Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:17371
Mailing-List: contact internals-help@lists.php.net; run by ezmlm
Message-ID: <46.D7.33635.72170E24@pb1.pair.com>
To: internals@lists.php.net
Date: Thu, 21 Jul 2005 22:08:02 -0600
User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Subject: new bug in 5.1.0b3 with length param in fread() with local files
From: cellog@php.net (Greg Beaver)

Hi,

I have noticed that fread()'s behavior has changed between PHP 5.0.4 and 
PHP 5.1.0b3.  Basically, http://pear.chiaraquartet.net/go-pear.phar 
works in PHP 5.0.4 and fails in 5.1.0b3 because of this change.  The 
line in question of the .phar from PHP_Archive is:

         fread($this->_file, $this->internalFileLength + 
$this->footerLength);

Basically, a .phar is a .tar.  For files inside the .phar larger than 
16000 bytes, the fread above fails with the incorrect error message:

PHP Warning:  fread(): Length parameter must be greater than 0 in 
c:\php5\pear\PHP\Archive.php on line 193

Note that the failure is OS-independent.

However, the actual length parameter is 21,155, which is not less than 
zero, unless you consider it to be a negative number in binary.  After 
the fread in PHP 5.0.4, ftell() reveals that the pointer has advanced to 
22016, whereas in 5.1.0b3, it has only advanced to 16384.

According to the notes in http://bugs.php.net/bug.php?id=30936 this 
should work with a local file, so should I re-open 30936, or is this a 
new bug?

Greg