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memzero.h: Add MEMZERO() macro

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It calculates the size of the array safely, via SIZEOF_ARRAY(), instead of
sizeof(), which can be dangerous.

Cc: Christian Göttsche <cgzones@googlemail.com>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Iker Pedrosa <ipedrosa@redhat.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar 2023-07-30 14:32:39 +02:00 committed by Iker Pedrosa
parent e299942189
commit 64ab401239
1 changed files with 5 additions and 0 deletions
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5
lib/memzero.h
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@ -15,6 +15,11 @@
#include <string.h>
#include <strings.h>
#include "sizeof.h"
#define MEMZERO(arr) memzero(arr, SIZEOF_ARRAY(arr))
inline void memzero(void *ptr, size_t size);
inline void strzero(char *s);