#define Estrcpy(x,y) _asn1_str_cpy(x,ASN1_MAX_ERROR_DESCRIPTION_SIZE,y)
#define Estrcat(x,y) _asn1_str_cat(x,ASN1_MAX_ERROR_DESCRIPTION_SIZE,y)
+
+inline static
+void safe_memset(void *data, int c, size_t size)
+{
+ volatile unsigned volatile_zero = 0;
+ volatile char *vdata = (volatile char*)data;
+
+ /* This is based on a nice trick for safe memset,
+ * sent by David Jacobson in the openssl-dev mailing list.
+ */
+
+ do {
+ memset(data, c, size);
+ } while(vdata[volatile_zero] != c);
+}
if (node == NULL)
return;
- if (flags & ASN1_DELETE_FLAG_ZEROIZE)
- memset(node->value, 0, node->value_len);
+ if (flags & ASN1_DELETE_FLAG_ZEROIZE && node->value) {
+ safe_memset(node->value, 0, node->value_len);
+ }
if (node->value != NULL && node->value != node->small_value)
free (node->value);