Re: tn3270


minshall@violet.Berkeley.EDU
Tue, 12 Jan 88 21:05:57 PST


Jim,
        You *can* ftp tn3270, but I would suggest buying it by mail.
It is a fairly large body of code (something like 350Kbytes compressed);
additionally, it is useful for the University to have some idea of
tn3270 usage in the world (for when the University makes future development
plans).

        The following is a canned message on how to acquire tn3270
via the mail:

-----

    New versions of the tn3270 and mset commands, used to logon to CMS from
unix, has been available since the late summer of 1987.

    New features are:

        o Error messages, in English, overlay a portion of the
                screen when the user types an erroneous entry (invalid
                control sequence, attempt to enter data in an "input
                disallowed" field, etc.).

        o Ability to "escape to shell". This, by itself, is
                mostly useful in an MS-DOS (or non-BSD) system.

        o An Application Programming Interface (API). This allows
                programs, running under Unix or MS-DOS, to read and
                write the 3270 screen, and to send keystrokes (3270)
                to tn3270. This makes use of the "escape to shell"
                feature. Included in the (beta) distribution is a
                program which uses the API to receive files sent from
                the IBM host (we don't supply the IBM side at this point,
                and the rather stupid protocol is likely to change in
                the future).

        o Yale ASCII/7171/4994 "transparent" mode should now
                be fully implemented. SAS-Graph, for example,
                supports doing graphics to TEK terminals over
                this interface. Locally, we use the X windowing
                system terminal emulator (xterm), which provides
                some TEK emulation, to display SAS-Graph graphics
                on our workstations.

        o Mset now prints out program function (PF) keys in
                numerical order.

        o Various bugs have been fixed.

    To obtain the source for tn3270, send a check for $100.00 (US) payable
to "Regents of the University of California" to:

        Campus Software Office
        295 Evans Hall
        UC Berkeley, CA 94720
        USA

Specify that you are ordering tn3270.

    This version will run under MS-DOS if the PC has the Ungermann-Bass
smart TCP board (NIU).

    This version will compile under MS-DOS if you have: 512K of memory;
Microsoft C version 4.0; Microsoft MASM 4.0; the Ungermann-Bass "socket
emulation library"; and Polymake from Polytron (Hillsboro, Oregon).

Greg Minshall



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