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/*
+----------------------------------------------------------------------+
| Copyright (c) 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: |
| https://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> |
+----------------------------------------------------------------------+
*/
#ifndef PHP_HASH_FNV_H
#define PHP_HASH_FNV_H
#define PHP_FNV1_32_INIT ((uint32_t)0x811c9dc5)
#define PHP_FNV_32_PRIME ((uint32_t)0x01000193)
#define PHP_FNV1_64_INIT ((uint64_t)0xcbf29ce484222325ULL)
#define PHP_FNV_64_PRIME ((uint64_t)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 {
uint32_t state;
} PHP_FNV132_CTX;
#define PHP_FNV132_SPEC "l."
typedef struct {
uint64_t state;
} PHP_FNV164_CTX;
#define PHP_FNV164_SPEC "q."
PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args);
PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen);
PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen);
PHP_HASH_API void PHP_FNV132Final(unsigned char digest[4], PHP_FNV132_CTX * context);
PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args);
PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen);
PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen);
PHP_HASH_API void PHP_FNV164Final(unsigned char digest[8], PHP_FNV164_CTX * context);
static uint32_t fnv_32_buf(void *buf, size_t len, uint32_t hval, int alternate);
static uint64_t fnv_64_buf(void *buf, size_t len, uint64_t hval, int alternate);
#endif
|