c3270(1) General Commands Manual c3270(1)
NAME
c3270 - curses-based IBM host access tool
SYNOPSIS
c3270 [options] [host]
DESCRIPTION
c3270 opens a telnet connection to an IBM host in a console window. It implements RFCs 2355 (TN3270E), 1576 (TN3270) and 1646 (LU name
selection), and supports IND$FILE file transfer. If the console is capable of displaying colors, then c3270 emulates an IBM 3279. Other-
wise, it emulates a 3278.
The full syntax for host is:
[prefix:]...[LUname@]hostname[:port]
Prepending a p: onto hostname causes the connection to go through the telnet-passthru service rather than directly to the host. See
PASSTHRU below.
Prepending an s: onto hostname removes the "extended data stream" option reported to the host. See -tn below for further information.
Prepending an n: onto hostname turns off TN3270E support for the session.
A specific LU name to use may be specified by prepending it to the hostname with an `@'. Multiple LU names to try can be separated by com-
mas. An empty LU can be placed in the list with an extra comma.
On systems that support the forkpty library call, the hostname may be replaced with -e and a command string. This will cause c3270 to con-
nect to a local child process, such as a shell.
The port to connect to defaults to telnet. This can be overridden with the -port option, or by appending a port to the hostname with a
colon `:'. (For compatability with previous versions of c3270 and with tn3270(1), the port may also be specified as a second, separate
argument.)
OPTIONS
c3270 understands the following options:
-allbold
Forces all characters to be displayed in bold. This helps with PC consoles which display non-bold characters in unreadably dim col-
ors.
-charset name
Specifies an EBCDIC host character set. See CHARACTER SETS below.
-clear toggle
Sets the initial value of toggle to false. The list of toggle names is under TOGGLES below.
-hostsfile file
Uses file as the hosts file, which allows aliases for host names and scripts to be executed at login. See ibm_hosts(1) for details.
-keymap name
Specifies a keyboard map to be found in the resource c3270.keymap.name or the file name. See KEYMAPS below for details.
-model name
The model of 3270 display to be emulated. The model name is in two parts, either of which may be omitted:
The first part is the base model, which is either 3278 or 3279. 3278 specifies a monochrome 3270 display; 3279 specifies a color
3270 display.
The second part is the model number, which specifies the number of rows and columns. Model 4 is the default.
Model Number Columns Rows
------------------------------
2 80 24
3 80 30
4 80 43
5 132 27
Note: Technically, there is no such 3270 display as a 3279-4 or 3279-5, but most hosts seem to work with them anyway.
The default model for a color display is 3279-4. For a monochrome display, it is 3278-4.
-mono Forces 3278 emulation.
-oversize colsxrows
Makes the screen larger than the default for the chosen model number. This option has effect only in combination with extended data
stream support (controlled by the "c3270.extended" resource), and only if the host supports the Query Reply structured field. The
number of columns multiplied by the number of rows must not exceed 16383 (3fff hex), the limit of 14-bit 3270 buffer addressing.
-port n
Specifies a different TCP port to connect to. n can be a name from /etc/services like telnet, or a number. This option changes the
default port number used for all connections. (The positional parameter affects only the initial connection.)
-printerlu luname
Causes c3270 to automatically start a pr3287 printer session. If luname is ".", then the printer session will be associated with
the interactive terminal session (this requires that the host support TN3270E). Otherwise, the value is used as the explicit LU
name to associate with the printer session.
-set toggle
Sets the initial value of toggle to true. The list of toggle names is under TOGGLES below.
-tn name
Specifies the terminal name to be transmitted over the telnet connection. The default name is IBM-model_name-E, for example,
IBM-3279-4-E for a color display, or IBM-3278-4-E for a monochrome display.
Some hosts are confused by the -E suffix on the terminal name, and will ignore the extra screen area on models 3, 4 and 5.
Prepending an :s on the hostname, or setting the "c3270.extended" resource to "false", removes the -E from the terminal name when
connecting to such hosts.
The name can also be specified with the "c3270.termName" resource.
-trace Turns on data stream and event tracing at startup. The default trace file name is /tmp/x3trc.process_id.
-tracefile file
Specifies a file to save data stream and event traces into, overriding the default of /tmp/x3trc.process_id.
-tracefilesize size
Places a limit on the size of a trace file. If this option is not specified, or is specified as 0 or none, the trace file will be
unlimited. If specified, the trace file cannot already exist, and the (silently enforced) minimum size is 64 Kbytes. The value of
size can have a K or M suffix, indicating kilobytes or megabytes respectively.
-xrm "c3270.resource: value"
Sets the value of the named resource to value. Resources control less common c3270 options, and are defined under RESOURCES below.
CHARACTER SETS
The -charset option or the "c3270.charset" resource controls the EBCDIC host character set used by c3270. Available sets include:
Charset Name Code Page Display Character Sets
--------------------------------------------------------
apl 37 3270cg-1a
belgian 500 3270cg-1a 3270-cg1 iso8859-1
bracket 37 3270cg-1a 3270-cg1 iso8859-1
brazilian 275 3270cg-1a 3270-cg1 iso8859-1
finnish 278 3270cg-1a 3270-cg1 iso8859-1
french 297 3270cg-1a 3270-cg1 iso8859-1
german 273 3270cg-1a 3270-cg1 iso8859-1
icelandic 871 3270cg-1a 3270-cg1 iso8859-1
iso-hebrew 424 iso8859-8
iso-turkish 1026 iso8859-9
italian 280 3270cg-1a 3270-cg1 iso8859-1
norwegian 277 3270cg-1a 3270-cg1 iso8859-1
russian 880 koi8-r
solvenian 870 iso8859-2
thai 838 iso8859-11 tis620.2529-0
uk 285 3270cg-1a 3270-cg1 iso8859-1
us-intl 37 3270cg-1a 3270-cg1 iso8859-1
The default character set is bracket, which is useful for common IBM hosts which use EBCDIC codes 0xAD and 0xBD for the `[' and `]'
characters, respectively.
HOSTS DATABASE
c3270 uses the ibm_hosts database to define aliases for host names, and to specify macros to be executed when a connection is first made.
See ibm_hosts(5) for details.
You may specify a different ibm_hosts database with the "c3270.hostsFile" resource.
NVT (ANSI) MODE
Some hosts use an ASCII front-end to do initial login negotiation, then later switch to 3270 mode. c3270 will emulate an ANSI X.64
terminal until the host places it in 3270 mode (telnet BINARY and SEND EOR modes, or TN3270E mode negotiation).
If the host later negotiates to stop functioning in 3270 mode, c3270 will return to ANSI emulation.
In NVT mode, c3270 supports both character-at-a-time mode and line mode operation. You may select the mode with a menu option. When in
line mode, the special characters and operational characteristics are defined by resources:
Mode/Character Resource Default
--------------------------------------------------------
Translate CR to NL c3270.icrnl true
Translate NL to CR c3270.inlcr false
Erase previous character c3270.erase ^?
Erase entire line c3270.kill ^U
Erase previous word c3270.werase ^W
Redisplay line c3270.rprnt ^R
Ignore special meaning of next c3270.lnext ^V
character
Interrupt c3270.intr ^C
Quit c3270.quit ^
End of file c3270.eof ^D
Separate keymaps can be defined for use only when c3270 is in 3270 mode or NVT mode. See KEYMAPS for details.
TOGGLES
c3270 has a number of configurable modes which may be selected by the -set and -clear options.
monoCase
If set, c3270 operates in uppercase-only mode.
blankFill
If set, c3270 behaves in some un-3270-like ways. First, when a character is typed into a field, all nulls in the field to the left
of that character are changed to blanks. This eliminates a common 3270 data-entry surprise. Second, in insert mode, trailing
blanks in a field are treated like nulls, eliminating the annoying `lock-up' that often occurs when inserting into an field with
(apparent) space at the end.
lineWrap
If set, the ANSI terminal emulator automatically assumes a NEWLINE character when it reaches the end of a line.
The names of the toggles for use with the -set and -clear options are as follows:
Option Name
-------------------------------------
Monocase monoCase
Blank Fill blankFill
Track Cursor cursorPos
Trace Data Stream dsTrace
Trace Events eventTrace
Save Screen(s) in File screenTrace
Wraparound lineWrap
These names are also used as the first parameter to the Toggle action.
STATUS LINE
If the terminal that c3270 is running on has at least one more row that the 3270 model requires (e.g., 25 rows for a model 2), c3270 will
display a status line. The c3270 status line contains a variety of information. From left to right, the fields are:
comm status
Three symbols indicate the state of the connection to the host. If connected, the right-hand symbol is a solid box; if not, it is a
question mark.
keyboard lock
If the keyboard is locked, an "X" symbol and a message field indicate the reason for the keyboard lock.
typeahead
The letter "T" indicates that one or more keystrokes are in the typeahead buffer.
temporary keymap
The letter "K" indicates that a temporary keymap is in effect.
reverse
The letter "R" indicates that the keyboard is in reverse field entry mode.
insert mode
The letter "I" indicates that the keyboard is in insert mode.
printer session
The letter "P" indicates that a pr3287 session is active.
LU name
The LU name associated with the session, if there is one.
cursor position
The cursor row and column are optionally displayed, separated by a "/".
ACTIONS
Here is a complete list of basic c3270 actions. Script-specific actions are described on the x3270-script(1) manual page.
Actions marked with an asterisk (*) may block, sending data to the host and possibly waiting for a response.
*Attn attention key
BackSpace move cursor left (or send
ASCII BS)
BackTab tab to start of previous input
field
CircumNot input "^" in NVT mode, or
"notsign" in 3270 mode
*Clear clear screen
Compose next two keys form a special
symbol
*Connect(host) connect to host
*CursorSelect Cursor Select AID
Delete delete character under cursor
(or send ASCII DEL)
DeleteField delete the entire field
DeleteWord delete the current or previous
word
*Disconnect disconnect from host
Down move cursor down
Dup duplicate field
*Enter Enter AID (or send ASCII CR)
Erase erase previous character (or
send ASCII BS)
EraseEOF erase to end of current field
EraseInput erase all input fields
Escape escape to c3270> prompt
Execute(cmd) execute a command in a shell
FieldEnd move cursor to end of field
FieldExit clear to end of field and skip
to next (5250 emulation)
FieldMark mark field
HexString(hex_digits) insert control-character
string
Home move cursor to first input
field
Insert set insert mode
*Interrupt send TELNET IP to host
Key(keysym) insert key keysym
Key(0xxx) insert key with ASCII code xx
Left move cursor left
Left2 move cursor left 2 positions
MonoCase toggle uppercase-only mode
MoveCursor(row, col) move cursor to (row,col)
Newline move cursor to first field on
next line (or send ASCII LF)
NextWord move cursor to next word
*PA(n) Program Attention AID (n from
1 to 3)
*PF(n) Program Function AID (n from 1
to 24)
PreviousWord move cursor to previous word
Printer(Start[,lu]|Stop) Start or stop printer session
PrintText(command) print screen text on printer
Quit exit c3270
Redraw redraw window
Reset reset locked keyboard
Right move cursor right
Right2 move cursor right 2 positions
*Script(command[,arg...]) run a script
*String(string) insert string (simple macro
facility)
*SysReq System Request AID
Tab move cursor to next input
field
Toggle(option[,set|clear]) toggle an option
ToggleInsert toggle insert mode
ToggleReverse toggle reverse-input mode
*Transfer(option=value...) file transfer
Up move cursor up
ignore do nothing
Any of the above actions may be entered at the c3270> prompt; these commands are also available for use in keymaps (see KEYMAPS). Command
names are case-insensitive. Parameters can be specified with parentheses and commas, e.g.:
PF(1)
or with spaces, e.g.:
PF 1
Parameters can be quoted with double-quote characters, to allow spaces, commas, and parentheses to be used.
c3270 also supports the following interactive commands:
Help Displays a list of available commands.
Show Displays statistics and settings.
Trace Turns tracing on or off. The command trace on enables data stream and keyboard event tracing; the command trace off disables it.
The qualifier data or keyboard can be specified before on or off to enable or disable a particular trace. After on, a filename may
be specified to override the default trace file name of /tmp/x3trc.pid.
KEYMAPS
The -keymap option allows a keymap to be specified. If the option -keymap xxx is given, then c3270 will first look for a resource named
c3270.keymap.xxx; if that is not found, then it will look for a file named xxx.
Multiple keymaps may be specified be separating their names with commas. Definitions in later keymaps supercede those in earlier keymaps.
In addition, separate keymaps may be defined that apply only in 3270 mode or only in NVT mode. For example, the resource definition
c3270.keymap.xxx.nvt will augment the definition of c3270.keymap.xxx, when c3270 is in NVT mode. Similarly, the resource definition
c3270.keymap.xxx.3270 will augment the definition of c3270.keymap.xxx, when c3270 is in 3270 mode.
Keymaps specify actions to perform when a particular sequence of keys is pressed. Each line in a keymap has the following syntax:
[Meta][Ctrl]<Key>key...: Action[(param[,...])] ...
For example:
Meta<Key>c: Clear()
<Key>PPAGE: PF(7)
Ctrl<Key>A <Key>F1: PF(13)
The optional Meta or Ctrl qualifiers specify that the Meta and Ctrl keys are pressed along with the specified key, respectively. The key
is either a valid X11 keysym (these are the ISO 8859-1 symbol names, such as equal for `=' and a for `a') or a valid symbolic ncurses key
name, such as UP. The Action is an action from the ACTIONS list, above. More than one action may be specified. (Note that symbolic
ncurses key names can be used only if the c3270.cursesKeymap resource is set to True, which enables ncurses keymap mode.)
Keymap entries are case-sensitive and modifier-specific. This means that a keymap for the b key will match only a lowercase b. Actions
for uppercase B, or for Meta-b or Control-B, must be specified separately.
The base keymap is:
Key Action
-------------------------------------
Ctrl<Key>] Escape
Ctrl<Key>a Ctrl<Key>a Key(0x01)
Ctrl<Key>a Ctrl<Key>] Key(0x1d)
Ctrl<Key>a <Key>Tab BackTab
Ctrl<Key>a <Key>c Clear
Ctrl<Key>a <Key>e Escape
Ctrl<Key>a <Key>r Reset
Ctrl<Key>a <Key>l Redraw
Ctrl<Key>a <Key>m Compose
Ctrl<Key>a <Key>^ Key(notsign)
<Key>UP Up
<Key>DOWN Down
<Key>LEFT Left
<Key>RIGHT Right
<Key>F(n) PF(n)
Ctrl<Key>a <Key>F(n) PF(n+12)
Ctrl<Key>a <Key>1 PA(1)
Ctrl<Key>a <Key>2 PA(2)
Ctrl<Key>a <Key>3 PA(3)
The base 3270-mode keymap adds:
Key Action
---------------------------
Ctrl<Key>c Clear
Ctrl<Key>r Reset
Ctrl<Key>l Redraw
<Key>Tab Tab
<Key>DC Delete
<Key>BACKSPACE BackSpace
<Key>BackSpace BackSpace
<Key>Return Enter
<Key>Linefeed Newline
THE META OR ALT KEY
Some keyboards do not have a Meta key. Instead, they have an Alt key. Sometimes this key acts as a proper Meta key, that is, it is a
modifier key that sets the high-order bit(0x80) in the code that is transmitted for each key. Other keyboards send a two-character
sequence when the Alt key is pressed with another key: the Escape character(0x1b), followed by the code for the other key.
The resource c3270.metaEscape and the termcap km attribute control how c3270 will interpret these sequences. When c3270.metaEscape is set
to true, or when c3270.metaEscape is set to auto and the termcap km attribute is set, the keyboard is assumed to have a separate Meta key.
The Escape key can be used as an ordinary data key and has no special meaning.
When c3270.metaEscape is set to true, or when c3270.metaEscape is set to auto and the termcap km attribute is not set, the keyboard is
assumed to use the Escape character as a prefix to indicate that the following character is supposed to have the high-order bit set. When
c3270 sees an Escape character from the keyboard, it sets a short timeout. If another character arrives before the timeout expires, then
c3270 will combine the two characters, setting the high-order bit of the second. In an event trace file, the combined character is listed
as derived. In a keymap, only the combined character or the Meta prefix may be used. The Escape key can still be used by itself, but only
if there is a short pause before pressing another key.
The default value for c3270.metaEscape is auto.
FILE TRANSFER
The Transfer action implements IND$FILE file transfer. This action requires that the IND$FILE program be installed on the IBM host, and
that the 3270 cursor be located in a field that will accept a TSO or VM/CMS command.
Because of the complexity and number of options for file transfer, the parameters to the Transfer action take the unique form of
option=value, and can appear in any order. The options are:
Option Required? Default Other Values
------------------------------------------------------------------
Direction No send receive
HostFile Yes
LocalFile Yes
Host No tso vm
Mode No ascii binary
Cr No remove add, keep
Exist No keep replace, append
Recfm No fixed, variable, undefined
Lrecl No
Blksize No
Allocation No tracks, cylinders, avblock
PrimarySpace No
SecondarySpace No
The option details are as follows.
Direction
send (the default) to send a file to the host, receive to receive a file from the host.
HostFile
The name of the file on the host.
LocalFile
The name of the file on the local workstation.
Host The type of host (which dictates the form of the IND$FILE command): tso (the default) or vm.
Mode Use ascii (the default) for a text file, which will be translated between EBCDIC and ASCII as necessary. Use binary for non-text
files.
Cr Controls how Newline characters are handled when transferring Mode=ascii files. remove (the default) strips Newline characters in
local files before transferring them to the host. add adds Newline characters to each host file record before transferring it to
the local workstation. keep preserves Newline characters when transferring a local file to the host.
Exist Controls what happens when the destination file already exists. keep (the default) preserves the file, causing the Transfer action
to fail. replace overwrites the destination file with the source file. append appends the source file to the destination file.
Recfm Controls the record format of files created on the host. fixed creates a file with fixed-length records. variable creates a file
with variable-length records. undefined creates a file with undefined-length records (TSO hosts only). The Lrecl option controls
the record length or maximum record length for Recfm=fixed and Recfm=variable files, respectively.
Lrecl Specifies the record length (or maximum record length) for files created on the host.
Blksize
Specifies the block size for files created on the host. (TSO hosts only.)
Allocation
Specifies the units for the TSO host PrimarySpace and SecondarySpace options: tracks, cylinders or avblock.
PrimarySpace
Primary allocation for a file created on a TSO host. The units are given by the Allocation option.
SecondarySpace
Secondary allocation for a file created on a TSO host. The units are given by the Allocation option.
SCRIPTS
There are several types of script functions available.
The String Action
The simplest method for scripting is provided via the String action. The arguments to String are one or more double-quoted strings
which are inserted directly as if typed. The C backslash conventions are honored as follows. (Entries marked * mean that after
sending the AID code to the host, c3270 will wait for the host to unlock the keyboard before further processing the string.)
Left
f Clear*
Enter*
pan PA(n)*
pfnn PF(nn)*
Newline
Tab
T BackTab
An example keymap entry would be:
Meta<Key>p: String("probs clearrdr
")
Note: The strings are in ASCII and converted to EBCDIC, so beware of inserting control codes.
There is also an alternate form of the String action, HexString, which is used to enter non-printing data. The argument to
HexString is a string of hexadecimal digits, two per character. A leading 0x or 0X is optional. In 3270 mode, the hexadecimal data
represent EBCDIC characters, which are entered into the current field. In NVT mode, the hexadecimal data represent ASCII
characters, which are sent directly to the host.
The Script Action
This action causes c3270 to start a child process which can execute c3270 actions. Standard input and output from the child process
are piped back to c3270. The Script action is fully documented in x3270-script(1).
COMPOSITE CHARACTERS
c3270 allows the direct entry of accented letters and special symbols. Pressing and releasing the "Compose" key, followed by two other
keys, causes entry of the symbol combining those two keys. For example, "Compose" followed by the "C" key and the "," (comma) key, enters
the "C-cedilla" symbol. A C on the status line indicates a pending composite character.
The mappings between these pairs of ordinary keys and the symbols they represent is controlled by the "c3270.composeMap" resource; it gives
the name of the map to use. The maps themselves are named "c3270.composeMap.name". The default is "latin1", which gives mappings for most
of the symbols in the ISO 8859-1 Latin-1 character set that are not in the 7-bit ASCII character set.
Note: The default keymap defines Meta<Key>m as the "Compose" key. You may set up your own "Compose" key with a keymap that maps some other
keysym onto the Compose action.
PRINTER SUPPORT
c3270 supports associated printer sessions via the pr3287(1) program. The Printer action is used to start or stop a pr3287 session.
The action Printer Start starts a printer session, associated with the current LU. (This works only if the host supports TN3270E.)
The action Printer Start lu starts a printer session, associated with a specific lu.
The action Printer Stop stops a printer session.
The resource c3270.printer.command specifies the command used to print each job; it defaults to lpr. The resource
c3270.printer.assocCommandLine specifies the command used to start an associated printer session. It defaults to:
pr3287 -assoc %L% -command "%C%" %H%
The resource c3270.printer.luCommandLine specifies the command used to start a specific-LU printer session. It defaults to:
pr3287 -command "%C%" %L%@%H%
When the printer session command is run, the following substitutions are made:
Token Substitition
%C% Command (value of c3270.printer.command)
%H% Host IP address
%L% Current or specified LU
See pr3287(1) for further details.
PASSTHRU
c3270 supports the Sun telnet-passthru service provided by the in.telnet-gw server. This allows outbound telnet connections through a
firewall machine. When a p: is prepended to a hostname, c3270 acts much like the itelnet(1) command. It contacts the machine named
internet-gateway at the port defined in /etc/services as telnet-passthru (which defaults to 3514). It then passes the requested hostname
and port to the in.telnet-gw server.
RESOURCES
Certain c3270 options can be configured via resources. Resources are defined in the file .c3270pro in the user's home directory, and by
-xrm options. The definitions are similar to X11 resources, and use a similar syntax. The resources available in c3270 are:
Resource Default Option Purpose
-------------------------------------------------------------------------
allBold Auto -allbold Display all characters bold
blankFill False -set blankFill Blank Fill mode
charset bracket -charset EBCDIC character set
charset.foo Definition of character set
foo
composeMap latin1 Name of composed-character
map
cursesKeymap True Set curses keymap option
dsTrace False -trace Data stream tracing
eof ^D NVT-mode EOF character
erase ^H NVT-mode erase character
extended True Use 3270 extended data stream
eventTrace False -trace Event tracing
ftCommand ind$file Host file transfer command
hostsFile -hostsfile Host alias/macro file
icrnl False Map CR to NL on NVT-mode
input
inlcr False Map NL to CR in NVT-mode
input
intr ^C NVT-mode interrupt character
keymap -keymap Keyboard map name
keymap.foo Definition of keymap foo
kill ^U NVT-mode kill character
lineWrap False -set lineWrap NVT line wrap mode
lnext ^V NVT-mode lnext character
m3279 (note 1) -mono 3279 (color) emulation
metaEscape Auto Interpret ESC-x as Meta-x
monoCase False -set monoCase Mono-case mode
numericLock False Lock keyboard for numeric
field error
oerrLock True Lock keyboard for input error
oversize -oversize Oversize screen dimensions
port telnet -port Non-default TCP port
printer.* (note 4) Printer session config
quit ^ NVT-mode quit character
rprnt ^R NVT-mode reprint character
secure False Disable "dangerous" options
termName (note 2) -tn TELNET terminal type string
traceDir /tmp Directory for trace files
traceFile (note 3) -tracefile File for trace output
typeahead True Allow typeahead
werase ^W NVT-mode word-erase character
Note 1: m3279 defaults to True if the terminal supports color, False otherwise. It can be forced to False with the -mono option.
Note 2: The default terminal type string is constructed from the model number, color emulation, and extended data stream modes.
E.g., a model 2 with color emulation and the extended data stream option would be sent as IBM-3279-2-E. Note also that when TN3270E
mode is used, the terminal type is always sent as some type of 3278.
Note 3: The default trace file is x3trc.pid in the directory specified by the traceDir resource.
Note 4: See PRINTER SUPPORT for details.
In .c3270pro, lines are continued with a backslash character.
-xrm options override definitions found in .c3270pro. If more than one -xrm option is given for the same resource, the last one on the
command line is used.
FILES
/usr/local/lib/x3270/ibm_hosts
$HOME/.c3270pro
SEE ALSO
x3270(1), s3270(1), tcl3270(1), ibm_hosts(5), x3270-script(1), pr3287(1), telnet(1), tn3270(1)
Data Stream Programmer's Reference, IBM GA23-0059
Character Set Reference, IBM GA27-3831
RFC 1576, TN3270 Current Practices
RFC 1646, TN3270 Extensions for LUname and Printer Selection
RFC 2355, TN3270 Enhancements
COPYRIGHTS
Modifications Copyright 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001 by Paul Mattes.
Original X11 Port Copyright 1990 by Jeff Sparkes.
Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby
granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission
notice appear in supporting documentation.
Copyright 1989 by Georgia Tech Research Corporation, Atlanta, GA 30332.
All Rights Reserved. GTRC hereby grants public use of this software. Derivative works based on this software must incorporate this
copyright notice.
5250 Emulation Code Copyright Minolta (Schweiz) AG, Beat Rubischon.
VERSION
c3270 3.2.19
01 May 2002 c3270(1)