161 lines
5 KiB
Perl
Executable file
161 lines
5 KiB
Perl
Executable file
#!@PERL@ -w
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# check_file_age.pl Copyright (C) 2003 Steven Grimm <koreth-nagios@midwinter.com>
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#
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# Checks a file's size and modification time to make sure it's not empty
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# and that it's sufficiently recent.
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#
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty
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# of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# you should have received a copy of the GNU General Public License
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# along with this program if not, write to the Free Software Foundation,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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use strict;
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use English;
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use Getopt::Long;
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use File::stat;
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use vars qw($PROGNAME);
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use FindBin;
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use lib "$FindBin::Bin";
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use utils qw (%ERRORS &print_revision &support);
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sub print_help ();
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sub print_usage ();
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my ($opt_c, $opt_f, $opt_w, $opt_C, $opt_W, $opt_h, $opt_V, $opt_i);
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my ($result, $message, $age, $size, $st, $perfdata);
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$PROGNAME="check_file_age";
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$ENV{'PATH'}='@TRUSTED_PATH@';
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$ENV{'BASH_ENV'}='';
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$ENV{'ENV'}='';
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$opt_w = 240;
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$opt_c = 600;
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$opt_f = "";
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Getopt::Long::Configure('bundling');
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GetOptions(
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"V" => \$opt_V, "version" => \$opt_V,
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"h" => \$opt_h, "help" => \$opt_h,
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"i" => \$opt_i, "ignore-missing" => \$opt_i,
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"f=s" => \$opt_f, "file" => \$opt_f,
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"w=s" => \$opt_w, "warning-age=s" => \$opt_w,
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"W=s" => \$opt_W, "warning-size=s" => \$opt_W,
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"c=s" => \$opt_c, "critical-age=s" => \$opt_c,
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"C=s" => \$opt_C, "critical-size=s" => \$opt_C);
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if ($opt_V) {
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print_revision($PROGNAME, '@NP_VERSION@');
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exit $ERRORS{'UNKNOWN'};
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}
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if ($opt_h) {
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print_help();
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exit $ERRORS{'UNKNOWN'};
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}
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$opt_f = shift unless ($opt_f);
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if (! $opt_f) {
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print "FILE_AGE UNKNOWN: No file specified\n";
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exit $ERRORS{'UNKNOWN'};
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}
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# Check that file exists (can be directory or link)
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unless (-e $opt_f) {
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if ($opt_i) {
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$result = 'OK';
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print "FILE_AGE $result: $opt_f doesn't exist, but ignore-missing was set\n";
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exit $ERRORS{$result};
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} else {
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print "FILE_AGE CRITICAL: File not found - $opt_f\n";
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exit $ERRORS{'CRITICAL'};
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}
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}
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$st = File::stat::stat($opt_f);
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$age = time - $st->mtime;
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$size = $st->size;
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$result = 'OK';
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if ($opt_c !~ m/^\d+$/ or ($opt_C and $opt_C !~ m/^\d+$/)
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or $opt_w !~ m/^\d+$/ or ($opt_W and $opt_W !~ m/^\d+$/)) {
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# range has been specified so use M::P::R to process
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require Monitoring::Plugin::Range;
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# use permissive range defaults for size when none specified
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$opt_W = "0:" unless ($opt_W);
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$opt_C = "0:" unless ($opt_C);
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if (Monitoring::Plugin::Range->parse_range_string($opt_c)
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->check_range($age) == 1) { # 1 means it raises an alert because it's OUTSIDE the range
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$result = 'CRITICAL';
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}
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elsif (Monitoring::Plugin::Range->parse_range_string($opt_C)
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->check_range($size) == 1) {
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$result = 'CRITICAL';
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}
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elsif (Monitoring::Plugin::Range->parse_range_string($opt_w)
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->check_range($age) == 1) {
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$result = 'WARNING';
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}
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elsif (Monitoring::Plugin::Range->parse_range_string($opt_W)
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->check_range($size) == 1) {
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$result = 'WARNING';
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}
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}
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else {
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# use permissive defaults for size when none specified
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$opt_W = 0 unless ($opt_W);
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$opt_C = 0 unless ($opt_C);
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if ($age > $opt_c or $size < $opt_C) {
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$result = 'CRITICAL';
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}
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elsif ($age > $opt_w or $size < $opt_W) {
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$result = 'WARNING';
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}
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}
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$perfdata = "age=${age}s;${opt_w};${opt_c} size=${size}B;${opt_W};${opt_C};0";
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print "FILE_AGE $result: $opt_f is $age seconds old and $size bytes | $perfdata\n";
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exit $ERRORS{$result};
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sub print_usage () {
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print "Usage:\n";
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print " $PROGNAME [-w <secs>] [-c <secs>] [-W <size>] [-C <size>] [-i] -f <file>\n";
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print " $PROGNAME [-h | --help]\n";
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print " $PROGNAME [-V | --version]\n";
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}
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sub print_help () {
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print_revision($PROGNAME, '@NP_VERSION@');
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print "Copyright (c) 2003 Steven Grimm\n\n";
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print_usage();
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print "\n";
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print " -i | --ignore-missing : return OK if the file does not exist\n";
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print " <secs> File must be no more than this many seconds old (default: warn 240 secs, crit 600)\n";
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print " <size> File must be at least this many bytes long (default: file size is ignored (0 bytes))\n\n";
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print " Both <secs> and <size> can specify a range using the standard plugin syntax\n";
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print " If any of the warning and critical arguments are in range syntax (not just bare numbers)\n";
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print " then all warning and critical arguments will be interpreted as ranges.\n";
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print " To use range processing the perl module Monitoring::Plugin must be installed\n";
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print " For range syntax see https://www.monitoring-plugins.org/doc/guidelines.html#THRESHOLDFORMAT\n";
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print " It is strongly recommended when using range syntax that all four of -w, -W, -c and -C are specified\n";
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print " otherwise it is unlikely that the size test will be doing what is desired\n";
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print "\n";
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support();
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}
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