Bug 46530

Please use a user support forum such as the users mailinglist for help questions.

When you do, be sure to tell us what changed when you updated apache.  Did you run exactly the same build (e.g. using the old config.nice) and overlay it on the old one, or did you install it somewhere new?  And what happens when you run your program under a simulator such as cg-eye offline?

Since you get the usage message of your cgi I'm wildly guessing it could be BZ 46380. Are you using the worker MPM? 46380 does not occur with prefork.

You can apply the patch

http://svn.apache.org/viewvc?view=rev&revision=726636

and report back, whether it helps, so that we add it to the backport list.

(In reply to comment #2)
> Since you get the usage message of your cgi I'm wildly guessing it could be BZ
> 46380. Are you using the worker MPM? 46380 does not occur with prefork.
> 
> You can apply the patch
> 
> http://svn.apache.org/viewvc?view=rev&revision=726636
> 
> and report back, whether it helps, so that we add it to the backport list.
> 

We are using MPM.  I will try it with prefork and report what happens.

We did suspect it might be mod_cgid when we saw this 2.2.10 revision notes:

  *) mod_cgid: Pass along empty command line arguments from an ISINDEX
     query that has consecutive '+' characters in the QUERY_STRING,
     matching the behavior of mod_cgi.
     [Eric Covener]

I got the patch, as you suggested, from: http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/generators/mod_cgid.c?view=markup&pathrev=726636

But compiling it with 2.2.11 I get the following error below.

mod_cgid.c: In function `get_req':
mod_cgid.c:350: error: `core_request_config' undeclared (first use in this function)
mod_cgid.c:350: error: (Each undeclared identifier is reported only once
mod_cgid.c:350: error: for each function it appears in.)
mod_cgid.c:350: error: `temp_core' undeclared (first use in this function)
mod_cgid.c:368: error: `DYNAMIC_MODULE_LIMIT' undeclared (first use in this function)
mod_cgid.c:370: error: parse error before ')' token
mod_cgid.c: In function `send_req':
mod_cgid.c:462: error: `core_module' undeclared (first use in this function)
mod_cgid.c: In function `cgid_server':
mod_cgid.c:625: error: `ap_unixd_config' undeclared (first use in this function)
mod_cgid.c: In function `cgid_init':
mod_cgid.c:877: error: `ap_preloaded_modules' undeclared (first use in this function)
make[3]: *** [mod_cgid.lo] Error 1
make[3]: Leaving directory `/apps/home/ramid/src/httpd-2.2.11/modules/generators'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/apps/home/ramid/src/httpd-2.2.11/modules/generators'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/apps/home/ramid/src/httpd-2.2.11/modules'
make: *** [all-recursive] Error 1

(In reply to comment #3)
> (In reply to comment #2)
> We are using MPM.  I will try it with prefork and report what happens.

You meant "We are using the worker MPM" ?

> I got the patch, as you suggested, from:
> http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/generators/mod_cgid.c?view=markup&pathrev=726636
> 
> But compiling it with 2.2.11 I get the following error below.
> ...

Sorry, you misunderstood my link

http://svn.apache.org/viewvc?view=rev&revision=726636

You can not simply copy the f8ull mod_cgid from trunk to version 2.2. What you can do is using the link to the changes (link below "text changed"), which is

http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/generators/mod_cgid.c?r1=726636&r2=726635&pathrev=726636

There you can see, that the fix is a simple one line change:

--- httpd/httpd/trunk/modules/generators/mod_cgid.c	2008/12/15 07:40:57	726635
+++ httpd/httpd/trunk/modules/generators/mod_cgid.c	2008/12/15 07:47:30	726636
@@ -201,7 +201,7 @@
     char *w;
     int idx = 0;
 
-    if (ap_strchr_c(args, '=')) {
+    if (!(*args) || ap_strchr_c(args, '=')) {
         numwords = 0;
     }
     else {


you can apply to your version of 2.2.11. I checked 2.2.11, the same line that was changed in trunk is there in 2.2.11 as well. In 2.2.11 it is line number 206 instead of line number 204.

Regards,

Rainer

Thank you, Rainer.  The mod_cgid.c fix works for us and we've confirmed it in several regression tests.

*** This bug has been marked as a duplicate of bug 46380 ***