Comments (2)
The file extrafld.txt
in the infozip sources says the local & central versions have different sizes. No idea of the history of that.
-Info-ZIP Unix Extra Field (type 1):
==================================
The following is the layout of the old Info-ZIP extra block for
Unix. It has been replaced by the extended-timestamp extra block
(0x5455) and the Unix type 2 extra block (0x7855).
(Last Revision 19970118)
Local-header version:
Value Size Description
----- ---- -----------
(Unix1) 0x5855 Short tag for this extra block type ("UX")
TSize Short total data size for this block
AcTime Long time of last access (UTC/GMT)
ModTime Long time of last modification (UTC/GMT)
UID Short Unix user ID (optional)
GID Short Unix group ID (optional)
Central-header version:
Value Size Description
----- ---- -----------
(Unix1) 0x5855 Short tag for this extra block type ("UX")
TSize Short total data size for this block
AcTime Long time of last access (GMT/UTC)
ModTime Long time of last modification (GMT/UTC)
...
The local-header extra block may optionally contain UID and GID
info for the file. The local-header TSize value is the only
indication of this. Note that Unix UIDs and GIDs are usually
specific to a particular machine, and they generally require root
access to restore.
from zipdetails.
Interesting. Ok.
from zipdetails.
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from zipdetails.