1 /* 2 * Copyright 2015 Google Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * Alternatively, this software may be distributed under the terms of the 16 * GNU General Public License ("GPL") version 2 as published by the Free 17 * Software Foundation. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef __LZ4_H_ 33 #define __LZ4_H_ 34 35 #include <stddef.h> 36 37 /* Decompresses an LZ4F image (multiple LZ4 blocks with frame header) from src 38 * to dst, ensuring that it doesn't read more than srcn bytes and doesn't write 39 * more than dstn. Buffer sizes must stay below 2GB. Can decompress files loaded 40 * to the end of a buffer in-place, as long as buffer is larger than the final 41 * output size. (Usually just a few bytes, but may be up to (8 + dstn/255) in 42 * worst case. Will reliably return an error if buffer was too small.) 43 * Returns amount of decompressed bytes, or 0 on error. 44 */ 45 size_t ulz4fn(const void *src, size_t srcn, void *dst, size_t dstn); 46 47 /* Same as ulz4fn() but does not perform any bounds checks. */ 48 size_t ulz4f(const void *src, void *dst); 49 50 #endif /* __LZ4_H_ */ 51