122 lines
3.0 KiB
PHP
122 lines
3.0 KiB
PHP
<?php
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/**
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* DNS Library for handling lookups and updates.
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*
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* Copyright (c) 2020, Mike Pultz <mike@mikepultz.com>. All rights reserved.
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*
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* @category Networking
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* @package Net_DNS2
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* @author Mike Pultz <mike@mikepultz.com>
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* @copyright 2020 Mike Pultz <mike@mikepultz.com>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @link https://netdns2.com/
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* @since File available since Release 1.2.0
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*
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*/
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/**
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* TALINK Resource Record - DNSSEC Trust Anchor
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*
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* http://tools.ietf.org/id/draft-ietf-dnsop-dnssec-trust-history-00.txt
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*
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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* / PREVIOUS /
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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* / NEXT /
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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*
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*/
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class Net_DNS2_RR_TALINK extends Net_DNS2_RR
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{
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/*
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* the previous domain name
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*/
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public $previous;
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/*
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* the next domain name
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*/
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public $next;
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/**
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* method to return the rdata portion of the packet as a string
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*
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* @return string
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* @access protected
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*
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*/
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protected function rrToString()
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{
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return $this->cleanString($this->previous) . '. ' .
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$this->cleanString($this->next) . '.';
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}
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/**
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* parses the rdata portion from a standard DNS config line
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*
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* @param array $rdata a string split line of values for the rdata
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*
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* @return boolean
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* @access protected
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*
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*/
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protected function rrFromString(array $rdata)
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{
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$this->previous = $this->cleanString($rdata[0]);
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$this->next = $this->cleanString($rdata[1]);
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return true;
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}
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/**
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* parses the rdata of the Net_DNS2_Packet object
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*
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* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
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*
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* @return boolean
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* @access protected
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*
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*/
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protected function rrSet(Net_DNS2_Packet &$packet)
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{
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if ($this->rdlength > 0) {
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$offset = $packet->offset;
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$this->previous = Net_DNS2_Packet::label($packet, $offset);
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$this->next = Net_DNS2_Packet::label($packet, $offset);
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return true;
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}
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return false;
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}
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/**
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* returns the rdata portion of the DNS packet
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*
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* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet use for
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* compressed names
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*
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* @return mixed either returns a binary packed
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* string or null on failure
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* @access protected
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*
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*/
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protected function rrGet(Net_DNS2_Packet &$packet)
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{
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if ( (strlen($this->previous) > 0) || (strlen($this->next) > 0) ) {
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$data = chr(strlen($this->previous)) . $this->previous .
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chr(strlen($this->next)) . $this->next;
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$packet->offset += strlen($data);
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return $data;
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}
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return null;
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}
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}
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