| From: | Lee Bosch |
| Date: | 17 Mar 2001 at 16:36:55 |
| Subject: | Re: ArcHandlerEX (was Re: [D5] Re: New Stuff) |
Hello Dave
On 17-Mar-01, you wrote:
> I hate to tell you this but .ADZ files are GZIP archives.
The term "GZIP archives" doesn't make sense as GNUzip, by RFC definition,
only operates on individual files. .ADZ files are indeed compressed using
gzip but the result of uncompressing is not a collection of files; it is an
ADF format file which is used by Amiga emulators to simulate the contents
of an Amiga formatted volume.
> And, in case you haven't noticed, (although I haven't tried it recently :)
> if ArcHandlerEx recognises an archive that it doesn't have a parameter
> file for then it will give you the option of running AHGen to generate
> one.
While AHGen may be a very powerful tool, handling .ADF files requires a
filesystem (similar to the DMS filesystem handler) which, as far as I can
tell, does not exist for the Amiga (other than under UAE emulation). If
someone is interested in writing one, the details of the format are here:
<http://perso.club-internet.fr/lclevy/adflib/adf_info.html>
There are some ADF format file utilities on Aminet in the disk/misc
directory that run on the Amiga side and they could probably be wired into
DOpus using filetypes. I found these by doing a search for "ADF" using the
Aminet web interface.
Lee Bosch
ps: It is notable that the gzip format, again by RFC definition,
maintains the date stamp in recognition of the fact that the permissions
(nee protection bits) aren't meaningful across machines.