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Rory Hewitt wrote:
You can certainly store a pointer in a user space - I regularly store
the pointer to one user space in another user space. One reason for doing
this is to allow several jobs to access a user space in another job's QTEMP
- you have one generally accessible user space, which contains pointers to
multiple user spaces in other jobs QTEMPs. Useful for running server jobs
where a single control job needs to know what's going on with the child jobs
(there are other ways to do this, obviously). Those of you who know the
software I work on may know where I use this technique.

Hmmm ... ok, but does this apply ONLY to pointers to user space memory (or other shared memory spaces)?

Seems to me a pretty big security risk if one job could peek at another jobs memory.

david


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