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diff --git a/Monitoring/plugins/check_ircd b/Monitoring/plugins/check_ircd
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+#! /usr/bin/perl -wT
+
+# -----------------------------------------------------------------------------
+# File Name: check_ircd.pl
+#
+# Author: Richard Mayhew - South Africa
+#
+# Date: 1999/09/20
+#
+#
+# Description: This script will check to see if an IRCD is running
+# about how many users it has
+#
+# Email: netsaint@splash.co.za
+#
+# -----------------------------------------------------------------------------
+# Copyright 1999 (c) Richard Mayhew
+#
+# Credits go to Ethan Galstad for coding Nagios
+#
+# If any changes are made to this script, please mail me a copy of the
+# changes :)
+#
+# Some code taken from Charlie Cook (check_disk.pl)
+#
+# License GPL
+#
+# -----------------------------------------------------------------------------
+# Date Author Reason
+# ---- ------ ------
+#
+# 1999/09/20 RM Creation
+#
+# 1999/09/20 TP Changed script to use strict, more secure by
+# specifying $ENV variables. The bind command is
+# still insecure through. Did most of my work
+# with perl -wT and 'use strict'
+#
+# test using check_ircd.pl (irc-2.mit.edu|irc.erols.com|irc.core.com)
+# 2002/05/02 SG Fixed for Embedded Perl
+#
+
+# ----------------------------------------------------------------[ Require ]--
+
+require 5.004;
+
+# -------------------------------------------------------------------[ Uses ]--
+
+use Socket;
+use strict;
+use Getopt::Long;
+use vars qw($opt_V $opt_h $opt_t $opt_p $opt_H $opt_w $opt_c $verbose);
+use vars qw($PROGNAME);
+use lib "/usr/lib/nagios/plugins";
+use utils qw($TIMEOUT %ERRORS &print_revision &support &usage);
+
+# ----------------------------------------------------[ Function Prototypes ]--
+
+sub print_help ();
+sub print_usage ();
+sub connection ($$$$);
+sub bindRemote ($$);
+
+# -------------------------------------------------------------[ Enviroment ]--
+
+$ENV{PATH} = "";
+$ENV{ENV} = "";
+$ENV{BASH_ENV} = "";
+
+# -----------------------------------------------------------------[ Global ]--
+
+$PROGNAME = "check_ircd";
+my $NICK="ircd$$";
+my $USER_INFO="monitor localhost localhost : ";
+
+# -------------------------------------------------------------[ connection ]--
+sub connection ($$$$)
+{
+ my ($in_remotehost,$in_users,$in_warn,$in_crit) = @_;
+ my $state;
+ my $answer;
+
+ print "connection(debug): users = $in_users\n" if $verbose;
+ $in_users =~ s/\ //g;
+
+ if ($in_users >= 0) {
+
+ if ($in_users > $in_crit) {
+ $state = "CRITICAL";
+ $answer = "Critical Number Of Clients Connected : $in_users (Limit = $in_crit)\n";
+
+ } elsif ($in_users > $in_warn) {
+ $state = "WARNING";
+ $answer = "Warning Number Of Clients Connected : $in_users (Limit = $in_warn)\n";
+
+ } else {
+ $state = "OK";
+ $answer = "IRCD ok - Current Local Users: $in_users\n";
+ }
+
+ } else {
+ $state = "UNKNOWN";
+ $answer = "Server $in_remotehost has less than 0 users! Something is Really WRONG!\n";
+ }
+
+ print ClientSocket "quit\n";
+ print $answer;
+ exit $ERRORS{$state};
+}
+
+# ------------------------------------------------------------[ print_usage ]--
+
+sub print_usage () {
+ print "Usage: $PROGNAME -H <host> [-w <warn>] [-c <crit>] [-p <port>]\n";
+}
+
+# -------------------------------------------------------------[ print_help ]--
+
+sub print_help ()
+{
+ print_revision($PROGNAME,'1.4.15');
+ print "Copyright (c) 2000 Richard Mayhew/Karl DeBisschop
+
+Perl Check IRCD plugin for Nagios
+
+";
+ print_usage();
+ print "
+-H, --hostname=HOST
+ Name or IP address of host to check
+-w, --warning=INTEGER
+ Number of connected users which generates a warning state (Default: 50)
+-c, --critical=INTEGER
+ Number of connected users which generates a critical state (Default: 100)
+-p, --port=INTEGER
+ Port that the ircd daemon is running on <host> (Default: 6667)
+-v, --verbose
+ Print extra debugging information
+";
+}
+
+# -------------------------------------------------------------[ bindRemote ]--
+
+sub bindRemote ($$)
+{
+ my ($in_remotehost, $in_remoteport) = @_;
+ my $proto = getprotobyname('tcp');
+ my $sockaddr;
+ my $that;
+ my ($name, $aliases,$type,$len,$thataddr) = gethostbyname($in_remotehost);
+
+ if (!socket(ClientSocket,AF_INET, SOCK_STREAM, $proto)) {
+ print "IRCD UNKNOWN: Could not start socket ($!)\n";
+ exit $ERRORS{"UNKNOWN"};
+ }
+ $sockaddr = 'S n a4 x8';
+ $that = pack($sockaddr, AF_INET, $in_remoteport, $thataddr);
+ if (!connect(ClientSocket, $that)) {
+ print "IRCD UNKNOWN: Could not connect socket ($!)\n";
+ exit $ERRORS{"UNKNOWN"};
+ }
+ select(ClientSocket); $| = 1; select(STDOUT);
+ return \*ClientSocket;
+}
+
+# ===================================================================[ MAIN ]==
+
+MAIN:
+{
+ my $hostname;
+
+ Getopt::Long::Configure('bundling');
+ GetOptions
+ ("V" => \$opt_V, "version" => \$opt_V,
+ "h" => \$opt_h, "help" => \$opt_h,
+ "v" => \$verbose,"verbose" => \$verbose,
+ "t=i" => \$opt_t, "timeout=i" => \$opt_t,
+ "w=i" => \$opt_w, "warning=i" => \$opt_w,
+ "c=i" => \$opt_c, "critical=i" => \$opt_c,
+ "p=i" => \$opt_p, "port=i" => \$opt_p,
+ "H=s" => \$opt_H, "hostname=s" => \$opt_H);
+
+ if ($opt_V) {
+ print_revision($PROGNAME,'1.4.15');
+ exit $ERRORS{'OK'};
+ }
+
+ if ($opt_h) {print_help(); exit $ERRORS{'OK'};}
+
+ ($opt_H) || ($opt_H = shift @ARGV) || usage("Host name/address not specified\n");
+ my $remotehost = $1 if ($opt_H =~ /([-.A-Za-z0-9]+)/);
+ ($remotehost) || usage("Invalid host: $opt_H\n");
+
+ ($opt_w) || ($opt_w = shift @ARGV) || ($opt_w = 50);
+ my $warn = $1 if ($opt_w =~ /^([0-9]+)$/);
+ ($warn) || usage("Invalid warning threshold: $opt_w\n");
+
+ ($opt_c) || ($opt_c = shift @ARGV) || ($opt_c = 100);
+ my $crit = $1 if ($opt_c =~ /^([0-9]+)$/);
+ ($crit) || usage("Invalid critical threshold: $opt_c\n");
+
+ ($opt_p) || ($opt_p = shift @ARGV) || ($opt_p = 6667);
+ my $remoteport = $1 if ($opt_p =~ /^([0-9]+)$/);
+ ($remoteport) || usage("Invalid port: $opt_p\n");
+
+ if ($opt_t && $opt_t =~ /^([0-9]+)$/) { $TIMEOUT = $1; }
+
+ # Just in case of problems, let's not hang Nagios
+ $SIG{'ALRM'} = sub {
+ print "Somthing is Taking a Long Time, Increase Your TIMEOUT (Currently Set At $TIMEOUT Seconds)\n";
+ exit $ERRORS{"UNKNOWN"};
+ };
+
+ alarm($TIMEOUT);
+
+ my ($name, $alias, $proto) = getprotobyname('tcp');
+
+ print "MAIN(debug): binding to remote host: $remotehost -> $remoteport\n" if $verbose;
+ my $ClientSocket = &bindRemote($remotehost,$remoteport);
+
+ print ClientSocket "NICK $NICK\nUSER $USER_INFO\n";
+
+ while (<ClientSocket>) {
+ print "MAIN(debug): default var = $_\n" if $verbose;
+
+ # DALnet,LagNet,UnderNet etc. Require this!
+ # Replies with a PONG when presented with a PING query.
+ # If a server doesn't require it, it will be ignored.
+
+ if (m/^PING (.*)/) {print ClientSocket "PONG $1\n";}
+
+ alarm(0);
+
+ # Look for pattern in IRCD Output to gather Client Connections total.
+ connection($remotehost,$1,$warn,$crit) if (m/:I have\s+(\d+)/);
+ }
+ print "IRCD UNKNOWN: Unknown error - maybe could not authenticate\n";
+ exit $ERRORS{"UNKNOWN"};
+}