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View Full Version : Surprise inside Snails for Palm OS 5!!!

Pilotoved
02-21-2004, 06:16 AM
I discovered it by accident: just clicked on Snails .prc while was in WinRAR. You can see the result on screenshot :).

http://ihand.ru/download/usermsg/2004_02/i339_094735_snails_inside.jpg
Tixx
02-21-2004, 12:20 PM
So what is the surprise?
Unregistered
02-21-2004, 12:22 PM
thats actually on a few user group's boards
1145climber
02-21-2004, 07:27 PM
cool. didnt know you could open PRC's with win RAR
Pilotoved
02-21-2004, 11:12 PM
Originally posted by Tixx
So what is the surprise?

The surprise is that whole game is ZIP archive. So how does it work on PDA? ;)
Arsenic
02-22-2004, 04:58 AM
A prc is a collection of resources anyway. It's not a zip file.
Cyker
02-22-2004, 11:16 AM
It's probably doing something similar like FlyZip - have an executable header and have the rest of the data stored in ZIP format after.
Pilotoved
02-22-2004, 03:10 PM
Originally posted by Arsenic
A prc is a collection of resources anyway. It's not a zip file.

OK. So why WinRAR opened it like ZIP file? ;)
joemadeus
02-22-2004, 05:09 PM
Hmmm - I just tried to open a couple .prc files in WinRAR and WinZip, and both proggies told me they were files they don't know about. Is this only for -some- .prc's?


-j
ZekeSulastin
02-23-2004, 11:12 AM
Yes, only for those encoded as specified above by Cyker.

WinRAR probably recognizes a format that is similar to the exec/encode format used in this particular game - or part of it is, in fact, Zip/RARed ...

Someone open it on the Palm with RsrcEdit and see what resources show up - I'll do it when I get home if no one else has ...
Cyker
02-23-2004, 01:03 PM
Ahh yeah Zeke - I forgot to clarify that :)

I suspect the PRC has a standard Palm program header, with maybe a few other bits, and then the rest of it is one big-arse data segment which is actually an embedded ZIP-format file structure.

This is kinda how Self-extracting ZIP files are laid out, and a lot of programs have embedded data structures in themselves like this too.
Daniel Artes
02-24-2004, 10:19 PM
I can't open Snails320NS.prc (2,891,572 bytes) with winrar..... What version of winrar did u use?
Pilotoved
02-24-2004, 10:21 PM
I can't open Snails320NS.prc (2,891,572 bytes) with winrar..... What version of winrar did u use?

3.30