Re: OS stopping stack buffer overflow exploits

[Ralf Baechle]

On Mon, Jun 05, 2000 at 05:34:58PM +0200, Markus Pfeiffer wrote:

> > void * foo(void)
> > {
> >         void bar(void)
> >         {
> >         }
> > 
> >         return bar;
> > }
> > 
> ehemm, what does this code mean ?? In C one cannot declare a function in
> a fucntion ...

This is a gcc extension, RTFM.  I haven't seen it being used in the kernel
but glibc does (did?) for sure.

  Ralf