unbound/compat/explicit_bzero.c

   1 /*      $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
   2 /*
   3  * Public domain.
   4  * Written by Matthew Dempsky.
   5  */
   6 #include "config.h"
   7 #include <string.h>
   8
   9 __attribute__((weak)) void
  10 __explicit_bzero_hook(void *ATTR_UNUSED(buf), size_t ATTR_UNUSED(len))
  11 {
  12 }
  13
  14 void
  15 explicit_bzero(void *buf, size_t len)
  16 {
  17 #ifdef UB_ON_WINDOWS
  18         SecureZeroMemory(buf, len);
  19 #endif
  20         memset(buf, 0, len);
  21         __explicit_bzero_hook(buf, len);
  22 }