Add header guard around malloc(0) returning NULL implementation
Make it safe to import the config multiple times without having
multiple definition errors.
(This prevents errors in the fuzzers in a later patch.)
Signed-off-by: Daniel Axtens <dja@axtens.net>
diff --git a/tests/configs/config-wrapper-malloc-0-null.h b/tests/configs/config-wrapper-malloc-0-null.h
index 69a9578..add1a78 100644
--- a/tests/configs/config-wrapper-malloc-0-null.h
+++ b/tests/configs/config-wrapper-malloc-0-null.h
@@ -24,6 +24,8 @@
#include "mbedtls/config.h"
#include <stdlib.h>
+
+#ifndef MBEDTLS_PLATFORM_STD_CALLOC
static inline void *custom_calloc( size_t nmemb, size_t size )
{
if( nmemb == 0 || size == 0 )
@@ -33,5 +35,6 @@
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_PLATFORM_STD_CALLOC custom_calloc
+#endif
#endif /* MBEDTLS_CONFIG_H */