#!/usr/bin/env bash
#
# track log 0.5
###
# Copyright (C) 2002-2008, R-fx Networks <proj@r-fx.org>
# Copyright (C) 2008, Ryan MacDonald <ryan@r-fx.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation version 2 of the License
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
###
#
# Just a global PATH so we can find common binaries
PATH=/sbin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin:$PATH ; export PATH
# Base run path; no trailing slash
BASERUN="/usr/local/maldetect/tmp"
if [ "$1" == "" ] && [ "$2" == "" ]; then
echo "$0 usage: [file] [tlog]"
echo "file : path to file for tracking"
echo "tlog : data file name to store tracked sized"
exit 1
else
FILE="$1"
TLOG="$2"
fi
if [ ! -f "$FILE" ]; then
# echo "$FILE is not a valid file, aborting"
exit 1
elif [ ! -d "$BASERUN" ]; then
# echo "$BASERUN is not a valid operating path, aborting."
exit 1
fi
if [ ! -f "$BASERUN/$TLOG" ]; then
echo "0" > $BASERUN/$TLOG
fi
TSIZE=`cat $BASERUN/$TLOG` >> /dev/null 2>&1
getsize() {
if [ ! -f "$BASERUN/$TLOG" ]; then
SIZE=`stat -c %s $FILE`
echo $SIZE > $BASERUN/$TLOG
NEWSIZE=`stat -c %s $FILE`
elif [ -f "$BASERUN/$TLOG" ] && [ "$TSIZE" == "0" ]; then
SIZE=`stat -c %s $FILE`
echo $SIZE > $BASERUN/$TLOG
NEWSIZE=`stat -c %s $FILE`
SIZE=0
else
SIZE=`cat $BASERUN/$TLOG`
NEWSIZE=`stat -c %s $FILE`
fi
}
getsize
if [ ! "$NEWSIZE" -lt "$SIZE" ] && [ "$NEWSIZE" -ne "$SIZE" ]; then
tail -c `expr $NEWSIZE - $SIZE` $FILE
echo $NEWSIZE > $BASERUN/$TLOG
elif [ "$NEWSIZE" -lt "$SIZE" ]; then
if [ -f "$FILE.1" ]; then
RTSIZE=`stat -c %s $FILE.1`
tail -c `expr $RTSIZE - $SIZE` $FILE.1
elif [ -f "$FILE.1.gz" ]; then
gunzip $FILE.1.gz
RTSIZE=`stat -c %s $FILE.1`
tail -c `expr $RTSIZE - $SIZE` $FILE.1
gzip $FILE.1
fi
SIZE=0
echo "$NEWSIZE" > $BASERUN/$TLOG
tail -c `expr $NEWSIZE - $SIZE` $FILE
echo $NEWSIZE > $BASERUN/$TLOG
fi
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