Exit routine processing

The usage report program calls usage exits at three points in processing:

Initialization (input function code UPRMFC=1)
Record processing (input function code UPRMFC=2)
Termination (input function code UPRMFC=3).

IFAURP opens the files referenced by the SYSPRINT and SYSMSGS DD statements before calling the usage exits for initialization. Other handling requirements for the SYSPRINT and SYSMSGS output files include:

The usage exits MUST NOT close them
The QSAM access method must be used to write them
All output lines must be 133 characters long with the first character an ASA print character