On Sun, May 4, 2014 at 8:26 PM, Jean-Philippe Ouellet <jean-phili...@ouellet.biz> wrote: > On Sun, May 04, 2014 at 11:30:40PM +0200, Alexander Hall wrote: >> NULL theoretically could be != 0 > > Umm... short of something like: > #undef NULL > #define NULL "I'm silly and want to break everything" > or something, I don't see when that'd be the case.
I assumed from context that halex@ was asking about null pointers having a non-zero memory representation, which is allowed by ISO C and POSIX. But all OpenBSD platforms guarantee that all-bits-are-zero pointer values are null pointers. I'm almost certain that OpenSSH probably relies on this in places too, so I think we're fine to rely on it in LibreSSL.
