From: xilon dot jul at gmail dot com
Operating system: Linux 3.5.0-23-generic
PHP version: 5.4.14
Package: Sockets related
Bug Type: Bug
Bug description:socket_select returns false and socket_last_error returns 0
(success)
Description:
------------
When a socket ressource previously watched for read I/O in socket_select is
closed, the socket_select function would return false and throw a warning
saying
"Not a valid socket ressource".
The fact is that subsequent call to socket_last_error() returns 0 which
translates
to success using socket_strerror().
Test script:
---------------
$socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
if (false === socket_bind($socket, '0.0.0.0', 5555)) {
die('bind()');
}
$read[] = $socket;
// voluntarily close the socket
socket_close($socket);
// Will throw a warning and return false
$retval = socket_select($read, $w = null, $e = null, 1);
echo socket_last_error(); // returns 0
Expected result:
----------------
As the C select system call, closing the socket should return a valid
system error
code.
The C counterpart of this PHP sample above gives :
select(): Bad file descriptor (9 => EBADF)
Actual result:
--------------
The result of socket_last_error is 0.
--
Edit bug report at https://bugs.php.net/bug.php?id=64654&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=64654&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=64654&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=64654&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=64654&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=64654&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=64654&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=64654&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=64654&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=64654&r=support
Expected behavior: https://bugs.php.net/fix.php?id=64654&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=64654&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=64654&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=64654&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64654&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=64654&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=64654&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=64654&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64654&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=64654&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=64654&r=mysqlcfg
