44 7 zip reports headers error #1
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Extra fields need to have a 2-byte long size field after type field. Zip64 record in file header did not have this field. Fixes issue barracudanetworks#44 for recent version of 7-Zip: * 18.01 reports OK. * 16.02 still reports Headers Errror.
7-Zip version 16.02 complaints with Headers Error if there is 0xFFFF. Even when Zip64 EOF has the correct value. Fixes barracudanetworks#44 in 7-Zip version 16.02.
Only create Zip64 fields that are really needed. Only create Zip64 block if there is a value that did not fit into 32 bits.
If all values fit into old short EOF fields, skip Zip64.
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Port of barracudanetworks#45