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         # declare an error if we also get a non-zero return code from mailq
 190         # unless already set to critical
 191         if ( $? ) {
 192                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 193                 print "STDERR $?: $!\n" if $verbose;
 194                 $msg = "$state: (stderr)\n";
 195         }
 196
 197         ## shut off the alarm
 198         alarm(0);
 199
 200
 201
 202         ## now check the queue length(s)
 203
 204         if ($msg_q == 0) {
 205                 $msg = "OK: mailq is empty";
 206                 $state = $ERRORS{'OK'};
 207         } else {
 208                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 209
 210                 # overall queue length
 211                 if ($msg_q < $opt_w) {
 212                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 213                         $state = $ERRORS{'OK'};
 214                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 215                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 216                         $state = $ERRORS{'WARNING'};
 217                 }else {
 218                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 219                         $state = $ERRORS{'CRITICAL'};
 220                 }
 221
 222                 # check for domain specific queue lengths if requested
 223                 if (defined $opt_W) {
 224
 225                         # Apply threshold to queue lengths FROM domain
 226                         my @srckeys = sort { $srcdomains{$b} <=> $srcdomains{$a} } keys %srcdomains;
 227           my $srcmaxkey = $srckeys[0];
 228         print "src max is $srcmaxkey with $srcdomains{$srcmaxkey} messages\n" if $verbose;
 229
 230                         if ($srcdomains{$srcmaxkey} >= $opt_W && $srcdomains{$srcmaxkey} < $opt_C) {
 231                                 if ($state == $ERRORS{'OK'}) {
 232                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 233                                         $state = $ERRORS{'WARNING'};
 234                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
 235                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 236                                 } else {
 237                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 238                                         $state = $ERRORS{'WARNING'};
 239                                 }
 240           } elsif ($srcdomains{$srcmaxkey} >= $opt_C) {
 241                                 if ($state == $ERRORS{'OK'}) {
 242                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C)";
 243                                         $state = $ERRORS{'CRITICAL'};
 244                                 } elsif ($state == $ERRORS{'WARNING'}) {
 245                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C) -and- " . $msg;
 246                                         $msg =~ s/WARNING: //;
 247                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
 248                                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 249                                 } else {
 250                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 251                                         $state = $ERRORS{'CRITICAL'};
 252                                 }
 253             } else {
 254                                 if ($srcdomains{$srcmaxkey} > 0) {
 255                                         $msg .= " $srcdomains{$srcmaxkey} msgs. FROM $srcmaxkey is below threshold ($opt_W/$opt_C)";
 256                                 }
 257                         }
 258
 259                         # Apply threshold to queue lengths TO domain
 260                         my @dstkeys = sort { $dstdomains{$b} <=> $dstdomains{$a} } keys %dstdomains;
 261             my $dstmaxkey = $dstkeys[0];
 262           print "dst max is $dstmaxkey with $dstdomains{$dstmaxkey} messages\n" if $verbose;
 263
 264                         if ($dstdomains{$dstmaxkey} >= $opt_W && $dstdomains{$dstmaxkey} < $opt_C) {
 265                                 if ($state == $ERRORS{'OK'}) {
 266                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 267                                         $state = $ERRORS{'WARNING'};
 268                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
 269                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 270                                 } else {
 271                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 272                                         $state = $ERRORS{'WARNING'};
 273                                 }
 274                         } elsif ($dstdomains{$dstmaxkey} >= $opt_C) {
 275                                 if ($state == $ERRORS{'OK'}) {
 276                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C)";
 277                                         $state = $ERRORS{'CRITICAL'};
 278                                 } elsif ($state == $ERRORS{'WARNING'}) {
 279                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C) -and- " . $msg;
 280                                         $msg =~ s/WARNING: //;
 281                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
 282                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 283                                 } else {
 284                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 285                                         $state = $ERRORS{'CRITICAL'};
 286                                 }
 287                         } else {
 288                                 if ($dstdomains{$dstmaxkey} > 0) {
 289                                         $msg .= " $dstdomains{$dstmaxkey} msgs. TO $dstmaxkey is below threshold ($opt_W/$opt_C)";
 290                                 }
 291                         }
 292
 293                 } # End of queue length thresholds
 294
 295         }
 296
 297 } # end of ($mailq eq "sendmail")
 298 elsif ( $mailq eq "postfix" ) {
 299
 300      ## open mailq
 301         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 302                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 303                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 304                         exit $ERRORS{'UNKNOWN'};
 305                 }
 306         }elsif( defined $utils::PATH_TO_MAILQ){
 307                 unless (-x $utils::PATH_TO_MAILQ) {
 308                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 309                         exit $ERRORS{'UNKNOWN'};
 310                 }
 311         } else {
 312                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 313                 exit $ERRORS{'UNKNOWN'};
 314         }
 315
 316
 317         @lines = reverse <MAILQ>;
 318
 319         # close qmail-qstat
 320         close MAILQ;
 321         # declare an error if we also get a non-zero return code from mailq
 322         # unless already set to critical
 323         if ( $? ) {
 324                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 325                 print "STDERR $?: $!\n" if $verbose;
 326                 $msg = "$state: (stderr)\n";
 327         }
 328
 329         ## shut off the alarm
 330         alarm(0);
 331
 332         # check queue length
 333         if ($lines[0]=~/Kbytes in (\d+)/) {
 334                 $msg_q = $1 ;
 335         }elsif ($lines[0]=~/Mail queue is empty/) {
 336                 $msg_q = 0;
 337         }else{
 338                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 339                 exit   $ERRORS{'UNKNOWN'};
 340         }
 341
 342         # check messages not processed
 343         #if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 344         #        my $msg_p = $1;
 345         #}else{
 346         #        print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 347         #        exit  $ERRORS{'UNKNOWN'};
 348         #}
 349
 350         # check queue length(s)
 351         if ($msg_q == 0){
 352                 $msg = "OK: mailq reports queue is empty";
 353                 $state = $ERRORS{'OK'};
 354         } else {
 355                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 356
 357                 # overall queue length
 358                 if ($msg_q < $opt_w) {
 359                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 360                         $state = $ERRORS{'OK'};
 361                 }elsif  ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 362                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 363                         $state = $ERRORS{'WARNING'};
 364                 }else {
 365                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 366                         $state = $ERRORS{'CRITICAL'};
 367                 }
 368
 369                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 370                 # are defined)
 371
 372                 #if (defined $opt_W) {
 373                 #        $msg .= "[Preprocessed = $msg_p]";
 374                 #        if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 375                 #                $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 376                 #        }elsif ($msg_p >= $opt_C ) {
 377                 #                $state = $ERRORS{"CRITICAL"} ;
 378                 #        }
 379                 #}
 380         }
 381 } # end of ($mailq eq "postfixl")
 382 elsif ( $mailq eq "qmail" ) {
 383
 384         # open qmail-qstat
 385         if ( defined $utils::PATH_TO_QMAIL_QSTAT && -x $utils::PATH_TO_QMAIL_QSTAT ) {
 386                 if (! open (MAILQ, "$utils::PATH_TO_QMAIL_QSTAT | " ) ) {
 387                         print "ERROR: could not open $utils::PATH_TO_QMAIL_QSTAT \n";
 388                         exit $ERRORS{'UNKNOWN'};
 389                 }
 390         }elsif( defined $utils::PATH_TO_QMAIL_QSTAT){
 391                 unless (-x $utils::PATH_TO_QMAIL_QSTAT) {
 392                         print "ERROR: $utils::PATH_TO_QMAIL_QSTAT is not executable by (uid $>:gid($)))\n";
 393                         exit $ERRORS{'UNKNOWN'};
 394                 }
 395         } else {
 396                 print "ERROR: \$utils::PATH_TO_QMAIL_QSTAT is not defined\n";
 397                 exit $ERRORS{'UNKNOWN'};
 398         }
 399
 400         @lines = <MAILQ>;
 401
 402         # close qmail-qstat
 403         close MAILQ;
 404         # declare an error if we also get a non-zero return code from mailq
 405         # unless already set to critical
 406         if ( $? ) {
 407                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 408                 print "STDERR $?: $!\n" if $verbose;
 409                 $msg = "$state: (stderr)\n";
 410         }
 411
 412         ## shut off the alarm
 413         alarm(0);
 414
 415         # check queue length
 416         if ($lines[0]=~/^messages in queue: (\d+)/) {
 417                 $msg_q = $1 ;
 418         }else{
 419                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 420                 exit   $ERRORS{'UNKNOWN'};
 421         }
 422
 423         # check messages not processed
 424         if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 425                 my $msg_p = $1;
 426         }else{
 427                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 428                 exit  $ERRORS{'UNKNOWN'};
 429         }
 430
 431
 432         # check queue length(s)
 433         if ($msg_q == 0){
 434                 $msg = "OK: qmail-qstat reports queue is empty";
 435                 $state = $ERRORS{'OK'};
 436         } else {
 437                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 438
 439                 # overall queue length
 440                 if ($msg_q < $opt_w) {
 441                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 442                         $state = $ERRORS{'OK'};
 443                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 444                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 445                         $state = $ERRORS{'WARNING'};
 446                 }else {
 447                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 448                         $state = $ERRORS{'CRITICAL'};
 449                 }
 450
 451                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 452                 # are defined)
 453
 454                 if (defined $opt_W) {
 455                         $msg .= "[Preprocessed = $msg_p]";
 456                         if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 457                                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 458                         }elsif ($msg_p >= $opt_C ) {
 459                                 $state = $ERRORS{"CRITICAL"} ;
 460                         }
 461                 }
 462         }
 463
 464
 465
 466 } # end of ($mailq eq "qmail")
 467 elsif ( $mailq eq "exim" ) {
 468         ## open mailq
 469         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 470                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 471                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 472                         exit $ERRORS{'UNKNOWN'};
 473                 }
 474         }elsif( defined $utils::PATH_TO_MAILQ){
 475                 unless (-x $utils::PATH_TO_MAILQ) {
 476                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 477                         exit $ERRORS{'UNKNOWN'};
 478                 }
 479         } else {
 480                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 481                 exit $ERRORS{'UNKNOWN'};
 482         }
 483
 484         while (<MAILQ>) {
 485             #22m  1.7K 19aEEr-0007hx-Dy <> *** frozen ***
 486             #root@exlixams.glups.fr
 487
 488             if (/\s[\w\d]{6}-[\w\d]{6}-[\w\d]{2}\s/) { # message id 19aEEr-0007hx-Dy
 489                 $msg_q++ ;
 490             }
 491         }
 492         close(MAILQ) ;
 493         if ($msg_q < $opt_w) {
 494                 $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 495                 $state = $ERRORS{'OK'};
 496         }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 497                 $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 498                 $state = $ERRORS{'WARNING'};
 499         }else {
 500                 $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 501                 $state = $ERRORS{'CRITICAL'};
 502         }
 503 } # end of ($mailq eq "exim")
 504
 505 # Perfdata support
 506 print "$msg|unsent=$msg_q;$opt_w;$opt_c;0\n";
 507 exit $state;
 508
 509
 510 #####################################
 511 #### subs
 512
 513
 514 sub process_arguments(){
 515         GetOptions
 516                 ("V"   => \$opt_V, "version"    => \$opt_V,
 517                  "v"   => \$opt_v, "verbose"    => \$opt_v,
 518                  "h"   => \$opt_h, "help"               => \$opt_h,
 519                  "M:s" => \$opt_M, "mailserver:s" => \$opt_M, # mailserver (default     sendmail)
 520                  "w=i" => \$opt_w, "warning=i"  => \$opt_w,   # warning if above this number
 521                  "c=i" => \$opt_c, "critical=i" => \$opt_c,       # critical if above this number
 522                  "t=i" => \$opt_t, "timeout=i"  => \$opt_t
 523                  );
 524
 525         if ($opt_V) {
 526                 print_revision($PROGNAME,'$Revision$ ');
 527                 exit $ERRORS{'OK'};
 528         }
 529
 530         if ($opt_h) {
 531                 print_help();
 532                 exit $ERRORS{'OK'};
 533         }
 534
 535         if (defined $opt_v ){
 536                 $verbose = $opt_v;
 537         }
 538
 539         unless (defined $opt_t) {
 540                 $opt_t = $utils::TIMEOUT ;      # default timeout
 541         }
 542
 543         unless (  defined $opt_w &&  defined $opt_c ) {
 544                 print_usage();
 545                 exit $ERRORS{'UNKNOWN'};
 546         }
 547
 548         if ( $opt_w >= $opt_c) {
 549                 print "Warning (-w) cannot be greater than Critical (-c)!\n";
 550                 exit $ERRORS{'UNKNOWN'};
 551         }
 552
 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         }
 562
 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'};
 577 }
 578
 579 sub print_usage () {
 580         print "Usage: $PROGNAME -w <warn> -c <crit> [-W <warn>] [-C <crit>] [-M <MTA>] [-t <timeout>] [-v verbose]\n";
 581 }
 582
 583 sub print_help () {
 584         print_revision($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();
 610 }