CVS shishi/gl

[shishi-commit]

Update of /home/cvs/shishi/gl
In directory dopio:/tmp/cvs-serv17270/gl

Modified Files:
        Makefile.am 
Added Files:
        crc.c crc.h 
Log Message:
Update.

--- /home/cvs/shishi/gl/Makefile.am     2005/10/22 16:17:17     1.71
+++ /home/cvs/shishi/gl/Makefile.am     2005/10/22 16:20:07     1.72
@@ -8,7 +8,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl 
--m4-base=gl/m4 --aux-dir=. --avoid=xalloc-die --libtool --macro-prefix=gl 
base64 error gc-arcfour gc-des gc-hmac-md5 gc-hmac-sha1 gc-md4 gc-md5 
gc-pbkdf2-sha1 getaddrinfo getdate gethostname getline getopt getpass getsubopt 
progname realloc setenv socklen strcase strchrnul strdup strndup strtok_r 
timegm vasnprintf vasprintf xalloc xgetdomainname xgethostname xreadlink 
xstrndup xvasprintf
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=gl 
--m4-base=gl/m4 --aux-dir=. --avoid=xalloc-die --libtool --macro-prefix=gl 
base64 crc error gc-arcfour gc-des gc-hmac-md5 gc-hmac-sha1 gc-md4 gc-md5 
gc-pbkdf2-sha1 getaddrinfo getdate gethostname getline getopt getpass getsubopt 
progname realloc setenv socklen strcase strchrnul strdup strndup strtok_r 
timegm vasnprintf vasprintf xalloc xgetdomainname xgethostname xreadlink 
xstrndup xvasprintf
 
 AUTOMAKE_OPTIONS = 1.5 gnits no-dependencies
 

--- /home/cvs/shishi/gl/crc.c   2005/10/22 16:20:07     NONE
+++ /home/cvs/shishi/gl/crc.c   2005/10/22 16:20:07     1.1
/* crc.c -- cyclic redundancy checks
   Copyright (C) 2005 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.  */

/* Written by Simon Josefsson.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include "crc.h"

/* Table of CRCs of all 8-bit messages.  Generated by running code
   from RFC 1952 modified to print out the table. */
static const uint32_t crc32_table[256] = {
  0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
  0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
  0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
  0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
  0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
  0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
  0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
  0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
  0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
  0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
  0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
  0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
  0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
  0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
  0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
  0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
  0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
  0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
  0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
  0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
  0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
  0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
  0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
  0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
  0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
  0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
  0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
  0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
  0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
  0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
  0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
  0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
  0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
  0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
  0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
  0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
  0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
  0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
  0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
  0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
  0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
  0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
  0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};

/*
 * The following function was extracted from RFC 1952 by Simon
 * Josefsson.  It was modified to avoid initial and final XOR, to use
 * size_t for the buffer length, and to use the const keyword.
 */
uint32_t
crc32_update_no_xor (uint32_t crc, const char *buf, size_t len)
{
  size_t n;

  for (n = 0; n < len; n++)
    crc = crc32_table[(crc ^ buf[n]) & 0xff] ^ (crc >> 8);

  return crc;
}

uint32_t
crc32_no_xor (const char *buf, size_t len)
{
  return crc32_update_no_xor (0L, buf, len);
}

uint32_t
crc32_update (uint32_t crc, const char *buf, size_t len)
{
  return crc32_update_no_xor (crc ^ 0xffffffffL, buf, len) ^ 0xffffffffL;
}

uint32_t
crc32 (const char *buf, size_t len)
{
  return crc32_update (0L, buf, len);
}
--- /home/cvs/shishi/gl/crc.h   2005/10/22 16:20:08     NONE
+++ /home/cvs/shishi/gl/crc.h   2005/10/22 16:20:08     1.1
/* crc.h -- cyclic redundancy checks
   Copyright (C) 2005 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* Written by Simon Josefsson.  */

#ifndef CRC_H
# define CRC_H 1

#include <stdint.h>

/* Compute CRC-32 value of LEN bytes long BUF, and return it. */
extern uint32_t crc32 (const char *buf, size_t len);

/* Incrementally update CRC-32 value CRC using LEN bytes long BUF.  In
   the first call, use 0 as the value for CRC.  Return the updated
   CRC-32 value.  */
extern uint32_t crc32_update (uint32_t crc, const char *buf, size_t len);

/* Compute modified-CRC-32 value of LEN bytes long BUF, and return it.
   The "modification" is to avoid the initial and final XOR operation.
   Due to historic implementation errors, this variant is sometimes
   used (i.e., in RFC 3961). */
extern uint32_t crc32_no_xor (const char *buf, size_t len);

/* Incrementally update modified-CRC-32 value CRC using LEN bytes long
   BUF.  In the first call, use 0 as the value for CRC.  Return the
   updated modified-CRC-32 value.  The "modification" is to avoid the
   initial and final XOR operation.  Due to historic implementation
   errors, this variant is sometimes used (i.e., in RFC 3961).  */
extern uint32_t
crc32_update_no_xor (uint32_t crc, const char *buf, size_t len);

#endif /* CRC_H */