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-rw-r--r--src/common/memwipe.c106
1 files changed, 0 insertions, 106 deletions
diff --git a/src/common/memwipe.c b/src/common/memwipe.c
deleted file mode 100644
index da7e9f346..000000000
--- a/src/common/memwipe.c
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright (c) 2017, The Monero 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. Neither the name of the copyright holder nor the names of its contributors may be
-// used to endorse or promote products derived from this software without specific
-// prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER 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.
-//
-// Parts of this file Copyright (c) 2009-2015 The Bitcoin Core developers
-
-#define __STDC_WANT_LIB_EXT1__ 1
-#include <string.h>
-#include <stdlib.h>
-#ifdef HAVE_EXPLICIT_BZERO
-#include <strings.h>
-#endif
-#include "memwipe.h"
-
-#if defined(_MSC_VER)
-#define SCARECROW \
- __asm;
-#else
-#define SCARECROW \
- __asm__ __volatile__("" : : "r"(ptr) : "memory");
-#endif
-
-#ifdef HAVE_MEMSET_S
-
-void *memwipe(void *ptr, size_t n)
-{
- if (memset_s(ptr, n, 0, n))
- {
- abort();
- }
- SCARECROW // might as well...
- return ptr;
-}
-
-#elif defined HAVE_EXPLICIT_BZERO
-
-void *memwipe(void *ptr, size_t n)
-{
- explicit_bzero(ptr, n);
- SCARECROW
- return ptr;
-}
-
-#else
-
-/* The memory_cleanse implementation is taken from Bitcoin */
-
-/* Compilers have a bad habit of removing "superfluous" memset calls that
- * are trying to zero memory. For example, when memset()ing a buffer and
- * then free()ing it, the compiler might decide that the memset is
- * unobservable and thus can be removed.
- *
- * Previously we used OpenSSL which tried to stop this by a) implementing
- * memset in assembly on x86 and b) putting the function in its own file
- * for other platforms.
- *
- * This change removes those tricks in favour of using asm directives to
- * scare the compiler away. As best as our compiler folks can tell, this is
- * sufficient and will continue to be so.
- *
- * Adam Langley <agl@google.com>
- * Commit: ad1907fe73334d6c696c8539646c21b11178f20f
- * BoringSSL (LICENSE: ISC)
- */
-static void memory_cleanse(void *ptr, size_t len)
-{
- memset(ptr, 0, len);
-
- /* As best as we can tell, this is sufficient to break any optimisations that
- might try to eliminate "superfluous" memsets. If there's an easy way to
- detect memset_s, it would be better to use that. */
- SCARECROW
-}
-
-void *memwipe(void *ptr, size_t n)
-{
- memory_cleanse(ptr, n);
- SCARECROW
- return ptr;
-}
-
-#endif