- markus@cvs.openbsd.org 2003/02/12 21:39:50
[crc32.c crc32.h]
replace crc32.c with a BSD licensed version; noted by David Turner
This commit is contained in:
Damien Miller
parent
e8a240f966
commit
1587fb8a17
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@ -60,6 +60,9 @@
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- markus@cvs.openbsd.org 2003/02/12 09:33:04
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- markus@cvs.openbsd.org 2003/02/12 09:33:04
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[key.c key.h ssh-dss.c ssh-rsa.c]
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[key.c key.h ssh-dss.c ssh-rsa.c]
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merge ssh-dss.h ssh-rsa.h into key.h; ok deraadt@
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merge ssh-dss.h ssh-rsa.h into key.h; ok deraadt@
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- markus@cvs.openbsd.org 2003/02/12 21:39:50
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[crc32.c crc32.h]
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replace crc32.c with a BSD licensed version; noted by David Turner
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20030211
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20030211
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- (djm) Cygwin needs libcrypt too. Patch from vinschen@redhat.com
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- (djm) Cygwin needs libcrypt too. Patch from vinschen@redhat.com
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@ -1160,4 +1163,4 @@
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save auth method before monitor_reset_key_state(); bugzilla bug #284;
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save auth method before monitor_reset_key_state(); bugzilla bug #284;
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ok provos@
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ok provos@
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$Id: ChangeLog,v 1.2610 2003/02/24 01:01:40 djm Exp $
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$Id: ChangeLog,v 1.2611 2003/02/24 01:02:12 djm Exp $
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196
crc32.c
196
crc32.c
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@ -1,114 +1,106 @@
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/* $OpenBSD: crc32.c,v 1.9 2003/02/12 21:39:50 markus Exp $ */
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/*
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/*
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* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
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* Copyright (c) 2003 Markus Friedl. All rights reserved.
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* code or tables extracted from it, as desired without restriction.
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*
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*
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* First, the polynomial itself and its table of feedback terms. The
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* Redistribution and use in source and binary forms, with or without
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* polynomial is
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* modification, are permitted provided that the following conditions
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* 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+X^0
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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*
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* Note that we take it "backwards" and put the highest-order term in
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* the lowest-order bit. The X^32 term is "implied"; the LSB is the
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* X^31 term, etc. The X^0 term (usually shown as "+1") results in
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* the MSB being 1
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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*
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* Note that the usual hardware shift register implementation, which
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* is what we're using (we're merely optimizing it by doing eight-bit
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* chunks at a time) shifts bits into the lowest-order term. In our
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* implementation, that means shifting towards the right. Why do we
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* do it this way? Because the calculated CRC must be transmitted in
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* order from highest-order term to lowest-order term. UARTs transmit
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* characters in order from LSB to MSB. By storing the CRC this way
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* we hand it to the UART in the order low-byte to high-byte; the UART
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* sends each low-bit to hight-bit; and the result is transmission bit
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* by bit from highest- to lowest-order term without requiring any bit
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* shuffling on our part. Reception works similarly
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*
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* The feedback terms table consists of 256, 32-bit entries. Notes
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*
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* The table can be generated at runtime if desired; code to do so
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* is shown later. It might not be obvious, but the feedback
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* terms simply represent the results of eight shift/xor opera
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* tions for all combinations of data and CRC register values
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*
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* The values must be right-shifted by eight bits by the "updcrc
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* logic; the shift must be u_(bring in zeroes). On some
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* hardware you could probably optimize the shift in assembler by
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* using byte-swap instructions
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* polynomial $edb88320
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*/
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*/
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#include <sys/types.h>
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#include "includes.h"
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RCSID("$OpenBSD: crc32.c,v 1.8 2000/12/19 23:17:56 markus Exp $");
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#include "crc32.h"
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#include "crc32.h"
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static u_int crc32_tab[] = {
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static const u_int32_t crc32tab[] = {
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0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
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0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL,
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0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
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0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L,
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0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
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0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L,
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0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
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0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L,
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0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
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0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
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0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
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0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L,
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0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
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0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL,
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0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
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0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L,
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0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
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0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L,
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0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
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0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
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0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
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0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L,
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0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
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0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L,
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0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
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0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L,
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0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
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0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL,
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0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
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0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
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0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
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0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL,
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0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
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0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL,
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0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
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0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L,
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0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
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0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L,
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0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
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0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
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0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
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0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL,
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0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
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0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L,
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0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
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0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL,
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0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
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0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L,
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0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
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0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
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0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
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0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL,
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0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
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0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L,
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0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
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0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L,
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0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
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0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L,
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0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
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0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
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0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
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0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L,
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0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
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0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL,
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0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
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0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL,
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0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
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0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L,
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0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
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0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
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0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
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0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L,
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0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
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0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL,
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0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
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0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L,
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0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
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0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL,
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0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
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0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
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0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
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0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L,
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0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
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0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL,
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0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
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0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L,
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0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
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0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L,
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0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
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0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
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0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
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0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL,
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0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
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0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L,
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0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
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0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL,
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0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
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0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL,
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0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
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0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
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0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
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0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L,
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0x2d02ef8dL
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0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L,
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0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL,
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0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L,
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0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
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0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L,
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0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L,
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0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL,
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0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L,
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0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
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0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L,
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0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
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0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L,
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0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
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};
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};
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/* Return a 32-bit CRC of the contents of the buffer. */
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u_int32_t
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ssh_crc32(const u_char *buf, u_int32_t size)
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u_int
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ssh_crc32(const u_char *s, u_int len)
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{
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{
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u_int i;
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u_int32_t i, crc;
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u_int crc32val;
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crc32val = 0;
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crc = 0;
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for (i = 0; i < len; i ++) {
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for (i = 0; i < size; i++)
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crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);
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crc = crc32tab[(crc ^ buf[i]) & 0xff] ^ (crc >> 8);
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}
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return crc;
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return crc32val;
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}
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}
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41
crc32.h
41
crc32.h
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@ -1,21 +1,30 @@
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/* $OpenBSD: crc32.h,v 1.13 2002/03/04 17:27:39 stevesk Exp $ */
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/* $OpenBSD: crc32.h,v 1.14 2003/02/12 21:39:50 markus Exp $ */
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/*
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 2003 Markus Friedl. All rights reserved.
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* Copyright (c) 1992 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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* Functions for computing 32-bit CRC.
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||||||
*
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*
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||||||
* As far as I am concerned, the code I have written for this software
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* Redistribution and use in source and binary forms, with or without
|
||||||
* can be used freely for any purpose. Any derived versions of this
|
* modification, are permitted provided that the following conditions
|
||||||
* software must be clearly marked as such, and if the derived work is
|
* are met:
|
||||||
* incompatible with the protocol description in the RFC file, it must be
|
* 1. Redistributions of source code must retain the above copyright
|
||||||
* called by a name other than "ssh" or "Secure Shell".
|
* notice, this list of conditions and the following disclaimer.
|
||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||||||
|
* notice, this list of conditions and the following disclaimer in the
|
||||||
|
* documentation and/or other materials provided with the distribution.
|
||||||
|
*
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||||||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||||
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||||
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||||
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||||
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||||
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||||
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#ifndef CRC32_H
|
#ifndef SSH_CRC32_H
|
||||||
#define CRC32_H
|
#define SSH_CRC32_H
|
||||||
|
u_int32_t ssh_crc32(const u_char *, u_int32_t);
|
||||||
u_int ssh_crc32(const u_char *, u_int);
|
#endif
|
||||||
|
|
||||||
#endif /* CRC32_H */
|
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue