#!/bin/sh

#

# kdcrotate     This shell script rotates the list of KDCs in /etc/krb5.conf

#

# Author:       Based on SysV Init in RHS Linux by Damien Neil

#               Written by Nalin Dahyabhai <nalin@redhat.com>

#

# chkconfig:	345 99 01

#

# description:  Rotate the list of KDCs listed in /etc/krb5.conf

#

PATH=/sbin:$PATH

# Only run in runlevels where we're 'enabled', which should only be 345.

if [ "$1" != "start" ] ; then

	exit 0

fi

# source function library

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

action "Rotating KDC list" "awk '	/^[[:space:]]*kdc[[:space:]]*=/ { \\

		if(length(firstkdc) == 0) { \\

			firstkdc = \$0; \\

		} else { \\

			if(length(kdclist) > 0) { \\

				kdclist = kdclist ORS; \\

			} \\

			kdclist = kdclist \$0; \\

		} \\

		next; \\

	} \\

	{ \\

		if(length(kdclist) > 0) { \\

			NEWCONFIG = NEWCONFIG kdclist ORS; \\

		} \\

		if(length(firstkdc) > 0) { \\

			NEWCONFIG = NEWCONFIG firstkdc ORS; \\

		} \\

		firstkdc = \"\"; \\

		kdclist = \"\"; \\

		NEWCONFIG = NEWCONFIG \$0 ORS; \\

	} \\

	END {printf \"%s\", NEWCONFIG > \"/etc/krb5.conf\"}' /etc/krb5.conf"