RE: QzshSystem API ... almost there...

[Scott Klement <klemscot@xxxxxxxxxxxx>]

On Thu, 4 Sep 2003, Joel Cochran wrote:
>
> Is there anything I can do with the Exit Code?  Is this where I need to
> use your WIF* procedures?  The ones listed here:
> http://archive.midrange.com/rpg400-l/200204/msg00176.html
>

You can use WIFEXITED() to determine if the program exited (rather than
being stopped by some other means)

If it did exit, you can use WEXITSTATUS() to get the exit status.   The
documentation for the command that you're running may help you here.
It may something like (this is just an example):
       program exits with 1 if file not found, with 2 if another error
       occurred.

In which case, you can check the exit status to see what happened.
So far, I haven't found IBM's manuals to be that verbose about the exit
status.   Take the manual page for rm for example:

http://publib.boulder.ibm.com/iseries/v5r2/ic2924/info/rzahz/rm.htm

See, under "Exit Status" it basically just says "0 if everything was
deleted or >0 if an error occurs"

So, that's what the exit status is...   not sure how helpful that is.
Generally, I just check the return code of QzshSystem() for <0 to see
if the API errored out (very rare), 0 for success, or >0 for the command
errored out.

If more detail than that is required, I skip using QShell and write my
own routines using the IFS API :)