As per Relevance of the word requests, we have this rfc below:





Revised Telnet Status
NIC 31154 (25 Oct. 74)
Request for Comments: 651
D. Crocker (UCLA-NMC) 25 Oct. 74
RFC# 651
Online file: <[ISI]STATUS-OPTION-REVISION.


Revised Telnet Status
1. Command name and
STATUS 5
2. Command
As described in the NAOL and NAOP option specifications, this option
to a simplex connection
IAC DO STATUS
Sender of DO wishes to be able to send requests for status-of-options
information, or confirms that he is willing to send such requests
IAC WILL STATUS
Sender of WILL wishes or agrees to send status information,
spontaneously or in response to future requests
IAC DON'T STATUS
Sender refuses to carry on any further discussion of the current
status of options
IAC WON'T STATUS
Sender refuses to carry on any further discussion of the current
status of options
IAC SB STATUS SEND IAC
Sender requests receiver to transmit his (the receiver's) perception
of the current status of Telnet options. The code for SEND is 1. (See
below.)
IAC SB STATUS IS ... IAC SE
Sender is stating his perception of the current status of Telnet
options. The code for IS is 0. (See below.)
3.
DON'T STATUS/WON'T STATUS. That is, the current status of options will not
be discussed
4. Motivation for the
This option allows a user/process to verify the current status of Telnet
options (e.g., echoing) as viewed by the person/process on the other end of
the Telnet connection. Simply renegotiating options could lead to the
nonterminating request loop problem discussed in (NIC #16237). The changes
to the option, described in this paper, allow STATUS to fit into the normal
structure of Telnet options, by deferring the actual transfer of status
information to the SB command. Additionally, the numbers of bytes that must
be sent to describe the state of the options has been considerably reduced
5. Description of the
WILL/DO are now used only to obtain and grant permission for future
discussion. The actual exchange of status information occurs within option
subcommands (IAC SB STATUS...).
Once the two hosts have exchanged a WILL and a DO, the sender of the WILL
STATUS is free to transmit status information, spontaneously or in response
to a request from the sender of the DO. At worst, this may lead to
transmitting the information twice. Only the sender of the DO may send
requests (IAC SB STATUS SEND IAC SE) and only the sender of the WILL may
transmit actual status information (within an IAC SB STATUS IS ... IAC SE
command).
IS has the subcommands WILL, DO and SB. They are used EXACTLY as used
the actual negotiation of Telnet options, except that SB is terminated with
SE, rather than IAC SE. Transmission of SE, as a regular data byte, is
accomplished by doubling the byte (SE SE). Options that are not explicitly
described are assumed to be in their default states. A single IAC SB STATUS
IS ... IAC SE describes the condition of ALL options
The following is an example of use of the option
Host1: IAC DO
Host2: IAC WILL
(Host2 is now free to send status information at any time.
Solicitations from Host1 are NOT necessary. This should not produce
any dangerous race conditions. At worst, two IS's will be sent
Host1 (perhaps): IAC SB STATUS SEND IAC
Host2 (the following stream is broken into multiple lines only for
readability. No carriage returns are implied.):
IAC SB STATUS
WILL
DO SUPPRESS-GO-
WILL
DO
WILL
SB RCTE <11><1><24>
DO
SB NAOL DS <66>
IAC
Explanation of Host2's perceptions: It is responsible for echoing back
the data characters it receives over the Telnet connection; it will not
send Go-Ahead signals; it will both issue and request Status information
it will send instruction for controlling the other side's terminal
printer; it will discuss the line width for data it is sending







if you see any problems within the linking, don't worry be happy,
this is version 0.1 of the Relevance System and you gotta expect some crappy subroutines sometimes,
just be content we did not write this in Java, which would have made this "bigger and better" HAHAHHA.




RFC documents can be found at I.E.T.F.



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