f14fb60209
* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
185 lines
6.0 KiB
C
185 lines
6.0 KiB
C
/* $NetBSD: md2.c,v 1.7 2012/06/25 22:32:44 abs Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Andrew Brown.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
__RCSID("$NetBSD: md2.c,v 1.7 2012/06/25 22:32:44 abs Exp $");
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include "namespace.h"
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <assert.h>
|
|
#include <md2.h>
|
|
#include <string.h>
|
|
|
|
#if HAVE_NBTOOL_CONFIG_H
|
|
#include "nbtool_config.h"
|
|
#endif
|
|
|
|
#if !HAVE_MD2_H
|
|
|
|
/* cut-n-pasted from rfc1319 */
|
|
static unsigned char S[256] = {
|
|
41, 46, 67, 201, 162, 216, 124, 1, 61, 54, 84, 161, 236, 240, 6,
|
|
19, 98, 167, 5, 243, 192, 199, 115, 140, 152, 147, 43, 217, 188,
|
|
76, 130, 202, 30, 155, 87, 60, 253, 212, 224, 22, 103, 66, 111, 24,
|
|
138, 23, 229, 18, 190, 78, 196, 214, 218, 158, 222, 73, 160, 251,
|
|
245, 142, 187, 47, 238, 122, 169, 104, 121, 145, 21, 178, 7, 63,
|
|
148, 194, 16, 137, 11, 34, 95, 33, 128, 127, 93, 154, 90, 144, 50,
|
|
39, 53, 62, 204, 231, 191, 247, 151, 3, 255, 25, 48, 179, 72, 165,
|
|
181, 209, 215, 94, 146, 42, 172, 86, 170, 198, 79, 184, 56, 210,
|
|
150, 164, 125, 182, 118, 252, 107, 226, 156, 116, 4, 241, 69, 157,
|
|
112, 89, 100, 113, 135, 32, 134, 91, 207, 101, 230, 45, 168, 2, 27,
|
|
96, 37, 173, 174, 176, 185, 246, 28, 70, 97, 105, 52, 64, 126, 15,
|
|
85, 71, 163, 35, 221, 81, 175, 58, 195, 92, 249, 206, 186, 197,
|
|
234, 38, 44, 83, 13, 110, 133, 40, 132, 9, 211, 223, 205, 244, 65,
|
|
129, 77, 82, 106, 220, 55, 200, 108, 193, 171, 250, 36, 225, 123,
|
|
8, 12, 189, 177, 74, 120, 136, 149, 139, 227, 99, 232, 109, 233,
|
|
203, 213, 254, 59, 0, 29, 57, 242, 239, 183, 14, 102, 88, 208, 228,
|
|
166, 119, 114, 248, 235, 117, 75, 10, 49, 68, 80, 180, 143, 237,
|
|
31, 26, 219, 153, 141, 51, 159, 17, 131, 20
|
|
};
|
|
|
|
/* cut-n-pasted from rfc1319 */
|
|
static const unsigned char *pad[] = {
|
|
(const unsigned char *)"",
|
|
(const unsigned char *)"\001",
|
|
(const unsigned char *)"\002\002",
|
|
(const unsigned char *)"\003\003\003",
|
|
(const unsigned char *)"\004\004\004\004",
|
|
(const unsigned char *)"\005\005\005\005\005",
|
|
(const unsigned char *)"\006\006\006\006\006\006",
|
|
(const unsigned char *)"\007\007\007\007\007\007\007",
|
|
(const unsigned char *)"\010\010\010\010\010\010\010\010",
|
|
(const unsigned char *)"\011\011\011\011\011\011\011\011\011",
|
|
(const unsigned char *)"\012\012\012\012\012\012\012\012\012\012",
|
|
(const unsigned char *)"\013\013\013\013\013\013\013\013\013\013\013",
|
|
(const unsigned char *)
|
|
"\014\014\014\014\014\014\014\014\014\014\014\014",
|
|
(const unsigned char *)
|
|
"\015\015\015\015\015\015\015\015\015\015\015\015\015",
|
|
(const unsigned char *)
|
|
"\016\016\016\016\016\016\016\016\016\016\016\016\016\016",
|
|
(const unsigned char *)
|
|
"\017\017\017\017\017\017\017\017\017\017\017\017\017\017\017",
|
|
(const unsigned char *)
|
|
"\020\020\020\020\020\020\020\020\020\020\020\020\020\020\020\020"
|
|
};
|
|
|
|
/*
|
|
* XXX This should not be visible, but due to an accident, it is
|
|
* XXX so it must remain so.
|
|
*/
|
|
/*static*/ void MD2Transform __P((MD2_CTX *));
|
|
|
|
#ifdef __weak_alias
|
|
__weak_alias(MD2Init,_MD2Init)
|
|
__weak_alias(MD2Update,_MD2Update)
|
|
__weak_alias(MD2Final,_MD2Final)
|
|
__weak_alias(MD2Transform,_MD2Transform)
|
|
#endif
|
|
|
|
void
|
|
MD2Init(MD2_CTX *context)
|
|
{
|
|
_DIAGASSERT(context != 0);
|
|
|
|
context->i = 16;
|
|
memset(&context->C[0], 0, sizeof(context->C));
|
|
memset(&context->X[0], 0, sizeof(context->X));
|
|
}
|
|
|
|
void
|
|
MD2Update(MD2_CTX *context, const unsigned char *input, unsigned int inputLen)
|
|
{
|
|
unsigned int idx, piece;
|
|
|
|
_DIAGASSERT(context != 0);
|
|
_DIAGASSERT(input != 0);
|
|
|
|
for (idx = 0; idx < inputLen; idx += piece) {
|
|
piece = 32 - context->i;
|
|
if ((inputLen - idx) < piece)
|
|
piece = inputLen - idx;
|
|
memcpy(&context->X[context->i], &input[idx], (size_t)piece);
|
|
if ((context->i += piece) == 32)
|
|
MD2Transform(context); /* resets i */
|
|
}
|
|
}
|
|
|
|
void
|
|
MD2Final(unsigned char digest[16], MD2_CTX *context)
|
|
{
|
|
unsigned int padlen;
|
|
|
|
_DIAGASSERT(digest != 0);
|
|
_DIAGASSERT(context != 0);
|
|
|
|
/* padlen should be 1..16 */
|
|
padlen = 32 - context->i;
|
|
|
|
/* add padding */
|
|
MD2Update(context, pad[padlen], padlen);
|
|
|
|
/* add checksum */
|
|
MD2Update(context, &context->C[0], (unsigned int) sizeof(context->C));
|
|
|
|
/* copy out final digest */
|
|
memcpy(digest, &context->X[0], (size_t)16);
|
|
|
|
/* reset the context */
|
|
MD2Init(context);
|
|
}
|
|
|
|
/*static*/ void
|
|
MD2Transform(MD2_CTX *context)
|
|
{
|
|
uint32_t l, j, k, t;
|
|
|
|
/* set block "3" and update "checksum" */
|
|
for (l = context->C[15], j = 0; j < 16; j++) {
|
|
context->X[32 + j] = context->X[j] ^ context->X[16 + j];
|
|
l = context->C[j] ^= S[context->X[16 + j] ^ l];
|
|
}
|
|
|
|
/* mangle input block */
|
|
for (t = j = 0; j < 18; t = (t + j) % 256, j++)
|
|
for (k = 0; k < 48; k++)
|
|
t = context->X[k] = (context->X[k] ^ S[t]);
|
|
|
|
/* reset input pointer */
|
|
context->i = 16;
|
|
}
|
|
|
|
#endif /* !HAVE_MD2_H */
|