Adapt ENGINE_REF_COUNT_DEBUG to the new generic trace API

[openssl.git] / crypto / engine / eng_rdrand.c

diff --git a/crypto/engine/eng_rdrand.c b/crypto/engine/eng_rdrand.c
index b3defcbe4fdb6910e97d38f64d0b7a136db42325..2fcc0edff291dbdf4dc35d575956ec7981bf787b 100644 (file)
--- a/crypto/engine/eng_rdrand.c
+++ b/crypto/engine/eng_rdrand.c
@@ -1,7 +1,7 @@
 /*
- * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2011-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include <internal/engine.h>
+#include "internal/engine.h"
 #include <openssl/rand.h>
 #include <openssl/err.h>
 #include <openssl/crypto.h>
@@ -20,28 +20,15 @@
      defined(__x86_64) || defined(__x86_64__) || \
      defined(_M_AMD64) || defined (_M_X64)) && defined(OPENSSL_CPUID_OBJ)
 
-size_t OPENSSL_ia32_rdrand(void);
+size_t OPENSSL_ia32_rdrand_bytes(unsigned char *buf, size_t len);
 
 static int get_random_bytes(unsigned char *buf, int num)
 {
-    size_t rnd;
-
-    while (num >= (int)sizeof(size_t)) {
-        if ((rnd = OPENSSL_ia32_rdrand()) == 0)
-            return 0;
-
-        *((size_t *)buf) = rnd;
-        buf += sizeof(size_t);
-        num -= sizeof(size_t);
-    }
-    if (num) {
-        if ((rnd = OPENSSL_ia32_rdrand()) == 0)
-            return 0;
-
-        memcpy(buf, &rnd, num);
+    if (num < 0) {
+        return 0;
     }
 
-    return 1;
+    return (size_t)num == OPENSSL_ia32_rdrand_bytes(buf, (size_t)num);
 }
 
 static int random_status(void)