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-rw-r--r--include/util/util.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/util/util.h b/include/util/util.h
index 6e34a82..0161c2b 100644
--- a/include/util/util.h
+++ b/include/util/util.h
@@ -69,4 +69,12 @@ SQFS_INTERNAL bool is_filename_sane(const char *name, bool check_os_specific);
*/
SQFS_INTERNAL sqfs_u32 get_source_date_epoch(void);
+/*
+ Check if two regions in a file are equal using a scratch buffer to load the
+ data into for comparision. Returns 0 if equal, > 0 if not, < 0 if error.
+ */
+SQFS_INTERNAL int check_file_range_equal(sqfs_file_t *file, void *scratch,
+ size_t scratch_size, sqfs_u64 loc_a,
+ sqfs_u64 loc_b, sqfs_u64 size);
+
#endif /* SQFS_UTIL_H */