#!/bin/sh
# /etc/init.d/nbd-server
#   and its symbolic link
# /usr)sbin/rcnbd-server
#
# Template system startup script for some example service/daemon FOO
#
# LSB compatible service control script; see http://www.linuxbase.org/spec/
# 
### BEGIN INIT INFO
# Provides:          nbd-server
# Required-Start:    $syslog $remote_fs
# Should-Start: $time ypbind sendmail
# Required-Stop:     $syslog $remote_fs
# Should-Stop: $time ypbind sendmail
# Default-Start:     3 5
# Default-Stop:      0 1 2 6
# Short-Description: nbd server
# Description:       Start nbd server
### END INIT INFO
# 

# Check for missing binaries (stale symlinks should not happen)
# Note: Special treatment of stop for LSB conformance
NBD_BIN=/usr/bin/nbd-server
test -x $NBD_BIN || { echo "$NBD_BIN not installed"; 
	if [ "$1" = "stop" ]; then exit 0;
	else exit 5; fi; }

# Check for existence of needed config file and read it
NBD_CONFIG=/etc/nbd-server.conf
NBD29_CONFIG=/etc/nbd-server/config
test -r $NBD_CONFIG && { 
	echo "$NBD_CONFIG: Using old style config file unsupported";
}
test -r $NBD29_CONFIG || {
	echo "No config file $NBD29_CONFIG existing";
	if [ "$1" = "stop" ]; then 
		exit 0;
	else
		exit 6; 
	fi;
}

# Shell functions sourced from /etc/rc.status:
. /etc/rc.status

# Reset status of this service
rc_reset

case "$1" in
    start)
	echo -n "Starting nbd-server "
	## Start daemon with startproc(8). If this fails
	## the return value is set appropriately by startproc.
	startproc $NBD_BIN
	rc_status -v
	;;
    stop)
	echo -n "Shutting down nbd-server "
	## Stop daemon with killproc(8) and if this fails
	## killproc sets the return value according to LSB.
	#killall ${NBD_BIN##*/}
	$0 status >/dev/null 2>&1
	stat=$?
	if test $stat = 3; then echo -n " (not running) "; 
	elif test $stat != 0; then echo -n " (dead) "; fi
	killproc $NBD_BIN
	# TODO: Only kill nbd-server processes started by config file.

	# Remember status and be verbose
	rc_status -v
	;;
    try-restart|condrestart)
	## Do a restart only if the service was active before.
	## Note: try-restart is now part of LSB (as of 1.9).
	## RH has a similar command named condrestart.
	if test "$1" = "condrestart"; then
		echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
	fi
	$0 status >/dev/null 2>&1
	if test $? = 0; then
		$0 restart
	else
		rc_reset	# Not running is not a failure.
	fi
	# Remember status and be quiet
	rc_status
	;;
    restart)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

	# Remember status and be quiet
	rc_status
	;;
    force-reload)
	## Signal the daemon to reload its config. Most daemons
	## do this on signal 1 (SIGHUP).
	## If it does not support it, restart the service if it
	## is running.

	echo -n "Reload service nbd-server "
	## if it supports it:
	#/sbin/killproc -HUP $NBD_BIN
	#touch /var/run/nbd-server.pid
	#rc_status -v

	## Otherwise:
	$0 try-restart
	rc_status
	;;
    reload)
	## Like force-reload, but if daemon does not support
	## signaling, do nothing (!)
	#$0 force-reload
	#rc_status
	
	## Otherwise if it does not support reload:
	echo -n "Reload service nbd-server "
	rc_failed 3
	rc_status -v
	;;
    status)
	echo -n "Checking for service nbd-server "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.
	checkproc $NBD_BIN
	
	# NOTE: rc_status knows that we called this init script with
	# "status" option and adapts its messages accordingly.
	rc_status -v
	;;
    probe)
	## Optional: Probe for the necessity of a reload, print out the
	## argument to this init script which is required for a reload.
	## Note: probe is not (yet) part of LSB (as of 1.9)

	test $NBD29_CONFIG -nt /var/run/nbd-server.pid && echo restart
	#rc_failed 3
	;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
	exit 1
	;;
esac
rc_exit