#!/bin/sh

# rc.nss-tlsd - by B. Watson (urchlay@slackware.uk). Part of the
# SlackBuilds.org nss-tlsd package. WTFPL licensed.

DAEMON=/usr/sbin/nss-tlsd
PIDFILE=/run/nss-tlsd.pid

[ -f /etc/default/nss-tlsd ] && . /etc/default/nss-tlsd

# we try to make sure not only that the PID file exists, but that the
# PID is actually that of a running nss-tlsd process. the 'cut' stuff
# is in case the package was upgraded, which results in /proc/<pid>/exe
# pointing to "/usr/sbin/nss-tlsd (deleted)".
daemon_is_running() {
  [ -e "$PIDFILE" ] || return 1
  [ "$( readlink /proc/$( cat $PIDFILE )/exe 2>/dev/null | cut -d' ' -f1 )" = "$DAEMON" ] || return 1
  return 0
}

start_daemon() {
  if daemon_is_running; then
    echo "$DAEMON is already running, PID $( cat $PIDFILE )"
  else
    echo "Starting $DAEMON"
    nohup $DAEMON $NSS_TLSD_OPTS >/dev/null 2>&1 &
    echo "${!}" > $PIDFILE
  fi
}

stop_daemon() {
  if daemon_is_running; then
    echo "Stopping $DAEMON"
    kill "$( cat $PIDFILE )"
    sleep 1
    kill -9 "$( cat $PIDFILE )" >/dev/null 2>&1
	 rm -f $PIDFILE
  else
    echo "$DAEMON not running"
  fi
}

# most rc scripts don't need this: daemons will fail to start as non-root.
# this one is designed to work either way.
if [ "$(id -u)" != "0" ]; then
  echo "$0: must run as root."
  exit 1
fi

case "$1" in
  start|"") start_daemon ;;
  stop) stop_daemon ;;
  restart) stop_daemon; sleep 1; start_daemon ;;
  *) echo "Usage: $0 start|stop|restart" ;;
esac