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Bug #6603 ISAPI Several bugs
Submitted: 2000-09-07 10:48 UTC Modified: 2001-03-08 20:17 UTC
From: jakub at gema dot cz Assigned:
Status: Closed Package: IIS related
PHP Version: 4.0.2 OS: Windows 9X/NT
Private report: No CVE-ID: None
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From: jakub at gema dot cz
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 [2000-09-07 10:48 UTC] jakub at gema dot cz 
I've come accross the following ISAPI bugs. When you try to free the PHP4ISAPI.dll the function zend_hash_copy generates an access violation. The same zend_hash_copy function generates an access vialotation when the function httpextensionproc is executed for the second and more times. The reason I have found this problem is that I'm implementing my own ISAPI server.

One more thing I've found is that the ftell() function sometimes returns a bad position of the file. Sometimes not sometimes yes and the difference is only 1 byte. When I use the same function under the CGI interface (not ISAPI) it works just fine. Hope this will help you.

Thank you
Jakub

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 [2000-11-11 15:25 UTC] dbeu@php.net 
please provide short reproducing code for (still existant?) bugs.
 [2000-11-12 10:55 UTC] jakub at gema dot cz 
I've tested 4.0.3 as well and the problems remain here. About the ISAPI. I've heard that problems happens even on IIS Web server as well. Just a plain .php file will reproduce the problem. 

About the ftell() function, snippet of code:

..
$line = fgets($file, 1024);
echo ftell($file);
..

First time the number echoed is correct, second time not (it's shifted), third time correct, then again not. By the time I mean another page load. Anything more I could help you with?
 [2000-12-15 19:50 UTC] sniper@php.net 
Please try the latest build from http://www.php4win.de/

--Jani
 [2001-01-28 16:54 UTC] jmoore@php.net 
Hmm I cant get this to happen for me at all, Im running IIS 5 under win2k can you give me more information about your setup too and possibly create backtraces as you obviously have a C compiler (if you are implementing your own isapi server ;)

James
 [2001-03-08 20:17 UTC] sniper@php.net 
No feedback.
 
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