#!/bin/sh
#
# Propagate if database (principal.db) has been modified since last dump
# (dumpfile.dump_ok) or if database has been dumped since last successful
# propagation (dumpfile.<slave machine>.last_prop)

KDB_DIR=/usr/local/var/krb5kdc

KDB_FILE=$KDB_DIR/principal.db
DUMPFILE=$KDB_DIR/slave_datatrans
KDB5_UTIL=/usr/local/sbin/kdb5_util
KPROP=/usr/local/sbin/kprop

SLAVE=$1
if [ -z "${SLAVE}" ]
then 
  echo "Usage $0 slave_server"
fi

if [ "`ls -t $DUMPFILE.dump_ok $KDB_FILE | sed -n 1p`"  = "$KDB_FILE" -o \
     "`ls -t $DUMPFILE.${SLAVE}.last_prop $DUMPFILE.dump_ok | \
		sed -n 1p`"  = "$DUMPFILE.dump_ok" ]
then

	date
	$KDB5_UTIL dump $DUMPFILE > /dev/null

	$KPROP -d -f $DUMPFILE ${SLAVE}
	rm $DUMPFILE
fi