CLU session initiation and termination (function codes X'02' and X'06')

The following parameters described in Table 1 follow the CLU search exit parameter list header when a CLU becomes available or is no longer available. A CLU becomes available when the logon manager establishes a session with it. A CLU is no longer available after the logon manager terminates the session.

Table 1. Function codes X'02' and X'06' parameters
Dec (Hex) offset	Size (Bytes)	Description
8 (8)	4	Reserved
12 (C)	8	The name of the CLU that has become available or is no longer available
20 (14)	4	CLU user extension control block pointer This pointer allows the exit to allocate a control block associated with the CLU named above. For function code X'02' processing, the logon manager saves the pointer to this control block and passes it to the exit whenever the exit is called with this same CLU name. When called for function code X'06' processing, if the pointer is not NULL, the exit is responsible for freeing this control block and its pointer.
24 (18)	2	The length, in bytes, of the control block user extension area
26 (1A)	2	Reserved