#!/bin/sh
##
## Start or stop the SSHD daemon
##
## Set custom options  in OPTIONS
## default configuration

#IRIX / SGUG Paths needed
IS_ON=/etc/chkconfig
SSHD=/usr/sgug/sbin/sshd
CONFIG=/usr/sgug/etc/ssh
SERVICE=sgug_sshd
AUTOCREATE_SERVER_KEYS=YES #Make keys automatically 
OPTIONS="" #Startup options here
KEYGEN=/usr/sgug/bin/ssh-keygen
RSA_KEY=$CONFIG/ssh_host_rsa_key
ECSDA_KEY=$CONFIG/ssh_host_ecdsa_key
ED25519_KEY=$CONFIG/ssh_host_ed25519_key
#We must have the correct PID_FILE so get it from the config
PID_FILE=`grep PidFile $CONFIG/sshd_config | sed -e 's/^#//' | awk '{print $2}'`
if [ -f $PID_FILE ]; then
        PID=`cat $PID_FILE`
fi

if $IS_ON verbose; then
    ECHO=echo
else
    ECHO=:
fi

#User choice? This was to allow original sgi sshd and neko_sshd 
#Now changed to $SERVICE and neko_sshd but probably should just removed
if $IS_ON neko_sshd && $IS_ON $SERVICE && ! $IS_ON neko_sshd.force-start; then
    echo "Warning: both neko_sshd and $SERVICE are enabled; disabling neko_sshd." 1>&2
    echo "    To start multiple servers verify that there will be no port" 1>&2
    echo "    contention and do 'chkconfig -f neko_sshd.force-start on'" 1>&2
    echo "    before re-enabling neko_sshd." 1>&2
    $IS_ON neko_sshd off
fi

do_keygen() {
	if [ ! -f $RSA_KEY ]; then
		echo -n $"Generating SSH2 RSA host key: "
		$KEYGEN -t rsa -b 4096 -f $RSA_KEY -N "" < /dev/null
		chmod 600 $RSA_KEY
                chmod 644 $RSA_KEY.pub
	fi
	if [ ! -f $ECSDA_KEY ]; then
		echo -n $"Generating SSH2 ECSDA host key: "
		$KEYGEN -t ecdsa -b 521 -f $ECSDA_KEY -N "" < /dev/null
		chmod 600 $ECSDA_KEY
                chmod 644 $ECSDA_KEY.pub
	fi
	if [ ! -f $ED25519_KEY ]; then
		echo -n $"Generating SSH2 ED25519 host key: "
		$KEYGEN -t ed25519 -f $ED25519_KEY -N "" < /dev/null
		chmod 600 $ED25519_KEY
                chmod 644 $ED25519_KEY.pub
	fi
}


case "$1" in
    start)
	if $IS_ON $SERVICE && test -x $SSHD; then
		if [ "x${AUTOCREATE_SERVER_KEYS}" != xNO ]; then
			do_keygen
		fi
		echo -n $"Starting $SERVICE: "
		$SSHD $OPTIONS
	fi
	;;

    reload)
        echo -n $"Reloading $SERVICE: "
	#TEST FOR PID?
        kill -HUP $PID
        echo
	;;

    restart)
	if $IS_ON $SERVICE && test -x $SSHD; then
		echo -n $"Stoping $SERVICE: "
		kill -TERM $PID
		echo -n $"Starting $SERVICE: "
		$SSHD $OPTIONS
	fi
	;;

    stop)
	if $IS_ON sgug_sshd; then
	    /sbin/killall -TERM sshd
	fi
	;;

    *)
	echo "usage: $0 {start|stop|reload|restart}"
	;;
esac