1/*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2015 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Michael Maclean <mgdm@php.net> |
16 +----------------------------------------------------------------------+
17*/
18
19/* $Id$ */
20
21#ifndef PHP_HASH_FNV_H
22#define PHP_HASH_FNV_H
23
24#define PHP_FNV1_32_INIT ((php_hash_uint32)0x811c9dc5)
25#define PHP_FNV1_32A_INIT PHP_FNV1_32_INIT
26
27#define PHP_FNV_32_PRIME ((php_hash_uint32)0x01000193)
28
29#define PHP_FNV1_64_INIT ((php_hash_uint64)0xcbf29ce484222325ULL)
30#define PHP_FNV1A_64_INIT FNV1_64_INIT
31
32#define PHP_FNV_64_PRIME ((php_hash_uint64)0x100000001b3ULL)
33
34
35/*
36 * hash types
37 */
38enum php_fnv_type {
39 PHP_FNV_NONE = 0, /* invalid FNV hash type */
40 PHP_FNV0_32 = 1, /* FNV-0 32 bit hash */
41 PHP_FNV1_32 = 2, /* FNV-1 32 bit hash */
42 PHP_FNV1a_32 = 3, /* FNV-1a 32 bit hash */
43 PHP_FNV0_64 = 4, /* FNV-0 64 bit hash */
44 PHP_FNV1_64 = 5, /* FNV-1 64 bit hash */
45 PHP_FNV1a_64 = 6, /* FNV-1a 64 bit hash */
46};
47
48typedef struct {
49 php_hash_uint32 state;
50} PHP_FNV132_CTX;
51
52typedef struct {
53 php_hash_uint64 state;
54} PHP_FNV164_CTX;
55
56
57PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context);
58PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen);
59PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen);
60PHP_HASH_API void PHP_FNV132Final(unsigned char digest[16], PHP_FNV132_CTX * context);
61
62PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context);
63PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen);
64PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen);
65PHP_HASH_API void PHP_FNV164Final(unsigned char digest[16], PHP_FNV164_CTX * context);
66
67static php_hash_uint32 fnv_32_buf(void *buf, size_t len, php_hash_uint32 hval, int alternate);
68static php_hash_uint64 fnv_64_buf(void *buf, size_t len, php_hash_uint64 hval, int alternate);
69
70#endif
71
72/*
73 * Local variables:
74 * tab-width: 4
75 * c-basic-offset: 4
76 * End:
77 * vim600: noet sw=4 ts=4 fdm=marker
78 * vim<600: noet sw=4 ts=4
79 */
80