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