/*

 * crc32c.c

 *

 * August 26, 2011 Darrick J. Wong <djwong at us.ibm.com>

 * Reuse Bob Pearson's slice-by-8 implementation for e2fsprogs.

 *

 * July 20, 2011 Bob Pearson <rpearson at systemfabricworks.com>

 * added slice by 8 algorithm to the existing conventional and

 * slice by 4 algorithms.

 *

 * Oct 15, 2000 Matt Domsch <Matt_Domsch@dell.com>

 * Nicer crc32 functions/docs submitted by linux@horizon.com.  Thanks!

 * Code was from the public domain, copyright abandoned.  Code was

 * subsequently included in the kernel, thus was re-licensed under the

 * GNU GPL v2.

 *

 * Oct 12, 2000 Matt Domsch <Matt_Domsch@dell.com>

 * Same crc32 function was used in 5 other places in the kernel.

 * I made one version, and deleted the others.

 * There are various incantations of crc32().  Some use a seed of 0 or ~0.

 * Some xor at the end with ~0.  The generic crc32() function takes

 * seed as an argument, and doesn't xor at the end.  Then individual

 * users can do whatever they need.

 *   drivers/net/smc9194.c uses seed ~0, doesn't xor with ~0.

 *   fs/jffs2 uses seed 0, doesn't xor with ~0.

 *   fs/partitions/efi.c uses seed ~0, xor's with ~0.

 *

 * This source code is licensed under the GNU General Public License,

 * Version 2.  See the file COPYING for more details.

 */

#include "config.h"

#include <stdint.h>

#include <stdlib.h>

#include <stdio.h>

#define min(x, y)   ((x) > (y) ? (y) : (x))

#define __ALIGN_KERNEL_MASK(x, mask)  (((x) + (mask)) & ~(mask))

#define __ALIGN_KERNEL(x, a)  __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1)

#define ALIGN(x, a)   __ALIGN_KERNEL((x), (a))

#define PTR_ALIGN(p, a)   ((__typeof__(p))ALIGN((unsigned long)(p), (a)))

#include "crc32c_defs.h"

#include "ext2fs.h"

#ifdef WORDS_BIGENDIAN

#define __constant_cpu_to_le32(x) ___constant_swab32((x))

#define __constant_cpu_to_be32(x) (x)

#define __be32_to_cpu(x) (x)

#define __cpu_to_be32(x) (x)

#define __cpu_to_le32(x) (ext2fs_cpu_to_le32((x)))

#define __le32_to_cpu(x) (ext2fs_le32_to_cpu((x)))

#else

#define __constant_cpu_to_le32(x) (x)

#define __constant_cpu_to_be32(x) ___constant_swab32((x))

#define __be32_to_cpu(x) (ext2fs_be32_to_cpu((x)))

#define __cpu_to_be32(x) (ext2fs_cpu_to_be32((x)))

#define __cpu_to_le32(x) (x)

#define __le32_to_cpu(x) (x)

#endif

#if CRC_LE_BITS > 8

# define tole(x) __constant_cpu_to_le32(x)

#else

# define tole(x) (x)

#endif

#if CRC_BE_BITS > 8

# define tobe(x) __constant_cpu_to_be32(x)

#else

# define tobe(x) (x)

#endif

#include "crc32c_table.h"

#if CRC_LE_BITS > 8 || CRC_BE_BITS > 8

#if CRC_LE_BITS < 64 && CRC_BE_BITS < 64

#define CRC_INLINE inline

#else

#define CRC_INLINE

#endif

/* implements slicing-by-4 or slicing-by-8 algorithm */

static CRC_INLINE uint32_t

crc32_body(uint32_t crc, unsigned char const *buf, size_t len,

     const uint32_t (*tab)[256])

{

# ifndef WORDS_BIGENDIAN

#  define DO_CRC(x) (crc = t0[(crc ^ (x)) & 255] ^ (crc >> 8))

#  define DO_CRC4 (t3[(q) & 255] ^ t2[(q >> 8) & 255] ^ \

       t1[(q >> 16) & 255] ^ t0[(q >> 24) & 255])

#  define DO_CRC8 (t7[(q) & 255] ^ t6[(q >> 8) & 255] ^ \

       t5[(q >> 16) & 255] ^ t4[(q >> 24) & 255])

# else

#  define DO_CRC(x) (crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8))

#  define DO_CRC4 (t0[(q) & 255] ^ t1[(q >> 8) & 255] ^ \

       t2[(q >> 16) & 255] ^ t3[(q >> 24) & 255])

#  define DO_CRC8 (t4[(q) & 255] ^ t5[(q >> 8) & 255] ^ \

       t6[(q >> 16) & 255] ^ t7[(q >> 24) & 255])

# endif

  const uint32_t *b;

  size_t rem_len;

  const uint32_t *t0 = tab[0], *t1 = tab[1], *t2 = tab[2], *t3 = tab[3];

  const uint32_t *t4 = tab[4], *t5 = tab[5], *t6 = tab[6], *t7 = tab[7];

  uint32_t q;

  /* Align it */

  if (unlikely((uintptr_t)buf & 3 && len)) {

    do {

      DO_CRC(*buf++);

    } while ((--len) && ((uintptr_t)buf)&3);

  }

# if CRC_LE_BITS == 32

  rem_len = len & 3;

  len = len >> 2;

# else

  rem_len = len & 7;

  len = len >> 3;

# endif

  b = (const uint32_t *)buf;

  for (--b; len; --len) {

    q = crc ^ *++b; /* use pre increment for speed */

# if CRC_LE_BITS == 32

    crc = DO_CRC4;

# else

    crc = DO_CRC8;

    q = *++b;

    crc ^= DO_CRC4;

# endif

  }

  len = rem_len;

  /* And the last few bytes */

  if (len) {

    const uint8_t *p = (const uint8_t *)(b + 1) - 1;

    do {

      DO_CRC(*++p); /* use pre increment for speed */

    } while (--len);

  }

  return crc;

#undef DO_CRC

#undef DO_CRC4

#undef DO_CRC8

}

#endif

/**

 * crc32_le() - Calculate bitwise little-endian Ethernet AUTODIN II CRC32

 * @crc: seed value for computation.  ~0 for Ethernet, sometimes 0 for

 *  other uses, or the previous crc32 value if computing incrementally.

 * @p: pointer to buffer over which CRC is run

 * @len: length of buffer @p

 */

static inline uint32_t crc32_le_generic(uint32_t crc, unsigned char const *p,

          size_t len, const uint32_t (*tab)[256],

          uint32_t polynomial EXT2FS_ATTR((unused)))

{

#if CRC_LE_BITS == 1

  int i;

  while (len--) {

    crc ^= *p++;

    for (i = 0; i < 8; i++)

      crc = (crc >> 1) ^ ((crc & 1) ? polynomial : 0);

  }

# elif CRC_LE_BITS == 2

  while (len--) {

    crc ^= *p++;

    crc = (crc >> 2) ^ tab[0][crc & 3];

    crc = (crc >> 2) ^ tab[0][crc & 3];

    crc = (crc >> 2) ^ tab[0][crc & 3];

    crc = (crc >> 2) ^ tab[0][crc & 3];

  }

# elif CRC_LE_BITS == 4

  while (len--) {

    crc ^= *p++;

    crc = (crc >> 4) ^ tab[0][crc & 15];

    crc = (crc >> 4) ^ tab[0][crc & 15];

  }

# elif CRC_LE_BITS == 8

  /* aka Sarwate algorithm */

  while (len--) {

    crc ^= *p++;

    crc = (crc >> 8) ^ tab[0][crc & 255];

  }

# else

  crc = __cpu_to_le32(crc);

  crc = crc32_body(crc, p, len, tab);

  crc = __le32_to_cpu(crc);

#endif

  return crc;

}

uint32_t ext2fs_crc32c_le(uint32_t crc, unsigned char const *p, size_t len)

{

  return crc32_le_generic(crc, p, len, crc32ctable_le, CRC32C_POLY_LE);

}

/**

 * crc32_be() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32

 * @crc: seed value for computation.  ~0 for Ethernet, sometimes 0 for

 *  other uses, or the previous crc32 value if computing incrementally.

 * @p: pointer to buffer over which CRC is run

 * @len: length of buffer @p

 */

static inline uint32_t crc32_be_generic(uint32_t crc, unsigned char const *p,

          size_t len, const uint32_t (*tab)[256],

          uint32_t polynomial EXT2FS_ATTR((unused)))

{

#if CRC_BE_BITS == 1

  int i;

  while (len--) {

    crc ^= *p++ << 24;

    for (i = 0; i < 8; i++)

      crc =

          (crc << 1) ^ ((crc & 0x80000000) ? polynomial :

            0);

  }

# elif CRC_BE_BITS == 2

  while (len--) {

    crc ^= *p++ << 24;

    crc = (crc << 2) ^ tab[0][crc >> 30];

    crc = (crc << 2) ^ tab[0][crc >> 30];

    crc = (crc << 2) ^ tab[0][crc >> 30];

    crc = (crc << 2) ^ tab[0][crc >> 30];

  }

# elif CRC_BE_BITS == 4

  while (len--) {

    crc ^= *p++ << 24;

    crc = (crc << 4) ^ tab[0][crc >> 28];

    crc = (crc << 4) ^ tab[0][crc >> 28];

  }

# elif CRC_BE_BITS == 8

  while (len--) {

    crc ^= *p++ << 24;

    crc = (crc << 8) ^ tab[0][crc >> 24];

  }

# else

  crc = __cpu_to_be32(crc);

  crc = crc32_body(crc, p, len, tab);

  crc = __be32_to_cpu(crc);

# endif

  return crc;

}

uint32_t ext2fs_crc32_be(uint32_t crc, unsigned char const *p, size_t len)

{

  return crc32_be_generic(crc, p, len, crc32table_be, CRCPOLY_BE);

}

#ifdef UNITTEST

static uint8_t test_buf[] = {

  0xd9, 0xd7, 0x6a, 0x13, 0x3a, 0xb1, 0x05, 0x48,

  0xda, 0xad, 0x14, 0xbd, 0x03, 0x3a, 0x58, 0x5e,

  0x6e, 0xd1, 0x56, 0xc9, 0x2e, 0xc4, 0xcb, 0x6b,

  0xe8, 0x77, 0x52, 0x37, 0x4e, 0x0f, 0x55, 0xd2,

  0x12, 0x65, 0x90, 0xc2, 0x41, 0x49, 0x81, 0x01,

  0xf5, 0x01, 0xeb, 0x2d, 0x78, 0x74, 0x23, 0x5d,

  0x84, 0x5c, 0x81, 0x92, 0x21, 0xe9, 0x8d, 0x1d,

  0x89, 0xf2, 0x4a, 0xac, 0xdd, 0xf9, 0xaf, 0xee,

  0x44, 0xe7, 0x6e, 0xed, 0xfb, 0xd8, 0x89, 0x0e,

  0x96, 0x62, 0xcd, 0xa4, 0x4b, 0xa9, 0xe5, 0x45,

  0xb1, 0x29, 0x9b, 0x0f, 0xfc, 0xbd, 0x83, 0xab,

  0xa8, 0x54, 0x96, 0x44, 0x2c, 0x7f, 0xbb, 0xe7,

  0x52, 0x29, 0x08, 0xee, 0x14, 0xc5, 0xc2, 0xec,

  0x5a, 0xeb, 0x40, 0x40, 0xea, 0xd1, 0x3d, 0x15,

  0x73, 0xaa, 0x8c, 0x73, 0xfc, 0xf2, 0x2b, 0x49,

  0x0b, 0x13, 0x96, 0xd9, 0x8e, 0x4b, 0xbc, 0xe0,

  0xf4, 0xd2, 0xe0, 0x2e, 0x7a, 0xf0, 0x5d, 0x1f,

  0xd2, 0x92, 0x97, 0xe0, 0xaa, 0x59, 0xab, 0xc9,

  0x5c, 0xa6, 0x51, 0x1a, 0xe3, 0xd6, 0x06, 0xb9,

  0xae, 0xb8, 0x76, 0x36, 0x79, 0x37, 0x52, 0xf6,

  0x34, 0xaf, 0x27, 0x19, 0xe1, 0xc0, 0x2b, 0xdd,

  0x01, 0x15, 0xcd, 0xce, 0x44, 0xf6, 0x4c, 0x18,

  0x92, 0x69, 0xbe, 0x8a, 0x76, 0x23, 0x52, 0x13,

  0x3f, 0xf9, 0xe0, 0xf5, 0x06, 0x28, 0x7c, 0xc7,

  0xf3, 0x42, 0x0f, 0xdd, 0x40, 0x33, 0xf7, 0x99,

  0xe2, 0xad, 0x26, 0xd9, 0x53, 0x10, 0x72, 0x0c,

  0x4e, 0x43, 0x4c, 0x61, 0xfe, 0xd9, 0xc1, 0x16,

  0xa1, 0x93, 0xca, 0x3c, 0x75, 0x7f, 0x07, 0x7a,

  0x65, 0xb3, 0x53, 0x2a, 0x52, 0x00, 0xa0, 0x62,

  0xe0, 0xa3, 0x1f, 0xad, 0xd7, 0xbb, 0xc0, 0x83,

  0x5d, 0x54, 0x87, 0x5f, 0xc8, 0x2f, 0xc8, 0xbf,

  0x69, 0x04, 0x91, 0xc8, 0xa6, 0x1d, 0x4d, 0x46,

  0x91, 0xfc, 0x26, 0xf4, 0x16, 0xd1, 0xa4, 0xbf,

  0x5c, 0xa2, 0x6c, 0xdd, 0xb4, 0x40, 0xf2, 0x2e,

  0xa2, 0xad, 0xf7, 0xf4, 0xa5, 0x8a, 0x3e, 0x23,

  0x64, 0x08, 0xc8, 0xa1, 0xa0, 0xf0, 0x5d, 0x70,

  0xd2, 0x77, 0xfd, 0xc8, 0x50, 0x83, 0x0f, 0xd6,

  0x2b, 0xe4, 0x1f, 0x52, 0x34, 0x33, 0x68, 0xfd,

  0x92, 0xbe, 0x9f, 0x97, 0x6b, 0x8d, 0x81, 0x91,

  0x0f, 0xef, 0x65, 0xc8, 0x0d, 0x15, 0x01, 0x77,

  0x58, 0xb2, 0xf4, 0x1b, 0x06, 0x7e, 0xf5, 0xca,

  0x15, 0x2e, 0x38, 0xd8, 0x81, 0x1c, 0x1c, 0xa0,

  0xb6, 0x13, 0x6a, 0x2b, 0x71, 0x34, 0x52, 0xd7,

  0x1d, 0xbd, 0x37, 0x59, 0xbc, 0x86, 0x25, 0x2b,

  0xa8, 0x93, 0xce, 0x1a, 0x03, 0x16, 0xfe, 0x01,

  0x57, 0x99, 0x24, 0x25, 0x2c, 0xb3, 0xab, 0x1e,

  0x2d, 0x65, 0x20, 0x89, 0x17, 0x02, 0x0e, 0x0a,

  0xf5, 0x1e, 0xc7, 0xff, 0x1f, 0x61, 0xa9, 0x54,

  0x18, 0xd4, 0xba, 0x50, 0x57, 0x02, 0xa1, 0xab,

  0x22, 0x2e, 0x07, 0xea, 0xa9, 0xa3, 0x83, 0x4f,

  0x27, 0xf5, 0xc5, 0xee, 0x3c, 0x3b, 0x10, 0xad,

  0x32, 0x2b, 0x1c, 0x03, 0xcb, 0xaf, 0x98, 0x83,

  0x54, 0xc3, 0x68, 0x63, 0xd4, 0xe0, 0x0e, 0x3c,

  0x1a, 0x4e, 0xc0, 0x81, 0xd0, 0xe8, 0x6a, 0x62,

  0x6b, 0x3e, 0x6f, 0xc4, 0xc6, 0x33, 0x4e, 0x26,

  0x21, 0xf5, 0x04, 0xdf, 0xfa, 0xce, 0x45, 0xaf,

  0xdc, 0x5e, 0x1b, 0xad, 0x93, 0xca, 0xf5, 0xcf,

  0xd7, 0xee, 0x0c, 0x5c, 0x5e, 0xb4, 0xf0, 0x92,

  0xd2, 0xf2, 0xf0, 0xa9, 0x1e, 0xab, 0x80, 0x68,

  0x46, 0xef, 0xcc, 0x26, 0x0c, 0x5c, 0xdd, 0x4e,

  0x83, 0xb8, 0xb9, 0x53, 0x6e, 0xf8, 0x93, 0x38,

  0x67, 0xa4, 0x41, 0x87, 0x72, 0xe7, 0x7e, 0x86,

  0xc9, 0x49, 0x00, 0x33, 0xb1, 0x38, 0x6c, 0x71,

  0xd7, 0x1d, 0x8e, 0x61, 0x01, 0xb6, 0x57, 0xa9,

  0xf1, 0xac, 0x15, 0xc2, 0x83, 0x77, 0xca, 0x64,

  0xca, 0x7b, 0x6c, 0xa1, 0x10, 0x1b, 0x13, 0xd0,

  0xd3, 0x9e, 0x9e, 0x10, 0x70, 0xc8, 0x1a, 0xbb,

  0x3f, 0x19, 0x86, 0xab, 0x01, 0x0e, 0xea, 0x34,

  0x22, 0xea, 0xe2, 0x15, 0xb7, 0xed, 0x21, 0x21,

  0x75, 0xa5, 0xe7, 0x08, 0xa1, 0x38, 0xe0, 0x91,

  0x05, 0x60, 0xea, 0xa7, 0x50, 0x27, 0x18, 0x07,

  0x9d, 0xe0, 0x18, 0x2b, 0xd4, 0x07, 0x59, 0x00,

  0xe6, 0x45, 0x18, 0x2a, 0x30, 0x6e, 0xf3, 0xb4,

  0xd0, 0xef, 0xa6, 0x5b, 0x71, 0xa2, 0x5a, 0x3b,

  0x89, 0x4c, 0xaf, 0x3f, 0xcb, 0x9f, 0x03, 0xfb,

  0x43, 0x7c, 0x6b, 0xd3, 0x6a, 0xea, 0xce, 0x4a,

  0x5f, 0x64, 0xb5, 0x62, 0xda, 0x5d, 0x27, 0xb7,

  0xb8, 0x11, 0xca, 0x33, 0x30, 0xec, 0x70, 0xf0,

  0x1b, 0x03, 0x50, 0xff, 0x5e, 0xa6, 0x08, 0xde,

  0x37, 0x70, 0xc0, 0x81, 0x55, 0x60, 0x17, 0xa1,

  0x85, 0xae, 0x26, 0x44, 0xe4, 0x67, 0x3c, 0x91,

  0xfd, 0xc4, 0x3d, 0x97, 0x72, 0x23, 0xf3, 0x3c,

  0x8f, 0xe0, 0xe2, 0xf2, 0x09, 0x96, 0x10, 0x67,

  0xb5, 0xfe, 0xff, 0x3d, 0x4a, 0xc8, 0x62, 0x11,

  0xa5, 0x98, 0xc1, 0x2d, 0x40, 0x82, 0x88, 0x8b,

  0xe5, 0xb0, 0x75, 0xbf, 0x2f, 0xa8, 0x6a, 0x55,

  0x49, 0x2e, 0x9c, 0x29, 0xd2, 0x7c, 0xbf, 0xf3,

  0xaa, 0x3a, 0x16, 0x4a, 0xa4, 0x15, 0xf3, 0x48,

  0xde, 0x38, 0x13, 0x44, 0x26, 0x02, 0xe6, 0xe9,

  0xa8, 0x24, 0x89, 0xb5, 0x43, 0x95, 0xe4, 0x4c,

  0xc3, 0xa0, 0xdf, 0xcc, 0x42, 0xf8, 0x8d, 0xb0,

  0x3b, 0xea, 0x10, 0xb7, 0xe1, 0x40, 0x54, 0xb9,

  0xa3, 0x2d, 0xfb, 0xb4, 0x91, 0xc0, 0x3e, 0x94,

  0xf1, 0xa1, 0x3c, 0xbe, 0xef, 0xb8, 0x70, 0x55,

  0x0a, 0x26, 0x93, 0xbf, 0xe6, 0x21, 0x92, 0x32,

  0x3c, 0x39, 0x27, 0x6a, 0x23, 0x48, 0x02, 0x35,

  0x3c, 0xd4, 0xcc, 0x04, 0xc0, 0x4e, 0xa7, 0x02,

  0x63, 0x37, 0xc2, 0xb8, 0x56, 0x1d, 0x57, 0x57,

  0x42, 0x04, 0x8d, 0xee, 0xcf, 0x8b, 0xc9, 0xc3,

  0xba, 0x3b, 0x15, 0xd7, 0xaf, 0xbf, 0x9e, 0xcd,

  0x44, 0xcf, 0xf0, 0x00, 0xb7, 0x3a, 0xfc, 0xa8,

  0x12, 0xab, 0x3a, 0x62, 0x01, 0x21, 0x46, 0xe9,

  0x1e, 0x48, 0x37, 0xfc, 0x13, 0x4d, 0xf6, 0x2a,

  0x72, 0x40, 0x75, 0x38, 0x71, 0xf2, 0x17, 0x20,

  0x2c, 0xdd, 0xc0, 0x49, 0xbc, 0x63, 0x33, 0xea,

  0x06, 0x75, 0x41, 0xe7, 0x5c, 0x1f, 0xfb, 0xf9,

  0x68, 0x83, 0xc2, 0x5a, 0x4a, 0x1e, 0x61, 0x08,

  0x57, 0xf3, 0x00, 0xba, 0x77, 0x92, 0x63, 0xa5,

  0xb7, 0xfe, 0x97, 0x22, 0xda, 0x5e, 0xd3, 0xaf,

  0xbc, 0x89, 0x0d, 0x4c, 0x37, 0xa9, 0x27, 0x4a,

  0x7f, 0xdb, 0x81, 0x39, 0x11, 0x86, 0x12, 0xf9,

  0x10, 0x50, 0xe4, 0xdb, 0x72, 0xf9, 0xae, 0x10,

  0x7c, 0xed, 0x50, 0x5c, 0x61, 0xeb, 0x42, 0x1e,

  0xa4, 0xf4, 0xf0, 0xfa, 0x45, 0x4d, 0x95, 0x2b,

  0xd4, 0x67, 0x4a, 0xe3, 0x8a, 0x15, 0x55, 0x92,

  0x77, 0x64, 0x8c, 0x51, 0x38, 0xf9, 0x26, 0x3e,

  0x68, 0xe2, 0xac, 0xbb, 0x64, 0x77, 0xe2, 0x82,

  0xa4, 0x42, 0x41, 0x38, 0xa0, 0xf0, 0xc9, 0xd8,

  0x6c, 0xe0, 0xef, 0x4c, 0xda, 0xb4, 0x92, 0xef,

  0x1b, 0xe3, 0x9b, 0xc1, 0x44, 0x3c, 0xb9, 0xb7,

  0x39, 0xac, 0x5c, 0x32, 0x39, 0xb4, 0x21, 0x85,

  0x93, 0xbc, 0xf2, 0x51, 0x43, 0xb7, 0xae, 0x1e,

  0x61, 0x9c, 0x38, 0x9c, 0xaa, 0xff, 0xde, 0xfc,

  0xbf, 0x85, 0xef, 0x17, 0x34, 0x36, 0x71, 0x5f,

  0x04, 0x16, 0xa6, 0x9e, 0xfd, 0x3a, 0x03, 0xd8,

  0xbf, 0x71, 0x70, 0x20, 0x8f, 0x7c, 0xfb, 0xff,

  0x61, 0xe0, 0xe2, 0x60, 0xa7, 0xb1, 0xc0, 0xe0,

  0xd9, 0x3f, 0xdc, 0x8d, 0x4a, 0xa4, 0x52, 0x61,

  0xaf, 0x9d, 0xdf, 0x8a, 0x0d, 0x41, 0xc0, 0x25,

  0x68, 0x12, 0x7b, 0xd5, 0xc7, 0xdb, 0x68, 0x70,

  0x2d, 0x7d, 0x95, 0x12, 0x03, 0x23, 0x0c, 0xe8,

  0x14, 0x41, 0x11, 0x28, 0xec, 0x9d, 0xd3, 0x28,

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  0x12, 0xe4, 0x88, 0x82, 0x48, 0x64, 0x06, 0xd7,

  0x2a, 0x31, 0x50, 0x7b, 0x10, 0x17, 0xb8, 0x4c,

  0x5a, 0x8d, 0xf1, 0xfc, 0xf1, 0x33, 0x3b, 0x98,

  0x42, 0x18, 0x5b, 0x35, 0x78, 0xca, 0x8e, 0x41,

  0x52, 0xae, 0x6d, 0xe1, 0xa2, 0x9d, 0x5b, 0xbd,

  0xf3, 0x5f, 0x49, 0xc1, 0x27, 0x06, 0xc1, 0xaf,

  0xc0, 0xa3, 0x9d, 0xf3, 0x1c, 0x8e, 0x90, 0x8a,

  0xb0, 0x69, 0xb0, 0xc5, 0x11, 0x0c, 0x91, 0x14,

  0x1f, 0x5e, 0x10, 0xe1, 0x1d, 0x14, 0x30, 0x54,

  0x1e, 0x17, 0x3d, 0x31, 0x7b, 0xbf, 0x2f, 0x9d,

  0x6d, 0x63, 0x32, 0xf0, 0x9d, 0x9f, 0x95, 0x3d,

  0x0b, 0xd2, 0x4d, 0x10, 0xe2, 0x3f, 0x67, 0x69,

  0x43, 0x9a, 0x4a, 0x2c, 0x54, 0x71, 0xa8, 0xa0,

  0x9e, 0x9f, 0x10, 0xaf, 0x1b, 0xce, 0x99, 0xe3,

  0x25, 0x32, 0x10, 0x54, 0x80, 0xfe, 0xda, 0x57,

  0xd0, 0xb2, 0x92, 0x7f, 0xbb, 0x5f, 0xe7, 0x4d,

  0x1b, 0x3d, 0x46, 0x4d, 0xe4, 0x4c, 0xd6, 0xaf,

  0x1a, 0x32, 0x12, 0x40, 0xb8, 0x84, 0x8e, 0xe4,

  0x80, 0xce, 0x7e, 0xc1, 0x13, 0x8b, 0xb0, 0xb7,

  0x6f, 0x24, 0xba, 0x85, 0x50, 0x83, 0xc3, 0xcf,

  0x19, 0xb3, 0xf0, 0xc7, 0xee, 0x68, 0xbe, 0x9e,

  0x6d, 0xb9, 0xfb, 0xd5, 0x29, 0xce, 0x82, 0xcd,

  0x69, 0x16, 0x68, 0x6b, 0x6a, 0xf4, 0x02, 0x32,

  0xce, 0x60, 0x37, 0x0c, 0xb9, 0x38, 0x92, 0x9c,

  0x42, 0xa9, 0x0b, 0x53, 0x96, 0xfe, 0x39, 0xc1,

  0x24, 0x65, 0x9b, 0xcd, 0xe7, 0x8d, 0x36, 0x07,

  0x9f, 0x1d, 0x35, 0x8e, 0xdc, 0x4c, 0xb5, 0x68,

  0xc5, 0xfd, 0x44, 0x19, 0xf2, 0x6c, 0x59, 0x1c,

  0xb1, 0x0b, 0x35, 0x48, 0x86, 0x1a, 0x05, 0x22,

  0x03, 0x0c, 0x0c, 0xa2, 0x92, 0x90, 0x35, 0xfb,

  0x37, 0x94, 0xc7, 0x15, 0x84, 0xae, 0xe8, 0x05,

  0xa0, 0xf7, 0x30, 0x11, 0x5c, 0xe4, 0x5d, 0x3e,

  0x12, 0x54, 0x80, 0x54, 0x6b, 0x09, 0x8c, 0xce,

  0x80, 0x5e, 0xa7, 0xc8, 0x6a, 0x0c, 0x56, 0xe1,

  0x18, 0x7d, 0xc9, 0x39, 0xc1, 0xef, 0xe3, 0x25,

  0xa0, 0x8b, 0x2f, 0x60, 0x3a, 0x43, 0x39, 0xa6,

  0x28, 0x28, 0x7b, 0x4c, 0x77, 0xd4, 0x49, 0x61,

  0x46, 0xe9, 0x1b, 0x45, 0xd6, 0xb1, 0x56, 0xe1,

  0x7d, 0x34, 0xcd, 0x06, 0xb6, 0x67, 0x8d, 0x7d,

  0x7a, 0xe2, 0xbe, 0x68, 0x35, 0xa6, 0x78, 0xe5,

  0x47, 0x48, 0xb7, 0xc7, 0xde, 0xcd, 0xc9, 0x05,

  0xb4, 0xe7, 0x50, 0x48, 0xe1, 0x4b, 0xfe, 0x76,

  0x77, 0xc6, 0xf7, 0x5f, 0xcb, 0xc2, 0xa8, 0xd7,

  0xd6, 0x8a, 0xe5, 0x49, 0xd9, 0xca, 0x45, 0xf4,

  0xda, 0xcd, 0x33, 0xd1, 0x59, 0x2d, 0x9e, 0xc1,

  0x5c, 0xe6, 0x01, 0x18, 0xb8, 0xf0, 0x5e, 0xb1,

  0x69, 0x95, 0x2f, 0x02, 0x2a, 0xe7, 0x4a, 0xd7,

  0xd1, 0xc3, 0xd5, 0x6f, 0x15, 0xc8, 0xdc, 0x29,

  0xde, 0xb9, 0x3f, 0x8b, 0xa6, 0xbc, 0xdd, 0x25,

  0x84, 0x35, 0x3c, 0x90, 0x2d, 0xc2, 0x1e, 0x98,

  0x8a, 0x50, 0x09, 0x77, 0x42, 0xe9, 0x35, 0x8a,

  0x7c, 0x97, 0xbf, 0xe8, 0xbf, 0x56, 0xd0, 0x8b,

  0x65, 0xd3, 0xaf, 0x1e, 0x05, 0x94, 0xfa, 0xac,

  0xa8, 0x2b, 0x28, 0xcb, 0x37, 0x3e, 0xe8, 0xbb,

  0x66, 0x3a, 0xed, 0xb2, 0x48, 0x10, 0x0f, 0x3a,

  0x5a, 0xc5, 0xdb, 0x26, 0x0e, 0xaa, 0x5e, 0x69,

  0x15, 0xd6, 0x81, 0xae, 0xbd, 0xe6, 0x03, 0xf1,

  0xf6, 0x37, 0xc8, 0xde, 0x70, 0x1f, 0x64, 0xb9,

  0x5e, 0xbf, 0x2e, 0x4f, 0xb1, 0xea, 0xa0, 0x17,

  0xe6, 0x7c, 0xf9, 0x2f, 0x1e, 0xd8, 0x58, 0xde,

  0xa7, 0xf0, 0x46, 0x52, 0x95, 0xdf, 0xa4, 0x96,

  0xd0, 0xc4, 0x97, 0x2b, 0x95, 0xcd, 0x5e, 0x40,

  0x23, 0x5c, 0x10, 0xee, 0xba, 0x72, 0x9b, 0xcf,

  0x0b, 0xe8, 0x18, 0x3a, 0x70, 0xd2, 0x5e, 0x07,

  0x68, 0x93, 0xef, 0x4a, 0x5b, 0x8d, 0x72, 0x41,

  0x4e, 0xea, 0x33, 0x6a, 0x0a, 0x5e, 0xfb, 0x02,

  0x3f, 0xd4, 0xed, 0x5b, 0xe0, 0x42, 0x84, 0xd4,

  0xaa, 0x85, 0xdc, 0x5b, 0x67, 0xee, 0x71, 0x67,

  0xba, 0x8e, 0xd2, 0xbe, 0x61, 0xdf, 0x5a, 0x26,

  0xb9, 0xf0, 0x77, 0x81, 0x53, 0x24, 0x16, 0xcb,

  0x8c, 0xb8, 0x06, 0x6e, 0x68, 0xda, 0xc8, 0x2d,

  0x17, 0x54, 0xdb, 0x46, 0xcb, 0xfd, 0x1f, 0x3d,

  0x94, 0x81, 0x09, 0x4b, 0xfa, 0xb1, 0x46, 0xd9,

  0x11, 0xa3, 0xb7, 0x31, 0x9c, 0xd2, 0x38, 0xd6,

  0xba, 0x3d, 0xa3, 0x74, 0xd8, 0xf1, 0x24, 0xe8,

  0x9c, 0xcb, 0x1d, 0xf9, 0x4a, 0xf7, 0xc8, 0x4b,

  0xfe, 0x97, 0x7c, 0xa1, 0x02, 0xeb, 0x40, 0xc3,

  0x89, 0x71, 0x01, 0xcd, 0x33, 0x2a, 0xc2, 0x82,

  0xce, 0x62, 0x8d, 0x53, 0x7c, 0xdf, 0xce, 0xd7,

  0xf5, 0xa8, 0x4f, 0xf2, 0xf2, 0x2e, 0xc1, 0xeb,

  0x97, 0x99, 0x37, 0x3c, 0x53, 0xa6, 0xb4, 0x46,

  0x05, 0x64, 0x92, 0x87, 0x08, 0x3c, 0x23, 0x4b,

  0x9d, 0x67, 0x18, 0xf9, 0xe2, 0x0b, 0x1c, 0x39,

  0xd3, 0x87, 0x70, 0xc0, 0xb9, 0x1e, 0x52, 0x0a,

  0x0f, 0x48, 0xe2, 0xe7, 0x51, 0x72, 0x94, 0xf7,

  0xa3, 0xdc, 0xe5, 0x66, 0x33, 0x39, 0x54, 0x06,

  0x55, 0x93, 0x30, 0xf9, 0x5e, 0x76, 0x8f, 0xe0,

  0x59, 0x4d, 0x0d, 0xa7, 0xf5, 0xbe, 0xdb, 0x20,

  0xad, 0x0d, 0x76, 0x88, 0x5f, 0x9c, 0x7c, 0x75,

  0x2f, 0x2a, 0x0b, 0x79, 0x6e, 0xd3, 0xe2, 0x66,

  0xf5, 0x4a, 0x2d, 0x87, 0x87, 0x49, 0x84, 0x17,

  0xa2, 0x62, 0x4c, 0xbb, 0xe4, 0x6e, 0x98, 0x10,

  0xc9, 0xfb, 0x8a, 0x04, 0x68, 0x8d, 0x22, 0x66,

  0xad, 0xea, 0x2a, 0xc9, 0x97, 0x2d, 0x3c, 0xbc,

  0xd0, 0x77, 0x5f, 0xe6, 0xb8, 0x7f, 0xe6, 0xf6,

  0x39, 0xbf, 0x56, 0x0e, 0x26, 0x6d, 0xc5, 0x3e,

  0x53, 0x19, 0xd6, 0xb4, 0x57, 0x36, 0xa3, 0xc6,

  0xd3, 0x3d, 0x66, 0x79, 0x30, 0x5c, 0x14, 0x0c,

  0x0f, 0x3e, 0x96, 0xae, 0x90, 0x97, 0xab, 0x0d,

  0x9f, 0xc3, 0xe7, 0x66, 0x3e, 0xe0, 0x31, 0x43,

  0x4b, 0x01, 0xb3, 0x0e, 0x9e, 0x8c, 0x82, 0x4a,

  0x8c, 0xc7, 0x79, 0x85, 0xdf, 0x75, 0x0d, 0xb4,

  0x2b, 0x03, 0x14, 0xef, 0x72, 0x58, 0xfd, 0x64,

  0xc8, 0xe3, 0x0d, 0x9a, 0x14, 0x6f, 0x76, 0xf9,

  0x46, 0xd1, 0xd2, 0x81, 0xb3, 0x16, 0x6e, 0xc7,

  0x76, 0x82, 0xce, 0xf4, 0xee, 0x33, 0x00, 0xe6,

  0x77, 0xc4, 0xad, 0x4f, 0x06, 0xa7, 0x48, 0x80,

  0x9e, 0x21, 0x66, 0xca, 0x75, 0x69, 0x57, 0xcb,

  0xf0, 0x67, 0x6a, 0xaa, 0x8f, 0x88, 0x14, 0xbd,

  0x65, 0x62, 0xe2, 0xad, 0xcc, 0x22, 0x88, 0x7b,

  0x94, 0xbd, 0x0e, 0xcd, 0xb6, 0x69, 0xa2, 0xcb,

  0x7d, 0x57, 0x5c, 0xb4, 0x92, 0x80, 0x13, 0x99,

  0x84, 0xf3, 0x79, 0x0a, 0x2d, 0x70, 0xa4, 0xe0,

  0xde, 0xc6, 0x32, 0xb0, 0x8a, 0x62, 0xb5, 0xcf,

  0xfa, 0x5e, 0x5a, 0x92, 0x32, 0x7d, 0x34, 0x07,

  0xb5, 0x52, 0x3a, 0xb5, 0x7d, 0x0f, 0xa1, 0xba,

  0x56, 0xd0, 0x07, 0x76, 0x11, 0xf2, 0xc3, 0x33,

  0x9d, 0xbd, 0x12, 0x35, 0x5e, 0xf7, 0x05, 0x88,

  0x76, 0x94, 0xa6, 0xbf, 0xed, 0xb8, 0xa4, 0xa2,

  0x0c, 0xbe, 0x0f, 0x6a, 0xaf, 0xf3, 0x1b, 0x33,

  0x4a, 0xb7, 0x68, 0x3f, 0xbe, 0x95, 0x13, 0x97,

  0x0f, 0x15, 0x17, 0x1b, 0x23, 0xaa, 0x08, 0x78,

  0xa6, 0x5b, 0x08, 0xa2, 0x9d, 0x03, 0xa8, 0xa7,

  0x39, 0xdc, 0xbc, 0x9a, 0x85, 0xf5, 0xe5, 0x55,

  0x59, 0x3c, 0xef, 0xf9, 0x3f, 0x22, 0x8e, 0xf8,

  0xd8, 0x3e, 0x02, 0x0b, 0xd8, 0x78, 0x4b, 0x15,

  0x7f, 0xaa, 0x2c, 0xff, 0xbe, 0x77, 0x33, 0xc7,

  0x6a, 0x12, 0xaa, 0xa4, 0xbe, 0xc0, 0x3b, 0xcb,

  0x13, 0x9d, 0x9c, 0x5a, 0x9f, 0x8a, 0x57, 0x36,

  0x4f, 0x02, 0x5a, 0xf8, 0x1d, 0x97, 0x77, 0x43,

  0xc8, 0xa5, 0xb7, 0x9b, 0x10, 0x98, 0xfd, 0x58,

  0xbf, 0x42, 0xf6, 0xbf, 0xff, 0x6c, 0x40, 0x18,

  0x18, 0xdf, 0xac, 0x57, 0x71, 0xea, 0xcc, 0x8e,

  0xfd, 0xfe, 0x10, 0xfb, 0xb9, 0xfe, 0xbc, 0x9a,

  0x9c, 0x27, 0xe4, 0x10, 0x15, 0x94, 0x41, 0xa1,

  0xcc, 0xf6, 0x25, 0x49, 0x4f, 0x96, 0xc1, 0x8c,

  0x9e, 0x3e, 0x18, 0x29, 0x49, 0x92, 0xe7, 0xfe,

  0x22, 0xff, 0xed, 0x02, 0x16, 0x90, 0xef, 0xac,

  0xec, 0x95, 0x1d, 0x5b, 0x94, 0x9c, 0xf6, 0x7c,

  0x1b, 0x5a, 0x9d, 0xb0, 0x9b, 0x05, 0x36, 0xbf,

  0xef, 0xec, 0x63, 0x35, 0x40, 0x24, 0x45, 0x40,

  0x30, 0x1a, 0x9b, 0x90, 0xc3, 0xc2, 0xf7, 0x37,

  0xfb, 0x08, 0x8e, 0x48, 0x19, 0x48, 0xed, 0xa8,

  0xa8, 0x04, 0x6f, 0xd0, 0x33, 0xe9, 0xb8, 0x8d,

  0xe7, 0x1e, 0x5c, 0x47, 0x74, 0xc0, 0x66, 0x30,

  0x4e, 0xa7, 0x86, 0x73, 0xf1, 0xe5, 0x78, 0xa6,

  0xe0, 0xc1, 0xda, 0x13, 0x72, 0x07, 0x85, 0x34,

  0x63, 0x95, 0x49, 0x30, 0x4b, 0x9d, 0x03, 0xf1,

  0x7a, 0x6b, 0x91, 0xa2, 0x85, 0x41, 0xf9, 0x4a,

  0xd6, 0xff, 0xff, 0x86, 0xf7, 0xf0, 0xce, 0xb9,

  0x07, 0xf1, 0x88, 0x04, 0x33, 0xaa, 0xeb, 0x54,

  0xb2, 0x1c, 0x8e, 0x2e, 0x7b, 0x04, 0xa8, 0xcc,

  0x2c, 0x7a, 0xb3, 0xad, 0x1a, 0x89, 0x38, 0x89,

  0xd7, 0x11, 0x3a, 0x8c, 0xcf, 0xe3, 0xc5, 0xba,

  0xb0, 0xcc, 0xc4, 0xe3, 0x33, 0xf3, 0x18, 0xba,

  0xec, 0x56, 0xd9, 0x1c, 0x40, 0x70, 0x0d, 0x4e,

  0x97, 0x01, 0x23, 0xf3, 0x5a, 0xdc, 0xbf, 0x68,

  0x93, 0xc2, 0x1d, 0x8a, 0x96, 0xb7, 0xac, 0x18,

  0x6f, 0xf7, 0x84, 0x71, 0x0d, 0x3d, 0xf8, 0xba,

  0xdf, 0xb6, 0x89, 0x1d, 0x78, 0x19, 0xf2, 0x59,

  0xe9, 0x15, 0x55, 0x29, 0x73, 0x50, 0x59, 0x14,

  0x02, 0x21, 0x16, 0x8f, 0x0f, 0xdf, 0xa5, 0xf0,

};

static struct crc_test {

  uint32_t crc;   /* random starting crc */

  uint32_t start;   /* random offset in buf */

  uint32_t length;  /* random length of test */

  uint32_t crc32c_le; /* expected crc32c_le result */

  uint32_t crc32_be;  /* expected crc32_be result */

} test[] = {

  {0xffffffff, 0x00000000, 0x00001000, 0x13934bef, 0xd8ddcdc3},

  {0xfe7328ea, 0x00000763, 0x00000717, 0xed2c0d70, 0xc863aef8},

  {0x4c40684e, 0x00000721, 0x0000011e, 0xd7f46ccc, 0x173a11c4},

  {0x6b487f90, 0x00000264, 0x000007bc, 0x759e9939, 0xd6307c56},

  {0x9f5810db, 0x00000afa, 0x00000255, 0x2685197f, 0x2e5c9201},

  {0xb15c4755, 0x00000d5b, 0x000002a4, 0xd8fadcb5, 0xf682c4be},

  {0x06518253, 0x00000ffb, 0x00000004, 0xabee2433, 0x3d8abdf9},

  {0xd9e71c55, 0x00000a2a, 0x00000259, 0x96682af2, 0x47b4d26c},

  {0x0c1ae843, 0x00000ce4, 0x0000031b, 0x7b637c43, 0x62b47e8b},

  {0xec3cd517, 0x000002ff, 0x00000566, 0x5d719a77, 0xff5bc5b7},

  {0x77828e95, 0x0000067f, 0x0000038f, 0x43ee5b6c, 0x1a0cfacd},

  {0xec87b4e3, 0x00000d1c, 0x000002e3, 0x2ddd2eee, 0x275118a7},

  {0x412158bb, 0x00000eee, 0x00000111, 0x67b38ba2, 0xa74ecff5},

  {0x2e52de3e, 0x00000c4a, 0x000003b5, 0xbcc5d61d, 0xbd800707},

  {0x6ddaae8b, 0x00000d99, 0x00000266, 0x8b535544, 0xecbde1a1},

  {0x049b6cb1, 0x000009c5, 0x000000b0, 0xfc22cabc, 0xfb78eb9f},

  {0x77d4b954, 0x0000028a, 0x000007fa, 0x71d00923, 0x8c116f85},

  {0x5e192355, 0x00000ac1, 0x000001fa, 0xb966b81a, 0x5aa17bbe},

  {0x7d80b71d, 0x00000213, 0x000001e0, 0x2bba371a, 0xb5906aa6},

  {0x01f6f1e4, 0x000001d6, 0x00000395, 0xb7e8a647, 0x3ad112b1},

  {0x1dfabb13, 0x00000e14, 0x000001eb, 0x53917fba, 0xbaee0339},

  {0xb00a4449, 0x00000bf6, 0x00000409, 0xedecb577, 0x6f3a3979},

  {0x7ecd3981, 0x0000083f, 0x0000016b, 0xefef62b9, 0xe3e52eed},

  {0xf8f330d2, 0x000004be, 0x00000757, 0x9357c9f3, 0x0835bc1b},

  {0x03c38af2, 0x00000d23, 0x000002dc, 0x360fa8c0, 0x2ca885e6},

  {0x687bb79b, 0x00000f3d, 0x000000c2, 0x448d3be2, 0x79be2f78},

  {0x6710f550, 0x000009e9, 0x00000603, 0xdbfd1998, 0x1d25f627},

  {0x873171d1, 0x00000787, 0x000004d5, 0xab7f1b62, 0xa76a5656},

  {0x373b1314, 0x00000f0f, 0x000000f0, 0x184098ab, 0xba273974},

  {0x90fad9cd, 0x00000ead, 0x00000152, 0x23ce52ff, 0xb7bc958c},

  {0x19676fe7, 0x0000007d, 0x0000070d, 0xf8a76f1e, 0xf882b644},

  {0x89facd45, 0x000005f3, 0x00000473, 0x4331a006, 0xe9dc1396},

  {0x6f173747, 0x00000fc3, 0x0000003c, 0xb012f08e, 0xc6b888ee},

  {0x4b44a106, 0x0000075a, 0x0000008b, 0xf6f7ac38, 0x60cd2b74},

  {0xb620ad06, 0x00000774, 0x0000017e, 0xd34558e6, 0x3a0a615b},

  {0x976f21e9, 0x000008d7, 0x0000034a, 0xe533aa3a, 0xa99e60be},

  {0x687628c0, 0x000006c5, 0x0000061b, 0x3a840b15, 0x9bfcaef2},

  {0xe24ac108, 0x00000cd0, 0x0000032f, 0x51010ae8, 0x20958672},

  {0x361c44a3, 0x00000304, 0x00000719, 0xfd7bd481, 0xd70ff2b2},

  {0xd93ff95e, 0x00000db7, 0x0000008e, 0xcfbbc304, 0xad716acd},

  {0xed752d12, 0x00000883, 0x00000091, 0x65a6c868, 0x95c71c7b},

  {0xb4ff4b54, 0x000003d3, 0x000001c1, 0xf82597e7, 0x44b7f99b},

  {0x111b520f, 0x00000708, 0x000000eb, 0xc3e109f3, 0x71bc01ee},

  {0x62c806f2, 0x00000ba3, 0x0000045c, 0x874d3a72, 0xc539b753},

  {0x40d97470, 0x000005e1, 0x0000058d, 0x87a9684f, 0xea6073a5},

  {0x4312179c, 0x00000056, 0x0000070e, 0x809a00f5, 0x209aea3b},

  {0x13d5f84c, 0x00000a2d, 0x00000104, 0xf3d27578, 0xe087a8b6},

  {0x1f302cb2, 0x00000151, 0x00000014, 0x1e162693, 0x95e4b90e},

  {0xe491db24, 0x00000600, 0x000006f6, 0x7ff09615, 0x77611523},

  {0xf9a98069, 0x000002ba, 0x000002ad, 0x01af7387, 0xea925faa},

  {0xe9c477ad, 0x0000015f, 0x00000778, 0x6facf9a0, 0x1130f736},

  {0x353f32b2, 0x0000087c, 0x00000783, 0x6cc964ea, 0x32459994},

  {0x78e1b24f, 0x00000650, 0x000006a8, 0xb3bb7c27, 0x5a632f78},

  {0x61aa400e, 0x00000049, 0x00000254, 0xb8cd1681, 0xdf2652d5},

  {0xb84b10b0, 0x00000f73, 0x0000008c, 0x406a6450, 0x3619d31b},

  {0x9fa99c9c, 0x00000a7c, 0x000004d7, 0xfb3d21b4, 0xea31c743},

  {0x3fc9ebe3, 0x00000cd9, 0x000000d6, 0x43803f9c, 0x1f76a809},

  {0x529879cd, 0x000002f2, 0x00000595, 0x78b4c6a6, 0x63b9b93f},

  {0x3a933019, 0x00000516, 0x00000266, 0xdcb45436, 0x8f99c98c},

  {0x887b4977, 0x00000227, 0x0000038d, 0xc5f7c3d9, 0xaf5e3091},

  {0x770745de, 0x000008c6, 0x00000739, 0xf69145e8, 0x53d0dce1},

  {0x28be3b47, 0x00000c46, 0x0000032b, 0x764c028f, 0x106d0905},

  {0x5013a050, 0x00000cf6, 0x00000309, 0xea8fe164, 0x62180b57},

  {0x2ec4c9ba, 0x000006e8, 0x0000078d, 0xa35557a9, 0xf44430a4},

  {0xa9f950c9, 0x00000d33, 0x000002cc, 0x41ea8618, 0x587b4eb3},

  {0x5b520229, 0x000007b2, 0x00000484, 0x44569f1f, 0x92406c32},

  {0xd8dcbbfc, 0x0000002f, 0x0000048c, 0xdb88ab8b, 0x13bfe70e},

  {0x25529792, 0x00000d1d, 0x000002e2, 0x20cda404, 0x19d3b4e4},

  {0x9f3f6d71, 0x00000238, 0x0000079a, 0x0720443e, 0x3c107021},

  {0x64121215, 0x000007ff, 0x0000038f, 0x6aacff2c, 0xb82fdc3e},

  {0xfb6cdde0, 0x00000ef8, 0x00000107, 0xbd43a0f1, 0xab0d3c1d},

  {0x221c9d6f, 0x000007b6, 0x0000014f, 0xb67f834b, 0x1371ad05},

  {0x030e1de4, 0x00000836, 0x000004b4, 0x0d67d26a, 0xe2e72df1},

  {0xb56fa6cf, 0x00000c07, 0x000003f8, 0x60601ac1, 0x039de73e},

  {0xb55c89f5, 0x0000098e, 0x000001d4, 0x2400efbe, 0xfe39a2bb},

  {0x5e90b6d5, 0x0000070b, 0x000003ea, 0x3bb5d6ea, 0xf0f794a0},

  {0x2a7045ae, 0x00000961, 0x00000633, 0xfca89e4b, 0xe66ce41c},

  {0x8b374ea9, 0x000006ba, 0x00000780, 0xbce036ed, 0x4cb28ef7},

  {0x8bd90bc9, 0x00000562, 0x00000369, 0xcb26a24b, 0x40236d1d},

  {0x5b1b1762, 0x000000fd, 0x0000051a, 0x33cdda07, 0xc32e420a},

  {0xa4153555, 0x0000058f, 0x000005c7, 0xbe50eeca, 0x83a67f35},

  {0x0be1f931, 0x00000651, 0x00000672, 0x95a25753, 0x88f1aac1},

  {0xb7e78618, 0x00000a7f, 0x000002bb, 0xe06bcc1c, 0x74274f66},

  {0x4a9bc41b, 0x00000e51, 0x000001ae, 0x709e8d2c, 0x54eff534},

  {0xfc359d13, 0x00000440, 0x000002f8, 0x0a58451f, 0x55e9363f},

  {0x5aa48619, 0x000006d1, 0x00000284, 0x928ead83, 0x31041c06},

  {0xa609afa8, 0x0000053e, 0x00000272, 0xb048c141, 0x4704efba},

  {0x3f108afb, 0x00000949, 0x00000150, 0x9a6bb5bc, 0x4e4430c8},

  {0x79bec2d3, 0x000008ed, 0x00000712, 0x32692d57, 0x11d52a7b},

  {0x9429e067, 0x00000bc3, 0x0000043c, 0x5295ceff, 0x04640f4d},

  {0xae58b96a, 0x0000082d, 0x000007d2, 0xc2a681ba, 0xf7ca4a2c},

  {0x95df24be, 0x00000985, 0x000004c1, 0x3a287765, 0x2c4af003},

  {0x5e94976f, 0x00000596, 0x000004ed, 0xff00c489, 0x5ae11687},

  {0xf5e5f1de, 0x00000d31, 0x000002ce, 0x35f28e91, 0x30d47957},

  {0xa2c219cf, 0x00000a3c, 0x00000374, 0x707d21eb, 0x2a14a255},

  {0xf21b6ceb, 0x00000919, 0x00000135, 0x0847fb8b, 0xcb8d3b93},

  {0xaa988728, 0x00000787, 0x00000771, 0x885aeaa4, 0x6531b509},

  {0xaa5dfaac, 0x000003e5, 0x0000051b, 0x52c48ab7, 0xe43cc5e9},

  {0x0a053968, 0x00000d2a, 0x000002d5, 0x7a90256d, 0x8004765c},

  {0x1421dc20, 0x00000eef, 0x00000110, 0x97d6da24, 0x1378f6ff},

  {0xb47c2166, 0x00000a6a, 0x00000209, 0xcfd6cc52, 0x676e14a5},

  {0x77dd1955, 0x000000de, 0x00000266, 0xba74bcaa, 0xc71b429c},

  {0x68a03cc2, 0x0000082f, 0x000007b0, 0x752bd5d8, 0x19ed14aa},

  {0x0226b0a3, 0x00000a5f, 0x000005a0, 0x82de4970, 0xf654d3ed},

  {0x637bf3b1, 0x00000d93, 0x0000026c, 0x5c7115cb, 0x3cccb57e},

  {0x3b120edf, 0x00000c13, 0x000003ec, 0x80d7d20f, 0x92132798},

  {0xe2456780, 0x000002eb, 0x00000641, 0xc0a5d289, 0x6160c87a},

  {0x9b2e7125, 0x00000c0c, 0x000003f3, 0xcc15f57e, 0x6f00f637},

  {0x153033ef, 0x00000787, 0x000006b6, 0x3cde443b, 0xb46caa6e},

  {0x18458b3f, 0x0000066c, 0x00000561, 0x9a2bd8c6, 0xb6c29121},

  {0x4ff9d4b9, 0x00000c8f, 0x0000033a, 0xd0ee6d6d, 0xc81cf380},

  {0xdf84b5d9, 0x00000802, 0x0000029a, 0xdab0d74a, 0xb2464559},

  {0x81ee15df, 0x000003ce, 0x00000725, 0x9942e2de, 0x4ccf571b},

  {0x5c768e04, 0x00000afd, 0x00000160, 0x36110831, 0xae0b305a},

  {0xe5e18094, 0x00000b4b, 0x000000a0, 0xffa3e4a7, 0x6c8a4f09},

  {0xed7263b6, 0x00000d0d, 0x000002f2, 0xb0006a35, 0x7e04af8c},

  {0x5bfde7d7, 0x000006fb, 0x00000554, 0xa4193b76, 0xb3a91d12},

  {0x67f4a743, 0x00000b85, 0x0000047a, 0xf05c8d8f, 0xfb472fdf},

  {0xf13bdf22, 0x00000ff7, 0x00000008, 0x816351eb, 0xf347f235},

  {0x08ecc608, 0x00000d5d, 0x00000098, 0x90492772, 0x0b7f1521},

  {0x296f52ba, 0x000004f9, 0x00000788, 0x5e5a4896, 0x1cc67088},

  {0xbe4624c2, 0x00000427, 0x000004ef, 0xcd267b94, 0x550caefd},

  {0x906f7c7c, 0x00000a05, 0x0000003f, 0x03fcfc33, 0x9ed82a02},

  {0x8f7b323e, 0x00000458, 0x000004c7, 0xcd4969c8, 0x633c38a8},

  {0x88d6593d, 0x00000597, 0x000005b5, 0xf199cd3b, 0x0491452f},

  {0x978a7768, 0x00000268, 0x000001d3, 0xb28c95bd, 0x1a42fe61},

  {0x857a621e, 0x000007a7, 0x000003a8, 0xf4bf84ab, 0xcd0694c6},

  {0xb0e121ef, 0x000005be, 0x00000644, 0x28747c14, 0xf0510c72},

  {0, 0, 0, 0, 0},

};

static int test_crc32c(void)

{

  struct crc_test *t = test;

  int failures = 0;

  while (t->length) {

    uint32_t be, le;

    le = ext2fs_crc32c_le(t->crc, test_buf + t->start, t->length);

    be = ext2fs_crc32_be(t->crc, test_buf + t->start, t->length);

    if (le != t->crc32c_le) {

      printf("Test %d LE fails, %x != %x\n",

             (int) (t - test), le, t->crc32c_le);

      failures++;

    }

    if (be != t->crc32_be) {

      printf("Test %d BE fails, %x != %x\n",

             (int) (t - test), be, t->crc32_be);

      failures++;

    }

    t++;

  }

  return failures;

}

int main(int argc, char *argv[])

{

  int ret;

  ret = test_crc32c();

  if (!ret)

    printf("No failures.\n");

  return ret;

}

#endif /* UNITTEST */