crctable.c Source File

00001 
00002 /*-------------------------------------------------------------*/
00003 /*--- Table for doing CRCs                                  ---*/
00004 /*---                                            crctable.c ---*/
00005 /*-------------------------------------------------------------*/
00006 
00007 /*--
00008   This file is a part of bzip2 and/or libbzip2, a program and
00009   library for lossless, block-sorting data compression.
00010 
00011   Copyright (C) 1996-1999 Julian R Seward.  All rights reserved.
00012 
00013   Redistribution and use in source and binary forms, with or without
00014   modification, are permitted provided that the following conditions
00015   are met:
00016 
00017   1. Redistributions of source code must retain the above copyright
00018      notice, this list of conditions and the following disclaimer.
00019 
00020   2. The origin of this software must not be misrepresented; you must 
00021      not claim that you wrote the original software.  If you use this 
00022      software in a product, an acknowledgment in the product 
00023      documentation would be appreciated but is not required.
00024 
00025   3. Altered source versions must be plainly marked as such, and must
00026      not be misrepresented as being the original software.
00027 
00028   4. The name of the author may not be used to endorse or promote 
00029      products derived from this software without specific prior written 
00030      permission.
00031 
00032   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
00033   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00034   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00035   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
00036   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00037   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
00038   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00039   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
00040   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00041   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00042   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00043 
00044   Julian Seward, Cambridge, UK.
00045   jseward@acm.org
00046   bzip2/libbzip2 version 0.9.5 of 24 May 1999
00047 
00048   This program is based on (at least) the work of:
00049      Mike Burrows
00050      David Wheeler
00051      Peter Fenwick
00052      Alistair Moffat
00053      Radford Neal
00054      Ian H. Witten
00055      Robert Sedgewick
00056      Jon L. Bentley
00057 
00058   For more information on these sources, see the manual.
00059 --*/
00060 
00061 
00062 #include "bzlib_private.h"
00063 
00064 /*--
00065   I think this is an implementation of the AUTODIN-II,
00066   Ethernet & FDDI 32-bit CRC standard.  Vaguely derived
00067   from code by Rob Warnock, in Section 51 of the
00068   comp.compression FAQ.
00069 --*/
00070 
00071 UInt32 crc32Table[256] = {
00072 
00073    /*-- Ugly, innit? --*/
00074 
00075    0x00000000L, 0x04c11db7L, 0x09823b6eL, 0x0d4326d9L,
00076    0x130476dcL, 0x17c56b6bL, 0x1a864db2L, 0x1e475005L,
00077    0x2608edb8L, 0x22c9f00fL, 0x2f8ad6d6L, 0x2b4bcb61L,
00078    0x350c9b64L, 0x31cd86d3L, 0x3c8ea00aL, 0x384fbdbdL,
00079    0x4c11db70L, 0x48d0c6c7L, 0x4593e01eL, 0x4152fda9L,
00080    0x5f15adacL, 0x5bd4b01bL, 0x569796c2L, 0x52568b75L,
00081    0x6a1936c8L, 0x6ed82b7fL, 0x639b0da6L, 0x675a1011L,
00082    0x791d4014L, 0x7ddc5da3L, 0x709f7b7aL, 0x745e66cdL,
00083    0x9823b6e0L, 0x9ce2ab57L, 0x91a18d8eL, 0x95609039L,
00084    0x8b27c03cL, 0x8fe6dd8bL, 0x82a5fb52L, 0x8664e6e5L,
00085    0xbe2b5b58L, 0xbaea46efL, 0xb7a96036L, 0xb3687d81L,
00086    0xad2f2d84L, 0xa9ee3033L, 0xa4ad16eaL, 0xa06c0b5dL,
00087    0xd4326d90L, 0xd0f37027L, 0xddb056feL, 0xd9714b49L,
00088    0xc7361b4cL, 0xc3f706fbL, 0xceb42022L, 0xca753d95L,
00089    0xf23a8028L, 0xf6fb9d9fL, 0xfbb8bb46L, 0xff79a6f1L,
00090    0xe13ef6f4L, 0xe5ffeb43L, 0xe8bccd9aL, 0xec7dd02dL,
00091    0x34867077L, 0x30476dc0L, 0x3d044b19L, 0x39c556aeL,
00092    0x278206abL, 0x23431b1cL, 0x2e003dc5L, 0x2ac12072L,
00093    0x128e9dcfL, 0x164f8078L, 0x1b0ca6a1L, 0x1fcdbb16L,
00094    0x018aeb13L, 0x054bf6a4L, 0x0808d07dL, 0x0cc9cdcaL,
00095    0x7897ab07L, 0x7c56b6b0L, 0x71159069L, 0x75d48ddeL,
00096    0x6b93dddbL, 0x6f52c06cL, 0x6211e6b5L, 0x66d0fb02L,
00097    0x5e9f46bfL, 0x5a5e5b08L, 0x571d7dd1L, 0x53dc6066L,
00098    0x4d9b3063L, 0x495a2dd4L, 0x44190b0dL, 0x40d816baL,
00099    0xaca5c697L, 0xa864db20L, 0xa527fdf9L, 0xa1e6e04eL,
00100    0xbfa1b04bL, 0xbb60adfcL, 0xb6238b25L, 0xb2e29692L,
00101    0x8aad2b2fL, 0x8e6c3698L, 0x832f1041L, 0x87ee0df6L,
00102    0x99a95df3L, 0x9d684044L, 0x902b669dL, 0x94ea7b2aL,
00103    0xe0b41de7L, 0xe4750050L, 0xe9362689L, 0xedf73b3eL,
00104    0xf3b06b3bL, 0xf771768cL, 0xfa325055L, 0xfef34de2L,
00105    0xc6bcf05fL, 0xc27dede8L, 0xcf3ecb31L, 0xcbffd686L,
00106    0xd5b88683L, 0xd1799b34L, 0xdc3abdedL, 0xd8fba05aL,
00107    0x690ce0eeL, 0x6dcdfd59L, 0x608edb80L, 0x644fc637L,
00108    0x7a089632L, 0x7ec98b85L, 0x738aad5cL, 0x774bb0ebL,
00109    0x4f040d56L, 0x4bc510e1L, 0x46863638L, 0x42472b8fL,
00110    0x5c007b8aL, 0x58c1663dL, 0x558240e4L, 0x51435d53L,
00111    0x251d3b9eL, 0x21dc2629L, 0x2c9f00f0L, 0x285e1d47L,
00112    0x36194d42L, 0x32d850f5L, 0x3f9b762cL, 0x3b5a6b9bL,
00113    0x0315d626L, 0x07d4cb91L, 0x0a97ed48L, 0x0e56f0ffL,
00114    0x1011a0faL, 0x14d0bd4dL, 0x19939b94L, 0x1d528623L,
00115    0xf12f560eL, 0xf5ee4bb9L, 0xf8ad6d60L, 0xfc6c70d7L,
00116    0xe22b20d2L, 0xe6ea3d65L, 0xeba91bbcL, 0xef68060bL,
00117    0xd727bbb6L, 0xd3e6a601L, 0xdea580d8L, 0xda649d6fL,
00118    0xc423cd6aL, 0xc0e2d0ddL, 0xcda1f604L, 0xc960ebb3L,
00119    0xbd3e8d7eL, 0xb9ff90c9L, 0xb4bcb610L, 0xb07daba7L,
00120    0xae3afba2L, 0xaafbe615L, 0xa7b8c0ccL, 0xa379dd7bL,
00121    0x9b3660c6L, 0x9ff77d71L, 0x92b45ba8L, 0x9675461fL,
00122    0x8832161aL, 0x8cf30badL, 0x81b02d74L, 0x857130c3L,
00123    0x5d8a9099L, 0x594b8d2eL, 0x5408abf7L, 0x50c9b640L,
00124    0x4e8ee645L, 0x4a4ffbf2L, 0x470cdd2bL, 0x43cdc09cL,
00125    0x7b827d21L, 0x7f436096L, 0x7200464fL, 0x76c15bf8L,
00126    0x68860bfdL, 0x6c47164aL, 0x61043093L, 0x65c52d24L,
00127    0x119b4be9L, 0x155a565eL, 0x18197087L, 0x1cd86d30L,
00128    0x029f3d35L, 0x065e2082L, 0x0b1d065bL, 0x0fdc1becL,
00129    0x3793a651L, 0x3352bbe6L, 0x3e119d3fL, 0x3ad08088L,
00130    0x2497d08dL, 0x2056cd3aL, 0x2d15ebe3L, 0x29d4f654L,
00131    0xc5a92679L, 0xc1683bceL, 0xcc2b1d17L, 0xc8ea00a0L,
00132    0xd6ad50a5L, 0xd26c4d12L, 0xdf2f6bcbL, 0xdbee767cL,
00133    0xe3a1cbc1L, 0xe760d676L, 0xea23f0afL, 0xeee2ed18L,
00134    0xf0a5bd1dL, 0xf464a0aaL, 0xf9278673L, 0xfde69bc4L,
00135    0x89b8fd09L, 0x8d79e0beL, 0x803ac667L, 0x84fbdbd0L,
00136    0x9abc8bd5L, 0x9e7d9662L, 0x933eb0bbL, 0x97ffad0cL,
00137    0xafb010b1L, 0xab710d06L, 0xa6322bdfL, 0xa2f33668L,
00138    0xbcb4666dL, 0xb8757bdaL, 0xb5365d03L, 0xb1f740b4L
00139 };
00140 
00141 
00142 /*-------------------------------------------------------------*/
00143 /*--- end                                        crctable.c ---*/
00144 /*-------------------------------------------------------------*/