#!/bin/sh# This program is intended to help keep the XORP modified version of# OSPFD in sync with the ftp site and patches.  We keep track of the# applied patches in the file imaginatively titled "applied.patches".# Any patches that have not been applied, the user is queried about.# If they respond positively, the patch is applied.PATCHDIR=`echo $0 | sed 's@/[^/]*$@@'`OSPFDIR=${PATCHDIR}/..# File containing list of applied patchesAPPLIED=${PATCHDIR}/applied.patchestrap exit SIGINTquery_then_do_patch( ) {    printf "Apply patch $1 (y/n)? "    read OKAY    if [ "X${OKAY}" != "Xy" -a "X${OKAY}" != "Y" ] ; then	return 1    fi    # OSPFD code appears to come from version labelled directories    # rather than a versioning system.  Change directory path to be    # xorp ospf directory    FILT="s@+++ ospfd2[^/]*/@+++ ${OSPFDIR}/@"    cat $i | sed "${FILT}" | patch    return 0}for i in ${PATCHDIR}/patch2.[0-9] ${PATCHDIR}/patch2.[0-9][0-9]  ; do  grep $i ${APPLIED} >/dev/null 2>&1  if [ $? != 0 ] ; then    query_then_do_patch $i    if [ $? = 0 ] ; then      echo $i >> ${APPLIED}    fi  else      echo "Patch $i already applied."  fidone