir"} = $tbuf;
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}
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}
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elsif ($parametro =~ m/^log_file\s(.*)/i) {
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$tbuf= clean_blank($1);
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if ($tbuf =~ m/^\.(.*)/){
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$pa_config->{"logfile"} = $pa_config->{"basepath"}.$1;
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} else {
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$pa_config->{"logfile"} = $tbuf;
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}
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}
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elsif ($parametro =~ m/^errorlog_file\s(.*)/i) {
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$tbuf= clean_blank($1);
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if ($tbuf =~ m/^\.(.*)/){
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$pa_config->{"errorlogfile"} = $pa_config->{"basepath"}.$1;
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} else {
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$pa_config->{"errorlogfile"} = $tbuf;
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}
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}
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elsif ($parametro =~ m/^dbname\s(.*)/i) {
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$pa_config->{'dbname'}= clean_blank($1);
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}
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elsif ($parametro =~ m/^dbuser\s(.*)/i) {
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$pa_config->{'dbuser'}= clean_blank($1);
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}
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elsif ($parametro =~ m/^dbpass\s(.*)/i) {
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$pa_config->{'dbpass'}= clean_blank($1);
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}
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elsif ($parametro =~ m/^dbhost\s(.*)/i) {
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$pa_config->{'dbhost'}= clean_blank($1);
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}
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} # end of loop for parameter #
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}
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sub simple_sql ($$){
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my $dbh = $_[0];
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my $sql_query = $_[1];
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my $value = "";
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my $idag = $dbh->prepare($sql_query);
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$idag ->execute;
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my @datarow;
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if ($idag->rows != 0) {
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@datarow = $idag->fetchrow_array();
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$value = $datarow[0];
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}
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return $value;
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}
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# -----------------------------------------------------------------------
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# Main code -------------------------------------------------------------
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# -----------------------------------------------------------------------
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if ($#ARGV == -1){
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help();
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}
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GetOptions(
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"" => sub { help() },
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"h" => sub { help() },
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"help" => sub { help() },
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"c=s" => \$cfg_file,
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"a=s" => \$agentname,
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"m=s" => \$modulename
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);
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load_config ($cfg_file, \%pa_config);
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alarm($timeout);
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$SIG{ALRM} = sub { die_return_timeout(); };
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eval {
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# Connect to MySQL
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my $dbh = DBI->connect("DBI:mysql:".$pa_config{'dbname'}.":".$pa_config{"dbhost"}.":3306", $pa_config{"dbuser"}, $pa_config{"dbpass"}, { RaiseError => 1, AutoCommit => 1 });
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return undef unless defined ($dbh);
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my $sql_query = "SELECT md5(data) FROM tagente, tmodule_inventory, tagent_module_inventory
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WHERE tagente.nombre = '$agentname' AND tagente.id_agente = tagent_module_inventory.id_agente
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AND tmodule_inventory.name = '$modulename';";
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my $result = simple_sql ($dbh, $sql_query);
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# No valid data
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if ($result eq ""){
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exit;
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}
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my $full_filename = $temporal_hashdir . "/inv_".$agentname."_".$modulename;
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if ( ! -f $full_filename){
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open (FX, ">$full_filename");
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print FX $result;
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close (FX);
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print "1\n";
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exit
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} else {
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open (FX, "$full_filename");
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my $old_value = <FX>;
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close (FX);
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if ($old_value eq $result){
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print "1\n";
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exit;
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} else {
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open (FX, ">$full_filename");
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print FX $result;
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close (FX);
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print "0\n";
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exit
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}
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}
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};
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if ($@){
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die_return_timeout();
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}
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# -----------------------------------------------------------------------
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# End main code ---------------------------------------------------------
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# -----------------------------------------------------------------------
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