#!/bin/sh
# kiosk-dm --- this is the display manager used on my kiosk machines.
# it simply invokes xinit and "kiosk-session".
# created by jwz, 21-May-2000

# whether to do GPM tricks...
use_gpm=true
force=false

while [ $# -gt 0 ]; do
  case $1 in
   --gpm)    use_gpm=true  ;;
   --no-gpm) use_gpm=false ;;
   --force)  force=true    ;;
   *)
     echo "usage: $0 --gpm --no-gpm --force" >&2
     exit 1
     ;;
  esac
  shift
done

if [ "$1" = "-force" ]; then
  force=true
fi


PATH=/bin:/usr/bin:/usr/X11R6/bin

# don't let any single process allocate (sbrk) more than 64M.
# (that is half of the available memory in these machines.)
# (note that this requires bash 2.04 or better: ulimit is
# broken in bash 1.14.)
# 
ulimit -v 65536

cd /
/usr/local/sbin/kiosk-home-init


# print some useful stats to the console while waiting for X to start...
#
/usr/bin/top -bn1   | head -9
/sbin/ifconfig eth0 | head -2

# Check to see if this machine has Cyrix video; if so, tell X to use a
# different layout from our XF86Config-4 file.
#
if ( /sbin/lspci | grep Cyrix >/dev/null ) ; then
  xlayout="Cyrix"
elif ( /sbin/lspci | grep 'S3 Inc' >/dev/null ) ; then
  xlayout="Savage"
elif ( /sbin/lspci | grep 'Trident' >/dev/null ) ; then
  xlayout="Trident"
elif ( /sbin/lspci | grep 'VGA.*VIA Tech' >/dev/null ) ; then
  xlayout="VIA_UniChrome"
else
  xlayout="SiS"
fi


# Maybe use GPM to map all mouse buttons to button1.
# (XF86Config-4 must read mouse events from /dev/gpmdata for this to work)
#
killall gpm >/dev/null 2>&1
if [ "$use_gpm" = true ]; then
  xlayout="${xlayout}_GPM"

  sleep 2
  killall -9 gpm >/dev/null 2>&1
  rm -f /var/run/gpm.pid >/dev/null 2>&1
  sleep 1

 /usr/local/sbin/gpm -m /dev/mouse -t imps2 -R msc -B 111 &
# /usr/local/sbin/gpm -m /dev/mouse -t ps2 -R msc -B 111 &
# /usr/sbin/gpm -t ps2 -R msc &
  sleep 1

fi

# if /etc/nox exists, don't run X.  instead, wait for it to vanish.
# unless "-force" was on the command line.
if [ "$force" != true ]; then
  while [ -f /rw/etc/nox ]; do
    sleep 60
  done
fi

exec xinit /usr/local/sbin/kiosk-session -- -layout $xlayout \
  >/tmp/.xsession-errors 2>&1