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#!/usr/bin/perl -w
# check_mailq - check to see how many messages are in the smtp queue awating
# transmittal.
#
# Initial version support sendmail's mailq command
# Support for mutiple sendmail queues (Carlos Canau)
# Support for qmail (Benjamin Schmid)
# License Information:
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA
#
############################################################################
use POSIX;
use strict;
use Getopt::Long;
use vars qw($opt_V $opt_h $opt_v $verbose $PROGNAME $opt_w $opt_c $opt_t $opt_s $opt_d
$opt_M $mailq $status $state $msg $msg_q $msg_p $opt_W $opt_C $mailq $mailq_args
@lines %srcdomains %dstdomains);
use FindBin;
use lib "$FindBin::Bin";
use lib qw( /usr/lib64/nagios/plugins /usr/lib/nagios/plugins );
use utils qw(%ERRORS &print_revision &support &usage );
my ($sudo);
sub print_help ();
sub print_usage ();
sub process_arguments ();
$ENV{'PATH'}='/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin';
$ENV{'BASH_ENV'}='';
$ENV{'ENV'}='';
$PROGNAME = "check_mailq";
$mailq = 'sendmail'; # default
$msg_q = 0 ;
$msg_p = 0 ;
# If appended, must start with a space
$mailq_args = '' ;
$state = $ERRORS{'UNKNOWN'};
Getopt::Long::Configure('bundling');
$status = process_arguments();
if ($status){
print "ERROR: processing arguments\n";
exit $ERRORS{"UNKNOWN"};
}
if ($opt_d) {
$mailq_args = $mailq_args . ' -C ' . $opt_d;
}
if ($opt_s) {
$sudo = `which sudo`;
chop $sudo;
if ( $sudo eq "") {
print "ERROR: Cannot execute sudo\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
$sudo = "";
}
$SIG{'ALRM'} = sub {
print ("ERROR: timed out waiting for $utils::PATH_TO_MAILQ \n");
exit $ERRORS{"WARNING"};
};
alarm($opt_t);
# switch based on MTA
if ($mailq eq "sendmail") {
## open mailq
if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_MAILQ | " ) ) {
print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_MAILQ){
unless (-x $utils::PATH_TO_MAILQ) {
print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
# single queue empty
##/var/spool/mqueue is empty
# single queue: 1
## /var/spool/mqueue (1 request)
##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
##h32E30p01763 2782 Wed Apr 2 15:03 <silvaATkpnqwest.pt>
## 8BITMIME
## <silvaATeunet.pt>
# multi queue empty
##/var/spool/mqueue/q0/df is empty
##/var/spool/mqueue/q1/df is empty
##/var/spool/mqueue/q2/df is empty
##/var/spool/mqueue/q3/df is empty
##/var/spool/mqueue/q4/df is empty
##/var/spool/mqueue/q5/df is empty
##/var/spool/mqueue/q6/df is empty
##/var/spool/mqueue/q7/df is empty
##/var/spool/mqueue/q8/df is empty
##/var/spool/mqueue/q9/df is empty
##/var/spool/mqueue/qA/df is empty
##/var/spool/mqueue/qB/df is empty
##/var/spool/mqueue/qC/df is empty
##/var/spool/mqueue/qD/df is empty
##/var/spool/mqueue/qE/df is empty
##/var/spool/mqueue/qF/df is empty
## Total Requests: 0
# multi queue: 1
##/var/spool/mqueue/q0/df is empty
##/var/spool/mqueue/q1/df is empty
##/var/spool/mqueue/q2/df is empty
## /var/spool/mqueue/q3/df (1 request)
##----Q-ID---- --Size-- -----Q-Time----- ------------Sender/Recipient------------
##h32De2f23534* 48 Wed Apr 2 14:40 nocol
## nouserATEUnet.pt
## canau
##/var/spool/mqueue/q4/df is empty
##/var/spool/mqueue/q5/df is empty
##/var/spool/mqueue/q6/df is empty
##/var/spool/mqueue/q7/df is empty
##/var/spool/mqueue/q8/df is empty
##/var/spool/mqueue/q9/df is empty
##/var/spool/mqueue/qA/df is empty
##/var/spool/mqueue/qB/df is empty
##/var/spool/mqueue/qC/df is empty
##/var/spool/mqueue/qD/df is empty
##/var/spool/mqueue/qE/df is empty
##/var/spool/mqueue/qF/df is empty
## Total Requests: 1
while (<MAILQ>) {
# match email addr on queue listing
if ( (/<.*@.*\.(\w+\.\w+)>/) || (/<.*@(\w+\.\w+)>/) ) {
my $domain = $1;
if (/^\w+/) {
print "$utils::PATH_TO_MAILQ = srcdomain = $domain \n" if $verbose ;
$srcdomains{$domain} ++;
}
next;
}
#
# ...
# sendmail considers a message with more than one destiny, say N, to the same MX
# to have N messages in queue.
# we will only consider one in this code
if (( /\s\(reply:\sread\serror\sfrom\s.*\.(\w+\.\w+)\.$/ ) || ( /\s\(reply:\sread\serror\sfrom\s(\w+\.\w+)\.$/ ) ||
( /\s\(timeout\swriting\smessage\sto\s.*\.(\w+\.\w+)\.:/ ) || ( /\s\(timeout\swriting\smessage\sto\s(\w+\.\w+)\.:/ ) ||
( /\s\(host\smap:\slookup\s\(.*\.(\w+\.\w+)\):/ ) || ( /\s\(host\smap:\slookup\s\((\w+\.\w+)\):/ ) ||
( /\s\(Deferred:\s.*\s.*\.(\w+\.\w+)\.\)/ ) || ( /\s\(Deferred:\s.*\s(\w+\.\w+)\.\)/ ) ) {
print "$utils::PATH_TO_MAILQ = dstdomain = $1 \n" if $verbose ;
$dstdomains{$1} ++;
}
if (/\s+\(I\/O\serror\)/) {
print "$utils::PATH_TO_MAILQ = dstdomain = UNKNOWN \n" if $verbose ;
$dstdomains{'UNKNOWN'} ++;
}
# Finally look at the overall queue length
#
if (/mqueue/) {
print "$utils::PATH_TO_MAILQ = $_ "if $verbose ;
if (/ \((\d+) request/) {
#
# single queue: first line
# multi queue: one for each queue. overwrite on multi queue below
$msg_q = $1 ;
}
} elsif (/^\s+Total\sRequests:\s(\d+)$/i) {
print "$utils::PATH_TO_MAILQ = $_ \n" if $verbose ;
#
# multi queue: last line
$msg_q = $1 ;
}
}
## close mailq
close (MAILQ);
if ( $? ) {
print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
exit $ERRORS{CRITICAL};
}
## shut off the alarm
alarm(0);
## now check the queue length(s)
if ($msg_q == 0) {
$msg = "OK: $mailq mailq is empty";
$state = $ERRORS{'OK'};
} else {
print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
# overall queue length
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
# check for domain specific queue lengths if requested
if (defined $opt_W) {
# Apply threshold to queue lengths FROM domain
my @srckeys = sort { $srcdomains{$b} <=> $srcdomains{$a} } keys %srcdomains;
my $srcmaxkey = $srckeys[0];
print "src max is $srcmaxkey with $srcdomains{$srcmaxkey} messages\n" if $verbose;
if ($srcdomains{$srcmaxkey} >= $opt_W && $srcdomains{$srcmaxkey} < $opt_C) {
if ($state == $ERRORS{'OK'}) {
$msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'WARNING'};
} elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
$msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
} else {
$msg = "WARNING: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'WARNING'};
}
} elsif ($srcdomains{$srcmaxkey} >= $opt_C) {
if ($state == $ERRORS{'OK'}) {
$msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C)";
$state = $ERRORS{'CRITICAL'};
} elsif ($state == $ERRORS{'WARNING'}) {
$msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold C = $opt_C) -and- " . $msg;
$msg =~ s/WARNING: //;
} elsif ($state == $ERRORS{'CRITICAL'}) {
$msg .= " -and- $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
} else {
$msg = "CRITICAL: $srcdomains{$srcmaxkey} messages in queue FROM $srcmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'CRITICAL'};
}
} else {
if ($srcdomains{$srcmaxkey} > 0) {
$msg .= " $srcdomains{$srcmaxkey} msgs. FROM $srcmaxkey is below threshold ($opt_W/$opt_C)";
}
}
# Apply threshold to queue lengths TO domain
my @dstkeys = sort { $dstdomains{$b} <=> $dstdomains{$a} } keys %dstdomains;
my $dstmaxkey = $dstkeys[0];
print "dst max is $dstmaxkey with $dstdomains{$dstmaxkey} messages\n" if $verbose;
if ($dstdomains{$dstmaxkey} >= $opt_W && $dstdomains{$dstmaxkey} < $opt_C) {
if ($state == $ERRORS{'OK'}) {
$msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'WARNING'};
} elsif (($state == $ERRORS{'WARNING'}) || ($state == $ERRORS{'CRITICAL'})){
$msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
} else {
$msg = "WARNING: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'WARNING'};
}
} elsif ($dstdomains{$dstmaxkey} >= $opt_C) {
if ($state == $ERRORS{'OK'}) {
$msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C)";
$state = $ERRORS{'CRITICAL'};
} elsif ($state == $ERRORS{'WARNING'}) {
$msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold C = $opt_C) -and- " . $msg;
$msg =~ s/WARNING: //;
} elsif ($state == $ERRORS{'CRITICAL'}) {
$msg .= " -and- $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
} else {
$msg = "CRITICAL: $dstdomains{$dstmaxkey} messages in queue TO $dstmaxkey (threshold W = $opt_W)";
$state = $ERRORS{'CRITICAL'};
}
} else {
if ($dstdomains{$dstmaxkey} > 0) {
$msg .= " $dstdomains{$dstmaxkey} msgs. TO $dstmaxkey is below threshold ($opt_W/$opt_C)";
}
}
} # End of queue length thresholds
}
} # end of ($mailq eq "sendmail")
elsif ( $mailq eq "postfix" ) {
## open mailq
if ( defined $utils::PATH_TO_MAILQ ) {
if (-x $utils::PATH_TO_MAILQ) {
if (! open (MAILQ, "$utils::PATH_TO_MAILQ$mailq_args | ")) {
print "ERROR: $utils::PATH_TO_MAILQ$mailq_args returned an error\n";
exit $ERRORS{'UNKNOWN'};
}
}
else {
if ( $sudo ne "" ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_MAILQ$mailq_args | " ) ) {
print "ERROR: $utils::PATH_TO_MAILQ$mailq_args is not executable with sudo by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: $utils::PATH_TO_MAILQ$mailq_args is not executable by (uid $>:gid($))) and sudo is not set in utils.pm\n";
exit $ERRORS{'UNKNOWN'};
}
}
} else {
print "ERROR: \$utils::PATH_TO_MAILQ is not defined in utils.pm\n";
exit $ERRORS{'UNKNOWN'};
}
@lines = reverse <MAILQ>;
if ( $? ) {
print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ$mailq_args",$/;
exit $ERRORS{CRITICAL};
}
## shut off the alarm
alarm(0);
# check queue length
if ($lines[0]=~/Kbytes in (\d+)/) {
$msg_q = $1 ;
}elsif ($lines[0]=~/Mail queue is empty/) {
$msg_q = 0;
}else{
print "Couldn't match $utils::PATH_TO_MAILQ$mailq_args output\n";
exit $ERRORS{'UNKNOWN'};
}
# check messages not processed
#if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
# my $msg_p = $1;
#}else{
# print "Couldn't match $utils::PATH_TO_MAILQ output\n";
# exit $ERRORS{'UNKNOWN'};
#}
# check queue length(s)
if ($msg_q == 0){
$msg = "OK: $mailq mailq reports queue is empty";
$state = $ERRORS{'OK'};
} else {
print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
# overall queue length
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
# check messages not yet preprocessed (only compare is $opt_W and $opt_C
# are defined)
#if (defined $opt_W) {
# $msg .= "[Preprocessed = $msg_p]";
# if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
# $state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"} ;
# }elsif ($msg_p >= $opt_C ) {
# $state = $ERRORS{"CRITICAL"} ;
# }
#}
}
} # end of ($mailq eq "postfix")
elsif ( $mailq eq "qmail" ) {
# open qmail-qstat
if ( defined $utils::PATH_TO_QMAIL_QSTAT && -x $utils::PATH_TO_QMAIL_QSTAT ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_QMAIL_QSTAT | " ) ) {
print "ERROR: could not open $utils::PATH_TO_QMAIL_QSTAT \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_QMAIL_QSTAT){
unless (-x $utils::PATH_TO_QMAIL_QSTAT) {
print "ERROR: $utils::PATH_TO_QMAIL_QSTAT is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_QMAIL_QSTAT is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
@lines = <MAILQ>;
# close qmail-qstat
close MAILQ;
if ( $? ) {
print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
exit $ERRORS{CRITICAL};
}
## shut off the alarm
alarm(0);
# check queue length
if ($lines[0]=~/^messages in queue: (\d+)/) {
$msg_q = $1 ;
}else{
print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
exit $ERRORS{'UNKNOWN'};
}
# check messages not processed
if ($lines[1]=~/^messages in queue but not yet preprocessed: (\d+)/) {
my $msg_p = $1;
}else{
print "Couldn't match $utils::PATH_TO_QMAIL_QSTAT output\n";
exit $ERRORS{'UNKNOWN'};
}
# check queue length(s)
if ($msg_q == 0){
$msg = "OK: qmail-qstat reports queue is empty";
$state = $ERRORS{'OK'};
} else {
print "msg_q = $msg_q warn=$opt_w crit=$opt_c\n" if $verbose;
# overall queue length
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
# check messages not yet preprocessed (only compare is $opt_W and $opt_C
# are defined)
if (defined $opt_W) {
$msg .= "[Preprocessed = $msg_p]";
if ($msg_p >= $opt_W && $msg_p < $opt_C ) {
$state = $state == $ERRORS{"CRITICAL"} ? $ERRORS{"CRITICAL"} : $ERRORS{"WARNING"} ;
}elsif ($msg_p >= $opt_C ) {
$state = $ERRORS{"CRITICAL"} ;
}
}
}
} # end of ($mailq eq "qmail")
elsif ( $mailq eq "exim" ) {
## open mailq
if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_MAILQ | " ) ) {
print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_MAILQ){
unless (-x $utils::PATH_TO_MAILQ) {
print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
while (<MAILQ>) {
#22m 1.7K 19aEEr-0007hx-Dy <> *** frozen ***
#root@exlixams.glups.fr
if (/\s[\w\d]{6}-[\w\d]{6}-[\w\d]{2}\s/) { # message id 19aEEr-0007hx-Dy
$msg_q++ ;
}
}
close(MAILQ) ;
if ( $? ) {
print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_MAILQ",$/;
exit $ERRORS{CRITICAL};
}
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
} # end of ($mailq eq "exim")
elsif ( $mailq eq "opensmtpd" ) {
## open smtpctl
if ( defined $utils::PATH_TO_SMTPCTL && -x $utils::PATH_TO_SMTPCTL ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_SMTPCTL show queue | " ) ) {
print "ERROR: could not open $utils::PATH_TO_SMTPCTL \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_SMTPCTL){
unless (-x $utils::PATH_TO_SMTPCTL) {
print "ERROR: $utils::PATH_TO_SMTPCTL is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_SMTPCTL is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
while (<MAILQ>) {
# 34357f5b3f589feb|inet4|mta||f.someone@domaina.org|no-reply@domainb.com|no-reply@domainb.com|1498235412|1498581012|0|25|pending|17168|Network error on destination MXs
if (/^.*|.*|.*|.*|.*|.*|.*|.*|.*|.*|.*|.*|.*|.*$/) {
$msg_q++ ;
}
}
close(MAILQ);
if ( $? ) {
print "CRITICAL: Error code ".($?>>8)." returned from $utils::PATH_TO_SMTPCTL",$/;
exit $ERRORS{CRITICAL};
}
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
} # end of ($mailq eq "opensmtpd")
elsif ( $mailq eq "nullmailer" ) {
## open mailq
if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_MAILQ | " ) ) {
print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_MAILQ){
unless (-x $utils::PATH_TO_MAILQ) {
print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
while (<MAILQ>) {
#2006-06-22 16:00:00 282 bytes
if (/^[1-9][0-9]*-[01][0-9]-[0-3][0-9]\s[0-2][0-9]\:[0-2][0-9]\:[0-2][0-9]\s{1,2}[0-9]+\sbytes$/) {
$msg_q++ ;
}
}
close(MAILQ) ;
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
} # end of ($mailq eq "nullmailer")
elsif ( $mailq eq "opensmtp" ) {
## open mailq
if ( defined $utils::PATH_TO_MAILQ && -x $utils::PATH_TO_MAILQ ) {
if (! open (MAILQ, "$sudo $utils::PATH_TO_MAILQ | " ) ) {
print "ERROR: could not open $utils::PATH_TO_MAILQ \n";
exit $ERRORS{'UNKNOWN'};
}
}elsif( defined $utils::PATH_TO_MAILQ){
unless (-x $utils::PATH_TO_MAILQ) {
print "ERROR: $utils::PATH_TO_MAILQ is not executable by (uid $>:gid($)))\n";
exit $ERRORS{'UNKNOWN'};
}
} else {
print "ERROR: \$utils::PATH_TO_MAILQ is not defined\n";
exit $ERRORS{'UNKNOWN'};
}
$msg_q++ while (<MAILQ>);
close(MAILQ) ;
if ($msg_q < $opt_w) {
$msg = "OK: $mailq mailq ($msg_q) is below threshold ($opt_w/$opt_c)";
$state = $ERRORS{'OK'};
}elsif ($msg_q >= $opt_w && $msg_q < $opt_c) {
$msg = "WARNING: $mailq mailq is $msg_q (threshold w = $opt_w)";
$state = $ERRORS{'WARNING'};
}else {
$msg = "CRITICAL: $mailq mailq is $msg_q (threshold c = $opt_c)";
$state = $ERRORS{'CRITICAL'};
}
} # end of ($mailq eq "opensmtp")
# Perfdata support
print "$msg|unsent=$msg_q;$opt_w;$opt_c;0\n";
exit $state;
#####################################
#### subs
sub process_arguments(){
GetOptions
("V" => \$opt_V, "version" => \$opt_V,
"v" => \$opt_v, "verbose" => \$opt_v,
"h" => \$opt_h, "help" => \$opt_h,
"M:s" => \$opt_M, "mailserver:s" => \$opt_M, # mailserver (default sendmail)
"w=i" => \$opt_w, "warning=i" => \$opt_w, # warning if above this number
"c=i" => \$opt_c, "critical=i" => \$opt_c, # critical if above this number
"t=i" => \$opt_t, "timeout=i" => \$opt_t,
"s" => \$opt_s, "sudo" => \$opt_s,
"d:s" => \$opt_d, "configdir:s" => \$opt_d
);
if ($opt_V) {
print_revision($PROGNAME,'2.2.1');
exit $ERRORS{'OK'};
}
if ($opt_h) {
print_help();
exit $ERRORS{'OK'};
}
if (defined $opt_v ){
$verbose = $opt_v;
}
unless (defined $opt_t) {
$opt_t = $utils::TIMEOUT ; # default timeout
}
unless ( defined $opt_w && defined $opt_c ) {
print_usage();
exit $ERRORS{'UNKNOWN'};
}
if ( $opt_w >= $opt_c) {
print "Warning (-w) cannot be greater than Critical (-c)!\n";
exit $ERRORS{'UNKNOWN'};
}
if (defined $opt_W && ! defined !$opt_C) {
print "Need -C if using -W\n";
exit $ERRORS{'UNKNOWN'};
}elsif(defined $opt_W && defined $opt_C) {
if ($opt_W >= $opt_C) {
print "Warning (-W) cannot be greater than Critical (-C)!\n";
exit $ERRORS{'UNKNOWN'};
}
}
if (defined $opt_M) {
if ($opt_M =~ /^(sendmail|qmail|postfix|exim|nullmailer|opensmtpd)$/) {
$mailq = $opt_M ;
}elsif( $opt_M eq ''){
$mailq = 'sendmail';
}else{
print "-M: $opt_M is not supported\n";
exit $ERRORS{'UNKNOWN'};
}
}else{
if (defined $utils::PATH_TO_QMAIL_QSTAT
&& -x $utils::PATH_TO_QMAIL_QSTAT)
{
$mailq = 'qmail';
}
elsif (-d '/var/lib/postfix' || -d '/var/local/lib/postfix'
|| -e '/usr/sbin/postfix' || -e '/usr/local/sbin/postfix')
{
$mailq = 'postfix';
}
elsif (-d '/usr/lib/exim4' || -d '/usr/local/lib/exim4'
|| -e '/usr/sbin/exim' || -e '/usr/local/sbin/exim')
{
$mailq = 'exim';
}
elsif (-d '/usr/lib/nullmailer' || -d '/usr/local/lib/nullmailer'
|| -e '/usr/sbin/nullmailer-send'
|| -e '/usr/local/sbin/nullmailer-send')
{
$mailq = 'nullmailer';
}
elsif (defined $utils::PATH_TO_SMTPCTL && -x $utils::PATH_TO_SMTPCTL)
{
$mailq = 'opensmtpd';
}
else {
$mailq = 'sendmail';
}
}
return $ERRORS{'OK'};
}
sub print_usage () {
print "Usage: $PROGNAME -w <warn> -c <crit> [-W <warn>] [-C <crit>] [-M <MTA>] [-t <timeout>] [-s] [-d <CONFIGDIR>] [-v]\n";
}
sub print_help () {
print_revision($PROGNAME,'2.2.1');
print "Copyright (c) 2002 Subhendu Ghosh/Carlos Canau/Benjamin Schmid\n";
print "\n";
print_usage();
print "\n";
print " Checks the number of messages in the mail queue (supports multiple sendmail queues, qmail)\n";
print " Feedback/patches to support non-sendmail mailqueue welcome\n\n";
print "-w (--warning) = Min. number of messages in queue to generate warning\n";
print "-c (--critical) = Min. number of messages in queue to generate critical alert ( w < c )\n";
print "-W (--Warning) = Min. number of messages for same domain in queue to generate warning\n";
print "-C (--Critical) = Min. number of messages for same domain in queue to generate critical alert ( W < C )\n";
print "-t (--timeout) = Plugin timeout in seconds (default = $utils::TIMEOUT)\n";
print "-M (--mailserver) = [ sendmail | qmail | postfix | exim | nullmailer | opensmtpd ] (default = autodetect)\n";
print "-h (--help)\n";
print "-V (--version)\n";
print "-v (--verbose) = debugging output\n";
print "\n\n";
print "Note: -w and -c are required arguments. -W and -C are optional.\n";
print " -W and -C are applied to domains listed on the queues - both FROM and TO. (sendmail)\n";
print " -W and -C are applied message not yet preproccessed. (qmail)\n";
print " This plugin tries to autodetect which mailserver you are running,\n";
print " you can override the autodetection with -M.\n";
print " This plugin uses the system mailq command (sendmail) or qmail-stat (qmail)\n";
print " to look at the queues. Mailq can usually only be accessed by root or \n";
print " a TrustedUser. You will have to set appropriate permissions for the plugin to work.\n";
print "";
print "\n\n";
support();
}