1 /* 2 +----------------------------------------------------------------------+ 3 | PHP Version 7 | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) 1997-2018 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 ((uint32_t)0x811c9dc5) 25 #define PHP_FNV1_32A_INIT PHP_FNV1_32_INIT 26 27 #define PHP_FNV_32_PRIME ((uint32_t)0x01000193) 28 29 #define PHP_FNV1_64_INIT ((uint64_t)0xcbf29ce484222325ULL) 30 #define PHP_FNV1A_64_INIT FNV1_64_INIT 31 32 #define PHP_FNV_64_PRIME ((uint64_t)0x100000001b3ULL) 33 34 35 /* 36 * hash types 37 */ 38 enum 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 48 typedef struct { 49 uint32_t state; 50 } PHP_FNV132_CTX; 51 52 typedef struct { 53 uint64_t state; 54 } PHP_FNV164_CTX; 55 56 57 PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context); 58 PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen); 59 PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, unsigned int inputLen); 60 PHP_HASH_API void PHP_FNV132Final(unsigned char digest[16], PHP_FNV132_CTX * context); 61 62 PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context); 63 PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen); 64 PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, unsigned int inputLen); 65 PHP_HASH_API void PHP_FNV164Final(unsigned char digest[16], PHP_FNV164_CTX * context); 66 67 static uint32_t fnv_32_buf(void *buf, size_t len, uint32_t hval, int alternate); 68 static uint64_t fnv_64_buf(void *buf, size_t len, uint64_t 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
