Re: Rev 22 on the Prime emulator

On Feb 8, 12:10 pm, ap...@xxxxxxxxxxxxxxxxxx wrote:

Well, steady on. My introduction to PRIMOS was on a P400 running rev
17. It seemed good at the time but now it would probably be regarded
by most as a pile of poo. It didnt even have user logins! No ACLs, no
CPL, no FORTRAN 77 (only FORTRAN IV).

Wait - my intro to Primos was rev 12, with 6-character filenames (rev
13 introduced 32-character filenames), and we had user logins even
back then. There was no central user database like the SAD that came
into being at rev 19. The way it worked is that any top-level UFD
(User File Directory) was also a valid login. UFD's had an owner and
non-owner password. You had to know the owner password to login.
Unfortunately, all of the Prime system directories were shipped
without passwords, so anyone knowing this could login to SYSTEM,
CMDNC0, LIB, etc! Individual files had both owner and non-owner
protection numbers. So when you attached to a UFD as a non-owner, you
only got the non-owner access rights for all of the files. If you
didn't know the owner or non-owner password, you couldn't attach to
the UFD. There was also a "magic" password that worked on the MFD: I
think it was ^z^y^x^w^v^u, or something like that. It always made you
an owner of the MFD. With that, you could use GPASS subroutine calls
to get the owner and non-owner password of any directory underneath.
Funny, eh?

Prime corrected all this nonsense with ACL directories and user
profiles at rev 19.

Jim
.

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