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- Announcing the official beta release of Info-ZIP's Zip and UnZip for Risc OS.
- ----------------------------------------------------------------------------
-
- Intro
- ----
-
- Info-ZIP's Zip/UnZip suite is a collection of programs written to perform
- file compression and decompression based upon the zipfile routines as used
- by Phil Katz (PKWARE) in PKZIP (for DOS). Its main advantage is its porta-
- bility. It has been ported to many hundreds of computer platforms, and now
- has been applied to Acorn's Risc OS machines.
-
- Archiving? Hasn't that been covered by Spark?
- --------------------------------------------
-
- One of the driving forces behind the porting of Info-ZIP's code was the
- inavailability of a free, professional archiver for Risc OS. Spark is a
- commercial product, and good at that, but it is not free and is limited
- to the Acorn world. Info-ZIP's software is copyrighted but free and is
- available together with source code for anyone who wants to use it. As an
- additional feature, Info-ZIP routines have been observed to give better
- compression than the David Pilling programs, while taking less time to do
- it. However, at the moment they are cli-only - ie you have to type the
- commands into a taskwindow. This will change in the near future, with
- the advent of a frontend, and possible Image filing system (this is a long
- way down the authors' priority list, however).
-
- CLI? Yuk! Who would want to use it?
- ----------------------------------
-
- Zip/UnZip have the advantage that they can read and write archives from
- many different computer platforms. Basically, any Unix, VMS, DOS, Mac,
- Atari, Amiga, Win NT or OS/2 system, amongst rarer systems.
-
- Yeah, but surely it can't deal with filetypes and Risc OS pathnames.
- -------------------------------------------------------------------
-
- The Acorn ports of Zip/UnZip handle filetypes and translate pathnames
- totally transparently. They can handle extentions to the point that they
- can even sort your 'c' code out into the Acorn-format directories, then
- reverse the procedure when you re-archive the files.
-
- What about encryption? Being a US product it *can't* do that, can it?
- --------------------------------------------------------------------
-
- Zipfiles can contain encryption devices for the entire archive, or select
- files in the archive. Passwords are of significant length, and can
- be verified (entered twice) to ensure correct entry. Once encrypted,
- the file(s) cannot be retrieved without the correct password(s).
- Due to US (munitions) export laws, all US distributions of the source
- and executables are stripped of their 'zcrypt' capabilities, but any
- non-US sites can store the complete systems.
-
- Cool. Beta-vapour-crippleware. I'll have to fix the sources.
- -----------------------------------------------------------
-
- The first release is an official beta release. This means executables only.
- This is done deliberately, as if errors are discovered, the authors will
- make the changes, not you as users. The sources will be included in the next
- public releases of Info-ZIP's Zip and UnZip. They can be compiled easily
- using Acorn desktop C or GNU GCC.
-
- Bet this is version 1.00. You can never trust v1.00.
- ---------------------------------------------------
-
- The versions are as follows:
- Zip 2.0j (later than 2.0.1)
- UnZip 5.13c4
- Zcrypt 2.5b
- ZipNote 2.0j
- ZipSplit 2.0j
- fUnZip 3.85
-
- What kind of fool do I look like? You're not going to release the sources.
- -------------------------------------------------------------------------
-
- The announcements for the source release will coincide with the next
- Info-ZIP releases. They will be posted to comp.sys.acorn.announce. This
- should take place it a few months, but it may be a bit longer - they are
- being held up by other ports and a dissertation, and syncronising with
- releases is easier said than done.
-
- Hmm.. I might take a look at it. Where can I get it?
- ---------------------------------------------------
-
- Releases have been made to the official Info-ZIP mirror site as
- ftp://ftp.uu.net/pub/archiving/zip/RISCOS/
- and the designated acorn-port sites of:
- ftp://www.cse.unsw.edu.au/~compsoc/public_html/aftp/acorn/infozip/
-
- Non-US users are urged to use the european or australian site, as the jpl
- site one does not contain the encryption instruments. (Decryption is
- supported in all versions of UnZip.) Please ensure you use BINARY transfer
- as this will seriously affect the performance of the resulting files (free
- tip #1). There are a few files in the directories:
-
- betarel.spk Spark-Arc of the beta release. Use SparkPlug.
- betarel.zip Zip of the beta release. Use either infozip or
- SparkFS/Sparkplug ( > v2.22)
- The rest of the files are either documentation or executables. Filetype
- them as 'absolute', and run them from a taskwindow or command-line.
-
- Please note these are likely to be uploaded to more conventional acorn
- ftp sites and BBSs shortly. The authors will not be responsible for this,
- and will release latest versions to the official sites only. Therefore,
- if you find a problem with your current version, please get the latest
- from the official site before proceeding with a bug or 'help!' report.
-
- To whom do I complain when it doesn't work?
- ------------------------------------------
-
- The authors are:
-
- Sergio Monesi Karl 'RiscMan' Davis
- Via Trento e Trieste 30 PO BOX B23
- 20046 Biassono (MI) Boronia Park 2111
- Italy AUSTRALIA
- ---------------------------- --------------------------------
- pel0015@cdc8g5.cdc.polimi.it riscman@geko.com.au
- sergio@phantom.com http://www.geko.com.au/riscman/
- sergio@g386bsd.first.gmd.de RiscMan@f510.n712.z3.fidonet.org
-
-
- Disclaimer.
- ----------
-
- The authors make no guarantees about the functionality (or lack of it) of
- the above files. They are entirely used at your own risk, as the authors
- will accept no responsibility for the resulting inconvenience or data loss.
- We also make no judgments on the suitability of other software to perform
- this task, simply noting observations in paragraph #2. All trademarks
- are copyrighted by their respective owners.
-
- I'm not satisfied.. Can't you upload it to BBS 'X'?
- --------------------------------------------------
-
- No. Get it thyself. Geez.
-
- Cheers!
- +----------------------------+---------------------------------------------+
- |.__ . . |---- You took the dog, you took the car, ----|
- ||__) o __ __ |\/| __ _ |--------- You left me on a monday; ----------|
- || \ (__ | `| | '__\ | ||----- The only thing you didn't take --------|
- || \ | ___)|__.| | (__) | ||---- Was my half-full bottle of Bundy. ------|
- +-President of the Intel Removal Society, Regd off. ARMature II BBS Sydney-+
-