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<TITLE>Addessing Control Paragraphs.</TITLE>
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**********************************************************************
FTSC FIDONET TECHNICAL STANDARDS COMMITTEE
**********************************************************************
Publication: FTS-4001
Revision: 1
Title: ADDRESSING CONTROL PARAGRAPHS
Author(s): FTSC
Revision Date: 1 October 2000
Expiry Date: 1 October 2002
----------------------------------------------------------------------
Contents:
1. Credits
2. General
3. FMPT
4. TOPT
5. INTL
----------------------------------------------------------------------
Status of this document
-----------------------
This document is a Fidonet Standard (FTS).
This document specifies a Fidonet standard for the Fidonet
community.
This document is released to the public domain, and may be used,
copied or modified for any purpose whatever.
1. Credits
----------
This document is based on the work of Randy Bush and many others.
2. General
----------
The general control paragraph format is specified in separate FTSC
documents.
The addressing control paragraphs specified in this document are
normally only used in netmail messages and not in echomail messages.
While it would be technically correct to use them also in echomail,
it is known that certain programs will misbehave if they are present
there. It is therefore recommended that they should not be used in
echomail at the present time.
If a program processing messages detects these control paragraphs in
an echomail message it is recommended that they are disregarded and
deleted from any copies of that message exported to other systems.
Addressing of and address resolution for echomail messages should
instead be done with the help of packet and message header
information. See separate FTSC documents.
To determine the address of the original sender of an echomail
message, the information in the Origin line should be used. See
separate FTSC documents.
3. FMPT
-------
The FMPT control paragraph shall be used to give information about
the point number of the original sender of a message if that point
number is not 0. If the point number of the original sender of a
message is 0 that message should not contain any FMPT control
paragraph.
The format of a FMPT control paragraph shall be:
&lt;SOH&gt;"FMPT &lt;point number&gt;"&lt;CR&gt;
where &lt;point number&gt; is the ASCII representation of the point number
of the sender. The point number shall be an unsigned integer in the
range 1-65535.
E.g. a message from point number 1 of a certain node shall contain
the following FMPT control paragraph
&lt;SOH&gt;"FMPT 1"&lt;CR&gt;
Note that the format of a FMPT control paragraph deviates from the
general format specified in separate FTSC documents in that it does
not contain any colon after the control tag.
4. TOPT
-------
The TOPT control paragraph shall be used to give information about
the point number of the ultimate addressee of a message if that
point number is not 0. If the point number of the ultimate addressee
of a message is 0 that message should not contain any TOPT control
paragraph.
The format of a TOPT control paragraph shall be:
&lt;SOH&gt;"TOPT "&lt;point number&gt;&lt;CR&gt;
where &lt;point number&gt; is the ASCII representation of the point number
of the addressee. The point number shall be an unsigned integer in
the range 1-65535.
E.g. a message to point number 1 of a certain node shall contain the
following TOPT control paragraph
&lt;SOH&gt;"TOPT 1"&lt;CR&gt;
Note that the format of a TOPT control paragraph deviates from the
general format specified in separate FTSC documents in that it does
not contain any colon after the control tag.
5. INTL
-------
The INTL control paragraph shall be used to give information about
the zone numbers of the original sender and the ultimate addressee
of a message.
The format of an INTL control paragraph shall be:
&lt;SOH&gt;"INTL "&lt;destination address&gt;" "&lt;origin address&gt;&lt;CR&gt;
where &lt;destination address&gt; shall be the representation of the
address of ultimate destination and &lt;origin address&gt; is the
representation of the address of the original sender of the message
in question. These addresses shall be given on the form
&lt;zone&gt;:&lt;net&gt;/&lt;node&gt; where &lt;zone&gt; is the ASCII representation of the
zone number, &lt;net&gt; is the ASCII representation of the net number and
&lt;node&gt; is the ASCII representation of the node number. Any point
number information shall be given in FMPT and TOPT control
paragraphs.
E.g. a message from address 1:123/4.5 to 2:345/6.7 shall contain the
following INTL control paragraph
&lt;SOH&gt;"INTL 2:345/6 1:123/4"&lt;CR&gt;
Note that the format of an INTL control paragraph deviates from the
general format specified in separate FTSC documents in that it does
not contain any colon after the control tag.
INTL control paragraphs are also often used even when both the
originating and the destination systems are in the same zone. This
gives both the originating system and the destination system as well
as any intermediate routing systems unambiguous zone information
even in a situation where one system may be active in a number of
different (possibly non-FidoNet) zones.
Although it is known that some programs may route messages
incorrectly if the INTL control paragraph is present in messages
where both the originating and the destination systems are in the
same zone, it is recommended that the INTL control paragraph is
always inserted into netmail messages in packet files.
A. History
----------
Rev.1, 20001001: Initial Release.
Principal author Goran Eriksson.
**********************************************************************
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