On Tue, Jul 11, 2000 at 04:10:05PM +0300, Theodor Milkov wrote:
> Hello,
>
> I'm running qmail for a long time without any problems.
> Now I should run qbiff for a couple of users, but
> without success. Diging in the source I found this:
>
> if (!(st.st_mode & 0100)){
> close (fdtty);
> continue;
> }
>
> I'm not a C programmer, so please tell me what this
> means ? As far as I can read it, in st.st_mode is
> stored mode of respective tty line. In my case this
Correct. It's the obscurity of how certain commands,
such as biff and mesg set/define access for other commands
like qbiff, write, talk etc which want to write to your
tty.
You may want to look at the man pages for mesg to help
understand what's going on, but essentially dmesg/biff
set the mode bits and use group tty access to determine
whether or not qbiff/write/talk can or should write something
to your tty.
> is /dev/ttyp0 wich mode is 20620. (20620 & 0100) is
> 0, so fdtty gets closed and qbiff doesn't send notify.
> Is this mean, that in order to receive notifications
> about incoming mails I must set all my tty's in
> mode 700 ? Why ?
I would think 0100 or '+x'.
Regards.
