1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
#!/usr/bin/perl -Tw
# nagios check for debian (security) updates,
# based on net-snmp glue to security updates via apt-get.
# Copyright (C) 2004 SILVER SERVER Gmbh
# Copyright (C) 2004, 2005 Peter Palfrader
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
use strict;
use English;
use Getopt::Long;
$ENV{'PATH'} = '/bin:/sbin:/usr/bin:/usr/sbin';
delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
my $VERSION = '0.0.3 - $Rev$';
my $APT = '/usr/bin/apt-get';
my $USE_SUDO = 1;
my $params;
# nagios exit codes
my $OK = 0;
my $WARNING = 1;
my $CRITICAL = 2;
my $UNKNOWN = 3;
$params->{'chroots'} = [];
Getopt::Long::config('bundling');
if (!GetOptions (
'--help' => \$params->{'help'},
'--version' => \$params->{'version'},
'--sudo' => \$params->{'sudo'},
'--nosudo' => \$params->{'nosudo'},
'--verbose' => \$params->{'verbose'},
'--warnifupdates' => \$params->{'warnifupdates'},
'--chroot=s' => $params->{'chroots'},
)) {
die ("Usage: $PROGRAM_NAME [--help|--version] [--sudo|--nosudo] [--verbose]\n");
};
if ($params->{'help'}) {
print "Usage: $PROGRAM_NAME [--help|--version] [--sudo|--nosudo] [--verbose]\n";
print "Reports packages to upgrade, updating the list if necessary.\n";
print "\n";
print " --help Print this short help.\n";
print " --version Report version number.\n";
print " --sudo Use sudo to call apt-get (default).\n";
print " --nosudo Do not use sudo to call apt-get.\n";
print " --warnifupdates Exit with a WARNING status if any updates are available.\n";
print " --verbose Be a little verbose.\n";
print " --chroot=<path> Run check in path.\n";
print "\n";
print "Note that for --sudo (default) you will need entries in /etc/sudoers like these:\n";
print "nagios ALL=(ALL) NOPASSWD: /usr/bin/apt-get update\n";
print "nagios ALL=(ALL) NOPASSWD: /usr/bin/apt-get --simulate upgrade\n";
print "nagios ALL=(ALL) NOPASSWD: /usr/sbin/chroot /chroot-ia32 /usr/bin/apt-get update\n";
print "nagios ALL=(ALL) NOPASSWD: /usr/sbin/chroot /chroot-ia32 /usr/bin/apt-get --simulate upgrade\n";
print "\n";
exit (0);
};
if ($params->{'version'}) {
print "nagios-check-apt-updates $VERSION\n";
print "nagios check for availability of debian (security) updates\n";
print "Copyright (c) 2004 SILVER SERVER Gmbh\n";
print "Copyright (c) 2004,2005 Peter Palfrader <peter\@palfrader.org>\n";
exit (0);
};
if ($params->{'sudo'} && $params->{'nosudo'}) {
die ("$PROGRAM_NAME: --sudo and --nosudo are mutually exclusive.\n");
};
if ($params->{'sudo'}) {
$USE_SUDO = 1;
};
if ($params->{'nosudo'}) {
$USE_SUDO = 0;
};
if (scalar @{$params->{'chroots'}} == 0) {
$params->{'chroots'} = ['/'];
};
$SIG{'__DIE__'} = sub {
print STDERR @_;
exit $UNKNOWN;
};
# Make sure chroot paths are nice;
my @chroots = ();
for my $root (@{$params->{'chroots'}}) {
if ($root =~ m#^(/[a-zA-Z0-9/.-]*)$#) {
push @chroots, $1;
} else {
die ("Chroot path $root is not nice.\n");
};
};
my @updates_security;
my @updates_other;
for my $root (@chroots) {
my $pre_command = ($root ne '/') ? "chroot $root " : '';
$pre_command = ($USE_SUDO ? 'sudo ' : '').$pre_command;
print STDERR "Running $APT update in $root\n" if $params->{'verbose'};
open (UPDATE, "$pre_command$APT update|") or die ("Cannot run $APT update in $root: $!\n");
my @ignore=<UPDATE>;
close UPDATE;
if ($CHILD_ERROR) { # program failed
die("$APT update returned with non-zero exit code in $root: ".($CHILD_ERROR / 256)."\n");
};
print STDERR "Running $APT --simulate upgrade | sort -u in $root\n" if $params->{'verbose'};
open (TODO, "$pre_command$APT --simulate upgrade | sort -u |") or die ("Cannot run $APT --simulate upgrade | sort -u in $root: $!\n");
my @lines=<TODO>;
close TODO;
if ($CHILD_ERROR) { # program failed
die("$APT --simulate upgrade | sort -u returned with non-zero exit code in $root: ".($CHILD_ERROR / 256)."\n");
};
print STDERR "Processing information for $root\n" if $params->{'verbose'};
for my $line (@lines) {
if ($line =~ m/^Inst\s+(\S+)\s+/) {
my $package = $1;
if ($line =~ m/^Inst\s+\S+\s+.*security/i) {
push @updates_security, $package.($root ne '/' ? "($root)" : '');
} else {
push @updates_other, $package.($root ne '/' ? "($root)" : '');
};
}
}
};
my $exit = $OK;
my $updateinfo;
if (@updates_security) {
$updateinfo .= 'Security updates ('.(scalar @updates_security).'): '.join(', ', @updates_security)."; ";
$exit = $CRITICAL;
};
if (@updates_other) {
$updateinfo .= 'Other Updates ('.(scalar @updates_other).'): '.join(', ', @updates_other)."; ";
$exit = $WARNING if $params->{'warnifupdates'};
};
$updateinfo = 'No updates available' unless defined $updateinfo;
print $updateinfo,"\n";
exit $exit;
|
