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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Badcow DNS Library. |
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* |
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* (c) Samuel Williams <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Badcow\DNS\Rdata; |
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use Badcow\DNS\Message; |
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/** |
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* {@link https://tools.ietf.org/html/rfc2230}. |
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*/ |
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class KX implements RdataInterface |
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{ |
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use RdataTrait; |
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const TYPE = 'KX'; |
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const TYPE_CODE = 36; |
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/** |
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* @var int |
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*/ |
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private $preference; |
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/** |
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* @var string |
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*/ |
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private $exchanger; |
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public function setExchanger(string $exchanger): void |
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{ |
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$this->exchanger = $exchanger; |
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} |
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public function getExchanger(): string |
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{ |
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return $this->exchanger; |
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} |
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public function setPreference(int $preference): void |
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{ |
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$this->preference = $preference; |
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} |
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public function getPreference(): int |
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{ |
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return $this->preference; |
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} |
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/** |
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* @throws \InvalidArgumentException throws exception if preference or exchanger have not been set |
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*/ |
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public function toText(): string |
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{ |
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if (null === $this->preference) { |
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throw new \InvalidArgumentException('No preference has been set on KX object.'); |
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} |
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if (null === $this->exchanger) { |
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throw new \InvalidArgumentException('No exchanger has been set on KX object.'); |
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} |
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return $this->preference.' '.$this->exchanger; |
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} |
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public function toWire(): string |
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{ |
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if (null === $this->preference) { |
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throw new \InvalidArgumentException('No preference has been set on KX object.'); |
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} |
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if (null === $this->exchanger) { |
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throw new \InvalidArgumentException('No exchanger has been set on KX object.'); |
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} |
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return pack('n', $this->preference).Message::encodeName($this->exchanger); |
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} |
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public function fromText(string $text): void |
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{ |
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$rdata = explode(' ', $text); |
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$this->setPreference((int) $rdata[0]); |
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$this->setExchanger($rdata[1]); |
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} |
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public function fromWire(string $rdata, int &$offset = 0, ?int $rdLength = null): void |
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{ |
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if (false === $preference = unpack('n', $rdata, $offset)) { |
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throw new DecodeException(static::TYPE, $rdata); |
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} |
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$this->setPreference($preference[1]); |
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$offset += 2; |
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$this->setExchanger(Message::decodeName($rdata, $offset)); |
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} |
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} |
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Badcow /
DNS
