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# $FreeBSD$ 28# 29 30# This is a library file, so we only try to do something when sourced. 31case "$0" in 32*/security.functions) exit 0 ;; 33esac 34 35security_daily_compat_var security_status_logdir 36security_daily_compat_var security_status_diff_flags 37 38# 39# Show differences in the output of an audit command 40# 41 42LOG="${security_status_logdir}" 43rc=0 44 45# Usage: COMMAND | check_diff [new_only] LABEL - MSG 46# COMMAND > TMPFILE; check_diff [new_only] LABEL TMPFILE MSG 47# if $1 is new_only, show only the 'new' part of the diff. 48# LABEL is the base name of the ${LOG}/${label}.{today,yesterday} files. 49 50check_diff() { 51 unset IFS 52 rc=0 53 if [ "$1" = "new_only" ]; then 54 shift 55 filter="grep '^[>+][^+]'" 56 else 57 filter="cat" 58 fi 59 label="$1"; shift 60 tmpf="$1"; shift 61 msg="$1"; shift 62 63 if [ "${tmpf}" = "-" ]; then 64 tmpf=`mktemp -t security` 65 cat > ${tmpf} 66 fi 67 68 if [ ! -f ${LOG}/${label}.today ]; then 69 rc=1 70 echo "" 71 echo "No ${LOG}/${label}.today" 72 cp ${tmpf} ${LOG}/${label}.today || rc=3 73 fi 74 75 if ! cmp -s ${LOG}/${label}.today ${tmpf} >/dev/null; then 76 [ $rc -lt 1 ] && rc=1 77 echo "" 78 echo "${msg}" 79 diff ${security_status_diff_flags} ${LOG}/${label}.today \ 80 ${tmpf} | eval "${filter}" 81 mv ${LOG}/${label}.today ${LOG}/${label}.yesterday || rc=3 82 mv ${tmpf} ${LOG}/${label}.today || rc=3 83 fi 84 85 rm -f ${tmpf} 86 exit ${rc} 87} 88