aInContentType

The incoming content type. 

aOutContentType

The outgoing content type. 

aInBuffer

The input data buffer. 

aOutBuffer

The output data buffer. 

aInSize

The input buffer size. 

aOutSize

The output buffer size. 

aReturnCode

On return, contains a constant that determines whether the server should continue with the default authentication procedure. 

One of the following constants: 

NS_CONTINUE_DEFAULT_PROCESSING

NS_OVERRIDE_DEFAULT_PROCESSING