contrib/check_appletalk.pl

   1 #! /usr/bin/perl -wT
   2 #
   3 # check_atalk_ping plugin for nagios
   4 #
   5 # usage:
   6 #    check_atalk_ping atalkaddress
   7 #
   8 # Checks if an atalkhost responds to an atalk echo
   9 # using "aecho"
  10 #
  11 # initial version: 23 October 2002 by Stefan Beck, IT Software Solutions
  12 # current status: $Revision$
  13 #
  14 # Copyright Notice: GPL
  15 #
  16 BEGIN {
  17      if ( $0 =~ m/^(.*?)[\/\\]([^\/\\]+)$/ ) {
  18          $runtimedir = $1;
  19          $PROGNAME   = $2;
  20      }
  21      delete $ENV{'LANG'};
  22 }
  23
  24 use strict;
  25 use lib "/usr/local/nagios/libexec";
  26
  27 use utils qw($TIMEOUT %ERRORS &print_revision &support);
  28 use vars qw($PROGNAME);
  29
  30 $PROGNAME = "check_atalk";
  31
  32 my (
  33      $verbose,      $host,          $warning_avg, $warning_loss,
  34      $critical_avg, $critical_loss, $count,       $cmd,
  35      $avg,          $loss,          $line
  36 );
  37 my ( $opt_c, $opt_w, $opt_H, $opt_p );
  38 $opt_c = $opt_w = $opt_p = $opt_H = '';
  39
  40 sub print_help ();
  41 sub print_usage ();
  42 sub help ();
  43 sub version ();
  44
  45 # Just in case of problems, let's not hang NetSaint
  46 $SIG{'ALRM'} = sub {
  47          print "Plugin Timeout\n";
  48          exit 2;
  49 };
  50 alarm($TIMEOUT);
  51
  52 delete @ENV{ 'PATH', 'IFS', 'CDPATH', 'ENV', 'BASH_ENV' };
  53
  54 use Getopt::Long;
  55 Getopt::Long::Configure( 'bundling', 'no_ignore_case' );
  56 GetOptions(
  57      "V|version"    => \&version,
  58      "h|help"       => \&help,
  59      "p|packets=i"  => \$opt_p,
  60      "c|critical=s" => \$opt_c,
  61      "w|warning=s"  => \$opt_w,
  62      "H|hostname=s" => \$opt_H
  63 );
  64
  65
  66 # appletalk  hostname ot address
  67 $opt_H = shift unless ($opt_H);
  68 unless ($opt_H) { print_usage (); exit $ERRORS{'UNKNOWN'}; }
  69 if ( $opt_H && $opt_H =~ m/^([-a-zA-Z\.\:0-9]+)$/ ) {
  70      $host = $1;
  71 }
  72 else {
  73      print "$opt_H is not a valid host name\n";
  74      exit $ERRORS{'UNKNOWN'};
  75 }
  76
  77 # number of packets
  78 $opt_p = 5 unless $opt_p;
  79 if ( $opt_p && $opt_p =~ m/^([1-9]+[0-9]*)$/ ) {
  80      $count = $1;
  81 }
  82 else {
  83      print "$opt_p is not a valid packet number\n";
  84      exit $ERRORS{'UNKNOWN'};
  85 }
  86
  87 if ( $opt_w && $opt_w =~ m/^([1-9]+[0-9]*),([1-9][0-9]*)%$/ ) {
  88      $warning_avg  = $1;
  89      $warning_loss = $2;
  90 }
  91 else {
  92      print "$opt_w is not a valid threshold\n";
  93      exit $ERRORS{'UNKNOWN'};
  94 }
  95
  96 if ( $opt_c && $opt_c =~ m/^([1-9]+[0-9]*),([1-9][0-9]*)%$/ ) {
  97      $critical_avg  = $1;
  98      $critical_loss = $2;
  99 }
 100 else {
 101      print "$opt_c is not a valid threshold\n";
 102      exit $ERRORS{'UNKNOWN'};
 103 }
 104
 105 $cmd = "/usr/bin/aecho -c $count $host 2>&1 |";
 106 print "$cmd\n" if ($verbose);
 107 open CMD, $cmd;
 108
 109 while (<CMD>) {
 110      print $_ if ($verbose);
 111      $line = $_;
 112
 113      # 5 packets sent, 5 packets received, 0% packet loss
 114      # round-trip (ms)  min/avg/max = 0/0/0
 115
 116      if (/received, ([0-9]+)% packet loss/) {
 117          $loss = $1;
 118      }
 119      if (/min\/avg\/max = [0-9]+\/([0-9]+)\/[0-9]+/) {
 120          $avg = $1;
 121      }
 122 }
 123
 124 sub print_help() {
 125      print_revision( $PROGNAME, '$Revision$ ' );
 126      print "Copyright (c) 2002 Stefan Beck\n";
 127      print "\n";
 128      print "Check if an atalkhost responds to an atalk echo using\n";
 129      print "      aecho -c <packets> <atalkhost>\n";
 130      print "\n";
 131      print_usage ();
 132      print "\n";
 133      print "-H, --hostname=HOST\n";
 134      print "   host to ping\n";
 135      print "-w, --warning=THRESHOLD\n";
 136      print "   warning threshold pair\n";
 137      print "-c, --critical=THRESHOLD\n";
 138      print "   critical threshold pair\n";
 139      print "-p, --packets=INTEGER\n";
 140      print "   number of ICMP ECHO packets to send (Default: 5)\n";
 141      print "\n";
 142      print
 143        "THRESHOLD is <rta>,<pl>% where <rta> is the round trip average
 144 travel\n";
 145      print
 146        "time (ms) which triggers a WARNING or CRITICAL state, and <pl>
 147 is the\n";
 148      print "percentage of packet loss to trigger an alarm state.\n";
 149      print "\n";
 150
 151      support();
 152 }
 153
 154 sub print_usage () {
 155      print "$PROGNAME -H atalkhost -w <wrta>,<wpl>% -c <crta>,<cpl>%\n";
 156      print "         [-p packets] [-t timeout] [-L]\n";
 157      print "$PROGNAME [-h | --help]\n";
 158      print "$PROGNAME [-V | --version]\n";
 159 }
 160
 161 sub version () {
 162      print_revision( $PROGNAME, '$Revision$ ' );
 163      exit $ERRORS{'OK'};
 164 }
 165
 166 sub help () {
 167      print_help ();
 168      exit $ERRORS{'OK'};
 169 }
 170
 171 my $state  = "OK";
 172 my $answer = undef;
 173
 174 if ( defined $loss && defined $avg ) {
 175      if ( $loss >= $critical_loss ) {
 176          $state = "CRITICAL";
 177      }
 178      elsif ( $avg >= $critical_avg ) {
 179          $state = "CRITICAL";
 180      }
 181      elsif ( $loss >= $warning_loss ) {
 182          $state = "WARNING";
 183      }
 184      elsif ( $avg >= $warning_avg ) {
 185          $state = "WARNING";
 186      }
 187      else {
 188          $state = "OK";
 189      }
 190      $answer = "Appletalk PING $state - Packet loss = $loss%, RTA = $avg
 191 ms\n";
 192 }
 193 else {
 194      $state  = "UNKNOWN";
 195      $answer = "UNKNOWN - $line";
 196 }
 197 print $answer;
 198 exit $ERRORS{$state};
 199
 200
 201
 202
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