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Bug #39074 Problem with getHostByAddr
Submitted: 2006-10-07 09:23 UTC Modified: 2006-10-19 07:47 UTC
From: webmaster at smiliz dot info Assigned:
Status: Not a bug Package: Unknown/Other Function
PHP Version: 5.2.0RC5 OS: Windows XP
Private report: No CVE-ID: None
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 [2006-10-07 09:23 UTC] webmaster at smiliz dot info 
Description:
------------
OS : windows XP
Apache 2.2.3
PHP 5.2 rc5

getHostByAddr not return host and the performance as reduced  !

Reproduce code:
---------------
$fai = @getHostByAddr($_SERVER['REMOTE_ADDR']);
$fai = str_replace(' ','',$fai); 
$fai = strtolower($fai); 
$rep = explode('.', $fai);
if ( $rep[0] == "" ) {
    $reponse = "Inconnu";
}elseif ( $rep[1] == "" ){
 $reponse = ucwords($rep[0]);
}else{
 $reponse = ucwords($rep[count($rep)-2]).".".strtolower($rep[count($rep)-1]);
}
echo $reponse;


echo var_dump(getHostByAddr($_SERVER['REMOTE_ADDR']));
=> result : string(13) "xxx.xxx.xxx.xxx" 

Expected result:
----------------
wanadoo.fr

Actual result:
--------------
xxx.xxx

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 [2006-10-07 09:40 UTC] tony2001@php.net 
Please makre sure you have a reachable working DNS server set up and give it a try with PHP CLI.
 [2006-10-07 13:34 UTC] webmaster at smiliz dot info 
I'm verify working dns on my server computer -> OK !
I'm try with php CLI -> getHostByAddr not return host !
But in localhost, getHostByAddr return localhost.
 [2006-10-07 18:09 UTC] tony2001@php.net 
Does `nslookup <ip addr>` work for you?
 [2006-10-07 18:35 UTC] webmaster at smiliz dot info 
yes is work.
nslookup xxx.xxx.xxx.xxx

return =>
Serveur : xxxxxxxxxx
Address: xxx.xxx.xxx.xxx
etc...
 [2006-10-07 18:46 UTC] webmaster at smiliz dot info 
I'm test PHP 5.2RC5 whith apache 1.3.37.
getHostByAddr return correctly Host => wanadoo.fr

But, i'm test PHP 5.2 RC5 with Apache 2.2.3 on the same server and => getHostByAddr not return host
 [2006-10-18 20:53 UTC] tony2001@php.net 
Can't reproduce.
C:\php -r "var_dump(gethostbyname('wanadoo.fr'));"
string(15) "193.252.122.103"

C:\php -r "var_dump(gethostbyaddr('193.252.122.103'));"
string(25) "hpwoo.wanadooportails.com"
 [2006-10-19 04:56 UTC] webmaster at smiliz dot info 
I'm test PHP Version 5.2.0RC6-dev
And this code running :
<?
$SERVER_NAME = $_SERVER["SERVER_NAME"];
$IP = gethostbyname($SERVER_NAME);
$server = gethostbyaddr($IP);
echo "<br>Server IP: $IP";
echo "<br>Server Name: $server"; 
?>

gethostbyaddr return expected result.

Thank you.
 [2006-10-19 07:47 UTC] tony2001@php.net 
.
 
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