Remove dead code in bn

[openssl.git] / crypto / include / internal / bn_int.h

diff --git a/crypto/include/internal/bn_int.h b/crypto/include/internal/bn_int.h
index 46733404604ef8a24a6be3c1dee78926ff2ce72a..ac49d1eab3d22a668094bc5588e507b2e4ce7d89 100644 (file)
--- a/crypto/include/internal/bn_int.h
+++ b/crypto/include/internal/bn_int.h
@@ -1,68 +1,22 @@
-/* ====================================================================
- * Copyright (c) 1998-2014 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/)"
- *
- * 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * 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
  */
 
 #ifndef HEADER_BN_INT_H
 # define HEADER_BN_INT_H
 
 # include <openssl/bn.h>
+# include <limits.h>
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
 
-# define bn_expand(a,bits) ((((((bits+BN_BITS2-1))/BN_BITS2)) <= (a)->dmax)?\
-        (a):bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2))
 BIGNUM *bn_wexpand(BIGNUM *a, int words);
 BIGNUM *bn_expand2(BIGNUM *a, int words);
 
@@ -80,8 +34,6 @@ signed char *bn_compute_wNAF(const BIGNUM *scalar, int w, size_t *ret_len);
 
 int bn_get_top(const BIGNUM *a);
 
-void bn_set_top(BIGNUM *a, int top);
-
 int bn_get_dmax(const BIGNUM *a);
 
 /* Set all words to zero */
@@ -102,19 +54,15 @@ BN_ULONG *bn_get_words(const BIGNUM *a);
 void bn_set_static_words(BIGNUM *a, BN_ULONG *words, int size);
 
 /*
- * Copy data into the BIGNUM. The caller must check that dmax is sufficient to
- * hold the data
+ * Copy words into the BIGNUM |a|, reallocating space as necessary.
+ * The negative flag of |a| is not modified.
+ * Returns 1 on success and 0 on failure.
  */
-void bn_set_data(BIGNUM *a, const void *data, size_t size);
-
-size_t bn_sizeof_BIGNUM(void);
-
 /*
- * Return element el from an array of BIGNUMs starting at base (required
- * because callers do not know the size of BIGNUM at compilation time)
+ * |num_words| is int because bn_expand2 takes an int. This is an internal
+ * function so we simply trust callers not to pass negative values.
  */
-BIGNUM *bn_array_el(BIGNUM *base, int el);
-
+int bn_set_words(BIGNUM *a, BN_ULONG *words, int num_words);
 
 #ifdef  __cplusplus
 }