IP::Authority(3) User Contributed Perl Documentation IP::Authority(3)NAMEIP::Authority - fast lookup of authority by IP address
SYNOPSIS
use IP::Authority;
my $reg = IP::Authority->new();
print $reg->inet_atoauth('212.67.197.128') ."\n";
print $reg->inet_atoauth('www.slashdot.org') ."\n";
DESCRIPTION
Historically, the former InterNIC managed (under the auspices of IANA)
the allocation of IP numbers to ISPs and other organizations. This
changed somewhat when the Regional Internet Registry system was
started, with the creation of three (and later, four) Regional Internet
Registries (RIRs) around the world, each managing the allocation of IP
addresses to organizations within differing physical areas (see also
RFC2050).
This means that there is no central whois database for IP numbers.
This module allows the user to lookup the RIR who has authority for a
particular IP address. After finding out the authority for an IP
address, it is possible to use the authority's whois server to lookup
the netblock owner.
CONSTRUCTOR
The constructor takes no arguments.
use IP::Authority;
my $reg = IP::Authority->new();
OBJECT METHODS
All object methods are designed to be used in an object-oriented
fashion.
$result = $object->foo_method($bar,$baz);
Using the module in a procedural fashion (without the arrow syntax)
won't work.
$auth = $reg->inet_atoauth(HOSTNAME)
Takes a string giving the name of a host, and translates that to an
two-letter string representing the regional Internet registry that
has authority of that IP address:
AR = ARIN (North America)
RI = RIPE (Europe)
LA = LACNIC (Latin America)
AP = APNIC (Asia-Pacific)
AF = AFRINIC (Africa and Indian Ocean)
IA = IANA (see RFC3330)
Takes arguments of both the 'rtfm.mit.edu' type and '18.181.0.24'.
If the host name cannot be resolved, returns undef. If the resolved
IP address is not contained within the database, returns undef. For
multi-homed hosts (hosts with more than one address), the first
address found is returned.
$auth = $reg->inet_ntoauth(IP_ADDRESS)
Takes a string (an opaque string as returned by
Socket::inet_aton()) and translates it into a two-letter string
representing the regional Internet registry that has authority of
that IP address:
AR = ARIN (North America)
RI = RIPE (Europe)
LA = LACNIC (Latin America)
AP = APNIC (Asia-Pacific)
AF = AFRINIC (Africa and Indian Ocean)
IA = IANA (see RFC3330)
If the IP address is not contained within the database, returns
undef.
$t = $reg->db_time()
Returns the creation date of the database, measured as number of
seconds since the Unix epoch (00:00:00 GMT, January 1, 1970).
Suitable for feeding to "gmtime" and "localtime".
BUGS/LIMITATIONS
Only works with IPv4 addresses and ASCII hostnames.
SEE ALSO
IP::Country - fast lookup of country codes from IP address.
<http://www.apnic.net> - Asia-Pacific
<http://www.ripe.net> - Europe
<http://www.arin.net> - North America
<http://www.lacnic.net> - Latin America
<http://www.afrinic.net> - Africa and Indian Ocean
COPYRIGHT
Copyright (C) 2002-2005 Nigel Wetters Gourlay. All Rights Reserved.
NO WARRANTY. This module is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.
Some parts of this software distribution are derived from the APNIC,
LACNIC, ARIN, AFRINIC and RIPE databases (copyright details below). I
am not a lawyer, so please direct questions about the RIR's licenses to
them, not me.
APNIC conditions of use
The files are freely available for download and use on the condition
that APNIC will not be held responsible for any loss or damage arising
from the application of the information contained in these reports.
APNIC endeavours to the best of its ability to ensure the accuracy of
these reports; however, APNIC makes no guarantee in this regard.
In particular, it should be noted that these reports seek to indicate
the country where resources were first allocated or assigned. It is not
intended that these reports be considered as an authoritative statement
of the location in which any specific resource may currently be in use.
ARIN database copyright
Copyright (c) American Registry for Internet Numbers. All rights
reserved.
The ARIN WHOIS data is for Internet operational or technical research
purposes pertaining to Internet operations only. It may not be used
for advertising, direct marketing, marketing research, or similar
purposes. Use of the ARIN WHOIS data for these activities is
explicitly forbidden. ARIN requests to be notified of any such
activities or suspicions thereof.
RIPE database copyright
The information in the RIPE Database is available to the public for
agreed Internet operation purposes, but is under copyright. The
copyright statement is:
"Except for agreed Internet operational purposes, no part of this
publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical,
recording, or otherwise, without prior permission of the RIPE NCC on
behalf of the copyright holders. Any use of this material to target
advertising or similar activities is explicitly forbidden and may be
prosecuted. The RIPE NCC requests to be notified of any such
activities or suspicions thereof."
LACNIC database copyright
Copyright (c) Latin American and Caribbean IP address Regional
Registry. All rights reserved.
AFRINIC copyright
Seems to be the RIPE copyright. I'm sure they'll correct this in due
course.
perl v5.10.1 2006-04-06 IP::Authority(3)
