[PATCH] Implement strlcat [BZ#178]

[Zack Weinberg]

On Thu, Dec 3, 2015 at 12:33 PM, Paul Eggert <eggert@cs.ucla.edu> wrote:
> Come to think of it, this is related to the confusion between one of the
> main goals of strlcpy (namely, the result is always null-terminated), and
> the weird special case where the destination size is zero (where strlcpy
> cannot null-terminate the destination). In practice user code does not and
> should not depend on this weird special case.

I would not at all be surprised to find code deliberately calling
strlcpy with destination size zero in order to learn how big the
destination buffer needed to be.

zw