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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

2341.0. "Facility with ARC" by TDCIS3::POUTHIER () Thu Mar 09 1989 10:57

    Have a question about ARC.
    Can we de-ARCed a file XXXX.ARC directly on VAX, then
    download all de-ARCed programs to AMIGA via XMODEM or
    VT100(kermit).
    Thanks and regards
    Michel
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2341.1MTWAIN::MACDONALDWA1OMM 7.093/145.05/223.58 AX.25Thu Mar 09 1989 13:566
    I find that I have to downlaod an ARCed file to my Amiga before
    deARCing it. Otherwise, the binaries don't work. I think it has
    something to do with the VMS ARC facility. I have seen explanations
    elsewhere on the conference.
    
    -Paul
2341.2SUBURB::NORRISIDid you fall off a skateboard??Thu Mar 09 1989 14:5210
    I'm no expert about ARCing and deARCing but....
    Is there any point in De-arcing before downloading to an Amiga?
    The file would be bigger, take up more disc spaces, take longer
    to download and a host of more problems.
    
    				-Ian-
    
    Ian Norris, Dec Park I, England.
    
2341.3On VMS ARC and up/down loadingPRNSYS::LOMICKAJJeff LomickaThu Mar 09 1989 18:2128
If you only want one or two files out of a large archive, it's easier to
de-arc on the VAX.  I also found dearcing on a floppy-based system,
particularly if there is only one drive, to be a painful experience.

You need VMS ARC and VMS CVTARC, which somebody posted to this
conference a long time ago.  You can get them from:

	PRNSYS::DUA1:[LOMICKAJ.UTILITIES]CVTARC.EXE,ARC.EXE.

Install both as foreign commands, then

	CVTARC U filename

will convert a file that has been uploaded with KERMIT into a file that
can be used by VMS ARC.

	CVTARC V filename

will convert a file that has been extracted from an archive into a file
that can be downloaded by KERMIT, using SET FILE TYPE BIN.

The "U" format is a STREAM_LF file, which is not understood by either
VMSSWEEP, KERMIT, or XMODEM, but is used ARC.

The "V" format is a variable length 512 byte record, which is understood
by VMSSWEEP (so I'm told), KERMIT's SET FILE TYPE BIN, and my own
transfer protocol for the ST.  I don't know about XMODEM, since I've
never gotten XMODEM on the Atari ST to work for me.
2341.4CIMNET::KYZIVATPaul KyzivatThu Mar 09 1989 21:037
    It is usually preferable to download ARCs because they resolve problems
    with files being padded and they are usually smaller than the
    originals.  If you want to download a few files from a large arc, on
    vms you can de-arc the files you want and then create a new arc with
    only them.  Then download it.

	Paul
2341.5watch out for the file renaming with VMS ARCSTAR::ROBINSONFri Mar 10 1989 14:228
     I have taken apart a few arc files on the VAX and reconstructed them
     in smaller arcs using the VMS ARC. One catch though - VMS ARC will
     rename a file such as foo to foo. by adding a . at the end. You
     may have to rename it again on the amiga.
     Dave