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package Net::DNS::RR::NAPTR; use strict; use warnings; our $VERSION = (qw$Id: NAPTR.pm 1857 2021-12-07 13:38:02Z willem $)[2]; use base qw(Net::DNS::RR); =head1 NAME Net::DNS::RR::NAPTR - DNS NAPTR resource record =cut use integer; use Net::DNS::DomainName; use Net::DNS::Text; sub _decode_rdata { ## decode rdata from wire-format octet string my $self = shift; my ( $data, $offset, @opaque ) = @_; @{$self}{qw(order preference)} = unpack "\@$offset n2", $$data; ( $self->{flags}, $offset ) = Net::DNS::Text->decode( $data, $offset + 4 ); ( $self->{service}, $offset ) = Net::DNS::Text->decode( $data, $offset ); ( $self->{regexp}, $offset ) = Net::DNS::Text->decode( $data, $offset ); $self->{replacement} = Net::DNS::DomainName2535->decode( $data, $offset, @opaque ); return; } sub _encode_rdata { ## encode rdata as wire-format octet string my $self = shift; my ( $offset, @opaque ) = @_; my $rdata = pack 'n2', @{$self}{qw(order preference)}; $rdata .= $self->{flags}->encode; $rdata .= $self->{service}->encode; $rdata .= $self->{regexp}->encode; $rdata .= $self->{replacement}->encode( $offset + length($rdata), @opaque ); return $rdata; } sub _format_rdata { ## format rdata portion of RR string. my $self = shift; my @order = @{$self}{qw(order preference)}; my @rdata = ( @order, map { $_->string } @{$self}{qw(flags service regexp replacement)} ); return @rdata; } sub _parse_rdata { ## populate RR from rdata in argument list my $self = shift; foreach (qw(order preference flags service regexp replacement)) { $self->$_(shift) } return; } sub order { my $self = shift; $self->{order} = 0 + shift if scalar @_; return $self->{order} || 0; } sub preference { my $self = shift; $self->{preference} = 0 + shift if scalar @_; return $self->{preference} || 0; } sub flags { my $self = shift; $self->{flags} = Net::DNS::Text->new(shift) if scalar @_; return $self->{flags} ? $self->{flags}->value : undef; } sub service { my $self = shift; $self->{service} = Net::DNS::Text->new(shift) if scalar @_; return $self->{service} ? $self->{service}->value : undef; } sub regexp { my $self = shift; $self->{regexp} = Net::DNS::Text->new(shift) if scalar @_; return $self->{regexp} ? $self->{regexp}->value : undef; } sub replacement { my $self = shift; $self->{replacement} = Net::DNS::DomainName2535->new(shift) if scalar @_; return $self->{replacement} ? $self->{replacement}->name : undef; } my $function = sub { my ( $a, $b ) = ( $Net::DNS::a, $Net::DNS::b ); return $a->{order} <=> $b->{order} || $a->{preference} <=> $b->{preference}; }; __PACKAGE__->set_rrsort_func( 'order', $function ); __PACKAGE__->set_rrsort_func( 'default_sort', $function ); 1; __END__ =head1 SYNOPSIS use Net::DNS; $rr = Net::DNS::RR->new('name NAPTR order preference flags service regexp replacement'); =head1 DESCRIPTION DNS Naming Authority Pointer (NAPTR) resource records. =head1 METHODS The available methods are those inherited from the base class augmented by the type-specific methods defined in this package. Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or other unpredictable behaviour. =head2 order $order = $rr->order; $rr->order( $order ); A 16-bit unsigned integer specifying the order in which the NAPTR records must be processed to ensure the correct ordering of rules. Low numbers are processed before high numbers. =head2 preference $preference = $rr->preference; $rr->preference( $preference ); A 16-bit unsigned integer that specifies the order in which NAPTR records with equal "order" values should be processed, low numbers being processed before high numbers. =head2 flags $flags = $rr->flags; $rr->flags( $flags ); A string containing flags to control aspects of the rewriting and interpretation of the fields in the record. Flags are single characters from the set [A-Z0-9]. =head2 service $service = $rr->service; $rr->service( $service ); Specifies the service(s) available down this rewrite path. It may also specify the protocol used to communicate with the service. =head2 regexp $regexp = $rr->regexp; $rr->regexp; A string containing a substitution expression that is applied to the original string held by the client in order to construct the next domain name to lookup. =head2 replacement $replacement = $rr->replacement; $rr->replacement( $replacement ); The next NAME to query for NAPTR, SRV, or address records depending on the value of the flags field. =head1 COPYRIGHT Copyright (c)1997 Michael Fuhr. Portions Copyright (c)2005 Olaf Kolkman, NLnet Labs. Based on code contributed by Ryan Moats. All rights reserved. Package template (c)2009,2012 O.M.Kolkman and R.W.Franks. =head1 LICENSE Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the original copyright notices appear in all copies and that both copyright notice and this permission notice appear in supporting documentation, and that the name of the author not be used in advertising or publicity pertaining to distribution of the software without specific prior written permission. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. =head1 SEE ALSO L<perl>, L<Net::DNS>, L<Net::DNS::RR>, RFC2915, RFC2168, RFC3403 =cut