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#!/usr/bin/perl -w
#
# Module: show_version
#
# **** License ****
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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.
#
# This code was originally developed by Vyatta, Inc.
# Portions created by Vyatta are Copyright (C) 2005, 2006, 2007 Vyatta, Inc.
# All Rights Reserved.
#
# Author: Rick Balocca
# Date: 2007
# Description:
#
# **** End License ****
#
use strict;
use warnings;
#
# Global hash of debians in the base install and now.
#
my $rHoH_base_debs;
my $rHoH_now_debs;
my $base = '/opt/vyatta/etc';
my $versionfile = "$base/version";
my $buildfile = "$base/build.txt";
my $debsfile = "$base/deb-versions.txt";
sub echo_file {
my ($file) = @_;
my @lines = ();
if (!(-e $file)) {
return @lines;
}
open(my $FH, '<', $file) or die "Unable to open [$file]\n";
@lines=<$FH>;
close($FH);
return @lines;
}
# This follows the chain from /boot/grub/menu.cfg which
# boots /boot/vmlinuz to find the version of kernel running
sub get_image_type {
my $kernel = readlink('/boot/vmlinuz');
my $version;
unless (defined($kernel)) {
warn "Can not read link /boot/vmlinuz: $!\n";
return;
}
unless ($kernel =~ /^vmlinuz-.*-([^-]*)-vyatta(.*)$/) {
warn "Unknown kernel version: $kernel\n";
return;
}
if ($1 eq '586') {
$version = "Intel 32bit";
} elsif ($1 eq "amd64") {
$version = "Intel 64bit";
} else {
$version = $1;
}
if ($2 eq '-virt') {
$version .= " Virtual"
}
return $version;
}
#
# convert the "dpkg -l" output have same format as deb-versions.txt
#
sub get_pkg_version {
my @lines = @_;
my @new_lines = ();
foreach my $line (@lines) {
if ($line =~ /^[D\|\+]/) {
next; # skip header
}
my ($status, $pkg, $version) = split(/[ \t\n]+/, $line, 4);
if ($status =~ /^i/) {
push(@new_lines, "$pkg $version");
}
}
return @new_lines;
}
sub read_pkg_file {
my @pkgs_list = @_;
my %HoH = ();
my ($name, $version);
foreach my $line (@pkgs_list) {
($name, $version) = split(/[ \t\n]+/, $line, 3);
$HoH{$name}{'version'} = $version;
}
return \%HoH;
}
sub show_added {
for my $name (sort keys %$rHoH_now_debs) {
if (!$rHoH_base_debs->{$name}) {
printf("Aii %-25s %-25s\n",
$name, $rHoH_now_debs->{$name}->{'version'});
}
}
}
sub show_deleted {
for my $name (sort keys %$rHoH_base_debs) {
if (!$rHoH_now_debs->{$name}) {
printf("X %-25s %-25s\n",
$name, $rHoH_base_debs->{$name}->{'version'});
}
}
}
sub show_upgraded_downgraded {
my ($up_down) = @_;
my ($symbol, $op, $ver_base, $ver_now, $cmd);
if ($up_down eq "upgraded") {
$symbol = "U";
$op = "lt";
} else {
$symbol = "D";
$op = "gt";
}
for my $name (sort keys %$rHoH_base_debs) {
if ($rHoH_now_debs->{$name}) {
$ver_base = $rHoH_base_debs->{$name}{'version'};
$ver_now = $rHoH_now_debs->{$name}{'version'};
if ($ver_base ne $ver_now) {
$cmd = "dpkg --compare-versions \"$ver_base\" $op \"$ver_now\"";
if (!system($cmd)) {
printf("%sii %-25s %-20s (baseline: %s)\n",
$symbol, $name, $ver_now, $ver_base);
}
}
}
}
}
sub show_upgraded {
show_upgraded_downgraded("upgraded");
}
sub show_downgraded {
show_upgraded_downgraded("downgraded");
}
sub show_all {
show_added();
show_deleted();
show_upgraded();
show_downgraded();
}
my %options = (
"added" => \&show_added,
"deleted", => \&show_deleted,
"upgraded" => \&show_upgraded,
"downgraded" => \&show_downgraded,
"all" => \&show_all,
);
#
# main
#
print(&echo_file($versionfile));
print(&echo_file($buildfile));
my $type = get_image_type();
if ($type) {
print "System type: $type\n";
}
my $booted = `grep -e '^unionfs.*/filesystem.squashfs' -e '^aufs.*/filesystem.squashfs' /proc/mounts`;
if (defined($booted) && $booted ne "") {
$booted="livecd";
} else {
my $image_boot = `grep -e '^unionfs / unionfs.*squashfs=ro' /proc/mounts`;
if ($image_boot ne "") {
$booted="image";
} else {
$booted="disk";
}
}
print "Boot via: $booted\n";
my $hv = `/opt/vyatta/sbin/hypervisor_vendor`;
if (defined($hv) && $hv ne "") {
chomp $hv;
print "Hypervisor: $hv\n";
}
my $uptime = `uptime`;
if (defined $uptime && $uptime ne "") {
print "Uptime: $uptime\n";
}
if (!(-e $debsfile)) {
exit 0;
}
print "\n";
$rHoH_base_debs = read_pkg_file(&echo_file($debsfile));
$rHoH_now_debs = read_pkg_file(get_pkg_version(`dpkg -l 2> /dev/null`));
if ($#ARGV == 0) {
if ($options{$ARGV[0]}) {
$options{$ARGV[0]}->();
} else {
print "Usage: showversion [added|deleted|upgraded|downgraded|all]\n";
exit 1;
}
}
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