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crc32.c 38KB

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  1. /*
  2. Copyright (c) 1990-2007 Info-ZIP. All rights reserved.
  3. See the accompanying file LICENSE, version 2005-Feb-10 or later
  4. (the contents of which are also included in zip.h) for terms of use.
  5. If, for some reason, all these files are missing, the Info-ZIP license
  6. also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
  7. */
  8. /* crc32.c -- compute the CRC-32 of a data stream
  9. * Copyright (C) 1995 Mark Adler
  10. * For conditions of distribution and use, see copyright notice in zlib.h
  11. *
  12. * Thanks to Rodney Brown <rbrown64@csc.com.au> for his contribution of faster
  13. * CRC methods: exclusive-oring 32 bits of data at a time, and pre-computing
  14. * tables for updating the shift register in one step with three exclusive-ors
  15. * instead of four steps with four exclusive-ors. This results about a factor
  16. * of two increase in speed on a Power PC G4 (PPC7455) using gcc -O3.
  17. */
  18. /* $Id: crc32.c,v 2.0 2007/01/07 05:20:36 spc Exp $ */
  19. #define __CRC32_C /* identifies this source module */
  20. #include "zip.h"
  21. #if (!defined(USE_ZLIB) || defined(USE_OWN_CRCTAB))
  22. #ifndef ZCONST
  23. # define ZCONST const
  24. #endif
  25. #include "crc32.h"
  26. /* When only the table of precomputed CRC values is needed, only the basic
  27. system-independent table containing 256 entries is created; any support
  28. for "unfolding" optimization is disabled.
  29. */
  30. #if (defined(USE_ZLIB) || defined(CRC_TABLE_ONLY))
  31. # ifdef IZ_CRCOPTIM_UNFOLDTBL
  32. # undef IZ_CRCOPTIM_UNFOLDTBL
  33. # endif
  34. #endif /* (USE_ZLIB || CRC_TABLE_ONLY) */
  35. #if defined(IZ_CRCOPTIM_UNFOLDTBL)
  36. # define CRC_TBLS 4
  37. #else
  38. # define CRC_TBLS 1
  39. #endif
  40. /*
  41. Generate tables for a byte-wise 32-bit CRC calculation on the polynomial:
  42. x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
  43. Polynomials over GF(2) are represented in binary, one bit per coefficient,
  44. with the lowest powers in the most significant bit. Then adding polynomials
  45. is just exclusive-or, and multiplying a polynomial by x is a right shift by
  46. one. If we call the above polynomial p, and represent a byte as the
  47. polynomial q, also with the lowest power in the most significant bit (so the
  48. byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
  49. where a mod b means the remainder after dividing a by b.
  50. This calculation is done using the shift-register method of multiplying and
  51. taking the remainder. The register is initialized to zero, and for each
  52. incoming bit, x^32 is added mod p to the register if the bit is a one (where
  53. x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
  54. x (which is shifting right by one and adding x^32 mod p if the bit shifted
  55. out is a one). We start with the highest power (least significant bit) of
  56. q and repeat for all eight bits of q.
  57. The first (or only) table is simply the CRC of all possible eight bit values.
  58. This is all the information needed to generate CRC's on data a byte-at-a-time
  59. for all combinations of CRC register values and incoming bytes.
  60. The remaining 3 tables (if IZ_CRCOPTIM_UNFOLDTBL is enabled) allow for
  61. word-at-a-time CRC calculation, where a word is four bytes.
  62. */
  63. #ifdef DYNAMIC_CRC_TABLE
  64. /* =========================================================================
  65. * Make the crc table. This function is needed only if you want to compute
  66. * the table dynamically.
  67. */
  68. local void make_crc_table OF((void));
  69. #if (defined(DYNALLOC_CRCTAB) && defined(REENTRANT))
  70. error: Dynamic allocation of CRC table not safe with reentrant code.
  71. #endif /* DYNALLOC_CRCTAB && REENTRANT */
  72. #ifdef DYNALLOC_CRCTAB
  73. local ulg near *crc_table = NULL;
  74. # if 0 /* not used, since sizeof("near *") <= sizeof(int) */
  75. /* Use this section when access to a "local int" is faster than access to
  76. a "local pointer" (e.g.: i86 16bit code with far pointers). */
  77. local int crc_table_empty = 1;
  78. # define CRC_TABLE_IS_EMPTY (crc_table_empty != 0)
  79. # define MARK_CRCTAB_FILLED crc_table_empty = 0
  80. # define MARK_CRCTAB_EMPTY crc_table_empty = 1
  81. # else
  82. /* Use this section on systems where the size of pointers and ints is
  83. equal (e.g.: all 32bit systems). */
  84. # define CRC_TABLE_IS_EMPTY (crc_table == NULL)
  85. # define MARK_CRCTAB_FILLED crc_table = crctab_p
  86. # define MARK_CRCTAB_EMPTY crc_table = NULL
  87. # endif
  88. #else /* !DYNALLOC_CRCTAB */
  89. local ulg near crc_table[CRC_TBLS*256];
  90. local int crc_table_empty = 1;
  91. # define CRC_TABLE_IS_EMPTY (crc_table_empty != 0)
  92. # define MARK_CRCTAB_FILLED crc_table_empty = 0
  93. #endif /* ?DYNALLOC_CRCTAB */
  94. local void make_crc_table()
  95. {
  96. ulg c; /* crc shift register */
  97. int n; /* counter for all possible eight bit values */
  98. int k; /* byte being shifted into crc apparatus */
  99. #ifdef DYNALLOC_CRCTAB
  100. ulg near *crctab_p; /* temporary pointer to allocated crc_table area */
  101. #else /* !DYNALLOC_CRCTAB */
  102. # define crctab_p crc_table
  103. #endif /* DYNALLOC_CRCTAB */
  104. #ifdef COMPUTE_XOR_PATTERN
  105. /* This piece of code has been left here to explain how the XOR pattern
  106. * used in the creation of the crc_table values can be recomputed.
  107. * For production versions of this function, it is more efficient to
  108. * supply the resultant pattern at compile time.
  109. */
  110. ulg xor; /* polynomial exclusive-or pattern */
  111. /* terms of polynomial defining this crc (except x^32): */
  112. static ZCONST uch p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
  113. /* make exclusive-or pattern from polynomial (0xedb88320L) */
  114. xor = 0L;
  115. for (n = 0; n < sizeof(p)/sizeof(uch); n++)
  116. xor |= 1L << (31 - p[n]);
  117. #else
  118. # define xor 0xedb88320L
  119. #endif
  120. #ifdef DYNALLOC_CRCTAB
  121. crctab_p = (ulg near *) nearmalloc (CRC_TBLS*256*sizeof(ulg));
  122. if (crctab_p == NULL) {
  123. ziperr(ZE_MEM, "crc_table allocation");
  124. }
  125. #endif /* DYNALLOC_CRCTAB */
  126. /* generate a crc for every 8-bit value */
  127. for (n = 0; n < 256; n++) {
  128. c = (ulg)n;
  129. for (k = 8; k; k--)
  130. c = c & 1 ? xor ^ (c >> 1) : c >> 1;
  131. crctab_p[n] = REV_BE(c);
  132. }
  133. #ifdef IZ_CRCOPTIM_UNFOLDTBL
  134. /* generate crc for each value followed by one, two, and three zeros */
  135. for (n = 0; n < 256; n++) {
  136. c = crctab_p[n];
  137. for (k = 1; k < 4; k++) {
  138. c = CRC32(c, 0, crctab_p);
  139. crctab_p[k*256+n] = c;
  140. }
  141. }
  142. #endif /* IZ_CRCOPTIM_UNFOLDTBL */
  143. MARK_CRCTAB_FILLED;
  144. }
  145. #else /* !DYNAMIC_CRC_TABLE */
  146. #ifdef DYNALLOC_CRCTAB
  147. error: Inconsistent flags, DYNALLOC_CRCTAB without DYNAMIC_CRC_TABLE.
  148. #endif
  149. /* ========================================================================
  150. * Table of CRC-32's of all single-byte values (made by make_crc_table)
  151. */
  152. local ZCONST ulg near crc_table[CRC_TBLS*256] = {
  153. # ifdef IZ_CRC_BE_OPTIMIZ
  154. 0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,
  155. 0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,
  156. 0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,
  157. 0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,
  158. 0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,
  159. 0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,
  160. 0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,
  161. 0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,
  162. 0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,
  163. 0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,
  164. 0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,
  165. 0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,
  166. 0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,
  167. 0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,
  168. 0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,
  169. 0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,
  170. 0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,
  171. 0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,
  172. 0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,
  173. 0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,
  174. 0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,
  175. 0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,
  176. 0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,
  177. 0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,
  178. 0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,
  179. 0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,
  180. 0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,
  181. 0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,
  182. 0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,
  183. 0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,
  184. 0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,
  185. 0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,
  186. 0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,
  187. 0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,
  188. 0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,
  189. 0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,
  190. 0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,
  191. 0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,
  192. 0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,
  193. 0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,
  194. 0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,
  195. 0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,
  196. 0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,
  197. 0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,
  198. 0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,
  199. 0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,
  200. 0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,
  201. 0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,
  202. 0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,
  203. 0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,
  204. 0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,
  205. 0x8def022dL
  206. # ifdef IZ_CRCOPTIM_UNFOLDTBL
  207. ,
  208. 0x00000000L, 0x41311b19L, 0x82623632L, 0xc3532d2bL, 0x04c56c64L,
  209. 0x45f4777dL, 0x86a75a56L, 0xc796414fL, 0x088ad9c8L, 0x49bbc2d1L,
  210. 0x8ae8effaL, 0xcbd9f4e3L, 0x0c4fb5acL, 0x4d7eaeb5L, 0x8e2d839eL,
  211. 0xcf1c9887L, 0x5112c24aL, 0x1023d953L, 0xd370f478L, 0x9241ef61L,
  212. 0x55d7ae2eL, 0x14e6b537L, 0xd7b5981cL, 0x96848305L, 0x59981b82L,
  213. 0x18a9009bL, 0xdbfa2db0L, 0x9acb36a9L, 0x5d5d77e6L, 0x1c6c6cffL,
  214. 0xdf3f41d4L, 0x9e0e5acdL, 0xa2248495L, 0xe3159f8cL, 0x2046b2a7L,
  215. 0x6177a9beL, 0xa6e1e8f1L, 0xe7d0f3e8L, 0x2483dec3L, 0x65b2c5daL,
  216. 0xaaae5d5dL, 0xeb9f4644L, 0x28cc6b6fL, 0x69fd7076L, 0xae6b3139L,
  217. 0xef5a2a20L, 0x2c09070bL, 0x6d381c12L, 0xf33646dfL, 0xb2075dc6L,
  218. 0x715470edL, 0x30656bf4L, 0xf7f32abbL, 0xb6c231a2L, 0x75911c89L,
  219. 0x34a00790L, 0xfbbc9f17L, 0xba8d840eL, 0x79dea925L, 0x38efb23cL,
  220. 0xff79f373L, 0xbe48e86aL, 0x7d1bc541L, 0x3c2ade58L, 0x054f79f0L,
  221. 0x447e62e9L, 0x872d4fc2L, 0xc61c54dbL, 0x018a1594L, 0x40bb0e8dL,
  222. 0x83e823a6L, 0xc2d938bfL, 0x0dc5a038L, 0x4cf4bb21L, 0x8fa7960aL,
  223. 0xce968d13L, 0x0900cc5cL, 0x4831d745L, 0x8b62fa6eL, 0xca53e177L,
  224. 0x545dbbbaL, 0x156ca0a3L, 0xd63f8d88L, 0x970e9691L, 0x5098d7deL,
  225. 0x11a9ccc7L, 0xd2fae1ecL, 0x93cbfaf5L, 0x5cd76272L, 0x1de6796bL,
  226. 0xdeb55440L, 0x9f844f59L, 0x58120e16L, 0x1923150fL, 0xda703824L,
  227. 0x9b41233dL, 0xa76bfd65L, 0xe65ae67cL, 0x2509cb57L, 0x6438d04eL,
  228. 0xa3ae9101L, 0xe29f8a18L, 0x21cca733L, 0x60fdbc2aL, 0xafe124adL,
  229. 0xeed03fb4L, 0x2d83129fL, 0x6cb20986L, 0xab2448c9L, 0xea1553d0L,
  230. 0x29467efbL, 0x687765e2L, 0xf6793f2fL, 0xb7482436L, 0x741b091dL,
  231. 0x352a1204L, 0xf2bc534bL, 0xb38d4852L, 0x70de6579L, 0x31ef7e60L,
  232. 0xfef3e6e7L, 0xbfc2fdfeL, 0x7c91d0d5L, 0x3da0cbccL, 0xfa368a83L,
  233. 0xbb07919aL, 0x7854bcb1L, 0x3965a7a8L, 0x4b98833bL, 0x0aa99822L,
  234. 0xc9fab509L, 0x88cbae10L, 0x4f5def5fL, 0x0e6cf446L, 0xcd3fd96dL,
  235. 0x8c0ec274L, 0x43125af3L, 0x022341eaL, 0xc1706cc1L, 0x804177d8L,
  236. 0x47d73697L, 0x06e62d8eL, 0xc5b500a5L, 0x84841bbcL, 0x1a8a4171L,
  237. 0x5bbb5a68L, 0x98e87743L, 0xd9d96c5aL, 0x1e4f2d15L, 0x5f7e360cL,
  238. 0x9c2d1b27L, 0xdd1c003eL, 0x120098b9L, 0x533183a0L, 0x9062ae8bL,
  239. 0xd153b592L, 0x16c5f4ddL, 0x57f4efc4L, 0x94a7c2efL, 0xd596d9f6L,
  240. 0xe9bc07aeL, 0xa88d1cb7L, 0x6bde319cL, 0x2aef2a85L, 0xed796bcaL,
  241. 0xac4870d3L, 0x6f1b5df8L, 0x2e2a46e1L, 0xe136de66L, 0xa007c57fL,
  242. 0x6354e854L, 0x2265f34dL, 0xe5f3b202L, 0xa4c2a91bL, 0x67918430L,
  243. 0x26a09f29L, 0xb8aec5e4L, 0xf99fdefdL, 0x3accf3d6L, 0x7bfde8cfL,
  244. 0xbc6ba980L, 0xfd5ab299L, 0x3e099fb2L, 0x7f3884abL, 0xb0241c2cL,
  245. 0xf1150735L, 0x32462a1eL, 0x73773107L, 0xb4e17048L, 0xf5d06b51L,
  246. 0x3683467aL, 0x77b25d63L, 0x4ed7facbL, 0x0fe6e1d2L, 0xccb5ccf9L,
  247. 0x8d84d7e0L, 0x4a1296afL, 0x0b238db6L, 0xc870a09dL, 0x8941bb84L,
  248. 0x465d2303L, 0x076c381aL, 0xc43f1531L, 0x850e0e28L, 0x42984f67L,
  249. 0x03a9547eL, 0xc0fa7955L, 0x81cb624cL, 0x1fc53881L, 0x5ef42398L,
  250. 0x9da70eb3L, 0xdc9615aaL, 0x1b0054e5L, 0x5a314ffcL, 0x996262d7L,
  251. 0xd85379ceL, 0x174fe149L, 0x567efa50L, 0x952dd77bL, 0xd41ccc62L,
  252. 0x138a8d2dL, 0x52bb9634L, 0x91e8bb1fL, 0xd0d9a006L, 0xecf37e5eL,
  253. 0xadc26547L, 0x6e91486cL, 0x2fa05375L, 0xe836123aL, 0xa9070923L,
  254. 0x6a542408L, 0x2b653f11L, 0xe479a796L, 0xa548bc8fL, 0x661b91a4L,
  255. 0x272a8abdL, 0xe0bccbf2L, 0xa18dd0ebL, 0x62defdc0L, 0x23efe6d9L,
  256. 0xbde1bc14L, 0xfcd0a70dL, 0x3f838a26L, 0x7eb2913fL, 0xb924d070L,
  257. 0xf815cb69L, 0x3b46e642L, 0x7a77fd5bL, 0xb56b65dcL, 0xf45a7ec5L,
  258. 0x370953eeL, 0x763848f7L, 0xb1ae09b8L, 0xf09f12a1L, 0x33cc3f8aL,
  259. 0x72fd2493L
  260. ,
  261. 0x00000000L, 0x376ac201L, 0x6ed48403L, 0x59be4602L, 0xdca80907L,
  262. 0xebc2cb06L, 0xb27c8d04L, 0x85164f05L, 0xb851130eL, 0x8f3bd10fL,
  263. 0xd685970dL, 0xe1ef550cL, 0x64f91a09L, 0x5393d808L, 0x0a2d9e0aL,
  264. 0x3d475c0bL, 0x70a3261cL, 0x47c9e41dL, 0x1e77a21fL, 0x291d601eL,
  265. 0xac0b2f1bL, 0x9b61ed1aL, 0xc2dfab18L, 0xf5b56919L, 0xc8f23512L,
  266. 0xff98f713L, 0xa626b111L, 0x914c7310L, 0x145a3c15L, 0x2330fe14L,
  267. 0x7a8eb816L, 0x4de47a17L, 0xe0464d38L, 0xd72c8f39L, 0x8e92c93bL,
  268. 0xb9f80b3aL, 0x3cee443fL, 0x0b84863eL, 0x523ac03cL, 0x6550023dL,
  269. 0x58175e36L, 0x6f7d9c37L, 0x36c3da35L, 0x01a91834L, 0x84bf5731L,
  270. 0xb3d59530L, 0xea6bd332L, 0xdd011133L, 0x90e56b24L, 0xa78fa925L,
  271. 0xfe31ef27L, 0xc95b2d26L, 0x4c4d6223L, 0x7b27a022L, 0x2299e620L,
  272. 0x15f32421L, 0x28b4782aL, 0x1fdeba2bL, 0x4660fc29L, 0x710a3e28L,
  273. 0xf41c712dL, 0xc376b32cL, 0x9ac8f52eL, 0xada2372fL, 0xc08d9a70L,
  274. 0xf7e75871L, 0xae591e73L, 0x9933dc72L, 0x1c259377L, 0x2b4f5176L,
  275. 0x72f11774L, 0x459bd575L, 0x78dc897eL, 0x4fb64b7fL, 0x16080d7dL,
  276. 0x2162cf7cL, 0xa4748079L, 0x931e4278L, 0xcaa0047aL, 0xfdcac67bL,
  277. 0xb02ebc6cL, 0x87447e6dL, 0xdefa386fL, 0xe990fa6eL, 0x6c86b56bL,
  278. 0x5bec776aL, 0x02523168L, 0x3538f369L, 0x087faf62L, 0x3f156d63L,
  279. 0x66ab2b61L, 0x51c1e960L, 0xd4d7a665L, 0xe3bd6464L, 0xba032266L,
  280. 0x8d69e067L, 0x20cbd748L, 0x17a11549L, 0x4e1f534bL, 0x7975914aL,
  281. 0xfc63de4fL, 0xcb091c4eL, 0x92b75a4cL, 0xa5dd984dL, 0x989ac446L,
  282. 0xaff00647L, 0xf64e4045L, 0xc1248244L, 0x4432cd41L, 0x73580f40L,
  283. 0x2ae64942L, 0x1d8c8b43L, 0x5068f154L, 0x67023355L, 0x3ebc7557L,
  284. 0x09d6b756L, 0x8cc0f853L, 0xbbaa3a52L, 0xe2147c50L, 0xd57ebe51L,
  285. 0xe839e25aL, 0xdf53205bL, 0x86ed6659L, 0xb187a458L, 0x3491eb5dL,
  286. 0x03fb295cL, 0x5a456f5eL, 0x6d2fad5fL, 0x801b35e1L, 0xb771f7e0L,
  287. 0xeecfb1e2L, 0xd9a573e3L, 0x5cb33ce6L, 0x6bd9fee7L, 0x3267b8e5L,
  288. 0x050d7ae4L, 0x384a26efL, 0x0f20e4eeL, 0x569ea2ecL, 0x61f460edL,
  289. 0xe4e22fe8L, 0xd388ede9L, 0x8a36abebL, 0xbd5c69eaL, 0xf0b813fdL,
  290. 0xc7d2d1fcL, 0x9e6c97feL, 0xa90655ffL, 0x2c101afaL, 0x1b7ad8fbL,
  291. 0x42c49ef9L, 0x75ae5cf8L, 0x48e900f3L, 0x7f83c2f2L, 0x263d84f0L,
  292. 0x115746f1L, 0x944109f4L, 0xa32bcbf5L, 0xfa958df7L, 0xcdff4ff6L,
  293. 0x605d78d9L, 0x5737bad8L, 0x0e89fcdaL, 0x39e33edbL, 0xbcf571deL,
  294. 0x8b9fb3dfL, 0xd221f5ddL, 0xe54b37dcL, 0xd80c6bd7L, 0xef66a9d6L,
  295. 0xb6d8efd4L, 0x81b22dd5L, 0x04a462d0L, 0x33cea0d1L, 0x6a70e6d3L,
  296. 0x5d1a24d2L, 0x10fe5ec5L, 0x27949cc4L, 0x7e2adac6L, 0x494018c7L,
  297. 0xcc5657c2L, 0xfb3c95c3L, 0xa282d3c1L, 0x95e811c0L, 0xa8af4dcbL,
  298. 0x9fc58fcaL, 0xc67bc9c8L, 0xf1110bc9L, 0x740744ccL, 0x436d86cdL,
  299. 0x1ad3c0cfL, 0x2db902ceL, 0x4096af91L, 0x77fc6d90L, 0x2e422b92L,
  300. 0x1928e993L, 0x9c3ea696L, 0xab546497L, 0xf2ea2295L, 0xc580e094L,
  301. 0xf8c7bc9fL, 0xcfad7e9eL, 0x9613389cL, 0xa179fa9dL, 0x246fb598L,
  302. 0x13057799L, 0x4abb319bL, 0x7dd1f39aL, 0x3035898dL, 0x075f4b8cL,
  303. 0x5ee10d8eL, 0x698bcf8fL, 0xec9d808aL, 0xdbf7428bL, 0x82490489L,
  304. 0xb523c688L, 0x88649a83L, 0xbf0e5882L, 0xe6b01e80L, 0xd1dadc81L,
  305. 0x54cc9384L, 0x63a65185L, 0x3a181787L, 0x0d72d586L, 0xa0d0e2a9L,
  306. 0x97ba20a8L, 0xce0466aaL, 0xf96ea4abL, 0x7c78ebaeL, 0x4b1229afL,
  307. 0x12ac6fadL, 0x25c6adacL, 0x1881f1a7L, 0x2feb33a6L, 0x765575a4L,
  308. 0x413fb7a5L, 0xc429f8a0L, 0xf3433aa1L, 0xaafd7ca3L, 0x9d97bea2L,
  309. 0xd073c4b5L, 0xe71906b4L, 0xbea740b6L, 0x89cd82b7L, 0x0cdbcdb2L,
  310. 0x3bb10fb3L, 0x620f49b1L, 0x55658bb0L, 0x6822d7bbL, 0x5f4815baL,
  311. 0x06f653b8L, 0x319c91b9L, 0xb48adebcL, 0x83e01cbdL, 0xda5e5abfL,
  312. 0xed3498beL
  313. ,
  314. 0x00000000L, 0x6567bcb8L, 0x8bc809aaL, 0xeeafb512L, 0x5797628fL,
  315. 0x32f0de37L, 0xdc5f6b25L, 0xb938d79dL, 0xef28b4c5L, 0x8a4f087dL,
  316. 0x64e0bd6fL, 0x018701d7L, 0xb8bfd64aL, 0xddd86af2L, 0x3377dfe0L,
  317. 0x56106358L, 0x9f571950L, 0xfa30a5e8L, 0x149f10faL, 0x71f8ac42L,
  318. 0xc8c07bdfL, 0xada7c767L, 0x43087275L, 0x266fcecdL, 0x707fad95L,
  319. 0x1518112dL, 0xfbb7a43fL, 0x9ed01887L, 0x27e8cf1aL, 0x428f73a2L,
  320. 0xac20c6b0L, 0xc9477a08L, 0x3eaf32a0L, 0x5bc88e18L, 0xb5673b0aL,
  321. 0xd00087b2L, 0x6938502fL, 0x0c5fec97L, 0xe2f05985L, 0x8797e53dL,
  322. 0xd1878665L, 0xb4e03addL, 0x5a4f8fcfL, 0x3f283377L, 0x8610e4eaL,
  323. 0xe3775852L, 0x0dd8ed40L, 0x68bf51f8L, 0xa1f82bf0L, 0xc49f9748L,
  324. 0x2a30225aL, 0x4f579ee2L, 0xf66f497fL, 0x9308f5c7L, 0x7da740d5L,
  325. 0x18c0fc6dL, 0x4ed09f35L, 0x2bb7238dL, 0xc518969fL, 0xa07f2a27L,
  326. 0x1947fdbaL, 0x7c204102L, 0x928ff410L, 0xf7e848a8L, 0x3d58149bL,
  327. 0x583fa823L, 0xb6901d31L, 0xd3f7a189L, 0x6acf7614L, 0x0fa8caacL,
  328. 0xe1077fbeL, 0x8460c306L, 0xd270a05eL, 0xb7171ce6L, 0x59b8a9f4L,
  329. 0x3cdf154cL, 0x85e7c2d1L, 0xe0807e69L, 0x0e2fcb7bL, 0x6b4877c3L,
  330. 0xa20f0dcbL, 0xc768b173L, 0x29c70461L, 0x4ca0b8d9L, 0xf5986f44L,
  331. 0x90ffd3fcL, 0x7e5066eeL, 0x1b37da56L, 0x4d27b90eL, 0x284005b6L,
  332. 0xc6efb0a4L, 0xa3880c1cL, 0x1ab0db81L, 0x7fd76739L, 0x9178d22bL,
  333. 0xf41f6e93L, 0x03f7263bL, 0x66909a83L, 0x883f2f91L, 0xed589329L,
  334. 0x546044b4L, 0x3107f80cL, 0xdfa84d1eL, 0xbacff1a6L, 0xecdf92feL,
  335. 0x89b82e46L, 0x67179b54L, 0x027027ecL, 0xbb48f071L, 0xde2f4cc9L,
  336. 0x3080f9dbL, 0x55e74563L, 0x9ca03f6bL, 0xf9c783d3L, 0x176836c1L,
  337. 0x720f8a79L, 0xcb375de4L, 0xae50e15cL, 0x40ff544eL, 0x2598e8f6L,
  338. 0x73888baeL, 0x16ef3716L, 0xf8408204L, 0x9d273ebcL, 0x241fe921L,
  339. 0x41785599L, 0xafd7e08bL, 0xcab05c33L, 0x3bb659edL, 0x5ed1e555L,
  340. 0xb07e5047L, 0xd519ecffL, 0x6c213b62L, 0x094687daL, 0xe7e932c8L,
  341. 0x828e8e70L, 0xd49eed28L, 0xb1f95190L, 0x5f56e482L, 0x3a31583aL,
  342. 0x83098fa7L, 0xe66e331fL, 0x08c1860dL, 0x6da63ab5L, 0xa4e140bdL,
  343. 0xc186fc05L, 0x2f294917L, 0x4a4ef5afL, 0xf3762232L, 0x96119e8aL,
  344. 0x78be2b98L, 0x1dd99720L, 0x4bc9f478L, 0x2eae48c0L, 0xc001fdd2L,
  345. 0xa566416aL, 0x1c5e96f7L, 0x79392a4fL, 0x97969f5dL, 0xf2f123e5L,
  346. 0x05196b4dL, 0x607ed7f5L, 0x8ed162e7L, 0xebb6de5fL, 0x528e09c2L,
  347. 0x37e9b57aL, 0xd9460068L, 0xbc21bcd0L, 0xea31df88L, 0x8f566330L,
  348. 0x61f9d622L, 0x049e6a9aL, 0xbda6bd07L, 0xd8c101bfL, 0x366eb4adL,
  349. 0x53090815L, 0x9a4e721dL, 0xff29cea5L, 0x11867bb7L, 0x74e1c70fL,
  350. 0xcdd91092L, 0xa8beac2aL, 0x46111938L, 0x2376a580L, 0x7566c6d8L,
  351. 0x10017a60L, 0xfeaecf72L, 0x9bc973caL, 0x22f1a457L, 0x479618efL,
  352. 0xa939adfdL, 0xcc5e1145L, 0x06ee4d76L, 0x6389f1ceL, 0x8d2644dcL,
  353. 0xe841f864L, 0x51792ff9L, 0x341e9341L, 0xdab12653L, 0xbfd69aebL,
  354. 0xe9c6f9b3L, 0x8ca1450bL, 0x620ef019L, 0x07694ca1L, 0xbe519b3cL,
  355. 0xdb362784L, 0x35999296L, 0x50fe2e2eL, 0x99b95426L, 0xfcdee89eL,
  356. 0x12715d8cL, 0x7716e134L, 0xce2e36a9L, 0xab498a11L, 0x45e63f03L,
  357. 0x208183bbL, 0x7691e0e3L, 0x13f65c5bL, 0xfd59e949L, 0x983e55f1L,
  358. 0x2106826cL, 0x44613ed4L, 0xaace8bc6L, 0xcfa9377eL, 0x38417fd6L,
  359. 0x5d26c36eL, 0xb389767cL, 0xd6eecac4L, 0x6fd61d59L, 0x0ab1a1e1L,
  360. 0xe41e14f3L, 0x8179a84bL, 0xd769cb13L, 0xb20e77abL, 0x5ca1c2b9L,
  361. 0x39c67e01L, 0x80fea99cL, 0xe5991524L, 0x0b36a036L, 0x6e511c8eL,
  362. 0xa7166686L, 0xc271da3eL, 0x2cde6f2cL, 0x49b9d394L, 0xf0810409L,
  363. 0x95e6b8b1L, 0x7b490da3L, 0x1e2eb11bL, 0x483ed243L, 0x2d596efbL,
  364. 0xc3f6dbe9L, 0xa6916751L, 0x1fa9b0ccL, 0x7ace0c74L, 0x9461b966L,
  365. 0xf10605deL
  366. # endif /* IZ_CRCOPTIM_UNFOLDTBL */
  367. # else /* !IZ_CRC_BE_OPTIMIZ */
  368. 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
  369. 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
  370. 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
  371. 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
  372. 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
  373. 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
  374. 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
  375. 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
  376. 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
  377. 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
  378. 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
  379. 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
  380. 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
  381. 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
  382. 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
  383. 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
  384. 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
  385. 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
  386. 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
  387. 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
  388. 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
  389. 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
  390. 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
  391. 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
  392. 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
  393. 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
  394. 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
  395. 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
  396. 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
  397. 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
  398. 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
  399. 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
  400. 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
  401. 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
  402. 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
  403. 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
  404. 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
  405. 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
  406. 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
  407. 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
  408. 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
  409. 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
  410. 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
  411. 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
  412. 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
  413. 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
  414. 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
  415. 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
  416. 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
  417. 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
  418. 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
  419. 0x2d02ef8dL
  420. # ifdef IZ_CRCOPTIM_UNFOLDTBL
  421. ,
  422. 0x00000000L, 0x191b3141L, 0x32366282L, 0x2b2d53c3L, 0x646cc504L,
  423. 0x7d77f445L, 0x565aa786L, 0x4f4196c7L, 0xc8d98a08L, 0xd1c2bb49L,
  424. 0xfaefe88aL, 0xe3f4d9cbL, 0xacb54f0cL, 0xb5ae7e4dL, 0x9e832d8eL,
  425. 0x87981ccfL, 0x4ac21251L, 0x53d92310L, 0x78f470d3L, 0x61ef4192L,
  426. 0x2eaed755L, 0x37b5e614L, 0x1c98b5d7L, 0x05838496L, 0x821b9859L,
  427. 0x9b00a918L, 0xb02dfadbL, 0xa936cb9aL, 0xe6775d5dL, 0xff6c6c1cL,
  428. 0xd4413fdfL, 0xcd5a0e9eL, 0x958424a2L, 0x8c9f15e3L, 0xa7b24620L,
  429. 0xbea97761L, 0xf1e8e1a6L, 0xe8f3d0e7L, 0xc3de8324L, 0xdac5b265L,
  430. 0x5d5daeaaL, 0x44469febL, 0x6f6bcc28L, 0x7670fd69L, 0x39316baeL,
  431. 0x202a5aefL, 0x0b07092cL, 0x121c386dL, 0xdf4636f3L, 0xc65d07b2L,
  432. 0xed705471L, 0xf46b6530L, 0xbb2af3f7L, 0xa231c2b6L, 0x891c9175L,
  433. 0x9007a034L, 0x179fbcfbL, 0x0e848dbaL, 0x25a9de79L, 0x3cb2ef38L,
  434. 0x73f379ffL, 0x6ae848beL, 0x41c51b7dL, 0x58de2a3cL, 0xf0794f05L,
  435. 0xe9627e44L, 0xc24f2d87L, 0xdb541cc6L, 0x94158a01L, 0x8d0ebb40L,
  436. 0xa623e883L, 0xbf38d9c2L, 0x38a0c50dL, 0x21bbf44cL, 0x0a96a78fL,
  437. 0x138d96ceL, 0x5ccc0009L, 0x45d73148L, 0x6efa628bL, 0x77e153caL,
  438. 0xbabb5d54L, 0xa3a06c15L, 0x888d3fd6L, 0x91960e97L, 0xded79850L,
  439. 0xc7cca911L, 0xece1fad2L, 0xf5facb93L, 0x7262d75cL, 0x6b79e61dL,
  440. 0x4054b5deL, 0x594f849fL, 0x160e1258L, 0x0f152319L, 0x243870daL,
  441. 0x3d23419bL, 0x65fd6ba7L, 0x7ce65ae6L, 0x57cb0925L, 0x4ed03864L,
  442. 0x0191aea3L, 0x188a9fe2L, 0x33a7cc21L, 0x2abcfd60L, 0xad24e1afL,
  443. 0xb43fd0eeL, 0x9f12832dL, 0x8609b26cL, 0xc94824abL, 0xd05315eaL,
  444. 0xfb7e4629L, 0xe2657768L, 0x2f3f79f6L, 0x362448b7L, 0x1d091b74L,
  445. 0x04122a35L, 0x4b53bcf2L, 0x52488db3L, 0x7965de70L, 0x607eef31L,
  446. 0xe7e6f3feL, 0xfefdc2bfL, 0xd5d0917cL, 0xcccba03dL, 0x838a36faL,
  447. 0x9a9107bbL, 0xb1bc5478L, 0xa8a76539L, 0x3b83984bL, 0x2298a90aL,
  448. 0x09b5fac9L, 0x10aecb88L, 0x5fef5d4fL, 0x46f46c0eL, 0x6dd93fcdL,
  449. 0x74c20e8cL, 0xf35a1243L, 0xea412302L, 0xc16c70c1L, 0xd8774180L,
  450. 0x9736d747L, 0x8e2de606L, 0xa500b5c5L, 0xbc1b8484L, 0x71418a1aL,
  451. 0x685abb5bL, 0x4377e898L, 0x5a6cd9d9L, 0x152d4f1eL, 0x0c367e5fL,
  452. 0x271b2d9cL, 0x3e001cddL, 0xb9980012L, 0xa0833153L, 0x8bae6290L,
  453. 0x92b553d1L, 0xddf4c516L, 0xc4eff457L, 0xefc2a794L, 0xf6d996d5L,
  454. 0xae07bce9L, 0xb71c8da8L, 0x9c31de6bL, 0x852aef2aL, 0xca6b79edL,
  455. 0xd37048acL, 0xf85d1b6fL, 0xe1462a2eL, 0x66de36e1L, 0x7fc507a0L,
  456. 0x54e85463L, 0x4df36522L, 0x02b2f3e5L, 0x1ba9c2a4L, 0x30849167L,
  457. 0x299fa026L, 0xe4c5aeb8L, 0xfdde9ff9L, 0xd6f3cc3aL, 0xcfe8fd7bL,
  458. 0x80a96bbcL, 0x99b25afdL, 0xb29f093eL, 0xab84387fL, 0x2c1c24b0L,
  459. 0x350715f1L, 0x1e2a4632L, 0x07317773L, 0x4870e1b4L, 0x516bd0f5L,
  460. 0x7a468336L, 0x635db277L, 0xcbfad74eL, 0xd2e1e60fL, 0xf9ccb5ccL,
  461. 0xe0d7848dL, 0xaf96124aL, 0xb68d230bL, 0x9da070c8L, 0x84bb4189L,
  462. 0x03235d46L, 0x1a386c07L, 0x31153fc4L, 0x280e0e85L, 0x674f9842L,
  463. 0x7e54a903L, 0x5579fac0L, 0x4c62cb81L, 0x8138c51fL, 0x9823f45eL,
  464. 0xb30ea79dL, 0xaa1596dcL, 0xe554001bL, 0xfc4f315aL, 0xd7626299L,
  465. 0xce7953d8L, 0x49e14f17L, 0x50fa7e56L, 0x7bd72d95L, 0x62cc1cd4L,
  466. 0x2d8d8a13L, 0x3496bb52L, 0x1fbbe891L, 0x06a0d9d0L, 0x5e7ef3ecL,
  467. 0x4765c2adL, 0x6c48916eL, 0x7553a02fL, 0x3a1236e8L, 0x230907a9L,
  468. 0x0824546aL, 0x113f652bL, 0x96a779e4L, 0x8fbc48a5L, 0xa4911b66L,
  469. 0xbd8a2a27L, 0xf2cbbce0L, 0xebd08da1L, 0xc0fdde62L, 0xd9e6ef23L,
  470. 0x14bce1bdL, 0x0da7d0fcL, 0x268a833fL, 0x3f91b27eL, 0x70d024b9L,
  471. 0x69cb15f8L, 0x42e6463bL, 0x5bfd777aL, 0xdc656bb5L, 0xc57e5af4L,
  472. 0xee530937L, 0xf7483876L, 0xb809aeb1L, 0xa1129ff0L, 0x8a3fcc33L,
  473. 0x9324fd72L
  474. ,
  475. 0x00000000L, 0x01c26a37L, 0x0384d46eL, 0x0246be59L, 0x0709a8dcL,
  476. 0x06cbc2ebL, 0x048d7cb2L, 0x054f1685L, 0x0e1351b8L, 0x0fd13b8fL,
  477. 0x0d9785d6L, 0x0c55efe1L, 0x091af964L, 0x08d89353L, 0x0a9e2d0aL,
  478. 0x0b5c473dL, 0x1c26a370L, 0x1de4c947L, 0x1fa2771eL, 0x1e601d29L,
  479. 0x1b2f0bacL, 0x1aed619bL, 0x18abdfc2L, 0x1969b5f5L, 0x1235f2c8L,
  480. 0x13f798ffL, 0x11b126a6L, 0x10734c91L, 0x153c5a14L, 0x14fe3023L,
  481. 0x16b88e7aL, 0x177ae44dL, 0x384d46e0L, 0x398f2cd7L, 0x3bc9928eL,
  482. 0x3a0bf8b9L, 0x3f44ee3cL, 0x3e86840bL, 0x3cc03a52L, 0x3d025065L,
  483. 0x365e1758L, 0x379c7d6fL, 0x35dac336L, 0x3418a901L, 0x3157bf84L,
  484. 0x3095d5b3L, 0x32d36beaL, 0x331101ddL, 0x246be590L, 0x25a98fa7L,
  485. 0x27ef31feL, 0x262d5bc9L, 0x23624d4cL, 0x22a0277bL, 0x20e69922L,
  486. 0x2124f315L, 0x2a78b428L, 0x2bbade1fL, 0x29fc6046L, 0x283e0a71L,
  487. 0x2d711cf4L, 0x2cb376c3L, 0x2ef5c89aL, 0x2f37a2adL, 0x709a8dc0L,
  488. 0x7158e7f7L, 0x731e59aeL, 0x72dc3399L, 0x7793251cL, 0x76514f2bL,
  489. 0x7417f172L, 0x75d59b45L, 0x7e89dc78L, 0x7f4bb64fL, 0x7d0d0816L,
  490. 0x7ccf6221L, 0x798074a4L, 0x78421e93L, 0x7a04a0caL, 0x7bc6cafdL,
  491. 0x6cbc2eb0L, 0x6d7e4487L, 0x6f38fadeL, 0x6efa90e9L, 0x6bb5866cL,
  492. 0x6a77ec5bL, 0x68315202L, 0x69f33835L, 0x62af7f08L, 0x636d153fL,
  493. 0x612bab66L, 0x60e9c151L, 0x65a6d7d4L, 0x6464bde3L, 0x662203baL,
  494. 0x67e0698dL, 0x48d7cb20L, 0x4915a117L, 0x4b531f4eL, 0x4a917579L,
  495. 0x4fde63fcL, 0x4e1c09cbL, 0x4c5ab792L, 0x4d98dda5L, 0x46c49a98L,
  496. 0x4706f0afL, 0x45404ef6L, 0x448224c1L, 0x41cd3244L, 0x400f5873L,
  497. 0x4249e62aL, 0x438b8c1dL, 0x54f16850L, 0x55330267L, 0x5775bc3eL,
  498. 0x56b7d609L, 0x53f8c08cL, 0x523aaabbL, 0x507c14e2L, 0x51be7ed5L,
  499. 0x5ae239e8L, 0x5b2053dfL, 0x5966ed86L, 0x58a487b1L, 0x5deb9134L,
  500. 0x5c29fb03L, 0x5e6f455aL, 0x5fad2f6dL, 0xe1351b80L, 0xe0f771b7L,
  501. 0xe2b1cfeeL, 0xe373a5d9L, 0xe63cb35cL, 0xe7fed96bL, 0xe5b86732L,
  502. 0xe47a0d05L, 0xef264a38L, 0xeee4200fL, 0xeca29e56L, 0xed60f461L,
  503. 0xe82fe2e4L, 0xe9ed88d3L, 0xebab368aL, 0xea695cbdL, 0xfd13b8f0L,
  504. 0xfcd1d2c7L, 0xfe976c9eL, 0xff5506a9L, 0xfa1a102cL, 0xfbd87a1bL,
  505. 0xf99ec442L, 0xf85cae75L, 0xf300e948L, 0xf2c2837fL, 0xf0843d26L,
  506. 0xf1465711L, 0xf4094194L, 0xf5cb2ba3L, 0xf78d95faL, 0xf64fffcdL,
  507. 0xd9785d60L, 0xd8ba3757L, 0xdafc890eL, 0xdb3ee339L, 0xde71f5bcL,
  508. 0xdfb39f8bL, 0xddf521d2L, 0xdc374be5L, 0xd76b0cd8L, 0xd6a966efL,
  509. 0xd4efd8b6L, 0xd52db281L, 0xd062a404L, 0xd1a0ce33L, 0xd3e6706aL,
  510. 0xd2241a5dL, 0xc55efe10L, 0xc49c9427L, 0xc6da2a7eL, 0xc7184049L,
  511. 0xc25756ccL, 0xc3953cfbL, 0xc1d382a2L, 0xc011e895L, 0xcb4dafa8L,
  512. 0xca8fc59fL, 0xc8c97bc6L, 0xc90b11f1L, 0xcc440774L, 0xcd866d43L,
  513. 0xcfc0d31aL, 0xce02b92dL, 0x91af9640L, 0x906dfc77L, 0x922b422eL,
  514. 0x93e92819L, 0x96a63e9cL, 0x976454abL, 0x9522eaf2L, 0x94e080c5L,
  515. 0x9fbcc7f8L, 0x9e7eadcfL, 0x9c381396L, 0x9dfa79a1L, 0x98b56f24L,
  516. 0x99770513L, 0x9b31bb4aL, 0x9af3d17dL, 0x8d893530L, 0x8c4b5f07L,
  517. 0x8e0de15eL, 0x8fcf8b69L, 0x8a809decL, 0x8b42f7dbL, 0x89044982L,
  518. 0x88c623b5L, 0x839a6488L, 0x82580ebfL, 0x801eb0e6L, 0x81dcdad1L,
  519. 0x8493cc54L, 0x8551a663L, 0x8717183aL, 0x86d5720dL, 0xa9e2d0a0L,
  520. 0xa820ba97L, 0xaa6604ceL, 0xaba46ef9L, 0xaeeb787cL, 0xaf29124bL,
  521. 0xad6fac12L, 0xacadc625L, 0xa7f18118L, 0xa633eb2fL, 0xa4755576L,
  522. 0xa5b73f41L, 0xa0f829c4L, 0xa13a43f3L, 0xa37cfdaaL, 0xa2be979dL,
  523. 0xb5c473d0L, 0xb40619e7L, 0xb640a7beL, 0xb782cd89L, 0xb2cddb0cL,
  524. 0xb30fb13bL, 0xb1490f62L, 0xb08b6555L, 0xbbd72268L, 0xba15485fL,
  525. 0xb853f606L, 0xb9919c31L, 0xbcde8ab4L, 0xbd1ce083L, 0xbf5a5edaL,
  526. 0xbe9834edL
  527. ,
  528. 0x00000000L, 0xb8bc6765L, 0xaa09c88bL, 0x12b5afeeL, 0x8f629757L,
  529. 0x37def032L, 0x256b5fdcL, 0x9dd738b9L, 0xc5b428efL, 0x7d084f8aL,
  530. 0x6fbde064L, 0xd7018701L, 0x4ad6bfb8L, 0xf26ad8ddL, 0xe0df7733L,
  531. 0x58631056L, 0x5019579fL, 0xe8a530faL, 0xfa109f14L, 0x42acf871L,
  532. 0xdf7bc0c8L, 0x67c7a7adL, 0x75720843L, 0xcdce6f26L, 0x95ad7f70L,
  533. 0x2d111815L, 0x3fa4b7fbL, 0x8718d09eL, 0x1acfe827L, 0xa2738f42L,
  534. 0xb0c620acL, 0x087a47c9L, 0xa032af3eL, 0x188ec85bL, 0x0a3b67b5L,
  535. 0xb28700d0L, 0x2f503869L, 0x97ec5f0cL, 0x8559f0e2L, 0x3de59787L,
  536. 0x658687d1L, 0xdd3ae0b4L, 0xcf8f4f5aL, 0x7733283fL, 0xeae41086L,
  537. 0x525877e3L, 0x40edd80dL, 0xf851bf68L, 0xf02bf8a1L, 0x48979fc4L,
  538. 0x5a22302aL, 0xe29e574fL, 0x7f496ff6L, 0xc7f50893L, 0xd540a77dL,
  539. 0x6dfcc018L, 0x359fd04eL, 0x8d23b72bL, 0x9f9618c5L, 0x272a7fa0L,
  540. 0xbafd4719L, 0x0241207cL, 0x10f48f92L, 0xa848e8f7L, 0x9b14583dL,
  541. 0x23a83f58L, 0x311d90b6L, 0x89a1f7d3L, 0x1476cf6aL, 0xaccaa80fL,
  542. 0xbe7f07e1L, 0x06c36084L, 0x5ea070d2L, 0xe61c17b7L, 0xf4a9b859L,
  543. 0x4c15df3cL, 0xd1c2e785L, 0x697e80e0L, 0x7bcb2f0eL, 0xc377486bL,
  544. 0xcb0d0fa2L, 0x73b168c7L, 0x6104c729L, 0xd9b8a04cL, 0x446f98f5L,
  545. 0xfcd3ff90L, 0xee66507eL, 0x56da371bL, 0x0eb9274dL, 0xb6054028L,
  546. 0xa4b0efc6L, 0x1c0c88a3L, 0x81dbb01aL, 0x3967d77fL, 0x2bd27891L,
  547. 0x936e1ff4L, 0x3b26f703L, 0x839a9066L, 0x912f3f88L, 0x299358edL,
  548. 0xb4446054L, 0x0cf80731L, 0x1e4da8dfL, 0xa6f1cfbaL, 0xfe92dfecL,
  549. 0x462eb889L, 0x549b1767L, 0xec277002L, 0x71f048bbL, 0xc94c2fdeL,
  550. 0xdbf98030L, 0x6345e755L, 0x6b3fa09cL, 0xd383c7f9L, 0xc1366817L,
  551. 0x798a0f72L, 0xe45d37cbL, 0x5ce150aeL, 0x4e54ff40L, 0xf6e89825L,
  552. 0xae8b8873L, 0x1637ef16L, 0x048240f8L, 0xbc3e279dL, 0x21e91f24L,
  553. 0x99557841L, 0x8be0d7afL, 0x335cb0caL, 0xed59b63bL, 0x55e5d15eL,
  554. 0x47507eb0L, 0xffec19d5L, 0x623b216cL, 0xda874609L, 0xc832e9e7L,
  555. 0x708e8e82L, 0x28ed9ed4L, 0x9051f9b1L, 0x82e4565fL, 0x3a58313aL,
  556. 0xa78f0983L, 0x1f336ee6L, 0x0d86c108L, 0xb53aa66dL, 0xbd40e1a4L,
  557. 0x05fc86c1L, 0x1749292fL, 0xaff54e4aL, 0x322276f3L, 0x8a9e1196L,
  558. 0x982bbe78L, 0x2097d91dL, 0x78f4c94bL, 0xc048ae2eL, 0xd2fd01c0L,
  559. 0x6a4166a5L, 0xf7965e1cL, 0x4f2a3979L, 0x5d9f9697L, 0xe523f1f2L,
  560. 0x4d6b1905L, 0xf5d77e60L, 0xe762d18eL, 0x5fdeb6ebL, 0xc2098e52L,
  561. 0x7ab5e937L, 0x680046d9L, 0xd0bc21bcL, 0x88df31eaL, 0x3063568fL,
  562. 0x22d6f961L, 0x9a6a9e04L, 0x07bda6bdL, 0xbf01c1d8L, 0xadb46e36L,
  563. 0x15080953L, 0x1d724e9aL, 0xa5ce29ffL, 0xb77b8611L, 0x0fc7e174L,
  564. 0x9210d9cdL, 0x2aacbea8L, 0x38191146L, 0x80a57623L, 0xd8c66675L,
  565. 0x607a0110L, 0x72cfaefeL, 0xca73c99bL, 0x57a4f122L, 0xef189647L,
  566. 0xfdad39a9L, 0x45115eccL, 0x764dee06L, 0xcef18963L, 0xdc44268dL,
  567. 0x64f841e8L, 0xf92f7951L, 0x41931e34L, 0x5326b1daL, 0xeb9ad6bfL,
  568. 0xb3f9c6e9L, 0x0b45a18cL, 0x19f00e62L, 0xa14c6907L, 0x3c9b51beL,
  569. 0x842736dbL, 0x96929935L, 0x2e2efe50L, 0x2654b999L, 0x9ee8defcL,
  570. 0x8c5d7112L, 0x34e11677L, 0xa9362eceL, 0x118a49abL, 0x033fe645L,
  571. 0xbb838120L, 0xe3e09176L, 0x5b5cf613L, 0x49e959fdL, 0xf1553e98L,
  572. 0x6c820621L, 0xd43e6144L, 0xc68bceaaL, 0x7e37a9cfL, 0xd67f4138L,
  573. 0x6ec3265dL, 0x7c7689b3L, 0xc4caeed6L, 0x591dd66fL, 0xe1a1b10aL,
  574. 0xf3141ee4L, 0x4ba87981L, 0x13cb69d7L, 0xab770eb2L, 0xb9c2a15cL,
  575. 0x017ec639L, 0x9ca9fe80L, 0x241599e5L, 0x36a0360bL, 0x8e1c516eL,
  576. 0x866616a7L, 0x3eda71c2L, 0x2c6fde2cL, 0x94d3b949L, 0x090481f0L,
  577. 0xb1b8e695L, 0xa30d497bL, 0x1bb12e1eL, 0x43d23e48L, 0xfb6e592dL,
  578. 0xe9dbf6c3L, 0x516791a6L, 0xccb0a91fL, 0x740cce7aL, 0x66b96194L,
  579. 0xde0506f1L
  580. # endif /* IZ_CRCOPTIM_UNFOLDTBL */
  581. # endif /* ? IZ_CRC_BE_OPTIMIZ */
  582. };
  583. #endif /* ?DYNAMIC_CRC_TABLE */
  584. /* use "OF((void))" here to work around a Borland TC++ 1.0 problem */
  585. #ifdef USE_ZLIB
  586. ZCONST uLongf *get_crc_table OF((void))
  587. #else
  588. ZCONST ulg near *get_crc_table OF((void))
  589. #endif
  590. {
  591. #ifdef DYNAMIC_CRC_TABLE
  592. if (CRC_TABLE_IS_EMPTY)
  593. make_crc_table();
  594. #endif
  595. #ifdef USE_ZLIB
  596. return (ZCONST uLongf *)crc_table;
  597. #else
  598. return crc_table;
  599. #endif
  600. }
  601. #ifdef DYNALLOC_CRCTAB
  602. void free_crc_table()
  603. {
  604. if (!CRC_TABLE_IS_EMPTY)
  605. {
  606. nearfree((ulg near *)crc_table);
  607. MARK_CRCTAB_EMPTY;
  608. }
  609. }
  610. #endif
  611. #ifndef USE_ZLIB
  612. #ifndef CRC_TABLE_ONLY
  613. #ifndef ASM_CRC
  614. #define DO1(crc, buf) crc = CRC32(crc, *buf++, crc_32_tab)
  615. #define DO2(crc, buf) DO1(crc, buf); DO1(crc, buf)
  616. #define DO4(crc, buf) DO2(crc, buf); DO2(crc, buf)
  617. #define DO8(crc, buf) DO4(crc, buf); DO4(crc, buf)
  618. #if (defined(IZ_CRC_BE_OPTIMIZ) || defined(IZ_CRC_LE_OPTIMIZ))
  619. # ifdef IZ_CRCOPTIM_UNFOLDTBL
  620. # ifdef IZ_CRC_BE_OPTIMIZ
  621. # define DO_OPT4(c, buf4) c ^= *(buf4)++; \
  622. c = crc_32_tab[c & 0xff] ^ crc_32_tab[256+((c>>8) & 0xff)] ^ \
  623. crc_32_tab[2*256+((c>>16) & 0xff)] ^ crc_32_tab[3*256+(c>>24)]
  624. # else /* !IZ_CRC_BE_OPTIMIZ */
  625. # define DO_OPT4(c, buf4) c ^= *(buf4)++; \
  626. c = crc_32_tab[3*256+(c & 0xff)] ^ crc_32_tab[2*256+((c>>8) & 0xff)] \
  627. ^ crc_32_tab[256+((c>>16) & 0xff)] ^ crc_32_tab[c>>24]
  628. # endif /* ?IZ_CRC_BE_OPTIMIZ */
  629. # else /* !IZ_CRCOPTIM_UNFOLDTBL */
  630. # define DO_OPT4(c, buf4) c ^= *(buf4)++; \
  631. c = CRC32UPD(c, crc_32_tab); \
  632. c = CRC32UPD(c, crc_32_tab); \
  633. c = CRC32UPD(c, crc_32_tab); \
  634. c = CRC32UPD(c, crc_32_tab)
  635. # endif /* ?IZ_CRCOPTIM_UNFOLDTBL */
  636. # define DO_OPT16(crc, buf4) DO_OPT4(crc, buf4); DO_OPT4(crc, buf4); \
  637. DO_OPT4(crc, buf4); DO_OPT4(crc, buf4);
  638. #endif /* (IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */
  639. /* ========================================================================= */
  640. ulg crc32(crc, buf, len)
  641. ulg crc; /* crc shift register */
  642. register ZCONST uch *buf; /* pointer to bytes to pump through */
  643. extent len; /* number of bytes in buf[] */
  644. /* Run a set of bytes through the crc shift register. If buf is a NULL
  645. pointer, then initialize the crc shift register contents instead.
  646. Return the current crc in either case. */
  647. {
  648. register z_uint4 c;
  649. register ZCONST ulg near *crc_32_tab;
  650. if (buf == NULL) return 0L;
  651. crc_32_tab = get_crc_table();
  652. c = (REV_BE((z_uint4)crc) ^ 0xffffffffL);
  653. #if (defined(IZ_CRC_BE_OPTIMIZ) || defined(IZ_CRC_LE_OPTIMIZ))
  654. /* Align buf pointer to next DWORD boundary. */
  655. while (len && ((ptrdiff_t)buf & 3)) {
  656. DO1(c, buf);
  657. len--;
  658. }
  659. {
  660. ZCONST z_uint4 *buf4 = (ZCONST z_uint4 *)buf;
  661. while (len >= 16) {
  662. DO_OPT16(c, buf4);
  663. len -= 16;
  664. }
  665. while (len >= 4) {
  666. DO_OPT4(c, buf4);
  667. len -= 4;
  668. }
  669. buf = (ZCONST uch *)buf4;
  670. }
  671. #else /* !(IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */
  672. #ifndef NO_UNROLLED_LOOPS
  673. while (len >= 8) {
  674. DO8(c, buf);
  675. len -= 8;
  676. }
  677. #endif /* !NO_UNROLLED_LOOPS */
  678. #endif /* ?(IZ_CRC_BE_OPTIMIZ || IZ_CRC_LE_OPTIMIZ) */
  679. if (len) do {
  680. DO1(c, buf);
  681. } while (--len);
  682. return REV_BE(c) ^ 0xffffffffL; /* (instead of ~c for 64-bit machines) */
  683. }
  684. #endif /* !ASM_CRC */
  685. #endif /* !CRC_TABLE_ONLY */
  686. #endif /* !USE_ZLIB */
  687. #endif /* !USE_ZLIB || USE_OWN_CRCTAB */