Thanks Rob.
Turned out to be fairly easy. Dynamically loaded the module into MLPA,
wrote a quick program to zap the address into the correct slot in the
RCVT

Thanks for your help 


Regards
Paul 

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of Rob Scott
Sent: 07 December 2009 10:12
To: IBM-MAIN@bama.ua.edu
Subject: Re: Missing RACF exit

Paul,

As far as I am aware, if the exit pointer in the RCVT is non-zero then
RACF will invoke the exit. About 15 years ago I knocked up a quick+dirty
program to dynamically add a RACF exit and it seemed to work OK. 

I have not seen RACFXITS - however the logic I used was something along
the lines of :

(o) Determine length of RACF exit
(o) Grab that amount of E-CSA and assign ownership to the system (ie I
want it to persist)
(o) Directed load of the exit module into the E-CSA chunk
(o) Store the E-CSA address into the RCVT (remembering to indicate AMODE
in bit0)   

These days you have things like dynamic LPA - so you might be able to
avoid most of the heavy lifting and just "zap" in the new exit address. 

Rob Scott
Developer
Rocket Software
275 Grove Street * Newton, MA 02466-2272 * USA
Tel: +1.617.614.2305
Email: rsc...@rs.com
Web: www.rocketsoftware.com

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