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+#!/usr/local/bin/perl -w
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+
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+# check_mailq - check to see how many messages are in the smtp queue awating
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+# transmittal.
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+#
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+# Initial version support sendmail's mailq command
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+
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+# License Information:
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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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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+#
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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., 675 Mass Ave, Cambridge, MA 02139, USA.
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+#
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+############################################################################
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+
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+use POSIX;
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+use strict;
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+use Getopt::Long;
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+use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t $status $state $msg $msg_q );
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+use lib utils.pm;
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+use utils qw(%ERRORS &print_revision &support &usage );
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+
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+#my $MAILQ = "/usr/bin/mailq"; # need to migrate support to utils.pm and autoconf
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+
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+
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+sub print_help ();
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+sub print_usage ();
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+sub process_arguments ();
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+
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+$ENV{'PATH'}='';
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+$ENV{'BASH_ENV'}='';
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+$ENV{'ENV'}='';
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+$PROGNAME = "check_mailq";
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+
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+Getopt::Long::Configure('bundling');
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+$status = process_arguments();
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+if ($status){
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+ print "ERROR: processing arguments\n";
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+ exit $ERRORS{"UNKNOWN"};
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+}
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+
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+$SIG{'ALRM'} = sub {
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+ print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
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+ exit $ERRORS{"WARNING"};
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+};
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+alarm($opt_t);
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+
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+## open mailq
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+if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
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+ if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
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+ print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
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+ exit $ERRORS{'UNKNOWN'};
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+ }
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+}else{
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+ print "ERROR: Could not find mailq executable!\n";
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+ exit $ERRORS{'UNKNOWN'};
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+}
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+
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+# only first line is relevant in this iteration.
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+while (<MAILQ>) {
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+ if (/mqueue/) {
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+ print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
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+ if (/empty/ ) {
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+ $msg = "OK: mailq is empty";
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+ $msg_q = 0;
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+ $state = $ERRORS{'OK'};
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+ }elsif ( /(\d+)/ ) {
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+ $msg_q = $1 ;
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+
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+ print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
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+
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+ if ($msg_q < $opt_w) {
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+ $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
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+ $state = $ERRORS{'OK'};
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+ }elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
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+ $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
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+ $state = $ERRORS{'WARNING'};
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+ }else {
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+ $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
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+ $state = $ERRORS{'CRITICAL'};
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+ }
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+
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+ }
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+
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+ last;
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+ }
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+
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+}
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+
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+close (MAILQ);
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+# declare an error if we also get a non-zero return code from mailq
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+# unless already set to critical
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+if ( $? ) {
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+ print "stderr = $? : $! \n" if $verbose;
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+ $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"UNKNOWN"} ;
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+ print "MAILQ error: $!\n" if $verbose;
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+}
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+## close mailq
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+
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+# Perfdata support
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+print "$msg | mailq = $msg_q\n";
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+exit $state;
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+
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+
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+#####################################
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+#### subs
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+
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+
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+sub process_arguments(){
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+ GetOptions
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+ ("V" => \$opt_V, "version" => \$opt_V,
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+ "v" => \$opt_v, "verbose" => \$opt_v,
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+ "h" => \$opt_h, "help" => \$opt_h,
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+ "w=i" => \$opt_w, "warning=i" => \$opt_w, # warning if above this number
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+ "c=i" => \$opt_c, "critical=i" => \$opt_c, # critical if above this number
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+ "t=i" => \$opt_t, "timeout=i" => \$opt_t
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+ );
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+
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+ if ($opt_V) {
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+ print_revision($PROGNAME,'$Revision$ ');
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+ exit $ERRORS{'OK'};
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+ }
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+
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+ if ($opt_h) {
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+ print_help();
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+ exit $ERRORS{'OK'};
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+ }
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+
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+ if (defined $opt_v ){
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+ $verbose = $opt_v;
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+ }
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+
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+ unless (defined $opt_t) {
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+ $opt_t = $utils::TIMEOUT ; # default timeout
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+ }
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+
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+ unless ( defined $opt_w && defined $opt_c ) {
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+ print_usage();
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+ exit $ERRORS{'UNKNOWN'};
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+ }
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+
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+ if ( $opt_w >= $opt_c) {
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+ print "Warning cannot be greater than Critical!\n";
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+ exit $ERRORS{'UNKNOWN'};
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+ }
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+
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+ return $ERRORS{'OK'};
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+}
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+
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+sub print_usage () {
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+ print "Usage: $PROGNAME [-w <warn>] [-c <crit>] [-t <timeout>] [-v verbose]\n";
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+}
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+
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+sub print_help () {
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+ print_revision($PROGNAME,'$Revision$');
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+ print "Copyright (c) 2002 Subhendu Ghosh\n";
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+ print "\n";
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+ print_usage();
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+ print "\n";
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+ print " Checks the number of messages in the mail queue\n";
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+ print " Feedback/patches to support non-sendmail mailqueue welcome\n\n";
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+ print "-w (--warning) = Min. number of messages in queue to generate warning\n";
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+ print "-c (--critical) = Min. number of messages in queu to generate critical alert ( w < c )\n";
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+ print "-t (--timeout) = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
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+ print "-h (--help)\n";
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+ print "-V (--version)\n";
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+ print "-v (--verbose) = deebugging output\n";
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+ print "\n\n";
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+ support();
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+}
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Subhendu Ghosh