userBytes
BDSElement structure
#include <AppleTalk.h>
typedef struct BDSElement { Size Offset Description
short buffSize; 2 0 Buffer size in bytes
Ptr buffPtr; 4 2 Pointer to buffer
short dataSize; 2 6 Number of bytes actually received
long userBytes; 4 8 User bytes
typedef BDSElement BDSType[8];
typedef BDSType *BDSPtr;