Exit 8 – Auto-Answer Unrecognizable Data

Use Exit 8 to create an accounting record when an auto-answer port receives unrecognizable data.

Point of Processing

Process	Exit Attribute
Auto-answer	Reentrant

Exit 8 is called when an auto-answer task receives a phone call that contains unrecognizable data in the first record. This may occur if the data does not match a sign-on card format supported by RSCS. It may also occur if the link-identifier of the sign-on card does not match any links defined to RSCS.

On return, if return code 8 is not issued, RSCS disables the port if it has reached the maximum number of sign-on attempts. If this number has not been reached, the call is terminated and will be re-enabled.

Entry Conditions

The following table shows the parameters passed in R0 and R1 to the first exit routine associated with this exit point. For more information about other register contents, see Standard Entry Conditions.

Register	Contents
R0	Not applicable
R1	Address of a parameter list that contains: Word 1 (+0) Address of the CVT Word 2 (+4) Address of the PORT entry Word 3 (+8) Address of a halfword field containing the length of the unrecognizable data record Word 4 (+12) Address of the data record

Exit Conditions

On return, Exit 8 sets the standard register contents (see Standard Exit Conditions).

Return Codes

Return Code	Results
0	RSCS calls the next exit routine associated with this exit point.
4	RSCS does not call any other exit routines associated with this exit point.
8	RSCS returns control to GCS. RSCS does not increment the incorrect sign-on counter nor end the phone call.

Programming Considerations

Your exit routine should not modify any accessible control blocks.
To generate an accounting record at this exit, use CP DIAGNOSE code X'4C'. For more information, see z/VM: CP Programming Services.