Coverage Report

Created: 2026-06-02 06:39

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/php-src/ext/hash/hash_crc32.c
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Source
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/*
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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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  | Authors: Michael Wallner <mike@php.net>                              |
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  |          Sara Golemon <pollita@php.net>                              |
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  +----------------------------------------------------------------------+
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*/
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#include "php_hash.h"
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#include "php_hash_crc32.h"
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#include "php_hash_crc32_tables.h"
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#include "ext/standard/crc32_x86.h"
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PHP_HASH_API void PHP_CRC32Init(PHP_CRC32_CTX *context, ZEND_ATTRIBUTE_UNUSED HashTable *args)
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0
{
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0
  context->state = ~0;
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0
}
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PHP_HASH_API void PHP_CRC32Update(PHP_CRC32_CTX *context, const unsigned char *input, size_t len)
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0
{
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0
  size_t i = 0;
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0
#if defined(ZEND_INTRIN_SSE4_2_PCLMUL_NATIVE) || defined(ZEND_INTRIN_SSE4_2_PCLMUL_RESOLVER)
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0
  i += crc32_x86_simd_update(X86_CRC32, &context->state, input, len);
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0
#endif
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0
  for (; i < len; ++i) {
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0
    context->state = (context->state << 8) ^ crc32_table[(context->state >> 24) ^ (input[i] & 0xff)];
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0
  }
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0
}
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PHP_HASH_API void PHP_CRC32BUpdate(PHP_CRC32_CTX *context, const unsigned char *input, size_t len)
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0
{
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0
  size_t i = 0;
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0
#if defined(ZEND_INTRIN_SSE4_2_PCLMUL_NATIVE) || defined(ZEND_INTRIN_SSE4_2_PCLMUL_RESOLVER)
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0
  i += crc32_x86_simd_update(X86_CRC32B, &context->state, input, len);
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0
#endif
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0
  for (; i < len; ++i) {
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0
    context->state = (context->state >> 8) ^ crc32b_table[(context->state ^ input[i]) & 0xff];
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0
  }
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0
}
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PHP_HASH_API void PHP_CRC32CUpdate(PHP_CRC32_CTX *context, const unsigned char *input, size_t len)
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0
{
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0
  size_t i = 0;
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0
#if defined(ZEND_INTRIN_SSE4_2_PCLMUL_NATIVE) || defined(ZEND_INTRIN_SSE4_2_PCLMUL_RESOLVER)
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0
  i += crc32_x86_simd_update(X86_CRC32C, &context->state, input, len);
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0
#endif
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0
  for (; i < len; ++i) {
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0
    context->state = (context->state >> 8) ^ crc32c_table[(context->state ^ input[i]) & 0xff];
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0
  }
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0
}
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PHP_HASH_API void PHP_CRC32LEFinal(unsigned char digest[4], PHP_CRC32_CTX *context)
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0
{
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0
  context->state=~context->state;
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0
  digest[3] = (unsigned char) ((context->state >> 24) & 0xff);
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0
  digest[2] = (unsigned char) ((context->state >> 16) & 0xff);
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0
  digest[1] = (unsigned char) ((context->state >> 8) & 0xff);
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0
  digest[0] = (unsigned char) (context->state & 0xff);
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0
  context->state = 0;
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0
}
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PHP_HASH_API void PHP_CRC32BEFinal(unsigned char digest[4], PHP_CRC32_CTX *context)
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0
{
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0
  context->state=~context->state;
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0
  digest[0] = (unsigned char) ((context->state >> 24) & 0xff);
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0
  digest[1] = (unsigned char) ((context->state >> 16) & 0xff);
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0
  digest[2] = (unsigned char) ((context->state >> 8) & 0xff);
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0
  digest[3] = (unsigned char) (context->state & 0xff);
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0
  context->state = 0;
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0
}
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PHP_HASH_API zend_result PHP_CRC32Copy(const php_hash_ops *ops, const PHP_CRC32_CTX *orig_context, PHP_CRC32_CTX *copy_context)
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0
{
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0
  copy_context->state = orig_context->state;
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0
  return SUCCESS;
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0
}
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const php_hash_ops php_hash_crc32_ops = {
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  "crc32",
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  (php_hash_init_func_t) PHP_CRC32Init,
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  (php_hash_update_func_t) PHP_CRC32Update,
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  (php_hash_final_func_t) PHP_CRC32LEFinal,
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  (php_hash_copy_func_t) PHP_CRC32Copy,
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  php_hash_serialize,
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  php_hash_unserialize,
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  PHP_CRC32_SPEC,
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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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  0
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};
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const php_hash_ops php_hash_crc32b_ops = {
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  "crc32b",
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  (php_hash_init_func_t) PHP_CRC32Init,
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  (php_hash_update_func_t) PHP_CRC32BUpdate,
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  (php_hash_final_func_t) PHP_CRC32BEFinal,
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  (php_hash_copy_func_t) PHP_CRC32Copy,
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  php_hash_serialize,
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  php_hash_unserialize,
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  PHP_CRC32_SPEC,
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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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  0
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};
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const php_hash_ops php_hash_crc32c_ops = {
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  "crc32c",
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  (php_hash_init_func_t) PHP_CRC32Init,
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  (php_hash_update_func_t) PHP_CRC32CUpdate,
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  (php_hash_final_func_t) PHP_CRC32BEFinal,
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  (php_hash_copy_func_t) PHP_CRC32Copy,
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  php_hash_serialize,
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  php_hash_unserialize,
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  PHP_CRC32_SPEC,
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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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  0
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};