#!/bin/sh
#
# Init file for GSI-OpenSSH server daemon
#
# chkconfig: 2345 55 25
# description: GSI-OpenSSH server daemon
#

### BEGIN INIT INFO
# Provides: sshd
# Required-Start: $network
# Required-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Description: Start the sshd daemon
### END INIT INFO

GLOBUS_LOCATION="@GLOBUS_LOCATION@"
export GLOBUS_LOCATION

. ${GLOBUS_LOCATION}/libexec/globus-script-initializer
. ${libexecdir}/globus-sh-tools.sh

PID_FILE=${localstatedir}/sshd.pid
SSHD=${sbindir}/sshd

#
# SSHD arguments can be added here within the following
# set of double quotes.
#

SSHD_ARGS=""

do_start()
{
    if [ ! -d $localstatedir ]; then
        mkdir -p $localstatedir
    fi
    printf "%s" "Starting up GSI-OpenSSH sshd server... "
    if [ ! -e $SSHD ]; then
        echo "failed"
        echo "$SSHD does not exist."
        exit 1;
    fi
    if [ ! -x $SSHD ]; then
        echo "failed"
        echo "$SSHD is not executable."
        exit 1;
    fi
    $SSHD $SSHD_ARGS > /dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "done."
    else
        echo "failed to start $SSHD!"
    fi
}

do_stop()
{
    printf "%s" "Stopping the GSI-OpenSSH sshd server... "
    pid=`cat $PID_FILE`
    kill -TERM $pid
    sleep 2
    kill -TERM $pid 2> /dev/null
    rm -f $PID_FILE
    echo "done."
}

case "$1" in
    start)
        if [ ! -f $PID_FILE ]; then
            do_start
        else
            pid=`cat $PID_FILE`
            psout=`ps -A | grep $pid | grep -v grep | awk "{if (\\\$1 == $pid) print}"`
            if [ "x$psout" = "x" ]; then
                echo "Found stale sshd pid file... removing it."
                rm -f $PID_FILE
                do_start
            else
                echo "GSI-OpenSSH sshd server is already running!"
            fi
        fi
        ;;

    stop)
        if [ -f $PID_FILE ] ; then
            do_stop
        else
            echo "The server's pid file does not exist!  Are you sure the server is running?"
        fi
        ;;

    restart)
        $0 stop
        $0 start
        ;;

    *)
        echo "Usage: $0 (start|stop|restart)"
        exit 1
esac

exit 0