Ensure output files are zip64-compliant (again) #114
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PR #110 fixed this incorrectly. I misinterpreted "set to zero in the local header" from §4.4.4 in the spec as referring to the two 32-bit size fields in the local header. However, the spec considers the zip64 extra record as part of the local header. The correct behavior for writing zip64 entries to unseekable files is 0xffffffff in the 32-bit local header size fields (to enable zip64), 0 in the zip64 extra record (due to streaming writes), and the actual sizes in the data descriptor. Fixes: #109 Signed-off-by: Andrew Gunnerson <[email protected]>
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PR #110 fixed this incorrectly. I misinterpreted "set to zero in the local header" from §4.4.4 in the spec as referring to the two 32-bit size fields in the local header. However, the spec considers the zip64 extra record as part of the local header. The correct behavior for writing zip64 entries to unseekable files is
0xffffffffin the 32-bit local header size fields (to enable zip64),0in the zip64 extra record (due to streaming writes), and the actual sizes in the data descriptor.Fixes: #109