initial commit; version 22.5.12042

libs/pear/Net/DNS2/RR/HINFO.php

@@ -0,0 +1,125 @@
+<?php
+
+/**
+ * DNS Library for handling lookups and updates. 
+ *
+ * Copyright (c) 2020, Mike Pultz <mike@mikepultz.com>. All rights reserved.
+ *
+ * See LICENSE for more details.
+ *
+ * @category  Networking
+ * @package   Net_DNS2
+ * @author    Mike Pultz <mike@mikepultz.com>
+ * @copyright 2020 Mike Pultz <mike@mikepultz.com>
+ * @license   http://www.opensource.org/licenses/bsd-license.php  BSD License
+ * @link      https://netdns2.com/
+ * @since     File available since Release 0.6.0
+ *
+ */
+
+/**
+ * HINFO Resource Record - RFC1035 section 3.3.2
+ *
+ *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ *    /                      CPU                      /
+ *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ *    /                       OS                      /
+ *    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ *
+ */
+class Net_DNS2_RR_HINFO extends Net_DNS2_RR
+{
+    /*
+     * computer informatino
+     */
+    public $cpu;
+
+    /*
+     * operataing system
+     */
+    public $os;
+
+    /**
+     * method to return the rdata portion of the packet as a string
+     *
+     * @return  string
+     * @access  protected
+     *
+     */
+    protected function rrToString()
+    {
+        return $this->formatString($this->cpu) . ' ' . $this->formatString($this->os);
+    }
+
+    /**
+     * 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 = $this->buildString($rdata);
+        if (count($data) == 2) {
+
+            $this->cpu  = trim($data[0], '"');
+            $this->os   = trim($data[1], '"');
+
+            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) {
+
+            $offset = $packet->offset;
+    
+            $this->cpu  = Net_DNS2_Packet::label($packet, $offset);
+            $this->os   = Net_DNS2_Packet::label($packet, $offset);
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * returns the rdata portion of the DNS packet
+     *
+     * @param Net_DNS2_Packet &$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->cpu) > 0) {
+
+            $data = pack('Ca*Ca*', strlen($this->cpu), $this->cpu, strlen($this->os), $this->os);
+
+            $packet->offset += strlen($data);
+
+            return $data;
+        }
+
+        return null;
+    }
+}