xref: /PHP-7.4/ext/mysqli/php_mysqli_structs.h (revision c9abb0c0)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 7                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 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   | Authors: Georg Richter <georg@php.net>                               |
16   |          Andrey Hristov <andrey@php.net>                             |
17   |          Ulf Wendel <uw@php.net>                                     |
18   +----------------------------------------------------------------------+
19 */
20 
21 #ifndef PHP_MYSQLI_STRUCTS_H
22 #define PHP_MYSQLI_STRUCTS_H
23 
24 /* A little hack to prevent build break, when mysql is used together with
25  * c-client, which also defines LIST.
26  */
27 #ifdef LIST
28 #undef LIST
29 #endif
30 
31 #ifndef TRUE
32 #define TRUE 1
33 #endif
34 
35 #ifndef FALSE
36 #define FALSE 0
37 #endif
38 
39 #ifdef MYSQLI_USE_MYSQLND
40 #include "ext/mysqlnd/mysqlnd.h"
41 #include "mysqli_mysqlnd.h"
42 #else
43 
44 /*
45   The libmysql headers (a PITA) also define it and there will be an warning.
46   Undef it and later we might need to define it again.
47 */
48 #ifdef HAVE_MBRLEN
49 #undef HAVE_MBRLEN
50 #define WE_HAD_MBRLEN
51 #endif
52 #ifdef HAVE_MBSTATE_T
53 #undef HAVE_MBSTATE_T
54 #define WE_HAD_MBSTATE_T
55 #endif
56 
57 #if !defined(HAVE_MBRLEN) && defined(WE_HAD_MBRLEN)
58 #define HAVE_MBRLEN 1
59 #endif
60 
61 #if !defined(HAVE_MBSTATE_T) && defined(WE_HAD_MBSTATE_T)
62 #define HAVE_MBSTATE_T 1
63 #endif
64 
65 #include <mysql.h>
66 #if MYSQL_VERSION_ID >= 80000 &&  MYSQL_VERSION_ID < 100000
67 typedef _Bool		my_bool;
68 #endif
69 #include <errmsg.h>
70 #include <mysqld_error.h>
71 #include "mysqli_libmysql.h"
72 #endif /* MYSQLI_USE_MYSQLND */
73 
74 
75 #define MYSQLI_VERSION_ID		101009
76 
77 enum mysqli_status {
78 	MYSQLI_STATUS_UNKNOWN=0,
79 	MYSQLI_STATUS_CLEARED,
80 	MYSQLI_STATUS_INITIALIZED,
81 	MYSQLI_STATUS_VALID
82 };
83 
84 typedef struct {
85 	char		*val;
86 	zend_ulong		buflen;
87 	zend_ulong		output_len;
88 	zend_ulong		type;
89 } VAR_BUFFER;
90 
91 typedef struct {
92 	unsigned int	var_cnt;
93 	VAR_BUFFER		*buf;
94 	zval			*vars;
95 	char			*is_null;
96 } BIND_BUFFER;
97 
98 typedef struct {
99 	MYSQL_STMT	*stmt;
100 	BIND_BUFFER	param;
101 	BIND_BUFFER	result;
102 	char		*query;
103 #ifndef MYSQLI_USE_MYSQLND
104 	/* used to manage refcount with libmysql (already implement in mysqlnd) */
105 	zval		link_handle;
106 #endif
107 } MY_STMT;
108 
109 typedef struct {
110 	MYSQL			*mysql;
111 	zend_string		*hash_key;
112 	zval			li_read;
113 	php_stream		*li_stream;
114 	unsigned int 	multi_query;
115 	zend_bool		persistent;
116 #if defined(MYSQLI_USE_MYSQLND)
117 	int				async_result_fetch_type;
118 #endif
119 } MY_MYSQL;
120 
121 typedef struct {
122 	void				*ptr;		/* resource: (mysql, result, stmt)   */
123 	void				*info;		/* additional buffer				 */
124 	enum mysqli_status	status;		/* object status */
125 } MYSQLI_RESOURCE;
126 
127 typedef struct _mysqli_object {
128 	void 				*ptr;
129 	HashTable 			*prop_handler;
130 	zend_object 		zo;
131 } mysqli_object; /* extends zend_object */
132 
php_mysqli_fetch_object(zend_object * obj)133 static inline mysqli_object *php_mysqli_fetch_object(zend_object *obj) {
134 	return (mysqli_object *)((char*)(obj) - XtOffsetOf(mysqli_object, zo));
135 }
136 
137 #define Z_MYSQLI_P(zv) php_mysqli_fetch_object(Z_OBJ_P((zv)))
138 
139 typedef struct st_mysqli_warning MYSQLI_WARNING;
140 
141 struct st_mysqli_warning {
142 	zval	reason;
143 	zval	sqlstate;
144 	int		errorno;
145    	MYSQLI_WARNING	*next;
146 };
147 
148 typedef struct _mysqli_property_entry {
149 	const char *pname;
150 	size_t pname_length;
151 	int (*r_func)(mysqli_object *obj, zval *retval, zend_bool quiet);
152 	int (*w_func)(mysqli_object *obj, zval *value);
153 } mysqli_property_entry;
154 
155 typedef struct {
156 	zend_ptr_stack free_links;
157 } mysqli_plist_entry;
158 
159 #ifdef PHP_WIN32
160 #define PHP_MYSQLI_API __declspec(dllexport)
161 #define MYSQLI_LLU_SPEC "%I64u"
162 #define MYSQLI_LL_SPEC "%I64d"
163 #ifndef L64
164 #define L64(x) x##i64
165 #endif
166 typedef __int64 my_longlong;
167 #else
168 # if defined(__GNUC__) && __GNUC__ >= 4
169 #  define PHP_MYSQLI_API __attribute__ ((visibility("default")))
170 # else
171 #  define PHP_MYSQLI_API
172 # endif
173 /* we need this for PRIu64 and PRId64 */
174 #include <inttypes.h>
175 #define MYSQLI_LLU_SPEC "%" PRIu64
176 #define MYSQLI_LL_SPEC "%" PRId64
177 #ifndef L64
178 #define L64(x) x##LL
179 #endif
180 typedef int64_t my_longlong;
181 #endif
182 
183 #ifdef ZTS
184 #include "TSRM.h"
185 #endif
186 
187 extern zend_class_entry *mysqli_link_class_entry;
188 extern zend_class_entry *mysqli_stmt_class_entry;
189 extern zend_class_entry *mysqli_result_class_entry;
190 extern zend_class_entry *mysqli_driver_class_entry;
191 extern zend_class_entry *mysqli_warning_class_entry;
192 extern zend_class_entry *mysqli_exception_class_entry;
193 extern int php_le_pmysqli(void);
194 extern void php_mysqli_dtor_p_elements(void *data);
195 
196 extern void php_mysqli_close(MY_MYSQL * mysql, int close_type, int resource_status);
197 
198 extern const zend_object_iterator_funcs php_mysqli_result_iterator_funcs;
199 extern zend_object_iterator *php_mysqli_result_get_iterator(zend_class_entry *ce, zval *object, int by_ref);
200 
201 extern void php_mysqli_fetch_into_hash_aux(zval *return_value, MYSQL_RES * result, zend_long fetchtype);
202 
203 #define MYSQLI_DISABLE_MQ if (mysql->multi_query) { \
204 	mysql_set_server_option(mysql->mysql, MYSQL_OPTION_MULTI_STATEMENTS_OFF); \
205 	mysql->multi_query = 0; \
206 }
207 
208 #define MYSQLI_ENABLE_MQ if (!mysql->multi_query) { \
209 	mysql_set_server_option(mysql->mysql, MYSQL_OPTION_MULTI_STATEMENTS_ON); \
210 	mysql->multi_query = 1; \
211 }
212 
213 #define REGISTER_MYSQLI_CLASS_ENTRY(name, mysqli_entry, class_functions) { \
214 	zend_class_entry ce; \
215 	INIT_CLASS_ENTRY(ce, name,class_functions); \
216 	ce.create_object = mysqli_objects_new; \
217 	mysqli_entry = zend_register_internal_class(&ce); \
218 } \
219 
220 #define MYSQLI_REGISTER_RESOURCE_EX(__ptr, __zval)  \
221 	(Z_MYSQLI_P(__zval))->ptr = __ptr;
222 
223 #define MYSQLI_RETURN_RESOURCE(__ptr, __ce) \
224 	RETVAL_OBJ(mysqli_objects_new(__ce)); \
225 	MYSQLI_REGISTER_RESOURCE_EX(__ptr, return_value)
226 
227 #define MYSQLI_REGISTER_RESOURCE(__ptr, __ce) \
228 {\
229 	zval *object = getThis(); \
230 	if (!object || !instanceof_function(Z_OBJCE_P(object), mysqli_link_class_entry)) { \
231 		object = return_value; \
232 		ZVAL_OBJ(object, mysqli_objects_new(__ce)); \
233 	} \
234 	MYSQLI_REGISTER_RESOURCE_EX(__ptr, object)\
235 }
236 
237 #define MYSQLI_FETCH_RESOURCE(__ptr, __type, __id, __name, __check) \
238 { \
239 	MYSQLI_RESOURCE *my_res; \
240 	mysqli_object *intern = Z_MYSQLI_P(__id); \
241 	if (!(my_res = (MYSQLI_RESOURCE *)intern->ptr)) {\
242   		php_error_docref(NULL, E_WARNING, "Couldn't fetch %s", ZSTR_VAL(intern->zo.ce->name));\
243 		RETURN_FALSE;\
244   	}\
245 	__ptr = (__type)my_res->ptr; \
246 	if (__check && my_res->status < __check) { \
247 		php_error_docref(NULL, E_WARNING, "invalid object or resource %s\n", ZSTR_VAL(intern->zo.ce->name)); \
248 		RETURN_FALSE;\
249 	}\
250 }
251 
252 #define MYSQLI_FETCH_RESOURCE_BY_OBJ(__ptr, __type, __obj, __name, __check) \
253 { \
254 	MYSQLI_RESOURCE *my_res; \
255 	if (!(my_res = (MYSQLI_RESOURCE *)(__obj->ptr))) {\
256   		php_error_docref(NULL, E_WARNING, "Couldn't fetch %s", ZSTR_VAL(intern->zo.ce->name));\
257   		return;\
258   	}\
259 	__ptr = (__type)my_res->ptr; \
260 	if (__check && my_res->status < __check) { \
261 		php_error_docref(NULL, E_WARNING, "invalid object or resource %s\n", ZSTR_VAL(intern->zo.ce->name)); \
262 		return;\
263 	}\
264 }
265 
266 #define MYSQLI_FETCH_RESOURCE_CONN(__ptr, __id, __check) \
267 { \
268 	MYSQLI_FETCH_RESOURCE((__ptr), MY_MYSQL *, (__id), "mysqli_link", (__check)); \
269 	if (!(__ptr)->mysql) { \
270 		mysqli_object *intern = Z_MYSQLI_P(__id); \
271 		php_error_docref(NULL, E_WARNING, "invalid object or resource %s\n", ZSTR_VAL(intern->zo.ce->name)); \
272 		RETURN_NULL(); \
273 	} \
274 }
275 
276 #define MYSQLI_FETCH_RESOURCE_STMT(__ptr, __id, __check) \
277 { \
278 	MYSQLI_FETCH_RESOURCE((__ptr), MY_STMT *, (__id), "mysqli_stmt", (__check)); \
279 	if (!(__ptr)->stmt) { \
280 		mysqli_object *intern = Z_MYSQLI_P(__id); \
281 		php_error_docref(NULL, E_WARNING, "invalid object or resource %s\n", ZSTR_VAL(intern->zo.ce->name)); \
282 		RETURN_NULL();\
283 	} \
284 }
285 
286 #define MYSQLI_SET_STATUS(__id, __value) \
287 { \
288 	mysqli_object *intern = Z_MYSQLI_P(__id); \
289 	((MYSQLI_RESOURCE *)intern->ptr)->status = __value; \
290 } \
291 
292 #define MYSQLI_CLEAR_RESOURCE(__id) \
293 { \
294 	mysqli_object *intern = Z_MYSQLI_P(__id); \
295 	efree(intern->ptr); \
296 	intern->ptr = NULL; \
297 }
298 
299 
300 ZEND_BEGIN_MODULE_GLOBALS(mysqli)
301 	zend_long			default_link;
302 	zend_long			num_links;
303 	zend_long			max_links;
304 	zend_long 			num_active_persistent;
305 	zend_long 			num_inactive_persistent;
306 	zend_long			max_persistent;
307 	zend_long			allow_persistent;
308 	zend_ulong	default_port;
309 	char			*default_host;
310 	char			*default_user;
311 	char			*default_socket;
312 	char			*default_pw;
313 	zend_long			reconnect;
314 	zend_long			allow_local_infile;
315 	zend_long			strict;
316 	zend_long			error_no;
317 	char			*error_msg;
318 	zend_long			report_mode;
319 	HashTable		*report_ht;
320 	zend_ulong	multi_query;
321 	zend_ulong	embedded;
322 	zend_bool 		rollback_on_cached_plink;
323 ZEND_END_MODULE_GLOBALS(mysqli)
324 
325 #define MyG(v) ZEND_MODULE_GLOBALS_ACCESSOR(mysqli, v)
326 
327 #if defined(ZTS) && defined(COMPILE_DL_MYSQLI)
328 ZEND_TSRMLS_CACHE_EXTERN()
329 #endif
330 
331 ZEND_EXTERN_MODULE_GLOBALS(mysqli)
332 
333 #endif	/* PHP_MYSQLI_STRUCTS.H */
334