The ZMODEM Asynchronous Inter Application File Transfer Protocol

                              Chuck Forsberg

                           Omen Technology Inc


                              Chuck Forsberg
                           Omen Technology Inc
                   17505-V Northwest Sauvie Island Road
                          Portland Oregon 97231
                           Voice: 503-621-3406
            Modem (Telegodzilla): 503-621-3746 Speed 1200,300
                          Compuserve: 70715,131
                    UUCP: ...!tektronix!reed!omen!caf




     DSZ(1)                XENIX System V (OMEN)                DSZ(1)



     NAME
          dsz - YMODEM, ZMODEM file transfer subprogram

     SYNOPSIS
          dsz [port N] [speed S] [d] [restrict] command
                                                -------

     DESCRIPTION
          Dsz uses the YMODEM or ZMODEM error correcting batch
          protocol to transfer files over a serial port with a variety
          of programs.  Dsz is designed to be called from a
          communications program or bulletin board to perform file
          transfers.

          Dsz uses its own modem I/O.  The original interrupt vector
          and UART interrupt configuration are restored on normal
          exit.  Dsz expects its standard output to point to the
          console or a logging file, not a modem port.

          The available commands are:

          port N
               select port N (n = 1,2,3 or 4) Default is port 1 (COM1)
               or read from the DSZPORT dos environment variable.
          speed S
               Set specified speed, default is current speed.
          d    Disables carrier dropout monitoring, for modems that do
               not properly drive the "Data Carrier Detect" input on
               the PC.
          LARG Convert ARG to lowercase, then parse arg.
          restrict
               Restrict pathnames to current disk and directory tree.
          sz   [-Vabnpr+y] [PREFIX=p | ONAME=n] afn ...
          sb   [-Vk] [PREFIX=p | ONAME=n] afn ...
          rz   [-Vabnpr+y]
          rz   [-Vabnpr+y] file1 file2 ...  (filename override)
          rb   [-Vab+y]
          rb   [-Vab+y] file1 file2 ...  (filename override)
          -V   Dsiplay debugging information.  More V's give more
               detailed information.

     EXAMPLES
          dsz sz -r b:zcom*.arc c:foo.bar

          dsz port 2 speed 19200 restrict rz

          dsz rz -y newprog.arc

     SEE ALSO
          Consult the Professional-YAM manual or ZCOMMDOC.ARC chapter
          "Options for File Transfers" for option meanings.

     NOTES



     Page 1                                         (printed 12/22/86)






     DSZ(1)                XENIX System V (OMEN)                DSZ(1)



          Dsz sets the UART shift register to 8 bits no parity; the
          original parity setting is lost.

          Dsz may be freely used and copied, but not modified or sold
          without the written permission of Omen Technology Inc.


















































     Page 2                                         (printed 12/22/86)