Add a command to dump filesystem metadata

1 files changed, 24 insertions, 0 deletions

diff --git a/qcow2.h b/qcow2.h
new file mode 100644
index 00000000..c6f0b6ba
--- /dev/null
+++ b/qcow2.h
@@ -0,0 +1,24 @@
+#ifndef _QCOW2_H
+#define _QCOW2_H
+
+#include <linux/types.h>
+#include "ccan/darray/darray.h"
+
+struct range {
+	u64		start;
+	u64		end;
+};
+
+typedef darray(struct range) sparse_data;
+
+static inline void data_add(sparse_data *data, u64 offset, u64 size)
+{
+	darray_append(*data, (struct range) {
+		.start = offset,
+		.end = offset + size
+	});
+}
+
+void qcow2_write_image(int, int, sparse_data *, unsigned);
+
+#endif /* _QCOW2_H */