strdup(NULL) supposed to create SIGSEGV?

[Mike Meyer]

On Wed, 23 Apr 2008 18:26:35 +0200 Roman Divacky <rdivacky at freebsd.org> wrote:

> > I think someone gave the reason I'm about to: trying to copy a NULL
> > pointer means I have a bug somewhere earlier in my code that will
> > eventually produce visibly wrong results - a segfault being such. The
> > sooner that happens after the bug, the less code I have to search to
> > find it, the better for me.
> 
> if only the fix was something else than
> 
> if (ptr != NULL)
>    strdup(ptr);
> 
> :)

Again, under what conditions would this "fix" be considered correct?
I.e. - when does it make sense to try and duplicate a string that
isn't?

	<mike

-- 
Mike Meyer <mwm at mired.org>		http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more information.