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Re: proc_open, fwrite, 16384 bytes magic

Posted by Curt Zirzow on 11/02/05 02:44

On Tue, 01 Nov 2005 19:10:31 +0100, Max Belushkin wrote:

> Hi everyone,
>
> I've ran into a rather strange problem with Apache 2.0.x, PHP 4.4.0,
> FreeBSD. When I proc_open qmail-inject, the first 16384 bytes from a
> buffer are accepted perfectly, which makes it an exact 16 KB. If a buffer
> is larger, the rest is discarded. No errors appear anywhere - and I think
> I've looked just about everywhere I could think of by now. This problem
> does not manifest itself on a different installation of Apache 2.0.x, PHP
> 4.3.8, SUSE Linux, but tested against postfix, up to sizes of 95 KB.

If the same test fails on qmail-inject that you used with postfix, i would
assume it is a configuration with qmail. Another test is to feed
qmail-inject the same message you are using with the proc_open() call
directly via the shell:
qmai-inject < /path/to/somefile

or equivalent.


> I've searched Google all over, but could not find any hints. My best
> guess so far is that I'm missing something in configuration directives, or
> it's a qmail problem - although, with qmail-inject fed via cat, everything
> works just fine, regardless of size.

In this case are you sure that the file is being sent via proc_open()? can
you provide a simplified script that does this?


Curt.
--
http://news.zirzow.dyndns.org/

 

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