Run util/openssl-format-source -v -c .
[openssl.git] / crypto / engine / eng_rdrand.c
index 4e9e91d54b13a7ea0ecca53c0b8d6ef373ff7c65..9316d6fe21d0f6a606a6c185a54b2dce0a06205d 100644 (file)
 
 size_t OPENSSL_ia32_rdrand(void);
 
-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);
-       }
-
-       return 1;
-       }
-
-static int random_status (void)
-{      return 1;       }
-
-static RAND_METHOD rdrand_meth =
-       {
-       NULL,   /* seed */
-       get_random_bytes,
-       NULL,   /* cleanup */
-       NULL,   /* add */
-       get_random_bytes,
-       random_status,
-       };
+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);
+    }
+
+    return 1;
+}
+
+static int random_status(void)
+{
+    return 1;
+}
+
+static RAND_METHOD rdrand_meth = {
+    NULL,                       /* seed */
+    get_random_bytes,
+    NULL,                       /* cleanup */
+    NULL,                       /* add */
+    get_random_bytes,
+    random_status,
+};
 
 static int rdrand_init(ENGINE *e)
-{      return 1;       }
+{
+    return 1;
+}
 
 static const char *engine_e_rdrand_id = "rdrand";
 static const char *engine_e_rdrand_name = "Intel RDRAND engine";
 
 static int bind_helper(ENGINE *e)
-       {
-       if (!ENGINE_set_id(e, engine_e_rdrand_id) ||
-           !ENGINE_set_name(e, engine_e_rdrand_name) ||
-            !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) ||
-           !ENGINE_set_init_function(e, rdrand_init) ||
-           !ENGINE_set_RAND(e, &rdrand_meth) )
-               return 0;
+{
+    if (!ENGINE_set_id(e, engine_e_rdrand_id) ||
+        !ENGINE_set_name(e, engine_e_rdrand_name) ||
+        !ENGINE_set_flags(e, ENGINE_FLAGS_NO_REGISTER_ALL) ||
+        !ENGINE_set_init_function(e, rdrand_init) ||
+        !ENGINE_set_RAND(e, &rdrand_meth))
+        return 0;
 
-       return 1;
-       }
+    return 1;
+}
 
 static ENGINE *ENGINE_rdrand(void)
-       {
-       ENGINE *ret = ENGINE_new();
-       if(!ret)
-               return NULL;
-       if(!bind_helper(ret))
-               {
-               ENGINE_free(ret);
-               return NULL;
-               }
-       return ret;
-       }
-
-void ENGINE_load_rdrand (void)
-       {
-       extern unsigned int OPENSSL_ia32cap_P[];
-
-       if (OPENSSL_ia32cap_P[1] & (1<<(62-32)))
-               {
-               ENGINE *toadd = ENGINE_rdrand();
-               if(!toadd) return;
-               ENGINE_add(toadd);
-               ENGINE_free(toadd);
-               ERR_clear_error();
-               }
-       }
+{
+    ENGINE *ret = ENGINE_new();
+    if (!ret)
+        return NULL;
+    if (!bind_helper(ret)) {
+        ENGINE_free(ret);
+        return NULL;
+    }
+    return ret;
+}
+
+void ENGINE_load_rdrand(void)
+{
+    extern unsigned int OPENSSL_ia32cap_P[];
+
+    if (OPENSSL_ia32cap_P[1] & (1 << (62 - 32))) {
+        ENGINE *toadd = ENGINE_rdrand();
+        if (!toadd)
+            return;
+        ENGINE_add(toadd);
+        ENGINE_free(toadd);
+        ERR_clear_error();
+    }
+}
 #else
-void ENGINE_load_rdrand (void) {}
+void ENGINE_load_rdrand(void)
+{
+}
 #endif