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From: snoopy@doghouse.gwd.tek.com (Snoopy)
Newsgroups: comp.unix.wizards
Subject: Re: umask and multiple groups
Message-ID: <9364@tekecs.TEK.COM>
Date: Thu, 12-Nov-87 12:46:28 EST
Article-I.D.: tekecs.9364
Posted: Thu Nov 12 12:46:28 1987
Date-Received: Sun, 15-Nov-87 02:23:19 EST
References: <21241@cmcl2.NYU.EDU>
Sender: nobody@tekecs.TEK.COM
Reply-To: snoopy@doghouse.gwd.tek.com (Snoopy)
Organization: The Daisy Hill Puppy Farm
Lines: 23

In article <21241@cmcl2.NYU.EDU> edler@cmcl2.UUCP (Jan Edler) writes:
>In 4.[23]bsd, when you create a file, the gid of the file is taken from
>the gid of the directory you create it in (even if you aren't a member
>of that group).  It seems to me that the single umask(2) mechanism is
>crippled in this environment.

I agree, this is a pain.

>	- Allow a separate umask in the kernel for each group a user
>	  is a member of.  An extra umask would also be needed for
>	  groups that the user is not a member of.

Should a chgrp then do a chmod for you?  (Probably not.)

>	- Add a file mode mask to each directory, to apply for all
>	  files created there.

Perhaps just using the mode of the directory as an additional mask
would work well.

Snoopy
tektronix!doghouse.gwd!snoopy
snoopy@doghouse.gwd.tek.com