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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
  24 # USA
  25 #
  26 ############################################################################
  27
  28 use POSIX;
  29 use strict;
  30 use Getopt::Long;
  31 use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t
  32                                         $opt_M $mailq $status $state $msg $msg_q $msg_p $opt_W $opt_C $mailq @lines
  33                                         %srcdomains %dstdomains);
  34 use lib  utils.pm;
  35 use utils qw(%ERRORS &print_revision &support &usage );
  36
  37
  38 sub print_help ();
  39 sub print_usage ();
  40 sub process_arguments ();
  41
  42 $ENV{'PATH'}='';
  43 $ENV{'BASH_ENV'}='';
  44 $ENV{'ENV'}='';
  45 $PROGNAME = "check_mailq";
  46 $mailq = 'sendmail';    # default
  47 $msg_q = 0 ;
  48 $msg_p = 0 ;
  49 $state = $ERRORS{'UNKNOWN'};
  50
  51 Getopt::Long::Configure('bundling');
  52 $status = process_arguments();
  53 if ($status){
  54         print "ERROR: processing arguments\n";
  55         exit $ERRORS{"UNKNOWN"};
  56 }
  57
  58 $SIG{'ALRM'} = sub {
  59         print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
  60         exit $ERRORS{"WARNING"};
  61 };
  62 alarm($opt_t);
  63
  64 # switch based on MTA
  65
  66 if ($mailq eq "sendmail") {
  67
  68         ## open mailq
  69         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
  70                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
  71                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
  72                         exit $ERRORS{'UNKNOWN'};
  73                 }
  74         }elsif( defined $utils::PATH_TO_MAILQ){
  75                 unless (-x $utils::PATH_TO_MAILQ) {
  76                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
  77                         exit $ERRORS{'UNKNOWN'};
  78                 }
  79         } else {
  80                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
  81                 exit $ERRORS{'UNKNOWN'};
  82         }
  83 #  single queue empty
  84 ##/var/spool/mqueue is empty
  85 #  single queue: 1
  86 ##                /var/spool/mqueue (1 request)
  87 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
  88 ##h32E30p01763     2782 Wed Apr  2 15:03 <silvaATkpnqwest.pt>
  89 ##      8BITMIME
  90 ##                                       <silvaATeunet.pt>
  91
  92 #  multi queue empty
  93 ##/var/spool/mqueue/q0/df is empty
  94 ##/var/spool/mqueue/q1/df is empty
  95 ##/var/spool/mqueue/q2/df is empty
  96 ##/var/spool/mqueue/q3/df is empty
  97 ##/var/spool/mqueue/q4/df is empty
  98 ##/var/spool/mqueue/q5/df is empty
  99 ##/var/spool/mqueue/q6/df is empty
 100 ##/var/spool/mqueue/q7/df is empty
 101 ##/var/spool/mqueue/q8/df is empty
 102 ##/var/spool/mqueue/q9/df is empty
 103 ##/var/spool/mqueue/qA/df is empty
 104 ##/var/spool/mqueue/qB/df is empty
 105 ##/var/spool/mqueue/qC/df is empty
 106 ##/var/spool/mqueue/qD/df is empty
 107 ##/var/spool/mqueue/qE/df is empty
 108 ##/var/spool/mqueue/qF/df is empty
 109 ##                Total Requests: 0
 110 #  multi queue: 1
 111 ##/var/spool/mqueue/q0/df is empty
 112 ##/var/spool/mqueue/q1/df is empty
 113 ##/var/spool/mqueue/q2/df is empty
 114 ##                /var/spool/mqueue/q3/df (1 request)
 115 ##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
 116 ##h32De2f23534*      48 Wed Apr  2 14:40 nocol
 117 ##                                       nouserATEUnet.pt
 118 ##                                       canau
 119 ##/var/spool/mqueue/q4/df is empty
 120 ##/var/spool/mqueue/q5/df is empty
 121 ##/var/spool/mqueue/q6/df is empty
 122 ##/var/spool/mqueue/q7/df is empty
 123 ##/var/spool/mqueue/q8/df is empty
 124 ##/var/spool/mqueue/q9/df is empty
 125 ##/var/spool/mqueue/qA/df is empty
 126 ##/var/spool/mqueue/qB/df is empty
 127 ##/var/spool/mqueue/qC/df is empty
 128 ##/var/spool/mqueue/qD/df is empty
 129 ##/var/spool/mqueue/qE/df is empty
 130 ##/var/spool/mqueue/qF/df is empty
 131 ##                Total Requests: 1
 132
 133
 134         while (<MAILQ>) {
 135
 136                 # match email addr on queue listing
 137                 if ( (/<.*@.*\.(\w+\.\w+)>/) || (/<.*@(\w+\.\w+)>/) ) {
 138                         my $domain = $1;
 139                         if (/^\w+/) {
 140                         print "$utils::PATH_TO_MAILQ = srcdomain = $domain \n" if $verbose ;
 141                     $srcdomains{$domain} ++;
 142                         }
 143                         next;
 144                 }
 145
 146                 #
 147                 # ...
 148                 # sendmail considers a message with more than one destiny, say N, to the same MX
 149                 # to have N messages in queue.
 150                 # we will only consider one in this code
 151                 if (( /\s\(reply:\sread\serror\sfrom\s.*\.(\w+\.\w+)\.$/ ) || ( /\s\(reply:\sread\serror\sfrom\s(\w+\.\w+)\.$/ ) ||
 152                         ( /\s\(timeout\swriting\smessage\sto\s.*\.(\w+\.\w+)\.:/ ) || ( /\s\(timeout\swriting\smessage\sto\s(\w+\.\w+)\.:/ ) ||
 153                         ( /\s\(host\smap:\slookup\s\(.*\.(\w+\.\w+)\):/ ) || ( /\s\(host\smap:\slookup\s\((\w+\.\w+)\):/ ) ||
 154                         ( /\s\(Deferred:\s.*\s.*\.(\w+\.\w+)\.\)/ ) || ( /\s\(Deferred:\s.*\s(\w+\.\w+)\.\)/ ) ) {
 155
 156                         print "$utils::PATH_TO_MAILQ = dstdomain = $1 \n" if $verbose ;
 157                         $dstdomains{$1} ++;
 158                 }
 159
 160                 if (/\s+\(I\/O\serror\)/) {
 161                         print "$utils::PATH_TO_MAILQ = dstdomain = UNKNOWN \n" if $verbose ;
 162                         $dstdomains{'UNKNOWN'} ++;
 163                 }
 164
 165                 # Finally look at the overall queue length
 166                 #
 167                 if (/mqueue/) {
 168                         print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
 169                         if (/ \((\d+) request/) {
 170                 #
 171                     # single queue: first line
 172                     # multi queue: one for each queue. overwrite on multi queue below
 173                   $msg_q = $1 ;
 174                         }
 175                 } elsif (/^\s+Total\sRequests:\s(\d+)$/i) {
 176                         print "$utils::PATH_TO_MAILQ = $_ \n" if $verbose ;
 177                         #
 178                         # multi queue: last line
 179                         $msg_q = $1 ;
 180                 }
 181
 182         }
 183
 184
 185         ## close mailq
 186
 187         close (MAILQ);
 188
 189         if ( $? ) {
 190                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 191                 exit $ERRORS{CRITICAL};
 192         }
 193
 194         ## shut off the alarm
 195         alarm(0);
 196
 197
 198
 199         ## now check the queue length(s)
 200
 201         if ($msg_q == 0) {
 202                 $msg = "OK: mailq is empty";
 203                 $state = $ERRORS{'OK'};
 204         } else {
 205                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 206
 207                 # overall queue length
 208                 if ($msg_q < $opt_w) {
 209                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 210                         $state = $ERRORS{'OK'};
 211                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 212                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 213                         $state = $ERRORS{'WARNING'};
 214                 }else {
 215                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 216                         $state = $ERRORS{'CRITICAL'};
 217                 }
 218
 219                 # check for domain specific queue lengths if requested
 220                 if (defined $opt_W) {
 221
 222                         # Apply threshold to queue lengths FROM domain
 223                         my @srckeys = sort { $srcdomains{$b} <=> $srcdomains{$a} } keys %srcdomains;
 224           my $srcmaxkey = $srckeys[0];
 225         print "src max is $srcmaxkey with $srcdomains{$srcmaxkey} messages\n" if $verbose;
 226
 227                         if ($srcdomains{$srcmaxkey} >= $opt_W && $srcdomains{$srcmaxkey} < $opt_C) {
 228                                 if ($state == $ERRORS{'OK'}) {
 229                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 230                                         $state = $ERRORS{'WARNING'};
 231                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
 232                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 233                                 } else {
 234                                         $msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 235                                         $state = $ERRORS{'WARNING'};
 236                                 }
 237           } elsif ($srcdomains{$srcmaxkey} >= $opt_C) {
 238                                 if ($state == $ERRORS{'OK'}) {
 239                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C)";
 240                                         $state = $ERRORS{'CRITICAL'};
 241                                 } elsif ($state == $ERRORS{'WARNING'}) {
 242                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C) -and- " . $msg;
 243                                         $msg =~ s/WARNING: //;
 244                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
 245                                         $msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 246                                 } else {
 247                                         $msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
 248                                         $state = $ERRORS{'CRITICAL'};
 249                                 }
 250             } else {
 251                                 if ($srcdomains{$srcmaxkey} > 0) {
 252                                         $msg .= " $srcdomains{$srcmaxkey} msgs. FROM $srcmaxkey is below threshold ($opt_W/$opt_C)";
 253                                 }
 254                         }
 255
 256                         # Apply threshold to queue lengths TO domain
 257                         my @dstkeys = sort { $dstdomains{$b} <=> $dstdomains{$a} } keys %dstdomains;
 258             my $dstmaxkey = $dstkeys[0];
 259           print "dst max is $dstmaxkey with $dstdomains{$dstmaxkey} messages\n" if $verbose;
 260
 261                         if ($dstdomains{$dstmaxkey} >= $opt_W && $dstdomains{$dstmaxkey} < $opt_C) {
 262                                 if ($state == $ERRORS{'OK'}) {
 263                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 264                                         $state = $ERRORS{'WARNING'};
 265                                 } elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
 266                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 267                                 } else {
 268                                         $msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 269                                         $state = $ERRORS{'WARNING'};
 270                                 }
 271                         } elsif ($dstdomains{$dstmaxkey} >= $opt_C) {
 272                                 if ($state == $ERRORS{'OK'}) {
 273                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C)";
 274                                         $state = $ERRORS{'CRITICAL'};
 275                                 } elsif ($state == $ERRORS{'WARNING'}) {
 276                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C) -and- " . $msg;
 277                                         $msg =~ s/WARNING: //;
 278                                 } elsif ($state == $ERRORS{'CRITICAL'}) {
 279                                         $msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 280                                 } else {
 281                                         $msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
 282                                         $state = $ERRORS{'CRITICAL'};
 283                                 }
 284                         } else {
 285                                 if ($dstdomains{$dstmaxkey} > 0) {
 286                                         $msg .= " $dstdomains{$dstmaxkey} msgs. TO $dstmaxkey is below threshold ($opt_W/$opt_C)";
 287                                 }
 288                         }
 289
 290                 } # End of queue length thresholds
 291
 292         }
 293
 294 } # end of ($mailq eq "sendmail")
 295 elsif ( $mailq eq "postfix" ) {
 296
 297      ## open mailq
 298         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 299                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 300                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 301                         exit $ERRORS{'UNKNOWN'};
 302                 }
 303         }elsif( defined $utils::PATH_TO_MAILQ){
 304                 unless (-x $utils::PATH_TO_MAILQ) {
 305                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 306                         exit $ERRORS{'UNKNOWN'};
 307                 }
 308         } else {
 309                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 310                 exit $ERRORS{'UNKNOWN'};
 311         }
 312
 313
 314         @lines = reverse <MAILQ>;
 315
 316         # close qmail-qstat
 317         close MAILQ;
 318
 319         if ( $? ) {
 320                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 321                 exit $ERRORS{CRITICAL};
 322         }
 323
 324         ## shut off the alarm
 325         alarm(0);
 326
 327         # check queue length
 328         if ($lines[0]=~/Kbytes in (\d+)/) {
 329                 $msg_q = $1 ;
 330         }elsif ($lines[0]=~/Mail queue is empty/) {
 331                 $msg_q = 0;
 332         }else{
 333                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 334                 exit   $ERRORS{'UNKNOWN'};
 335         }
 336
 337         # check messages not processed
 338         #if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 339         #        my $msg_p = $1;
 340         #}else{
 341         #        print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 342         #        exit  $ERRORS{'UNKNOWN'};
 343         #}
 344
 345         # check queue length(s)
 346         if ($msg_q == 0){
 347                 $msg = "OK: mailq reports queue is empty";
 348                 $state = $ERRORS{'OK'};
 349         } else {
 350                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 351
 352                 # overall queue length
 353                 if ($msg_q < $opt_w) {
 354                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 355                         $state = $ERRORS{'OK'};
 356                 }elsif  ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 357                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 358                         $state = $ERRORS{'WARNING'};
 359                 }else {
 360                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 361                         $state = $ERRORS{'CRITICAL'};
 362                 }
 363
 364                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 365                 # are defined)
 366
 367                 #if (defined $opt_W) {
 368                 #        $msg .= "[Preprocessed = $msg_p]";
 369                 #        if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 370                 #                $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 371                 #        }elsif ($msg_p >= $opt_C ) {
 372                 #                $state = $ERRORS{"CRITICAL"} ;
 373                 #        }
 374                 #}
 375         }
 376 } # end of ($mailq eq "postfix")
 377 elsif ( $mailq eq "qmail" ) {
 378
 379         # open qmail-qstat
 380         if ( defined $utils::PATH_TO_QMAIL_QSTAT && -x $utils::PATH_TO_QMAIL_QSTAT ) {
 381                 if (! open (MAILQ, "$utils::PATH_TO_QMAIL_QSTAT | " ) ) {
 382                         print "ERROR: could not open $utils::PATH_TO_QMAIL_QSTAT \n";
 383                         exit $ERRORS{'UNKNOWN'};
 384                 }
 385         }elsif( defined $utils::PATH_TO_QMAIL_QSTAT){
 386                 unless (-x $utils::PATH_TO_QMAIL_QSTAT) {
 387                         print "ERROR: $utils::PATH_TO_QMAIL_QSTAT is not executable by (uid $>:gid($)))\n";
 388                         exit $ERRORS{'UNKNOWN'};
 389                 }
 390         } else {
 391                 print "ERROR: \$utils::PATH_TO_QMAIL_QSTAT is not defined\n";
 392                 exit $ERRORS{'UNKNOWN'};
 393         }
 394
 395         @lines = <MAILQ>;
 396
 397         # close qmail-qstat
 398         close MAILQ;
 399
 400         if ( $? ) {
 401                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 402                 exit $ERRORS{CRITICAL};
 403         }
 404
 405         ## shut off the alarm
 406         alarm(0);
 407
 408         # check queue length
 409         if ($lines[0]=~/^messages in queue: (\d+)/) {
 410                 $msg_q = $1 ;
 411         }else{
 412                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 413                 exit   $ERRORS{'UNKNOWN'};
 414         }
 415
 416         # check messages not processed
 417         if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
 418                 my $msg_p = $1;
 419         }else{
 420                 print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
 421                 exit  $ERRORS{'UNKNOWN'};
 422         }
 423
 424
 425         # check queue length(s)
 426         if ($msg_q == 0){
 427                 $msg = "OK: qmail-qstat reports queue is empty";
 428                 $state = $ERRORS{'OK'};
 429         } else {
 430                 print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
 431
 432                 # overall queue length
 433                 if ($msg_q < $opt_w) {
 434                         $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 435                         $state = $ERRORS{'OK'};
 436                 }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 437                         $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 438                         $state = $ERRORS{'WARNING'};
 439                 }else {
 440                         $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 441                         $state = $ERRORS{'CRITICAL'};
 442                 }
 443
 444                 # check messages not yet preprocessed (only compare is $opt_W and $opt_C
 445                 # are defined)
 446
 447                 if (defined $opt_W) {
 448                         $msg .= "[Preprocessed = $msg_p]";
 449                         if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
 450                                 $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"}  ;
 451                         }elsif ($msg_p >= $opt_C ) {
 452                                 $state = $ERRORS{"CRITICAL"} ;
 453                         }
 454                 }
 455         }
 456
 457
 458
 459 } # end of ($mailq eq "qmail")
 460 elsif ( $mailq eq "exim" ) {
 461         ## open mailq
 462         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 463                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 464                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 465                         exit $ERRORS{'UNKNOWN'};
 466                 }
 467         }elsif( defined $utils::PATH_TO_MAILQ){
 468                 unless (-x $utils::PATH_TO_MAILQ) {
 469                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 470                         exit $ERRORS{'UNKNOWN'};
 471                 }
 472         } else {
 473                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 474                 exit $ERRORS{'UNKNOWN'};
 475         }
 476
 477         while (<MAILQ>) {
 478             #22m  1.7K 19aEEr-0007hx-Dy <> *** frozen ***
 479             #root@exlixams.glups.fr
 480
 481             if (/\s[\w\d]{6}-[\w\d]{6}-[\w\d]{2}\s/) { # message id 19aEEr-0007hx-Dy
 482                 $msg_q++ ;
 483             }
 484         }
 485         close(MAILQ) ;
 486
 487         if ( $? ) {
 488                 print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
 489                 exit $ERRORS{CRITICAL};
 490         }
 491         if ($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")
 502
 503 elsif ( $mailq eq "nullmailer" ) {
 504         ## open mailq
 505         if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
 506                 if (! open (MAILQ, "$utils::PATH_TO_MAILQ | " ) ) {
 507                         print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
 508                         exit $ERRORS{'UNKNOWN'};
 509                 }
 510         }elsif( defined $utils::PATH_TO_MAILQ){
 511                 unless (-x $utils::PATH_TO_MAILQ) {
 512                         print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
 513                         exit $ERRORS{'UNKNOWN'};
 514                 }
 515         } else {
 516                 print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
 517                 exit $ERRORS{'UNKNOWN'};
 518         }
 519
 520         while (<MAILQ>) {
 521             #2006-06-22 16:00:00  282 bytes
 522
 523             if (/^[1-9][0-9]*-[01][0-9]-[0-3][0-9]\s[0-2][0-9]\:[0-2][0-9]\:[0-2][0-9]\s{2}[0-9]+\sbytes$/) {
 524                 $msg_q++ ;
 525             }
 526         }
 527         close(MAILQ) ;
 528         if ($msg_q < $opt_w) {
 529                 $msg = "OK: mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
 530                 $state = $ERRORS{'OK'};
 531         }elsif ($msg_q >= $opt_w  && $msg_q < $opt_c) {
 532                 $msg = "WARNING: mailq is $msg_q (threshold w = $opt_w)";
 533                 $state = $ERRORS{'WARNING'};
 534         }else {
 535                 $msg = "CRITICAL: mailq is $msg_q (threshold c = $opt_c)";
 536                 $state = $ERRORS{'CRITICAL'};
 537         }
 538 } # end of ($mailq eq "nullmailer")
 539
 540 # Perfdata support
 541 print "$msg|unsent=$msg_q;$opt_w;$opt_c;0\n";
 542 exit $state;
 543
 544
 545 #####################################
 546 #### subs
 547
 548
 549 sub process_arguments(){
 550         GetOptions
 551                 ("V"   => \$opt_V, "version"    => \$opt_V,
 552                  "v"   => \$opt_v, "verbose"    => \$opt_v,
 553                  "h"   => \$opt_h, "help"               => \$opt_h,
 554                  "M:s" => \$opt_M, "mailserver:s" => \$opt_M, # mailserver (default     sendmail)
 555                  "w=i" => \$opt_w, "warning=i"  => \$opt_w,   # warning if above this number
 556                  "c=i" => \$opt_c, "critical=i" => \$opt_c,       # critical if above this number
 557                  "t=i" => \$opt_t, "timeout=i"  => \$opt_t
 558                  );
 559
 560         if ($opt_V) {
 561                 print_revision($PROGNAME,'@NP_VERSION@');
 562                 exit $ERRORS{'OK'};
 563         }
 564
 565         if ($opt_h) {
 566                 print_help();
 567                 exit $ERRORS{'OK'};
 568         }
 569
 570         if (defined $opt_v ){
 571                 $verbose = $opt_v;
 572         }
 573
 574         unless (defined $opt_t) {
 575                 $opt_t = $utils::TIMEOUT ;      # default timeout
 576         }
 577
 578         unless (  defined $opt_w &&  defined $opt_c ) {
 579                 print_usage();
 580                 exit $ERRORS{'UNKNOWN'};
 581         }
 582
 583         if ( $opt_w >= $opt_c) {
 584                 print "Warning (-w) cannot be greater than Critical (-c)!\n";
 585                 exit $ERRORS{'UNKNOWN'};
 586         }
 587
 588         if (defined $opt_W && ! defined !$opt_C) {
 589                 print "Need -C if using -W\n";
 590                 exit $ERRORS{'UNKNOWN'};
 591         }elsif(defined $opt_W && defined $opt_C) {
 592                 if ($opt_W >= $opt_C) {
 593                         print "Warning (-W) cannot be greater than Critical (-C)!\n";
 594                         exit $ERRORS{'UNKNOWN'};
 595                 }
 596         }
 597
 598         if (defined $opt_M) {
 599                 if ($opt_M =~ /^(sendmail|qmail|postfix|exim|nullmailer)$/) {
 600                         $mailq = $opt_M ;
 601                 }elsif( $opt_M eq ''){
 602                         $mailq = 'sendmail';
 603                 }else{
 604                         print "-M: $opt_M is not supported\n";
 605                         exit $ERRORS{'UNKNOWN'};
 606                 }
 607         }else{
 608                 if (defined $utils::PATH_TO_QMAIL_QSTAT
 609                     && -x $utils::PATH_TO_QMAIL_QSTAT)
 610                 {
 611                         $mailq = 'qmail';
 612                 }
 613                 elsif (-d '/var/lib/postfix' || -d '/var/local/lib/postfix'
 614                        || -e '/usr/sbin/postfix' || -e '/usr/local/sbin/postfix')
 615                 {
 616                         $mailq = 'postfix';
 617                 }
 618                 elsif (-d '/usr/lib/exim4' || -d '/usr/local/lib/exim4'
 619                        || -e '/usr/sbin/exim' || -e '/usr/local/sbin/exim')
 620                 {
 621                         $mailq = 'exim';
 622                 }
 623                 elsif (-d '/usr/lib/nullmailer' || -d '/usr/local/lib/nullmailer'
 624                        || -e '/usr/sbin/nullmailer-send'
 625                        || -e '/usr/local/sbin/nullmailer-send')
 626                 {
 627                         $mailq = 'nullmailer';
 628                 }
 629                 else {
 630                         $mailq = 'sendmail';
 631                 }
 632         }
 633
 634         return $ERRORS{'OK'};
 635 }
 636
 637 sub print_usage () {
 638         print "Usage: $PROGNAME -w <warn> -c <crit> [-W <warn>] [-C <crit>] [-M <MTA>] [-t <timeout>] [-v verbose]\n";
 639 }
 640
 641 sub print_help () {
 642         print_revision($PROGNAME,'@NP_VERSION@');
 643         print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n";
 644         print "\n";
 645         print_usage();
 646         print "\n";
 647         print "   Checks the number of messages in the mail queue (supports multiple sendmail queues, qmail)\n";
 648         print "   Feedback/patches to support non-sendmail mailqueue welcome\n\n";
 649         print "-w (--warning)   = Min. number of messages in queue to generate warning\n";
 650         print "-c (--critical)  = Min. number of messages in queue to generate critical alert ( w < c )\n";
 651         print "-W (--Warning)   = Min. number of messages for same domain in queue to generate warning\n";
 652         print "-C (--Critical)  = Min. number of messages for same domain in queue to generate critical alert ( W < C )\n";
 653         print "-t (--timeout)   = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
 654         print "-M (--mailserver) = [ sendmail | qmail | postfix | exim | nullmailer ] (default = sendmail)\n";
 655         print "-h (--help)\n";
 656         print "-V (--version)\n";
 657         print "-v (--verbose)   = debugging output\n";
 658         print "\n\n";
 659         print "Note: -w and -c are required arguments.  -W and -C are optional.\n";
 660         print " -W and -C are applied to domains listed on the queues - both FROM and TO. (sendmail)\n";
 661         print " -W and -C are applied message not yet preproccessed. (qmail)\n";
 662         print " This plugin uses the system mailq command (sendmail) or qmail-stat (qmail)\n";
 663         print " to look at the queues. Mailq can usually only be accessed by root or \n";
 664         print " a TrustedUser. You will have to set appropriate permissions for the plugin to work.\n";
 665         print "";
 666         print "\n\n";
 667         support();
 668 }