bug#11467: Parfait problems with GNU coreutils

[Rich Burridge]

On 05/14/12 05:43 AM, Jim Meyering wrote:
> Thanks for auditing coreutils!
> A bug in sort would have been a surprise, and more of an issue,
> so I've looked at it first.
>
> Rich Burridge wrote:
> ...
> > Error: Null pointer dereference (CWE 476)
> >     Read from null pointer 's'
> >          at line 3389 of components/coreutils/coreutils-8.5/src/sort.c in 
> > function 'main'.
> >            Function 'parse_field_count' may return constant 'NULL' at line 
> > 3130, called at line 3387.
> That is not true when the third argument to parse_field_count is
> non-NULL, as is the case in sort.c from coreutils-8.5 (and in the
> latest from git).  In that case, parse_field_count exits upon failure
> and cannot return NULL.

Thanks Jim. Incomplete analysis on my part. This is a(nother) case where
parfait is not smart enough to recognize that error is a non-returning function.