[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

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

880.0. "ARC file header errors" by MEIS::ZIMMERMAN (Angry goose! Angry, angry goose!) Fri Nov 06 1987 15:09

    I copied Mike Leibow's VT200.ARC to one of my VMS directories with
    the intention of downloading it.  After several failures, I did an
    ARC L on the VMS copy and - lo! - I got the same "header" errors on 
    the VMS side that I got on the Amiga side after I downloaded.  I 
    tried it on another ARC file, ARKDEMO.ARC, with the same result - 
    "header" errors on the VMS side.

    Any suggestions?  

    - Cliff

T.RTitleUserPersonal
Name
DateLines
880.1PLDVAX::SMCAFEESteve McAfeeFri Nov 06 1987 16:1814
    
    You might want to try running CVTARC on the files in question. 
    I use KERMIT most of the time and I always "CVTARC V filename" the
    files on the vax before I download them.  This gets the files into
    a 510 byte variable length record format which Kermit likes.
    
    I've downloaded both of the ARC files you mentioned in this manner.
    BTW I think the VMS ARC.EXE only works in a limited number of modes
    I one I've used is "ARC X filename".  "ARC L filename" never seems to
    work.
    
    regards,
    
    steve mcafee
880.2BAGELS::BRANNONDave BrannonFri Nov 06 1987 17:2614
    do a dir/full of any arc file you plan to download
    
    cvtarc u filename will convert the arc file to a format that
                      VMS ARC.EXE can use.
    cvtarc v filename will convert the arc file to a format that 
                      VMSSWEEP.EXE and KERMIT can use.
    
    I now just use VMSSWEEP as a sanity check before downloading with
    KERMIT.  I have encountered arc files that KERMIT said transferred
    ok, but were corrupted by line noise.  But if all the files are
    corrupted, that usually means the file wasn't in the form KERMIT
    expected it.
    
    -Dave
880.3SET FILE BINARY!!MPGS::BAEDERFri Nov 06 1987 21:0811
    re: .1
    arc on vms is a full implementation of arc...just be sure the file
    is in stream_lf format...
    
    re: .0 
    Don't forget to tell kermit AND the vt100 or other DL prog on the
    amiga that it is a BINARY file....in kermit   SET FILE TYPE BINARY
    befor the DL starts...
    
    scott.
    
880.4Goods news, and bad news.MEIS::ZIMMERMANAngry goose! Angry, angry goose!Sat Nov 07 1987 10:4424
    I ran an ARC file through CVTARC-U, and the header errors disappeared 
    on the VMS side.  Amazing!  But I still get errors on the downloaded 
    files.

    I'm using a version of Dave Wecker's VT100 that I found on Fish Disk
    29, which supports both XMODEM and KERMIT formats.  As a check, I
    also tried a copy of AmigaTerm that I found on BCS disk 5, which
    supports XMODEM only.  I use the binary (or image) option on either
    program. 

    XMODEM won't touch the stream versions of the files.  I tried all the
    options on the VMS side - S, SC, ST, STC - and XMODEM on the Amiga
    side just hangs out "waiting for a character", it says. 

    KERMIT will transfer blocked versions of the files, but there are 
    header errors afterwards.  I set the KERMIT-32 file type to binary, 
    and defaulted the rest.

    Does this sound kosher so far?  I get the feeling there's a magic 
    word here somewhere that I haven't uttered.  How about TERM settings?  
    In a previous note, someone suggested setting EIGHTBIT, PASSALL, and 
    PASSTHRU.  Is that required?

    - Cliff
880.5BAGELS::BRANNONDave BrannonSat Nov 07 1987 22:4713
    RE:.4
    
    set term/nobroad/eight
    before invoking kermit for binary file transfers
    
    kermit>set file type binary
    and also set VT100 to Image transfer
    
    but the arc file must be in fixed format, not stream 
    Even after all that i still sometimes get corrupted 
    arc files due to noisy lines or bad modem.
    
    -dave
880.6Life is sweet again!MEIS::ZIMMERMANAngry goose! Angry, angry goose!Tue Nov 10 1987 11:337
    EIGHT was the magic word!  Everything works great now.  Thanks for 
    the help, everyone!

    - Cliff

    PS to anyone else just starting out in the Enet PD world:  Copy Mike
    Liebow's VT200 program FIRST.  It's terrific.