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Bug #28055 pfsockopen hangs for 30 seconds if connection is established
Submitted: 2004-04-19 13:06 UTC Modified: 2004-04-19 15:08 UTC
From: chris at deviantart dot com Assigned: wez (profile)
Status: Closed Package: Sockets related
PHP Version: 4.3.6 OS: Linux 2.6.5
Private report: No CVE-ID: None
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From: chris at deviantart dot com
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 [2004-04-19 13:06 UTC] chris at deviantart dot com
Description:
------------
If a connection has already been established, pfsockopen will hang for 30 seconds before returning the correct persistent socket. strace reports the following:

...
connect(3, {sa_family=AF_INET, sin_port=htons(11211), sin_addr=inet_addr("10.0.0.16")}, 16) = -1 EINPROGRESS (Operation now in progress)
select(4, [3], [3], [3], {60, 0})       = 1 (out [3], left {60, 0})
getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
fcntl64(3, F_SETFL, O_RDWR)             = 0
select(4, [3], NULL, NULL, {60, 0}
*hang*

The following patch seems to fix it:

http://cvs.php.net/diff.php/php-src/main/network.c?sa=1&r1=1.83.2.21&r2=1.83.2.20&ty=u

Maybe this needs backporting?

http://cvs.php.net/cvs.php/php-src/main/streams/streams.c?sa=1#rev1.49


Reproduce code:
---------------
<?
$fp = pfsockopen("rembrandt", 11211);
$fp = pfsockopen("rembrandt", 11211);
?>



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 [2004-04-19 14:44 UTC] wez@php.net
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Yep, it did - thanks for bringing this up.
 
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