62 lines
1.3 KiB
Plaintext
62 lines
1.3 KiB
Plaintext
|
#! /usr/bin/perl
|
||
|
|
|
||
|
|
#
|
||
|
|
# Author: Kevin C. Miller <kevinm@andrew.cmu.edu>
|
||
|
|
# http://www.andrew.cmu.edu/~kevinm/dhcp/failover.html
|
||
|
|
#
|
||
|
|
# The copyright is with the author. We (SuSE) include this script
|
||
|
|
# with his permission.
|
||
|
|
#
|
||
|
|
|
||
|
|
use strict;
|
||
|
|
|
||
|
|
my %LeaseBS;
|
||
|
|
my %LeaseNBS;
|
||
|
|
my %Update;
|
||
|
|
my $level = 1;
|
||
|
|
my $IP = '';
|
||
|
|
my ($ip, $bs, $nbs, $join);
|
||
|
|
open(FILE, "/var/lib/dhcp/dhcpd.leases");
|
||
|
|
while(my $line = <FILE>) {
|
||
|
|
next if ($line =~ /^\#/);
|
||
|
|
if ($level == 1) {
|
||
|
|
if ($line =~ /lease ([\d\.]+) \{/) {
|
||
|
|
$level++;
|
||
|
|
$IP = $1;
|
||
|
|
$LeaseBS{$IP} = '';
|
||
|
|
$LeaseNBS{$IP} = '';
|
||
|
|
$Update{$IP} = 0;
|
||
|
|
}
|
||
|
|
}elsif($level == 2) {
|
||
|
|
if ($line =~ /next binding state ([^\;]+)/) {
|
||
|
|
$LeaseNBS{$IP} = $1;
|
||
|
|
}elsif($line =~ /binding state ([^\;]+)/) {
|
||
|
|
$LeaseBS{$IP} = $1;
|
||
|
|
}elsif($line =~ /f_lupdate/) {
|
||
|
|
$Update{$IP} = 1;
|
||
|
|
}elsif($line =~ /\}/) {
|
||
|
|
$level--;
|
||
|
|
# print "$IP: $Leases{$IP}->[0] $Leases{$IP}->[1]\n";
|
||
|
|
$IP = '';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
close(FILE);
|
||
|
|
|
||
|
|
format IP =
|
||
|
|
@<<<<<<<<<<<<<<<<<< @<<<<<<<<< @ @<<<<<<<<<
|
||
|
|
$ip, $bs, $join, $nbs
|
||
|
|
.
|
||
|
|
|
||
|
|
$~ = "IP";
|
||
|
|
print
|
||
|
|
"IP Address Binding Next Binding\n";
|
||
|
|
foreach $ip (sort keys %LeaseBS) {
|
||
|
|
$bs = $LeaseBS{$ip};
|
||
|
|
$nbs = $LeaseNBS{$ip};
|
||
|
|
$join = '>';
|
||
|
|
$join = '*' if ($Update{$ip});
|
||
|
|
write(STDOUT);
|
||
|
|
}
|
||
|
|
|