/usr/share/php/Icinga/Protocol/Dns.php is in php-icinga 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | <?php
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Protocol;
/**
* Discover dns records using regular or reverse lookup
*/
class Dns
{
/**
* Discover all service records on a given domain
*
* @param string $domain The domain to search
* @param string $service The type of the service, like for example 'ldaps' or 'ldap'
* @param string $protocol The transport protocol used by the service, defaults to 'tcp'
*
* @return array An array of all found service records
*/
public static function getSrvRecords($domain, $service, $protocol = 'tcp')
{
$records = dns_get_record('_' . $service . '._' . $protocol . '.' . $domain, DNS_SRV);
return $records === false ? array() : $records;
}
/**
* Get all ldap records for the given domain
*
* @param string $query The domain to query
* @param int $type The type of DNS-entry to fetch, see
* http://www.php.net/manual/de/function.dns-get-record.php for available types
*
* @return array|null An array of record entries
*/
public static function records($query, $type = DNS_ANY)
{
return dns_get_record($query, $type);
}
/**
* Reverse lookup all host names available on the given ip address
*
* @param string $ipAddress
* @param int $type
*
* @return array|null
*/
public static function ptr($ipAddress, $type = DNS_ANY)
{
$host = gethostbyaddr($ipAddress);
if ($host === false || $host === $ipAddress) {
// malformed input or no host found
return null;
}
return self::records($host, $type);
}
/**
* Get the IPv4 address of the given hostname.
*
* @param $hostname The hostname to resolve
*
* @return string|null The IPv4 address of the given hostname or null, when no entry exists.
*/
public static function ipv4($hostname)
{
$records = dns_get_record($hostname, DNS_A);
if ($records !== false && count($records) > 0) {
return $records[0]['ip'];
}
return null;
}
/**
* Get the IPv6 address of the given hostname.
*
* @param $hostname The hostname to resolve
*
* @return string|null The IPv6 address of the given hostname or null, when no entry exists.
*/
public static function ipv6($hostname)
{
$records = dns_get_record($hostname, DNS_AAAA);
if ($records !== false && count($records) > 0) {
return $records[0]['ip'];
}
return null;
}
}
|