Net::DRI::Data::Hosts - Handle ordered list of nameservers (name, IPv4 addresses, IPv6 addresses) for Net::DRI


 use Net::DRI::Data::Hosts;

 my $dh=Net::DRI::Data::Hosts->new();
 $dh->add('',['']); ## Third element can be an array ref of IPv6 addresses
 ## ->add() returns the object itself, and thus can be chained

 ## Number of nameservers
 print $dh->count(); ## Gives 2

 ## List of names, either all without arguments, or the amount given by the argument
 my @a=$dh->get_names(2); ## Gives ('','')

 ## Details for the nth nameserver (the list starts at 1 !)
 my @d=$dh->get_details(2); ## Gives ('',[''])

 ## Details by name is possible also
 my @d=$dh->get_details('');


Order of nameservers is preserved. Order of IP addresses is preserved, but no duplicate IP is allowed.

If you try to add a nameserver that is already in the list, the IP addresses provided will be added to the existing IP addresses (without duplicates)

Hostnames are verified before being used with Net::DRI::Util::is_hostname().

IP addresses are verified with Net::DRI::Util::is_ipv4() and Net::DRI::Util::is_ipv6().



creates a new instance ; if parameters are given, add() is called with them all at once


creates a new instance ; if parameters are given, add() is called once for each parameter


clears the current list of nameservers


clears the current list of nameservers, and call add() once for each parameter passed


adds a new nameserver with the given name and lists of IPv4 and IPv6 addresses


name of this object (for example for registries having the notion of host groups) ; this has nothing to do with the name(s) of the nameservers inside this object


local id of this object


returns a list of nameservers' names included in this object ; if limit is provided we return only the number of names asked


returns the number of nameservers currently stored in this object


returns 0 if this object has nameservers, 1 otherwise


given an integer (position in the list, we start to count at 1) or a name, we return all details as a 3 element array in list context or only the first element (the name) in scalar context for the nameserver stored at the given position or with the given name ; returns undef if nothing found at the position/with the name given.


For now, support questions should be sent to:


Please also see the SUPPORT file in the distribution.



Patrick Mevzek, <>


Copyright (c) 2005-2009,2013-2014 Patrick Mevzek <>. All rights reserved.

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.

See the LICENSE file that comes with this distribution for more details.