1 /* 2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. 3 * Copyright (C) 2007 The Regents of the University of California. 4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). 5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>. 6 * UCRL-CODE-235197 7 * 8 * This file is part of the SPL, Solaris Porting Layer. 9 * For details, see <http://zfsonlinux.org/>. 10 * 11 * The SPL is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License as published by the 13 * Free Software Foundation; either version 2 of the License, or (at your 14 * option) any later version. 15 * 16 * The SPL is distributed in the hope that it will be useful, but WITHOUT 17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 19 * for more details. 20 * 21 * You should have received a copy of the GNU General Public License along 22 * with the SPL. If not, see <http://www.gnu.org/licenses/>. 23 * 24 * 25 * z_compress_level/z_uncompress are nearly identical copies of the 26 * compress2/uncompress functions provided by the official zlib package 27 * available at http://zlib.net/. The only changes made we to slightly 28 * adapt the functions called to match the linux kernel implementation 29 * of zlib. The full zlib license follows: 30 * 31 * zlib.h -- interface of the 'zlib' general purpose compression library 32 * version 1.2.5, April 19th, 2010 33 * 34 * Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler 35 * 36 * This software is provided 'as-is', without any express or implied 37 * warranty. In no event will the authors be held liable for any damages 38 * arising from the use of this software. 39 * 40 * Permission is granted to anyone to use this software for any purpose, 41 * including commercial applications, and to alter it and redistribute it 42 * freely, subject to the following restrictions: 43 * 44 * 1. The origin of this software must not be misrepresented; you must not 45 * claim that you wrote the original software. If you use this software 46 * in a product, an acknowledgment in the product documentation would be 47 * appreciated but is not required. 48 * 2. Altered source versions must be plainly marked as such, and must not be 49 * misrepresented as being the original software. 50 * 3. This notice may not be removed or altered from any source distribution. 51 * 52 * Jean-loup Gailly 53 * Mark Adler 54 */ 55 56 #ifndef _SPL_ZMOD_H 57 #define _SPL_ZMOD_H 58 59 #include <sys/types.h> 60 #include <linux/zlib.h> 61 62 extern int z_compress_level(void *dest, size_t *destLen, const void *source, 63 size_t sourceLen, int level); 64 extern int z_uncompress(void *dest, size_t *destLen, const void *source, 65 size_t sourceLen); 66 67 int spl_zlib_init(void); 68 void spl_zlib_fini(void); 69 70 #endif /* SPL_ZMOD_H */ 71