Hi, Paul.

PE> RS> The same INPUT file, sure, clearly not the same OUTPUT file tho,
PE> RS> the length was different. So the CRC should be different too.

PE> PE> zip calculates the CRC on the input data.

PE> RS> I find that hard to believe. It complains about
PE> RS> a damaged archive without having unzipped it first.

PE> Easiest way to confirm is by doing a zip -0 and then a zip -9, in both case
PE> followed by a zip -v.

What do they (-0 & -9) do, Paul? Those options aren't in PKZIP (which I
use).

PE> Another way is to read the source code, as I have done.

And another way is to calculate the CRC of the input file and compare it
with the one quoted by ZIP, as I have done.

You are of course right.

Regards, fIM.

 * * Against stupidity, the Gods themselves, contend in vain!
@EOT:

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