#48473 [Opn->Fbk]: $errstr in stream_socket_client() periodically not set when error occurs

From: Date: Fri, 18 Sep 2009 19:01:44 +0000
Subject: #48473 [Opn->Fbk]: $errstr in stream_socket_client() periodically not set when error occurs
References: 1  Groups: php.bugs 
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 ID:               48473
 Updated by:       jani@php.net
 Reported By:      nick dot telford at gmail dot com
-Status:           Open
+Status:           Feedback
 Bug Type:         Streams related
 Operating System: CentOS 5.3
 PHP Version:      5.2.9
 New Comment:

Please try using this snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/




Previous Comments:
------------------------------------------------------------------------

[2009-06-04 16:46:58] nick dot telford at gmail dot com

Description:
------------
I've noticed that some errors in stream_socket_client()s connection
don't populate errstr with an error. As far as I can tell, errno is
always populated.

The most consistent case I've found for this if when the error code is
16 - $errstr SHOULD be "Device or resource busy" (according to some
googling), however, it is empty.

I've also come across many errono's that are > 127 and have no errstr.
e.g. 5736689

Reproduce code:
---------------
Unless someone knows how to reproduce "Device or resource busy", then I
can't create any code to reproduce errno 16 having no errstr.

I can reproduce the oddly high errno's (with no errstr) as the example
above appears to be for invalid URLs:

<?php
$stream = stream_socket_client('tcp://tinyu:80', $errno, $errstr);
echo "$errno\n";
echo "'$errstr'\n";

Expected result:
----------------
Not sure what the error number *should* be, possibly 22 (EINVAL),
Invalid argument. I'll go with that:

22
'Invalid argument'

Actual result:
--------------
5736689
''


------------------------------------------------------------------------


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