#!/bin/sh
##########################################################################
# 
#   This script is intended to be used as an example of how to start a
# remote willow client on the UW's willow.u hosts and feed it a custom 
# configuration file.  Feel free to modify this script to work on your
# system.
#
##########################################################################

# initialize some variables
confile="/dev/null"
progname=`basename $0`
cmdname="willow"         # the default remote command to start willow
xhostvar=                # used by auth type xhost-xterminal

if [ -z "$DISPLAY" ]; then
    echo "$progname: "'$DISPLAY must be set' 1>&2 ;
    exit 1
fi

# if the display name starts with a :, then we are the console of a
# unix host and we need to pre-pend the hostname to the DISPLAY setting
case $DISPLAY in
  :*) DISPLAY=`hostname`$DISPLAY; #echo "display is $DISPLAY";
      ;;
  *) ;;
esac

if [ $# -gt 1 ]; then
  # process command line arguments
  until [ "$foundarg" = "no" ]
  do
    foundarg=no
    case $1 in
        '') ;;
	-cf) # if there is a config file specified, keep its name and 
             # set the default remote willow command to be one that expects
             # a config file to be fed to it on standard in.
             shift; confile="$1"; foundarg=yes; cmdname="willowcf";
             shift;;  
         *) echo "willow: unknown command line arg: $1 (giving up)" ; exit 1 ;;
    esac
  done
fi


# Some System V hosts have rsh as "restricted shell" and ucb rsh is remsh
if [ -r /usr/bin/remsh ]; then
    rsh=remsh
elif [ -f /usr/bin/rcmd ]; then       # SCO Unix uses "rcmd" instead of rsh
    rsh=rcmd
else
    rsh=rsh
fi

# allow the willow.u host to connect to my display
# we consider this to be safe becuase there are no users on the 
# willow servers.
/usr/bin/X11/xhost + willow.u.washington.edu > /dev/null

# run the remote willow command and feed it any config file
# data that was specified.  If no config file, just run the 
# standard willow command with /dev/null as input.

exec cat $confile | $rsh willow.u.washington.edu -l $cmdname $DISPLAY