Copyright consolidation 06/10

[thirdparty/openssl.git] / crypto / modes / ocb128.c

diff --git a/crypto/modes/ocb128.c b/crypto/modes/ocb128.c
index c3daf7cd6ebaacce82823ed26f9be7b9e082864c..54a96b8e983fad52c75d9d859a42d89cd3568c39 100644 (file)
--- a/crypto/modes/ocb128.c
+++ b/crypto/modes/ocb128.c
@@ -1,50 +1,10 @@
-/* ====================================================================
- * Copyright (c) 2014 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+/*
+ * Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
+ * Licensed under the OpenSSL license (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
  */
 
 #include <string.h>
@@ -147,6 +107,7 @@ static OCB_BLOCK *ocb_lookup_l(OCB128_CONTEXT *ctx, size_t idx)
 
     /* We don't have it - so calculate it */
     if (idx >= ctx->max_l_index) {
+        void *tmp_ptr;
         /*
          * Each additional entry allows to process almost double as
          * much data, so that in linear world the table will need to
@@ -157,10 +118,11 @@ static OCB_BLOCK *ocb_lookup_l(OCB128_CONTEXT *ctx, size_t idx)
          * the index.
          */
         ctx->max_l_index += (idx - ctx->max_l_index + 4) & ~3;
-        ctx->l =
+        tmp_ptr =
             OPENSSL_realloc(ctx->l, ctx->max_l_index * sizeof(OCB_BLOCK));
-        if (ctx->l == NULL)
+        if (tmp_ptr == NULL) /* prevent ctx->l from being clobbered */
             return NULL;
+        ctx->l = tmp_ptr;
     }
     while (l_index < idx) {
         ocb_double(ctx->l + l_index, ctx->l + l_index + 1);
@@ -415,7 +377,7 @@ int CRYPTO_ocb128_encrypt(OCB128_CONTEXT *ctx,
 
             /* C_i = Offset_i xor ENCIPHER(K, P_i xor Offset_i) */
             inblock =
-               (OCB_BLOCK *)(in + ((i - ctx->blocks_processed - 1) * 16));
+                (OCB_BLOCK *)(in + ((i - ctx->blocks_processed - 1) * 16));
             ocb_block16_xor_misaligned(&ctx->offset, inblock, &tmp1);
             /* Checksum_i = Checksum_{i-1} xor P_i */
             ocb_block16_xor_misaligned(&ctx->checksum, inblock, &ctx->checksum);