NAME
   CSSM_HRS_StreamInputOutput, HRS_StreamInputOutput

 SYNOPSIS

 #include <hrs.h>

 API
   CSSM_RETURN CSSMAPI CSSM_HRS_StreamInputOutput(
                                  CSSM_HRS_HANDLE ModuleHandle,
                                  CSSM_DATA_PTR InMessage,
                                  CSSM_DATA_PTR OutMessage);
 SPI
   CSSM_RETURN CSSMHRI HRS_StreamInputOutput(
                                  CSSM_HRS_HANDLE ModuleHandle,
                                  CSSM_DATA_PTR InMessage,
                                  CSSM_DATA_PTR OutMessage);

 LIBRARY
   HRS Extensible Module Manager (CDSA$INHRSEMM_SHR.EXE)

 PARAMETERS
   The parameter definitions are the same for the API and the SPI.

   ModuleHandle (input)    The handle of the attached HRS service
                           provider.
   InMessage (input)       InMessage contains a protocol data unit
                           from the partner HRS service provider.
   OutMessage (output)     OutMessage contains a protocol data unit
                           to be sent back to the partner HRS
                           service provider. If the parameter is
                           NULL, there is no message to return.

 DESCRIPTION
   This function allows the application to pass a protocol data unit
   into the HRS service provider from the partner HRS service provider,
   and to obtain a response message to return to the partner.

 RETURN VALUE
   A CSSM_RETURN value indicating success or specifying a particular
   error condition. The value CSSM_OK indicates success. All other
   values represent an error condition.

 ERRORS
   Errors are described in the CDSA Technical Standard.  See CDSA.

   CSSMERR_CSSM_NOT_INITIALIZED
   CSSMERR_CSSM_FUNCTION_FAILED
   CSSMERR_CSSM_FUNCTION_NOT_IMPLEMENTED
   CSSMERR_CSSM_FUNCTION_INTEGRITY_FAIL