Description:
------------
When trying to resolv the ip address of a hostname given in /etc/hosts, it's works fine, but does not work when trying to resolv via the DNS server though.

btw: those test code works fine with php 5.2.1

Reproduce code:
---------------
var_dump(dns_get_record("xxx.xxx.com"));
var_dump(fsockopen("xxx.xxx.com", 80, $error, $errstr));


Expected result:
----------------
array(1) {
  [0]=>
  array(5) {
    ["host"]=>
    string(12) "xxx.xxx.com"
    ["type"]=>
    string(1) "A"
    ["ip"]=>
    string(13) "192.168.200.6"
    ["class"]=>
    string(2) "IN"
    ["ttl"]=>
    int(86400)
  }
}
resource(20) of type (stream)

Actual result:
--------------
array(1) {
  [0]=>
  array(5) {
    ["host"]=>
    string(12) "xxx.xxx.com"
    ["type"]=>
    string(1) "A"
    ["ip"]=>
    string(13) "192.168.200.6"
    ["class"]=>
    string(2) "IN"
    ["ttl"]=>
    int(86400)
  }
}
<br />
<b>Warning</b>:  fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in <b>/opt/wwwroot/qun_inner/modules/club/my_signatures.php</b> on line <b>68</b><br />
<br />
<b>Warning</b>:  fsockopen() [<a href='function.fsockopen'>function.fsockopen</a>]: unable to connect to xxx.xxx.com:80 (Unknown error) in <b>/opt/wwwroot/qun_inner/modules/club/my_signatures.php</b> on line <b>68</b><br />
bool(false)