Commit b647b753 authored by Matt Johnston's avatar Matt Johnston
Browse files

Use memset_s or explicit_bzero

parent 48b855c5
......@@ -375,6 +375,9 @@ AC_CHECK_FUNCS(logout updwtmp logwtmp)
AC_CHECK_HEADERS([mach/mach_time.h])
AC_CHECK_FUNCS(mach_absolute_time)
AC_CHECK_FUNCS(explicit_bzero memset_s)
AC_ARG_ENABLE(bundled-libtom,
[ --enable-bundled-libtom Force using bundled libtomcrypt/libtommath even if a system version exists.
--disable-bundled-libtom Force using system libtomcrypt/libtommath, fail if it does not exist.
......
......@@ -564,6 +564,12 @@ void * m_realloc(void* ptr, size_t size) {
/* Beware of calling this from within dbutil.c - things might get
* optimised away */
void m_burn(void *data, unsigned int len) {
#if defined(HAVE_MEMSET_S)
memset_s(data, len, 0x0, len);
#elif defined(HAVE_EXPLICIT_BZERO)
explicit_bzero(data, len);
#else
volatile char *p = data;
if (data == NULL)
......@@ -571,6 +577,7 @@ void m_burn(void *data, unsigned int len) {
while (len--) {
*p++ = 0x0;
}
#endif
}
......
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