#! /bin/sh
# This script can be used to start/stop smsd
# as a daemon in Linux, Solaris, Cygwin, FreeBSD
# and MAC OS X Terminal window (Darwin).
# This script is to be used with smsd version >= 3.0.3.
# Last updated: 2011-05-12

# chkconfig: 2345 20 80
# description: Sms server daemon

### BEGIN INIT INFO
# Provides:          smstools
# Required-Start:    $syslog
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts smstools
### END INIT INFO

# Set USER and GROUP, if necessary:
USER=""
GROUP=""

# If an unpriviledged user is selected, make sure that next two
# files are writable by that user:
PIDFILE="/var/run/smsd.pid"
INFOFILE="/var/run/smsd.working"
# Logfile can also be defined in here:
LOGFILE="/var/log/smsd.log"

# Set CONFFILE, if necessary:
CONFFILE=""

DAEMON=/usr/local/bin/smsd
# A program which turns power off for couple of seconds:
RESETMODEMS=/usr/local/bin/smsd_resetmodems
NAME=smsd
PSOPT="-e"
ECHO=echo
case `uname` in
  *BSD|Darwin)
    PSOPT="axc"
    ;;
  SunOS)
    ECHO=/usr/ucb/echo
    ;;
esac

# Maximum time to stop smsd, after that it gets killed hardly:
MAXWAIT=45

case "$1" in
  start)
        test -x $DAEMON || exit 0
        $ECHO -n "Starting SMS Daemon: "
        MSG="."
        ARGS="-n MAINPROCESS -p$PIDFILE -i$INFOFILE"
        [ "x$USER" != x ] && ARGS="$ARGS -u$USER"
        [ "x$GROUP" != x ] && ARGS="$ARGS -g$GROUP"
        [ "x$LOGFILE" != x ] && ARGS="$ARGS -l$LOGFILE"
        [ "x$CONFFILE" != x ] && ARGS="$ARGS -c$CONFFILE"
        PID=`cat $PIDFILE 2>/dev/null`
        if [ "x$PID" != x ]; then
          if kill -0 $PID 2>/dev/null; then
            MSG=" already running ($PID)."
          else
            PID=""
          fi
        fi
        if [ "x$PID" = x ]; then
          if ps $PSOPT | grep "[[:space:]]$NAME\$" >/dev/null; then
            MSG=" already running."
          else
            $DAEMON $ARGS
            sleep 1
            PIDS=`ps $PSOPT | grep "[[:space:]]$NAME\$"`
            [ "x$PIDS" = x ] && MSG=" failed."
          fi
        fi
        echo "$NAME$MSG"
        ;;

  stop)
        if ps $PSOPT | grep "[[:space:]]$NAME\$" >/dev/null; then
          PID=`cat $PIDFILE 2>/dev/null`
          if [ "x$PID" != x ]; then
            P=`kill -0 $PID 2>/dev/null`
            [ "x$P" != x ] && PID=""
          fi
          if [ "x$PID" != x ]; then
            kill $PID
          else
            kill `ps $PSOPT | grep "[[:space:]]$NAME\$" | awk '{print $1}'` >/dev/null 2>&1
          fi
          sleep 1
          if ps $PSOPT | grep "[[:space:]]$NAME\$" >/dev/null; then
            echo "Allowing $NAME to terminate gracefully within $MAXWAIT seconds"
            infofound=0
            dots=0
            seconds=0
            while ps $PSOPT | grep "[[:space:]]$NAME\$" >/dev/null; do
              if [ $infofound -lt 1 ]; then
                if [ -f $INFOFILE ]; then
                  infofound=1
                  if [ $dots -gt 0 ]; then
                    echo ""
                    dots=0
                  fi
                  $ECHO -n "$NAME is currently "
                  cat $INFOFILE
                  echo "Time counting is now disabled and we will wait until this job is complete."
                  echo "If you are very hasty, use \"$0 force-stop\" to kill $NAME hardly (not recommended)."
                fi
              fi
              [ $infofound -lt 1 ] && seconds=`expr $seconds + 1`
              $ECHO -n "."
              dots=`expr $dots + 1`
              if [ "$seconds" -ge $MAXWAIT ]; then
                if [ $dots -gt 0 ]; then
                  echo ""
                  dots=0
                fi
                echo "Timeout occured, killing $NAME hardly."
                kill -9 `ps $PSOPT | grep "[[:space:]]$NAME\$" | awk '{print $1}'` >/dev/null 2>&1
                [ -f $PIDFILE ] && rm $PIDFILE
                seconds=0
              fi
              sleep 1
            done
            [ $dots -gt 0 ] && echo ""
            #echo "$NAME is stopped."
          fi
        fi
        ;;

  restart|reload)
        $0 stop
        $0 start
        ;;

  force-stop)
        if ps $PSOPT | grep "[[:space:]]$NAME\$" >/dev/null; then
          echo "Killing $NAME."
          kill -9 `ps $PSOPT | grep "[[:space:]]$NAME\$" | awk '{print $1}'` >/dev/null 2>&1
        fi
        [ -f $PIDFILE ] && rm $PIDFILE
        ;;

  reset)
        $0 stop
        [ -f "$RESETMODEMS" ] && "$RESETMODEMS"
        sleep 30
        $0 start
        ;;

  *)
        echo "Usage: $0 {start|stop|restart|force-stop|reset}"
        exit 1
esac