1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2014 The PHP Group |
6: +----------------------------------------------------------------------+
7: | This source file is subject to version 3.01 of the PHP license, |
8: | that is bundled with this package in the file LICENSE, and is |
9: | available through the world-wide-web at the following url: |
10: | http://www.php.net/license/3_01.txt |
11: | If you did not receive a copy of the PHP license and are unable to |
12: | obtain it through the world-wide-web, please send a note to |
13: | license@php.net so we can mail you a copy immediately. |
14: +----------------------------------------------------------------------+
15: | Author: Jani Lehtimäki <jkl@njet.net> |
16: +----------------------------------------------------------------------+
17: */
18:
19: /* $Id: php_var.h,v 1.1.1.5 2014/06/15 20:03:57 misho Exp $ */
20:
21: #ifndef PHP_VAR_H
22: #define PHP_VAR_H
23:
24: #include "ext/standard/basic_functions.h"
25: #include "ext/standard/php_smart_str_public.h"
26:
27: PHP_FUNCTION(var_dump);
28: PHP_FUNCTION(var_export);
29: PHP_FUNCTION(debug_zval_dump);
30: PHP_FUNCTION(serialize);
31: PHP_FUNCTION(unserialize);
32: PHP_FUNCTION(memory_get_usage);
33: PHP_FUNCTION(memory_get_peak_usage);
34:
35: PHPAPI void php_var_dump(zval **struc, int level TSRMLS_DC);
36: PHPAPI void php_var_export(zval **struc, int level TSRMLS_DC);
37: PHPAPI void php_var_export_ex(zval **struc, int level, smart_str *buf TSRMLS_DC);
38:
39: PHPAPI void php_debug_zval_dump(zval **struc, int level TSRMLS_DC);
40:
41: typedef HashTable* php_serialize_data_t;
42:
43: struct php_unserialize_data {
44: void *first;
45: void *last;
46: void *first_dtor;
47: void *last_dtor;
48: };
49:
50: typedef struct php_unserialize_data* php_unserialize_data_t;
51:
52: PHPAPI void php_var_serialize(smart_str *buf, zval **struc, php_serialize_data_t *var_hash TSRMLS_DC);
53: PHPAPI int php_var_unserialize(zval **rval, const unsigned char **p, const unsigned char *max, php_unserialize_data_t *var_hash TSRMLS_DC);
54:
55: #define PHP_VAR_SERIALIZE_INIT(var_hash_ptr) \
56: do { \
57: /* fprintf(stderr, "SERIALIZE_INIT == lock: %u, level: %u\n", BG(serialize_lock), BG(serialize).level); */ \
58: if (BG(serialize_lock) || !BG(serialize).level) { \
59: ALLOC_HASHTABLE(var_hash_ptr); \
60: zend_hash_init((var_hash_ptr), 10, NULL, NULL, 0); \
61: if (!BG(serialize_lock)) { \
62: BG(serialize).var_hash = (void *)(var_hash_ptr); \
63: BG(serialize).level = 1; \
64: } \
65: } else { \
66: (var_hash_ptr) = (php_serialize_data_t)BG(serialize).var_hash; \
67: ++BG(serialize).level; \
68: } \
69: } while(0)
70:
71: #define PHP_VAR_SERIALIZE_DESTROY(var_hash_ptr) \
72: do { \
73: /* fprintf(stderr, "SERIALIZE_DESTROY == lock: %u, level: %u\n", BG(serialize_lock), BG(serialize).level); */ \
74: if (BG(serialize_lock) || !BG(serialize).level) { \
75: zend_hash_destroy((var_hash_ptr)); \
76: FREE_HASHTABLE(var_hash_ptr); \
77: } else { \
78: if (!--BG(serialize).level) { \
79: zend_hash_destroy((php_serialize_data_t)BG(serialize).var_hash); \
80: FREE_HASHTABLE((php_serialize_data_t)BG(serialize).var_hash); \
81: BG(serialize).var_hash = NULL; \
82: } \
83: } \
84: } while (0)
85:
86: #define PHP_VAR_UNSERIALIZE_INIT(var_hash_ptr) \
87: do { \
88: /* fprintf(stderr, "UNSERIALIZE_INIT == lock: %u, level: %u\n", BG(serialize_lock), BG(unserialize).level); */ \
89: if (BG(serialize_lock) || !BG(unserialize).level) { \
90: (var_hash_ptr) = (php_unserialize_data_t)ecalloc(1, sizeof(struct php_unserialize_data)); \
91: if (!BG(serialize_lock)) { \
92: BG(unserialize).var_hash = (void *)(var_hash_ptr); \
93: BG(unserialize).level = 1; \
94: } \
95: } else { \
96: (var_hash_ptr) = (php_unserialize_data_t)BG(unserialize).var_hash; \
97: ++BG(unserialize).level; \
98: } \
99: } while (0)
100:
101: #define PHP_VAR_UNSERIALIZE_DESTROY(var_hash_ptr) \
102: do { \
103: /* fprintf(stderr, "UNSERIALIZE_DESTROY == lock: %u, level: %u\n", BG(serialize_lock), BG(unserialize).level); */ \
104: if (BG(serialize_lock) || !BG(unserialize).level) { \
105: var_destroy(&(var_hash_ptr)); \
106: efree(var_hash_ptr); \
107: } else { \
108: if (!--BG(unserialize).level) { \
109: var_destroy(&(var_hash_ptr)); \
110: efree((var_hash_ptr)); \
111: BG(unserialize).var_hash = NULL; \
112: } \
113: } \
114: } while (0)
115:
116: PHPAPI void var_replace(php_unserialize_data_t *var_hash, zval *ozval, zval **nzval);
117: PHPAPI void var_push_dtor(php_unserialize_data_t *var_hash, zval **val);
118: PHPAPI void var_push_dtor_no_addref(php_unserialize_data_t *var_hashx, zval **rval);
119: PHPAPI void var_destroy(php_unserialize_data_t *var_hash);
120:
121: #define PHP_VAR_UNSERIALIZE_ZVAL_CHANGED(var_hash, ozval, nzval) \
122: var_replace((var_hash), (ozval), &(nzval))
123:
124: PHPAPI zend_class_entry *php_create_empty_class(char *class_name, int len);
125:
126: static inline int php_varname_check(char *name, int name_len, zend_bool silent TSRMLS_DC) /* {{{ */
127: {
128: if (name_len == sizeof("GLOBALS") - 1 && !memcmp(name, "GLOBALS", sizeof("GLOBALS") - 1)) {
129: if (!silent) {
130: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Attempted GLOBALS variable overwrite");
131: }
132: return FAILURE;
133: } else if (name[0] == '_' &&
134: (
135: (name_len == sizeof("_GET") - 1 && !memcmp(name, "_GET", sizeof("_GET") - 1)) ||
136: (name_len == sizeof("_POST") - 1 && !memcmp(name, "_POST", sizeof("_POST") - 1)) ||
137: (name_len == sizeof("_COOKIE") - 1 && !memcmp(name, "_COOKIE", sizeof("_COOKIE") - 1)) ||
138: (name_len == sizeof("_ENV") - 1 && !memcmp(name, "_ENV", sizeof("_ENV") - 1)) ||
139: (name_len == sizeof("_SERVER") - 1 && !memcmp(name, "_SERVER", sizeof("_SERVER") - 1)) ||
140: (name_len == sizeof("_SESSION") - 1 && !memcmp(name, "_SESSION", sizeof("_SESSION") - 1)) ||
141: (name_len == sizeof("_FILES") - 1 && !memcmp(name, "_FILES", sizeof("_FILES") - 1)) ||
142: (name_len == sizeof("_REQUEST") -1 && !memcmp(name, "_REQUEST", sizeof("_REQUEST") - 1))
143: )
144: ) {
145: if (!silent) {
146: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Attempted super-global (%s) variable overwrite", name);
147: }
148: return FAILURE;
149: } else if (name[0] == 'H' &&
150: (
151: (name_len == sizeof("HTTP_POST_VARS") - 1 && !memcmp(name, "HTTP_POST_VARS", sizeof("HTTP_POST_VARS") - 1)) ||
152: (name_len == sizeof("HTTP_GET_VARS") - 1 && !memcmp(name, "HTTP_GET_VARS", sizeof("HTTP_GET_VARS") - 1)) ||
153: (name_len == sizeof("HTTP_COOKIE_VARS") - 1 && !memcmp(name, "HTTP_COOKIE_VARS", sizeof("HTTP_COOKIE_VARS") - 1)) ||
154: (name_len == sizeof("HTTP_ENV_VARS") - 1 && !memcmp(name, "HTTP_ENV_VARS", sizeof("HTTP_ENV_VARS") - 1)) ||
155: (name_len == sizeof("HTTP_SERVER_VARS") - 1 && !memcmp(name, "HTTP_SERVER_VARS", sizeof("HTTP_SERVER_VARS") - 1)) ||
156: (name_len == sizeof("HTTP_SESSION_VARS") - 1 && !memcmp(name, "HTTP_SESSION_VARS", sizeof("HTTP_SESSION_VARS") - 1)) ||
157: (name_len == sizeof("HTTP_RAW_POST_DATA") - 1 && !memcmp(name, "HTTP_RAW_POST_DATA", sizeof("HTTP_RAW_POST_DATA") - 1)) ||
158: (name_len == sizeof("HTTP_POST_FILES") - 1 && !memcmp(name, "HTTP_POST_FILES", sizeof("HTTP_POST_FILES") - 1))
159: )
160: ) {
161: if (!silent) {
162: php_error_docref(NULL TSRMLS_CC, E_WARNING, "Attempted long input array (%s) overwrite", name);
163: }
164: return FAILURE;
165: }
166: return SUCCESS;
167: }
168: /* }}} */
169:
170: #endif /* PHP_VAR_H */
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