level=$1
#
# Construct basename for dump records
FS=`echo $2 | sed -e '1,$s?/?:?g'`
echo Dump root = $2   Level = $level
echo -n Finding files to dump...

DUMPFILES=/tmp/backup$$
#Remove any existing DUMPFILES to avoid possible security exploits
if [ -e  ${DUMPFILES} ]; then /bin/rm -f ${DUMPFILES}; fi
#for cleanup
trap "rm -f ${DUMPFILES}; exit 1" 1 2 3 4 5 7 9 10 12 15

date +"%b %d %H:%M" > /usr/adm/dump/newdump$$
#
# If it is a level 0 dump simply dump everything...
if [ $level = 0 ]
then
find $2 | grep -v -f /usr/adm/dump/DONTDUMP > ${DUMPFILES}
echo done
cat ${DUMPFILES} | afio -o -v -f -b 1024 -s 1440x -F -Z /dev/fd0H1440
else
#
# Otherwise dump only stuff newer...
#
# Get the date of the most recent dump with the highest level <= $level]
prevdump=`ls --reverse /usr/adm/dump/${FS}.[0-${level}] | head --lines=1`
if [ "x${prevdump}" = x ]
then
echo failed
echo backup: No lower level dump - cannot do level $level dump
exit 1
fi
find $2 -cnewer ${prevdump} | grep -v -f /usr/adm/dump/DONTDUMP > ${DUMPFILES}
echo done
fi
cat ${DUMPFILES} | afio -o -v -f -b 1024 -s 1440x -F -Z /dev/fd0H1440
/bin/rm -f ${DUMPFILES}
#
# All higher level dumps are now invalidated
/bin/rm -f /usr/adm/dump/${FS}.[${level}-9]
#
# Record date of dump future reference
mv /usr/adm/dump/newdump$$ /usr/adm/dump/${FS}.${level}