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diff --git a/crypto/kerberosIV/man/telnet.1 b/crypto/kerberosIV/man/telnet.1 deleted file mode 100644 index 962783f..0000000 --- a/crypto/kerberosIV/man/telnet.1 +++ /dev/null @@ -1,1373 +0,0 @@ -.\" Copyright (c) 1983, 1990, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. All advertising materials mentioning features or use of this software -.\" must display the following acknowledgement: -.\" This product includes software developed by the University of -.\" California, Berkeley and its contributors. -.\" 4. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" @(#)telnet.1 8.6 (Berkeley) 6/1/94 -.\" -.Dd June 1, 1994 -.Dt TELNET 1 -.Os BSD 4.2 -.Sh NAME -.Nm telnet -.Nd user interface to the -.Tn TELNET -protocol -.Sh SYNOPSIS -.Nm telnet -.Op Fl 78EFKLacdfrx -.Op Fl S Ar tos -.Op Fl X Ar authtype -.Op Fl e Ar escapechar -.Op Fl k Ar realm -.Op Fl l Ar user -.Op Fl n Ar tracefile -.Oo -.Ar host -.Op port -.Oc -.Sh DESCRIPTION -The -.Nm telnet -command -is used to communicate with another host using the -.Tn TELNET -protocol. -If -.Nm telnet -is invoked without the -.Ar host -argument, it enters command mode, -indicated by its prompt -.Pq Nm telnet\&> . -In this mode, it accepts and executes the commands listed below. -If it is invoked with arguments, it performs an -.Ic open -command with those arguments. -.Pp -Options: -.Bl -tag -width indent -.It Fl 8 -Specifies an 8-bit data path. This causes an attempt to -negotiate the -.Dv TELNET BINARY -option on both input and output. -.It Fl 7 -Do not try to negotiate -.Dv TELNET BINARY -option. -.It Fl E -Stops any character from being recognized as an escape character. -.It Fl F -If Kerberos V5 authentication is being used, the -.Fl F -option allows the local credentials to be forwarded -to the remote system, including any credentials that -have already been forwarded into the local environment. -.It Fl K -Specifies no automatic login to the remote system. -.It Fl L -Specifies an 8-bit data path on output. This causes the -BINARY option to be negotiated on output. -.It Fl S Ar tos -Sets the IP type-of-service (TOS) option for the telnet -connection to the value -.Ar tos , -which can be a numeric TOS value -or, on systems that support it, a symbolic -TOS name found in the /etc/iptos file. -.It Fl X Ar atype -Disables the -.Ar atype -type of authentication. -.It Fl a -Attempt automatic login. -Currently, this sends the user name via the -.Ev USER -variable -of the -.Ev ENVIRON -option if supported by the remote system. -The name used is that of the current user as returned by -.Xr getlogin 2 -if it agrees with the current user ID, -otherwise it is the name associated with the user ID. -.It Fl c -Disables the reading of the user's -.Pa \&.telnetrc -file. (See the -.Ic toggle skiprc -command on this man page.) -.It Fl d -Sets the initial value of the -.Ic debug -toggle to -.Dv TRUE -.It Fl e Ar escape char -Sets the initial -.Nm -.Nm telnet -escape character to -.Ar escape char . -If -.Ar escape char -is omitted, then -there will be no escape character. -.It Fl f -If Kerberos V5 authentication is being used, the -.Fl f -option allows the local credentials to be forwarded to the remote system. -.ne 1i -.It Fl k Ar realm -If Kerberos authentication is being used, the -.Fl k -option requests that telnet obtain tickets for the remote host in -realm realm instead of the remote host's realm, as determined -by -.Xr krb_realmofhost 3 . -.It Fl l Ar user -When connecting to the remote system, if the remote system -understands the -.Ev ENVIRON -option, then -.Ar user -will be sent to the remote system as the value for the variable USER. -This option implies the -.Fl a -option. -This option may also be used with the -.Ic open -command. -.It Fl n Ar tracefile -Opens -.Ar tracefile -for recording trace information. -See the -.Ic set tracefile -command below. -.It Fl r -Specifies a user interface similar to -.Xr rlogin 1 . -In this -mode, the escape character is set to the tilde (~) character, -unless modified by the -e option. -.It Fl x -Turns on encryption of the data stream if possible. This is -currently the default and when it fails a warning is issued. -.It Ar host -Indicates the official name, an alias, or the Internet address -of a remote host. -.It Ar port -Indicates a port number (address of an application). If a number is -not specified, the default -.Nm telnet -port is used. -.El -.Pp -When in rlogin mode, a line of the form ~. disconnects from the -remote host; ~ is the telnet escape character. -Similarly, the line ~^Z suspends the telnet session. -The line ~^] escapes to the normal telnet escape prompt. -.Pp -Once a connection has been opened, -.Nm telnet -will attempt to enable the -.Dv TELNET LINEMODE -option. -If this fails, then -.Nm telnet -will revert to one of two input modes: -either \*(Lqcharacter at a time\*(Rq -or \*(Lqold line by line\*(Rq -depending on what the remote system supports. -.Pp -When -.Dv LINEMODE -is enabled, character processing is done on the -local system, under the control of the remote system. When input -editing or character echoing is to be disabled, the remote system -will relay that information. The remote system will also relay -changes to any special characters that happen on the remote -system, so that they can take effect on the local system. -.Pp -In \*(Lqcharacter at a time\*(Rq mode, most -text typed is immediately sent to the remote host for processing. -.Pp -In \*(Lqold line by line\*(Rq mode, all text is echoed locally, -and (normally) only completed lines are sent to the remote host. -The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used -to turn off and on the local echo -(this would mostly be used to enter passwords -without the password being echoed). -.Pp -If the -.Dv LINEMODE -option is enabled, or if the -.Ic localchars -toggle is -.Dv TRUE -(the default for \*(Lqold line by line\*(Lq; see below), -the user's -.Ic quit , -.Ic intr , -and -.Ic flush -characters are trapped locally, and sent as -.Tn TELNET -protocol sequences to the remote side. -If -.Dv LINEMODE -has ever been enabled, then the user's -.Ic susp -and -.Ic eof -are also sent as -.Tn TELNET -protocol sequences, -and -.Ic quit -is sent as a -.Dv TELNET ABORT -instead of -.Dv BREAK -There are options (see -.Ic toggle -.Ic autoflush -and -.Ic toggle -.Ic autosynch -below) -which cause this action to flush subsequent output to the terminal -(until the remote host acknowledges the -.Tn TELNET -sequence) and flush previous terminal input -(in the case of -.Ic quit -and -.Ic intr ) . -.Pp -While connected to a remote host, -.Nm telnet -command mode may be entered by typing the -.Nm telnet -\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq). -When in command mode, the normal terminal editing conventions are available. -.Pp -The following -.Nm telnet -commands are available. -Only enough of each command to uniquely identify it need be typed -(this is also true for arguments to the -.Ic mode , -.Ic set , -.Ic toggle , -.Ic unset , -.Ic slc , -.Ic environ , -and -.Ic display -commands). -.Pp -.Bl -tag -width "mode type" -.It Ic auth Ar argument ... -The auth command manipulates the information sent through the -.Dv TELNET AUTHENTICATE -option. Valid arguments for the -auth command are as follows: -.Bl -tag -width "disable type" -.It Ic disable Ar type -Disables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth disable ?\& -command. -.It Ic enable Ar type -Enables the specified type of authentication. To -obtain a list of available types, use the -.Ic auth enable ?\& -command. -.It Ic status -Lists the current status of the various types of -authentication. -.El -.It Ic close -Close a -.Tn TELNET -session and return to command mode. -.It Ic display Ar argument ... -Displays all, or some, of the -.Ic set -and -.Ic toggle -values (see below). -.It Ic encrypt Ar argument ... -The encrypt command manipulates the information sent through the -.Dv TELNET ENCRYPT -option. -.Pp -Note: Because of export controls, the -.Dv TELNET ENCRYPT -option is not supported outside of the United States and Canada. -.Pp -Valid arguments for the encrypt command are as follows: -.Bl -tag -width Ar -.It Ic disable Ar type Xo -.Op Cm input | output -.Xc -Disables the specified type of encryption. If you -omit the input and output, both input and output -are disabled. To obtain a list of available -types, use the -.Ic encrypt disable ?\& -command. -.It Ic enable Ar type Xo -.Op Cm input | output -.Xc -Enables the specified type of encryption. If you -omit input and output, both input and output are -enabled. To obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic input -This is the same as the -.Ic encrypt start input -command. -.It Ic -input -This is the same as the -.Ic encrypt stop input -command. -.It Ic output -This is the same as the -.Ic encrypt start output -command. -.It Ic -output -This is the same as the -.Ic encrypt stop output -command. -.It Ic start Op Cm input | output -Attempts to start encryption. If you omit -.Ic input -and -.Ic output , -both input and output are enabled. To -obtain a list of available types, use the -.Ic encrypt enable ?\& -command. -.It Ic status -Lists the current status of encryption. -.It Ic stop Op Cm input | output -Stops encryption. If you omit input and output, -encryption is on both input and output. -.It Ic type Ar type -Sets the default type of encryption to be used -with later -.Ic encrypt start -or -.Ic encrypt stop -commands. -.El -.It Ic environ Ar arguments ... -The -.Ic environ -command is used to manipulate the -the variables that my be sent through the -.Dv TELNET ENVIRON -option. -The initial set of variables is taken from the users -environment, with only the -.Ev DISPLAY -and -.Ev PRINTER -variables being exported by default. -The -.Ev USER -variable is also exported if the -.Fl a -or -.Fl l -options are used. -.br -Valid arguments for the -.Ic environ -command are: -.Bl -tag -width Fl -.It Ic define Ar variable value -Define the variable -.Ar variable -to have a value of -.Ar value . -Any variables defined by this command are automatically exported. -The -.Ar value -may be enclosed in single or double quotes so -that tabs and spaces may be included. -.It Ic undefine Ar variable -Remove -.Ar variable -from the list of environment variables. -.It Ic export Ar variable -Mark the variable -.Ar variable -to be exported to the remote side. -.It Ic unexport Ar variable -Mark the variable -.Ar variable -to not be exported unless -explicitly asked for by the remote side. -.It Ic list -List the current set of environment variables. -Those marked with a -.Cm * -will be sent automatically, -other variables will only be sent if explicitly requested. -.It Ic ?\& -Prints out help information for the -.Ic environ -command. -.El -.It Ic logout -Sends the -.Dv TELNET LOGOUT -option to the remote side. -This command is similar to a -.Ic close -command; however, if the remote side does not support the -.Dv LOGOUT -option, nothing happens. -If, however, the remote side does support the -.Dv LOGOUT -option, this command should cause the remote side to close the -.Tn TELNET -connection. -If the remote side also supports the concept of -suspending a user's session for later reattachment, -the logout argument indicates that you -should terminate the session immediately. -.It Ic mode Ar type -.Ar Type -is one of several options, depending on the state of the -.Tn TELNET -session. -The remote host is asked for permission to go into the requested mode. -If the remote host is capable of entering that mode, the requested -mode will be entered. -.Bl -tag -width Ar -.It Ic character -Disable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then enter \*(Lqcharacter at a time\*(Lq mode. -.It Ic line -Enable the -.Dv TELNET LINEMODE -option, or, if the remote side does not understand the -.Dv LINEMODE -option, then attempt to enter \*(Lqold-line-by-line\*(Lq mode. -.It Ic isig Pq Ic \-isig -Attempt to enable (disable) the -.Dv TRAPSIG -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic edit Pq Ic \-edit -Attempt to enable (disable) the -.Dv EDIT -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic softtabs Pq Ic \-softtabs -Attempt to enable (disable) the -.Dv SOFT_TAB -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.ne 1i -.It Ic litecho Pq Ic \-litecho -Attempt to enable (disable) the -.Dv LIT_ECHO -mode of the -.Dv LINEMODE -option. -This requires that the -.Dv LINEMODE -option be enabled. -.It Ic ?\& -Prints out help information for the -.Ic mode -command. -.El -.It Xo -.Ic open Ar host -.Op Fl l Ar user -.Op Oo Fl Oc Ns Ar port -.Xc -Open a connection to the named host. -If no port number -is specified, -.Nm telnet -will attempt to contact a -.Tn TELNET -server at the default port. -The host specification may be either a host name (see -.Xr hosts 5 ) -or an Internet address specified in the \*(Lqdot notation\*(Rq (see -.Xr inet 3 ) . -The -.Op Fl l -option may be used to specify the user name -to be passed to the remote system via the -.Ev ENVIRON -option. -When connecting to a non-standard port, -.Nm telnet -omits any automatic initiation of -.Tn TELNET -options. When the port number is preceded by a minus sign, -the initial option negotiation is done. -After establishing a connection, the file -.Pa \&.telnetrc -in the -users home directory is opened. Lines beginning with a # are -comment lines. Blank lines are ignored. Lines that begin -without white space are the start of a machine entry. The -first thing on the line is the name of the machine that is -being connected to. The rest of the line, and successive -lines that begin with white space are assumed to be -.Nm telnet -commands and are processed as if they had been typed -in manually to the -.Nm telnet -command prompt. -.It Ic quit -Close any open -.Tn TELNET -session and exit -.Nm telnet . -An end of file (in command mode) will also close a session and exit. -.It Ic send Ar arguments -Sends one or more special character sequences to the remote host. -The following are the arguments which may be specified -(more than one argument may be specified at a time): -.Pp -.Bl -tag -width escape -.It Ic abort -Sends the -.Dv TELNET ABORT -(Abort -processes) -sequence. -.It Ic ao -Sends the -.Dv TELNET AO -(Abort Output) sequence, which should cause the remote system to flush -all output -.Em from -the remote system -.Em to -the user's terminal. -.It Ic ayt -Sends the -.Dv TELNET AYT -(Are You There) -sequence, to which the remote system may or may not choose to respond. -.It Ic brk -Sends the -.Dv TELNET BRK -(Break) sequence, which may have significance to the remote -system. -.It Ic ec -Sends the -.Dv TELNET EC -(Erase Character) -sequence, which should cause the remote system to erase the last character -entered. -.It Ic el -Sends the -.Dv TELNET EL -(Erase Line) -sequence, which should cause the remote system to erase the line currently -being entered. -.It Ic eof -Sends the -.Dv TELNET EOF -(End Of File) -sequence. -.It Ic eor -Sends the -.Dv TELNET EOR -(End of Record) -sequence. -.It Ic escape -Sends the current -.Nm telnet -escape character (initially \*(Lq^\*(Rq). -.It Ic ga -Sends the -.Dv TELNET GA -(Go Ahead) -sequence, which likely has no significance to the remote system. -.It Ic getstatus -If the remote side supports the -.Dv TELNET STATUS -command, -.Ic getstatus -will send the subnegotiation to request that the server send -its current option status. -.ne 1i -.It Ic ip -Sends the -.Dv TELNET IP -(Interrupt Process) sequence, which should cause the remote -system to abort the currently running process. -.It Ic nop -Sends the -.Dv TELNET NOP -(No OPeration) -sequence. -.It Ic susp -Sends the -.Dv TELNET SUSP -(SUSPend process) -sequence. -.It Ic synch -Sends the -.Dv TELNET SYNCH -sequence. -This sequence causes the remote system to discard all previously typed -(but not yet read) input. -This sequence is sent as -.Tn TCP -urgent -data (and may not work if the remote system is a -.Bx 4.2 -system -- if -it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal). -.It Ic do Ar cmd -.It Ic dont Ar cmd -.It Ic will Ar cmd -.It Ic wont Ar cmd -Sends the -.Dv TELNET DO -.Ar cmd -sequence. -.Ar Cmd -can be either a decimal number between 0 and 255, -or a symbolic name for a specific -.Dv TELNET -command. -.Ar Cmd -can also be either -.Ic help -or -.Ic ?\& -to print out help information, including -a list of known symbolic names. -.It Ic ?\& -Prints out help information for the -.Ic send -command. -.El -.It Ic set Ar argument value -.It Ic unset Ar argument value -The -.Ic set -command will set any one of a number of -.Nm telnet -variables to a specific value or to -.Dv TRUE . -The special value -.Ic off -turns off the function associated with -the variable, this is equivalent to using the -.Ic unset -command. -The -.Ic unset -command will disable or set to -.Dv FALSE -any of the specified functions. -The values of variables may be interrogated with the -.Ic display -command. -The variables which may be set or unset, but not toggled, are -listed here. In addition, any of the variables for the -.Ic toggle -command may be explicitly set or unset using -the -.Ic set -and -.Ic unset -commands. -.Bl -tag -width escape -.It Ic ayt -If -.Tn TELNET -is in localchars mode, or -.Dv LINEMODE -is enabled, and the status character is typed, a -.Dv TELNET AYT -sequence (see -.Ic send ayt -preceding) is sent to the -remote host. The initial value for the "Are You There" -character is the terminal's status character. -.It Ic echo -This is the value (initially \*(Lq^E\*(Rq) which, when in -\*(Lqline by line\*(Rq mode, toggles between doing local echoing -of entered characters (for normal processing), and suppressing -echoing of entered characters (for entering, say, a password). -.It Ic eof -If -.Nm telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Rq mode, entering this character -as the first character on a line will cause this character to be -sent to the remote system. -The initial value of the eof character is taken to be the terminal's -.Ic eof -character. -.It Ic erase -If -.Nm telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Sy and -if -.Nm telnet -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EC -sequence (see -.Ic send -.Ic ec -above) -is sent to the remote system. -The initial value for the erase character is taken to be -the terminal's -.Ic erase -character. -.It Ic escape -This is the -.Nm telnet -escape character (initially \*(Lq^[\*(Rq) which causes entry -into -.Nm telnet -command mode (when connected to a remote system). -.It Ic flushoutput -If -.Nm telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic flushoutput -character is typed, a -.Dv TELNET AO -sequence (see -.Ic send -.Ic ao -above) -is sent to the remote host. -The initial value for the flush character is taken to be -the terminal's -.Ic flush -character. -.It Ic forw1 -.It Ic forw2 -If -.Tn TELNET -is operating in -.Dv LINEMODE , -these are the -characters that, when typed, cause partial lines to be -forwarded to the remote system. The initial value for -the forwarding characters are taken from the terminal's -eol and eol2 characters. -.It Ic interrupt -If -.Nm telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic interrupt -character is typed, a -.Dv TELNET IP -sequence (see -.Ic send -.Ic ip -above) -is sent to the remote host. -The initial value for the interrupt character is taken to be -the terminal's -.Ic intr -character. -.It Ic kill -If -.Nm telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below), -.Ic and -if -.Nm telnet -is operating in \*(Lqcharacter at a time\*(Rq mode, then when this -character is typed, a -.Dv TELNET EL -sequence (see -.Ic send -.Ic el -above) -is sent to the remote system. -The initial value for the kill character is taken to be -the terminal's -.Ic kill -character. -.It Ic lnext -If -.Nm telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq mode, then this character is taken to -be the terminal's -.Ic lnext -character. -The initial value for the lnext character is taken to be -the terminal's -.Ic lnext -character. -.It Ic quit -If -.Nm telnet -is in -.Ic localchars -mode (see -.Ic toggle -.Ic localchars -below) -and the -.Ic quit -character is typed, a -.Dv TELNET BRK -sequence (see -.Ic send -.Ic brk -above) -is sent to the remote host. -The initial value for the quit character is taken to be -the terminal's -.Ic quit -character. -.It Ic reprint -If -.Nm telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq mode, then this character is taken to -be the terminal's -.Ic reprint -character. -The initial value for the reprint character is taken to be -the terminal's -.Ic reprint -character. -.It Ic rlogin -This is the rlogin escape character. -If set, the normal -.Tn TELNET -escape character is ignored unless it is -preceded by this character at the beginning of a line. -This character, at the beginning of a line followed by -a "." closes the connection; when followed by a ^Z it -suspends the telnet command. The initial state is to -disable the rlogin escape character. -.It Ic start -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic start -character. -The initial value for the kill character is taken to be -the terminal's -.Ic start -character. -.It Ic stop -If the -.Dv TELNET TOGGLE-FLOW-CONTROL -option has been enabled, -then this character is taken to -be the terminal's -.Ic stop -character. -The initial value for the kill character is taken to be -the terminal's -.Ic stop -character. -.It Ic susp -If -.Nm telnet -is in -.Ic localchars -mode, or -.Dv LINEMODE -is enabled, and the -.Ic suspend -character is typed, a -.Dv TELNET SUSP -sequence (see -.Ic send -.Ic susp -above) -is sent to the remote host. -The initial value for the suspend character is taken to be -the terminal's -.Ic suspend -character. -.ne 1i -.It Ic tracefile -This is the file to which the output, caused by -.Ic netdata -or -.Ic option -tracing being -.Dv TRUE , -will be written. If it is set to -.Dq Fl , -then tracing information will be written to standard output (the default). -.It Ic worderase -If -.Nm telnet -is operating in -.Dv LINEMODE -or \*(Lqold line by line\*(Lq mode, then this character is taken to -be the terminal's -.Ic worderase -character. -The initial value for the worderase character is taken to be -the terminal's -.Ic worderase -character. -.It Ic ?\& -Displays the legal -.Ic set -.Pq Ic unset -commands. -.El -.It Ic slc Ar state -The -.Ic slc -command (Set Local Characters) is used to set -or change the state of the the special -characters when the -.Dv TELNET LINEMODE -option has -been enabled. Special characters are characters that get -mapped to -.Tn TELNET -commands sequences (like -.Ic ip -or -.Ic quit ) -or line editing characters (like -.Ic erase -and -.Ic kill ) . -By default, the local special characters are exported. -.Bl -tag -width Fl -.It Ic check -Verify the current settings for the current special characters. -The remote side is requested to send all the current special -character settings, and if there are any discrepancies with -the local side, the local side will switch to the remote value. -.It Ic export -Switch to the local defaults for the special characters. The -local default characters are those of the local terminal at -the time when -.Nm telnet -was started. -.It Ic import -Switch to the remote defaults for the special characters. -The remote default characters are those of the remote system -at the time when the -.Tn TELNET -connection was established. -.It Ic ?\& -Prints out help information for the -.Ic slc -command. -.El -.It Ic status -Show the current status of -.Nm telnet . -This includes the peer one is connected to, as well -as the current mode. -.It Ic toggle Ar arguments ... -Toggle (between -.Dv TRUE -and -.Dv FALSE ) -various flags that control how -.Nm telnet -responds to events. -These flags may be set explicitly to -.Dv TRUE -or -.Dv FALSE -using the -.Ic set -and -.Ic unset -commands listed above. -More than one argument may be specified. -The state of these flags may be interrogated with the -.Ic display -command. -Valid arguments are: -.Bl -tag -width Ar -.It Ic authdebug -Turns on debugging information for the authentication code. -.It Ic autoflush -If -.Ic autoflush -and -.Ic localchars -are both -.Dv TRUE , -then when the -.Ic ao , -or -.Ic quit -characters are recognized (and transformed into -.Tn TELNET -sequences; see -.Ic set -above for details), -.Nm telnet -refuses to display any data on the user's terminal -until the remote system acknowledges (via a -.Dv TELNET TIMING MARK -option) -that it has processed those -.Tn TELNET -sequences. -The initial value for this toggle is -.Dv TRUE -if the terminal user had not -done an "stty noflsh", otherwise -.Dv FALSE -(see -.Xr stty 1 ) . -.It Ic autodecrypt -When the -.Dv TELNET ENCRYPT -option is negotiated, by -default the actual encryption (decryption) of the data -stream does not start automatically. The autoencrypt -(autodecrypt) command states that encryption of the -output (input) stream should be enabled as soon as -possible. -.sp -.Pp -Note: Because of export controls, the -.Dv TELNET ENCRYPT -option is not supported outside the United States and Canada. -.It Ic autologin -If the remote side supports the -.Dv TELNET AUTHENTICATION -option -.Tn TELNET -attempts to use it to perform automatic authentication. If the -.Dv AUTHENTICATION -option is not supported, the user's login -name are propagated through the -.Dv TELNET ENVIRON -option. -This command is the same as specifying -.Ar a -option on the -.Ic open -command. -.It Ic autosynch -If -.Ic autosynch -and -.Ic localchars -are both -.Dv TRUE , -then when either the -.Ic intr -or -.Ic quit -characters is typed (see -.Ic set -above for descriptions of the -.Ic intr -and -.Ic quit -characters), the resulting -.Tn TELNET -sequence sent is followed by the -.Dv TELNET SYNCH -sequence. -This procedure -.Ic should -cause the remote system to begin throwing away all previously -typed input until both of the -.Tn TELNET -sequences have been read and acted upon. -The initial value of this toggle is -.Dv FALSE . -.It Ic binary -Enable or disable the -.Dv TELNET BINARY -option on both input and output. -.It Ic inbinary -Enable or disable the -.Dv TELNET BINARY -option on input. -.It Ic outbinary -Enable or disable the -.Dv TELNET BINARY -option on output. -.It Ic crlf -If this is -.Dv TRUE , -then carriage returns will be sent as -.Li <CR><LF> . -If this is -.Dv FALSE , -then carriage returns will be send as -.Li <CR><NUL> . -The initial value for this toggle is -.Dv FALSE . -.It Ic crmod -Toggle carriage return mode. -When this mode is enabled, most carriage return characters received from -the remote host will be mapped into a carriage return followed by -a line feed. -This mode does not affect those characters typed by the user, only -those received from the remote host. -This mode is not very useful unless the remote host -only sends carriage return, but never line feed. -The initial value for this toggle is -.Dv FALSE . -.It Ic debug -Toggles socket level debugging (useful only to the -.Ic super user ) . -The initial value for this toggle is -.Dv FALSE . -.It Ic encdebug -Turns on debugging information for the encryption code. -.It Ic localchars -If this is -.Dv TRUE , -then the -.Ic flush , -.Ic interrupt , -.Ic quit , -.Ic erase , -and -.Ic kill -characters (see -.Ic set -above) are recognized locally, and transformed into (hopefully) appropriate -.Tn TELNET -control sequences -(respectively -.Ic ao , -.Ic ip , -.Ic brk , -.Ic ec , -and -.Ic el ; -see -.Ic send -above). -The initial value for this toggle is -.Dv TRUE -in \*(Lqold line by line\*(Rq mode, -and -.Dv FALSE -in \*(Lqcharacter at a time\*(Rq mode. -When the -.Dv LINEMODE -option is enabled, the value of -.Ic localchars -is ignored, and assumed to always be -.Dv TRUE . -If -.Dv LINEMODE -has ever been enabled, then -.Ic quit -is sent as -.Ic abort , -and -.Ic eof -and -.Ic suspend -are sent as -.Ic eof -and -.Ic susp , -see -.Ic send -above). -.It Ic netdata -Toggles the display of all network data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic options -Toggles the display of some internal -.Nm telnet -protocol processing (having to do with -.Tn TELNET -options). -The initial value for this toggle is -.Dv FALSE . -.ne 1i -.It Ic prettydump -When the -.Ic netdata -toggle is enabled, if -.Ic prettydump -is enabled the output from the -.Ic netdata -command will be formatted in a more user readable format. -Spaces are put between each character in the output, and the -beginning of any -.Tn TELNET -escape sequence is preceded by a '*' to aid in locating them. -.It Ic skiprc -When the skiprc toggle is -.Dv TRUE , -.Tn TELNET -skips the reading of the -.Pa \&.telnetrc -file in the users home -directory when connections are opened. The initial -value for this toggle is -.Dv FALSE . -.It Ic termdata -Toggles the display of all terminal data (in hexadecimal format). -The initial value for this toggle is -.Dv FALSE . -.It Ic verbose_encrypt -When the -.Ic verbose_encrypt -toggle is -.Dv TRUE , -.Tn TELNET -prints out a message each time encryption is enabled or -disabled. The initial value for this toggle is -.Dv FALSE . -Note: Because of export controls, data encryption -is not supported outside of the United States and Canada. -.It Ic \&? -Displays the legal -.Ic toggle -commands. -.El -.It Ic z -Suspend -.Nm telnet . -This command only works when the user is using the -.Xr csh 1 . -.It Ic \&! Op Ar command -Execute a single command in a subshell on the local -system. If -.Ic command -is omitted, then an interactive -subshell is invoked. -.It Ic ?\& Op Ar command -Get help. With no arguments, -.Nm telnet -prints a help summary. -If a command is specified, -.Nm telnet -will print the help information for just that command. -.El -.Sh ENVIRONMENT -.Nm Telnet -uses at least the -.Ev HOME , -.Ev SHELL , -.Ev DISPLAY , -and -.Ev TERM -environment variables. -Other environment variables may be propagated -to the other side via the -.Dv TELNET ENVIRON -option. -.Sh FILES -.Bl -tag -width ~/.telnetrc -compact -.It Pa ~/.telnetrc -user customized telnet startup values -.El -.Sh HISTORY -The -.Nm Telnet -command appeared in -.Bx 4.2 . -.Sh NOTES -.Pp -On some remote systems, echo has to be turned off manually when in -\*(Lqold line by line\*(Rq mode. -.Pp -In \*(Lqold line by line\*(Rq mode or -.Dv LINEMODE -the terminal's -.Ic eof -character is only recognized (and sent to the remote system) -when it is the first character on a line. |
