11.2. Protocol Initialization

Upon starting the filter program, the server immediately writes three Key: Value pairs, separated by a carriage-return and a newline, to the filter program's STDIN file descriptor. These three key-value pairs include :

For Example:

The initial setup message might look like this:

Version = 2.0\r\n
Mode = FastFilter\r\n
Key = <number>\r\n

where <number> is the value supplied to the server via the -fastfilter <number> command line parameter.