RE: CGI Programming - how to debug

Find the job that is running your CGI program, start a service program for
that job, then start debug for the program and set your breakpoints.  Then
do your web thing and when it executes it should break as normal.  Kinda
like debugging a batch job.

Here's a tip... because more than one job can run your CGi program within
the instance, end the HTTP server instance and then start it again with the
parameters '-minat 1 maxat 1'.  This will ensure that only one job in your
instance will run CGI programs.

The job you want to start a service job, when the job log is viewed should
say something like:
"Job 058692/QTMHHTTP/xxxxxxxx started on 12/20/99 at 08:23:11 in subsystem 
  QHTTPSVR in QHTTPSVR. Job entered system on 12/20/99 at 08:23:11.  
This is a CGI job for IBM HTTP Server instance xxxxxxx."

You do NOT want to start a service job for the job that says:
"This is a multiple thread capable CGI job for..."

The key here is multiple thread capable.  This if for Java stuff.


I did an article on this for AS/400 NetJava Expert a few months back
entitled "CGI Programming:  A Bug's Life".   If you have backissues, it
explains this process a little more throuroughly.

Bradley V. Stone
BVS/Tools - www.bvstools.com
Netshare400 - www.netshare400.com



> -----Original Message-----
> From: Gade_R_Reddy@consecofinance.com
> [mailto:Gade_R_Reddy@consecofinance.com]
> Sent: Monday, December 20, 1999 1:43 PM
> To: RPG400-L@midrange.com
> Subject: RE: CGI Programming
> 
> 
> 
> How can i debug a CGI program???.
> 
> Thanks
> Gade.
> 
> 
> 
> 
> 
> "Stone, Brad V (TC)" <bvstone@taylorcorp.com>@midrange.com on 12/20/99
> 11:31:58 AM
> 
> Please respond to RPG400-L@midrange.com
> 
> Sent by:  owner-rpg400-l@midrange.com
> 
> 
> To:   "'RPG400-L@midrange.com'" <RPG400-L@midrange.com>
> cc:
> Subject:  RE: CGI Programming
> 
> 
> If your web page that is calling the CGI program uses the GET method,
> you'll
> have QUERY_STRING available to your program using the GetEnv 
> API without
> doing anything.  Most other environment variables are just 
> there for the
> taking, so to speak.
> 
> For CGI programming, you should be using the xxxENVVAR commands.  You
> should
> use the QtmhGetEnv (what I call GetEnv) API.  Then you use 
> the QtmhCvtDB
> API
> to convert them to usable data.
> 
> As stated before, an alternative to the GetEnv then CvtDB 
> method is to use
> the QzhbCGIParse API.
> 
> They're not dumb questions...  I just hope this makes sense.  ;)
> 
> Bradley V. Stone
> BVS/Tools - www.bvstools.com
> Netshare400 - www.netshare400.com
> 
> > -----Original Message-----
> > From: Gade_R_Reddy@consecofinance.com
> > [mailto:Gade_R_Reddy@consecofinance.com]
> > Sent: Monday, December 20, 1999 10:47 AM
> > To: RPG400-L@midrange.com
> > Subject: RE: CGI Programming
> >
> >
> >
> > Does the Query_String variable is created automatically by
> > the CGI program
> > Or do i have to add by using ADDENVVAR command??. How do i create a
> > variable???.
> >
> > When would we use these commands ADDENVVAR, CHGENVVAR,WRKENVVAR.???.
> >
> > Sorry to ask such dumb questions.
> >
> > Thanks.
> > Gade.
> 
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