Code

Added -M for maxmsgsize (v1/v2c)
[nagiosplug.git] / plugins-scripts / check_mailq.pl
1 #!/usr/local/bin/perl -w
3 # check_mailq - check to see how many messages are in the smtp queue awating
4 #   transmittal.  
5 #
6 # Initial version support sendmail's mailq command
7 #  Support for mutiple sendmail queues (Carlos Canau)
8 #  Support for qmail (Benjamin Schmid)
10 # License Information:
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2 of the License, or
14 # (at your option) any later version.
15 #
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 # GNU General Public License for more details.
20 #
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write to the Free Software
23 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #
25 ############################################################################
27 use POSIX;
28 use strict;
29 use Getopt::Long;
30 use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t
31                                         $opt_M $mailq $status $state $msg $msg_q $msg_p $opt_W $opt_C $mailq @lines
32                                         %srcdomains %dstdomains);
33 use lib  utils.pm;
34 use utils qw(%ERRORS &print_revision &support &usage );
37 sub print_help ();
38 sub print_usage ();
39 sub process_arguments ();
41 $ENV{'PATH'}='';
42 $ENV{'BASH_ENV'}=''; 
43 $ENV{'ENV'}='';
44 $PROGNAME = "check_mailq";
45 $mailq = 'sendmail';    # default
46 $msg_q = 0 ;
47 $msg_p = 0 ;
48 $state = $ERRORS{'UNKNOWN'};
50 Getopt::Long::Configure('bundling');
51 $status = process_arguments();
52 if ($status){
53         print "ERROR: processing arguments\n";
54         exit $ERRORS{"UNKNOWN"};
55 }
57 $SIG{'ALRM'} = sub {
58         print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
59         exit $ERRORS{"WARNING"};
60 };
61 alarm($opt_t);
63 # switch based on MTA
65 if ($mailq eq "sendmail") {
67         ## open mailq 
68         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
69                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
70                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
71                         exit $ERRORS{'UNKNOWN'};
72                 }
73         }elsif( defined $utils::PATH_TO_MAILQ){
74                 unless (-x $utils::PATH_TO_MAILQ) {
75                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
76                         exit $ERRORS{'UNKNOWN'};
77                 }
78         } else {
79                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
80                 exit $ERRORS{'UNKNOWN'};
81         }
82 #  single queue empty
83 ##/var/spool/mqueue is empty
84 #  single queue: 1
85 ##                /var/spool/mqueue (1 request)
86 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
87 ##h32E30p01763     2782 Wed Apr  2 15:03 <silvaATkpnqwest.pt>
88 ##      8BITMIME
89 ##                                       <silvaATeunet.pt>
91 #  multi queue empty
92 ##/var/spool/mqueue/q0/df is empty
93 ##/var/spool/mqueue/q1/df is empty
94 ##/var/spool/mqueue/q2/df is empty
95 ##/var/spool/mqueue/q3/df is empty
96 ##/var/spool/mqueue/q4/df is empty
97 ##/var/spool/mqueue/q5/df is empty
98 ##/var/spool/mqueue/q6/df is empty
99 ##/var/spool/mqueue/q7/df is empty
100 ##/var/spool/mqueue/q8/df is empty
101 ##/var/spool/mqueue/q9/df is empty
102 ##/var/spool/mqueue/qA/df is empty
103 ##/var/spool/mqueue/qB/df is empty
104 ##/var/spool/mqueue/qC/df is empty
105 ##/var/spool/mqueue/qD/df is empty
106 ##/var/spool/mqueue/qE/df is empty
107 ##/var/spool/mqueue/qF/df is empty
108 ##                Total Requests: 0
109 #  multi queue: 1
110 ##/var/spool/mqueue/q0/df is empty
111 ##/var/spool/mqueue/q1/df is empty
112 ##/var/spool/mqueue/q2/df is empty
113 ##                /var/spool/mqueue/q3/df (1 request)
114 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
115 ##h32De2f23534*      48 Wed Apr  2 14:40 nocol
116 ##                                       nouserATEUnet.pt
117 ##                                       canau
118 ##/var/spool/mqueue/q4/df is empty
119 ##/var/spool/mqueue/q5/df is empty
120 ##/var/spool/mqueue/q6/df is empty
121 ##/var/spool/mqueue/q7/df is empty
122 ##/var/spool/mqueue/q8/df is empty
123 ##/var/spool/mqueue/q9/df is empty
124 ##/var/spool/mqueue/qA/df is empty
125 ##/var/spool/mqueue/qB/df is empty
126 ##/var/spool/mqueue/qC/df is empty
127 ##/var/spool/mqueue/qD/df is empty
128 ##/var/spool/mqueue/qE/df is empty
129 ##/var/spool/mqueue/qF/df is empty
130 ##                Total Requests: 1
132         
133         while (<MAILQ>) {
134         
135                 # match email addr on queue listing
136                 if ( (/<.*@.*\.(\w+\.\w+)>/) || (/<.*@(\w+\.\w+)>/) ) {
137                         my $domain = $1;
138                         if (/^\w+/) {
139                         print "$utils::PATH_TO_MAILQ = srcdomain = $domain \n" if $verbose ;
140                     $srcdomains{$domain} ++;
141                         }
142                         next;
143                 }
144         
145                 #
146                 # ...
147                 # sendmail considers a message with more than one destiny, say N, to the same MX 
148                 # to have N messages in queue.
149                 # we will only consider one in this code
150                 if (( /\s\(reply:\sread\serror\sfrom\s.*\.(\w+\.\w+)\.$/ ) || ( /\s\(reply:\sread\serror\sfrom\s(\w+\.\w+)\.$/ ) ||
151                         ( /\s\(timeout\swriting\smessage\sto\s.*\.(\w+\.\w+)\.:/ ) || ( /\s\(timeout\swriting\smessage\sto\s(\w+\.\w+)\.:/ ) ||
152                         ( /\s\(host\smap:\slookup\s\(.*\.(\w+\.\w+)\):/ ) || ( /\s\(host\smap:\slookup\s\((\w+\.\w+)\):/ ) || 
153                         ( /\s\(Deferred:\s.*\s.*\.(\w+\.\w+)\.\)/ ) || ( /\s\(Deferred:\s.*\s(\w+\.\w+)\.\)/ ) ) {
154         
155                         print "$utils::PATH_TO_MAILQ = dstdomain = $1 \n" if $verbose ;
156                         $dstdomains{$1} ++;
157                 }
158         
159                 if (/\s+\(I\/O\serror\)/) {
160                         print "$utils::PATH_TO_MAILQ = dstdomain = UNKNOWN \n" if $verbose ;
161                         $dstdomains{'UNKNOWN'} ++;
162                 }
164                 # Finally look at the overall queue length
165                 #
166                 if (/mqueue/) {
167                         print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
168                         if (/ \((\d+) request/) {
169                 #
170                     # single queue: first line
171                     # multi queue: one for each queue. overwrite on multi queue below
172                   $msg_q = $1 ;
173                         }
174                 } elsif (/^\s+Total\sRequests:\s(\d+)$/) {
175                         print "$utils::PATH_TO_MAILQ = $_ \n" if $verbose ;
176                         #
177                         # multi queue: last line
178                         $msg_q = $1 ;
179                 }
180         
181         }
182         
184         ## close mailq
186         close (MAILQ); 
187         # declare an error if we also get a non-zero return code from mailq
188         # unless already set to critical
189         if ( $? ) {
190                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
191                 print "STDERR $?: $!\n" if $verbose;
192                 $msg = "$state: (stderr)\n";
193         }
195         ## shut off the alarm
196         alarm(0);
200         ## now check the queue length(s)
202         if ($msg_q == 0) {
203                 $msg = "OK: mailq is empty";
204                 $state = $ERRORS{'OK'};
205         } else {
206                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
207         
208                 # overall queue length
209                 if ($msg_q < $opt_w) {
210                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
211                         $state = $ERRORS{'OK'};
212                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
213                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
214                         $state = $ERRORS{'WARNING'};
215                 }else {
216                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
217                         $state = $ERRORS{'CRITICAL'};
218                 }
220                 # check for domain specific queue lengths if requested
221                 if (defined $opt_W) {
222                 
223                         # Apply threshold to queue lengths FROM domain
224                         my @srckeys = sort { $srcdomains{$b} <=> $srcdomains{$a} } keys %srcdomains;
225           my $srcmaxkey = $srckeys[0];
226         print "src max is $srcmaxkey with $srcdomains{$srcmaxkey} messages\n" if $verbose;
227                 
228                         if ($srcdomains{$srcmaxkey} >= $opt_W && $srcdomains{$srcmaxkey} < $opt_C) {
229                                 if ($state == $ERRORS{'OK'}) {
230                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
231                                         $state = $ERRORS{'WARNING'};
232                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
233                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
234                                 } else {
235                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
236                                         $state = $ERRORS{'WARNING'};
237                                 }
238           } elsif ($srcdomains{$srcmaxkey} >= $opt_C) {
239                                 if ($state == $ERRORS{'OK'}) {
240                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C)";
241                                         $state = $ERRORS{'CRITICAL'};
242                                 } elsif ($state == $ERRORS{'WARNING'}) {
243                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C) -and- " . $msg;
244                                         $msg =~ s/WARNING: //;
245                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
246                                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
247                                 } else {
248                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
249                                         $state = $ERRORS{'CRITICAL'};
250                                 }
251             } else {
252                                 if ($srcdomains{$srcmaxkey} > 0) {
253                                         $msg .= " $srcdomains{$srcmaxkey} msgs. FROM $srcmaxkey is below threshold ($opt_W/$opt_C)";
254                                 }
255                         }
257                         # Apply threshold to queue lengths TO domain
258                         my @dstkeys = sort { $dstdomains{$b} <=> $dstdomains{$a} } keys %dstdomains;
259             my $dstmaxkey = $dstkeys[0];
260           print "dst max is $dstmaxkey with $dstdomains{$dstmaxkey} messages\n" if $verbose;
261                 
262                         if ($dstdomains{$dstmaxkey} >= $opt_W && $dstdomains{$dstmaxkey} < $opt_C) {
263                                 if ($state == $ERRORS{'OK'}) {
264                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
265                                         $state = $ERRORS{'WARNING'};
266                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
267                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
268                                 } else {
269                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
270                                         $state = $ERRORS{'WARNING'};
271                                 }
272                         } elsif ($dstdomains{$dstmaxkey} >= $opt_C) {
273                                 if ($state == $ERRORS{'OK'}) {
274                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C)";
275                                         $state = $ERRORS{'CRITICAL'};
276                                 } elsif ($state == $ERRORS{'WARNING'}) {
277                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C) -and- " . $msg;
278                                         $msg =~ s/WARNING: //;
279                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
280                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
281                                 } else {
282                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
283                                         $state = $ERRORS{'CRITICAL'};
284                                 }
285                         } else {
286                                 if ($dstdomains{$dstmaxkey} > 0) {
287                                         $msg .= " $dstdomains{$dstmaxkey} msgs. TO $dstmaxkey is below threshold ($opt_W/$opt_C)";
288                                 }
289                         }
291                 } # End of queue length thresholds
293         }
295 } # end of ($mailq eq "sendmail")
296 elsif ( $mailq eq "postfix" ) {
298      ## open mailq
299         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
300                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
301                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
302                         exit $ERRORS{'UNKNOWN'};
303                 }
304         }elsif( defined $utils::PATH_TO_MAILQ){
305                 unless (-x $utils::PATH_TO_MAILQ) {
306                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
307                         exit $ERRORS{'UNKNOWN'};
308                 }
309         } else {
310                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
311                 exit $ERRORS{'UNKNOWN'};
312         }
315         @lines = reverse <MAILQ>;
317         # close qmail-qstat
318         close MAILQ;
319         # declare an error if we also get a non-zero return code from mailq
320         # unless already set to critical
321         if ( $? ) {
322                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
323                 print "STDERR $?: $!\n" if $verbose;
324                 $msg = "$state: (stderr)\n";
325         }
327         ## shut off the alarm
328         alarm(0);
330         # check queue length
331         if ($lines[0]=~/Kbytes in (\d+)/) {
332                 $msg_q = $1 ;
333         }elsif ($lines[0]=~/Mail queue is empty/) {
334                 $msg_q = 0;
335         }else{
336                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
337                 exit   $ERRORS{'UNKNOWN'};
338         }
340         # check messages not processed
341         #if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
342         #        my $msg_p = $1;
343         #}else{
344         #        print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
345         #        exit  $ERRORS{'UNKNOWN'};
346         #}
348         # check queue length(s)
349         if ($msg_q == 0){
350                 $msg = "OK: mailq reports queue is empty";
351                 $state = $ERRORS{'OK'};
352         } else {
353                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
355                 # overall queue length
356                 if ($msg_q < $opt_w) {
357                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
358                         $state = $ERRORS{'OK'};
359                 }elsif  ($msg_q >= $opt_w  && $msg_q < $opt_c) {
360                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
361                         $state = $ERRORS{'WARNING'};
362                 }else {
363                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
364                         $state = $ERRORS{'CRITICAL'};
365                 }
367                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
368                 # are defined)
370                 #if (defined $opt_W) {
371                 #        $msg .= "[Preprocessed = $msg_p]";
372                 #        if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
373                 #                $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
374                 #        }elsif ($msg_p >= $opt_C ) {
375                 #                $state = $ERRORS{"CRITICAL"} ;
376                 #        }
377                 #}
378         }
379 } # end of ($mailq eq "postfixl")
380 elsif ( $mailq eq "qmail" ) {
382         # open qmail-qstat 
383         if ( defined $utils::PATH_TO_QMAIL_QSTAT && -x $utils::PATH_TO_QMAIL_QSTAT ) {
384                 if (! open (MAILQ, "$utils::PATH_TO_QMAIL_QSTAT | " ) ) {
385                         print "ERROR: could not open $utils::PATH_TO_QMAIL_QSTAT \n";
386                         exit $ERRORS{'UNKNOWN'};
387                 }
388         }elsif( defined $utils::PATH_TO_QMAIL_QSTAT){
389                 unless (-x $utils::PATH_TO_QMAIL_QSTAT) {
390                         print "ERROR: $utils::PATH_TO_QMAIL_QSTAT is not executable by (uid $>:gid($)))\n";
391                         exit $ERRORS{'UNKNOWN'};
392                 }
393         } else {
394                 print "ERROR: \$utils::PATH_TO_QMAIL_QSTAT is not defined\n";
395                 exit $ERRORS{'UNKNOWN'};
396         }
398         @lines = <MAILQ>;
400         # close qmail-qstat
401         close MAILQ;
402         # declare an error if we also get a non-zero return code from mailq
403         # unless already set to critical
404         if ( $? ) {
405                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
406                 print "STDERR $?: $!\n" if $verbose;
407                 $msg = "$state: (stderr)\n";
408         }
410         ## shut off the alarm
411         alarm(0);
413         # check queue length
414         if ($lines[0]=~/^messages in queue: (\d+)/) {
415                 $msg_q = $1 ;
416         }else{
417                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
418                 exit   $ERRORS{'UNKNOWN'};
419         }
421         # check messages not processed
422         if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
423                 my $msg_p = $1;
424         }else{
425                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
426                 exit  $ERRORS{'UNKNOWN'};
427         }
430         # check queue length(s)
431         if ($msg_q == 0){
432                 $msg = "OK: qmail-qstat reports queue is empty";
433                 $state = $ERRORS{'OK'};
434         } else {
435                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
436                 
437                 # overall queue length
438                 if ($msg_q < $opt_w) {
439                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
440                         $state = $ERRORS{'OK'};
441                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
442                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
443                         $state = $ERRORS{'WARNING'};
444                 }else {
445                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
446                         $state = $ERRORS{'CRITICAL'};
447                 }
449                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
450                 # are defined)
451                 
452                 if (defined $opt_W) {
453                         $msg .= "[Preprocessed = $msg_p]";
454                         if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
455                                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
456                         }elsif ($msg_p >= $opt_C ) {
457                                 $state = $ERRORS{"CRITICAL"} ;
458                         }
459                 }
460         }                               
461                 
464 } # end of ($mailq eq "qmail")
465 elsif ( $mailq eq "exim" ) {
466         ## open mailq 
467         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
468                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
469                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
470                         exit $ERRORS{'UNKNOWN'};
471                 }
472         }elsif( defined $utils::PATH_TO_MAILQ){
473                 unless (-x $utils::PATH_TO_MAILQ) {
474                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
475                         exit $ERRORS{'UNKNOWN'};
476                 }
477         } else {
478                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
479                 exit $ERRORS{'UNKNOWN'};
480         }
482         while (<MAILQ>) {
483             #22m  1.7K 19aEEr-0007hx-Dy <> *** frozen ***
484             #root@exlixams.glups.fr
486             if (/\s[\w\d]{6}-[\w\d]{6}-[\w\d]{2}\s/) { # message id 19aEEr-0007hx-Dy
487                 $msg_q++ ;
488             }
489         }
490         close(MAILQ) ;
491         if ($msg_q < $opt_w) {
492                 $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
493                 $state = $ERRORS{'OK'};
494         }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
495                 $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
496                 $state = $ERRORS{'WARNING'};
497         }else {
498                 $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
499                 $state = $ERRORS{'CRITICAL'};
500         }
501 } # end of ($mailq eq "exim")
503 # Perfdata support
504 print "$msg|unsent=$msg_q;$opt_w;$opt_c;0\n";
505 exit $state;
508 #####################################
509 #### subs
512 sub process_arguments(){
513         GetOptions
514                 ("V"   => \$opt_V, "version"    => \$opt_V,
515                  "v"   => \$opt_v, "verbose"    => \$opt_v,
516                  "h"   => \$opt_h, "help"               => \$opt_h,
517                  "M:s" => \$opt_M, "mailserver:s" => \$opt_M, # mailserver (default     sendmail)
518                  "w=i" => \$opt_w, "warning=i"  => \$opt_w,   # warning if above this number
519                  "c=i" => \$opt_c, "critical=i" => \$opt_c,       # critical if above this number
520                  "W=i" => \$opt_W, "Warning=i"  => \$opt_W,   # warning if above this number
521                  "C=i" => \$opt_C, "Critical=i" => \$opt_C,       # critical if above this number
522                  "t=i" => \$opt_t, "timeout=i"  => \$opt_t 
523                  );
525         if ($opt_V) {
526                 print_revision($PROGNAME,'$Revision$ ');
527                 exit $ERRORS{'OK'};
528         }
530         if ($opt_h) {
531                 print_help();
532                 exit $ERRORS{'OK'};
533         }
535         if (defined $opt_v ){
536                 $verbose = $opt_v;
537         }
539         unless (defined $opt_t) {
540                 $opt_t = $utils::TIMEOUT ;      # default timeout
541         }
543         unless (  defined $opt_w &&  defined $opt_c ) {
544                 print_usage();
545                 exit $ERRORS{'UNKNOWN'};
546         }
548         if ( $opt_w >= $opt_c) {
549                 print "Warning (-w) cannot be greater than Critical (-c)!\n";
550                 exit $ERRORS{'UNKNOWN'};
551         }
553         if (defined $opt_W && ! defined !$opt_C) {
554                 print "Need -C if using -W\n";
555                 exit $ERRORS{'UNKNOWN'};
556         }elsif(defined $opt_W && defined $opt_C) {
557                 if ($opt_W >= $opt_C) {
558                         print "Warning (-W) cannot be greater than Critical (-C)!\n";
559                         exit $ERRORS{'UNKNOWN'};
560                 }
561         }
563         if (defined $opt_M) {
564                 if ($opt_M =~ /^(sendmail|qmail|postfix|exim)$/) {
565                         $mailq = $opt_M ;
566                 }elsif( $opt_M eq ''){
567                         $mailq = 'sendmail';
568                 }else{
569                         print "-M: $opt_M is not supported\n";
570                         exit $ERRORS{'UNKNOWN'};
571                 }
572         }else{
573                 $mailq = 'sendmail' ;
574         }
575                 
576         return $ERRORS{'OK'};
579 sub print_usage () {
580         print "Usage: $PROGNAME -w <warn> -c <crit> [-W <warn>] [-C <crit>] [-M <MTA>] [-t <timeout>] [-v verbose]\n";
583 sub print_help () {
584         print_revision($PROGNAME,'$Revision$');
585         print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n";
586         print "\n";
587         print_usage();
588         print "\n";
589         print "   Checks the number of messages in the mail queue (supports multiple sendmail queues, qmail)\n";
590         print "   Feedback/patches to support non-sendmail mailqueue welcome\n\n";
591         print "-w (--warning)   = Min. number of messages in queue to generate warning\n";
592         print "-c (--critical)  = Min. number of messages in queu to generate critical alert ( w < c )\n";
593         print "-W (--Warning)   = Min. number of messages for same domain in queue to generate warning\n";
594         print "-C (--Critical)  = Min. number of messages for same domain in queue to generate critical alert ( W < C )\n";
595         print "-t (--timeout)   = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
596         print "-M (--mailserver) = [ sendmail | qmail | postfix | exim ] (default = sendmail)\n";
597         print "-h (--help)\n";
598         print "-V (--version)\n";
599         print "-v (--verbose)   = debugging output\n";
600         print "\n\n";
601         print "Note: -w and -c are required arguments.  -W and -C are optional.\n";
602         print " -W and -C are applied to domains listed on the queues - both FROM and TO. (sendmail)\n";
603         print " -W and -C are applied message not yet preproccessed. (qmail)\n";
604         print " This plugin uses the system mailq command (sendmail) or qmail-stat (qmail)\n";
605         print " to look at the queues. Mailq can usually only be accessed by root or \n";
606         print " a TrustedUser. You will have to set appropriate permissions for the plugin to work.\n";
607         print "";
608         print "\n\n";
609         support();