bkprc=0
+hash_file () {
+ file=$1
+
+ case $HASH in
+ md5 | sha1 | sha224 | sha256 | sha384 | sha512)
+ set -- $(${HASH}sum <"$file")
+ echo "$1"
+ ;;
+ *)
+ set -- $(openssl dgst -$HASH <"$file")
+ echo "$2"
+ ;;
+ esac
+}
+
remote_fshash () {
_hostrun $userat$host "
umask 077
## Maybe we need to retry the backup.
while :; do
+ ## Rig checksum variables to mismatch unless they're set later.
+ hrfs=REMOTE hlfs=LOCAL
+
## Create and mount the remote snapshot.
case $dryrun in
t)
run "@$host: fshash $fs" remote_fshash
rc_fshash=$?
set -e
- case $dryrun in nil) $verbose " done" ;; esac
+ case $dryrun in
+ nil)
+ hrfs=$(hash_file "$fshashdir/$fs.bkp")
+ $log "remote fshash $HASH checksum: $hlfs"
+ $verbose " done"
+ ;;
+ t)
+ hrfs=UNSET
+ ;;
+ esac
## Remove the snapshot.
maybe unsnap_$snap $snapargs $fs $fsarg
nil) $verbose -n " local fshash..." ;;
esac
run "local fshash $host:$fs" local_fshash || return $?
- case $dryrun in nil) $verbose " done" ;; esac
+ case $dryrun in
+ nil)
+ hlfs=$(hash_file "$localmap")
+ $log "local fshash $HASH checksum: $hlfs"
+ $verbose " done"
+ ;;
+ t)
+ hlfs=UNSET
+ ;;
+ esac
## Compare the two maps.
set +e
esac
done
+ ## Double-check the checksums.
+ if [ $hrfs != $hlfs ]; then
+ cat >&2 <<EOF
+$0: INTERNAL ERROR: fshash $HASH checksum mismatch -- aborting
+ remote fshash checksum = $hrfs
+ local fshash checksum = $hlfs
+EOF
+ exit 127
+ fi
+
## Glorious success.
maybe rm -f $localmap
case $fshash_diff in nil) ;; *) maybe rm -f $fshash_diff ;; esac