andrew@nsc.nsc.com (Andrew Lue) (06/17/88)
Does anyone know of programs which can encode and decode binaries?
If you do, please tell me where I can retrieve the source.
UUDECODE and UUENCODE won't help because I need to transfer binaries
between VMS and UNIX systems. FTP doesn't work well. We've had problems
with Kermit, too.
Why am I transfering binaries between these systems, you query?
I'm cross-compiling for a Series 32000-based target, and I have the
cross development tools on both hosts. Sometimes the load on one machine
is just too heavy, so I want to transfer some of the work to the other machine.
Thanks in advance for any assistance.
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Andrew H. Lue {decwrl|sun}!nsc!andrewhaugj@pigs.UUCP (The Beach Bum) (06/17/88)
In article <5175@nsc.nsc.com>, andrew@nsc.nsc.com (Andrew Lue) writes: > > Does anyone know of programs which can encode and decode binaries? > If you do, please tell me where I can retrieve the source. > > UUDECODE and UUENCODE won't help because I need to transfer binaries > between VMS and UNIX systems. FTP doesn't work well. We've had problems > with Kermit, too. uudecode and uuencode will work just fine, if they didn't, the net would be in trouble. you may also consider using atob and btoa from the news distribution. they may work better for you. ftp should also work just fine, assuming you aren't running ftp on a dec-20 or something else strange, just set the sucker into binary mode and away you go. i use ftp to copy entire directory trees of database files without a hitch. kermit is also a wonderful little tool, so long as you remember to put it into binary mode, or use uu(en|de)code on it first. i have transfer vms binaries to zenith z-100's before using kermit, many, many years ago (when i believe vax/vms ruled the universe ;-) i suggest you work out the problems with the tools you have before going out and getting some more tools you'll have trouble with. - john. -- The Beach Bum Big "D" Home for Wayward Hackers UUCP: ...!killer!rpp386!jfh jfh@rpp386.uucp :SMAILERS "You are in a twisty little maze of UUCP connections, all alike" -- fortune
rbj@cmr.icst.nbs.gov (Root Boy Jim) (06/24/88)
? From: Andrew Lue <andrew@nsc.nsc.com>
? Does anyone know of programs which can encode and decode binaries?
? If you do, please tell me where I can retrieve the source.
? UUDECODE and UUENCODE won't help because I need to transfer binaries
? between VMS and UNIX systems. FTP doesn't work well. We've had problems
? with Kermit, too.
Try binary in FTP mode. But why won't uu{en,de}code work? Yes, VMS doesn't
have them, but they are trivial to write and public domain.
Of course you could write your own version. Here is the basic approach.
Your utility, encode takes a file name as it's argument. The first thing
it outputs is the filename and its length. Then, read a character, C.
Output ('@' + ((C >> 4) & 15)). Output ('@' + (C & 15)). Every 32 chars
read (64 chars written) output a newline. Finally, output "x\n".
The decode utility reads the filename from the first line and creates it.
For each pair of characters read (call them X and Y, if they are "x\n" stop),
write (((X & 15) << 4) + (Y & 15)). Trivial to code.
Uu{en,de}code writes three chars into four, packing the next six bits into
the next output character and biasing the result by "`". Each line is
preceded by the *input* character count, biased by " ", and followed by
a newline. The "M" that you see so often reflects a full line of 45 input
characters ('M' - ' ' = 45), encoded into 60 output characters.
Any extra characters needed to make a group of three are treated as nulls,
altho their value really doesn't matter. Good luck and have fun!
? Andrew H. Lue {decwrl|sun}!nsc!andrew
(Root Boy) Jim Cottrell <rbj@icst-cmr.arpa>
National Bureau of Standards
Flamer's Hotline: (301) 975-5688
The opinions expressed are solely my own
and do not reflect NBS policy or agreement
Careful with that VAX Eugene!