[comp.os.cpm] MEX batch transfer mode

jdb@NCSC.ARPA (Brown) (04/14/87)

Does anyone know what MEX is expecting when using the batch xmodem
transfer modes (ie sb and rb).  I have been trying to use it with the
Unix commands sb and rb which came from simtel20 in
pd:<unix.communication>x-ymodem.shar.1

MEX and sb/rb can't seem to agree on the exchange of file names. When
send/receiving a single file, they seem to work ok in crc/checksum
and 128/1024 combinations.  The unix version is 4.3BSD on a Vax 750.
rb and sb were compiled with cc -O -DV7 xx.c -o xx as per the
comments in the files for unix v7, 2.8 and 4.x.

Any descriprion of the file name exchange expected by MEX or
pointers to docs for it or y-modem (yam?) protocols would be
appreciated.

david brown
jdb@ncsc

caf@omen.UUCP (04/15/87)

Sounds like MEX is looking for the old MODEM7 batch hack, not YMODEM batch.
Funny, because I thought MEX was supposed to support YMODEM, but apparently
it doesn't.  If it did support YMODEM, it would work properly with the
Unix rb/sb programs assuming something isn't broken with you particular
Unix system.

You might wish to check the Unix commands with a known correct YMODEM
program such as YAM, Pro-YAM, or the shareware ZCOMM.

Chuck Forsberg WA7KGX Author of Pro-YAM communications Tools for PCDOS and Unix
...!tektronix!reed!omen!caf  Omen Technology Inc "The High Reliability Software"
  17505-V Northwest Sauvie Island Road Portland OR 97231  Voice: 503-621-3406
TeleGodzilla BBS: 621-3746 2400/1200  CIS:70007,2304  Genie:CAF  Source:TCE022
  omen Any ACU 1200 1-503-621-3746 se:--se: link ord: Giznoid in:--in: uucp
  omen!/usr/spool/uucppublic/FILES lists all uucp-able files, updated hourly

victoro@crash.CTS.COM (Dr. Snuggles) (04/17/87)

In article <KPETERSEN.12294791947.BABYL@SIMTEL20.ARPA> caf@omen.UUCP writes:
>Sounds like MEX is looking for the old MODEM7 batch hack, not YMODEM batch.

Yet the unix program I use 'xmodem' supports Modem7 batch protocals and I
still can't get Mex to accept it.  I did download and assemble Imp once
(yech!) and then Mex worked and so I removed Imp.  Immediately Mex stopped
working.  Maybe it's load dependent, but I'm lost...