server_messages.txt

            SERVER RESPONSE MESSAGE FORMAT
*******************************************************

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| <status code> | sp | <status phrase> | \r | \n |
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|    <value1>   | sp |    <value2>     | \r | \n |
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|    <value1>   | sp |    <value2>     | \r | \n |
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|                       :                        |
|                       :                        |
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|    <value1>   | sp |    <value2>     | \r | \n |
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| \r | \n |
 ---------

*******************************************************
NOTES: All fields within the message are text.
       The _sp_ fields represent a single space character,
            ASCII Dec(32).
       \r is the CR character, ASCII Dec(13).
       \n is the LF character, ASCII Dec(10).

STATUS CODES/PHRASES
********************

200 OK
******
    Acknowledges successful receipt of INFORM, REMOVE, and EXIT messages.
    <status code> ==> 200
    <status phrase> ==> OK
    <value1> ==> INFORM | REMOVE | EXIT
    <value2> ==> Number of entries added or removed from the database.

202 IDENTOK
***********
    Acknowledges successful receipt of INFORM, REMOVE, and EXIT messages.
    <status code> ==> 202
    <status phrase> ==> OK
    <value1> ==> IDENT
    <value2> ==> Hostname value as received by the server (should be the
                 same value sent by the client).

400 ERROR
*********
    Acknowledges receipt of INFORM, REMOVE, QUERY, LIST, and EXIT messages,
        and notifies sender that some error has occurred in processing.
    <status code> ==> 400
    <status phrase> ==> ERROR
    <value1> ==> INFORM | REMOVE | QUERY | LIST | EXIT
    <value2> ==> Error message as quoted string. Format for this message is
                 not specified by this standard.

800 QUERYRESPONSE
*****************
    Acknowledges receipt of QUERY message and returns the query results. If there
        are no results, an ERROR message is returned with QUERY as the method.
    Note: This response uses two consecutive value lines per query match.
    <status code> ==> 800
    <status phrase> ==> QUERYRESPONSE
    <value1-1> ==> Hostname of the owner of the file
    <value2-1> ==> IP address (as stored on the server) of the owner of the file
                   in quad-dotted decimal notation (e.g., 192.168.1.10)
    <value1-2> ==> Filename of a shared file as a quoted string
                   (e.g., "Happy Birthday.mp3")
    <value2-2> ==> Filesize in bytes

842 LISTRESPONSE
*****************
    Acknowledges receipt of LIST message and returns the list results. If there
        are no results, the header field is immediately followed by a blank line.
    Note: This response uses two consecutive value lines.
    <status code> ==> 842
    <status phrase> ==> LISTRESPONSE
    <value1-1> ==> Filename of a shared file as a quoted string
                   (e.g., "Happy Birthday.mp3")
    <value2-1> ==> Filesize in bytes
    <value1-2> ==> Hostname of the owner of the file
    <value2-2> ==> Public-facing IP address (as stored on the server) of the owner
                   of the file in quad-dotted decimal notation (e.g., 192.168.1.10)