1 files changed, 43 insertions, 0 deletions
diff --git a/tools/ocft/helpers.sh b/tools/ocft/helpers.sh
new file mode 100644
index 0000000..9848934
--- /dev/null
+++ b/tools/ocft/helpers.sh
@@ -0,0 +1,43 @@
+get_rundir() {
+	local rundir
+	rundir="`mount | grep '/run ' | awk '{print $3}'`"
+	echo ${rundir:-"/var/run"}
+}
+
+loopbackeddev() {
+	local action file size ctlfile
+
+	action="$1"
+	file="$2"
+	size="$3"
+	ctlfile=$HA_RSCTMP/`echo $file | tr / _`
+	
+	case "$action" in
+	start|setup|make)
+		if [ ! -f "$ctlfile" ]; then
+			if [ -z "$size" ]; then
+				echo "usage: $0 action file size" >&2
+				exit 1
+			fi
+			loopdev=`losetup -f`
+			if ! dd if=/dev/zero of=$file bs=1 count=0 seek=$size 2>/dev/null; then
+				echo "$0: dd failed" >&2
+				exit 1
+			fi
+			if ! losetup $loopdev $file; then
+				echo "$0: losetup failed" >&2
+				exit 1
+			fi
+			echo $loopdev | tee $ctlfile
+		else
+			cat $ctlfile
+		fi
+	;;
+	stop|undo|unmake)
+		if [ -f "$ctlfile" ]; then
+			losetup -d `cat $ctlfile`
+			rm -f $file $ctlfile
+		fi
+	;;
+	esac
+}