short sessRefnum; 2 28 Offset to session refnum
char aspTimeout; 1 30 Timeout for ATP
char aspRetry; 1 31 Retry count for ATP
short cbSize; 2 32 Command block size
Ptr cbPtr; 4 34 Command block pointer short rbSize; 2 38 Reply buffer size
Ptr rbPtr; 4 40 Reply buffer pointer AddrBlock afpAddrBlock; 4 44 Block in AFP login Ptr afpSCBPtr; 4 48 SCB pointer in AFP login Ptr afpAttnRoutine; 4 52 Routine pointer in AFP login char ccbFill[144]; 144 56 CCB memory allocated for driver;