Writing a logon post-prompt exit (IKJEFLD3)
The logon post-prompt exit (IKJEFLD3) allows an installation to
modify logon processing. This exit receives control after the
logon command processor has processed the LOGON command and full-screen panel information.
This exit receives control in an authorized state and receives the
standard TSO/E exit parameter list, including a 4-byte user word,
if supplied at logon by a logon exit. The logon post-prompt exit routine
can use the parameter list and user word to perform the following
functions:
- Examine the JCL statements
- Modify the JCL statements
- Provide additional JCL statements
- Terminate the LOGON command
- Update fields in the PSCB and the UPT