2.2.1.4 Hook Message
The Hook Message is sent by the client to signal ending the connection. It is echoed back by the server as an acknowledgment. This message has 7 ASCII fields specified in [RFC1345].
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1 |
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2 |
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3 |
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ASCII - + |
ASCII - + |
ASCII - + |
ASCII - A |
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ASCII - T |
ASCII - H |
ASCII - CR |
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ASCII - + (1 byte): The first three fields specify three occurrences of the ASCII encoding for the '+' (plus sign) character, 0x2B. This string of '+' (plus sign) characters is often referred to as an escape sequence.
ASCII - A (1 byte): The ASCII encoding for the 'A' character, 0x41.
ASCII - T (1 byte): The ASCII encoding for the 'T' character, 0x54.
ASCII - H (1 byte): The ASCII encoding for the 'H' character, 0x48.
ASCII - CR (1 byte): The ASCII encoding for the carriage return character, 0x0D.