1 files changed, 93 insertions, 102 deletions
diff --git a/crc32.c b/crc32.c
index 4774c8ba1..ac627b57a 100644
--- a/crc32.c
+++ b/crc32.c
@@ -1,114 +1,105 @@
+/*      $OpenBSD: crc32.c,v 1.9 2003/02/12 21:39:50 markus Exp $        */
 /*
- *  COPYRIGHT (C) 1986 Gary S. Brown.  You may use this program, or
+ * Copyright (c) 2003 Markus Friedl.  All rights reserved.
- *  code or tables extracted from it, as desired without restriction.
- *
- *  First, the polynomial itself and its table of feedback terms.  The
- *  polynomial is
- *  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
- *
- *  Note that we take it "backwards" and put the highest-order term in
- *  the lowest-order bit.  The X^32 term is "implied"; the LSB is the
- *  X^31 term, etc.  The X^0 term (usually shown as "+1") results in
- *  the MSB being 1
- *
- *  Note that the usual hardware shift register implementation, which
- *  is what we're using (we're merely optimizing it by doing eight-bit
- *  chunks at a time) shifts bits into the lowest-order term.  In our
- *  implementation, that means shifting towards the right.  Why do we
- *  do it this way?  Because the calculated CRC must be transmitted in
- *  order from highest-order term to lowest-order term.  UARTs transmit
- *  characters in order from LSB to MSB.  By storing the CRC this way
- *  we hand it to the UART in the order low-byte to high-byte; the UART
- *  sends each low-bit to hight-bit; and the result is transmission bit
- *  by bit from highest- to lowest-order term without requiring any bit
- *  shuffling on our part.  Reception works similarly
- *
- *  The feedback terms table consists of 256, 32-bit entries.  Notes
 *
- *      The table can be generated at runtime if desired; code to do so
+ * Redistribution and use in source and binary forms, with or without
- *      is shown later.  It might not be obvious, but the feedback
+ * modification, are permitted provided that the following conditions
- *      terms simply represent the results of eight shift/xor opera
+ * are met:
- *      tions for all combinations of data and CRC register values
+ * 1. Redistributions of source code must retain the above copyright
+ *    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.
 *
- *      The values must be right-shifted by eight bits by the "updcrc
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- *      logic; the shift must be u_(bring in zeroes).  On some
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- *      hardware you could probably optimize the shift in assembler by
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *      using byte-swap instructions
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *      polynomial $edb88320
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 #include "includes.h"
-RCSID("$OpenBSD: crc32.c,v 1.8 2000/12/19 23:17:56 markus Exp $");
 #include "crc32.h"
-static u_int crc32_tab[] = {
+static const u_int32_t crc32tab[] = {
-        0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+        0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL,
-        0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+        0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L,
-        0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+        0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L,
-        0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+        0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L,
-        0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+        0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
-        0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+        0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L,
-        0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+        0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL,
-        0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+        0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L,
-        0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+        0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L,
-        0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+        0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
-        0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+        0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L,
-        0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+        0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L,
-        0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+        0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L,
-        0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+        0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL,
-        0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+        0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
-        0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+        0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL,
-        0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+        0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL,
-        0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+        0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L,
-        0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+        0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L,
-        0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+        0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
-        0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+        0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL,
-        0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+        0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L,
-        0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+        0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL,
-        0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+        0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L,
-        0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+        0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
-        0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+        0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL,
-        0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+        0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L,
-        0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+        0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L,
-        0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+        0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L,
-        0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+        0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
-        0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+        0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L,
-        0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+        0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL,
-        0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+        0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL,
-        0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+        0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L,
-        0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+        0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
-        0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+        0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L,
-        0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+        0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL,
-        0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+        0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L,
-        0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+        0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL,
-        0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+        0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
-        0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+        0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L,
-        0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+        0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL,
-        0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+        0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L,
-        0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+        0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L,
-        0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+        0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
-        0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+        0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL,
-        0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+        0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L,
-        0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+        0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL,
-        0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+        0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL,
-        0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+        0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
-        0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+        0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L,
-        0x2d02ef8dL
+        0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L,
+        0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL,
+        0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L,
+        0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+        0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L,
+        0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L,
+        0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL,
+        0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L,
+        0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+        0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L,
+        0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
+        0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L,
+        0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
 };
-/* Return a 32-bit CRC of the contents of the buffer. */
+u_int32_t
+ssh_crc32(const u_char *buf, u_int32_t size)
-u_int
-ssh_crc32(const u_char *s, u_int len)
 {
-        u_int i;
+        u_int32_t i, crc;
-        u_int crc32val;
-        crc32val = 0;
+        crc = 0;
-        for (i = 0;  i < len;  i ++) {
+        for (i = 0;  i < size;  i++)
-                crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);
+                crc = crc32tab[(crc ^ buf[i]) & 0xff] ^ (crc >> 8);
-        }
+        return crc;
-        return crc32val;
 }

diff --git a/crc32.c b/crc32.c index 4774c8ba1..ac627b57a 100644 --- a/crc32.c +++ b/crc32.c
@@ -1,114 +1,105 @@
		1	/* $OpenBSD: crc32.c,v 1.9 2003/02/12 21:39:50 markus Exp $ */
		2
1	/*	3	/*
2	* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or	4	* Copyright (c) 2003 Markus Friedl. All rights reserved.
3	* code or tables extracted from it, as desired without restriction.
4	*
5	* First, the polynomial itself and its table of feedback terms. The
6	* polynomial is
7	* 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
8	*
9	* Note that we take it "backwards" and put the highest-order term in
10	* the lowest-order bit. The X^32 term is "implied"; the LSB is the
11	* X^31 term, etc. The X^0 term (usually shown as "+1") results in
12	* the MSB being 1
13	*
14	* Note that the usual hardware shift register implementation, which
15	* is what we're using (we're merely optimizing it by doing eight-bit
16	* chunks at a time) shifts bits into the lowest-order term. In our
17	* implementation, that means shifting towards the right. Why do we
18	* do it this way? Because the calculated CRC must be transmitted in
19	* order from highest-order term to lowest-order term. UARTs transmit
20	* characters in order from LSB to MSB. By storing the CRC this way
21	* we hand it to the UART in the order low-byte to high-byte; the UART
22	* sends each low-bit to hight-bit; and the result is transmission bit
23	* by bit from highest- to lowest-order term without requiring any bit
24	* shuffling on our part. Reception works similarly
25	*
26	* The feedback terms table consists of 256, 32-bit entries. Notes
27	*	5	*
28	* The table can be generated at runtime if desired; code to do so	6	* Redistribution and use in source and binary forms, with or without
29	* is shown later. It might not be obvious, but the feedback	7	* modification, are permitted provided that the following conditions
30	* terms simply represent the results of eight shift/xor opera	8	* are met:
31	* tions for all combinations of data and CRC register values	9	* 1. Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* 2. Redistributions in binary form must reproduce the above copyright
		12	* notice, this list of conditions and the following disclaimer in the
		13	* documentation and/or other materials provided with the distribution.
32	*	14	*
33	* The values must be right-shifted by eight bits by the "updcrc	15	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
34	* logic; the shift must be u_(bring in zeroes). On some	16	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
35	* hardware you could probably optimize the shift in assembler by	17	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
36	* using byte-swap instructions	18	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
37	* polynomial $edb88320	19	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		20	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		21	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		22	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		23	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		24	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38	*/	25	*/
39
40
41	#include "includes.h"	26	#include "includes.h"
42	RCSID("$OpenBSD: crc32.c,v 1.8 2000/12/19 23:17:56 markus Exp $");
43
44	#include "crc32.h"	27	#include "crc32.h"
45		28
46	static u_int crc32_tab[] = {	29	static const u_int32_t crc32tab[] = {
47	0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,	30	0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL,
48	0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,	31	0x076dc419L, 0x706af48fL, 0xe963a535L, 0x9e6495a3L,
49	0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,	32	0x0edb8832L, 0x79dcb8a4L, 0xe0d5e91eL, 0x97d2d988L,
50	0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,	33	0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, 0x90bf1d91L,
51	0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,	34	0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
52	0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,	35	0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L,
53	0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,	36	0x136c9856L, 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL,
54	0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,	37	0x14015c4fL, 0x63066cd9L, 0xfa0f3d63L, 0x8d080df5L,
55	0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,	38	0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, 0xa2677172L,
56	0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,	39	0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
57	0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,	40	0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L,
58	0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,	41	0x32d86ce3L, 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L,
59	0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,	42	0x26d930acL, 0x51de003aL, 0xc8d75180L, 0xbfd06116L,
60	0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,	43	0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, 0xb8bda50fL,
61	0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,	44	0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
62	0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,	45	0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL,
63	0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,	46	0x76dc4190L, 0x01db7106L, 0x98d220bcL, 0xefd5102aL,
64	0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,	47	0x71b18589L, 0x06b6b51fL, 0x9fbfe4a5L, 0xe8b8d433L,
65	0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,	48	0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, 0xe10e9818L,
66	0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,	49	0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
67	0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,	50	0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL,
68	0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,	51	0x6c0695edL, 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L,
69	0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,	52	0x65b0d9c6L, 0x12b7e950L, 0x8bbeb8eaL, 0xfcb9887cL,
70	0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,	53	0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, 0xfbd44c65L,
71	0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,	54	0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
72	0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,	55	0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL,
73	0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,	56	0x4369e96aL, 0x346ed9fcL, 0xad678846L, 0xda60b8d0L,
74	0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,	57	0x44042d73L, 0x33031de5L, 0xaa0a4c5fL, 0xdd0d7cc9L,
75	0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,	58	0x5005713cL, 0x270241aaL, 0xbe0b1010L, 0xc90c2086L,
76	0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,	59	0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
77	0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,	60	0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L,
78	0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,	61	0x59b33d17L, 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL,
79	0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,	62	0xedb88320L, 0x9abfb3b6L, 0x03b6e20cL, 0x74b1d29aL,
80	0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,	63	0xead54739L, 0x9dd277afL, 0x04db2615L, 0x73dc1683L,
81	0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,	64	0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
82	0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,	65	0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L,
83	0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,	66	0xf00f9344L, 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL,
84	0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,	67	0xf762575dL, 0x806567cbL, 0x196c3671L, 0x6e6b06e7L,
85	0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,	68	0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, 0x67dd4accL,
86	0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,	69	0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
87	0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,	70	0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L,
88	0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,	71	0xd1bb67f1L, 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL,
89	0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,	72	0xd80d2bdaL, 0xaf0a1b4cL, 0x36034af6L, 0x41047a60L,
90	0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,	73	0xdf60efc3L, 0xa867df55L, 0x316e8eefL, 0x4669be79L,
91	0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,	74	0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
92	0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,	75	0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL,
93	0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,	76	0xc5ba3bbeL, 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L,
94	0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,	77	0xc2d7ffa7L, 0xb5d0cf31L, 0x2cd99e8bL, 0x5bdeae1dL,
95	0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,	78	0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, 0x026d930aL,
96	0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,	79	0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
97	0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,	80	0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L,
98	0x2d02ef8dL	81	0x92d28e9bL, 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L,
		82	0x86d3d2d4L, 0xf1d4e242L, 0x68ddb3f8L, 0x1fda836eL,
		83	0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, 0x18b74777L,
		84	0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
		85	0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L,
		86	0xa00ae278L, 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L,
		87	0xa7672661L, 0xd06016f7L, 0x4969474dL, 0x3e6e77dbL,
		88	0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, 0x37d83bf0L,
		89	0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
		90	0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L,
		91	0xbad03605L, 0xcdd70693L, 0x54de5729L, 0x23d967bfL,
		92	0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L,
		93	0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
99	};	94	};
100		95
101	/* Return a 32-bit CRC of the contents of the buffer. */	96	u_int32_t
102		97	ssh_crc32(const u_char *buf, u_int32_t size)
103	u_int
104	ssh_crc32(const u_char *s, u_int len)
105	{	98	{
106	u_int i;	99	u_int32_t i, crc;
107	u_int crc32val;
108		100
109	crc32val = 0;	101	crc = 0;
110	for (i = 0; i < len; i ++) {	102	for (i = 0; i < size; i++)
111	crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);	103	crc = crc32tab[(crc ^ buf[i]) & 0xff] ^ (crc >> 8);
112	}	104	return crc;
113	return crc32val;
114	}	105	}