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From John Schmitt <John_Schm...@amat.com>
Subject config/5091: Form handling: Upload = server error when no file is specified
Date Fri, 01 Oct 1999 22:11:42 GMT

>Number:         5091
>Category:       config
>Synopsis:       Form handling: Upload = server error when no file is specified
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Fri Oct  1 15:20:01 PDT 1999
>Originator:     John_Schmitt@amat.com
>Release:        1.3.6
Linux 2.2.5-15 (Redhat 6.0 distrib).  Perl 5.005, w/ CGI.pm
I'm testing using a html & perl script pair of files that are commonly used 
for file-upload.  They are publicly available on:

When a file is specified, it will succeed by uploading the file and displaying
the results page.

However, if the filename is left blank, there is a server error,
and the apache log file indicates "premature end of script headers."

When running the same script using NetscapeFastrack/Unix instead of Apache/Linux,
this bug is not encountered.  I am not absolutely sure of which software
is faulty, but suspect Apache, and am thankful for the free Apache server regardless.
the above URL provides the sample code which uniquely does not work on Apache/Linux.

Perhaps there is an HTML-side fix where you can give the <INPUT Type=FILE> a default
value, so that
it is not null passed to Apache.  This is an unknown workaround, and a true
fix may need another patch to apatchy.
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