Remove individual copies of mbedtls_zeroize()
This commit removes all the static occurrencies of the function
mbedtls_zeroize() in each of the individual .c modules. Instead the
function has been moved to utils.h that is included in each of the
modules.
diff --git a/library/pem.c b/library/pem.c
index 13f9208..527c5f4 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -33,6 +33,7 @@
#include "mbedtls/aes.h"
#include "mbedtls/md5.h"
#include "mbedtls/cipher.h"
+#include "mbedtls/utils.h"
#include <string.h>
@@ -45,11 +46,6 @@
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
-/* Implementation that should never be optimized out by the compiler */
-static void mbedtls_zeroize( void *v, size_t n ) {
- volatile unsigned char *p = v; while( n-- ) *p++ = 0;
-}
-
void mbedtls_pem_init( mbedtls_pem_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_pem_context ) );