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update docs #75
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@ -63,6 +63,26 @@ Server sends:
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BADCODEC if not accepted. Client must then revert to Base32
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BADLEN if length of query is too short
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Options:
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Client sends:
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First byte o or O
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5 bits coded as Base32 char, meaning userid
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1 char, meaning option
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Server sends:
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Full name of option if accepted. After this, option immediately takes
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effect in server.
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BADCODEC if not accepted. Previous situation remains.
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All options affect only the requesting client.
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Option chars:
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t or T: Downstream encoding Base32, for TXT/CNAME/A/MX (default)
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s or S: Downstream encoding Base64, for TXT/CNAME/A/MX
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r or R: Downstream encoding Raw, for TXT/NULL (default for NULL)
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If codec unsupported for request type, server will use Base32; note
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that server will answer any mix of request types that a client sends.
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Server may disregard this option; client must always use the downstream
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encoding type indicated in every downstream DNS packet.
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Probe downstream fragment size:
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Client sends:
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First byte r or R
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@ -113,6 +133,19 @@ Base32 encoded header, then comes the payload data, encoded with chosen codec.
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Downstream data starts with 2 byte header. Then payload data, which may be
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compressed.
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In NULL responses, downstream data is always raw. In all other response types,
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downstream data is encoded (see Options above).
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Encoding type is indicated by 1 prefix char:
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TXT:
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End result is always DNS-chopped (series of len-prefixed strings
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<=255 bytes)
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t or T: Base32 encoded before chop, decoded after un-chop
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s or S: Base64 encoded before chop, decoded after un-chop
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r or R: Raw no encoding, only DNS-chop
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CNAME/A/MX:
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h or H: Hostname encoded with Base32
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i or I: Hostname encoded with Base64
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Ping:
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Client sends:
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First byte p or P
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