pfsockopen hangs for 30 seconds if connection is established
| 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 | ||
[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