Re: strncpy is not a safe version of strcpy - Mailing list pgsql-hackers

Noah Misch <noah@leadboat.com> writes:
> On Wed, Aug 13, 2014 at 10:21:50AM -0400, Tom Lane wrote:
>> I believe that we deal with this by the expedient of checking the lengths
>> of tablespace paths in advance, when the tablespace is created.

> The files under scrutiny here are not located in a tablespace.  Even if they
> were, isn't the length of $PGDATA/pg_tblspc the important factor?

The length of $PGDATA is of no relevance whatsoever; we chdir into that
directory at startup, and subsequently all paths are implicitly relative
to there.  If there is any backend code that's prepending $PGDATA to
something else, it's wrong to start with.
        regards, tom lane