xref: /PHP-7.0/ext/pdo_mysql/mysql_driver.c (revision 51cdd3dc)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 7                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2017 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: George Schlossnagle <george@omniti.com>                      |
16   |         Wez Furlong <wez@php.net>                                    |
17   |         Johannes Schlueter <johannes@mysql.com>                      |
18   +----------------------------------------------------------------------+
19 */
20 
21 /* $Id$ */
22 
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26 
27 #include "php.h"
28 #include "php_ini.h"
29 #include "ext/standard/info.h"
30 #include "pdo/php_pdo.h"
31 #include "pdo/php_pdo_driver.h"
32 #include "php_pdo_mysql.h"
33 #include "php_pdo_mysql_int.h"
34 #ifndef PDO_USE_MYSQLND
35 #include <mysqld_error.h>
36 #endif
37 #include "zend_exceptions.h"
38 
39 #if defined(PDO_USE_MYSQLND)
40 #	define pdo_mysql_init(persistent) mysqlnd_init(MYSQLND_CLIENT_NO_FLAG, persistent)
41 #else
42 #	define pdo_mysql_init(persistent) mysql_init(NULL)
43 #endif
44 
45 /* {{{ _pdo_mysql_error */
_pdo_mysql_error(pdo_dbh_t * dbh,pdo_stmt_t * stmt,const char * file,int line)46 int _pdo_mysql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line)
47 {
48 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
49 	pdo_error_type *pdo_err;
50 	pdo_mysql_error_info *einfo;
51 	pdo_mysql_stmt *S = NULL;
52 
53 	PDO_DBG_ENTER("_pdo_mysql_error");
54 	PDO_DBG_INF_FMT("file=%s line=%d", file, line);
55 	if (stmt) {
56 		S = (pdo_mysql_stmt*)stmt->driver_data;
57 		pdo_err = &stmt->error_code;
58 		einfo   = &S->einfo;
59 	} else {
60 		pdo_err = &dbh->error_code;
61 		einfo   = &H->einfo;
62 	}
63 
64 	if (S && S->stmt) {
65 		einfo->errcode = mysql_stmt_errno(S->stmt);
66 	} else {
67 		einfo->errcode = mysql_errno(H->server);
68 	}
69 
70 	einfo->file = file;
71 	einfo->line = line;
72 
73 	if (einfo->errmsg) {
74 		pefree(einfo->errmsg, dbh->is_persistent);
75 		einfo->errmsg = NULL;
76 	}
77 
78 	if (einfo->errcode) {
79 		if (einfo->errcode == 2014) {
80 			einfo->errmsg = pestrdup(
81 				"Cannot execute queries while other unbuffered queries are active.  "
82 				"Consider using PDOStatement::fetchAll().  Alternatively, if your code "
83 				"is only ever going to run against mysql, you may enable query "
84 				"buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute.",
85 				dbh->is_persistent);
86 		} else if (einfo->errcode == 2057) {
87 			einfo->errmsg = pestrdup(
88 				"A stored procedure returning result sets of different size was called. "
89 				"This is not supported by libmysql",
90 				dbh->is_persistent);
91 
92 		} else {
93 			einfo->errmsg = pestrdup(mysql_error(H->server), dbh->is_persistent);
94 		}
95 	} else { /* no error */
96 		strcpy(*pdo_err, PDO_ERR_NONE);
97 		PDO_DBG_RETURN(0);
98 	}
99 
100 	if (S && S->stmt) {
101 		strcpy(*pdo_err, mysql_stmt_sqlstate(S->stmt));
102 	} else {
103 		strcpy(*pdo_err, mysql_sqlstate(H->server));
104 	}
105 
106 	if (!dbh->methods) {
107 		PDO_DBG_INF("Throwing exception");
108 		zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode, "SQLSTATE[%s] [%d] %s",
109 				*pdo_err, einfo->errcode, einfo->errmsg);
110 	}
111 
112 	PDO_DBG_RETURN(einfo->errcode);
113 }
114 /* }}} */
115 
116 /* {{{ pdo_mysql_fetch_error_func */
pdo_mysql_fetch_error_func(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info)117 static int pdo_mysql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
118 {
119 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
120 	pdo_mysql_error_info *einfo = &H->einfo;
121 
122 	PDO_DBG_ENTER("pdo_mysql_fetch_error_func");
123 	PDO_DBG_INF_FMT("dbh=%p stmt=%p", dbh, stmt);
124 	if (stmt) {
125 		pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
126 		einfo = &S->einfo;
127 	} else {
128 		einfo = &H->einfo;
129 	}
130 
131 	if (einfo->errcode) {
132 		add_next_index_long(info, einfo->errcode);
133 		add_next_index_string(info, einfo->errmsg);
134 	}
135 
136 	PDO_DBG_RETURN(1);
137 }
138 /* }}} */
139 
140 /* {{{ mysql_handle_closer */
mysql_handle_closer(pdo_dbh_t * dbh)141 static int mysql_handle_closer(pdo_dbh_t *dbh)
142 {
143 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
144 
145 	PDO_DBG_ENTER("mysql_handle_closer");
146 	PDO_DBG_INF_FMT("dbh=%p", dbh);
147 	if (H) {
148 		if (H->server) {
149 			mysql_close(H->server);
150 		}
151 		if (H->einfo.errmsg) {
152 			pefree(H->einfo.errmsg, dbh->is_persistent);
153 		}
154 		pefree(H, dbh->is_persistent);
155 		dbh->driver_data = NULL;
156 	}
157 	PDO_DBG_RETURN(0);
158 }
159 /* }}} */
160 
161 /* {{{ mysql_handle_preparer */
mysql_handle_preparer(pdo_dbh_t * dbh,const char * sql,size_t sql_len,pdo_stmt_t * stmt,zval * driver_options)162 static int mysql_handle_preparer(pdo_dbh_t *dbh, const char *sql, size_t sql_len, pdo_stmt_t *stmt, zval *driver_options)
163 {
164 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
165 	pdo_mysql_stmt *S = ecalloc(1, sizeof(pdo_mysql_stmt));
166 	char *nsql = NULL;
167 	size_t nsql_len = 0;
168 	int ret;
169 	int server_version;
170 
171 	PDO_DBG_ENTER("mysql_handle_preparer");
172 	PDO_DBG_INF_FMT("dbh=%p", dbh);
173 	PDO_DBG_INF_FMT("sql=%.*s", (int)sql_len, sql);
174 
175 	S->H = H;
176 	stmt->driver_data = S;
177 	stmt->methods = &mysql_stmt_methods;
178 
179 	if (H->emulate_prepare) {
180 		goto end;
181 	}
182 
183 	server_version = mysql_get_server_version(H->server);
184 	if (server_version < 40100) {
185 		goto fallback;
186 	}
187 	stmt->supports_placeholders = PDO_PLACEHOLDER_POSITIONAL;
188 	ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len);
189 
190 	if (ret == 1) {
191 		/* query was rewritten */
192 		sql = nsql;
193 		sql_len = nsql_len;
194 	} else if (ret == -1) {
195 		/* failed to parse */
196 		strcpy(dbh->error_code, stmt->error_code);
197 		PDO_DBG_RETURN(0);
198 	}
199 
200 	if (!(S->stmt = mysql_stmt_init(H->server))) {
201 		pdo_mysql_error(dbh);
202 		if (nsql) {
203 			efree(nsql);
204 		}
205 		PDO_DBG_RETURN(0);
206 	}
207 
208 	if (mysql_stmt_prepare(S->stmt, sql, sql_len)) {
209 		/* TODO: might need to pull statement specific info here? */
210 		/* if the query isn't supported by the protocol, fallback to emulation */
211 		if (mysql_errno(H->server) == 1295) {
212 			if (nsql) {
213 				efree(nsql);
214 			}
215 			goto fallback;
216 		}
217 		pdo_mysql_error(dbh);
218 		if (nsql) {
219 			efree(nsql);
220 		}
221 		PDO_DBG_RETURN(0);
222 	}
223 	if (nsql) {
224 		efree(nsql);
225 	}
226 
227 	S->num_params = mysql_stmt_param_count(S->stmt);
228 
229 	if (S->num_params) {
230 		S->params_given = 0;
231 #if defined(PDO_USE_MYSQLND)
232 		S->params = NULL;
233 #else
234 		S->params = ecalloc(S->num_params, sizeof(MYSQL_BIND));
235 		S->in_null = ecalloc(S->num_params, sizeof(my_bool));
236 		S->in_length = ecalloc(S->num_params, sizeof(zend_ulong));
237 #endif
238 	}
239 	dbh->alloc_own_columns = 1;
240 
241 	S->max_length = pdo_attr_lval(driver_options, PDO_ATTR_MAX_COLUMN_LEN, 0);
242 
243 	PDO_DBG_RETURN(1);
244 
245 fallback:
246 end:
247 	stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
248 
249 	PDO_DBG_RETURN(1);
250 }
251 /* }}} */
252 
253 /* {{{ mysql_handle_doer */
mysql_handle_doer(pdo_dbh_t * dbh,const char * sql,size_t sql_len)254 static zend_long mysql_handle_doer(pdo_dbh_t *dbh, const char *sql, size_t sql_len)
255 {
256 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
257 	PDO_DBG_ENTER("mysql_handle_doer");
258 	PDO_DBG_INF_FMT("dbh=%p", dbh);
259 	PDO_DBG_INF_FMT("sql=%.*s", (int)sql_len, sql);
260 
261 	if (mysql_real_query(H->server, sql, sql_len)) {
262 		pdo_mysql_error(dbh);
263 		PDO_DBG_RETURN(-1);
264 	} else {
265 		my_ulonglong c = mysql_affected_rows(H->server);
266 		if (c == (my_ulonglong) -1) {
267 			pdo_mysql_error(dbh);
268 			PDO_DBG_RETURN(H->einfo.errcode ? -1 : 0);
269 		} else {
270 
271 			/* MULTI_QUERY support - eat up all unfetched result sets */
272 			MYSQL_RES* result;
273 			while (mysql_more_results(H->server)) {
274 				if (mysql_next_result(H->server)) {
275 					PDO_DBG_RETURN(1);
276 				}
277 				result = mysql_store_result(H->server);
278 				if (result) {
279 					mysql_free_result(result);
280 				}
281 			}
282 			PDO_DBG_RETURN((int)c);
283 		}
284 	}
285 }
286 /* }}} */
287 
288 /* {{{ pdo_mysql_last_insert_id */
pdo_mysql_last_insert_id(pdo_dbh_t * dbh,const char * name,size_t * len)289 static char *pdo_mysql_last_insert_id(pdo_dbh_t *dbh, const char *name, size_t *len)
290 {
291 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
292 	char *id = php_pdo_int64_to_str(mysql_insert_id(H->server));
293 	PDO_DBG_ENTER("pdo_mysql_last_insert_id");
294 	*len = strlen(id);
295 	PDO_DBG_RETURN(id);
296 }
297 /* }}} */
298 
299 /* {{{ mysql_handle_quoter */
mysql_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,size_t unquotedlen,char ** quoted,size_t * quotedlen,enum pdo_param_type paramtype)300 static int mysql_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, size_t unquotedlen, char **quoted, size_t *quotedlen, enum pdo_param_type paramtype )
301 {
302 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
303 	PDO_DBG_ENTER("mysql_handle_quoter");
304 	PDO_DBG_INF_FMT("dbh=%p", dbh);
305 	PDO_DBG_INF_FMT("unquoted=%.*s", (int)unquotedlen, unquoted);
306 	*quoted = safe_emalloc(2, unquotedlen, 3);
307 	*quotedlen = mysql_real_escape_string(H->server, *quoted + 1, unquoted, unquotedlen);
308 	(*quoted)[0] =(*quoted)[++*quotedlen] = '\'';
309 	(*quoted)[++*quotedlen] = '\0';
310 	PDO_DBG_INF_FMT("quoted=%.*s", (int)*quotedlen, *quoted);
311 	PDO_DBG_RETURN(1);
312 }
313 /* }}} */
314 
315 /* {{{ mysql_handle_begin */
mysql_handle_begin(pdo_dbh_t * dbh)316 static int mysql_handle_begin(pdo_dbh_t *dbh)
317 {
318 	PDO_DBG_ENTER("mysql_handle_quoter");
319 	PDO_DBG_INF_FMT("dbh=%p", dbh);
320 	PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("START TRANSACTION")));
321 }
322 /* }}} */
323 
324 /* {{{ mysql_handle_commit */
mysql_handle_commit(pdo_dbh_t * dbh)325 static int mysql_handle_commit(pdo_dbh_t *dbh)
326 {
327 	PDO_DBG_ENTER("mysql_handle_commit");
328 	PDO_DBG_INF_FMT("dbh=%p", dbh);
329 #if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
330 	PDO_DBG_RETURN(0 == mysql_commit(((pdo_mysql_db_handle *)dbh->driver_data)->server));
331 #else
332 	PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("COMMIT")));
333 #endif
334 }
335 /* }}} */
336 
337 /* {{{ mysql_handle_rollback */
mysql_handle_rollback(pdo_dbh_t * dbh)338 static int mysql_handle_rollback(pdo_dbh_t *dbh)
339 {
340 	PDO_DBG_ENTER("mysql_handle_rollback");
341 	PDO_DBG_INF_FMT("dbh=%p", dbh);
342 #if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
343 	PDO_DBG_RETURN(0 <= mysql_rollback(((pdo_mysql_db_handle *)dbh->driver_data)->server));
344 #else
345 	PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("ROLLBACK")));
346 #endif
347 }
348 /* }}} */
349 
350 /* {{{ mysql_handle_autocommit */
mysql_handle_autocommit(pdo_dbh_t * dbh)351 static inline int mysql_handle_autocommit(pdo_dbh_t *dbh)
352 {
353 	PDO_DBG_ENTER("mysql_handle_autocommit");
354 	PDO_DBG_INF_FMT("dbh=%p", dbh);
355 	PDO_DBG_INF_FMT("dbh->autocommit=%d", dbh->auto_commit);
356 #if MYSQL_VERSION_ID >= 40100 || defined(PDO_USE_MYSQLND)
357 	PDO_DBG_RETURN(0 <= mysql_autocommit(((pdo_mysql_db_handle *)dbh->driver_data)->server, dbh->auto_commit));
358 #else
359 	if (dbh->auto_commit) {
360 		PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("SET AUTOCOMMIT=1")));
361 	} else {
362 		PDO_DBG_RETURN(0 <= mysql_handle_doer(dbh, ZEND_STRL("SET AUTOCOMMIT=0")));
363 	}
364 #endif
365 }
366 /* }}} */
367 
368 /* {{{ pdo_mysql_set_attribute */
pdo_mysql_set_attribute(pdo_dbh_t * dbh,zend_long attr,zval * val)369 static int pdo_mysql_set_attribute(pdo_dbh_t *dbh, zend_long attr, zval *val)
370 {
371 	zend_long lval = zval_get_long(val);
372 	zend_bool bval = lval? 1 : 0;
373 	PDO_DBG_ENTER("pdo_mysql_set_attribute");
374 	PDO_DBG_INF_FMT("dbh=%p", dbh);
375 	PDO_DBG_INF_FMT("attr=%l", attr);
376 	switch (attr) {
377 		case PDO_ATTR_AUTOCOMMIT:
378 			/* ignore if the new value equals the old one */
379 			if (dbh->auto_commit ^ bval) {
380 				dbh->auto_commit = bval;
381 				mysql_handle_autocommit(dbh);
382 			}
383 			PDO_DBG_RETURN(1);
384 
385 		case PDO_MYSQL_ATTR_USE_BUFFERED_QUERY:
386 			/* ignore if the new value equals the old one */
387 			((pdo_mysql_db_handle *)dbh->driver_data)->buffered = bval;
388 			PDO_DBG_RETURN(1);
389 		case PDO_MYSQL_ATTR_DIRECT_QUERY:
390 		case PDO_ATTR_EMULATE_PREPARES:
391 			/* ignore if the new value equals the old one */
392 			((pdo_mysql_db_handle *)dbh->driver_data)->emulate_prepare = bval;
393 			PDO_DBG_RETURN(1);
394 		case PDO_ATTR_FETCH_TABLE_NAMES:
395 			((pdo_mysql_db_handle *)dbh->driver_data)->fetch_table_names = bval;
396 			PDO_DBG_RETURN(1);
397 #ifndef PDO_USE_MYSQLND
398 		case PDO_MYSQL_ATTR_MAX_BUFFER_SIZE:
399 			if (lval < 0) {
400 				/* TODO: Johannes, can we throw a warning here? */
401  				((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size = 1024*1024;
402 				PDO_DBG_INF_FMT("Adjusting invalid buffer size to =%l", ((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size);
403 			} else {
404 				((pdo_mysql_db_handle *)dbh->driver_data)->max_buffer_size = lval;
405 			}
406 			PDO_DBG_RETURN(1);
407 			break;
408 #endif
409 
410 		default:
411 			PDO_DBG_RETURN(0);
412 	}
413 }
414 /* }}} */
415 
416 /* {{{ pdo_mysql_get_attribute */
pdo_mysql_get_attribute(pdo_dbh_t * dbh,zend_long attr,zval * return_value)417 static int pdo_mysql_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *return_value)
418 {
419 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
420 
421 	PDO_DBG_ENTER("pdo_mysql_get_attribute");
422 	PDO_DBG_INF_FMT("dbh=%p", dbh);
423 	PDO_DBG_INF_FMT("attr=%l", attr);
424 	switch (attr) {
425 		case PDO_ATTR_CLIENT_VERSION:
426 			ZVAL_STRING(return_value, (char *)mysql_get_client_info());
427 			break;
428 
429 		case PDO_ATTR_SERVER_VERSION:
430 			ZVAL_STRING(return_value, (char *)mysql_get_server_info(H->server));
431 			break;
432 
433 		case PDO_ATTR_CONNECTION_STATUS:
434 			ZVAL_STRING(return_value, (char *)mysql_get_host_info(H->server));
435 			break;
436 		case PDO_ATTR_SERVER_INFO: {
437 #if defined(PDO_USE_MYSQLND)
438 			zend_string *tmp;
439 
440 			if (mysqlnd_stat(H->server, &tmp) == PASS) {
441 				ZVAL_STR(return_value, tmp);
442 #else
443 			char *tmp;
444 			if ((tmp = (char *)mysql_stat(H->server))) {
445 				ZVAL_STRING(return_value, tmp);
446 #endif
447 			} else {
448 				pdo_mysql_error(dbh);
449 				PDO_DBG_RETURN(-1);
450 			}
451 		}
452 			break;
453 		case PDO_ATTR_AUTOCOMMIT:
454 			ZVAL_LONG(return_value, dbh->auto_commit);
455 			break;
456 
457 		case PDO_MYSQL_ATTR_USE_BUFFERED_QUERY:
458 			ZVAL_LONG(return_value, H->buffered);
459 			break;
460 
461 		case PDO_ATTR_EMULATE_PREPARES:
462 		case PDO_MYSQL_ATTR_DIRECT_QUERY:
463 			ZVAL_LONG(return_value, H->emulate_prepare);
464 			break;
465 
466 #ifndef PDO_USE_MYSQLND
467 		case PDO_MYSQL_ATTR_MAX_BUFFER_SIZE:
468 			ZVAL_LONG(return_value, H->max_buffer_size);
469 			break;
470 #endif
471 
472 		default:
473 			PDO_DBG_RETURN(0);
474 	}
475 
476 	PDO_DBG_RETURN(1);
477 }
478 /* }}} */
479 
480 /* {{{ pdo_mysql_check_liveness */
481 static int pdo_mysql_check_liveness(pdo_dbh_t *dbh)
482 {
483 	pdo_mysql_db_handle *H = (pdo_mysql_db_handle *)dbh->driver_data;
484 #if MYSQL_VERSION_ID <= 32230
485 	void (*handler) (int);
486 	unsigned int my_errno;
487 #endif
488 
489 	PDO_DBG_ENTER("pdo_mysql_check_liveness");
490 	PDO_DBG_INF_FMT("dbh=%p", dbh);
491 
492 #if MYSQL_VERSION_ID > 32230
493 	if (mysql_ping(H->server)) {
494 		PDO_DBG_RETURN(FAILURE);
495 	}
496 #else /* no mysql_ping() */
497 	handler = signal(SIGPIPE, SIG_IGN);
498 	mysql_stat(H->server);
499 	switch (mysql_errno(H->server)) {
500 		case CR_SERVER_GONE_ERROR:
501 		case CR_SERVER_LOST:
502 			signal(SIGPIPE, handler);
503 			PDO_DBG_RETURN(FAILURE);
504 		default:
505 			break;
506 	}
507 	signal(SIGPIPE, handler);
508 #endif /* end mysql_ping() */
509 	PDO_DBG_RETURN(SUCCESS);
510 }
511 /* }}} */
512 
513 /* {{{ mysql_methods */
514 static struct pdo_dbh_methods mysql_methods = {
515 	mysql_handle_closer,
516 	mysql_handle_preparer,
517 	mysql_handle_doer,
518 	mysql_handle_quoter,
519 	mysql_handle_begin,
520 	mysql_handle_commit,
521 	mysql_handle_rollback,
522 	pdo_mysql_set_attribute,
523 	pdo_mysql_last_insert_id,
524 	pdo_mysql_fetch_error_func,
525 	pdo_mysql_get_attribute,
526 	pdo_mysql_check_liveness
527 };
528 /* }}} */
529 
530 #ifdef PHP_WIN32
531 # define PDO_DEFAULT_MYSQL_UNIX_ADDR	NULL
532 #else
533 # define PDO_DEFAULT_MYSQL_UNIX_ADDR	PDO_MYSQL_G(default_socket)
534 #endif
535 
536 /* {{{ pdo_mysql_handle_factory */
537 static int pdo_mysql_handle_factory(pdo_dbh_t *dbh, zval *driver_options)
538 {
539 	pdo_mysql_db_handle *H;
540 	int i, ret = 0;
541 	char *host = NULL, *unix_socket = NULL;
542 	unsigned int port = 3306;
543 	char *dbname;
544 	struct pdo_data_src_parser vars[] = {
545 		{ "charset",  NULL,	0 },
546 		{ "dbname",   "",	0 },
547 		{ "host",   "localhost",	0 },
548 		{ "port",   "3306",	0 },
549 		{ "unix_socket",  PDO_DEFAULT_MYSQL_UNIX_ADDR,	0 },
550 	};
551 	int connect_opts = 0
552 #ifdef CLIENT_MULTI_RESULTS
553 		|CLIENT_MULTI_RESULTS
554 #endif
555 		;
556 #if defined(PDO_USE_MYSQLND)
557 	size_t dbname_len = 0;
558 	size_t password_len = 0;
559 #endif
560 
561 #ifdef CLIENT_MULTI_STATEMENTS
562 	if (!driver_options) {
563 		connect_opts |= CLIENT_MULTI_STATEMENTS;
564 	} else if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_MULTI_STATEMENTS, 1)) {
565 		connect_opts |= CLIENT_MULTI_STATEMENTS;
566 	}
567 #endif
568 
569 	PDO_DBG_ENTER("pdo_mysql_handle_factory");
570 	PDO_DBG_INF_FMT("dbh=%p", dbh);
571 #ifdef CLIENT_MULTI_RESULTS
572 	PDO_DBG_INF("multi results");
573 #endif
574 
575 	php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, 5);
576 
577 	H = pecalloc(1, sizeof(pdo_mysql_db_handle), dbh->is_persistent);
578 
579 	H->einfo.errcode = 0;
580 	H->einfo.errmsg = NULL;
581 
582 	/* allocate an environment */
583 
584 	/* handle for the server */
585 	if (!(H->server = pdo_mysql_init(dbh->is_persistent))) {
586 		pdo_mysql_error(dbh);
587 		goto cleanup;
588 	}
589 
590 	dbh->driver_data = H;
591 
592 #ifndef PDO_USE_MYSQLND
593 	H->max_buffer_size = 1024*1024;
594 #endif
595 
596 	H->buffered = H->emulate_prepare = 1;
597 
598 	/* handle MySQL options */
599 	if (driver_options) {
600 		zend_long connect_timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, 30);
601 		zend_long local_infile = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_LOCAL_INFILE, 0);
602 		zend_string *init_cmd = NULL;
603 #ifndef PDO_USE_MYSQLND
604 		zend_string *default_file = NULL, *default_group = NULL;
605 #endif
606 		zend_long compress = 0;
607 		zend_string *ssl_key = NULL, *ssl_cert = NULL, *ssl_ca = NULL, *ssl_capath = NULL, *ssl_cipher = NULL;
608 		H->buffered = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_USE_BUFFERED_QUERY, 1);
609 
610 		H->emulate_prepare = pdo_attr_lval(driver_options,
611 			PDO_MYSQL_ATTR_DIRECT_QUERY, H->emulate_prepare);
612 		H->emulate_prepare = pdo_attr_lval(driver_options,
613 			PDO_ATTR_EMULATE_PREPARES, H->emulate_prepare);
614 
615 #ifndef PDO_USE_MYSQLND
616 		H->max_buffer_size = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_MAX_BUFFER_SIZE, H->max_buffer_size);
617 #endif
618 
619 		if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_FOUND_ROWS, 0)) {
620 			connect_opts |= CLIENT_FOUND_ROWS;
621 		}
622 
623 		if (pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_IGNORE_SPACE, 0)) {
624 			connect_opts |= CLIENT_IGNORE_SPACE;
625 		}
626 
627 		if (mysql_options(H->server, MYSQL_OPT_CONNECT_TIMEOUT, (const char *)&connect_timeout)) {
628 			pdo_mysql_error(dbh);
629 			goto cleanup;
630 		}
631 
632 #ifndef PDO_USE_MYSQLND
633 #if PHP_API_VERSION < 20100412
634 		if ((PG(open_basedir) && PG(open_basedir)[0] != '\0') || PG(safe_mode))
635 #else
636 		if (PG(open_basedir) && PG(open_basedir)[0] != '\0')
637 #endif
638 		{
639 			local_infile = 0;
640 		}
641 #endif
642 #if defined(MYSQL_OPT_LOCAL_INFILE) || defined(PDO_USE_MYSQLND)
643 		if (mysql_options(H->server, MYSQL_OPT_LOCAL_INFILE, (const char *)&local_infile)) {
644 			pdo_mysql_error(dbh);
645 			goto cleanup;
646 		}
647 #endif
648 #ifdef MYSQL_OPT_RECONNECT
649 		/* since 5.0.3, the default for this option is 0 if not specified.
650 		 * we want the old behaviour
651 		 * mysqlnd doesn't support reconnect, thus we don't have "|| defined(PDO_USE_MYSQLND)"
652 		*/
653 		{
654 			zend_long reconnect = 1;
655 			mysql_options(H->server, MYSQL_OPT_RECONNECT, (const char*)&reconnect);
656 		}
657 #endif
658 		init_cmd = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_INIT_COMMAND, NULL);
659 		if (init_cmd) {
660 			if (mysql_options(H->server, MYSQL_INIT_COMMAND, (const char *)ZSTR_VAL(init_cmd))) {
661 				zend_string_release(init_cmd);
662 				pdo_mysql_error(dbh);
663 				goto cleanup;
664 			}
665 			zend_string_release(init_cmd);
666 		}
667 #ifndef PDO_USE_MYSQLND
668 		default_file = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_READ_DEFAULT_FILE, NULL);
669 		if (default_file) {
670 			if (mysql_options(H->server, MYSQL_READ_DEFAULT_FILE, (const char *)ZSTR_VAL(default_file))) {
671 				zend_string_release(default_file);
672 				pdo_mysql_error(dbh);
673 				goto cleanup;
674 			}
675 			zend_string_release(default_file);
676 		}
677 
678 		default_group = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_READ_DEFAULT_GROUP, NULL);
679 		if (default_group) {
680 			if (mysql_options(H->server, MYSQL_READ_DEFAULT_GROUP, (const char *)ZSTR_VAL(default_group))) {
681 				zend_string_release(default_group);
682 				pdo_mysql_error(dbh);
683 				goto cleanup;
684 			}
685 			zend_string_release(default_group);
686 		}
687 #endif
688 		compress = pdo_attr_lval(driver_options, PDO_MYSQL_ATTR_COMPRESS, 0);
689 		if (compress) {
690 			if (mysql_options(H->server, MYSQL_OPT_COMPRESS, 0)) {
691 				pdo_mysql_error(dbh);
692 				goto cleanup;
693 			}
694 		}
695 
696 		ssl_key = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_KEY, NULL);
697 		ssl_cert = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CERT, NULL);
698 		ssl_ca = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CA, NULL);
699 		ssl_capath = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CAPATH, NULL);
700 		ssl_cipher = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SSL_CIPHER, NULL);
701 
702 		if (ssl_key || ssl_cert || ssl_ca || ssl_capath || ssl_cipher) {
703 			mysql_ssl_set(H->server,
704 					ssl_key? ZSTR_VAL(ssl_key) : NULL,
705 					ssl_cert? ZSTR_VAL(ssl_cert) : NULL,
706 					ssl_ca? ZSTR_VAL(ssl_ca) : NULL,
707 					ssl_capath? ZSTR_VAL(ssl_capath) : NULL,
708 					ssl_cipher? ZSTR_VAL(ssl_cipher) : NULL);
709 			if (ssl_key) {
710 				zend_string_release(ssl_key);
711 			}
712 			if (ssl_cert) {
713 				zend_string_release(ssl_cert);
714 			}
715 			if (ssl_ca) {
716 				zend_string_release(ssl_ca);
717 			}
718 			if (ssl_capath) {
719 				zend_string_release(ssl_capath);
720 			}
721 			if (ssl_cipher) {
722 				zend_string_release(ssl_cipher);
723 			}
724 		}
725 
726 #if MYSQL_VERSION_ID > 50605 || defined(PDO_USE_MYSQLND)
727 		{
728 			zend_string *public_key = pdo_attr_strval(driver_options, PDO_MYSQL_ATTR_SERVER_PUBLIC_KEY, NULL);
729 			if (public_key) {
730 				if (mysql_options(H->server, MYSQL_SERVER_PUBLIC_KEY, ZSTR_VAL(public_key))) {
731 					pdo_mysql_error(dbh);
732 					zend_string_release(public_key);
733 					goto cleanup;
734 				}
735 				zend_string_release(public_key);
736 			}
737 		}
738 #endif
739 
740 #ifdef PDO_USE_MYSQLND
741 		{
742 			zend_long ssl_verify_cert = pdo_attr_lval(driver_options,
743 					PDO_MYSQL_ATTR_SSL_VERIFY_SERVER_CERT, -1);
744 			if (ssl_verify_cert != -1) {
745 				connect_opts |= ssl_verify_cert ?
746 					CLIENT_SSL_VERIFY_SERVER_CERT:
747 					CLIENT_SSL_DONT_VERIFY_SERVER_CERT;
748 			}
749 		}
750 #endif
751 	}
752 
753 #ifdef PDO_MYSQL_HAS_CHARSET
754 	if (vars[0].optval && mysql_options(H->server, MYSQL_SET_CHARSET_NAME, vars[0].optval)) {
755 		pdo_mysql_error(dbh);
756 		goto cleanup;
757 	}
758 #endif
759 
760 	dbname = vars[1].optval;
761 	host = vars[2].optval;
762 	if(vars[3].optval) {
763 		port = atoi(vars[3].optval);
764 	}
765 
766 #ifdef PHP_WIN32
767 	if (vars[2].optval && !strcmp(".", vars[2].optval)) {
768 #else
769 	if (vars[2].optval && !strcmp("localhost", vars[2].optval)) {
770 #endif
771 		unix_socket = vars[4].optval;
772 	}
773 
774 	/* TODO: - Check zval cache + ZTS */
775 #ifdef PDO_USE_MYSQLND
776 	if (dbname) {
777 		dbname_len = strlen(dbname);
778 	}
779 
780 	if (dbh->password) {
781 		password_len = strlen(dbh->password);
782 	}
783 
784 	if (mysqlnd_connect(H->server, host, dbh->username, dbh->password, password_len, dbname, dbname_len,
785 						port, unix_socket, connect_opts, MYSQLND_CLIENT_NO_FLAG) == NULL) {
786 #else
787 	if (mysql_real_connect(H->server, host, dbh->username, dbh->password, dbname, port, unix_socket, connect_opts) == NULL) {
788 #endif
789 		pdo_mysql_error(dbh);
790 		goto cleanup;
791 	}
792 
793 	if (!dbh->auto_commit) {
794 		mysql_handle_autocommit(dbh);
795 	}
796 
797 	H->attached = 1;
798 
799 	dbh->alloc_own_columns = 1;
800 	dbh->max_escaped_char_length = 2;
801 	dbh->methods = &mysql_methods;
802 
803 	ret = 1;
804 
805 cleanup:
806 	for (i = 0; i < sizeof(vars)/sizeof(vars[0]); i++) {
807 		if (vars[i].freeme) {
808 			efree(vars[i].optval);
809 		}
810 	}
811 
812 	dbh->methods = &mysql_methods;
813 
814 	PDO_DBG_RETURN(ret);
815 }
816 /* }}} */
817 
818 pdo_driver_t pdo_mysql_driver = {
819 	PDO_DRIVER_HEADER(mysql),
820 	pdo_mysql_handle_factory
821 };
822 
823 /*
824  * Local variables:
825  * tab-width: 4
826  * c-basic-offset: 4
827  * End:
828  * vim600: noet sw=4 ts=4 fdm=marker
829  * vim<600: noet sw=4 ts=4
830  */
831