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-rw-r--r--lib/common/xxhash.c48
1 files changed, 15 insertions, 33 deletions
diff --git a/lib/common/xxhash.c b/lib/common/xxhash.c
index 99d245962185..597de18fc895 100644
--- a/lib/common/xxhash.c
+++ b/lib/common/xxhash.c
@@ -1,35 +1,15 @@
/*
-* xxHash - Fast Hash algorithm
-* Copyright (C) 2012-2016, Yann Collet
-*
-* BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are
-* met:
-*
-* * Redistributions of source code must retain the above copyright
-* notice, this list of conditions and the following disclaimer.
-* * 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.
-*
-* 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
-* OWNER 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.
-*
-* You can contact the author at :
-* - xxHash homepage: http://www.xxhash.com
-* - xxHash source repository : https://github.com/Cyan4973/xxHash
+ * xxHash - Fast Hash algorithm
+ * Copyright (c) 2012-2020, Yann Collet, Facebook, Inc.
+ *
+ * You can contact the author at :
+ * - xxHash homepage: http://www.xxhash.com
+ * - xxHash source repository : https://github.com/Cyan4973/xxHash
+ *
+ * This source code is licensed under both the BSD-style license (found in the
+ * LICENSE file in the root directory of this source tree) and the GPLv2 (found
+ * in the COPYING file in the root directory of this source tree).
+ * You may select, at your option, one of the above-listed licenses.
*/
@@ -115,7 +95,7 @@ static void* XXH_memcpy(void* dest, const void* src, size_t size) { return memcp
/* *************************************
* Compiler Specific Options
***************************************/
-#if defined (__GNUC__) || defined(__cplusplus) || defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
+#if (defined(__GNUC__) && !defined(__STRICT_ANSI__)) || defined(__cplusplus) || defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L /* C99 */
# define INLINE_KEYWORD inline
#else
# define INLINE_KEYWORD
@@ -729,7 +709,9 @@ FORCE_INLINE_TEMPLATE XXH_errorcode XXH64_update_endian (XXH64_state_t* state, c
state->total_len += len;
if (state->memsize + len < 32) { /* fill in tmp buffer */
- XXH_memcpy(((BYTE*)state->mem64) + state->memsize, input, len);
+ if (input != NULL) {
+ XXH_memcpy(((BYTE*)state->mem64) + state->memsize, input, len);
+ }
state->memsize += (U32)len;
return XXH_OK;
}