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|
/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Sammy Kaye Powers <sammyk@php.net> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "zend_system_id.h"
#include "zend_extensions.h"
#include "ext/standard/md5.h"
#include "ext/hash/php_hash.h"
ZEND_API char zend_system_id[32];
static PHP_MD5_CTX context;
static int finalized = 0;
ZEND_API ZEND_RESULT_CODE zend_add_system_entropy(const char *module_name, const char *hook_name, const void *data, size_t size)
{
if (finalized == 0) {
PHP_MD5Update(&context, module_name, strlen(module_name));
PHP_MD5Update(&context, hook_name, strlen(hook_name));
if (size) {
PHP_MD5Update(&context, data, size);
}
return SUCCESS;
}
return FAILURE;
}
#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)
void zend_startup_system_id(void)
{
PHP_MD5Init(&context);
PHP_MD5Update(&context, PHP_VERSION, sizeof(PHP_VERSION)-1);
PHP_MD5Update(&context, ZEND_EXTENSION_BUILD_ID, sizeof(ZEND_EXTENSION_BUILD_ID)-1);
PHP_MD5Update(&context, ZEND_BIN_ID, sizeof(ZEND_BIN_ID)-1);
if (strstr(PHP_VERSION, "-dev") != 0) {
/* Development versions may be changed from build to build */
PHP_MD5Update(&context, __DATE__, sizeof(__DATE__)-1);
PHP_MD5Update(&context, __TIME__, sizeof(__TIME__)-1);
}
zend_system_id[0] = '\0';
}
#define ZEND_HOOK_AST_PROCESS (1 << 0)
#define ZEND_HOOK_COMPILE_FILE (1 << 1)
#define ZEND_HOOK_EXECUTE_EX (1 << 2)
#define ZEND_HOOK_EXECUTE_INTERNAL (1 << 3)
void zend_finalize_system_id(void)
{
unsigned char digest[16];
zend_uchar hooks = 0;
if (zend_ast_process) {
hooks |= ZEND_HOOK_AST_PROCESS;
}
if (zend_compile_file != compile_file) {
hooks |= ZEND_HOOK_COMPILE_FILE;
}
if (zend_execute_ex != execute_ex) {
hooks |= ZEND_HOOK_EXECUTE_EX;
}
if (zend_execute_internal) {
hooks |= ZEND_HOOK_EXECUTE_INTERNAL;
}
PHP_MD5Update(&context, &hooks, sizeof hooks);
for (int16_t i = 0; i < 256; i++) {
if (zend_get_user_opcode_handler((zend_uchar) i) != NULL) {
PHP_MD5Update(&context, &i, sizeof i);
}
}
PHP_MD5Final(digest, &context);
php_hash_bin2hex(zend_system_id, digest, sizeof digest);
finalized = 1;
}
|
