7824c761d5
Improve update_dat script with patch from Jason White in followup to PR 26408. . get updates from faster and more reliable http server . dat file format has changed -- version info is now in a different file . abort update if no write permissions in target dir
104 lines
2.5 KiB
Bash
104 lines
2.5 KiB
Bash
#!/bin/sh
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UVSCANDIR="@UVSCANDIR@"
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DAT_SITE="http://download.nai.com/products/datfiles/4.x/nai/"
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DAT_FILES="@DATFILES@"
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TMPDIR="${TMPDIR:-/tmp}/$$"
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AWK="@AWK@"
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BASENAME="@BASENAME@"
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CP="@CP@"
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ECHO="@ECHO@"
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GREP="@GREP@"
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GTAR="@GTAR@"
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MKDIR="@MKDIR@"
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MV="@MV@"
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RM="@RM@"
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SED="@SED@"
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progname=`${BASENAME} $0`
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while getopts vf: arg; do
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case $arg in
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v) verbose=1 ;;
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f) dat_tar="${OPTARG}" ;;
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esac
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done
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(${ECHO} writetest > ${UVSCANDIR}/writetest) >/dev/null 2>&1
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if [ $? != 0 ]; then
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echo ${progname}: no write access to ${UVSCANDIR} -- update aborted.
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exit 1
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else
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${RM} -f ${UVSCANDIR}/writetest
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fi
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${MKDIR} ${TMPDIR}
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if [ -n "$dat_tar" ]; then
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if ! (${GTAR} -x -C ${TMPDIR} -f $dat_tar pkgdesc.ini >/dev/null); then
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${ECHO} "$progname: unable to extract pkgdesc.ini"
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${RM} -rf ${TMPDIR}
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exit 1
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fi
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curver=`${AWK} -F= '/Version/ { print $2; exit }' ${TMPDIR}/pkgdesc.ini | ${SED} -e 's/^.*\([0-9][0-9][0-9][0-9]\).*$/\1/'`
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else
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# Fetch the update.ini file to read the latest version of the DAT files.
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if ! (cd ${TMPDIR}; ftp ${DAT_SITE}update.ini >/dev/null); then
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${ECHO} "$progname: unable to fetch ${DAT_SITE}update.ini"
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${RM} -rf ${TMPDIR}
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exit 1
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fi
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curver=`${AWK} -F= '/DATVersion/ { print $2; exit }' ${TMPDIR}/update.ini | ${SED} -e 's/^.*\([0-9][0-9][0-9][0-9]\).*$/\1/'`
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fi
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if [ -e ${UVSCANDIR}/pkgdesc.ini ]; then
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oldver=`${AWK} -F= '/Version/ { print $2; exit }' ${UVSCANDIR}/pkgdesc.ini | ${SED} -e 's/^.*\([0-9][0-9][0-9][0-9]\).*$/\1/'`
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else
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oldver=0
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fi
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if [ $curver -le $oldver ]; then
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if [ -z "$verbose" ]; then
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${ECHO} "$progname: VirusScan DAT files are current ($oldver)"
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fi
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else
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if [ -z "$dat_tar" ]; then
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dat_tar=${DAT_SITE}dat-$curver.tar
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if (cd ${TMPDIR}; ftp $dat_tar >/dev/null); then
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dat_tar=${TMPDIR}/dat-$curver.tar
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else
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${ECHO} "$progname: unable to fetch $dat_tar"
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${RM} -rf ${TMPDIR}
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exit 1
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fi
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fi
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${GTAR} -x -C ${TMPDIR} -f $dat_tar
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# Backup old dat-* tar files.
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if [ "`${ECHO} ${UVSCANDIR}/*.tar`" != "${UVSCANDIR}/*.tar" ]; then
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for file in ${UVSCANDIR}/*.tar; do
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${MV} -f $file $file.old
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done
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fi
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# Backup old DAT files.
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for file in ${DAT_FILES}; do
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file=${UVSCANDIR}/$file
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if [ -f $file ]; then
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${MV} -f $file $file.bak
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fi
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done
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# Copy new DAT files into place.
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for file in ${DAT_FILES}; do
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${CP} -f ${TMPDIR}/$file ${UVSCANDIR}/$file
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done
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${CP} -f $dat_tar ${UVSCANDIR}
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${RM} -f ${UVSCANDIR}/*.old
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${ECHO} `date` Successfully updated VirusScan DAT files to $curver.
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fi
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${RM} -rf ${TMPDIR}
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exit 0
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