source: clfs-embedded/bootscripts/clfs/rc.d/init.d/sshd@ a0038b3

#!/bin/ash
#
# DropBear SSH

. /etc/rc.d/init.d/functions

DSSKEY=/etc/dropbear/dropbear_dss_host_key
RSAKEY=/etc/dropbear/dropbear_rsa_host_key
PIDFILE=/var/run/dropbear.pid

case "$1" in
start)
        if [ ! -r "$DSSKEY" ]; then
                echo -n "Generating DSS host key: "
                dropbearkey -t dss -f "$DSSKEY" >/dev/null 2>&1
                check_status
        fi
        if [ ! -r "$RSAKEY" ]; then
                echo -n "Generating RSA host key: "
                dropbearkey -t rsa -f "$RSAKEY" >/dev/null 2>&1
                check_status
        fi
        if [ -r "$PIDFILE" ]; then
                echo "Service dropbear already running."
        else
                echo -n "Starting SSH server: "
                dropbear
                check_status
        fi
        ;;
stop)
        if [ -r "$PIDFILE" ]; then
                echo -n "Stopping dropbear SSH server: "
                kill `cat "$PIDFILE"`
                check_status
        else
                echo "Service dropbear not running."
        fi
        ;;
restart)
        $0 stop
        $0 start
        ;;
status)
        if [ -r "$PIDFILE" ]; then
                echo "Service dropbear running (PID $(cat "$PIDFILE"))."
        else
                echo "Service dropbear not running."
        fi
        ;;
*)
        echo "Usage: $0 {start|stop|restart|status}"
        exit 1
esac