xref: /PHP-5.3/ext/pdo_oci/oci_driver.c (revision a2045ff3)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 5                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2013 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: Wez Furlong <wez@php.net>                                    |
16   +----------------------------------------------------------------------+
17 */
18 
19 /* $Id$ */
20 
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24 
25 #include "php.h"
26 #include "php_ini.h"
27 #include "ext/standard/info.h"
28 #include "pdo/php_pdo.h"
29 #include "pdo/php_pdo_driver.h"
30 #include "php_pdo_oci.h"
31 #include "php_pdo_oci_int.h"
32 #include "Zend/zend_exceptions.h"
33 
34 static inline ub4 pdo_oci_sanitize_prefetch(long prefetch);
35 
pdo_oci_fetch_error_func(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info TSRMLS_DC)36 static int pdo_oci_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC) /* {{{ */
37 {
38 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
39 	pdo_oci_error_info *einfo;
40 
41 	einfo = &H->einfo;
42 
43 	if (stmt) {
44 		pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
45 
46 		if (S->einfo.errmsg) {
47 			einfo = &S->einfo;
48 		}
49 	}
50 
51 	if (einfo->errcode) {
52 		add_next_index_long(info, einfo->errcode);
53 		add_next_index_string(info, einfo->errmsg, 1);
54 	}
55 
56 	return 1;
57 }
58 /* }}} */
59 
_oci_error(OCIError * err,pdo_dbh_t * dbh,pdo_stmt_t * stmt,char * what,sword status,int isinit,const char * file,int line TSRMLS_DC)60 ub4 _oci_error(OCIError *err, pdo_dbh_t *dbh, pdo_stmt_t *stmt, char *what, sword status, int isinit, const char *file, int line TSRMLS_DC) /* {{{ */
61 {
62 	text errbuf[1024] = "<<Unknown>>";
63 	char tmp_buf[2048];
64 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
65 	pdo_oci_error_info *einfo;
66 	pdo_oci_stmt *S = NULL;
67 	pdo_error_type *pdo_err = &dbh->error_code;
68 
69 	if (stmt) {
70 		S = (pdo_oci_stmt*)stmt->driver_data;
71 		einfo = &S->einfo;
72 		pdo_err = &stmt->error_code;
73 	}
74 	else {
75 		einfo = &H->einfo;
76 	}
77 
78 	if (einfo->errmsg) {
79 		pefree(einfo->errmsg, dbh->is_persistent);
80 	}
81 
82 	einfo->errmsg = NULL;
83 	einfo->errcode = 0;
84 	einfo->file = file;
85 	einfo->line = line;
86 
87 	if (isinit) { /* Initialization error */
88 		strcpy(*pdo_err, "HY000");
89 		slprintf(tmp_buf, sizeof(tmp_buf), "%s (%s:%d)", what, file, line);
90 		einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
91 	}
92 	else {
93 		switch (status) {
94 			case OCI_SUCCESS:
95 				strcpy(*pdo_err, "00000");
96 				break;
97 			case OCI_ERROR:
98 				OCIErrorGet(err, (ub4)1, NULL, &einfo->errcode, errbuf, (ub4)sizeof(errbuf), OCI_HTYPE_ERROR);
99 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: %s (%s:%d)", what, errbuf, file, line);
100 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
101 				break;
102 			case OCI_SUCCESS_WITH_INFO:
103 				OCIErrorGet(err, (ub4)1, NULL, &einfo->errcode, errbuf, (ub4)sizeof(errbuf), OCI_HTYPE_ERROR);
104 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_SUCCESS_WITH_INFO: %s (%s:%d)", what, errbuf, file, line);
105 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
106 				break;
107 			case OCI_NEED_DATA:
108 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_NEED_DATA (%s:%d)", what, file, line);
109 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
110 				break;
111 			case OCI_NO_DATA:
112 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_NO_DATA (%s:%d)", what, file, line);
113 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
114 				break;
115 			case OCI_INVALID_HANDLE:
116 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_INVALID_HANDLE (%s:%d)", what, file, line);
117 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
118 				break;
119 			case OCI_STILL_EXECUTING:
120 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_STILL_EXECUTING (%s:%d)", what, file, line);
121 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
122 				break;
123 			case OCI_CONTINUE:
124 				slprintf(tmp_buf, sizeof(tmp_buf), "%s: OCI_CONTINUE (%s:%d)", what, file, line);
125 				einfo->errmsg = pestrdup(tmp_buf, dbh->is_persistent);
126 				break;
127 		}
128 
129 		if (einfo->errcode) {
130 			switch (einfo->errcode) {
131 				case 1013:	/* user requested cancel of current operation */
132 					zend_bailout();
133 					break;
134 
135 #if 0
136 				case 955:	/* ORA-00955: name is already used by an existing object */
137 					*pdo_err = PDO_ERR_ALREADY_EXISTS;
138 					break;
139 #endif
140 
141 				case 12154:	/* ORA-12154: TNS:could not resolve service name */
142 					strcpy(*pdo_err, "42S02");
143 					break;
144 
145 				case	22:	/* ORA-00022: invalid session id */
146 				case   378:
147 				case   602:
148 				case   603:
149 				case   604:
150 				case   609:
151 				case  1012:	/* ORA-01012: */
152 				case  1033:
153 				case  1041:
154 				case  1043:
155 				case  1089:
156 				case  1090:
157 				case  1092:
158 				case  3113:	/* ORA-03133: end of file on communication channel */
159 				case  3114:
160 				case  3122:
161 				case  3135:
162 				case 12153:
163 				case 27146:
164 				case 28511:
165 					/* consider the connection closed */
166 					dbh->is_closed = 1;
167 					H->attached = 0;
168 					strcpy(*pdo_err, "01002"); /* FIXME */
169 					break;
170 
171 				default:
172 					strcpy(*pdo_err, "HY000");
173 			}
174 		}
175 
176 		if (stmt) {
177 			/* always propogate the error code back up to the dbh,
178 			 * so that we can catch the error information when execute
179 			 * is called via query.  See Bug #33707 */
180 			if (H->einfo.errmsg) {
181 				pefree(H->einfo.errmsg, dbh->is_persistent);
182 			}
183 			H->einfo = *einfo;
184 			H->einfo.errmsg = einfo->errmsg ? pestrdup(einfo->errmsg, dbh->is_persistent) : NULL;
185 			strcpy(dbh->error_code, stmt->error_code);
186 		}
187 	}
188 
189 	/* little mini hack so that we can use this code from the dbh ctor */
190 	if (!dbh->methods) {
191 		zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode TSRMLS_CC, "SQLSTATE[%s]: %s", *pdo_err, einfo->errmsg);
192 	}
193 
194 	return einfo->errcode;
195 }
196 /* }}} */
197 
oci_handle_closer(pdo_dbh_t * dbh TSRMLS_DC)198 static int oci_handle_closer(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
199 {
200 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
201 
202 	if (H->svc) {
203 		/* rollback any outstanding work */
204 		OCITransRollback(H->svc, H->err, 0);
205 	}
206 
207 	if (H->session) {
208 		OCIHandleFree(H->session, OCI_HTYPE_SESSION);
209 		H->session = NULL;
210 	}
211 
212 	if (H->svc) {
213 		OCIHandleFree(H->svc, OCI_HTYPE_SVCCTX);
214 		H->svc = NULL;
215 	}
216 
217 	if (H->server && H->attached) {
218 		H->last_err = OCIServerDetach(H->server, H->err, OCI_DEFAULT);
219 		if (H->last_err) {
220 			oci_drv_error("OCIServerDetach");
221 		}
222 		H->attached = 0;
223 	}
224 
225 	if (H->server) {
226 		OCIHandleFree(H->server, OCI_HTYPE_SERVER);
227 		H->server = NULL;
228 	}
229 
230 	OCIHandleFree(H->err, OCI_HTYPE_ERROR);
231 	H->err = NULL;
232 
233 	if (H->charset && H->env) {
234 		OCIHandleFree(H->env, OCI_HTYPE_ENV);
235 		H->env = NULL;
236 	}
237 
238 	if (H->einfo.errmsg) {
239 		pefree(H->einfo.errmsg, dbh->is_persistent);
240 		H->einfo.errmsg = NULL;
241 	}
242 
243 	pefree(H, dbh->is_persistent);
244 
245 	return 0;
246 }
247 /* }}} */
248 
oci_handle_preparer(pdo_dbh_t * dbh,const char * sql,long sql_len,pdo_stmt_t * stmt,zval * driver_options TSRMLS_DC)249 static int oci_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC) /* {{{ */
250 {
251 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
252 	pdo_oci_stmt *S = ecalloc(1, sizeof(*S));
253 	ub4 prefetch;
254 	char *nsql = NULL;
255 	int nsql_len = 0;
256 	int ret;
257 
258 #if HAVE_OCISTMTFETCH2
259 	S->exec_type = pdo_attr_lval(driver_options, PDO_ATTR_CURSOR,
260 		PDO_CURSOR_FWDONLY TSRMLS_CC) == PDO_CURSOR_SCROLL ?
261 		OCI_STMT_SCROLLABLE_READONLY : OCI_DEFAULT;
262 #else
263 	S->exec_type = OCI_DEFAULT;
264 #endif
265 
266 	S->H = H;
267 	stmt->supports_placeholders = PDO_PLACEHOLDER_NAMED;
268 	ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len TSRMLS_CC);
269 
270 	if (ret == 1) {
271 		/* query was re-written */
272 		sql = nsql;
273 		sql_len = nsql_len;
274 	} else if (ret == -1) {
275 		/* couldn't grok it */
276 		strcpy(dbh->error_code, stmt->error_code);
277 		efree(S);
278 		return 0;
279 	}
280 
281 	/* create an OCI statement handle */
282 	OCIHandleAlloc(H->env, (dvoid*)&S->stmt, OCI_HTYPE_STMT, 0, NULL);
283 
284 	/* and our own private error handle */
285 	OCIHandleAlloc(H->env, (dvoid*)&S->err, OCI_HTYPE_ERROR, 0, NULL);
286 
287 	if (sql_len) {
288 		H->last_err = OCIStmtPrepare(S->stmt, H->err, (text*)sql, sql_len, OCI_NTV_SYNTAX, OCI_DEFAULT);
289 		if (nsql) {
290 			efree(nsql);
291 			nsql = NULL;
292 		}
293 		if (H->last_err) {
294 			H->last_err = oci_drv_error("OCIStmtPrepare");
295 			OCIHandleFree(S->stmt, OCI_HTYPE_STMT);
296 			OCIHandleFree(S->err, OCI_HTYPE_ERROR);
297 			efree(S);
298 			return 0;
299 		}
300 
301 	}
302 
303 	prefetch = pdo_oci_sanitize_prefetch(pdo_attr_lval(driver_options, PDO_ATTR_PREFETCH, PDO_OCI_PREFETCH_DEFAULT TSRMLS_CC));
304 	if (prefetch) {
305 		H->last_err = OCIAttrSet(S->stmt, OCI_HTYPE_STMT, &prefetch, 0,
306 			OCI_ATTR_PREFETCH_ROWS, H->err);
307 		if (!H->last_err) {
308 			prefetch *= PDO_OCI_PREFETCH_ROWSIZE;
309 			H->last_err = OCIAttrSet(S->stmt, OCI_HTYPE_STMT, &prefetch, 0,
310 				OCI_ATTR_PREFETCH_MEMORY, H->err);
311 		}
312 	}
313 
314 	stmt->driver_data = S;
315 	stmt->methods = &oci_stmt_methods;
316 	if (nsql) {
317 		efree(nsql);
318 		nsql = NULL;
319 	}
320 
321 	return 1;
322 }
323 /* }}} */
324 
oci_handle_doer(pdo_dbh_t * dbh,const char * sql,long sql_len TSRMLS_DC)325 static long oci_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC) /* {{{ */
326 {
327 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
328 	OCIStmt		*stmt;
329 	ub2 stmt_type;
330 	ub4 rowcount;
331 	int ret = -1;
332 
333 	OCIHandleAlloc(H->env, (dvoid*)&stmt, OCI_HTYPE_STMT, 0, NULL);
334 
335 	H->last_err = OCIStmtPrepare(stmt, H->err, (text*)sql, sql_len, OCI_NTV_SYNTAX, OCI_DEFAULT);
336 	if (H->last_err) {
337 		H->last_err = oci_drv_error("OCIStmtPrepare");
338 		OCIHandleFree(stmt, OCI_HTYPE_STMT);
339 		return -1;
340 	}
341 
342 	H->last_err = OCIAttrGet(stmt, OCI_HTYPE_STMT, &stmt_type, 0, OCI_ATTR_STMT_TYPE, H->err);
343 
344 	if (stmt_type == OCI_STMT_SELECT) {
345 		/* invalid usage; cancel it */
346 		OCIHandleFree(stmt, OCI_HTYPE_STMT);
347 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "issuing a SELECT query here is invalid");
348 		return -1;
349 	}
350 
351 	/* now we are good to go */
352 	H->last_err = OCIStmtExecute(H->svc, stmt, H->err, 1, 0, NULL, NULL,
353 			(dbh->auto_commit && !dbh->in_txn) ? OCI_COMMIT_ON_SUCCESS : OCI_DEFAULT);
354 
355 	if (H->last_err) {
356 		H->last_err = oci_drv_error("OCIStmtExecute");
357 	} else {
358 		/* return the number of affected rows */
359 		H->last_err = OCIAttrGet(stmt, OCI_HTYPE_STMT, &rowcount, 0, OCI_ATTR_ROW_COUNT, H->err);
360 		ret = rowcount;
361 	}
362 
363 	OCIHandleFree(stmt, OCI_HTYPE_STMT);
364 
365 	return ret;
366 }
367 /* }}} */
368 
oci_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,int unquotedlen,char ** quoted,int * quotedlen,enum pdo_param_type paramtype TSRMLS_DC)369 static int oci_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, int unquotedlen, char **quoted, int *quotedlen, enum pdo_param_type paramtype  TSRMLS_DC) /* {{{ */
370 {
371 	int qcount = 0;
372 	char const *cu, *l, *r;
373 	char *c;
374 
375 	if (!unquotedlen) {
376 		*quotedlen = 2;
377 		*quoted = emalloc(*quotedlen+1);
378 		strcpy(*quoted, "''");
379 		return 1;
380 	}
381 
382 	/* count single quotes */
383 	for (cu = unquoted; (cu = strchr(cu,'\'')); qcount++, cu++)
384 		; /* empty loop */
385 
386 	*quotedlen = unquotedlen + qcount + 2;
387 	*quoted = c = emalloc(*quotedlen+1);
388 	*c++ = '\'';
389 
390 	/* foreach (chunk that ends in a quote) */
391 	for (l = unquoted; (r = strchr(l,'\'')); l = r+1) {
392 		strncpy(c, l, r-l+1);
393 		c += (r-l+1);
394 		*c++ = '\'';			/* add second quote */
395 	}
396 
397     /* Copy remainder and add enclosing quote */
398 	strncpy(c, l, *quotedlen-(c-*quoted)-1);
399 	(*quoted)[*quotedlen-1] = '\'';
400 	(*quoted)[*quotedlen]   = '\0';
401 
402 	return 1;
403 }
404 /* }}} */
405 
oci_handle_begin(pdo_dbh_t * dbh TSRMLS_DC)406 static int oci_handle_begin(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
407 {
408 	/* with Oracle, there is nothing special to be done */
409 	return 1;
410 }
411 /* }}} */
412 
oci_handle_commit(pdo_dbh_t * dbh TSRMLS_DC)413 static int oci_handle_commit(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
414 {
415 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
416 
417 	H->last_err = OCITransCommit(H->svc, H->err, 0);
418 
419 	if (H->last_err) {
420 		H->last_err = oci_drv_error("OCITransCommit");
421 		return 0;
422 	}
423 	return 1;
424 }
425 /* }}} */
426 
oci_handle_rollback(pdo_dbh_t * dbh TSRMLS_DC)427 static int oci_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
428 {
429 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
430 
431 	H->last_err = OCITransRollback(H->svc, H->err, 0);
432 
433 	if (H->last_err) {
434 		H->last_err = oci_drv_error("OCITransRollback");
435 		return 0;
436 	}
437 	return 1;
438 }
439 /* }}} */
440 
oci_handle_set_attribute(pdo_dbh_t * dbh,long attr,zval * val TSRMLS_DC)441 static int oci_handle_set_attribute(pdo_dbh_t *dbh, long attr, zval *val TSRMLS_DC) /* {{{ */
442 {
443 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
444 
445 	if (attr == PDO_ATTR_AUTOCOMMIT) {
446 		if (dbh->in_txn) {
447 			/* Assume they want to commit whatever is outstanding */
448 			H->last_err = OCITransCommit(H->svc, H->err, 0);
449 
450 			if (H->last_err) {
451 				H->last_err = oci_drv_error("OCITransCommit");
452 				return 0;
453 			}
454 			dbh->in_txn = 0;
455 		}
456 
457 		convert_to_long(val);
458 
459 		dbh->auto_commit = Z_LVAL_P(val);
460 		return 1;
461 	} else {
462 		return 0;
463 	}
464 
465 }
466 /* }}} */
467 
oci_handle_get_attribute(pdo_dbh_t * dbh,long attr,zval * return_value TSRMLS_DC)468 static int oci_handle_get_attribute(pdo_dbh_t *dbh, long attr, zval *return_value TSRMLS_DC)  /* {{{ */
469 {
470 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
471 
472 	switch (attr) {
473 		case PDO_ATTR_SERVER_VERSION:
474 		case PDO_ATTR_SERVER_INFO:
475 		{
476 			text infostr[512];
477 			char verstr[15];
478 			ub4  vernum;
479 
480 			if (OCIServerRelease(H->svc, H->err, infostr, (ub4)sizeof(infostr), (ub1)OCI_HTYPE_SVCCTX, &vernum))
481 			{
482 				ZVAL_STRING(return_value, "<<Unknown>>", 1);
483 			} else {
484 				if (attr == PDO_ATTR_SERVER_INFO) {
485 					ZVAL_STRING(return_value, (char *)infostr, 1);
486 				} else {
487 					slprintf(verstr, sizeof(verstr), "%d.%d.%d.%d.%d",
488 							 (int)((vernum>>24) & 0xFF),  /* version number */
489 							 (int)((vernum>>20) & 0x0F),  /* release number*/
490 							 (int)((vernum>>12) & 0xFF),  /* update number */
491 							 (int)((vernum>>8)  & 0x0F),  /* port release number */
492 							 (int)((vernum>>0)  & 0xFF)); /* port update number */
493 
494 					ZVAL_STRING(return_value, verstr, 1);
495 				}
496 			}
497 			return TRUE;
498 		}
499 
500 		case PDO_ATTR_CLIENT_VERSION:
501 		{
502 #if OCI_MAJOR_VERSION > 10 || (OCI_MAJOR_VERSION == 10 && OCI_MINOR_VERSION >= 2)
503 			/* Run time client version */
504 			sword major, minor, update, patch, port_update;
505 			char verstr[15];
506 
507 			OCIClientVersion(&major, &minor, &update, &patch, &port_update);
508 			slprintf(verstr, sizeof(verstr), "%d.%d.%d.%d.%d", major, minor, update, patch, port_update);
509 			ZVAL_STRING(return_value, verstr, 1);
510 #elif defined(PHP_PDO_OCI_CLIENT_VERSION)
511 			/* Compile time client version */
512 			ZVAL_STRING(return_value, PHP_PDO_OCI_CLIENT_VERSION, 1);
513 #else
514 			return FALSE;
515 
516 #endif /* Check for OCIClientVersion() support */
517 
518 			return TRUE;
519 		}
520 
521 		case PDO_ATTR_AUTOCOMMIT:
522 			ZVAL_BOOL(return_value, dbh->auto_commit);
523 			return TRUE;
524 
525 		default:
526 			return FALSE;
527 
528 	}
529 	return FALSE;
530 
531 }
532 /* }}} */
533 
pdo_oci_check_liveness(pdo_dbh_t * dbh TSRMLS_DC)534 static int pdo_oci_check_liveness(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
535 {
536 	pdo_oci_db_handle *H = (pdo_oci_db_handle *)dbh->driver_data;
537 	sb4 error_code = 0;
538 	char version[256];
539 
540 	/* TODO move attached check to PDO level */
541 	if (H->attached == 0) {
542 		return FAILURE;
543 	}
544 	/* TODO add persistent_timeout check at PDO level */
545 
546 
547 	/* Use OCIPing instead of OCIServerVersion. If OCIPing returns ORA-1010 (invalid OCI operation)
548 	 * such as from Pre-10.1 servers, the error is still from the server and we would have
549 	 * successfully performed a roundtrip and validated the connection. Use OCIServerVersion for
550 	 * Pre-10.2 clients
551 	 */
552 #if ((OCI_MAJOR_VERSION > 10) || ((OCI_MAJOR_VERSION == 10) && (OCI_MINOR_VERSION >= 2)))	/* OCIPing available 10.2 onwards */
553 	H->last_err = OCIPing (H->svc, H->err, OCI_DEFAULT);
554 #else
555 	/* use good old OCIServerVersion() */
556 	H->last_err = OCIServerVersion (H->svc, H->err, (text *)version, sizeof(version), OCI_HTYPE_SVCCTX);
557 #endif
558 	if (H->last_err == OCI_SUCCESS) {
559 		return SUCCESS;
560 	}
561 
562 	OCIErrorGet (H->err, (ub4)1, NULL, &error_code, NULL, 0, OCI_HTYPE_ERROR);
563 
564 	if (error_code == 1010) {
565 		return SUCCESS;
566 	}
567 	return FAILURE;
568 }
569 /* }}} */
570 
571 static struct pdo_dbh_methods oci_methods = {
572 	oci_handle_closer,
573 	oci_handle_preparer,
574 	oci_handle_doer,
575 	oci_handle_quoter,
576 	oci_handle_begin,
577 	oci_handle_commit,
578 	oci_handle_rollback,
579 	oci_handle_set_attribute,
580 	NULL,
581 	pdo_oci_fetch_error_func,
582 	oci_handle_get_attribute,
583 	pdo_oci_check_liveness,	/* check_liveness */
584 	NULL	/* get_driver_methods */
585 };
586 
pdo_oci_handle_factory(pdo_dbh_t * dbh,zval * driver_options TSRMLS_DC)587 static int pdo_oci_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_DC) /* {{{ */
588 {
589 	pdo_oci_db_handle *H;
590 	int i, ret = 0;
591 	struct pdo_data_src_parser vars[] = {
592 		{ "charset",  NULL,	0 },
593 		{ "dbname",   "",	0 }
594 	};
595 
596 	php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, 2);
597 
598 	H = pecalloc(1, sizeof(*H), dbh->is_persistent);
599 	dbh->driver_data = H;
600 
601 	/* allocate an environment */
602 #if HAVE_OCIENVNLSCREATE
603 	if (vars[0].optval) {
604 		H->charset = OCINlsCharSetNameToId(pdo_oci_Env, (const oratext *)vars[0].optval);
605 		if (!H->charset) {
606 			oci_init_error("OCINlsCharSetNameToId: unknown character set name");
607 			goto cleanup;
608 		} else {
609 			if (OCIEnvNlsCreate(&H->env, PDO_OCI_INIT_MODE, 0, NULL, NULL, NULL, 0, NULL, H->charset, H->charset) != OCI_SUCCESS) {
610 				oci_init_error("OCIEnvNlsCreate: Check the character set is valid and that PHP has access to Oracle libraries and NLS data");
611 				goto cleanup;
612 			}
613 		}
614 	}
615 #endif
616 	if (H->env == NULL) {
617 		/* use the global environment */
618 		H->env = pdo_oci_Env;
619 	}
620 
621 	/* something to hold errors */
622 	OCIHandleAlloc(H->env, (dvoid **)&H->err, OCI_HTYPE_ERROR, 0, NULL);
623 
624 	/* handle for the server */
625 	OCIHandleAlloc(H->env, (dvoid **)&H->server, OCI_HTYPE_SERVER, 0, NULL);
626 
627 	H->last_err = OCIServerAttach(H->server, H->err, (text*)vars[1].optval,
628 		   	strlen(vars[1].optval), OCI_DEFAULT);
629 
630 	if (H->last_err) {
631 		oci_drv_error("pdo_oci_handle_factory");
632 		goto cleanup;
633 	}
634 
635 	H->attached = 1;
636 
637 	/* create a service context */
638 	H->last_err = OCIHandleAlloc(H->env, (dvoid**)&H->svc, OCI_HTYPE_SVCCTX, 0, NULL);
639 	if (H->last_err) {
640 		oci_drv_error("OCIHandleAlloc: OCI_HTYPE_SVCCTX");
641 		goto cleanup;
642 	}
643 
644 	H->last_err = OCIHandleAlloc(H->env, (dvoid**)&H->session, OCI_HTYPE_SESSION, 0, NULL);
645 	if (H->last_err) {
646 		oci_drv_error("OCIHandleAlloc: OCI_HTYPE_SESSION");
647 		goto cleanup;
648 	}
649 
650 	/* set server handle into service handle */
651 	H->last_err = OCIAttrSet(H->svc, OCI_HTYPE_SVCCTX, H->server, 0, OCI_ATTR_SERVER, H->err);
652 	if (H->last_err) {
653 		oci_drv_error("OCIAttrSet: OCI_ATTR_SERVER");
654 		goto cleanup;
655 	}
656 
657 	/* username */
658 	if (dbh->username) {
659 		H->last_err = OCIAttrSet(H->session, OCI_HTYPE_SESSION,
660 			   	dbh->username, strlen(dbh->username),
661 				OCI_ATTR_USERNAME, H->err);
662 		if (H->last_err) {
663 			oci_drv_error("OCIAttrSet: OCI_ATTR_USERNAME");
664 			goto cleanup;
665 		}
666 	}
667 
668 	/* password */
669 	if (dbh->password) {
670 		H->last_err = OCIAttrSet(H->session, OCI_HTYPE_SESSION,
671 			   	dbh->password, strlen(dbh->password),
672 				OCI_ATTR_PASSWORD, H->err);
673 		if (H->last_err) {
674 			oci_drv_error("OCIAttrSet: OCI_ATTR_PASSWORD");
675 			goto cleanup;
676 		}
677 	}
678 
679 	/* Now fire up the session */
680 	H->last_err = OCISessionBegin(H->svc, H->err, H->session, OCI_CRED_RDBMS, OCI_DEFAULT);
681 	if (H->last_err) {
682 		oci_drv_error("OCISessionBegin");
683 		goto cleanup;
684 	}
685 
686 	/* set the server handle into service handle */
687 	H->last_err = OCIAttrSet(H->svc, OCI_HTYPE_SVCCTX, H->session, 0, OCI_ATTR_SESSION, H->err);
688 	if (H->last_err) {
689 		oci_drv_error("OCIAttrSet: OCI_ATTR_SESSION");
690 		goto cleanup;
691 	}
692 
693 	dbh->methods = &oci_methods;
694 	dbh->alloc_own_columns = 1;
695 	dbh->native_case = PDO_CASE_UPPER;
696 
697 	ret = 1;
698 
699 cleanup:
700 	for (i = 0; i < sizeof(vars)/sizeof(vars[0]); i++) {
701 		if (vars[i].freeme) {
702 			efree(vars[i].optval);
703 		}
704 	}
705 
706 	if (!ret) {
707 		oci_handle_closer(dbh TSRMLS_CC);
708 	}
709 
710 	return ret;
711 }
712 /* }}} */
713 
714 pdo_driver_t pdo_oci_driver = {
715 	PDO_DRIVER_HEADER(oci),
716 	pdo_oci_handle_factory
717 };
718 
pdo_oci_sanitize_prefetch(long prefetch)719 static inline ub4 pdo_oci_sanitize_prefetch(long prefetch) /* {{{ */
720 {
721 	if (prefetch < 0) {
722 		prefetch = 0;
723 	} else if (prefetch > UB4MAXVAL / PDO_OCI_PREFETCH_ROWSIZE) {
724 		prefetch = PDO_OCI_PREFETCH_DEFAULT;
725 	}
726 	return ((ub4)prefetch);
727 }
728 /* }}} */
729 
730 
731 /*
732  * Local variables:
733  * tab-width: 4
734  * c-basic-offset: 4
735  * End:
736  * vim600: noet sw=4 ts=4 fdm=marker
737  * vim<600: noet sw=4 ts=4
738  */
739