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[core] SecureZeroMemory() on _WIN32

personal/stbuehler/ci-build
Glenn Strauss 2 years ago
parent
commit
6f2dcc58cd
  1. 16
      src/safe_memclear.c

16
src/safe_memclear.c

@ -4,7 +4,16 @@
#include <string.h>
#if !defined(HAVE_MEMSET_S) && !defined(HAVE_EXPLICIT_BZERO) && !defined(HAVE_EXPLICIT_MEMSET)
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <WinBase.h>
/*(Windows XP and later provide SecureZeroMemory())*/
#define HAVE_SECUREZEROMEMORY
#endif
#if !defined(HAVE_MEMSET_S) \
&& !defined(HAVE_EXPLICIT_BZERO) \
&& !defined(HAVE_EXPLICIT_MEMSET) \
&& !defined(HAVE_SECUREZEROMEMORY)
# if defined(HAVE_WEAK_SYMBOLS)
/* it seems weak functions are never inlined, even for static builds */
@ -33,7 +42,8 @@ static void* safe_memset(void *s, int c, size_t n)
return s;
}
#endif /* !defined(HAVE_MEMSET_S) && !defined(HAVE_EXPLICIT_BZERO) */
#endif
void safe_memclear(void *s, size_t n) {
@ -43,6 +53,8 @@ void safe_memclear(void *s, size_t n) {
explicit_bzero(s, n);
#elif defined(HAVE_EXPLICIT_MEMSET)
explicit_memset(s, 0, n);
#elif defined(HAVE_SECUREZEROMEMORY)
SecureZeroMemory(s, n);
#else
safe_memset(s, 0, n);
#endif

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