source: bootscripts-embedded/clfs/rc.d/init.d/sshd@ 8054aa2

#!/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 dropbear 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