[comp.os.cpm] ark/unark

chad@anasaz.UUCP (Chad R. Larson) (03/15/90)

I have succeeded in getting the Simtel20 server at North Dakota to send
me some files.  The first one I got was the CP/M index, which was in an
archive along with some support files.

After I concatenated and "uudecode"ed the archive parts, I tried to
unarchive it using the archive program on our Unix machine.  This is the
System Enhancement Associates ARC 5.12 program ported to SystemV by Mike
Stump and Chris Seaman.  The Unix version identifies itself as version
1.1 dated 27 Mar 87.  This attempt failed, with various error messages
that generally indicated the archive was corrupted.

I then got the server to send me the CP/M program "unarc" (version 1.6,
dated 3/21/87) from the starter kit directory.  This program successfully
unpacked the archive.

My question is this: Why couldn't the unix version of unarc manipulate
the archive?  Aren't the formats supposed to be the same?  Has anyone
else tried this combination?  I want to be able to completely process
(uudecode/unark/whatever) files from Simtel20 on my Unix machine so I
can print the documentation on its high-speed laser printer and examine
the README files before I kermit them on to my CP/M boxes.  Shouldn't
this be possible?

Thanks for any insight.
	-crl
-- 
Chad R. Larson          ...{mcdphx,asuvax}!anasaz!chad or chad@anasaz.UUCP
Anasazi, Inc. - 7500 North Dreamy Draw Drive, Suite 120, Phoenix, Az 85020
(602) 870-3330            "I read the news today, oh boy!"  -- John Lennon

WANCHO@WSMR-SIMTEL20.ARMY.MIL ("Frank J. Wancho") (03/16/90)

Chad,

You need the latest version of ARC for Unix based on ARC 5.21.  It is
available in PD2:<UNIX-C.ARC-PROGS>.  There are several versions
available, depending on which version of Unix you have.  See the file
000-INDEX.TXT for more information.

--Frank

mark.hornblower@crs1.uucp (MARK HORNBLOWER) (03/16/90)

cP>After I concatenated and "uudecode"ed the archive parts, I tried to
cP>unarchive it using the archive program on our Unix machine.  This is
cP>the System Enhancement Associates ARC 5.12 program ported to SystemV
cP>by Mike Stump and Chris Seaman.  

cP>My question is this: Why couldn't the unix version of unarc manipulate
cP>the archive?  

You've answered your own question ... it has been my experience that 
anything from SEA is bound to be either:

A) Increbibly lame
B) Possibly dangerous
C) Both

Mark Hornblower - R.A.H.F.B.P.
---
 ~ DeLuxe 1.11a20 #2073  Pop Music - Weak Sounds For Weak Minds

bhh@insight.FIDONET.ORG (Brian Hughes) (03/24/90)

 > You've answered your own question ... it has been my 
 > experience that 
 > anything from SEA is bound to be either: 

 > A) Increbibly lame
 > B) Possibly dangerous
 > C) Both 

 > Mark Hornblower - R.A.H.F.B.P.

  I guess you're not experienced enough with CP/M to know the ark compression is different than the standard arc.  Ark is NOT a SEA product.  But then, knowing everything, you knew that already didn't you?  

  Mark, 

  Was your uninformed cheap shot really necessary?  

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dg@pallio.UUCP (David Goodenough) (03/27/90)

bhh@insight.FIDONET.ORG (Brian Hughes) says:
> I guess you're not experienced enough with CP/M to know the ark
> compression is different than the standard arc.  Ark is NOT a SEA product.
> But then, knowing everything, you knew that already didn't you?

I beg to differ. CP/M .ARK's _ARE_ compatible (and the same format) as DOS
.ARC's. I use UNARC16 (on a CP/M machine) on both types very regularly, and
it groks type 9 compression just fine - it will also unwrap either form of
AR[CK] file without noting any difference.

For those not already in the know, the only reason an .ARK is not a .ARC
is so that you know it's CP/M material inside.
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