diff options
Diffstat (limited to 'include/sqfs/inode.h')
| -rw-r--r-- | include/sqfs/inode.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/sqfs/inode.h b/include/sqfs/inode.h index 2b4a550..f2b6ede 100644 --- a/include/sqfs/inode.h +++ b/include/sqfs/inode.h @@ -696,6 +696,27 @@ SQFS_API int sqfs_inode_get_frag_location(const sqfs_inode_generic_t *inode, SQFS_API int sqfs_inode_get_file_block_start(const sqfs_inode_generic_t *inode, sqfs_u64 *location); +/** + * @brief Unpack the a directory index structure from an inode. + * + * The generic inode contains in its payload the raw directory index (with + * bytes swapped to host enian), but still with single byte alignment. This + * function seeks through the blob using an integer index (not offset) and + * fiddles the raw data out into a propperly aligned, external structure. + * + * @param inode A pointer to an inode. + * @param out Returns the index entry. Can be freed with a single free call. + * @param index An index value between 0 and inodex_count. + * + * @return Zero on success, @ref SQFS_ERROR_OUT_OF_BOUNDS if the given index + * points outside the directory index. Can return other error codes + * (e.g. if the inode isn't a directory or allocation failed). + */ +SQFS_API +int sqfs_inode_unpack_dir_index_entry(const sqfs_inode_generic_t *inode, + sqfs_dir_index_t **out, + size_t index); + #ifdef __cplusplus } #endif |