1*ebfedea0SLionel Sambuc /* $NetBSD: hash.h,v 1.1.1.2 2011/04/14 14:08:32 elric Exp $ */
2*ebfedea0SLionel Sambuc
3*ebfedea0SLionel Sambuc /*
4*ebfedea0SLionel Sambuc * Copyright (c) 1999 Kungliga Tekniska Högskolan
5*ebfedea0SLionel Sambuc * (Royal Institute of Technology, Stockholm, Sweden).
6*ebfedea0SLionel Sambuc * All rights reserved.
7*ebfedea0SLionel Sambuc *
8*ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9*ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions
10*ebfedea0SLionel Sambuc * are met:
11*ebfedea0SLionel Sambuc *
12*ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
13*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer.
14*ebfedea0SLionel Sambuc *
15*ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
16*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
17*ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution.
18*ebfedea0SLionel Sambuc *
19*ebfedea0SLionel Sambuc * 3. Neither the name of KTH nor the names of its contributors may be
20*ebfedea0SLionel Sambuc * used to endorse or promote products derived from this software without
21*ebfedea0SLionel Sambuc * specific prior written permission.
22*ebfedea0SLionel Sambuc *
23*ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
24*ebfedea0SLionel Sambuc * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25*ebfedea0SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26*ebfedea0SLionel Sambuc * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
27*ebfedea0SLionel Sambuc * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28*ebfedea0SLionel Sambuc * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29*ebfedea0SLionel Sambuc * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30*ebfedea0SLionel Sambuc * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31*ebfedea0SLionel Sambuc * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32*ebfedea0SLionel Sambuc * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33*ebfedea0SLionel Sambuc * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
34*ebfedea0SLionel Sambuc
35*ebfedea0SLionel Sambuc /* Id */
36*ebfedea0SLionel Sambuc
37*ebfedea0SLionel Sambuc /* stuff in common between md4, md5, and sha1 */
38*ebfedea0SLionel Sambuc
39*ebfedea0SLionel Sambuc #ifndef __hash_h__
40*ebfedea0SLionel Sambuc #define __hash_h__
41*ebfedea0SLionel Sambuc
42*ebfedea0SLionel Sambuc #ifdef KRB5
43*ebfedea0SLionel Sambuc #include <krb5/krb5-types.h>
44*ebfedea0SLionel Sambuc #endif
45*ebfedea0SLionel Sambuc #include <krb5/roken.h>
46*ebfedea0SLionel Sambuc
47*ebfedea0SLionel Sambuc #ifndef min
48*ebfedea0SLionel Sambuc #define min(a,b) (((a)>(b))?(b):(a))
49*ebfedea0SLionel Sambuc #endif
50*ebfedea0SLionel Sambuc
51*ebfedea0SLionel Sambuc /* Vector Crays doesn't have a good 32-bit type, or more precisely,
52*ebfedea0SLionel Sambuc int32_t as defined by <bind/bitypes.h> isn't 32 bits, and we don't
53*ebfedea0SLionel Sambuc want to depend in being able to redefine this type. To cope with
54*ebfedea0SLionel Sambuc this we have to clamp the result in some places to [0,2^32); no
55*ebfedea0SLionel Sambuc need to do this on other machines. Did I say this was a mess?
56*ebfedea0SLionel Sambuc */
57*ebfedea0SLionel Sambuc
58*ebfedea0SLionel Sambuc #ifdef _CRAY
59*ebfedea0SLionel Sambuc #define CRAYFIX(X) ((X) & 0xffffffff)
60*ebfedea0SLionel Sambuc #else
61*ebfedea0SLionel Sambuc #define CRAYFIX(X) (X)
62*ebfedea0SLionel Sambuc #endif
63*ebfedea0SLionel Sambuc
64*ebfedea0SLionel Sambuc static inline uint32_t
cshift(uint32_t x,unsigned int n)65*ebfedea0SLionel Sambuc cshift (uint32_t x, unsigned int n)
66*ebfedea0SLionel Sambuc {
67*ebfedea0SLionel Sambuc x = CRAYFIX(x);
68*ebfedea0SLionel Sambuc return CRAYFIX((x << n) | (x >> (32 - n)));
69*ebfedea0SLionel Sambuc }
70*ebfedea0SLionel Sambuc
71*ebfedea0SLionel Sambuc static inline uint64_t
cshift64(uint64_t x,unsigned int n)72*ebfedea0SLionel Sambuc cshift64 (uint64_t x, unsigned int n)
73*ebfedea0SLionel Sambuc {
74*ebfedea0SLionel Sambuc return ((uint64_t)x << (uint64_t)n) | ((uint64_t)x >> ((uint64_t)64 - (uint64_t)n));
75*ebfedea0SLionel Sambuc }
76*ebfedea0SLionel Sambuc
77*ebfedea0SLionel Sambuc #endif /* __hash_h__ */
78