plugins-scripts/check_mailq.pl

   1 #!/usr/local/bin/perl -w
   2
   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)
   9
  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 # $Id$
  26 #
  27 ############################################################################
  28
  29 use POSIX;
  30 use strict;
  31 use Getopt::Long;
  32 use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t
  33                                         $opt_M $mailq $status $state $msg $msg_q $msg_p $opt_W $opt_C $mailq @lines
  34                                         %srcdomains %dstdomains);
  35 use lib  utils.pm;
  36 use utils qw(%ERRORS &print_revision &support &usage );
  37
  38
  39 sub print_help ();
  40 sub print_usage ();
  41 sub process_arguments ();
  42
  43 $ENV{'PATH'}='';
  44 $ENV{'BASH_ENV'}='';
  45 $ENV{'ENV'}='';
  46 $PROGNAME = "check_mailq";
  47 $mailq = 'sendmail';    # default
  48 $msg_q = 0 ;
  49 $msg_p = 0 ;
  50 $state = $ERRORS{'UNKNOWN'};
  51
  52 Getopt::Long::Configure('bundling');
  53 $status = process_arguments();
  54 if ($status){
  55         print "ERROR: processing arguments\n";
  56         exit $ERRORS{"UNKNOWN"};
  57 }
  58
  59 $SIG{'ALRM'} = sub {
  60         print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
  61         exit $ERRORS{"WARNING"};
  62 };
  63 alarm($opt_t);
  64
  65 # switch based on MTA
  66
  67 if ($mailq eq "sendmail") {
  68
  69         ## open mailq
  70         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
  71                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
  72                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
  73                         exit $ERRORS{'UNKNOWN'};
  74                 }
  75         }elsif( defined $utils::PATH_TO_MAILQ){
  76                 unless (-x $utils::PATH_TO_MAILQ) {
  77                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
  78                         exit $ERRORS{'UNKNOWN'};
  79                 }
  80         } else {
  81                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
  82                 exit $ERRORS{'UNKNOWN'};
  83         }
  84 #  single queue empty
  85 ##/var/spool/mqueue is empty
  86 #  single queue: 1
  87 ##                /var/spool/mqueue (1 request)
  88 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
  89 ##h32E30p01763     2782 Wed Apr  2 15:03 <silvaATkpnqwest.pt>
  90 ##      8BITMIME
  91 ##                                       <silvaATeunet.pt>
  92
  93 #  multi queue empty
  94 ##/var/spool/mqueue/q0/df is empty
  95 ##/var/spool/mqueue/q1/df is empty
  96 ##/var/spool/mqueue/q2/df is empty
  97 ##/var/spool/mqueue/q3/df is empty
  98 ##/var/spool/mqueue/q4/df is empty
  99 ##/var/spool/mqueue/q5/df is empty
 100 ##/var/spool/mqueue/q6/df is empty
 101 ##/var/spool/mqueue/q7/df is empty
 102 ##/var/spool/mqueue/q8/df is empty
 103 ##/var/spool/mqueue/q9/df is empty
 104 ##/var/spool/mqueue/qA/df is empty
 105 ##/var/spool/mqueue/qB/df is empty
 106 ##/var/spool/mqueue/qC/df is empty
 107 ##/var/spool/mqueue/qD/df is empty
 108 ##/var/spool/mqueue/qE/df is empty
 109 ##/var/spool/mqueue/qF/df is empty
 110 ##                Total Requests: 0
 111 #  multi queue: 1
 112 ##/var/spool/mqueue/q0/df is empty
 113 ##/var/spool/mqueue/q1/df is empty
 114 ##/var/spool/mqueue/q2/df is empty
 115 ##                /var/spool/mqueue/q3/df (1 request)
 116 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
 117 ##h32De2f23534*      48 Wed Apr  2 14:40 nocol
 118 ##                                       nouserATEUnet.pt
 119 ##                                       canau
 120 ##/var/spool/mqueue/q4/df is empty
 121 ##/var/spool/mqueue/q5/df is empty
 122 ##/var/spool/mqueue/q6/df is empty
 123 ##/var/spool/mqueue/q7/df is empty
 124 ##/var/spool/mqueue/q8/df is empty
 125 ##/var/spool/mqueue/q9/df is empty
 126 ##/var/spool/mqueue/qA/df is empty
 127 ##/var/spool/mqueue/qB/df is empty
 128 ##/var/spool/mqueue/qC/df is empty
 129 ##/var/spool/mqueue/qD/df is empty
 130 ##/var/spool/mqueue/qE/df is empty
 131 ##/var/spool/mqueue/qF/df is empty
 132 ##                Total Requests: 1
 133
 134
 135         while (<MAILQ>) {
 136
 137                 # match email addr on queue listing
 138                 if ( (/<.*@.*\.(\w+\.\w+)>/) || (/<.*@(\w+\.\w+)>/) ) {
 139                         my $domain = $1;
 140                         if (/^\w+/) {
 141                         print "$utils::PATH_TO_MAILQ = srcdomain = $domain \n" if $verbose ;
 142                     $srcdomains{$domain} ++;
 143                         }
 144                         next;
 145                 }
 146
 147                 #
 148                 # ...
 149                 # sendmail considers a message with more than one destiny, say N, to the same MX
 150                 # to have N messages in queue.
 151                 # we will only consider one in this code
 152                 if (( /\s\(reply:\sread\serror\sfrom\s.*\.(\w+\.\w+)\.$/ ) || ( /\s\(reply:\sread\serror\sfrom\s(\w+\.\w+)\.$/ ) ||
 153                         ( /\s\(timeout\swriting\smessage\sto\s.*\.(\w+\.\w+)\.:/ ) || ( /\s\(timeout\swriting\smessage\sto\s(\w+\.\w+)\.:/ ) ||
 154                         ( /\s\(host\smap:\slookup\s\(.*\.(\w+\.\w+)\):/ ) || ( /\s\(host\smap:\slookup\s\((\w+\.\w+)\):/ ) ||
 155                         ( /\s\(Deferred:\s.*\s.*\.(\w+\.\w+)\.\)/ ) || ( /\s\(Deferred:\s.*\s(\w+\.\w+)\.\)/ ) ) {
 156
 157                         print "$utils::PATH_TO_MAILQ = dstdomain = $1 \n" if $verbose ;
 158                         $dstdomains{$1} ++;
 159                 }
 160
 161                 if (/\s+\(I\/O\serror\)/) {
 162                         print "$utils::PATH_TO_MAILQ = dstdomain = UNKNOWN \n" if $verbose ;
 163                         $dstdomains{'UNKNOWN'} ++;
 164                 }
 165
 166                 # Finally look at the overall queue length
 167                 #
 168                 if (/mqueue/) {
 169                         print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
 170                         if (/ \((\d+) request/) {
 171                 #
 172                     # single queue: first line
 173                     # multi queue: one for each queue. overwrite on multi queue below
 174                   $msg_q = $1 ;
 175                         }
 176                 } elsif (/^\s+Total\sRequests:\s(\d+)$/i) {
 177                         print "$utils::PATH_TO_MAILQ = $_ \n" if $verbose ;
 178                         #
 179                         # multi queue: last line
 180                         $msg_q = $1 ;
 181                 }
 182
 183         }
 184
 185
 186         ## close mailq
 187
 188         close (MAILQ);
 189
 190         if ( $? ) {
 191                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 192                 exit $ERRORS{CRITICAL};
 193         }
 194
 195         ## shut off the alarm
 196         alarm(0);
 197
 198
 199
 200         ## now check the queue length(s)
 201
 202         if ($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                 }
 219
 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                         }
 256
 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/$opt_C)";
 288                                 }
 289                         }
 290
 291                 } # End of queue length thresholds
 292
 293         }
 294
 295 } # end of ($mailq eq "sendmail")
 296 elsif ( $mailq eq "postfix" ) {
 297
 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         }
 313
 314
 315         @lines = reverse <MAILQ>;
 316
 317         # close qmail-qstat
 318         close MAILQ;
 319
 320         if ( $? ) {
 321                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 322                 exit $ERRORS{CRITICAL};
 323         }
 324
 325         ## shut off the alarm
 326         alarm(0);
 327
 328         # check queue length
 329         if ($lines[0]=~/Kbytes in (\d+)/) {
 330                 $msg_q = $1 ;
 331         }elsif ($lines[0]=~/Mail queue is empty/) {
 332                 $msg_q = 0;
 333         }else{
 334                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 335                 exit   $ERRORS{'UNKNOWN'};
 336         }
 337
 338         # check messages not processed
 339         #if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 340         #        my $msg_p = $1;
 341         #}else{
 342         #        print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 343         #        exit  $ERRORS{'UNKNOWN'};
 344         #}
 345
 346         # check queue length(s)
 347         if ($msg_q == 0){
 348                 $msg = "OK: mailq reports queue is empty";
 349                 $state = $ERRORS{'OK'};
 350         } else {
 351                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 352
 353                 # overall queue length
 354                 if ($msg_q < $opt_w) {
 355                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 356                         $state = $ERRORS{'OK'};
 357                 }elsif  ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 358                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 359                         $state = $ERRORS{'WARNING'};
 360                 }else {
 361                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 362                         $state = $ERRORS{'CRITICAL'};
 363                 }
 364
 365                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 366                 # are defined)
 367
 368                 #if (defined $opt_W) {
 369                 #        $msg .= "[Preprocessed = $msg_p]";
 370                 #        if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 371                 #                $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 372                 #        }elsif ($msg_p >= $opt_C ) {
 373                 #                $state = $ERRORS{"CRITICAL"} ;
 374                 #        }
 375                 #}
 376         }
 377 } # end of ($mailq eq "postfixl")
 378 elsif ( $mailq eq "qmail" ) {
 379
 380         # open qmail-qstat
 381         if ( defined $utils::PATH_TO_QMAIL_QSTAT && -x $utils::PATH_TO_QMAIL_QSTAT ) {
 382                 if (! open (MAILQ, "$utils::PATH_TO_QMAIL_QSTAT | " ) ) {
 383                         print "ERROR: could not open $utils::PATH_TO_QMAIL_QSTAT \n";
 384                         exit $ERRORS{'UNKNOWN'};
 385                 }
 386         }elsif( defined $utils::PATH_TO_QMAIL_QSTAT){
 387                 unless (-x $utils::PATH_TO_QMAIL_QSTAT) {
 388                         print "ERROR: $utils::PATH_TO_QMAIL_QSTAT is not executable by (uid $>:gid($)))\n";
 389                         exit $ERRORS{'UNKNOWN'};
 390                 }
 391         } else {
 392                 print "ERROR: \$utils::PATH_TO_QMAIL_QSTAT is not defined\n";
 393                 exit $ERRORS{'UNKNOWN'};
 394         }
 395
 396         @lines = <MAILQ>;
 397
 398         # close qmail-qstat
 399         close MAILQ;
 400
 401         if ( $? ) {
 402                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 403                 exit $ERRORS{CRITICAL};
 404         }
 405
 406         ## shut off the alarm
 407         alarm(0);
 408
 409         # check queue length
 410         if ($lines[0]=~/^messages in queue: (\d+)/) {
 411                 $msg_q = $1 ;
 412         }else{
 413                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 414                 exit   $ERRORS{'UNKNOWN'};
 415         }
 416
 417         # check messages not processed
 418         if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 419                 my $msg_p = $1;
 420         }else{
 421                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 422                 exit  $ERRORS{'UNKNOWN'};
 423         }
 424
 425
 426         # check queue length(s)
 427         if ($msg_q == 0){
 428                 $msg = "OK: qmail-qstat reports queue is empty";
 429                 $state = $ERRORS{'OK'};
 430         } else {
 431                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 432
 433                 # overall queue length
 434                 if ($msg_q < $opt_w) {
 435                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 436                         $state = $ERRORS{'OK'};
 437                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 438                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 439                         $state = $ERRORS{'WARNING'};
 440                 }else {
 441                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 442                         $state = $ERRORS{'CRITICAL'};
 443                 }
 444
 445                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 446                 # are defined)
 447
 448                 if (defined $opt_W) {
 449                         $msg .= "[Preprocessed = $msg_p]";
 450                         if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 451                                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 452                         }elsif ($msg_p >= $opt_C ) {
 453                                 $state = $ERRORS{"CRITICAL"} ;
 454                         }
 455                 }
 456         }
 457
 458
 459
 460 } # end of ($mailq eq "qmail")
 461 elsif ( $mailq eq "exim" ) {
 462         ## open mailq
 463         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 464                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 465                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 466                         exit $ERRORS{'UNKNOWN'};
 467                 }
 468         }elsif( defined $utils::PATH_TO_MAILQ){
 469                 unless (-x $utils::PATH_TO_MAILQ) {
 470                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 471                         exit $ERRORS{'UNKNOWN'};
 472                 }
 473         } else {
 474                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 475                 exit $ERRORS{'UNKNOWN'};
 476         }
 477
 478         while (<MAILQ>) {
 479             #22m  1.7K 19aEEr-0007hx-Dy <> *** frozen ***
 480             #root@exlixams.glups.fr
 481
 482             if (/\s[\w\d]{6}-[\w\d]{6}-[\w\d]{2}\s/) { # message id 19aEEr-0007hx-Dy
 483                 $msg_q++ ;
 484             }
 485         }
 486         close(MAILQ) ;
 487
 488         if ( $? ) {
 489                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 490                 exit $ERRORS{CRITICAL};
 491         }
 492         if ($msg_q < $opt_w) {
 493                 $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 494                 $state = $ERRORS{'OK'};
 495         }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 496                 $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 497                 $state = $ERRORS{'WARNING'};
 498         }else {
 499                 $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 500                 $state = $ERRORS{'CRITICAL'};
 501         }
 502 } # end of ($mailq eq "exim")
 503
 504 # Perfdata support
 505 print "$msg|unsent=$msg_q;$opt_w;$opt_c;0\n";
 506 exit $state;
 507
 508
 509 #####################################
 510 #### subs
 511
 512
 513 sub process_arguments(){
 514         GetOptions
 515                 ("V"   => \$opt_V, "version"    => \$opt_V,
 516                  "v"   => \$opt_v, "verbose"    => \$opt_v,
 517                  "h"   => \$opt_h, "help"               => \$opt_h,
 518                  "M:s" => \$opt_M, "mailserver:s" => \$opt_M, # mailserver (default     sendmail)
 519                  "w=i" => \$opt_w, "warning=i"  => \$opt_w,   # warning if above this number
 520                  "c=i" => \$opt_c, "critical=i" => \$opt_c,       # critical if above this number
 521                  "t=i" => \$opt_t, "timeout=i"  => \$opt_t
 522                  );
 523
 524         if ($opt_V) {
 525                 print_revision($PROGNAME,'$Revision$ ');
 526                 exit $ERRORS{'OK'};
 527         }
 528
 529         if ($opt_h) {
 530                 print_help();
 531                 exit $ERRORS{'OK'};
 532         }
 533
 534         if (defined $opt_v ){
 535                 $verbose = $opt_v;
 536         }
 537
 538         unless (defined $opt_t) {
 539                 $opt_t = $utils::TIMEOUT ;      # default timeout
 540         }
 541
 542         unless (  defined $opt_w &&  defined $opt_c ) {
 543                 print_usage();
 544                 exit $ERRORS{'UNKNOWN'};
 545         }
 546
 547         if ( $opt_w >= $opt_c) {
 548                 print "Warning (-w) cannot be greater than Critical (-c)!\n";
 549                 exit $ERRORS{'UNKNOWN'};
 550         }
 551
 552         if (defined $opt_W && ! defined !$opt_C) {
 553                 print "Need -C if using -W\n";
 554                 exit $ERRORS{'UNKNOWN'};
 555         }elsif(defined $opt_W && defined $opt_C) {
 556                 if ($opt_W >= $opt_C) {
 557                         print "Warning (-W) cannot be greater than Critical (-C)!\n";
 558                         exit $ERRORS{'UNKNOWN'};
 559                 }
 560         }
 561
 562         if (defined $opt_M) {
 563                 if ($opt_M =~ /^(sendmail|qmail|postfix|exim)$/) {
 564                         $mailq = $opt_M ;
 565                 }elsif( $opt_M eq ''){
 566                         $mailq = 'sendmail';
 567                 }else{
 568                         print "-M: $opt_M is not supported\n";
 569                         exit $ERRORS{'UNKNOWN'};
 570                 }
 571         }else{
 572                 $mailq = 'sendmail' ;
 573         }
 574
 575         return $ERRORS{'OK'};
 576 }
 577
 578 sub print_usage () {
 579         print "Usage: $PROGNAME -w <warn> -c <crit> [-W <warn>] [-C <crit>] [-M <MTA>] [-t <timeout>] [-v verbose]\n";
 580 }
 581
 582 sub print_help () {
 583         print_revision($PROGNAME,'$Revision$');
 584         print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n";
 585         print "\n";
 586         print_usage();
 587         print "\n";
 588         print "   Checks the number of messages in the mail queue (supports multiple sendmail queues, qmail)\n";
 589         print "   Feedback/patches to support non-sendmail mailqueue welcome\n\n";
 590         print "-w (--warning)   = Min. number of messages in queue to generate warning\n";
 591         print "-c (--critical)  = Min. number of messages in queu to generate critical alert ( w < c )\n";
 592         print "-W (--Warning)   = Min. number of messages for same domain in queue to generate warning\n";
 593         print "-C (--Critical)  = Min. number of messages for same domain in queue to generate critical alert ( W < C )\n";
 594         print "-t (--timeout)   = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
 595         print "-M (--mailserver) = [ sendmail | qmail | postfix | exim ] (default = sendmail)\n";
 596         print "-h (--help)\n";
 597         print "-V (--version)\n";
 598         print "-v (--verbose)   = debugging output\n";
 599         print "\n\n";
 600         print "Note: -w and -c are required arguments.  -W and -C are optional.\n";
 601         print " -W and -C are applied to domains listed on the queues - both FROM and TO. (sendmail)\n";
 602         print " -W and -C are applied message not yet preproccessed. (qmail)\n";
 603         print " This plugin uses the system mailq command (sendmail) or qmail-stat (qmail)\n";
 604         print " to look at the queues. Mailq can usually only be accessed by root or \n";
 605         print " a TrustedUser. You will have to set appropriate permissions for the plugin to work.\n";
 606         print "";
 607         print "\n\n";
 608         support();
 609 }