[PATCH] Make zero size allocation result consistent
sebastian.huber at embedded-brains.de
Tue May 4 12:55:39 UTC 2021
On 04/05/2021 14:52, Joel Sherrill wrote:
> On Tue, May 4, 2021, 7:12 AM Sebastian Huber
> <sebastian.huber at embedded-brains.de
> <mailto:sebastian.huber at embedded-brains.de>> wrote:
> On 04/05/2021 14:07, Joel Sherrill wrote:
> > This is undefined behaviour and I would rather they all return NULL.
> As far as I understood the POSIX text, it is implementation-defined
> behaviour and POSIX gives two valid implementation options. The patch
> removed some code (less code is always good) and now we are in line
> Linux and FreeBSD.
> We should be more focused on correctness. We don't agree with not
> checking null pointers as arguments either.
> If the application uses the memory returned, there is no guarantee on
> the size and this leads quite naturally to a buffer overflow.
I don't care that much if we return a unique pointer or NULL, but it
should be consistent across the directives.
embedded brains GmbH
Herr Sebastian HUBER
email: sebastian.huber at embedded-brains.de
phone: +49-89-18 94 741 - 16
fax: +49-89-18 94 741 - 08
Registergericht: Amtsgericht München
Registernummer: HRB 157899
Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler
Unsere Datenschutzerklärung finden Sie hier:
More information about the devel