xinetd.in

linux集群服务器软件代码包

#!/bin/sh
#
# Startup/shutdown script for services managed by xinetd.
#
#	Copyright (C) 2003 Charlie Brooks
#
#  WARNING:  tested ONLY on Red Hat 7.3 at this time.
#
# Author:	Charlie Brooks <[e-mail]>
# Description:	given parameters of a service name and start|stop|status,
#		will enable, disable or report on a specified xinetd service
# Config:	all services must have a descriptor file in /etc/xinetd.d
# Support:	Linux-HA mailing list -- http://linux-ha.org/contact/
# License:	GPL
#
#	  OCF parameters are as below:
#		OCF_RESKEY_service

VARRUN=@localstatedir@/run
ETC=@sysconfdir@
XPIDFILE=$VARRUN/xinetd.pid

#######################################################################
# Initialization:

. @hb_libdir@/ocf-shellfuncs

#######################################################################

meta_data() {
	cat <<END
<?xml version="1.0"?>
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
<resource-agent name="Xinetd" version="0.9">
<version>1.0</version>

<longdesc lang="en">
Resource script for Xinetd. It startup/shutdown the services mananged
by xinetd.
</longdesc>
<shortdesc lang="en">Xinetd resource agent</shortdesc>

<parameters>
<parameter name="service" unique="0">
<longdesc lang="en">
The service name managed by xinetd. 
</longdesc>
<shortdesc lang="en">service name</shortdesc>
<content type="string" default="" />
</parameter>
</parameters>

<actions>
<action name="start" timeout="20" />
<action name="stop" timeout="20" />
<action name="restart" timeout="40" />
<action name="status" depth="0" timeout="10" interval="10" start-delay="10" />
<action name="monitor" depth="0" timeout="10" interval="10" start-delay="10" />
<action name="meta-data" timeout="5" />
</actions>
</resource-agent>
END
}

# It's important to note that the absence of a xinetd PID file causes
# this script to assume that xinetd is not yet running, and therefore
# that we are in the initial boot process.  If you port this script to
# a distro that keeps the pid files in some other place, be sure to 
# make an appropriate revision.

hup_inetd () {
    if [ -s $XPIDFILE ]; then
      if ! kill -HUP `cat $XPIDFILE`; then
          ocf_log "err" "Could not SigHUP xinetd superdaemon!"
          ocf_log "perhaps we are booting after a system crash"
          exit 2
      fi
    else
       ocf_log "info" "xinetd superdaemon PID file $XPIDFILE not found!"
       ocf_log "perhaps we are currently booting the system."
fi
}

xup_start () {
  ocf_log "info" "$0: enabling in $RCFILE"
  if gawk '!/disable/' $RCFILE > $RCFILE.xup
    then
      if mv $RCFILE.xup $RCFILE
        then
          ocf_log "info" "$0: Starting"
          hup_inetd
          touch $PIDFILE
        else
          ocf_log "err" "Could not replace $RCFILE"
      fi
    else
      ocf_log "err" "Could not rewrite $RCFILE!"
  fi
}

xup_stop () {
  ocf_log "info" "$0: disabling in $RCFILE"
  if gawk '!/disable/;/{/{printf "\tdisable\t\t\t= yes\n"}' $RCFILE >$RCFILE.xup
    then
      if mv $RCFILE.xup $RCFILE
        then
          ocf_log "info" "$0: Shutting down"
          hup_inetd 
          rm -f $PIDFILE
        else
          ocf_log "err" "Could not replace $RCFILE"
      fi
    else
      ocf_log "err" "Could not rewrite $RCFILE!"
  fi
}

xup_usage () {
        echo "Usage: $0 {start|stop|restart|status|monitor|meta-data}"
	return 0
}

xup_status () {
  	if [ -f $PIDFILE ]; then
		echo running
	else
		echo stopped
	fi
	return 0
}

if
  ( [ $# -eq 0 ] || [ $# -gt 1 ] )
then
  xup_usage
  exit 1
fi

if 
  [ -z "$OCF_RESKEY_service" ]
then
  xup_usage
  exit 1
fi

service=$OCF_RESKEY_service
RCFILE=$ETC/xinetd.d/$service
PIDFILE=$VARRUN/xup$service

# Make sure the OCF_RESKEY_service is a valid xinetd service name
if ! [ -f $RCFILE ]; then
    ocf_log "err" "Service descriptor /etc/xinetd.d/$service not found!"
    xup_usage
    exit 1
fi

# See how we were called.
case "$1" in
  meta-data)
	meta_data
	exit $OCF_SUCCESS
	;;
  start)
	xup_start
	;;
  stop)
	xup_stop
	;;
  restart)
	$0 stop
	$0 start
	;;
  status|monitor)
	xup_status
	;;
  usage)
	xup_usage
	exit $OCF_SUCCESS
	;;
  *)
	xup_usage
	exit $OCF_ERR_UNIMPLEMENTED
esac

exit $?