Re: Bug in exit()?

[Michael Kerrisk]

> > I see your idea, however the standard merely says that calling
> > anything other than exec/_exit is undefined, not that it is
> > disallowed.
> 
> Of course you can do this but don't be surprised if suddenly all your
> harddrives are reformatted.  This is perfectly valid.
> 
> > In any case my report is not about vfork() - that is rather the way
> > I discovered the problem with exit(): the standards explicitly say
> > that exit() should close stdio file streams.
> 
> It is impossible to detect this from a correct program and the form of the
> current implementation has very good reasons (security is one of them). 
> There will be no change since none is necessary.

Ulrich - good, thanks for the info.  I was primarily interested to know if 
this was expected glibc behaviour (and was going to remain unchanged), 
rather than expecting a change.  If you cared to expand on the security 
angle, I would be interested to know more.

Thanks

Michael
__________________________________________
Michael Kerrisk
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"A man builds a house with four sides of rectangular
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