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Old 05 November 2001, 22:47   #1
andreas
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Exclamation CRC of The Zone doesn't match the one from WinZIP?

Hi,

since I'm a notorious non-believer ever since , I just checked if the CRC calculation on EAB was actually correct. I can't blatantly exclaim "it wasn't" for I don't know why it differs because I'd like to consider that the algorithm WinZIP uses for calculating might be a completely different one.
I also checked with another CRC tool and the result was the same as the CRC calculated by WinZIP.

This smells like a bug in the algorithm. RCK?

//Edit: CRC's for current files on the zone: (<-WinZIP)
Hell Run Machine (fixed) - 9da2b970
Cricket Captain - 12a4fde5

Last edited by andreas; 05 November 2001 at 23:02.
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Old 06 November 2001, 00:00   #2
Ian
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First of all, I know jack shit about CRC32's.

But maybe the CRC in the zone is of the zip file itself, not the ADF inside it.
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Old 06 November 2001, 02:14   #3
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Exclamation

Perhaps. But then it would really make no sense at all...
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Old 06 November 2001, 03:34   #4
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I would think that the CRC32 value should be in the contents of the zip, but what happens when a zip contains 4 adf's? Or an LHA or LZX or DMS Or (heaven forbid) ADZ?
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Old 06 November 2001, 12:10   #5
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Yep, the CRC32 of the zone is only for the file uploaded.
so if you upload one ADF, you will have his correct crc32, but if you upload a zip, you will have the zip crc32

@andreas: Yes I know, but my server won't start to unzip / unace each file to check his crc32 ! lol
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Old 06 November 2001, 12:18   #6
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wait wait,

I will look if I can unzipping files "on the fly" with php, and do crc32 operation in it...
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Old 06 November 2001, 12:47   #7
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okay, the fonctions for reading contents of zip (and then maybe check the CRC of the files) are not yet implemented in the stable version (4.0.6).

So I will have to wait the 4.1.0 one in order to code that
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Old 06 November 2001, 12:50   #8
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Re: CRC of The Zone doesn't match the one from WinZIP?

Quote:
Originally posted by andreas
//Edit: CRC's for current files on the zone: (<-WinZIP)
Hell Run Machine (fixed) - 9da2b970
Cricket Captain - 12a4fde5
check the CRC32 of "SpaceBalls - State Of The Art.adf" and you will see it is correct
(in the zone: 9ad306a3)
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Old 06 November 2001, 14:36   #9
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Smile

Well I blindly believe you that this is correct as it is.
But alas, the only way out is actually to wait for support of the inside-zip thing in PHP, BECAUSE otherwise everyone wanting to give others an occasion to check their CRC first (i. e. if he/she has this game version already or not) would have to upload the game in PLAIN ADF format, uncompressed, that is!
And this would really be silly! I don't want to imagine how long it will take until the 50 MB disk space on the zone is exhausted.
Argh. A loud and clear "no" from my point of view.
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Old 06 November 2001, 18:12   #10
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Yep I know.
I'll try to find another solution.
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Old 16 November 2001, 20:45   #11
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Quote:
Originally posted by andreas
I don't want to imagine how long it will take until the 50 MB disk space on the zone is exhausted.
How do you know the Zone has a limit of 50MB, then?
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Old 16 November 2001, 21:07   #12
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euh...

cause I said it in another thread.
you can see the amount of data at the very end of the zone page.
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Old 16 November 2001, 22:13   #13
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Shiiiiiiiiiiiiiiit :disgusted

During the EAB's update of this afternoon, I have lost the last version of "the zone"...

The CRC calculation isn't working anymore.
ok, it is not really important cause it was useless, but it's just boring me

Well, I will re-code it when I will be able to read into the zip files "on the fly", and get the crc32 of the files.
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Old 17 November 2001, 11:41   #14
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Happy

Sounds good.
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