FreeBSD-5.3/etc/periodic/security/800.loginfail

#!/bin/sh -
#
# Copyright (c) 2001  The FreeBSD Project
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
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# $FreeBSD: src/etc/periodic/security/800.loginfail,v 1.5 2003/01/05 21:32:50 se Exp $
#

# Show login failures
#

# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
    . /etc/defaults/periodic.conf
    source_periodic_confs
fi

LOG="${daily_status_security_logdir}"

yesterday=`date -v-1d "+%b %e "`

catmsgs() {
	find ${LOG} -name 'auth.log.*' -mtime -2 |
	    sort -t. -r -n -k 2,2 |
	    while read f
	    do
		case $f in
		    *.gz)	zcat -f $f;;
		    *.bz2)	bzcat -f $f;;
		esac
	    done
	[ -f ${LOG}/auth.log ] && cat $LOG/auth.log
}

case "$daily_status_security_loginfail_enable" in
    [Yy][Ee][Ss])
	echo ""
	echo "${host} login failures:"
	n=$(catmsgs | grep -ia "^$yesterday.*fail" |
	    tee /dev/stderr | wc -l)
	[ $n -gt 0 ] && rc=1 || rc=0;;
    *)	rc=0;;
esac

exit $rc