Import libsparse sources

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

libsparse/sparse_file.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBSPARSE_SPARSE_FILE_H_
+#define _LIBSPARSE_SPARSE_FILE_H_
+
+#include <sparse/sparse.h>
+
+struct sparse_file {
+	unsigned int block_size;
+	int64_t len;
+	bool verbose;
+
+	struct backed_block_list *backed_block_list;
+	struct output_file *out;
+};
+
+
+#endif /* _LIBSPARSE_SPARSE_FILE_H_ */