User Exits › COBOL User Exit Facility › Using I/O Requests to Access Keyword Parameter Data

Using I/O Requests to Access Keyword Parameter Data

The majority of the parameters coded on a JOB, EXEC, or DD statement are provided to the COBOL exit program as part of the standard statement information. You can obtain parameters that are not included in the standard information using I/O Request Code 13.

RETURN-KEYWORD-VALUE (Request Code 13)

Requests additional keyword parameter data for the current statement.

For example, to obtain the value coded for the TIME parameter on the JOB statement, you must issue an I/O Request Code 13 as part of user JCLCHECK‑JOBEXIT processing. Similarly, you can obtain the value of the TIME parameter coded on the EXEC statement using the same request at JCLCHECK-EXECEXIT. This type of request is only applicable to the current statement and therefore, the information CA JCLCheck returns is only available at JCLCHECK-JOBEXIT, JCLCHECK-EXECEXIT, and JCLCHECK‑DDEXIT, and only for that specific statement.

Note: The maximum length of the parameter data supplied is 100 bytes.