#!/bin/bash
# --------------------------------
# /etc/init.d/x11vnc
# --------------------------------

if [ -f /etc/x11vnc/x11vnc.conf ]
then
  . /etc/x11vnc/x11vnc.conf
fi

# find xauthority file
find_xauth () {
  FOUND=0
  RETRIES=4
  [ -z "$1" ] || RETRIES="$1"

  [ -e "/var/lib/kdm/" ] && 
     XAUTHFILE_KDM=`find /var/lib/kdm/ -iname "A\:0-*"`
  [ -e "/var/run/xauth/" ] && 
     XAUTHFILE_KDM2=`find /var/run/xauth/ -iname "A\:0-*"`
  [ -e "/var/lib/xdm/authdir/authfiles/" ] && 
     XAUTHFILE_XDM=`find /var/lib/xdm/authdir/authfiles/ -iname "A\:0-*"`
  [ -e "/var/lib/gdm/" ] && 
     XAUTHFILE_GDM=`find /var/lib/gdm/ -iname *Xauth*`
  
  [ -f "$XAUTHFILE_KDM" ]  && FOUND=1 && XAUTHORITY="$XAUTHFILE_KDM"
  [ -f "$XAUTHFILE_KDM2" ] && FOUND=1 && XAUTHORITY="$XAUTHFILE_KDM2"
  [ -f "$XAUTHFILE_XDM" ]  && FOUND=1 && XAUTHORITY="$XAUTHFILE_XDM"
  [ -f "$XAUTHFILE_GDM" ]  && FOUND=1 && XAUTHORITY="$XAUTHFILE_GDM"

  if [ "$FOUND" -eq "0" ]; then
    if [ "$RETRIES" -gt "0" ]; then
      let "RETRIES-=1"
      find_xauth "$RETRIES"
    else
      echo "start FAILED (can't find way to authenticate myself against X)" >>/var/log/x11vnc.debug
      exit -1
    fi
  else
    echo "found authfile ($XAUTHORITY)" >>/var/log/x11vnc.debug
  fi
}

START_COMMAND="x11vnc"

case "$1" in
  start)

    if [ ! -f /etc/x11vnc/passwd ]; then
      echo " start FAILED (/etc/x11vnc/passwd not found)" >>/var/log/x11vnc.debug
      echo "   Create it manualy and retry starting x11vnc" >>/var/log/x11vnc.debug
      exit -1;
    fi

    #su -c "$COMMAND" -l x11vnc &
    if [ $X11VNC_X11 = 1 ]; then
      find_xauth
      START_COMMAND="$START_COMMAND -auth $XAUTHORITY $X11VNC_PARAMS"
    else
      START_COMMAND="$START_COMMAND $X11VNC_PARAMS"
    fi
    OUTPUT=`$START_COMMAND`
    echo "$START_COMMAND" >>/var/log/x11vnc.debug
    echo "$OUTPUT" >>/var/log/x11vnc.debug
  ;;
  stop)
    pid=`pidof x11vnc`
    if [ -z "$pid" ]
    then
     echo "x11vnc not running" >>/var/log/x11vnc.debug
     exit -1;
    else
     kill -9 $pid
    echo "x11vnc stopped" >>/var/log/x11vnc.debug
    fi
  
  ;;
  *)
    echo "x11vnc startscript"
    echo "Usage: $0 (start|stop)" 
  ;;
esac
exit 0