Subversion Repositories sysadmin_scripts

#! /usr/bin/env perl

# take persistent storage created by mapSwitches.pl and dump entries

# to a tab delimited text file on STDOUT.

use strict;

use warnings;

use YAML::Tiny; # apt-get libyaml-tiny-perl under debian

use POSIX qw( strftime ); # to convert timestamp to something readable

my $STATEFILE = 'mapSwitches.yaml';

my %switchports;

# pretty up the MAC addresses by inserting colons between

# every pair of numbers

sub prettyMAC {

   my $mac = shift;

   my @mac = ( $mac =~ m/../g );

   return join( ':', @mac );

}

# change the Unix timestamp into yyyy-mm-dd hh:mm:ss

sub prettyTime {

   my $time = shift;

   return '' unless $time;

   return strftime '%Y-%m-%d %H:%M:%S', localtime( $time );

}

# read the saved state into memory if it exists

die "no state file found, looking at $STATEFILE\n" unless -e $STATEFILE;

my $yaml = YAML::Tiny->read( $STATEFILE );

%switchports = %{ $yaml->[0] };

foreach my $switch ( sort keys %switchports ) {

   print "$switchports{$switch}{'name'} Located at $switchports{$switch}{'location'}\n";

   print "Switch\tPort\tMAC\tIP\tHost Name\tLast Seen\n";

   foreach my $port ( sort {$a<=>$b} keys %{$switchports{$switch}{'ports'}} ) {

      foreach my $connection ( keys %{$switchports{$switch}{'ports'}{$port} } ) {

         print "$switch\t" .

               "$port\t" .

               &prettyMAC( $switchports{$switch}{ports}{$port}{$connection}{'mac'}) . "\t" .

               "$switchports{$switch}{ports}{$port}{$connection}{'ip'}\t" .

               "$switchports{$switch}{ports}{$port}{$connection}{'hostname'}\t" .

               &prettyTime( $switchports{$switch}{ports}{$port}{$connection}{'lastseen'} ) . "\n";

      }

   }

}

1;