Exit routine environment

The following restrictions apply to this exit:

• It must be named FMNSECUR.
• It must reside in LPA (that is, within MLPA, FLPA, PLPA, EPLPA, EFLPA or EMLPA), and must therefore be reentrant. The usermod FMNUMODS installs FMNSECUR into an LPA library.
• If it is located below 16M, it is called in AMODE 24; otherwise it is called in AMODE 31.
• It will be APF-authorized only if File Manager is running APF-authorized.