NVT (ANSI) Mode
The full syntax for host is:
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 commas. 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 connect 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.)
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.
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 third part specifies the Extended 3270 Data Stream, and is given as -E. It signals the host that the 3270 display is capable of displaying extended field attributes, and supports structured fields and query replies. A 3279 always uses the Extended Data Stream (whether or not -E is specified); for a 3278 it is optional.
The default model for a color display is 3279-4-E. For a monochrome display, it is 3278-4-E.
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 removes the -E from the terminal name when connecting to such hosts.
The name can also be specified with the "c3270.termName" resource.
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.
You may specify a different ibm_hosts database with the "c3270.hostsFile" resource.
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:
|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|
|Ignore special meaning of next character||c3270.lnext||^V|
|End of file||c3270.eof||^D|
A separate keymap can be defined for use only when c3270 is in NVT mode. See KEYMAPS for details.
The names of the toggles for use with the -set and -clear options are as follows:
|Trace Data Stream||dsTrace|
|Save Screen(s) in File||screenTrace|
|BackSpace||move cursor left (or send ASCII BS)|
|BackTab||tab to start of previous input field|
|CircumNot||input "^" in NVT mode, or "¬" in 3270 mode|
|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|
|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)|
|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|
|PrintWindow(command)||print screen image (bitmap) on printer|
|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|
|ToggleInsert||toggle insert mode|
|ToggleReverse||toggle reverse-input mode|
|Up||move cursor up|
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 1Parameters can be quoted with double-quote characters, to allow spaces, commas, and parentheses to be used.
c3270 also supports the following interactive commands:
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 NVT mode. For example, the resource definition c3270.keymap.xxx.nvt will override the definition of c3270.keymap.xxx, when c3270 is in NVT mode. Similarly, the keymap in the file xxx.nvt will override the keymap in the file xxx, when c3270 is in NVT 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[,...])] ...
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 ncurses key name, such as UP. The Action is an action from the ACTIONS list, above. More than one action may be specified.
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:
For keyboards which do not have a Meta key, there is an additional keymap defined, called nometa. (On some systems, this is added by default.) The nometa keymap uses the Escape key as a substitute for the Meta key. So, for example, the 3270 PA1 action would be invoked by pressing the Escape key, then the 1 key.
|Recfm||No||fixed, variable, undefined|
|Allocation||No||tracks, cylinders, avblock|
The option details are as follows.
|\pan||PA key n*|
|\pfnn||PF key nn*|
An example keymap entry would be:
Meta<Key>p: String("probs clearrdr\n")
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 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.
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:
|%C%||Command (value of c3270.printer.command)|
|%H%||Host IP address|
|%L%||Current or specified LU|
See pr3287(1) for further details.
|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|
|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|
|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|
|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|
|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.
Modifications Copyright © 1993, 1994, 1995, 1996, 1997, 1999, 2000 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.