Ulrich Drepper writes:
> Richard Gooch <rgooch@atnf.csiro.au> writes:
> 
> > What's the word on whether system calls that manipulate FDs are OK in
> > the vfork() child? For example, calling dup2()?
> 
> Officially: it's not correct (according to the Unix 98).  For the
> actual implementation there might be less restrictions.  The only real
> problem is register variables.  If the parent process resumes it'll
> use whatever value it has before the call.  If you have to modify a
> variable be sure to mark it as volatile.

I don't want to modify any of the parent variables. All I want to do
is dup2() and close() FDs. So Unix98 says this is verboten?

				Regards,

					Richard....

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