BSD 4_3_Net_1 development

Work on file tn3270/ANNOUNCE

Synthesized-from: CSRG/cd2/net.1

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+New versions of the tn3270 and mset commands, used to logon to CMS from
+unix, are now available.
+
+The following bugs have been fixed in version 4.1:
+
+       o       This version corrects an earlier bug in tn3270 (telnet,
+               actually) which prevented tn3270 from running on a
+               Sun 4.
+
+       o       This version corrects for a bug on some SunOS 4.0 systems
+               (running on Sun 3's is where this has been noticed) which
+               causes screen corruption when making extensive use of
+               highlighting (which tn3270 does and "man", for some reason,
+               doesn't).
+
+       o       This version corrects a bug which caused unformatted
+               screens to behave incorrectly (the so-called CICS bug).
+
+       o       This version works correctly with VM/XA.
+
+       o       Various bugs have been fixed.
+
+The previous version of tn3270 supported an MS-DOS environment; this
+version doesn't.  See tn3270/README for some alternatives.
+
+Features include:
+
+       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 a non-BSD system.
+
+       o       An Application Programming Interface (API).  This allows
+               programs, running under Unix, 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.
+
+Greg Minshall
+minshall@berkeley.edu