The SET control statement specifies data you want KGUP to pass to the installation-defined exit routine for processing.

The SET control statement has this syntax:

SET

   INSTDATA(data-value)

INSTDATA(data-value)

This keyword specifies the data KGUP sends to the KGUP exit routine while processing control statements.

During a KGUP job, the data you specify with the INSTDATA keyword is held and sent to the exit routine each time the exit is entered for control statement processing. The same information is sent until KGUP encounters another SET control statement. The data you specified in this SET control statement replaces the data you specified in the previous SET control statement.

A KGUP exit routine performs different operations that depend on the data that is sent and the time of the call. A KGUP exit routine can change the data you send the exit and send the changed data to the user area of a key entry in the CKDS. The user area of a key entry can contain any information that you choose to store in the area.

For more information about the KGUP exit routine, see z/OS Cryptographic Services ICSF System Programmer’s Guide.

The maximum length of the character string that you can specify to an exit routine is 52 bytes. If you use blanks or special characters within the string, then you must delimit the entire string with single quotes ('). These quotes are not included as part of the 52-byte string.