Bj”rn Felten -> All skrev 2014-11-07 01:05:
 BF> Document: FTS-0001
 BF> Version: 17
 BF> Date: 06-Nov-2014

 BF> A Basic FidoNet Technical Standard
 BF> Revision 17

 BF> Introduction

 BF> This document defines the data structures which a FidoNet
 BF> implementation must provide.



 BF> 1. Basic Requirements for a FidoNet Implementation

 BF> A FidoNet implementation must be able to call other nodes and
 BF> transfer messages and files in both directions. This includes pickup
 BF> and poll. A FidoNet implementation must be able to accept calls from
 BF> other nodes and transfer messages and files in both directions. This
 BF> includes pickup.


 BF> 2. Data Description

 BF> (* literals *)
 BF> "ABC" - ASCII character string, no termination implied
 BF> nnH - byte in hexadecimal

 BF> (* terminals *)
 BF> someName - 16-bit integer (little endian)
 BF> someName[n] - field of n bytes
 BF> someName[.n] - field of n bits
 BF> someName(n) - Null terminated string allocated n-1 chars
 BF> someName{max} - Null terminated string of up to max-1 chars

 BF> (* punctuation *)
 BF> a b - one 'a' followed by one 'b'
 BF> ( a | b ) - either 'a' or 'b', but not both
 BF> { a } - zero or more 'a's
 BF> [ b ] - zero or one 'b'
 BF> (* comment *) - ignored

 BF> (* predeclared constant *)
 BF> Null = 00H



 BF> a. The message format

 BF> Offset
 BF> dec hex
 BF> .-----------------------------------------------.
 BF> 0 0 | |
 BF> ~ fromUserName ~
 BF> | 36 bytes |
 BF> +-----------------------+-----------------------+
 BF> 36 24 | |
 BF> ~ toUserName ~
 BF> | 36 bytes |
 BF> +-----------------------+-----------------------+
 BF> 72 48 | |
 BF> ~ subject ~
 BF> | 72 bytes |
 BF> +-----------------------+-----------------------+
 BF> 144 90 | |
 BF> ~ DateTime ~
 BF> | 20 bytes |
 BF> +-----------------------+-----------------------+
 BF> 164 A4 | timesRead (low order) | timesRead (high order)|
 BF> +-----------------------+-----------------------+
 BF> 166 A6 | destNode (low order) | destNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 168 A8 | origNode (low order) | origNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 170 AA | cost (low order) | cost (high order) |
 BF> +-----------------------+-----------------------+
 BF> 172 AC | origNet (low order) | origNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 174 AE | destNet (low order) | destNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 176 B0 | destZone (optional) | destZone (optional) |
 BF> +-----------------------+-----------------------+
 BF> 178 B2 | origZone (optional) | origZone (optional) |
 BF> +-----------------------+-----------------------+
 BF> 180 B4 | destPoint(optional) | destPoint(optional) |
 BF> +-----------------------+-----------------------+
 BF> 182 B6 | origPoint(optional) | origPoint(optional) |
 BF> +-----------------------+-----------------------+
 BF> 184 B8 | replyTo (low order) | replyTo (high order) |
 BF> +-----------------------+-----------------------+
 BF> 186 BA | Attribute (low order) | Attribute (high order)|
 BF> +-----------------------+-----------------------+
 BF> 188 BC | nextReply (low order) | nextReply (high order)|
 BF> +-----------------------+-----------------------+
 BF> 190 BE | text |
 BF> ~ unbounded ~
 BF> | null terminated |
 BF> `-----------------------------------------------'

 BF> Message = fromUserName(36) (* Null terminated *)
 BF> toUserName(36) (* Null terminated *)
 BF> subject(72) (* see FileList below *)
 BF> DateTime (* last edited *)
 BF> timesRead (* not used *)
 BF> destNode (* of message *)
 BF> origNode (* of message *)
 BF> cost (* not used *)
 BF> origNet (* of message *)
 BF> destNet (* of message *)
 BF> destZone (* of message *)
 BF> origZone (* of message *)
 BF> destPoint (* of message *)
 BF> origPoint (* of message *)
 BF> replyTo (* not used *)
 BF> AttributeWord
 BF> nextReply (* not used *)
 BF> text(unbounded) (* Null terminated *)

 BF> DateTime = (* a character string 20 characters long *)
 BF> (* 01 Jan 86 02:34:56 *)
 BF> DayOfMonth " " Month " " Year " "
 BF> " " HH ":" MM ":" SS
 BF> Null

 BF> DayOfMonth = "01" | "02" | "03" | ... | "31"
 BF> Month = "Jan" | "Feb" | "Mar" | "Apr" | "May" | "Jun" |
 BF> "Jul" | "Aug" | "Sep" | "Oct" | "Nov" | "Dec"
 BF> Year = "01" | "02" | .. | "85" | "86" | ... | "99" | "00"
 BF> HH = "00" | .. | "23"
 BF> MM = "00" | .. | "59"
 BF> SS = "00" | .. | "59"

 BF> AttributeWord bit meaning
 BF> --- --------------------
 BF> 0 + Private
 BF> 1 + s Crash
 BF> 2 Recd
 BF> 3 Sent
 BF> 4 + FileAttached
 BF> 5 InTransit
 BF> 6 Orphan
 BF> 7 KillSent
 BF> 8 Local
 BF> 9 s HoldForPickup
 BF> 10 + unused
 BF> 11 s FileRequest
 BF> 12 + s ReturnReceiptRequest
 BF> 13 + s IsReturnReceipt
 BF> 14 + s AuditRequest
 BF> 15 s FileUpdateReq

 BF> s - need not be recognized, but it's ok
 BF> + - not zeroed before packeting

 BF> Bits numbers ascend with arithmetic significance of bit position.

 BF> Message text is unbounded and null terminated (note exception below).

 BF> A 'hard' carriage return, 0DH, marks the end of a paragraph, and must
 BF> be preserved.

 BF> So called 'soft' carriage returns, 8DH, may mark a previous
 BF> processor's automatic line wrap, and should be ignored.

 BF> All linefeeds, 0AH, should be ignored.

 BF> If the first character of a physical line (e.g. the first character
 BF> of the message text, or the character immediately after a hard
 BF> carriage return (ignoring any linefeeds)) is a ^A (, 01H),
 BF> then that line is not displayed as it contains control information.
 BF> The convention for such control lines is:

 BF> o They begin with ^A
 BF> o They end at the end of the physical line (i.e. ignore soft s).
 BF> o They begin with a keyword followed by a colon.
 BF> o The keywords are uniquely assigned to applications.
 BF> o They keyword/colon pair is followed by application specific data.



 BF> b. File Specifications

 BF> If one or more of FileAttached, FileRequest, or FileUpdateReq are
 BF> asserted in an AttributeWord, the subject{72} field is interpreted as
 BF> a list of file specifications which may include wildcards and other
 BF> system-dependent data. This list is of the form

 BF> FileList = [ FileSpec { Sep FileSpec } ] Null

 BF> FileSpec = (* implementation dependent file specification. may
 BF> not contain Null or any of the characters in Sep. *)

 BF> Sep = ( " " | "," ) { " " }



 BF> c. The Packed Message format

 BF> To conserve space and eliminate fields which would be meaningless if
 BF> sent (e.g. timesRead), messages are packed for transmission. As this
 BF> is a data structure which is actually transferred, its definition is
 BF> critical to FidoNet. A packed message has a number of fixed length
 BF> fields followed by four null terminated strings.

 BF> Offset
 BF> dec hex
 BF> .-----------------------------------------------.
 BF> 0 0 | 0 | 2 | 0 | 0 |
 BF> +-----------------------+-----------------------+
 BF> 2 2 | origNode (low order) | origNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 4 4 | destNode (low order) | destNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 6 6 | origNet (low order) | origNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 8 8 | destNet (low order) | destNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 10 A | Attribute (low order) | Attribute (high order)|
 BF> +-----------------------+-----------------------+
 BF> 12 C | cost (low order) | cost (high order) |
 BF> +-----------------------+-----------------------+
 BF> 14 E | |
 BF> ~ DateTime ~
 BF> | 20 bytes |
 BF> +-----------------------+-----------------------+
 BF> 34 22 | toUserName |
 BF> ~ max 36 bytes ~
 BF> | null terminated |
 BF> +-----------------------+-----------------------+
 BF> | fromUserName |
 BF> ~ max 36 bytes ~
 BF> | null terminated |
 BF> +-----------------------+-----------------------+
 BF> | subject |
 BF> ~ max 72 bytes ~
 BF> | null terminated |
 BF> +-----------------------+-----------------------+
 BF> | text |
 BF> ~ unbounded ~
 BF> | null terminated |
 BF> `-----------------------------------------------'

 BF> PakdMessage = 02H 00H (* message type *)
 BF> origNode (* of message *)
 BF> destNode (* of message *)
 BF> origNet (* of message *)
 BF> destNet (* of message *)
 BF> AttributeWord
 BF> cost (* not used *)
 BF> DateTime (* message last edited *)
 BF> toUserName{36} (* Null terminated *)
 BF> fromUserName{36} (* Null terminated *)
 BF> subject{72} (* Null terminated *)
 BF> text{unbounded} (* Null terminated *)



 BF> d. The Packet Header format

 BF> The packet contains messages in packed format to be transferred over
 BF> the net during a connection. As this data structure is transferred,
 BF> its definition is critical to FidoNet.

 BF> A packet may contain zero or more packed messages. A packet without
 BF> messages is often generated as a poll packet.

 BF> Every packet begins with a packet header. The fields of the packet
 BF> header are of fixed length.

 BF> Offset
 BF> dec hex
 BF> .-----------------------------------------------.
 BF> 0 0 | origNode (low order) | origNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 2 2 | destNode (low order) | destNode (high order) |
 BF> +-----------------------+-----------------------+
 BF> 4 4 | year (low order) | year (high order) |
 BF> +-----------------------+-----------------------+
 BF> 6 6 | month (low order) | month (high order) |
 BF> +-----------------------+-----------------------+
 BF> 8 8 | day (low order) | day (high order) |
 BF> +-----------------------+-----------------------+
 BF> 10 A | hour (low order) | hour (high order) |
 BF> +-----------------------+-----------------------+
 BF> 12 C | minute (low order) | minute (high order) |
 BF> +-----------------------+-----------------------+
 BF> 14 E | second (low order) | second (high order) |
 BF> +-----------------------+-----------------------+
 BF> 16 10 | baud (low order) | baud (high order) |
 BF> +-----------------------+-----------------------+
 BF> 18 12 | 0 | 2 | 0 | 0 |
 BF> +-----------------------+-----------------------+
 BF> 20 14 | origNet (low order) | origNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 22 16 | destNet (low order) | destNet (high order) |
 BF> +-----------------------+-----------------------+
 BF> 24 18 | prodCode | serialNo |
 BF> +-----------------------+-----------------------+
 BF> 26 1A | |
 BF> | password (some impls) |
 BF> | eight bytes |
 BF> | null padded |
 BF> | |
 BF> +-----------------------+-----------------------+
 BF> 34 22 | origZone (low) (opt) | origZone (high) (opt) |
 BF> +-----------------------+-----------------------+
 BF> 36 24 | destZone (low) (opt) | destZone (high) (opt) |
 BF> +-----------------------+-----------------------+
 BF> 38 26 | fill |
 BF> ~ 20 bytes ~
 BF> | |
 BF> +-----------------------+-----------------------+
 BF> 58 3A | zero or more |
 BF> ~ packed ~
 BF> | messages |
 BF> +-----------------------+-----------------------+
 BF> | 0 | 0 | 0 | 0 |
 BF> `-----------------------+-----------------------'


 BF> Packet = PacketHeader { PakdMessage } 00H 00H

 BF> PacketHeader = origNode (* of packet *)
 BF> destNode (* of packet *)
 BF> year (* of packet creation, yyyy *)
 BF> month (* of packet creation, 0-11 *)
 BF> day (* of packet creation, 1-31 *)
 BF> hour (* of packet creation, 0-23 *)
 BF> minute (* of packet creation, 0-59 *)
 BF> second (* of packet creation, 0-59 *)
 BF> baud (* not used *)
 BF> PacketType (* 02H 00H *)
 BF> origNet (* of packet *)
 BF> destNet (* of packet *)
 BF> prodCode (* write to FTSC for one *)
 BF> serialNo (* binary serial number (or null)*)
 BF> password (* session password (or null) *)
 BF> origZone (* zone of pkt sender (or null) *)
 BF> destZone (* zone of pkt receiver (or null)*)
 BF> fill[20]


 BF> The remainder of the packet consists of packed messages. Each packed
 BF> message begins with a message type word 0200H. A pseudo-message
 BF> beginning with the word 0000H signifies the end of the packet.

 BF> --- Mozilla/5.0 (Windows; U; Windows NT 5.1; sv-SE; rv:1.9.1.16)
 BF> Gecko/20101125


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--- Mozilla/5.0 (Windows; U; Windows NT 5.1; sv-SE; rv:1.9.1.16) Gecko/20101125