. All rights reserved. * * See LICENSE for more details. * * @category Networking * @package Net_DNS2 * @author Mike Pultz * @copyright 2020 Mike Pultz * @license http://www.opensource.org/licenses/bsd-license.php BSD License * @link https://netdns2.com/ * @since File available since Release 0.6.0 * */ /** * DHCID Resource Record - RFC4701 section 3.1 * * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * | ID Type Code | * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * | Digest Type | / * +--+--+--+--+--+--+--+--+ / * / / * / Digest / * / / * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ * */ class Net_DNS2_RR_DHCID extends Net_DNS2_RR { /* * Identifier type */ public $id_type; /* * Digest Type */ public $digest_type; /* * The digest */ public $digest; /** * method to return the rdata portion of the packet as a string * * @return string * @access protected * */ protected function rrToString() { $out = pack('nC', $this->id_type, $this->digest_type); $out .= base64_decode($this->digest); return base64_encode($out); } /** * parses the rdata portion from a standard DNS config line * * @param array $rdata a string split line of values for the rdata * * @return boolean * @access protected * */ protected function rrFromString(array $rdata) { $data = base64_decode(array_shift($rdata)); if (strlen($data) > 0) { // // unpack the id type and digest type // $x = unpack('nid_type/Cdigest_type', $data); $this->id_type = $x['id_type']; $this->digest_type = $x['digest_type']; // // copy out the digest // $this->digest = base64_encode(substr($data, 3, strlen($data) - 3)); return true; } return false; } /** * parses the rdata of the Net_DNS2_Packet object * * @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from * * @return boolean * @access protected * */ protected function rrSet(Net_DNS2_Packet &$packet) { if ($this->rdlength > 0) { // // unpack the id type and digest type // $x = unpack('nid_type/Cdigest_type', $this->rdata); $this->id_type = $x['id_type']; $this->digest_type = $x['digest_type']; // // copy out the digest // $this->digest = base64_encode( substr($this->rdata, 3, $this->rdlength - 3) ); return true; } return false; } /** * returns the rdata portion of the DNS packet * * @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet use for * compressed names * * @return mixed either returns a binary packed * string or null on failure * @access protected * */ protected function rrGet(Net_DNS2_Packet &$packet) { if (strlen($this->digest) > 0) { $data = pack('nC', $this->id_type, $this->digest_type) . base64_decode($this->digest); $packet->offset += strlen($data); return $data; } return null; } }