1 /* 2 +----------------------------------------------------------------------+ 3 | Copyright (c) The PHP Group | 4 +----------------------------------------------------------------------+ 5 | This source file is subject to version 3.01 of the PHP license, | 6 | that is bundled with this package in the file LICENSE, and is | 7 | available through the world-wide-web at the following url: | 8 | https://www.php.net/license/3_01.txt | 9 | If you did not receive a copy of the PHP license and are unable to | 10 | obtain it through the world-wide-web, please send a note to | 11 | license@php.net so we can mail you a copy immediately. | 12 +----------------------------------------------------------------------+ 13 | Author: Michael Maclean <mgdm@php.net> | 14 +----------------------------------------------------------------------+ 15 */ 16 17 #ifndef PHP_HASH_FNV_H 18 #define PHP_HASH_FNV_H 19 20 #define PHP_FNV1_32_INIT ((uint32_t)0x811c9dc5) 21 22 #define PHP_FNV_32_PRIME ((uint32_t)0x01000193) 23 24 #define PHP_FNV1_64_INIT ((uint64_t)0xcbf29ce484222325ULL) 25 26 #define PHP_FNV_64_PRIME ((uint64_t)0x100000001b3ULL) 27 28 29 /* 30 * hash types 31 */ 32 enum php_fnv_type { 33 PHP_FNV_NONE = 0, /* invalid FNV hash type */ 34 PHP_FNV0_32 = 1, /* FNV-0 32 bit hash */ 35 PHP_FNV1_32 = 2, /* FNV-1 32 bit hash */ 36 PHP_FNV1a_32 = 3, /* FNV-1a 32 bit hash */ 37 PHP_FNV0_64 = 4, /* FNV-0 64 bit hash */ 38 PHP_FNV1_64 = 5, /* FNV-1 64 bit hash */ 39 PHP_FNV1a_64 = 6, /* FNV-1a 64 bit hash */ 40 }; 41 42 typedef struct { 43 uint32_t state; 44 } PHP_FNV132_CTX; 45 #define PHP_FNV132_SPEC "l." 46 47 typedef struct { 48 uint64_t state; 49 } PHP_FNV164_CTX; 50 #define PHP_FNV164_SPEC "q." 51 52 53 PHP_HASH_API void PHP_FNV132Init(PHP_FNV132_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args); 54 PHP_HASH_API void PHP_FNV132Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen); 55 PHP_HASH_API void PHP_FNV1a32Update(PHP_FNV132_CTX *context, const unsigned char *input, size_t inputLen); 56 PHP_HASH_API void PHP_FNV132Final(unsigned char digest[4], PHP_FNV132_CTX * context); 57 58 PHP_HASH_API void PHP_FNV164Init(PHP_FNV164_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args); 59 PHP_HASH_API void PHP_FNV164Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen); 60 PHP_HASH_API void PHP_FNV1a64Update(PHP_FNV164_CTX *context, const unsigned char *input, size_t inputLen); 61 PHP_HASH_API void PHP_FNV164Final(unsigned char digest[8], PHP_FNV164_CTX * context); 62 63 static uint32_t fnv_32_buf(void *buf, size_t len, uint32_t hval, int alternate); 64 static uint64_t fnv_64_buf(void *buf, size_t len, uint64_t hval, int alternate); 65 66 #endif 67
