ckuker.cpp

C-Kermit源码。是使用串口/Modem和网络通讯的程序

program.
.ll +0.5i
.in -0.5i
.fi
.PP
Note that other methods can be used to simplify the file-transfer process:
.IR "client/server operation" ,
in which all commands are given to the client and
passed on automatically to the server, and
.IR autodownload
(and upload), in which the remote Kermit initiates file transfers
automatically through your terminal emulator.
.PP
The file transfer protocol defaults in C-Kermit 7.0, unlike those for earlier
releases, favor speed over robustness, on the assumption that connections in
these times are usually reliable (over TCP/IP and/or error-correcting modems
with hardware flow control).  If you experience file transfer failures, use
the CAUTIOUS or ROBUST commands to choose more conservative (and therefore
slower) protocol settings.  For fine tuning of performance, you can choose
specific packet lengths, window sizes, and control-character prefixing
strategies as explained in Chapter 12 of the manual,
.IR "Using C-Kermit".
.PP
If you are accessing a remote host where C-Kermit resides via Telnet or other
connection that is guaranteed reliable from end to end, and both Kermits
support it (C-Kermit 7.0 does), a new "streaming" form of the Kermit protocol
is used automatically to give ftp-like speeds (the limiting factor being the
overhead from the remote Telnet or Rlogin server and/or PTY driver).
.SH OTHER FEATURES
C-Kermit includes features too numerous to be explained in a man page.  For
further information about connection establishment, modem dialing, networks,
terminal connection, key mapping, logging, file transfer options and features,
troubleshooting, client/server operation, character-set translation during
terminal connection and file transfer, "raw" up- and downloading of files,
macro construction, script programming, sending numberic and alphanumeric
pages, convenience features, and shortcuts, plus numerous tables, examples,
and illustrations, please consult the manual and the C-Kermit 7.0 release
notes.
.SH "GETTING HELP"
.PP
C-Kermit has extensive built-in help.  You can find out what commands exist by
typing ? at the C-Kermit> prompt.  You can type HELP at the C-Kermit> prompt
for a "getting-started" message, or HELP followed by the name
of a particular command for information about that command, for example:
.nf
.sp
  help send
.sp
.fi
or:
.nf
.sp
  help set file
.sp
.fi
You can type ? anywhere within a command to get brief help about the
current command field.  You can also type the INTRO command to get a brief
introduction to C-Kermit, and the MANUAL command to access this (or another)
man page.  Finally, you can use the SUPPORT command for instructions on
obtaining technical support.
.sp
.SH "ENTERING COMMANDS"
.sp
You can use upper or lower case for interactive-mode commands, but remember
that UNIX filenames are case-sensitive.  You can abbreviate command words
(but not filenames) as long as the abbreviation matches only one possibility.
While typing a command, you can use the following editing characters:
.nf
.sp
  Delete, Backspace, or Rubout erases the rightmost character.
  Ctrl-W erases the rightmost "word".
  Ctrl-U erases the current command line.
  Ctrl-R redisplays the current command.
  Ctrl-P recalls a previous command (scrolls back in command buffer).
  Ctrl-N scrolls forward in a scrolled-back command buffer.
  Ctrl-C cancels the current command.
  Tab, Esc, or Ctrl-I tries to complete the current keyword or filename.
  ? gives help about the current field.
.sp
.fi
To enter the command and make it execute, press the Return or Enter key.
.sp
.SH BACKSLASH NOTATION
Within an interactive command, the "\\" character (backslash) is a prefix used
to enter special quantities, including ordinary characters that would
otherwise be illegal or misinterpreted.  Other than that, the character
following the \\ identifies what the special quantity is:
.nf
.sp
  % A user-defined simple (scalar) variable such as \\%a or \\%1
  & an array reference such as \\&a[3]
  $ an environment variable such as \\$(TERM)
  v (or V) a built-in variable such as \\v(time)
  f (or F) a function such as \\Fsubstring(\\%a,3,2)
  s (or S) compact substring notation, macronames, like \\s(foo[3:12])
  : compact substring notation, all variables, like \\:(\%a[3:12])
  d (or D) a decimal (base 10) number (1 to 3 digits, 0..255) such as \\d27
  o (or O) an octal (base 8) number (1 to 3 digits, 0..377) such as \\o33
  x (or X) a hexadecimal (base 16) number (2 digits, 00..ff) like \\x1b
  \\ the backslash character itself
  b (or B) the BREAK signal (OUTPUT command only)
  l (or L) a Long BREAK signal (OUTPUT only)
  n (or n) a NUL (0) character (OUTPUT only)
  a decimal digit (a 1-, 2-, or 3-digit decimal number) such as \\27
  {} used for grouping, e.g. \\{27}123
  anything else: following character taken literally.
.sp
.fi
Note that numbers turn into the character with that binary code (0-255), so
you can use \\7 for a bell, \\13 for carriage return, \\10 for linefeed.
For example, to have C-Kermit send a BELL to your screen, type:
.nf
.sp
  echo \\7
.sp
.fi
.SH "COMMAND LIST"
.PP
The commands most commonly used, and important for beginners to
know, are marked with "*":
.nf
.in 0
.ll 80
.ta 16
.sp
Program Management:
  BACK	Return to previous directory.
  BROWSE	Invoke Web browser.
* CD	Change Directory.
* PWD	Print Working Directory.
  CHECK	See if the given feature is configured.
  CLOSE	Close the connection or a log or other local file.
  COMMENT	Introduce a full-line comment.
  COPYRIGHT	Display copyright notice.
  DATE	Display date & time.
* EXIT	Leave the program, return to UNIX.
* HELP	Display a help message for a given command.
* INTRO	Print a brief introduction to C-Kermit.
  KERMIT	Give command-line options at the prompt.
  LOG	Open a log file -- debugging, packet, session, transaction.
  PUSH	Invoke local system's interactive command interpreter.
  QUIT	Synonym for EXIT.
  REDO	Re-execute a previous command.
  RUN	Run a program or system command.
  SET COMMAND	Command-related parameters: bytesize, recall buffer size.
  SET PROMPT	The C-Kermit program's interactive command prompt.
  SET EXIT	Items related to C-Kermit's action upon exit or SET LINE/HOST.
  SHOW EXIT	Display SET EXIT parameters.
  SHOW FEATURES	Show features that C-Kermit was built with.
  SHOW VERSIONS	Show version numbers of each source module.
  SUPPORT	Find out how to get tech support.
  SUSPEND	Suspend Kermit (use only if shell supports job control!).
* SHOW	Display values of SET parameters.
* TAKE	Execute commands from a file.
  VERSION	Display the C-Kermit program version number.
  Z	Synonym for SUSPEND.
* Ctrl-C	Interrupt a C-Kermit command in progress.
  Ctrl-Z	Synonym for SUSPEND.
  ; or #	Introduce a full-line or trailing comment.
  ! or @	Synonym for RUN.
  <	Synonym for REDIRECT.
.sp
Connection Establishment and Release:
* DIAL	Dial a telephone number.
  PDIAL	Partially dial a telephone number.
* LOOKUP	Lookup a phone number, test dialing rules.
  ANSWER	Wait for a phone call and answer it when it comes.
* HANGUP	Hang up the phone or network connection.
  EIGHTBIT	Shortcut to set all i/o to 8 bits.
  PAD	Command for X.25 PAD (SunOS / Solaris / VOS only).
  PING	Check status of remote TCP/IP host.
  REDIAL	The the most recently DIALed number again.
  LOG CONNECTIONS	Keep a record of each connection.
  REDIRECT	Redirect standard i/o of command to communication connection.
  PIPE	Make a connection through an external command or program.
  SET CARRIER	Treatment of carrier on terminal connections.
* SET DIAL	Parameters related to modem dialing.
* SET FLOW	Communication line flow control: AUTO, RTS/CTS, XON/XOFF, etc.
* SET HOST	Open connection to network host name or address.
#ifdef HPUX10
* SET LINE	Open serial communication device, like /dev/cul0p0.
#else
* SET LINE	Open serial communication device, like /dev/cua0.
#endif
  SET PORT	Synonym for SET LINE.
* SET MODEM TYPE	Specify type of modem on SET LINE device, like USR.
* SET NETWORK	Network type, X.25 (SunOS / Solaris / VOS only) or TCP/IP.
  SET TCP	Specify TCP protocol options (advanced).
  SET TELNET	Specify TELNET protocol options.
  SET X.25	Specify X.25 connection parameters (SunOS/Solaris/VOS only).
  SET PAD	Specify X.25 X.3 PAD parameters (SunOS/Solaris/VOS only).
* SET PARITY	Character parity (none, even, etc) for communications.
* SET SPEED	Serial communication device speed, e.g. 2400, 9600, 57600.
  SET SERIAL    Set serial communications data size, parity, stop bits.
  SET STOP-BITS	Set serial communications stop bits.
  SHOW COMM	Display communications settings.
  SHOW CONN     Display info about current connection.
  SHOW DIAL	Display SET DIAL values.
  SHOW MODEM	Display modem type, signals, etc.
  SHOW NETWORK	Display network-related items.
* TELNET	= SET NETWORK TCP/IP, SET HOST ..., CONNECT.
  RLOGIN	Makes an RLOGIN connection (requires privilege).
  TELOPT	Send a TELNET option negotiation (advanced).
  CLOSE	Close the current connection.
.sp
Terminal Connection:
* C	Special abbreviation for CONNECT.
* CONNECT	Establish a terminal connection to a remote computer.
  LOG SESSION	Record terminal session.
  SET COMMAND	Bytesize between C-Kermit and your keyboard and screen.
* SET DUPLEX	Specify which side echoes during CONNECT.
  SET ESCAPE	Prefix for "escape commands" during CONNECT.
  SET KEY	Key redefinitions in CONNECT mode.
  SET TERMINAL	Terminal connection items: bytesize, character-set, echo, etc.
  SHOW ESCAPE	Display current CONNECT-mode escape character.
  SHOW KEY	Display keycode and assigned value or macro.
  SHOW TERMINAL	Display SET TERMINAL items.
* Ctrl-\\	CONNECT-mode escape character, follow by another character:
	  C to return to C-Kermit> prompt.
	  B to send BREAK signal.
	  ? to see other options.
.sp
File Transfer:
  ADD SEND-LIST	Add a file specification to the SEND-LIST
  ADD BINARY-PATTERNS Add a pattern to the binary file pattern list
  ADD TEXT-PATTERNS Add a pattern to the text file pattern list
  ASSOCIATE	A file character-set with a transfer character-set
  LOG SESSION   Download a file with no error checking
* SEND	Send a file or files.
  MSEND	Multiple SEND - accepts a list of files, separated by spaces.
  MOVE	SEND and then delete source file(s) if successful.
  MMOVE	Multiple MOVE - accepts a list of files, separated by spaces.
  MAIL	SEND a file to other Kermit, to be delivered as e-mail.
  RESEND	Continue a incomplete SEND.
  PSEND	Send part of a file.
* RECEIVE	Passively wait for files to arrive from other Kermit.
* R	Special abbreviation for RECEIVE.
* S	Special abbreviation for SEND.
  GET	Ask server to send the specified file(s).
  MGET	Like GET but accepts a list of files.
  REGET	Continue a incomplete download from a server.
  G	Special abbreviation for GET.
  FAST	Shortcut for fast file-transfer settings.
  CAUTIOUS	Shortcut for medium file-transfer settings.
  ROBUST	Shortcut for conservative file-transfer settings.
  SET ATTRIB	Control transmission of file attributes.
* SET BLOCK	Choose error-checking level, 1, 2, or 3.
  SET BUFFERS	Size of send and receive packet buffers.
  SET PREFIX	Which control characters to "unprefix" during file transfer.
  SET DELAY	How long to wait before sending first packet.
  SET DESTINATION DISK, PRINTER, or SCREEN for incoming files.
* SET FILE	Transfer mode (type), character-set, collision action, etc.
* SET RECEIVE	Parameters for inbound packets: packet-length, etc.
  SET REPEAT	Repeat-count compression parameters.
  SET RETRY	Packet retransmission limit.
  SET SEND	Parameters for outbound packets: length, etc.
  SET HANDSHAKE	Communication line half-duplex packet turnaround character.
  SET LANGUAGE	Enable language-specific character-set translations.
  SET PATTERNS	Turn off filename-pattern-based text/binary mode switching.
  SET SESSION-LOG File type for session log, text or binary.
  SET TRANSFER	File transfer parameters: character-set, display, etc.
  SET TRANSMIT	Control aspects of TRANSMIT command execution.
  SET UNKNOWN	Specify handling of unknown character sets.
* SET WINDOW	File transfer packet window size, 1-31.
  SHOW ATTRIB	Display SET ATTRIBUTE values.
  SHOW CONTROL	Display control-character prefixing map.
* SHOW FILE	Display file-related settings.
  SHOW PROTOCOL	Display protocol-related settings.
  SHOW LANGUAGE	Display language-related settings.
  SHOW TRANSMIT	Display SET TRANSMIT values.
* STATISTICS	Display statistics about most recent file transfer.
  TRANSMIT	Send a file with no error checking.
  XMIT	Synonym for TRANSMIT.
.sp
SEND Command switches:
  /AS-NAME:	Name to send file under
  /AFTER:	Send files modified after date-time
  /BEFORE:	Send files modified before date-time
  /BINARY	Send in binary mode
  /COMMAND	Send from standard output of a command
  /DELETE	Delete file after successfully sending
  /EXCEPT:	Don't send files whose names match given pattern(s)
  /FILTER:	Pass file contents through given filter program
  /FILENAMES:	Specify how to send filenames
  /LARGER-THAN:	Send files larger than given size
  /LIST:	Send files whose names are listed in given file
  /MAIL:	Send file(s) as e-mail to given address
  /MOVE-TO:	Move source file to given directory after successfully sending