diff options
Diffstat (limited to 'missing/explicit_bzero.c')
| -rw-r--r-- | missing/explicit_bzero.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/missing/explicit_bzero.c b/missing/explicit_bzero.c index a7ff9cb517..59417e158e 100644 --- a/missing/explicit_bzero.c +++ b/missing/explicit_bzero.c @@ -1,12 +1,9 @@ #ifndef __STDC_WANT_LIB_EXT1__ -#define __STDC_WANT_LIB_EXT1__ 1 +#define __STDC_WANT_LIB_EXT1__ 1 /* for memset_s() */ #endif #include "ruby/missing.h" #include <string.h> -#ifdef HAVE_MEMSET_S -# include <string.h> -#endif #ifdef _WIN32 #include <windows.h> @@ -17,9 +14,9 @@ /* OS support note: * BSDs have explicit_bzero(). - * OS-X has memset_s(). + * macOS has memset_s(). * Windows has SecureZeroMemory() since XP. - * Linux has none. *Sigh* + * Linux has explicit_bzero() since glibc 2.25, musl libc 1.1.20. */ /* @@ -33,7 +30,13 @@ #undef explicit_bzero #ifndef HAVE_EXPLICIT_BZERO - #ifdef HAVE_MEMSET_S + #ifdef HAVE_EXPLICIT_MEMSET +void +explicit_bzero(void *b, size_t len) +{ + (void)explicit_memset(b, 0, len); +} + #elif defined HAVE_MEMSET_S void explicit_bzero(void *b, size_t len) { |