diff options
Diffstat (limited to 'doc/format.txt')
| -rw-r--r-- | doc/format.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/doc/format.txt b/doc/format.txt index 41cba78..85a66dc 100644 --- a/doc/format.txt +++ b/doc/format.txt @@ -664,6 +664,11 @@ +------+--------------+------------------------------------------------------+ | u16 | file size | Total (uncompressed) size in bytes of the entry | | | | listing in the directory table, including headers. | + | | | | + | | | This value is 3 bytes larger than the real listing. | + | | | The Linux kernel creates "." and ".." entries for | + | | | offsets 0 and 1, and only after 3 looks into the | + | | | listing, subtracting 3 from the size. | +------+--------------+------------------------------------------------------+ | u16 | block offset | The (uncompressed) offset within the metadata block | | | | in the directory table where the directory listing | @@ -679,8 +684,8 @@ directory. I.e. a directory with N entries has at least N + 2 link count. - If the "file size" is set to 0, the directory is empty and there is no - corresponding listing in the directory table. + If the "file size" is set to a value < 4, the directory is empty and there is + no corresponding listing in the directory table. An extended directory can have a listing that is at most 4GiB in size, may |