Programming considerations

Use care when changing or restricting the functions that build, obtain, or extract information for tokens because you could cause later SAF calls to fail.
Locating Extensions to the JCT Control Block: You can use the $JCTXGET macro to locate extensions to the job control table ($JCT) control block from this exit.
If you include code (such as a branch table) based on the security function codes presented in Table 1 be certain you also see the source of these function codes contained in macro $HASPEQU for their current and complete listing.
If you code Exit 36 or Exit 37, you can pass a RACF® request type to the exit. JES2 can request a branch entry extract to extract information from SECLABEL profiles (WAVREQST field set to WAVRXTRB). In addition, JES2 also uses the RACF extract (non-branch entry) to extract SECLABELs from various other profiles (WAVREQST field set to WAVRXTRT). Function codes 38 and 39 are defined for all these requests; see Table 1 .