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What's the reason for switching profiles ?

No other platform does this that I'm aware of.

In general a daemon job or web server/service generally runs under a specific server/daemon user profile and then all work is done under that user.

However on IBMi you can certainly authenticate via the user profile check API, I would not be switching user profiles.

Unless you have a specific reason to do so.

I did this with a product several years back for recreating spool files with the right user and it forced us to store user/password combos in a table. Ugh.

Richard Schoen
Web: http://www.richardschoen.net
Email: richard@xxxxxxxxxxxxxxxxx


message: 1
date: Mon, 20 Sep 2021 19:32:00 +0200
from: Patrik Schindler <poc@xxxxxxxxxx>
subject: [C400-L] User Profile handling in ancient release(s)


lately I was following the blog of Cris Hird to learn about "daemon programming". He provides a great example with a main task (testsvr) spawning a worker task (worker) on request.


For switching the user profile on the fly, he uses functions from qsyphandle.h. These functions aren't available on OS/400 V4R5.

POSIX setuid() doesn't work, because the function isn't referenced in sys/types.h, nor in unistd.h (as it's in Linux).

Does anybody remember how user switching was done two decades ago in OS/400?

:wq! PoC

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