2002-02-16 21:38:40 +00:00
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<TITLE>Specifications for the ^aFLAGS field.</TITLE>
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<PRE>
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Document: FSC-0053
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Version: 002
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Date: 08-Dec-92
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Specifications for the ^aFLAGS field
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Joaquim H. Homrighausen
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2:270/17@fidonet or joho@ae.lu
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December 8, 1992
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Status of this document:
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This FSC suggests a proposed protocol for the FidoNet(r) community,
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and requests discussion and suggestions for improvements.
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Distribution of this document is unlimited.
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Fido and FidoNet are registered marks of Tom Jennings and Fido
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Software.
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Purpose
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To explain and document the existing usage of the ^aFLAGS field used
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by many software packages, including FrontDoor, TosScan, and
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D'Bridge. And to inform software authors of its proper usage.
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Prologue
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One of the problems with the FTS-1 (stored) message format is its
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limitations in regards to message attributes. Several bits are used
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(reserved) by SEAdog, another by several packers and editors - even
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though most mailer authors don't support them, they remain. One
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reason would be backward compatibility with older software.
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Unfortunately, this presents a problem for software authors that
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would like to pass extended message attributes for use and handling
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by other software.
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Some software packages have been using an alternate method called
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"FLAGS" which is 7-bit ASCII placed behind <SOH>FLAGS somewhere near
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the beginning of a message. The various flags will now be described.
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Flags
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The FLAGS string should be placed somewhere near the beginning of
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the message text, and is preceeded by a <SOH> (^a) character. There
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is no need to support all or any of the below mentioned flags.
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If flags are stripped when a message passes through a system, all
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relevant and correct FTS-1 status bits should be updated to indicate
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the original contents of the FLAGS field.
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Flag Brief Long description
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--------------------------------------------------------------------
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PVT Private Indicates that the message may only be read
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by its addressee and author.
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HLD Hold Message should be held for pickup by its
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destination system.
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CRA Crash High-priority mail.
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K/S Kill/Sent Remove message after it has been success-
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fully sent.
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SNT Sent Message has been successfully sent (used
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for message without Kill/Sent status).
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RCV Received Message has been read by its addressee.
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A/S Archive/Sent Place message in "sent mail" archival
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system after it has been successfully sent.
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DIR Direct Message must be sent directly to its
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destination and may not be routed.
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ZON Zonegate Send message through zonegate (if
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possible).
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HUB Hub/Host-route Host- or Hub-route message (as
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appropriate).
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FIL File attach Message has one or more files attached to
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it.
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FRQ File request Message has one or more file requests in
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subject field.
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IMM Immediate NOW!-priority mail. Send at first
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opportunity, override any transmission
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restrictions enforced by events, costs, or
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qualification.
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XMA Xmail Message has alternate form of compressed
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mail attached.
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KFS Kill file Remove attached file(s) after they have
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been successfully sent. Only valid for file
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attach message.
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TFS Truncate file Truncate attached file(s) to zero length
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after they have been successfully sent.
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Only valid for file attach message.
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Primarily used by Conference Mail
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processors.
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LOK Lock Prevent message from being processed.
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This includes sending, deleting,
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purging, and editing.
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RRQ Receipt REQ When the mailer/packer at the message's
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final destination unpacks the message, it's
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asked to generate a receipt to the author
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of the message that indicates that the
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message arrived at its final destination.
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CFM Confirm REQ When message is read by its addressee, a
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Confirmation Receipt should be generated to
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the author of the message.
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HIR HiRes FAX: Hi-Resolution image.
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COV CoverLetter FAX: Cover sheet.
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SIG Signature FAX: Signature.
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LET LetterHead FAX: LetterHead.
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| FAX Fax image The filename specified in the message's
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| subject field contains a fax document that
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| should be viewed using software capable of
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| doing so.
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| FPU Force pickup Treated as a message with an IMM flag. This
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| instructs the mailer to keep calling the
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| destination system, if the connection is
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| aborted for some reason, until a valid "End
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| of files" signal is received (i.e. no more
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| files remain to pick up).
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Notes
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Xmail is related to the ARCmail 0.60 standard as adopted by the FTSC.
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The exception is that any type of compression method may be used and
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the naming convention isn't necessarily limited to that of the
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ARCmail 0.60 standard.
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Epilogue
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Feedback would be appreciated and can be sent to me at the addresses
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specified on the title page. Please send feedback via netmail.
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</PRE>
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2003-08-18 11:48:36 +00:00
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2002-02-16 21:38:40 +00:00
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