soa.php

来自「视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.」· PHP 代码 · 共 138 行

<?php
/*
 *  License Information:
 *
 *    Net_DNS:  A resolver library for PHP
 *    Copyright (c) 2002-2003 Eric Kilfoil [e-mail]
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation; either
 *    version 2.1 of the License, or (at your option) any later version.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* Net_DNS_RR_SOA definition {{{ */
/**
 * A representation of a resource record of type <b>SOA</b>
 *
 * @package Net_DNS
 */
class Net_DNS_RR_SOA extends Net_DNS_RR
{
    /* class variable definitions {{{ */
    var $name;
    var $type;
    var $class;
    var $ttl;
    var $rdlength;
    var $rdata;
    var $mname;
    var $rname;
    var $serial;
    var $refresh;
    var $retry;
    var $expire;
    var $minimum;

    /* }}} */
    /* class constructor - RR(&$rro, $data, $offset = '') {{{ */
    function Net_DNS_RR_SOA(&$rro, $data, $offset = '')
    {
        $this->name = $rro->name;
        $this->type = $rro->type;
        $this->class = $rro->class;
        $this->ttl = $rro->ttl;
        $this->rdlength = $rro->rdlength;
        $this->rdata = $rro->rdata;

        if ($offset) {
            if ($this->rdlength > 0) {
                list($mname, $offset) = Net_DNS_Packet::dn_expand($data, $offset);
                list($rname, $offset) = Net_DNS_Packet::dn_expand($data, $offset);

                $a = unpack("@$offset/N5soavals", $data);
                $this->mname = $mname;
                $this->rname = $rname;
                $this->serial = $a['soavals1'];
                $this->refresh = $a['soavals2'];
                $this->retry = $a['soavals3'];
                $this->expire = $a['soavals4'];
                $this->minimum = $a['soavals5'];
            }
        } else {
            if (ereg("([^ \t]+)[ \t]+([^ \t]+)[ \t]+([0-9]+)[^ \t]+([0-9]+)[^ \t]+([0-9]+)[^ \t]+([0-9]+)[^ \t]*$", $string, $regs))
            {
                $this->mname = ereg_replace('(.*)\.$', '\\1', $regs[1]);
                $this->rname = ereg_replace('(.*)\.$', '\\1', $regs[2]);
                $this->serial = $regs[3];
                $this->refresh = $regs[4];
                $this->retry = $regs[5];
                $this->expire = $regs[6];
                $this->minimum = $regs[7];
            }
        }
    }

    /* }}} */
    /* Net_DNS_RR_SOA::rdatastr($pretty = 0) {{{ */
    function rdatastr($pretty = 0)
    {
        if (strlen($this->mname)) {
            if ($pretty) {
                $rdatastr  = $this->mname . '. ' . $this->rname . ". (\n";
                $rdatastr .= "\t\t\t\t\t" . $this->serial . "\t; Serial\n";
                $rdatastr .= "\t\t\t\t\t" . $this->refresh . "\t; Refresh\n";
                $rdatastr .= "\t\t\t\t\t" . $this->retry . "\t; Retry\n";
                $rdatastr .= "\t\t\t\t\t" . $this->expire . "\t; Expire\n";
                $rdatastr .= "\t\t\t\t\t" . $this->minimum . " )\t; Minimum TTL";
            } else {
                $rdatastr  = $this->mname . '. ' . $this->rname . '. ' .
                    $this->serial . ' ' .  $this->refresh . ' ' .  $this->retry . ' ' .
                    $this->expire . ' ' .  $this->minimum;
            }
            return($rdatastr);
        }
        return('; no data');
    }

    /* }}} */
    /* Net_DNS_RR_SOA::rr_rdata($packet, $offset) {{{ */
    function rr_rdata($packet, $offset)
    {
        if (strlen($this->mname)) {
            $rdata = $packet->dn_comp($this->mname, $offset);
            $rdata .= $packet->dn_comp($this->rname, $offset + strlen($rdata));
            $rdata .= pack('N5', $this->serial,
                    $this->refresh,
                    $this->retry,
                    $this->expire,
                    $this->minimum);
            return($rdata);
        }
        return(NULL);
    }

    /* }}} */
}
/* }}} */
/* VIM settings {{{
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * soft-stop-width: 4
 * c indent on
 * End:
 * vim600: sw=4 ts=4 sts=4 cindent fdm=marker et
 * vim<600: sw=4 ts=4
 * }}} */
?>