On Fri, 28 Jul 2006 17:16:44 -0400 Wayne Driscoll <[EMAIL PROTECTED]> wrote:
:>While that is true, since non-reentrent code loaded out of an APF :>authorized library is loaded into KEY 8 storage, there is an integrity :>exposure if said code is loaded into a multi-user address space, since :>it is open to being modified (by accident or by intent) by a :>non-authorized program. Since a reentrant program loaded from an APF :>authorized library is loaded into KEY 0 storage, only another authorized :>program could switch to PSW key 0 and modify the storage. That is among the minor worries of trying to directly execute APF code in a multiuser address space. Besides the program itself, there is the data areas and the save areas used by the program. Such code would be best served by being executed via SVC/PC or by stopping the other tasks in the address space (as done by TSO). -- Binyamin Dissen <[EMAIL PROTECTED]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
