63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/**
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* Copyright 2019 Google Inc. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* crc32c hash extension for PHP
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*
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* This file contains the crc32c hash function for
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* http://php.net/manual/en/function.hash.php
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*/
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#include "php_crc32c.h"
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#include "ext/hash/php_hash.h"
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#include "ext/hash/php_hash_crc32.h"
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#include "crc32c/crc32c.h"
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PHP_HASH_API void CRC32CInit(PHP_CRC32_CTX *context)
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{
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context->state = 0;
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}
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PHP_HASH_API void CRC32CUpdate(PHP_CRC32_CTX *context, const unsigned char *input, size_t len)
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{
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context->state = crc32c_extend(context->state, input, len);
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}
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PHP_HASH_API void CRC32CFinal(uint8_t crc[4], PHP_CRC32_CTX *context)
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{
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int2byte(context->state, crc);
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context->state = 0;
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}
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PHP_HASH_API int CRC32CCopy(const php_hash_ops *ops, PHP_CRC32_CTX *orig_context, PHP_CRC32_CTX *copy_context)
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{
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copy_context->state = orig_context->state;
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return SUCCESS;
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}
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const php_hash_ops crc32_ops = {
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(php_hash_init_func_t) CRC32CInit,
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(php_hash_update_func_t) CRC32CUpdate,
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(php_hash_final_func_t) CRC32CFinal,
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(php_hash_copy_func_t) CRC32CCopy,
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4, /* what to say here? */
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4,
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sizeof(PHP_CRC32_CTX),
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#if PHP_API_VERSION >= 20170718
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0
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#endif
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}; |