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Annotation of 43BSDTahoe/man/man1/tn3270.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1986 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)tn3270.1    1.3 (Berkeley) 1/11/86
        !             6: .\"
        !             7: .TH TN3270 1 "January 11, 1986"
        !             8: .UC 6
        !             9: .SH NAME
        !            10: tn3270 \- full-screen remote login to IBM VM/CMS
        !            11: .SH SYNOPSIS
        !            12: .B tn3270
        !            13: sysname
        !            14: .SH DESCRIPTION
        !            15: .I Tn3270
        !            16: permits a full-screen, full-duplex connection
        !            17: from a VAX UNIX machine
        !            18: to an IBM machine running VM/CMS
        !            19: giving the appearance of being logged in
        !            20: directly to the remote machine
        !            21: on an IBM 3270 terminal.
        !            22: Of course you must have an account on the machine
        !            23: to which you wish to connect in order to log in.
        !            24: .I Tn3270
        !            25: looks to the user in many respects
        !            26: like the Yale ASCII Terminal Communication System II.
        !            27: .I Tn3270
        !            28: is actually a modification of the Arpanet TELNET user interface (see
        !            29: .IR telnet (1))
        !            30: that interprets and generates raw 3270 control streams.
        !            31: .PP
        !            32: Emulation of the 3270 terminal is done in the Unix process.
        !            33: This emulation involves mapping
        !            34: 3270-style commands from the host
        !            35: into appropriate sequences to control the user's terminal screen.
        !            36: .I Tn3270
        !            37: uses
        !            38: .IR curses (3x)
        !            39: and the
        !            40: .I /etc/termcap
        !            41: file to do this.
        !            42: The emulation also involves simulating the special 3270 keyboard keys
        !            43: (program function keys, etc.)
        !            44: by mapping sequences of keystrokes
        !            45: from the ASCII keyboard into appropriate 3270 control strings.
        !            46: This mapping is terminal dependent and is specified
        !            47: in a description file,
        !            48: .IR /etc/map3270 ,
        !            49: (see
        !            50: .IR map3270 (5))
        !            51: or in an environment variable
        !            52: .I MAP3270
        !            53: (see
        !            54: .IR mset (1)).
        !            55: Any special function keys on the ASCII keyboard are used whenever possible.
        !            56: If an entry for the user's terminal
        !            57: is not found,
        !            58: .I tn3270
        !            59: looks for an entry for the terminal type
        !            60: .B unknown.
        !            61: If this is not found,
        !            62: .I tn3270
        !            63: uses a default keyboard mapping
        !            64: (see
        !            65: .IR map3270 (5)).
        !            66: .PP
        !            67: The first character of each special keyboard mapping sequence 
        !            68: is either an ASCII escape (ESC),
        !            69: a control character, or an ASCII delete (DEL).
        !            70: If the user types an unrecognized function key sequence,
        !            71: .I tn3270
        !            72: sends an ASCII bell (BEL), or a visual bell if
        !            73: defined in the user's termcap entry, to the user's terminal
        !            74: and nothing is sent to the IBM host.
        !            75: .PP
        !            76: If
        !            77: .I tn3270 
        !            78: is invoked without specifying a remote host system name,
        !            79: it enters local command mode,
        !            80: indicated by the prompt ``tn3270>''.
        !            81: In this mode,
        !            82: .I tn3270
        !            83: accepts and executes
        !            84: the following
        !            85: commands:
        !            86: .sp 
        !            87: .nf
        !            88: .ta 0.5i 1.5i
        !            89:        open    connect to a remote host
        !            90:        close   close the current connection
        !            91:        quit    exit tn3270
        !            92:        z       suspend tn3270
        !            93:        status  print connection status
        !            94:        ?       print help information
        !            95: .fi
        !            96: .sp
        !            97: Other common
        !            98: .I telnet
        !            99: commands are not available in
        !           100: .I tn3270.
        !           101: .I Tn3270
        !           102: command mode may also be entered, after connecting to a host, by typing
        !           103: a special escape character
        !           104: (typically control-C).
        !           105: .PP
        !           106: While in command mode, any host login session is still alive
        !           107: but temporarily suspended.
        !           108: The host login session may be resumed by entering an empty line
        !           109: (press the RETURN key)
        !           110: in response to the command prompt.
        !           111: A session may be terminated by logging off the foreign host,
        !           112: or by typing ``quit'' or ``close'' while in local command mode.
        !           113: .SH FILES
        !           114: /etc/termcap
        !           115: .br
        !           116: /etc/map3270
        !           117: .SH AUTHOR
        !           118: Greg Minshall
        !           119: .SH SEE ALSO
        !           120: mset(1), telnet(1), termcap(3x), termcap(5), map3270(5),
        !           121: \fIYale ASCII Terminal Communication
        !           122: System II Program Description/Operator's Manual\fR
        !           123: (IBM SB30-1911)
        !           124: .SH BUGS
        !           125: Performance is slow and uses system resources prodigiously.
        !           126: .PP
        !           127: Not all 3270 functions are supported,
        !           128: nor all Yale enhancements.

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