Data::Validate::IP(category8-imap.html) - phpMan

Data::Validate::IP(3) User Contributed Perl DocumentationData::Validate::IP(3)

NAME
       Data::Validate::IP - IPv4 and IPv6 validation methods
VERSION
       version 0.27
SYNOPSIS
         use Data::Validate::IP qw(is_ipv4 is_ipv6);
         my $suspect = '1.2.3.4';
         if (is_ipv4($suspect)) {
             print "Looks like an IPv4 address";
         }
         else {
             print "Not an IPv4 address\n";
         }
         $suspect = '::1234';
         if (is_ipv6($suspect)) {
             print "Looks like an IPv6 address";
         }
         else {
             print "Not an IPv6 address\n";
         }
DESCRIPTION
       This module provides a number IP address validation subs that both
       validate and untaint their input. This includes both basic validation
       ("is_ipv4()" and "is_ipv6()") and special cases like checking whether
       an address belongs to a specific network or whether an address is
       public or private (reserved).
FUNCTIONS
       All of the functions below are exported by default.
       All functions return an untainted value if the test passes and undef if
       it fails. In theory, this means that you should always check for a
       defined status explicitly but in practice there are no valid IP
       addresses where the string form evaluates to false in Perl.
       Note that none of these functions actually attempt to test whether the
       given IP address is routable from your device; they are purely semantic
       checks.
   is_ipv4($ip), is_ipv6($ip), is_ip($ip)
       These functions simply check whether the address is a valid IPv4 or
       IPv6 address.
   is_innet_ipv4($ip, $network)
       This subroutine checks whether the address belongs to the given IPv4
       network. The $network argument can either be a string in CIDR notation
       like "15.0.15.0/24" or a NetAddr::IP object.
       This subroutine used to accept many more forms of network
       specifications (anything Net::Netmask accepts) but this has been
       deprecated.
   is_unroutable_ipv4($ip)
       This subroutine checks whether the address belongs to any of several
       special use IPv4 networks - "0.0.0.0/8", "100.64.0.0/10",
       "192.0.0.0/29", "198.18.0.0/15", "240.0.0.0/4" - as defined by RFC 5735
       <http://tools.ietf.org/html/rfc5735>;, RFC 6333
       <http://tools.ietf.org/html/rfc6333>;, and RFC 6958
       <http://tools.ietf.org/html/rfc6598>;.
       Arguably, these should be broken down further but this subroutine will
       always exist for backwards compatibility.
   is_private_ipv4($ip)
       This subroutine checks whether the address belongs to any of the
       private IPv4 networks - "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"
       - as defined by RFC 5735 <http://tools.ietf.org/html/rfc5735>;.
   is_loopback_ipv4($ip)
       This subroutine checks whether the address belongs to the IPv4 loopback
       network - "127.0.0.0/8" - as defined by RFC 5735
       <http://tools.ietf.org/html/rfc5735>;.
   is_linklocal_ipv4($ip)
       This subroutine checks whether the address belongs to the IPv4 link
       local network - "169.254.0.0/16" - as defined by RFC 5735
       <http://tools.ietf.org/html/rfc5735>;.
   is_testnet_ipv4($ip)
       This subroutine checks whether the address belongs to any of the IPv4
       TEST-NET networks for use in documentation and example code -
       "192.0.2.0/24", "198.51.100.0/24", and "203.0.113.0/24" - as defined by
       RFC 5735 <http://tools.ietf.org/html/rfc5735>;.
   is_anycast_ipv4($ip)
       This subroutine checks whether the address belongs to the 6to4 relay
       anycast network - "192.88.99.0/24" - as defined by RFC 5735
       <http://tools.ietf.org/html/rfc5735>;.
   is_multicast_ipv4($ip)
       This subroutine checks whether the address belongs to the IPv4
       multicast network - "224.0.0.0/4" - as defined by RFC 5735
       <http://tools.ietf.org/html/rfc5735>;.
   is_loopback_ipv6($ip)
       This subroutine checks whether the address is the IPv6 loopback address
       - "::1/128" - as defined by RFC 4291
       <http://tools.ietf.org/html/rfc4291>;.
   is_ipv4_mapped_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6
       IPv4-mapped address network - "::ffff:0:0/96" - as defined by RFC 4291
       <http://tools.ietf.org/html/rfc4291>;.
   is_discard_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 discard
       prefix network - "100::/64" - as defined by RFC 6666
       <http://tools.ietf.org/html/rfc6666>;.
   is_special_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 special
       network - "2001::/23" - as defined by RFC 2928
       <http://tools.ietf.org/html/rfc2928>;.
   is_teredo_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 TEREDO
       network - "2001::/32" - as defined by RFC 4380
       <http://tools.ietf.org/html/rfc4380>;.
       Note that this network is a subnet of the larger special network at
       "2001::/23".
   is_orchid_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 ORCHID
       network - "2001::/32" - as defined by RFC 4380
       <http://tools.ietf.org/html/rfc4380>;.
       Note that this network is a subnet of the larger special network at
       "2001::/23".
       This network is currently scheduled to be returned to the special pool
       in March of 2014 unless the IETF extends its use. If that happens this
       subroutine will continue to exist but will always return false.
   is_documentation_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6
       documentation network - "2001:DB8::/32" - as defined by RFC 3849
       <http://tools.ietf.org/html/rfc3849>;.
   is_private_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 private
       network - "FC00::/7" - as defined by RFC 4193
       <http://tools.ietf.org/html/rfc4193>;.
   is_linklocal_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6 link-
       local unicast network - "FE80::/10" - as defined by RFC 4291
       <http://tools.ietf.org/html/rfc4291>;.
   is_multicast_ipv6($ip)
       This subroutine checks whether the address belongs to the IPv6
       multicast network - "FF00::/8" - as defined by RFC 4291
       <http://tools.ietf.org/html/rfc4291>;.
   is_public_ipv4($ip), is_public_ipv6($ip), is_public_ip($ip)
       These subroutines check whether the given IP address belongs to any of
       the special case networks defined previously. Note that this is not
       simply the opposite of checking "is_private_ipv4()" or
       "is_private_ipv6()". The private networks are a subset of all the
       special case networks.
   is_linklocal_ip($ip)
       This subroutine checks whether the address belongs to the IPv4 or IPv6
       link-local unicast network.
   is_loopback_ip($ip)
       This subroutine checks whether the address is the IPv4 or IPv6 loopback
       address.
   is_multicast_ip($ip)
       This subroutine checks whether the address belongs to the IPv4 or IPv6
       multicast network.
   is_private_ip($ip)
       This subroutine checks whether the address belongs to the IPv4 or IPv6
       private network.
OBJECT-ORIENTED INTERFACE
       This module can also be used as a class. You can call
       "Data::Validate::IP->new()" to get an object and then call any of the
       validation subroutines as methods on that object. This is somewhat
       pointless since the object will never contain any state but this
       interface is kept for backwards compatibility.
SEE ALSO
       IPv4
       [RFC 5735] [RFC 1918]
       IPv6
       [RFC 2460] [RFC 4193] [RFC 4291] [RFC 6434]
ACKNOWLEDGEMENTS
       Thanks to Richard Sonnen <sonnen AT richardsonnen.com> for writing the
       Data::Validate module.
       Thanks to Matt Dainty <matt AT bodgit-n-scarper.com> for adding the
       "is_multicast_ipv4()" and "is_linklocal_ipv4()" code.
BUGS
       Please report any bugs or feature requests to
       "bug-data-validate-ip AT rt.org", or through the web interface at
       <http://rt.cpan.org>;. I will be notified, and then you'll automatically
       be notified of progress on your bug as I make changes.
       Bugs may be submitted through
       <https://github.com/houseabsolute/Data-Validate-IP/issues>;.
AUTHORS
       o   Neil Neely <neil AT neely.cx>
       o   Dave Rolsky <autarch AT urth.org>
CONTRIBUTOR
       Gregory Oschwald <goschwald AT maxmind.com>
COPYRIGHT AND LICENSE
       This software is copyright (c) 2016 by Neil Neely.
       This is free software; you can redistribute it and/or modify it under
       the same terms as the Perl 5 programming language system itself.

perl v5.16.3                      2016-11-17             Data::Validate::IP(3)