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- added test for the WKS RR
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mike.pultz
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Nov 25, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,231 @@ | ||
| <?php | ||
| /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ | ||
|
|
||
| /** | ||
| * DNS Library for handling lookups and updates. | ||
| * | ||
| * PHP Version 5 | ||
| * | ||
| * Copyright (c) 2010, Mike Pultz <mike@mikepultz.com>. | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * | ||
| * * Neither the name of Mike Pultz nor the names of his contributors | ||
| * may be used to endorse or promote products derived from this | ||
| * software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | ||
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | ||
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC | ||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | ||
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGE. | ||
| * | ||
| * @category Networking | ||
| * @package Net_DNS2 | ||
| * @author Mike Pultz <mike@mikepultz.com> | ||
| * @copyright 2010 Mike Pultz <mike@mikepultz.com> | ||
| * @license http://www.opensource.org/licenses/bsd-license.php BSD License | ||
| * @version SVN: $Id$ | ||
| * @link http://pear.php.net/package/Net_DNS2 | ||
| * @since File available since Release 1.0.1 | ||
| * | ||
| */ | ||
|
|
||
| /** | ||
| * WKS Resource Record - RFC1035 section 3.4.2 | ||
| * | ||
| * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | ||
| * | ADDRESS | | ||
| * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | ||
| * | PROTOCOL | | | ||
| * +--+--+--+--+--+--+--+--+ | | ||
| * | | | ||
| * / <BIT MAP> / | ||
| * / / | ||
| * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | ||
| * | ||
| * @category Networking | ||
| * @package Net_DNS2 | ||
| * @author Mike Pultz <mike@mikepultz.com> | ||
| * @license http://www.opensource.org/licenses/bsd-license.php BSD License | ||
| * @link http://pear.php.net/package/Net_DNS2 | ||
| * @see Net_DNS2_RR | ||
| * | ||
| */ | ||
| class Net_DNS2_RR_WKS extends Net_DNS2_RR | ||
| { | ||
| /* | ||
| * The IP address of the service | ||
| */ | ||
| public $address; | ||
|
|
||
| /* | ||
| * The protocol of the service | ||
| */ | ||
| public $protocol; | ||
|
|
||
| /* | ||
| * bitmap | ||
| */ | ||
| public $bitmap = array(); | ||
|
|
||
| /** | ||
| * method to return the rdata portion of the packet as a string | ||
| * | ||
| * @return string | ||
| * @access protected | ||
| * | ||
| */ | ||
| protected function rrToString() | ||
| { | ||
| $data = $this->address . ' ' . $this->protocol; | ||
|
|
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| foreach($this->bitmap as $port) { | ||
| $data .= ' ' . $port; | ||
| } | ||
|
|
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| return $data; | ||
| } | ||
|
|
||
| /** | ||
| * 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) | ||
| { | ||
| $this->address = strtolower(trim(array_shift($rdata), '.')); | ||
| $this->protocol = array_shift($rdata); | ||
| $this->bitmap = $rdata; | ||
|
|
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| return true; | ||
| } | ||
|
|
||
| /** | ||
| * parses the rdata of the Net_DNS2_Packet object | ||
| * | ||
| * @param Net_DNS2_Packet &$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) { | ||
|
|
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| // | ||
| // get the address and protocol value | ||
| // | ||
| $x = unpack('Naddress/Cprotocol', $this->rdata); | ||
|
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| $this->address = long2ip($x['address']); | ||
| $this->protocol = $x['protocol']; | ||
|
|
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| // | ||
| // unpack the port list bitmap | ||
| // | ||
| $port = 0; | ||
| 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++, $port++) { | ||
| if ($s[$i] == '1') { | ||
| $this->bitmap[] = $port; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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| return true; | ||
| } | ||
|
|
||
| /** | ||
| * returns the rdata portion of the DNS packet | ||
| * | ||
| * @param Net_DNS2_Packet &$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->address) > 0) { | ||
|
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| $data = pack('NC', ip2long($this->address), $this->protocol); | ||
|
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| $ports = array(); | ||
|
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| $n = 0; | ||
| foreach ($this->bitmap as $port) { | ||
| $ports[$port] = 1; | ||
|
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| if ($port > $n) { | ||
| $n = $port; | ||
| } | ||
| } | ||
| for ($i=0; $i<ceil($n/8)*8; $i++) { | ||
| if (!isset($ports[$i])) { | ||
| $ports[$i] = 0; | ||
| } | ||
| } | ||
|
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| ksort($ports); | ||
|
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| $string = ""; | ||
| $n = 0; | ||
|
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| foreach($ports as $s) { | ||
|
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| $string .= $s; | ||
| $n++; | ||
|
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| if ($n == 8) { | ||
|
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| $data .= pack('C', bindec($string)); | ||
| $string = ""; | ||
| $n = 0; | ||
| } | ||
| } | ||
|
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| return $data; | ||
| } | ||
|
|
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| return null; | ||
| } | ||
| } | ||
|
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| /* | ||
| * Local variables: | ||
| * tab-width: 4 | ||
| * c-basic-offset: 4 | ||
| * c-hanging-comment-ender-p: nil | ||
| * End: | ||
| */ | ||
| ?> |
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