mesg Broke on Stable between 8/21 and 8/28
bugsgrief at bugsgrief.net
Tue Aug 31 04:32:59 PDT 2004
On Mon, 30 Aug 2004 22:52:40 +0900
horio shoichi <bugsgrief at bugsgrief.net> wrote:
> On Sun, 29 Aug 2004 18:56:48 -0700
> Dave Tweten <tweten at nas.nasa.gov> wrote:
> > When I replaced a STABLE build from 8/21 with one from 8/29, "mesg"
> > stopped working on xterms.
> > I treat each xterm as a login shell, and include "mesg n" in .login.
> > The problem seems to be that ownership of /dev/ttyp? is not being
> > transferred to the user anymore. I remember that "options UCONSOLE"
> > was involved in the transfer of ownership. That configuration element
> > was in both the 8/21 and 8/28 kernels; nothing was changed in the
> > config file.
> > I checked the mailing list archives, and there does seem to be some
> > recent action in the tty driver area. Unfortunatly, we were
> > compromised recently, and I'm only now getting my connections to e-mail
> > lists (including this one) re-established, so my knowledge of recent
> > list traffic is limited to what I can find on the web site.
> > Does anyone have any idea what has caused the change?
> > --
> > M/S 258-5 |1024-bit PGP fingerprint:|tweten at nas.nasa.gov
> > NASA Ames Research Center| 41 B0 89 0A 8F 94 6C 59| (650) 604-4416
> > Moffett Field, CA 94035 | 7C 80 10 20 25 C7 2F E6|FAX: (650) 604-4377
> > Not an official NASA position; you can't even be certain who sent this!
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> Similar here. On 4.9-STABLE (I'm awaiting ipfilter straightened out).
> The symptoms are:
> o 'mesg n' in .cshrc doesn't cause problem when remotely logged in,
> o starting up with xterm or running script are 'permission denied',
> o vi command 'set nomesg' is 'Operation not permitted'.
> The stem of those problems of mine is recent dropping of setuid bit
> from /usr/X11R6/bin/xterm.
> I tried setting setuid bit on /usr/bin/mesg. It solved the first problem
> but not the second. So, due to the fear of further unforeseen troubles
> (although 'set nomesg' itself doesn't look make much sense),
> I have set setuid back on xterm. Now, it is (they are):
> % ls -aFl /usr/X11R6/bin/xterm*
> lrwxrwxrwx 1 root wheel 27 Aug 30 11:26 /usr/X11R6/bin/xterm@ -> /usr/X11R6/bin/xterm-static
> -rwsr-xr-x 1 root wheel 260792 Aug 29 06:23 /usr/X11R6/bin/xterm-static*
> horio shoichi
> freebsd-stable at freebsd.org mailing list
> To unsubscribe, send any mail to "freebsd-stable-unsubscribe at freebsd.org"
Sorry, but I was very wrong. I fully restarted X and found setuid on xterm
doesn't do any good on script. It keeps pty modes crw-rw-rw- with owner
root:wheel, and still prints 'permission denied'. Script might have been
working this way, but I have lost my memory.
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