1<?php
2/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
3
4/**
5 * DNS Library for handling lookups and updates.
6 *
7 * PHP Version 5
8 *
9 * Copyright (c) 2010, Mike Pultz <mike@mikepultz.com>.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 *   * Redistributions of source code must retain the above copyright
17 *     notice, this list of conditions and the following disclaimer.
18 *
19 *   * Redistributions in binary form must reproduce the above copyright
20 *     notice, this list of conditions and the following disclaimer in
21 *     the documentation and/or other materials provided with the
22 *     distribution.
23 *
24 *   * Neither the name of Mike Pultz nor the names of his contributors
25 *     may be used to endorse or promote products derived from this
26 *     software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
31 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
32 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
33 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
34 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
35 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
36 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
38 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 *
41 * @category  Networking
42 * @package   Net_DNS2
43 * @author    Mike Pultz <mike@mikepultz.com>
44 * @copyright 2010 Mike Pultz <mike@mikepultz.com>
45 * @license   http://www.opensource.org/licenses/bsd-license.php  BSD License
46 * @version   SVN: $Id: AFSDB.php 127 2011-12-03 03:29:39Z mike.pultz $
47 * @link      http://pear.php.net/package/Net_DNS2
48 * @since     File available since Release 0.6.0
49 *
50 */
51
52/**
53 * AFSDB Resource Record - RFC1183 section 1
54 *
55 *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
56 *    |                    SUBTYPE                    |
57 *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
58 *    /                    HOSTNAME                   /
59 *    /                                               /
60 *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
61 *
62 * @category Networking
63 * @package  Net_DNS2
64 * @author   Mike Pultz <mike@mikepultz.com>
65 * @license  http://www.opensource.org/licenses/bsd-license.php  BSD License
66 * @link     http://pear.php.net/package/Net_DNS2
67 * @see      Net_DNS2_RR
68 *
69 */
70class Net_DNS2_RR_AFSDB extends Net_DNS2_RR
71{
72    /*
73     * The AFSDB sub type
74     */
75    public $subtype;
76
77    /*
78     * The AFSDB hostname
79     */
80    public $hostname;
81
82    /**
83     * method to return the rdata portion of the packet as a string
84     *
85     * @return  string
86     * @access  protected
87     *
88     */
89    protected function rrToString()
90    {
91        return $this->subtype . ' ' . $this->cleanString($this->hostname) . '.';
92    }
93
94    /**
95     * parses the rdata portion from a standard DNS config line
96     *
97     * @param array $rdata a string split line of values for the rdata
98     *
99     * @return boolean
100     * @access protected
101     *
102     */
103    protected function rrFromString(array $rdata)
104    {
105        $this->subtype  = array_shift($rdata);
106        $this->hostname = $this->cleanString(array_shift($rdata));
107
108        return true;
109    }
110
111    /**
112     * parses the rdata of the Net_DNS2_Packet object
113     *
114     * @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet to parse the RR from
115     *
116     * @return boolean
117     * @access protected
118     *
119     */
120    protected function rrSet(Net_DNS2_Packet &$packet)
121    {
122        if ($this->rdlength > 0) {
123
124            //
125            // unpack the subtype
126            //
127            $x = unpack('nsubtype', $this->rdata);
128
129            $this->subtype  = $x['subtype'];
130            $offset         = $packet->offset + 2;
131
132            $this->hostname = Net_DNS2_Packet::expand($packet, $offset);
133
134            return true;
135        }
136
137        return false;
138    }
139
140    /**
141     * returns the rdata portion of the DNS packet
142     *
143     * @param Net_DNS2_Packet &$packet a Net_DNS2_Packet packet use for
144     *                                 compressed names
145     *
146     * @return mixed                   either returns a binary packed
147     *                                 string or null on failure
148     * @access protected
149     *
150     */
151    protected function rrGet(Net_DNS2_Packet &$packet)
152    {
153        if (strlen($this->hostname) > 0) {
154
155            $data = pack('n', $this->subtype);
156            $packet->offset += 2;
157
158            $data .= $packet->compress($this->hostname, $packet->offset);
159
160            return $data;
161        }
162
163        return null;
164    }
165}
166
167/*
168 * Local variables:
169 * tab-width: 4
170 * c-basic-offset: 4
171 * c-hanging-comment-ender-p: nil
172 * End:
173 */
174?>
175