#! /bin/sh
# my_lessopen (Bourne shell script) -- processes a file as root and then echoes the name

# This won't work, because this script doesn't run as root
## if [ ! -e "$@" ] ; then
##   echo sless: "$@" does not exist >&2
##   exit 2
## fi

if [ -r "$@" ] ; then
  echo "sless: you don't need root access to view \"$@\"" >&2
  exit 3
fi

# Try to process the file as root in case it need special processing
if [ -n "$LESSOPEN_PROG" ] ; then
  set -e
  fn=`sudo $LESSOPEN_PROG "$@"`
  set +e
fi
if [ -z "$fn" ] ; then
  # if lessfile doesn't output a file name then no special processing is required
  # (i.e. less would normally open the file directly), so this script needs to
  # copy the file and tell less to open the copy
  fn=/tmp/my_lessopen$$
  set -e
  sudo cp -p "$@" $fn
  set +e
  sudo chmod go-rwx $fn
fi
sudo chown $LOGNAME $fn
# tell less which file to open
echo $fn