Re: [PATCH v3] lib/string.c: implement stpcpy

From: Joe Perches
Date: Wed Aug 26 2020 - 12:57:41 EST


On Thu, 2020-08-27 at 01:49 +0900, Masahiro Yamada wrote:
> I do not have time to keep track of the discussion fully,
> but could you give me a little more context why
> the usage of stpcpy() is not recommended ?
>
> The implementation of strcpy() is almost the same.
> It is unclear to me what makes stpcpy() unsafe..

It's the same thing that makes strcpy unsafe:

Unchecked buffer lengths with no guarantee src is terminated.