scripts/rdns-manager

72 lines
1.9 KiB
Perl
Executable File

#!/usr/bin/env perl
# License: 3-Clause BSD. Author: Matthew Connelly.
# This is a (formerly Bash, now Perl) script for managing in-addr.arpa and ip6.arpa zones.
# If you have any questions or issues, open an issue at https://bitbucket.org/MaffC/script-collection/issues
use strict;
use warnings;
use Data::Validate::Domain qw(is_domain); #for validating domains
use Data::Validate::IP qw(is_public_ipv4 is_public_ipv6); #for validating v4/v6 addresses
use Getopt::Long qw(:config posix_default bundling pass_through); #for intelligently handling cli arguments
use Net::IP; #for converting IPs to their reverse zones
use Data::Dumper;
#conf
my $def_rdns = 'hosted-by.mycompany.com';
my $def_dns = '8.8.8.8';
#variables for arguments
our $verify = '';
our $force = '';
our $reset = '';
our $nosync = '';
our $fsync = '';
our $delptr = '';
our $prefixlen = 64;
#functions
#validation, data rejigging and output
sub validate_domain {
my $domain = shift;
return 1 if is_domain $domain;
return 0;
}
sub is_ip {
#returns 0 on invalid IP, 1 on v4, 2 on v6.
my $ip = shift;
return 2 if is_public_ipv6 $ip;
return 1 if is_public_ipv4 $ip;
return 0;
}
sub get_arpa {
my $ip = shift;
if(is_public_ipv4 $ip) {
$ip =~ m/^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$/;
return ($4, "$3.$2.$1.in-addr.arpa");
}
my $len = ($prefixlen/2);
Net::IP->new($ip)->reverse_ip =~ /^(.*)\.(.{$len}ip6\.arpa)\.$/;
return ($1,$2);
}
sub nicedie {
print shift;
exit 1;
}
#main
GetOptions(
'v|verify-rdns' => \$verify,
'dns-server=s' => \$def_dns,
'f|force' => \$force,
'r|reset' => \$reset,
'default=s' => \$def_rdns,
'd|no-sync' => \$nosync,
's|force-sync' => \$fsync,
'R|remove-ptr' => \$delptr
);
my $ip = shift or nicedie "No IP given!";
my $domain = shift or nicedie "No FQDN given!" unless $fsync || $reset || $delptr;
$prefixlen = $1 if $ip =~ s/\/([0-9]+)//;