Clean up references to FIPS

[openssl.git] / crypto / buffer / buffer.c

diff --git a/crypto/buffer/buffer.c b/crypto/buffer/buffer.c
index 5ee11f4c70570adcff9acd7c6d08efd2ea508679..6b0bd4a40429f3816aa05118ed3b6c0fda1afff8 100644 (file)
--- a/crypto/buffer/buffer.c
+++ b/crypto/buffer/buffer.c
@@ -1,59 +1,10 @@
-/* crypto/buffer/buffer.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
- * 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.]
+ * 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 <stdio.h>
@@ -81,15 +32,11 @@ BUF_MEM *BUF_MEM_new(void)
 {
     BUF_MEM *ret;
 
-    ret = OPENSSL_malloc(sizeof(*ret));
+    ret = OPENSSL_zalloc(sizeof(*ret));
     if (ret == NULL) {
         BUFerr(BUF_F_BUF_MEM_NEW, ERR_R_MALLOC_FAILURE);
         return (NULL);
     }
-    ret->flags = 0;
-    ret->length = 0;
-    ret->max = 0;
-    ret->data = NULL;
     return (ret);
 }
 
@@ -99,7 +46,6 @@ void BUF_MEM_free(BUF_MEM *a)
         return;
 
     if (a->data != NULL) {
-        memset(a->data, 0, (unsigned int)a->max);
         if (a->flags & BUF_MEM_FLAG_SECURE)
             OPENSSL_secure_free(a->data);
         else
@@ -133,7 +79,8 @@ size_t BUF_MEM_grow(BUF_MEM *str, size_t len)
         return (len);
     }
     if (str->max >= len) {
-        memset(&str->data[str->length], 0, len - str->length);
+        if (str->data != NULL)
+            memset(&str->data[str->length], 0, len - str->length);
         str->length = len;
         return (len);
     }
@@ -165,7 +112,8 @@ size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
     size_t n;
 
     if (str->length >= len) {
-        memset(&str->data[len], 0, str->length - len);
+        if (str->data != NULL)
+            memset(&str->data[len], 0, str->length - len);
         str->length = len;
         return (len);
     }
@@ -183,7 +131,7 @@ size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
     if ((str->flags & BUF_MEM_FLAG_SECURE))
         ret = sec_alloc_realloc(str, n);
     else
-        ret = OPENSSL_realloc_clean(str->data, str->max, n);
+        ret = OPENSSL_clear_realloc(str->data, str->max, n);
     if (ret == NULL) {
         BUFerr(BUF_F_BUF_MEM_GROW_CLEAN, ERR_R_MALLOC_FAILURE);
         len = 0;
@@ -196,7 +144,7 @@ size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
     return (len);
 }
 
-void BUF_reverse(unsigned char *out, unsigned char *in, size_t size)
+void BUF_reverse(unsigned char *out, const unsigned char *in, size_t size)
 {
     size_t i;
     if (in) {