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50 lines
2 KiB
C
50 lines
2 KiB
C
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/* zlib.h -- interface of the libz general purpose compression library
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version 1.2.8, August 12th, 2014
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Copyright (C) 1995-2013 Jean-loup Gailly and Mark Adler
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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Jean-loup Gailly Mark Adler
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jloup@gzip.org madler@alumni.caltech.edu
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*/
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/* zcrc32.h -- compute the CRC-32 of a data stream
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* Copyright (C) 1995-2006, 2010, 2011, 2012 Mark Adler
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* For conditions of distribution and use, see copyright notice in zlib.h
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*
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* Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
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* CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing
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* tables for updating the shift register in one step with three exclusive-ors
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* instead of four steps with four exclusive-ors. This results in about a
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* factor of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
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*/
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/* @(#) $Id$ */
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// TODO: Remove this file and this feature after releasing Sortix 1.0. Change
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// the checksum algorithm in the initrd header to say none.
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#ifndef ZCRC32_H
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#define ZCRC32_H
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unsigned long crc32(unsigned long crc,
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const unsigned char *buf,
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unsigned int len);
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#endif
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