Coverage Report

Created: 2026-10-28 06:20

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/php-src/Zend/zend_system_id.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: Sammy Kaye Powers <sammyk@php.net>                          |
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   |          Dmitry Stogov <dmitry@php.net>                              |
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   +----------------------------------------------------------------------+
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 */
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#include "php.h"
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#include "zend_system_id.h"
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#include "zend_extensions.h"
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#include "ext/standard/md5.h"
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ZEND_API char zend_system_id[32];
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static PHP_MD5_CTX context;
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static int finalized = 0;
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ZEND_API zend_result zend_add_system_entropy(const char *module_name, const char *hook_name, const void *data, size_t size)
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20
{
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20
  if (finalized == 0) {
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16
    PHP_MD5Update(&context, module_name, strlen(module_name));
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16
    PHP_MD5Update(&context, hook_name, strlen(hook_name));
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16
    if (size) {
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16
      PHP_MD5Update(&context, data, size);
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16
    }
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16
    return SUCCESS;
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16
  }
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4
  return FAILURE;
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20
}
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#define ZEND_BIN_ID "BIN_" ZEND_TOSTR(SIZEOF_INT) ZEND_TOSTR(SIZEOF_LONG) ZEND_TOSTR(SIZEOF_SIZE_T) ZEND_TOSTR(SIZEOF_ZEND_LONG) ZEND_TOSTR(ZEND_MM_ALIGNMENT)
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void zend_startup_system_id(void)
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16
{
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  finalized = 0;
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  PHP_MD5Init(&context);
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  PHP_MD5Update(&context, PHP_VERSION, sizeof(PHP_VERSION)-1);
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  PHP_MD5Update(&context, ZEND_EXTENSION_BUILD_ID, sizeof(ZEND_EXTENSION_BUILD_ID)-1);
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  PHP_MD5Update(&context, ZEND_BIN_ID, sizeof(ZEND_BIN_ID)-1);
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16
  if (strstr(PHP_VERSION, "-dev") != 0) {
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    /* Development versions may be changed from build to build */
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    PHP_MD5Update(&context, __DATE__, sizeof(__DATE__)-1);
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    PHP_MD5Update(&context, __TIME__, sizeof(__TIME__)-1);
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  }
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  zend_system_id[0] = '\0';
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}
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0
#define ZEND_HOOK_AST_PROCESS        (1 << 0)
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0
#define ZEND_HOOK_COMPILE_FILE       (1 << 1)
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0
#define ZEND_HOOK_EXECUTE_EX         (1 << 2)
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0
#define ZEND_HOOK_EXECUTE_INTERNAL   (1 << 3)
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0
#define ZEND_HOOK_INTERRUPT_FUNCTION (1 << 4)
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void zend_finalize_system_id(void)
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{
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  unsigned char digest[16];
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  uint8_t hooks = 0;
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16
  if (zend_ast_process) {
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0
    hooks |= ZEND_HOOK_AST_PROCESS;
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0
  }
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16
  if (zend_compile_file != compile_file) {
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0
    hooks |= ZEND_HOOK_COMPILE_FILE;
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0
  }
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16
  if (zend_execute_ex != execute_ex) {
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0
    hooks |= ZEND_HOOK_EXECUTE_EX;
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0
  }
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16
  if (zend_execute_internal) {
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0
    hooks |= ZEND_HOOK_EXECUTE_INTERNAL;
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0
  }
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16
  if (zend_interrupt_function) {
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0
    hooks |= ZEND_HOOK_INTERRUPT_FUNCTION;
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0
  }
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16
  PHP_MD5Update(&context, &hooks, sizeof hooks);
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4.11k
  for (int16_t i = 0; i < 256; i++) {
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4.09k
    if (zend_get_user_opcode_handler((uint8_t) i) != NULL) {
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0
      PHP_MD5Update(&context, &i, sizeof i);
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0
    }
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4.09k
  }
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  /* Cached scripts can refer to offsets of internal functions.
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   * Effects of disable_functions and frameless functions must be taken into account.
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   * Therefore, embed the function names in-order.
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   * Updating third party extensions may change function signatures, arginfo, offsets, ...
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   * Therefore, also embed the loaded modules and their versions. */
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22.1k
  ZEND_HASH_MAP_FOREACH_STR_KEY(CG(function_table), zend_string *name) {
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22.1k
    PHP_MD5Update(&context, ZSTR_VAL(name), ZSTR_LEN(name) + 1);
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22.1k
  } ZEND_HASH_FOREACH_END();
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448
  ZEND_HASH_MAP_FOREACH_PTR(&module_registry, zend_module_entry *mod) {
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448
    PHP_MD5Update(&context, mod->name, strlen(mod->name) + 1);
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448
    if (EXPECTED(mod->version != NO_VERSION_YET)) {
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      PHP_MD5Update(&context, mod->version, strlen(mod->version) + 1);
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208
    }
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448
  } ZEND_HASH_FOREACH_END();
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16
  PHP_MD5Final(digest, &context);
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  zend_bin2hex(zend_system_id, digest, sizeof digest);
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  finalized = 1;
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16
}