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<?php
/*
* License Information:
*
* Net_DNS: A resolver library for PHP
* Copyright (c) 2002-2003 Eric Kilfoil eric@ypass.net
*
* 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_Question object definition {{{ */
/**
* Builds or parses the QUESTION section of a DNS packet
*
* Builds or parses the QUESTION section of a DNS packet
*
* @package Net_DNS
*/
class Net_DNS_Question
{
/* class variable definitions {{{ */
var $qname = null;
var $qtype = null;
var $qclass = null;
/* }}} */
/* class constructor Net_DNS_Question($qname, $qtype, $qclass) {{{ */
function Net_DNS_Question($qname, $qtype, $qclass)
{
$qtype = !is_null($qtype) ? strtoupper($qtype) : 'ANY';
$qclass = !is_null($qclass) ? strtoupper($qclass) : 'ANY';
// Check if the caller has the type and class reversed.
// We are not that kind for unknown types.... :-)
if ( ( is_null(Net_DNS::typesbyname($qtype)) ||
is_null(Net_DNS::classesbyname($qtype)) )
&& !is_null(Net_DNS::classesbyname($qclass))
&& !is_null(Net_DNS::typesbyname($qclass)))
{
list($qtype, $qclass) = array($qclass, $qtype);
}
$qname = preg_replace(array('/^\.+/', '/\.+$/'), '', $qname);
$this->qname = $qname;
$this->qtype = $qtype;
$this->qclass = $qclass;
}
/* }}} */
/* Net_DNS_Question::display() {{{*/
function display()
{
echo $this->string() . "\n";
}
/*}}}*/
/* Net_DNS_Question::string() {{{*/
function string()
{
return $this->qname . ".\t" . $this->qclass . "\t" . $this->qtype;
}
/*}}}*/
/* Net_DNS_Question::data(&$packet, $offset) {{{*/
function data($packet, $offset)
{
$data = $packet->dn_comp($this->qname, $offset);
$data .= pack('n', Net_DNS::typesbyname(strtoupper($this->qtype)));
$data .= pack('n', Net_DNS::classesbyname(strtoupper($this->qclass)));
return $data;
}
/*}}}*/
}
/* }}} */
/* 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
* }}} */
?>
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