1#!/bin/sh 2# 3# Copyright (c) 2001 The FreeBSD Project 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD: src/etc/periodic/security/security.functions,v 1.1.2.2 2002/11/19 19:00:39 thomas Exp $ 28# 29 30# 31# Show differences in the output of an audit command 32# 33 34LOG="${daily_status_security_logdir}" 35rc=0 36 37# Usage: COMMAND | check_diff [new_only] LABEL - MSG 38# COMMAND > TMPFILE; check_diff [new_only] LABEL TMPFILE MSG 39# if $1 is new_only, show only the 'new' part of the diff. 40# LABEL is the base name of the ${LOG}/${label}.{today,yesterday} files. 41 42check_diff() { 43 rc=0 44 if [ "$1" = "new_only" ]; then 45 shift 46 filter="grep '^>'" 47 else 48 filter="cat" 49 fi 50 label="$1"; shift 51 tmpf="$1"; shift 52 msg="$1"; shift 53 54 if [ "${tmpf}" = "-" ]; then 55 tmpf=`mktemp ${TMPDIR:-/tmp}/security.XXXXXXXXXX` 56 cat > ${tmpf} 57 fi 58 59 if [ ! -f ${LOG}/${label}.today ]; then 60 rc=1 61 echo "" 62 echo "No ${LOG}/${label}.today" 63 cp ${tmpf} ${LOG}/${label}.today || rc=3 64 fi 65 66 if ! cmp -s ${LOG}/${label}.today ${tmpf} >/dev/null; then 67 [ $rc -lt 1 ] && rc=1 68 echo "" 69 echo "${msg}" 70 diff -b ${LOG}/${label}.today ${tmpf} | eval "${filter}" 71 mv ${LOG}/${label}.today ${LOG}/${label}.yesterday || rc=3 72 mv ${tmpf} ${LOG}/${label}.today || rc=3 73 fi 74 75 rm -f ${tmpf} 76 exit ${rc} 77} 78