Re: mq_open() and close_on_exec?

From: Chris Wright
Date: Wed Apr 14 2004 - 11:53:49 EST


* Manfred Spraul (manfred@xxxxxxxxxxxxxxxx) wrote:
> Chris Wright wrote:
> >SUSv3 doesn't seem to specify one way or the other. I don't have the
> >POSIX specs, and the old docs I have suggest that mq_open() creates an
> >object which is to be closed upon exec. Anyone have a clue if this is
> >actually required? Patch below sets this as default (if indeed it's
> >valid/required).
> >
> Did you test what other unices do? I think the patch is correct - at
> least solaris implements message queues in user space, and then an exec
> should close everything.

No, I haven't. Looks like I missed the SUSv3 specification that indeed
requires closing on exec. So, I believe the patch is needed.

thanks,
-chris
--
Linux Security Modules http://lsm.immunix.org http://lsm.bkbits.net
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