CTCP Version 1

Klaus Zeuge Troy Rollo Ben Mesander May 1993

The Client-To-Client Protocol (CTCP)
Version One

BASIC PROTOCOL BETWEEN CLIENTS AND SERVER

Characters between an Internet Relay Chat (IRC) client and server are 8 bit bytes (also known as octets) and can have numeric values from octal \000 to \377 inclusive (0 to 255 decimal). Some characters are special:

	CHARS  ::= '\000' .. '\377' 
	NUL    ::= '\000'
	NL     ::= '\n'
	CR     ::= '\r'

Note: `\' followed by three digits is used to denote an octal value in this paper. `\' followed by an alphabetic character is used to denote a C language style special character, and `..' denotes a range of characters.

A line sent to a server, or received from a server (here called "low level messages") consist or zero or more octets (expcept NUL, NL or CR) with either a NL or CR appended.

	L-CHARS	::= '\001' .. '\011' | '\013' | '\014' |
		    '\016' .. '\377'
	L-LINE	::= L-CHARS* CR LF

Note: The `*' is used here to denote "zero or more of the preceding class of characters", and the `|' is used to denote alternation.

A NUL is never sent to the server.

PREVIOUS PAGE | TABLE OF CONTENTS | NEXT PAGE

Comments about this page? Send them to webmaster (at) invlogic.com.

Return to Innovative Logic's Home Page.
Last modified: 17-Sep-2004 01:04PM.
Pages copyright ©1996-1997, Innovative Web Creations.
All rights reserved.