Re: Procedure changing not passed values

[Jim Langston <jimlangston@xxxxxxxxxxxxxxxx>]

Mike,

Could you, with your authority, overwrite a system program in QSYS or
QGPL or QUSRSYS?  Yes?  So what is to prevent a badly written program
running under your authority to do the same thing?

Regards,

Jim Langston

Me transmitte sursum, Caledoni!

Mike Naughton wrote:
> 
> Barbara,
> 
> I have no problem with not doing "such illegal things", but your statement
> took me aback a little. Are all these bad things really possible? On
> OS/400? I thought, in particular, that the operating system is immune to
> tampering from user programs. OTOH, I can easily believe that my own data
> might be adversely affected. . . .
> 
> RPG400-L@midrange.com writes:
> >You shouldn't experiment with such illegal things.  You can't
> >guess what is on the parameter stack even in a simple case like
> >yours.  You could cause many bad things to happen:
> >  - corrupting the data in your database
> >  - crashing your program
> >  - messing up the operating system, requiring a reinstall
> >
> >Barbara Morris
> 
> Mike Naughton
> Senior Programmer/Analyst
> Judd Wire, Inc.
> 124 Turnpike Road
> Turners Falls, MA  01376
> 413-863-4357 x444
> mnaughton@juddwire.com
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