Subj : Packed Messages FTS-0001.16
To   : deon
From : Andrew Leary
Date : Thu Dec 07 2023 12:47 am

Hello deon!

07 Dec 23 16:18, you wrote to all:

de> I'm seeing a few bad packets in my inbound (from my mailer), and they
de> are been marked bad, because they end with 2 NULLs and not 3.

de> So a question - should the end of mail bundle ultimately have 2 or 3
de> NULLs?

de> FTSC-0001.16 says packed messages have:
de> * A header (58 bytes)
de> * Zero or more "Packed Messages"
de> * Finish with 2 NULLs.

de> It also says, packed messages:
de> * Start with 0x02 0x00
de> * Have some message headers (32 bytes)
de> * To, from, subject and a message body, all unbound and NULL
de> terminated.

de> So, *should* a packet containing 1 or more packed messages end on 3
de> NULLs, where the first NULL is the end of the last message, and the
de> remainaing 2 NULLs are the end of the packet?

Yes, that is what should be happening.  A .PKT containing no messages (used as
a poll packet or in an FTS-0001 handshake, is 60 bytes, 58 for the header and
2 NUL bytes to mark the end of the packet.

Any .PKT containing packed messages should end with 3 NUL bytes.  The first
terminates the message text of the final message in the packet, and then 2 NUL
bytes for the end of .PKT marker.

Regards,

Andrew

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