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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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* DNS Library for handling lookups and updates.
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* Copyright (c) 2010, Mike Pultz <mike@mikepultz.com>.
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* * Neither the name of Mike Pultz nor the names of his contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* @category Networking
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* @author Mike Pultz <mike@mikepultz.com>
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* @copyright 2010 Mike Pultz <mike@mikepultz.com>
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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* @version SVN: $Id: WKS.php 179 2012-11-23 05:49:01Z mike.pultz $
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* @link http://pear.php.net/package/Net_DNS2
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* @since File available since Release 1.0.1
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* WKS Resource Record - RFC1035 section 3.4.2
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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* +--+--+--+--+--+--+--+--+ |
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* +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
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* @category Networking
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* @author 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 http://pear.php.net/package/Net_DNS2
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class Net_DNS2_RR_WKS extends Net_DNS2_RR
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* The IP address of the service
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* The protocol of the service
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public $bitmap = array();
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* method to return the rdata portion of the packet as a string
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protected function rrToString()
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$data = $this->address . ' ' . $this->protocol;
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foreach ($this->bitmap as $port) {
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$data .= ' ' . $port;
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* parses the rdata portion from a standard DNS config line
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* @param array $rdata a string split line of values for the rdata
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protected function rrFromString(array $rdata)
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$this->address = strtolower(trim(array_shift($rdata), '.'));
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$this->protocol = array_shift($rdata);
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$this->bitmap = $rdata;
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* parses the rdata of the Net_DNS2_Packet object
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* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
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protected function rrSet(Net_DNS2_Packet &$packet)
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if ($this->rdlength > 0) {
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// get the address and protocol value
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$x = unpack('Naddress/Cprotocol', $this->rdata);
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$this->address = long2ip($x['address']);
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$this->protocol = $x['protocol'];
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// unpack the port list bitmap
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foreach (unpack('@5/C*', $this->rdata) as $set) {
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$s = sprintf('%08b', $set);
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for ($i=0; $i<8; $i++, $port++) {
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$this->bitmap[] = $port;
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* returns the rdata portion of the DNS packet
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* @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet use for
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* @return mixed either returns a binary packed
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* string or null on failure
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protected function rrGet(Net_DNS2_Packet &$packet)
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if (strlen($this->address) > 0) {
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$data = pack('NC', ip2long($this->address), $this->protocol);
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foreach ($this->bitmap as $port) {
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for ($i=0; $i<ceil($n/8)*8; $i++) {
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if (!isset($ports[$i])) {
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foreach ($ports as $s) {
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$data .= chr(bindec($string));
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$packet->offset += strlen($data);
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* c-hanging-comment-ender-p: nil