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diff --git a/src/crcspeed.h b/src/crcspeed.h
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+++ b/src/crcspeed.h
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+/* Copyright (c) 2014, Matt Stancliff <matt@genges.com>
+ * All rights reserved.
+ *
+ * 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.
+ *   * Neither the name of Redis 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 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. */
+
+#ifndef CRCSPEED_H
+#define CRCSPEED_H
+
+#include <inttypes.h>
+#include <stdio.h>
+
+typedef uint64_t (*crcfn64)(uint64_t, const void *, const uint64_t);
+typedef uint16_t (*crcfn16)(uint16_t, const void *, const uint64_t);
+
+/* CRC-64 */
+void crcspeed64little_init(crcfn64 fn, uint64_t table[8][256]);
+void crcspeed64big_init(crcfn64 fn, uint64_t table[8][256]);
+void crcspeed64native_init(crcfn64 fn, uint64_t table[8][256]);
+
+uint64_t crcspeed64little(uint64_t table[8][256], uint64_t crc, void *buf,
+                          size_t len);
+uint64_t crcspeed64big(uint64_t table[8][256], uint64_t crc, void *buf,
+                       size_t len);
+uint64_t crcspeed64native(uint64_t table[8][256], uint64_t crc, void *buf,
+                          size_t len);
+
+/* CRC-16 */
+void crcspeed16little_init(crcfn16 fn, uint16_t table[8][256]);
+void crcspeed16big_init(crcfn16 fn, uint16_t table[8][256]);
+void crcspeed16native_init(crcfn16 fn, uint16_t table[8][256]);
+
+uint16_t crcspeed16little(uint16_t table[8][256], uint16_t crc, void *buf,
+                          size_t len);
+uint16_t crcspeed16big(uint16_t table[8][256], uint16_t crc, void *buf,
+                       size_t len);
+uint16_t crcspeed16native(uint16_t table[8][256], uint16_t crc, void *buf,
+                          size_t len);
+#endif