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