Date: Fri, 12 Aug 2005 20:14:43 -0400 From: Mike Meyer <mwm-keyword-hackers.e471b2@mired.org> To: Brooks Davis <brooks@one-eyed-alien.net> Cc: hackers@freebsd.org, =?iso-8859-1?Q?Jo=E3o?= Carlos Mendes Luis <jonny@jonny.eng.br> Subject: Re: File create permissions, what am I missing? Message-ID: <17149.15219.714658.707699@bhuda.mired.org> In-Reply-To: <20050812233728.GA22225@odin.ac.hmc.edu> References: <42FD15EA.8050500@jonny.eng.br> <20050812233728.GA22225@odin.ac.hmc.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
In <20050812233728.GA22225@odin.ac.hmc.edu>, Brooks Davis <brooks@one-eyed-alien.net> typed: > On Fri, Aug 12, 2005 at 06:34:34PM -0300, Joćo Carlos Mendes Luis wrote: > > In a directory with -rwxrwxrwx, any user can create files, but who should > > be the owner/group of this file? > > > > Long time ago in Unix history, the owner would be the user who created the > > file, and the group would be the users's primary group. > > > > Later, IIRC, if the directory group was one of the user's secondary groups, > > the file would also be from this group. > > > > A later modification defined that a setgid directory would effect in all > > files created belonging to the directory's user. > > > > Am I correct? > > > > But I have already tested 3 system, 2 with 5-stable and 1 with 4-stable, in > > which the created file inside a -rwxrwxrwx directory is created belonging > > to the directory's group, WITHOUT the setgid bit. What did I miss? > > On BSD systems, the group of a file is always the group of the directory > it is in. This differs from SysV UNIX. The resident grey-beard at work > feels this is a new and annoying behavior. (i.e. it wasn't always this > way. :) SysV lets you toggle that behavior on a per-directory basis. Turn the setgid bit on in the directory, and files created in it will be owned by the group that owns the directory. <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/consulting.html Independent Network/Unix/Perforce consultant, email for more information.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?17149.15219.714658.707699>