Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:29785
Return-Path: <rasmus@lerdorf.com>
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Delivered-To: mailing list internals@lists.php.net
Received: (qmail 28561 invoked by uid 1010); 26 May 2007 00:29:57 -0000
Delivered-To: ezmlm-scan-internals@lists.php.net
Delivered-To: ezmlm-internals@lists.php.net
Received: (qmail 28546 invoked from network); 26 May 2007 00:29:57 -0000
Received: from unknown (HELO lists.php.net) (127.0.0.1)
  by localhost with SMTP; 26 May 2007 00:29:57 -0000
Authentication-Results: pb1.pair.com header.from=rasmus@lerdorf.com; sender-id=unknown
Authentication-Results: pb1.pair.com smtp.mail=rasmus@lerdorf.com; spf=permerror; sender-id=unknown
Received-SPF: error (pb1.pair.com: domain lerdorf.com from 204.11.219.139 cause and error)
X-PHP-List-Original-Sender: rasmus@lerdorf.com
X-Host-Fingerprint: 204.11.219.139 mail.lerdorf.com  
Received: from [204.11.219.139] ([204.11.219.139:51965] helo=mail.lerdorf.com)
	by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP
	id 5A/44-23498-38F77564 for <internals@lists.php.net>; Fri, 25 May 2007 20:29:57 -0400
Received: from trainburn-lm-corp-yahoo-com.local (032-278-099.area1.spcsdns.net [70.0.155.185])
	(authenticated bits=0)
	by mail.lerdorf.com (8.14.1/8.14.1/Debian-4) with ESMTP id l4Q0Tl0h032562
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT);
	Fri, 25 May 2007 17:29:50 -0700
Message-ID: <46577F7A.6000200@lerdorf.com>
Date: Fri, 25 May 2007 17:29:46 -0700
User-Agent: Thunderbird 2.0.0.0 (Macintosh/20070326)
MIME-Version: 1.0
To: Oliver Block <lists@block-online.eu>
CC:  internals@lists.php.net
References: <4638E608.2090202@adaniels.nl> <200705252357.28302.lists@block-online.eu> <46576308.5070108@adaniels.nl> <200705260208.18082.lists@block-online.eu>
In-Reply-To: <200705260208.18082.lists@block-online.eu>
X-Enigmail-Version: 0.95.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: ClamAV 0.90.2/3302/Fri May 25 12:37:03 2007 on colo.lerdorf.com
X-Virus-Status: Clean
Subject: Re: [PHP-DEV] Re: Still having lstat trouble
From: rasmus@lerdorf.com (Rasmus Lerdorf)

Oliver Block wrote:
> Hi Arnold,
> 
> Am Samstag, 26. Mai 2007 00:28 schrieben Sie:
>> If I need to run gdb please let me know, 
> 
> I did a gdb and on my system (debian, CLI). filetype returns 'dir' as well.
> 
> my code was php -r 'filetype("/tmp/link-test");'
> 
> Where /tmp/link-test is a link to a directory /tmp/pear.
> 
> This is some of the output:
> 
> I set a breakpoint to php_stat. You can see the parameters passed to it.
> 
> Breakpoint 1, php_stat (filename=0xb78f4584 "/tmp/link-test",
>     filename_length=14, type=8, return_value=0xb78f5044, tsrm_ls=0x87b8018)
>     at /usr/local/src/php-5.2.2/ext/standard/filestat.c:730
> 
> Some of the steps beginning at line 851 (standard/filestat.c, php_stat())
> 
> 851             switch (type) {
> (gdb)
> 881                     if (S_ISLNK(ssb.sb.st_mode)) {
> (gdb)
> 884                     switch(ssb.sb.st_mode & S_IFMT) {
> (gdb)
> 887                     case S_IFDIR: RETURN_STRING("dir", 1);
> (gdb)
> 981     }

Right, so the (ssb.sb.st_mode & S_IFMT) is S_IFDIR which is basically
the OS telling us that it is a directory.  I don't see what we can do if
the OS is not telling us the right thing.  The filestat code is a bit
convoluted trying to deal with lots of strange operating systems, but
this part of it seems pretty clear.

-Rasmus