Re: [OT] Testing PROT_NONE and other protections, and a surprise

[Michael Driscoll]

On Thursday 01 July 2004 08:43, Kyle Moffett wrote:
> On Jul 01, 2004, at 08:39, Jamie Lokier wrote:
> > The error code is -1, aka. MAP_FAILED.
>
> Oops!  I guess I was just lucky that part didn't fail :-D  On the other
> hand, it couldn't legally return 0 anyway, could it?  That would have been a
> slightly more sensible error code, IMHO, anyway, but it probably came from
> some silly standard somewhere.

mmap can (and will, in the case of glibc) return NULL for a length of 0.

-- 
Michael Driscoll, fenris@xxxxxxxxxxx
"A noble spirit embiggens the smallest man" -- J. Springfield
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