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Bug #40279 fsockopen broken on IPv6
Submitted: 2007-01-29 22:02 UTC Modified: 2009-06-13 16:33 UTC
Votes:6
Avg. Score:4.0 ± 1.0
Reproduced:3 of 3 (100.0%)
Same Version:1 (33.3%)
Same OS:3 (100.0%)
From: SiliconFiend at gmail dot com Assigned:
Status: Not a bug Package: Sockets related
PHP Version: 5.2.0 OS: Windows XP SP2
Private report: No CVE-ID: None
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 [2007-01-29 22:02 UTC] SiliconFiend at gmail dot com 
Description:
------------
Bug #30057 seems to have regressed. On Windows, when IPv6 is enabled, [::1] is returned as the first address for localhost, so using localhost exhibits the same problem.

Other info: Using PHP 5.2.0 in mod_php with Apache 2.2.3 which was included with XAMPP; IPv6 Support is reported as enabled in phpinfo(). Apache displays page when http://[::1]/ is entered in Firefox, so Apache is responding to IPv6 requests on port 80.


Reproduce code:
---------------
$handle = fsockopen('[::1]', 80, $errno, $errstr, 5);
if (empty($handle)) {
    echo 'Error ' . $errno . ': ' . $errstr . '<br/>';
    exit("Can't open socket");
}
Or use the reproduce code in #30057.

Expected result:
----------------
No error.

Actual result:
--------------
Warning: fsockopen() [function.fsockopen]: unable to connect to [::1]:80 (A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. )
Error 10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Can't open socket

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 [2007-01-30 09:02 UTC] tony2001@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.2-win32-latest.zip
 [2007-01-30 18:33 UTC] SiliconFiend at gmail dot com 
Same result with the CVS snapshot. I tried both php.ini-dist and php.ini-recommended files for the php.ini. The only difference is that php.ini-recommended didn't display the errors. One note, though, probably unrelated--using the php5apache2.dll module file from this snapshot did not allow the server to start--nothing in the error log; it just immediately stopped after attempting to start it. I had been using the php5apache2.dll with the PHP version 5.2.0 distributed with XAMPP. This was the default configuration; I don't know why they didn't use 2_2. Anyway, changing the LoadModule directive to point to php5apache2_2.dll allowed the server to start.
 [2007-02-01 06:15 UTC] SiliconFiend at gmail dot com 
I should be more clear. Using php.ini-recommended suppressed the php warning/error output, but the error still occurred.
 [2007-02-12 19:16 UTC] tony2001@php.net 
How exactly did you enable IPv6 support in your Windows?

>when http://[::1]/ is entered in Firefox, so Apache
>is responding to IPv6 requests on port 80.

Try using this address in telnet and MSIE.
Do they work too?
 [2007-02-17 17:31 UTC] SiliconFiend at gmail dot com 
I think I installed IPv6 on Windows using the "Install..."->Protocol function on the Properties window for my network connection. You can also open a command window and type "ipv6 install" to accomplish the same thing.

Internet Explorer can't handle IPv6 literal addresses (such as [::1]) in the URL. See http://blogs.msdn.com/ie/archive/2006/12/06/file-uris-in-windows.aspx

Unfortunately, in an effort to work around this problem, I made some changes to my IPv6 configuration and now Apache is no longer binding to my IPv6 address, so I can't display a page even in Firefox right now. I'm trying to fix it.
 [2007-03-14 01:00 UTC] php-bugs at lists dot php dot net 
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
 [2007-04-28 17:48 UTC] giunta dot gaetano at gmail dot com 
Very weird, this started happening to me, too.

Symptoms:
+ ping 'localhost' returns ::1
+ using "telnet localhost 80" works, ie apache responds ok
+ php fsockopen(localhost) stalls, plus apache show no access logs, nor etheral captures any packets on any nic

How ipv6 got enabled is a mystery to me. It is explicitly disabled on ALL network connections I have in use. All I did today was enabling the wifi nic (intel 2200) to connect to my new home lan... Maybe the dns server is broadcasting ipv6 addresses for localhost (wtf) ??? I tried ipconfig /flushdns to no avail. No trace of ::1 in etc/hosts either...

btw, ipconfig /displaydns shows:

         5.64.3.10.in-addr.arpa
         ----------------------------------------
         Nome record . . . . . : 5.64.3.10.in-addr.arpa.
         Tipo record . . . . . : 12
         Durata (TTL). . . . . : 0
         Lunghezza dati. . . . : 4
         Sezione . . . . . . . : Risposta
         Record PTR  . . . . . : srvmappemxp


         1.0.0.127.in-addr.arpa
         ----------------------------------------
         Nome record . . . . . : 1.0.0.127.in-addr.arpa.
         Tipo record . . . . . : 12
         Durata (TTL). . . . . : 0
         Lunghezza dati. . . . : 4
         Sezione . . . . . . . : Risposta
         Record PTR  . . . . . : localhost


         srvmappemxp
         ----------------------------------------
         Nome record . . . . . : srvmappemxp
         Tipo record . . . . . : 1
         Durata (TTL). . . . . : 0
         Lunghezza dati. . . . : 4
         Sezione . . . . . . . : Risposta
         Record A (Host) . . . : 10.3.64.5


         localhost
         ----------------------------------------
         Nome record . . . . . : localhost
         Tipo record . . . . . : 1
         Durata (TTL). . . . . : 0
         Lunghezza dati. . . . : 4
         Sezione . . . . . . . : Risposta
         Record A (Host) . . . : 127.0.0.1
 [2009-06-13 16:02 UTC] ray at kristenandray dot net 
I'm experiencing this issue as well. Anything I can do to help someone look into it?

System:
OS: Windows Vista Home Premium x64
PHP: Precompiled v5.2.8
Server: MS Expression Web 2 Development Server (Cassini?)

Not sure if it matters, but configuration of the integrated server in Expression web requires using php-cgi.exe, rather than php.exe

It would be nice to get this fixed...
 [2009-06-13 16:33 UTC] pajoye@php.net 
::1 being resolved as 1st address is not a php problem. See the other localhost with IPv6 issues for an explanation and how to work around this problem.
 
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