2 files changed, 15 insertions, 0 deletions
diff --git a/include/sqfs/io.h b/include/sqfs/io.h
index 9784113..cf6f1fa 100644
--- a/include/sqfs/io.h
+++ b/include/sqfs/io.h
@@ -120,6 +120,20 @@ struct sqfs_file_t {
 	int (*truncate)(sqfs_file_t *file, uint64_t size);
 };
 
+/**
+ * @struct sqfs_sparse_map_t
+ *
+ * @brief Describes the layout of a sparse file.
+ *
+ * This structure is part of a linked list that indicates where the actual
+ * data is located in a sparse file.
+ */
+struct sqfs_sparse_map_t {
+	sqfs_sparse_map_t *next;
+	uint64_t offset;
+	uint64_t count;
+};
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/include/sqfs/predef.h b/include/sqfs/predef.h
index 7aac1a8..95d907f 100644
--- a/include/sqfs/predef.h
+++ b/include/sqfs/predef.h
@@ -68,6 +68,7 @@ typedef struct sqfs_meta_reader_t sqfs_meta_reader_t;
 typedef struct sqfs_meta_writer_t sqfs_meta_writer_t;
 typedef struct sqfs_xattr_reader_t sqfs_xattr_reader_t;
 typedef struct sqfs_file_t sqfs_file_t;
+typedef struct sqfs_sparse_map_t sqfs_sparse_map_t;
 
 typedef struct sqfs_fragment_t sqfs_fragment_t;
 typedef struct sqfs_dir_header_t sqfs_dir_header_t;