[PATCH] Allow per-user setup script be run by login

[Denis Vlasenko]

On Saturday 08 July 2006 22:04, Denis Vlasenko wrote:
> Hi people,
> 
> I'm using busybox login. When I log in as non-root,
> I can use /dev/ttyNN device I am logged on (of course),
> but cannot use /dev/vcs[a]NN devices which hold screen
> buffer data. I need to be able to do it.
> util-linux's login chown+chmod's those devices for me.
> 
> Is there any solution for busybox login?

Okay, maybe this patch will be deemed insufficiently ugly
to reject. (/me crosses fingers...)

With this patch I can point LOGIN_PRE_SUID_SCRIPT to
the script like this:

#!/bin/sh
ttyname=`ttyname`
ttybase=`echo "$ttyname" | sed 's/[0-9]*$//'`
ttytail=${ttyname:${#ttybase}}
if test "$ttybase" = "/dev/tty"; then
    chown "$LOGIN_USER": "/dev/vcs$ttytail" "/dev/vcsa$ttytail"
    chmod 0600 "/dev/vcs$ttytail" "/dev/vcsa$ttytail"
fi

This will achieve what I want, and is generic enough
when compared to adding /dev/vcs[a] support into the login itself.
--
vda
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