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php_hash_fnv.h
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php_hash_fnv.h
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Michael Maclean <mgdm@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef PHP_HASH_FNV_H
#define PHP_HASH_FNV_H
#define PHP_FNV1_32_INIT ((php_hash_uint32)0x811c9dc5)
#define PHP_FNV1_32A_INIT PHP_FNV1_32_INIT
#define PHP_FNV_32_PRIME ((php_hash_uint32)0x01000193)
#define PHP_FNV1_64_INIT ((php_hash_uint64)0xcbf29ce484222325ULL)
#define PHP_FNV1A_64_INIT FNV1_64_INIT
#define PHP_FNV_64_PRIME ((php_hash_uint64)0x100000001b3ULL)
/*
* hash types
*/
enum php_fnv_type {
PHP_FNV_NONE = 0, /* invalid FNV hash type */
PHP_FNV0_32 = 1, /* FNV-0 32 bit hash */
PHP_FNV1_32 = 2, /* FNV-1 32 bit hash */
PHP_FNV1a_32 = 3, /* FNV-1a 32 bit hash */
PHP_FNV0_64 = 4, /* FNV-0 64 bit hash */
PHP_FNV1_64 = 5, /* FNV-1 64 bit hash */
PHP_FNV1a_64 = 6, /* FNV-1a 64 bit hash */
};
typedef struct {
php_hash_uint32 state;
} PHP_FNV132_CTX;
typedef struct {
php_hash_uint64 state;
} PHP_FNV164_CTX;
PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context);
PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen);
PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen);
PHP_HASH_API void PHP_FNV132Final(unsigned char digest[16], PHP_FNV132_CTX * context);
PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context);
PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen);
PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen);
PHP_HASH_API void PHP_FNV164Final(unsigned char digest[16], PHP_FNV164_CTX * context);
static php_hash_uint32 fnv_32_buf(void *buf, size_t len, php_hash_uint32 hval, int alternate);
static php_hash_uint64 fnv_64_buf(void *buf, size_t len, php_hash_uint64 hval, int alternate);
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/