1 files changed, 295 insertions, 0 deletions
diff --git a/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c b/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c
new file mode 100755
index 0000000..a851040
--- /dev/null
+++ b/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c
@@ -0,0 +1,295 @@
+/* crc.c - Cyclic redundancy checks.
+ * Copyright (C) 2003 Free Software Foundation, Inc.
+ *
+ * This file is part of Libgcrypt.
+ *
+ * Libgcrypt is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * Libgcrypt 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ */
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "g10lib.h"
+#include "memory.h"
+#include "cipher.h"
+#include "bithelp.h"
+/* Table of CRCs of all 8-bit messages.  Generated by running code
+   from RFC 1952 modified to print out the table. */
+static u32 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, for the Shishi project, and modified to be compatible
+ * with the modified CRC-32 used by RFC 1510, and subsequently
+ * modified for GNU Libgcrypt to allow it to be used for calculating
+ * both unmodified CRC-32 and modified CRC-32 values.  Original
+ * copyright and notice from the document follows:
+ *
+ *    Copyright (c) 1996 L. Peter Deutsch
+ *
+ *    Permission is granted to copy and distribute this document for
+ *    any purpose and without charge, including translations into
+ *    other languages and incorporation into compilations, provided
+ *    that the copyright notice and this notice are preserved, and
+ *    that any substantive changes or deletions from the original are
+ *    clearly marked.
+ *
+ * The copyright on RFCs, and consequently the function below, are
+ * supposedly also retroactively claimed by the Internet Society
+ * (according to rfc-editor@rfc-editor.org), with the following
+ * copyright notice:
+ *
+ *    Copyright (C) The Internet Society.  All Rights Reserved.
+ *
+ *    This document and translations of it may be copied and furnished
+ *    to others, and derivative works that comment on or otherwise
+ *    explain it or assist in its implementation may be prepared,
+ *    copied, published and distributed, in whole or in part, without
+ *    restriction of any kind, provided that the above copyright
+ *    notice and this paragraph are included on all such copies and
+ *    derivative works.  However, this document itself may not be
+ *    modified in any way, such as by removing the copyright notice or
+ *    references to the Internet Society or other Internet
+ *    organizations, except as needed for the purpose of developing
+ *    Internet standards in which case the procedures for copyrights
+ *    defined in the Internet Standards process must be followed, or
+ *    as required to translate it into languages other than English.
+ *
+ *    The limited permissions granted above are perpetual and will not be
+ *    revoked by the Internet Society or its successors or assigns.
+ *
+ *    This document and the information contained herein is provided
+ *    on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET
+ *    ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
+ *    IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE
+ *    OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY
+ *    IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
+ *    PARTICULAR PURPOSE.
+ *
+ */
+static u32
+update_crc32 (u32 crc, 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;
+}
+typedef struct
+{
+  u32 CRC;
+  byte buf[4];
+}
+CRC_CONTEXT;
+/* CRC32 */
+static void
+crc32_init (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->CRC = 0 ^ 0xffffffffL;
+}
+static void
+crc32_write (void *context, byte * inbuf, size_t inlen)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  if (!inbuf)
+    return;
+  ctx->CRC = update_crc32 (ctx->CRC, (char*)inbuf, inlen);
+}
+static byte *
+crc32_read (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  return ctx->buf;
+}
+static void
+crc32_final (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->CRC ^= 0xffffffffL;
+  ctx->buf[0] = (ctx->CRC >> 24) & 0xFF;
+  ctx->buf[1] = (ctx->CRC >> 16) & 0xFF;
+  ctx->buf[2] = (ctx->CRC >>  8) & 0xFF;
+  ctx->buf[3] = (ctx->CRC      ) & 0xFF;
+}
+/* CRC32 a'la RFC 1510 */
+static void
+crc32rfc1510_init (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->CRC = 0;
+}
+static void
+crc32rfc1510_final (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->buf[0] = (ctx->CRC >> 24) & 0xFF;
+  ctx->buf[1] = (ctx->CRC >> 16) & 0xFF;
+  ctx->buf[2] = (ctx->CRC >>  8) & 0xFF;
+  ctx->buf[3] = (ctx->CRC      ) & 0xFF;
+}
+/* CRC24 a'la RFC 2440 */
+/*
+ * The following CRC 24 routines are adapted from RFC 2440, which has
+ * the following copyright notice:
+ *
+ *   Copyright (C) The Internet Society (1998).  All Rights Reserved.
+ *
+ *   This document and translations of it may be copied and furnished
+ *   to others, and derivative works that comment on or otherwise
+ *   explain it or assist in its implementation may be prepared,
+ *   copied, published and distributed, in whole or in part, without
+ *   restriction of any kind, provided that the above copyright notice
+ *   and this paragraph are included on all such copies and derivative
+ *   works.  However, this document itself may not be modified in any
+ *   way, such as by removing the copyright notice or references to
+ *   the Internet Society or other Internet organizations, except as
+ *   needed for the purpose of developing Internet standards in which
+ *   case the procedures for copyrights defined in the Internet
+ *   Standards process must be followed, or as required to translate
+ *   it into languages other than English.
+ *
+ *   The limited permissions granted above are perpetual and will not be
+ *   revoked by the Internet Society or its successors or assigns.
+ *
+ *   This document and the information contained herein is provided on
+ *   an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET
+ *   ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
+ *   IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE
+ *   OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY
+ *   IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
+ *   PURPOSE.
+ */
+#define CRC24_INIT 0xb704ceL
+#define CRC24_POLY 0x1864cfbL
+static void
+crc24rfc2440_init (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->CRC = CRC24_INIT;
+}
+static void
+crc24rfc2440_write (void *context, byte * inbuf, size_t inlen)
+{
+  int i;
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  if (!inbuf)
+    return;
+  while (inlen--) {
+    ctx->CRC ^= (*inbuf++) << 16;
+    for (i = 0; i < 8; i++) {
+      ctx->CRC <<= 1;
+      if (ctx->CRC & 0x1000000)
+        ctx->CRC ^= CRC24_POLY;
+    }
+  }
+}
+static void
+crc24rfc2440_final (void *context)
+{
+  CRC_CONTEXT *ctx = (CRC_CONTEXT *) context;
+  ctx->buf[0] = (ctx->CRC >> 16) & 0xFF;
+  ctx->buf[1] = (ctx->CRC >>  8) & 0xFF;
+  ctx->buf[2] = (ctx->CRC      ) & 0xFF;
+}
+gcry_md_spec_t _gcry_digest_spec_crc32 =
+  {
+    "CRC32", NULL, 0, NULL, 4,
+    crc32_init, crc32_write, crc32_final, crc32_read,
+    sizeof (CRC_CONTEXT)
+  };
+gcry_md_spec_t _gcry_digest_spec_crc32_rfc1510 =
+  {
+    "CRC32RFC1510", NULL, 0, NULL, 4,
+    crc32rfc1510_init, crc32_write,
+    crc32rfc1510_final, crc32_read,
+    sizeof (CRC_CONTEXT)
+  };
+gcry_md_spec_t _gcry_digest_spec_crc24_rfc2440 =
+  {
+    "CRC24RFC2440", NULL, 0, NULL, 3,
+    crc24rfc2440_init, crc24rfc2440_write,
+    crc24rfc2440_final, crc32_read,
+    sizeof (CRC_CONTEXT)
+  };

diff --git a/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c b/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c new file mode 100755 index 0000000..a851040 --- /dev/null +++ b/linden/indra/libgcrypt/libgcrypt-1.2.2/cipher/crc.c
@@ -0,0 +1,295 @@
	1	/* crc.c - Cyclic redundancy checks.
	2	* Copyright (C) 2003 Free Software Foundation, Inc.
	3	*
	4	* This file is part of Libgcrypt.
	5	*
	6	* Libgcrypt is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU Lesser General Public License as
	8	* published by the Free Software Foundation; either version 2.1 of
	9	* the License, or (at your option) any later version.
	10	*
	11	* Libgcrypt is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
	19	*
	20	*/
	21
	22	#include <config.h>
	23	#include <stdio.h>
	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include <assert.h>
	27	#include "g10lib.h"
	28	#include "memory.h"
	29	#include "cipher.h"
	30
	31	#include "bithelp.h"
	32
	33	/* Table of CRCs of all 8-bit messages. Generated by running code
	34	from RFC 1952 modified to print out the table. */
	35	static u32 crc32_table[256] = {
	36	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
	37	0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
	38	0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
	39	0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
	40	0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
	41	0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
	42	0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
	43	0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
	44	0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
	45	0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
	46	0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
	47	0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
	48	0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
	49	0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
	50	0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
	51	0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
	52	0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
	53	0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
	54	0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
	55	0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
	56	0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
	57	0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
	58	0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
	59	0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
	60	0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
	61	0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
	62	0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
	63	0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
	64	0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
	65	0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
	66	0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
	67	0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
	68	0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
	69	0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
	70	0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
	71	0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
	72	0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
	73	0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
	74	0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
	75	0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
	76	0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
	77	0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
	78	0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
	79	};
	80
	81	/*
	82	* The following function was extracted from RFC 1952 by Simon
	83	* Josefsson, for the Shishi project, and modified to be compatible
	84	* with the modified CRC-32 used by RFC 1510, and subsequently
	85	* modified for GNU Libgcrypt to allow it to be used for calculating
	86	* both unmodified CRC-32 and modified CRC-32 values. Original
	87	* copyright and notice from the document follows:
	88	*
	89	* Copyright (c) 1996 L. Peter Deutsch
	90	*
	91	* Permission is granted to copy and distribute this document for
	92	* any purpose and without charge, including translations into
	93	* other languages and incorporation into compilations, provided
	94	* that the copyright notice and this notice are preserved, and
	95	* that any substantive changes or deletions from the original are
	96	* clearly marked.
	97	*
	98	* The copyright on RFCs, and consequently the function below, are
	99	* supposedly also retroactively claimed by the Internet Society
	100	* (according to rfc-editor@rfc-editor.org), with the following
	101	* copyright notice:
	102	*
	103	* Copyright (C) The Internet Society. All Rights Reserved.
	104	*
	105	* This document and translations of it may be copied and furnished
	106	* to others, and derivative works that comment on or otherwise
	107	* explain it or assist in its implementation may be prepared,
	108	* copied, published and distributed, in whole or in part, without
	109	* restriction of any kind, provided that the above copyright
	110	* notice and this paragraph are included on all such copies and
	111	* derivative works. However, this document itself may not be
	112	* modified in any way, such as by removing the copyright notice or
	113	* references to the Internet Society or other Internet
	114	* organizations, except as needed for the purpose of developing
	115	* Internet standards in which case the procedures for copyrights
	116	* defined in the Internet Standards process must be followed, or
	117	* as required to translate it into languages other than English.
	118	*
	119	* The limited permissions granted above are perpetual and will not be
	120	* revoked by the Internet Society or its successors or assigns.
	121	*
	122	* This document and the information contained herein is provided
	123	* on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET
	124	* ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
	125	* IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE
	126	* OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY
	127	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
	128	* PARTICULAR PURPOSE.
	129	*
	130	*/
	131	static u32
	132	update_crc32 (u32 crc, char *buf, size_t len)
	133	{
	134	size_t n;
	135
	136	for (n = 0; n < len; n++)
	137	crc = crc32_table[(crc ^ buf[n]) & 0xff] ^ (crc >> 8);
	138
	139	return crc;
	140	}
	141
	142	typedef struct
	143	{
	144	u32 CRC;
	145	byte buf[4];
	146	}
	147	CRC_CONTEXT;
	148
	149	/* CRC32 */
	150
	151	static void
	152	crc32_init (void *context)
	153	{
	154	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	155	ctx->CRC = 0 ^ 0xffffffffL;
	156	}
	157
	158	static void
	159	crc32_write (void context, byte inbuf, size_t inlen)
	160	{
	161	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	162	if (!inbuf)
	163	return;
	164	ctx->CRC = update_crc32 (ctx->CRC, (char*)inbuf, inlen);
	165	}
	166
	167	static byte *
	168	crc32_read (void *context)
	169	{
	170	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	171	return ctx->buf;
	172	}
	173
	174	static void
	175	crc32_final (void *context)
	176	{
	177	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	178	ctx->CRC ^= 0xffffffffL;
	179	ctx->buf[0] = (ctx->CRC >> 24) & 0xFF;
	180	ctx->buf[1] = (ctx->CRC >> 16) & 0xFF;
	181	ctx->buf[2] = (ctx->CRC >> 8) & 0xFF;
	182	ctx->buf[3] = (ctx->CRC ) & 0xFF;
	183	}
	184
	185	/* CRC32 a'la RFC 1510 */
	186	static void
	187	crc32rfc1510_init (void *context)
	188	{
	189	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	190	ctx->CRC = 0;
	191	}
	192
	193	static void
	194	crc32rfc1510_final (void *context)
	195	{
	196	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	197	ctx->buf[0] = (ctx->CRC >> 24) & 0xFF;
	198	ctx->buf[1] = (ctx->CRC >> 16) & 0xFF;
	199	ctx->buf[2] = (ctx->CRC >> 8) & 0xFF;
	200	ctx->buf[3] = (ctx->CRC ) & 0xFF;
	201	}
	202
	203	/* CRC24 a'la RFC 2440 */
	204	/*
	205	* The following CRC 24 routines are adapted from RFC 2440, which has
	206	* the following copyright notice:
	207	*
	208	* Copyright (C) The Internet Society (1998). All Rights Reserved.
	209	*
	210	* This document and translations of it may be copied and furnished
	211	* to others, and derivative works that comment on or otherwise
	212	* explain it or assist in its implementation may be prepared,
	213	* copied, published and distributed, in whole or in part, without
	214	* restriction of any kind, provided that the above copyright notice
	215	* and this paragraph are included on all such copies and derivative
	216	* works. However, this document itself may not be modified in any
	217	* way, such as by removing the copyright notice or references to
	218	* the Internet Society or other Internet organizations, except as
	219	* needed for the purpose of developing Internet standards in which
	220	* case the procedures for copyrights defined in the Internet
	221	* Standards process must be followed, or as required to translate
	222	* it into languages other than English.
	223	*
	224	* The limited permissions granted above are perpetual and will not be
	225	* revoked by the Internet Society or its successors or assigns.
	226	*
	227	* This document and the information contained herein is provided on
	228	* an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET
	229	* ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
	230	* IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE
	231	* OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY
	232	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
	233	* PURPOSE.
	234	*/
	235
	236	#define CRC24_INIT 0xb704ceL
	237	#define CRC24_POLY 0x1864cfbL
	238
	239	static void
	240	crc24rfc2440_init (void *context)
	241	{
	242	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	243	ctx->CRC = CRC24_INIT;
	244	}
	245
	246	static void
	247	crc24rfc2440_write (void context, byte inbuf, size_t inlen)
	248	{
	249	int i;
	250	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	251
	252	if (!inbuf)
	253	return;
	254
	255	while (inlen--) {
	256	ctx->CRC ^= (*inbuf++) << 16;
	257	for (i = 0; i < 8; i++) {
	258	ctx->CRC <<= 1;
	259	if (ctx->CRC & 0x1000000)
	260	ctx->CRC ^= CRC24_POLY;
	261	}
	262	}
	263	}
	264
	265	static void
	266	crc24rfc2440_final (void *context)
	267	{
	268	CRC_CONTEXT ctx = (CRC_CONTEXT ) context;
	269	ctx->buf[0] = (ctx->CRC >> 16) & 0xFF;
	270	ctx->buf[1] = (ctx->CRC >> 8) & 0xFF;
	271	ctx->buf[2] = (ctx->CRC ) & 0xFF;
	272	}
	273
	274	gcry_md_spec_t _gcry_digest_spec_crc32 =
	275	{
	276	"CRC32", NULL, 0, NULL, 4,
	277	crc32_init, crc32_write, crc32_final, crc32_read,
	278	sizeof (CRC_CONTEXT)
	279	};
	280
	281	gcry_md_spec_t _gcry_digest_spec_crc32_rfc1510 =
	282	{
	283	"CRC32RFC1510", NULL, 0, NULL, 4,
	284	crc32rfc1510_init, crc32_write,
	285	crc32rfc1510_final, crc32_read,
	286	sizeof (CRC_CONTEXT)
	287	};
	288
	289	gcry_md_spec_t _gcry_digest_spec_crc24_rfc2440 =
	290	{
	291	"CRC24RFC2440", NULL, 0, NULL, 3,
	292	crc24rfc2440_init, crc24rfc2440_write,
	293	crc24rfc2440_final, crc32_read,
	294	sizeof (CRC_CONTEXT)
	295	};