141 lines
3.4 KiB
PHP
141 lines
3.4 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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* See LICENSE for more details.
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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 1.3.2
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*
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*/
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/**
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* EUI64 Resource Record - RFC7043 section 4.1
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*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | EUI-64 Address |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*
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*/
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class Net_DNS2_RR_EUI64 extends Net_DNS2_RR
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{
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/*
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* The EUI64 address, in hex format
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*/
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public $address;
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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->address;
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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 $rdata)
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{
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$value = array_shift($rdata);
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//
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// re: RFC 7043, the field must be represented as 8 two-digit hex numbers
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// separated by hyphens.
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//
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$a = explode('-', $value);
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if (count($a) != 8) {
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return false;
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}
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//
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// make sure they're all hex values
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//
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foreach ($a as $i) {
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if (ctype_xdigit($i) == false) {
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return false;
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}
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}
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//
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// store it
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//
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$this->address = strtolower($value);
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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 ($this->rdlength > 0) {
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$x = unpack('C8', $this->rdata);
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if (count($x) == 8) {
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$this->address = vsprintf(
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'%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x', $x
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);
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return true;
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}
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}
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return false;
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}
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/**
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* returns the rdata portion of the DNS packet
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*
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* @param Net_DNS2_Packet &$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 &$packet)
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{
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$data = '';
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$a = explode('-', $this->address);
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foreach ($a as $b) {
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$data .= chr(hexdec($b));
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}
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$packet->offset += 8;
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return $data;
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}
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}
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