65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright © The PHP Group and Contributors. |
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+----------------------------------------------------------------------+
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| This source file is subject to the Modified BSD License that is |
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| bundled with this package in the file LICENSE, and is available |
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| through the World Wide Web at <https://www.php.net/license/>. |
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| |
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| SPDX-License-Identifier: BSD-3-Clause |
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+----------------------------------------------------------------------+
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| Author: Michael Maclean <mgdm@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef PHP_HASH_FNV_H
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#define PHP_HASH_FNV_H
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#define PHP_FNV1_32_INIT ((uint32_t)0x811c9dc5)
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#define PHP_FNV_32_PRIME ((uint32_t)0x01000193)
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#define PHP_FNV1_64_INIT ((uint64_t)0xcbf29ce484222325ULL)
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#define PHP_FNV_64_PRIME ((uint64_t)0x100000001b3ULL)
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/*
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* hash types
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*/
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enum php_fnv_type {
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PHP_FNV_NONE = 0, /* invalid FNV hash type */
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PHP_FNV0_32 = 1, /* FNV-0 32 bit hash */
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PHP_FNV1_32 = 2, /* FNV-1 32 bit hash */
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PHP_FNV1a_32 = 3, /* FNV-1a 32 bit hash */
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PHP_FNV0_64 = 4, /* FNV-0 64 bit hash */
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PHP_FNV1_64 = 5, /* FNV-1 64 bit hash */
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PHP_FNV1a_64 = 6, /* FNV-1a 64 bit hash */
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};
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typedef struct {
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uint32_t state;
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} PHP_FNV132_CTX;
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#define PHP_FNV132_SPEC "l."
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typedef struct {
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uint64_t state;
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} PHP_FNV164_CTX;
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#define PHP_FNV164_SPEC "q."
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PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args);
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PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen);
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PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen);
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PHP_HASH_API void PHP_FNV132Final(unsigned char digest[4], PHP_FNV132_CTX * context);
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PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args);
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PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen);
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PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen);
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PHP_HASH_API void PHP_FNV164Final(unsigned char digest[8], PHP_FNV164_CTX * context);
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static uint32_t fnv_32_buf(void *buf, size_t len, uint32_t hval, int alternate);
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static uint64_t fnv_64_buf(void *buf, size_t len, uint64_t hval, int alternate);
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#endif
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