New upstream version 13~git1505328970.9c1c35c5upstream/13_git1505328970.9c1c35c5

1 files changed, 63 insertions, 14 deletions

diff --git a/Cryptlib/OpenSSL/crypto/bn/bn_shift.c b/Cryptlib/OpenSSL/crypto/bn/bn_shift.c
index 6a1eec80..9673d9a3 100644
--- a/Cryptlib/OpenSSL/crypto/bn/bn_shift.c
+++ b/Cryptlib/OpenSSL/crypto/bn/bn_shift.c
@@ -1,13 +1,63 @@
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+/* crypto/bn/bn_shift.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * 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
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
  */
 
-#include "internal/cryptlib.h"
+#include <stdio.h>
+#include "cryptlib.h"
 #include "bn_lcl.h"
 
 int BN_lshift1(BIGNUM *r, const BIGNUM *a)
@@ -74,8 +124,6 @@ int BN_rshift1(BIGNUM *r, const BIGNUM *a)
         c = (t & 1) ? BN_TBIT : 0;
     }
     r->top = j;
-    if (!r->top)
-        r->neg = 0; /* don't allow negative zero */
     bn_check_top(r);
     return (1);
 }
@@ -94,10 +142,10 @@ int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
         return 0;
     }
 
+    r->neg = a->neg;
     nw = n / BN_BITS2;
     if (bn_wexpand(r, a->top + nw + 1) == NULL)
         return (0);
-    r->neg = a->neg;
     lb = n % BN_BITS2;
     rb = BN_BITS2 - lb;
     f = a->d;
@@ -112,7 +160,10 @@ int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
             t[nw + i + 1] |= (l >> rb) & BN_MASK2;
             t[nw + i] = (l << lb) & BN_MASK2;
         }
-    memset(t, 0, sizeof(*t) * nw);
+    memset(t, 0, nw * sizeof(t[0]));
+    /*
+     * for (i=0; i<nw; i++) t[i]=0;
+     */
     r->top = a->top + nw + 1;
     bn_correct_top(r);
     bn_check_top(r);
@@ -142,9 +193,9 @@ int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
     }
     i = (BN_num_bits(a) - n + (BN_BITS2 - 1)) / BN_BITS2;
     if (r != a) {
+        r->neg = a->neg;
         if (bn_wexpand(r, i) == NULL)
             return (0);
-        r->neg = a->neg;
     } else {
         if (n == 0)
             return 1;           /* or the copying loop will go berserk */
@@ -168,8 +219,6 @@ int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
         if ((l = (l >> rb) & BN_MASK2))
             *(t) = l;
     }
-    if (!r->top)
-        r->neg = 0; /* don't allow negative zero */
     bn_check_top(r);
     return (1);
 }