/**
* formats an IPv6 IP address in the preferred format
*
* @param string $address The IPv6 IP address to format
*
* @return string The IPv6 IP address formatted in the new format
* @access public
* @deprecated function deprecated in 1.1.3
*
*/
public static function formatIPv6($address)
{
return Net_DNS2::expandIPv6($address);
}
/**
* builds a new Net_DNS2_Packet_Request object
*
* @param string $name the domain name for the packet
* @param string $type the DNS RR type for the packet
* @param string $class the DNS class for the packet
*
* @return boolean
* @throws Net_DNS2_Exception
* @access public
*
*/
public function set($name, $type = 'A', $class = 'IN')
{
//
// generate a new header
//
$this->header = new Net_DNS2_Header();
//
// add a new question
//
$q = new Net_DNS2_Question();
//
// allow queries directly to . for the root name servers
//
if ($name != '.') {
$name = trim(strtolower($name), " \t\n\r\v.");
}
$type = strtoupper(trim($type));
$class = strtoupper(trim($class));
//
// check that the input string has some data in it
//
if (empty($name)) {
throw new Net_DNS2_Exception('empty query string provided', Net_DNS2_Lookups::E_PACKET_INVALID);
}
//
// if the type is "*", rename it to "ANY"- both are acceptable.
//
if ($type == '*') {
$type = 'ANY';
}
//
// check that the type and class are valid
//
if (!isset(Net_DNS2_Lookups::$rr_types_by_name[$type]) || !isset(Net_DNS2_Lookups::$classes_by_name[$class])) {
throw new Net_DNS2_Exception('invalid type (' . $type . ') or class (' . $class . ') specified.', Net_DNS2_Lookups::E_PACKET_INVALID);
}
if ($type == 'PTR') {
//
// if it's a PTR request for an IP address, then make sure we tack on
// the arpa domain.
//
// there are other types of PTR requests, so if an IP adress doesn't match,
// then just let it flow through and assume it's a hostname
//
if (Net_DNS2::isIPv4($name) == true) {
//
// IPv4
//
$name = implode('.', array_reverse(explode('.', $name)));
$name .= '.in-addr.arpa';
} else {
if (Net_DNS2::isIPv6($name) == true) {
//
// IPv6
//
$e = Net_DNS2::expandIPv6($name);
if ($e !== false) {
$name = implode('.', array_reverse(str_split(str_replace(':', '', $e))));
$name .= '.ip6.arpa';
} else {
throw new Net_DNS2_Exception('unsupported PTR value: ' . $name, Net_DNS2_Lookups::E_PACKET_INVALID);
}
}
}
}
//
// store the data
//
$q->qname = $name;
$q->qtype = $type;
$q->qclass = $class;
$this->question[] = $q;
//
// the answer, authority and additional are empty; they can be modified
// after the request is created for UPDATE requests if needed.
//
$this->answer = array();
$this->authority = array();
$this->additional = array();
return true;
}