Newsgroups: comp.os.msdos.djgpp
From: Bart Oldeman <enbeo AT pg5 DOT enm DOT bris DOT ac DOT uk>
Subject: Re: DJGPP Install Problems (DOSemu/FreeDOS beta 8)
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Organization: University of Bristol, UK
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Date: Thu, 23 May 2002 18:39:59 GMT
Lines: 41
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

In article <aci50u$5ep$1 AT antares DOT lu DOT erisoft DOT se>, Martin Stromberg wrote:
> Bart Oldeman (enbeo AT pg5 DOT enm DOT bris DOT ac DOT uk) wrote:
>: However, DOSEMU uses a certain mapping between DOS and Unix file 
>: attributes/permissions:
> 
>: DOS attribute 	UNIX
>: read-only    <->not writable (1)
>: archive	     <->not executable (2)
>: hidden	     <- filename starts with a dot and is not '..' (3)
> 
>: Don't ask me why this is so, I don't know.
> 
> samba is doing similar things. I think it's because if you want to
> have DOZE specific attributes you have to have somewhere to put them.
> 
> May I suggest that you only use one of the x bits to record the a bit.

We already do so (S_IEXEC == 00100 == user x bit).

>: Maybe rule (2) should be ignored for directories.
> 
> That's a possible solution. But you might consider looking up the
> samba way.

Samba has "map archive = yes" mapping the user x bit to the archive
attribute (without a "NOT", so it's reversed wrt DOSEMU)
it can also do similar tricks for system and hidden files
(group and world x bits).

Samba does not appear to do any such mapping for directories and
always forces the "archive", "system" and "hidden" attributes
off for directories, unless (for hidden) their name starts
with a . in Unix.

Indeed it might be a good idea to make DOSEMU archive mappings
compatible with Samba, including the ability to configure in 
dosemu.conf.

Sorry for becoming a little off-topic here.

Bart