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From Jim Patterson <Jim.Patter...@Cognos.COM>
Subject os-windows/6880: CGI applications always fail
Date Wed, 22 Nov 2000 21:07:17 GMT

>Number:         6880
>Category:       os-windows
>Synopsis:       CGI applications always fail
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Wed Nov 22 13:10:01 PST 2000
>Originator:     Jim.Patterson@Cognos.COM
>Release:        2.0a8
Windows 2000 SP1
Visual C++ 5.0 SP3
Any CGI executable that I run via a common cgi-bin URL will fail for Apache running on the
Windows platform.  It appears that Apache is putting quotes around the unqualified part of
the filename. If a shell were being run, that might work. However, actual programs are run
under Win32 with CreateProcess which expects a valid filename. Embedded quotes are taken as
part of the filename, not as "meta-characters" to be stripped off.
This needs to be attempted on the Win32 platform.
Create an executable CGI application and put it in the configured cgi-bin directory e.g. C:/Apache/cgi-bin.
I'm using one called "printenv.cgi". 
Invoke it with a URL like:

You will get an error in the browser, and the error log will contain a message such as the
[Wed Nov 22 15:04:44 2000] [error] [client] (22123)The filename, directory name, or
volume label syntax is incorrect.  : couldn't create child process: 22123: e:/apache/cgi-bin/printenv.cgi
[Wed Nov 22 15:04:44 2000] [error] [client] couldn't spawn child process: c:/apache/cgi-bin/printenv.cgi
Line 471 of src/modules/standard/mod_cgi.c (specific to WIN32). Change it to
    quoted_filename = apr_pstrcat(p, "\"", r->filename, "\"", NULL);

It seems to be okay to quote the entire filename, but not just the tail.

I don't know why the filename is being quoted, though. This fix may affect scripts that need
to be passed to an interpreter of some sort.
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