On Wed, Mar 02, 2016 at 08:35:54PM +0100, Stanislav Brabec wrote:
> Another possible fixes would be:
> - Or create custom pty container (like script does).
note that for pty container you have to call setsid() otherwise in
session running shell has to control the terminal.
...
> To prevent unwanted reading from a terminal, one would:
> - Or create custom pty container (like script does).
I'd like to cleanup all su(1) code, use signalfd and then add new
features (for v2.30), because the current code is horrible from my
point of view.
Anyway, I have tried to implement experimental --pty option to the
current code. See su-pty branch on github. (It's very raw...).
The problem is again (like script(1)) non-terminal stdin
and pty session mix
echo AxA | su - kzak --pty -c "sed 's/x/A/'"
this use-case is disabled for now.
# tty
/dev/pts/0
# runuser -u kzak tty
/dev/pts/0
# runuser -u kzak --pty tty
/dev/pts/4
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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