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: George Schlossnagle <george@omniti.com> |
16: | Wez Furlong <wez@php.net> |
17: | Johannes Schlueter <johannes@mysql.com> |
18: +----------------------------------------------------------------------+
19: */
20:
21: /* $Id: mysql_statement.c,v 1.1.1.3 2013/07/22 01:31:58 misho Exp $ */
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:
35: #ifdef PDO_USE_MYSQLND
36: # define pdo_mysql_stmt_execute_prepared(stmt) pdo_mysql_stmt_execute_prepared_mysqlnd(stmt TSRMLS_CC)
37: # define pdo_free_bound_result(res) zval_dtor(res.zv)
38: # define pdo_mysql_stmt_close(stmt) mysqlnd_stmt_close(stmt, 0)
39: #else
40: # define pdo_mysql_stmt_execute_prepared(stmt) pdo_mysql_stmt_execute_prepared_libmysql(stmt TSRMLS_CC)
41: # define pdo_free_bound_result(res) efree(res.buffer)
42: # define pdo_mysql_stmt_close(stmt) mysql_stmt_close(stmt)
43: #endif
44:
45:
46:
47: static int pdo_mysql_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
48: {
49: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
50:
51: PDO_DBG_ENTER("pdo_mysql_stmt_dtor");
52: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
53: if (S->result) {
54: /* free the resource */
55: mysql_free_result(S->result);
56: S->result = NULL;
57: }
58: if (S->einfo.errmsg) {
59: pefree(S->einfo.errmsg, stmt->dbh->is_persistent);
60: S->einfo.errmsg = NULL;
61: }
62: if (S->stmt) {
63: pdo_mysql_stmt_close(S->stmt);
64: S->stmt = NULL;
65: }
66:
67: #ifndef PDO_USE_MYSQLND
68: if (S->params) {
69: efree(S->params);
70: }
71: if (S->in_null) {
72: efree(S->in_null);
73: }
74: if (S->in_length) {
75: efree(S->in_length);
76: }
77:
78: if (S->bound_result)
79: {
80: int i;
81: for (i = 0; i < stmt->column_count; i++) {
82: pdo_free_bound_result(S->bound_result[i]);
83: }
84:
85: efree(S->bound_result);
86: efree(S->out_null);
87: efree(S->out_length);
88: }
89: #endif
90:
91:
92: if (S->H->server) {
93: while (mysql_more_results(S->H->server)) {
94: MYSQL_RES *res;
95: if (mysql_next_result(S->H->server) != 0) {
96: break;
97: }
98:
99: res = mysql_store_result(S->H->server);
100: if (res) {
101: mysql_free_result(res);
102: }
103: }
104: }
105:
106: #if PDO_USE_MYSQLND
107: if (!S->stmt && S->current_data) {
108: mnd_free(S->current_data);
109: }
110: #endif /* PDO_USE_MYSQLND */
111:
112: efree(S);
113: PDO_DBG_RETURN(1);
114: }
115: /* }}} */
116:
117: static void pdo_mysql_stmt_set_row_count(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
118: {
119: long row_count;
120: pdo_mysql_stmt *S = stmt->driver_data;
121: row_count = (long) mysql_stmt_affected_rows(S->stmt);
122: if (row_count != (long)-1) {
123: stmt->row_count = row_count;
124: }
125: }
126: /* }}} */
127:
128: static int pdo_mysql_fill_stmt_from_result(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
129: {
130: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
131: pdo_mysql_db_handle *H = S->H;
132: my_ulonglong row_count;
133: PDO_DBG_ENTER("pdo_mysql_fill_stmt_from_result");
134:
135: row_count = mysql_affected_rows(H->server);
136: if (row_count == (my_ulonglong)-1) {
137: /* we either have a query that returned a result set or an error occurred
138: lets see if we have access to a result set */
139: if (!H->buffered) {
140: S->result = mysql_use_result(H->server);
141: } else {
142: S->result = mysql_store_result(H->server);
143: }
144: if (NULL == S->result) {
145: pdo_mysql_error_stmt(stmt);
146: PDO_DBG_RETURN(0);
147: }
148:
149: stmt->row_count = (long) mysql_num_rows(S->result);
150: stmt->column_count = (int) mysql_num_fields(S->result);
151: S->fields = mysql_fetch_fields(S->result);
152: } else {
153: /* this was a DML or DDL query (INSERT, UPDATE, DELETE, ... */
154: stmt->row_count = (long) row_count;
155: }
156:
157: PDO_DBG_RETURN(1);
158: }
159: /* }}} */
160:
161: #ifndef PDO_USE_MYSQLND
162: static int pdo_mysql_stmt_execute_prepared_libmysql(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
163: {
164: pdo_mysql_stmt *S = stmt->driver_data;
165: pdo_mysql_db_handle *H = S->H;
166:
167: PDO_DBG_ENTER("pdo_mysql_stmt_execute_prepared_libmysql");
168:
169: /* (re)bind the parameters */
170: if (mysql_stmt_bind_param(S->stmt, S->params) || mysql_stmt_execute(S->stmt)) {
171: if (S->params) {
172: memset(S->params, 0, S->num_params * sizeof(MYSQL_BIND));
173: }
174: pdo_mysql_error_stmt(stmt);
175: if (mysql_stmt_errno(S->stmt) == 2057) {
176: /* CR_NEW_STMT_METADATA makes the statement unusable */
177: S->stmt = NULL;
178: }
179: PDO_DBG_RETURN(0);
180: }
181:
182: if (!S->result) {
183: int i;
184:
185: /* figure out the result set format, if any */
186: S->result = mysql_stmt_result_metadata(S->stmt);
187: if (S->result) {
188: int calc_max_length = H->buffered && S->max_length == 1;
189: S->fields = mysql_fetch_fields(S->result);
190: if (S->bound_result) {
191: int i;
192: for (i = 0; i < stmt->column_count; i++) {
193: efree(S->bound_result[i].buffer);
194: }
195: efree(S->bound_result);
196: efree(S->out_null);
197: efree(S->out_length);
198: }
199:
200: stmt->column_count = (int)mysql_num_fields(S->result);
201: S->bound_result = ecalloc(stmt->column_count, sizeof(MYSQL_BIND));
202: S->out_null = ecalloc(stmt->column_count, sizeof(my_bool));
203: S->out_length = ecalloc(stmt->column_count, sizeof(unsigned long));
204:
205: /* summon memory to hold the row */
206: for (i = 0; i < stmt->column_count; i++) {
207: if (calc_max_length && S->fields[i].type == FIELD_TYPE_BLOB) {
208: my_bool on = 1;
209: mysql_stmt_attr_set(S->stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &on);
210: calc_max_length = 0;
211: }
212: switch (S->fields[i].type) {
213: case FIELD_TYPE_INT24:
214: S->bound_result[i].buffer_length = MAX_MEDIUMINT_WIDTH + 1;
215: break;
216: case FIELD_TYPE_LONG:
217: S->bound_result[i].buffer_length = MAX_INT_WIDTH + 1;
218: break;
219: case FIELD_TYPE_LONGLONG:
220: S->bound_result[i].buffer_length = MAX_BIGINT_WIDTH + 1;
221: break;
222: case FIELD_TYPE_TINY:
223: S->bound_result[i].buffer_length = MAX_TINYINT_WIDTH + 1;
224: break;
225: case FIELD_TYPE_SHORT:
226: S->bound_result[i].buffer_length = MAX_SMALLINT_WIDTH + 1;
227: break;
228: default:
229: S->bound_result[i].buffer_length =
230: S->fields[i].max_length? S->fields[i].max_length:
231: S->fields[i].length;
232: /* work-around for longtext and alike */
233: if (S->bound_result[i].buffer_length > H->max_buffer_size) {
234: S->bound_result[i].buffer_length = H->max_buffer_size;
235: }
236: }
237:
238: /* there are cases where the length reported by mysql is too short.
239: * eg: when describing a table that contains an enum column. Since
240: * we have no way of knowing the true length either, we'll bump up
241: * our buffer size to a reasonable size, just in case */
242: if (S->fields[i].max_length == 0 && S->bound_result[i].buffer_length < 128 && MYSQL_TYPE_VAR_STRING) {
243: S->bound_result[i].buffer_length = 128;
244: }
245:
246: S->out_length[i] = 0;
247:
248: S->bound_result[i].buffer = emalloc(S->bound_result[i].buffer_length);
249: S->bound_result[i].is_null = &S->out_null[i];
250: S->bound_result[i].length = &S->out_length[i];
251: S->bound_result[i].buffer_type = MYSQL_TYPE_STRING;
252: }
253:
254: if (mysql_stmt_bind_result(S->stmt, S->bound_result)) {
255: pdo_mysql_error_stmt(stmt);
256: PDO_DBG_RETURN(0);
257: }
258:
259: /* if buffered, pre-fetch all the data */
260: if (H->buffered) {
261: mysql_stmt_store_result(S->stmt);
262: }
263: }
264: }
265:
266: pdo_mysql_stmt_set_row_count(stmt TSRMLS_CC);
267: PDO_DBG_RETURN(1);
268: }
269: /* }}} */
270: #endif
271:
272: #ifdef PDO_USE_MYSQLND
273: static int pdo_mysql_stmt_execute_prepared_mysqlnd(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
274: {
275: pdo_mysql_stmt *S = stmt->driver_data;
276: pdo_mysql_db_handle *H = S->H;
277: int i;
278:
279: PDO_DBG_ENTER("pdo_mysql_stmt_execute_prepared_mysqlnd");
280:
281: if (mysql_stmt_execute(S->stmt)) {
282: pdo_mysql_error_stmt(stmt);
283: PDO_DBG_RETURN(0);
284: }
285:
286: if (S->result) {
287: /* TODO: add a test to check if we really have zvals here... */
288: mysql_free_result(S->result);
289: S->result = NULL;
290: }
291:
292: /* for SHOW/DESCRIBE and others the column/field count is not available before execute */
293: stmt->column_count = mysql_stmt_field_count(S->stmt);
294: for (i = 0; i < stmt->column_count; i++) {
295: mysqlnd_stmt_bind_one_result(S->stmt, i);
296: }
297:
298: S->result = mysqlnd_stmt_result_metadata(S->stmt);
299: if (S->result) {
300: S->fields = mysql_fetch_fields(S->result);
301: /* if buffered, pre-fetch all the data */
302: if (H->buffered) {
303: if (mysql_stmt_store_result(S->stmt)) {
304: PDO_DBG_RETURN(0);
305: }
306: }
307: }
308:
309: pdo_mysql_stmt_set_row_count(stmt TSRMLS_CC);
310: PDO_DBG_RETURN(1);
311: }
312: /* }}} */
313: #endif
314:
315: static int pdo_mysql_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
316: {
317: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
318: pdo_mysql_db_handle *H = S->H;
319: PDO_DBG_ENTER("pdo_mysql_stmt_execute");
320: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
321:
322: if (S->stmt) {
323: PDO_DBG_RETURN(pdo_mysql_stmt_execute_prepared(stmt));
324: }
325:
326: /* ensure that we free any previous unfetched results */
327: if (S->result) {
328: mysql_free_result(S->result);
329: S->result = NULL;
330: }
331:
332: if (mysql_real_query(H->server, stmt->active_query_string, stmt->active_query_stringlen) != 0) {
333: pdo_mysql_error_stmt(stmt);
334: PDO_DBG_RETURN(0);
335: }
336:
337: PDO_DBG_RETURN(pdo_mysql_fill_stmt_from_result(stmt TSRMLS_CC));
338: }
339: /* }}} */
340:
341: static int pdo_mysql_stmt_next_rowset(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
342: {
343: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
344: pdo_mysql_db_handle *H = S->H;
345: long row_count;
346: PDO_DBG_ENTER("pdo_mysql_stmt_next_rowset");
347: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
348:
349: #if PDO_USE_MYSQLND
350: if (!H->emulate_prepare) {
351: if (!mysqlnd_stmt_more_results(S->stmt)) {
352: PDO_DBG_RETURN(0);
353: }
354: if (mysqlnd_stmt_next_result(S->stmt)) {
355: PDO_DBG_RETURN(0);
356: }
357:
358: if (!mysqlnd_stmt_more_results(S->stmt)) {
359: /*
360: MySQL gives us n + 1 result sets for
361: CALL proc() and n result sets returned by the proc itself.
362: Result set n + 1 is about the procedure call itself.
363: As the PDO emulation does not return it, we skip it as well
364: */
365: PDO_DBG_RETURN(0);
366: }
367:
368: /* TODO - this code is stolen from execute() - see above */
369: if (S->result) {
370: mysql_free_result(S->result);
371: S->result = NULL;
372: }
373: {
374: /* for SHOW/DESCRIBE and others the column/field count is not available before execute */
375: int i;
376:
377: stmt->column_count = mysql_stmt_field_count(S->stmt);
378: for (i = 0; i < stmt->column_count; i++) {
379: mysqlnd_stmt_bind_one_result(S->stmt, i);
380: }
381: }
382:
383: S->result = mysqlnd_stmt_result_metadata(S->stmt);
384: if (S->result) {
385: S->fields = mysql_fetch_fields(S->result);
386:
387: /* if buffered, pre-fetch all the data */
388: if (H->buffered) {
389: if (mysql_stmt_store_result(S->stmt)) {
390: PDO_DBG_RETURN(1);
391: }
392: }
393: }
394: row_count = (long) mysql_stmt_affected_rows(S->stmt);
395: if (row_count != (long)-1) {
396: stmt->row_count = row_count;
397: }
398: PDO_DBG_RETURN(1);
399: }
400: #endif
401:
402: /* ensure that we free any previous unfetched results */
403: #ifndef PDO_USE_MYSQLND
404: if (S->stmt) {
405: stmt->column_count = (int)mysql_num_fields(S->result);
406: mysql_stmt_free_result(S->stmt);
407: }
408: #endif
409: if (S->result) {
410: mysql_free_result(S->result);
411: S->result = NULL;
412: }
413:
414: if (!mysql_more_results(H->server)) {
415: /* No more results */
416: PDO_DBG_RETURN(0);
417: }
418: #if PDO_USE_MYSQLND
419: if (mysql_next_result(H->server) == FAIL) {
420: pdo_mysql_error_stmt(stmt);
421: PDO_DBG_RETURN(0);
422: } else {
423: PDO_DBG_RETURN(pdo_mysql_fill_stmt_from_result(stmt TSRMLS_CC));
424: }
425: #else
426: if (mysql_next_result(H->server) > 0) {
427: pdo_mysql_error_stmt(stmt);
428: PDO_DBG_RETURN(0);
429: } else {
430: PDO_DBG_RETURN(pdo_mysql_fill_stmt_from_result(stmt TSRMLS_CC));
431: }
432: #endif
433: }
434: /* }}} */
435:
436:
437: static const char * const pdo_param_event_names[] =
438: {
439: "PDO_PARAM_EVT_ALLOC",
440: "PDO_PARAM_EVT_FREE",
441: "PDO_PARAM_EVT_EXEC_PRE",
442: "PDO_PARAM_EVT_EXEC_POST",
443: "PDO_PARAM_EVT_FETCH_PRE",
444: "PDO_PARAM_EVT_FETCH_POST",
445: "PDO_PARAM_EVT_NORMALIZE",
446: };
447:
448:
449: static int pdo_mysql_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param, enum pdo_param_event event_type TSRMLS_DC) /* {{{ */
450: {
451: #ifndef PDO_USE_MYSQLND
452: PDO_MYSQL_PARAM_BIND *b;
453: #endif
454: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
455:
456: PDO_DBG_ENTER("pdo_mysql_stmt_param_hook");
457: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
458: PDO_DBG_INF_FMT("event = %s", pdo_param_event_names[event_type]);
459: if (S->stmt && param->is_param) {
460: switch (event_type) {
461: case PDO_PARAM_EVT_ALLOC:
462: /* sanity check parameter number range */
463: if (param->paramno < 0 || param->paramno >= S->num_params) {
464: strcpy(stmt->error_code, "HY093");
465: PDO_DBG_RETURN(0);
466: }
467: S->params_given++;
468:
469: #ifndef PDO_USE_MYSQLND
470: b = &S->params[param->paramno];
471: param->driver_data = b;
472: b->is_null = &S->in_null[param->paramno];
473: b->length = &S->in_length[param->paramno];
474: /* recall how many parameters have been provided */
475: #endif
476: PDO_DBG_RETURN(1);
477:
478: case PDO_PARAM_EVT_EXEC_PRE:
479: if (S->params_given < (unsigned int) S->num_params) {
480: /* too few parameter bound */
481: PDO_DBG_ERR("too few parameters bound");
482: strcpy(stmt->error_code, "HY093");
483: PDO_DBG_RETURN(0);
484: }
485:
486: #if PDO_USE_MYSQLND
487: if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_NULL ||
488: Z_TYPE_P(param->parameter) == IS_NULL) {
489: mysqlnd_stmt_bind_one_param(S->stmt, param->paramno, param->parameter, MYSQL_TYPE_NULL);
490: PDO_DBG_RETURN(1);
491: }
492: #else
493: b = (PDO_MYSQL_PARAM_BIND*)param->driver_data;
494: *b->is_null = 0;
495: if (PDO_PARAM_TYPE(param->param_type) == PDO_PARAM_NULL ||
496: Z_TYPE_P(param->parameter) == IS_NULL) {
497: *b->is_null = 1;
498: b->buffer_type = MYSQL_TYPE_STRING;
499: b->buffer = NULL;
500: b->buffer_length = 0;
501: *b->length = 0;
502: PDO_DBG_RETURN(1);
503: }
504: #endif /* PDO_USE_MYSQLND */
505:
506: switch (PDO_PARAM_TYPE(param->param_type)) {
507: case PDO_PARAM_STMT:
508: PDO_DBG_RETURN(0);
509: case PDO_PARAM_LOB:
510: PDO_DBG_INF("PDO_PARAM_LOB");
511: if (Z_TYPE_P(param->parameter) == IS_RESOURCE) {
512: php_stream *stm;
513: php_stream_from_zval_no_verify(stm, ¶m->parameter);
514: if (stm) {
515: SEPARATE_ZVAL_IF_NOT_REF(¶m->parameter);
516: Z_TYPE_P(param->parameter) = IS_STRING;
517: Z_STRLEN_P(param->parameter) = php_stream_copy_to_mem(stm,
518: &Z_STRVAL_P(param->parameter), PHP_STREAM_COPY_ALL, 0);
519: } else {
520: pdo_raise_impl_error(stmt->dbh, stmt, "HY105", "Expected a stream resource" TSRMLS_CC);
521: return 0;
522: }
523: }
524: /* fall through */
525:
526: default:
527: ;
528: }
529:
530: #if PDO_USE_MYSQLND
531: /* Is it really correct to check the zval's type? - But well, that's what the old code below does, too */
532: PDO_DBG_INF_FMT("param->parameter->type=%d", Z_TYPE_P(param->parameter));
533: switch (Z_TYPE_P(param->parameter)) {
534: case IS_STRING:
535: mysqlnd_stmt_bind_one_param(S->stmt, param->paramno, param->parameter, MYSQL_TYPE_VAR_STRING);
536: break;
537: case IS_LONG:
538: #if SIZEOF_LONG==8
539: mysqlnd_stmt_bind_one_param(S->stmt, param->paramno, param->parameter, MYSQL_TYPE_LONGLONG);
540: #elif SIZEOF_LONG==4
541: mysqlnd_stmt_bind_one_param(S->stmt, param->paramno, param->parameter, MYSQL_TYPE_LONG);
542: #endif /* SIZEOF_LONG */
543: break;
544: case IS_DOUBLE:
545: mysqlnd_stmt_bind_one_param(S->stmt, param->paramno, param->parameter, MYSQL_TYPE_DOUBLE);
546: break;
547: default:
548: PDO_DBG_RETURN(0);
549: }
550:
551: PDO_DBG_RETURN(1);
552: #else
553: PDO_DBG_INF_FMT("param->parameter->type=%d", Z_TYPE_P(param->parameter));
554: switch (Z_TYPE_P(param->parameter)) {
555: case IS_STRING:
556: b->buffer_type = MYSQL_TYPE_STRING;
557: b->buffer = Z_STRVAL_P(param->parameter);
558: b->buffer_length = Z_STRLEN_P(param->parameter);
559: *b->length = Z_STRLEN_P(param->parameter);
560: PDO_DBG_RETURN(1);
561:
562: case IS_LONG:
563: b->buffer_type = MYSQL_TYPE_LONG;
564: b->buffer = &Z_LVAL_P(param->parameter);
565: PDO_DBG_RETURN(1);
566:
567: case IS_DOUBLE:
568: b->buffer_type = MYSQL_TYPE_DOUBLE;
569: b->buffer = &Z_DVAL_P(param->parameter);
570: PDO_DBG_RETURN(1);
571:
572: default:
573: PDO_DBG_RETURN(0);
574: }
575: #endif /* PDO_USE_MYSQLND */
576: case PDO_PARAM_EVT_FREE:
577: case PDO_PARAM_EVT_EXEC_POST:
578: case PDO_PARAM_EVT_FETCH_PRE:
579: case PDO_PARAM_EVT_FETCH_POST:
580: case PDO_PARAM_EVT_NORMALIZE:
581: /* do nothing */
582: break;
583: }
584: }
585:
586: PDO_DBG_RETURN(1);
587: }
588: /* }}} */
589:
590: static int pdo_mysql_stmt_fetch(pdo_stmt_t *stmt, enum pdo_fetch_orientation ori, long offset TSRMLS_DC) /* {{{ */
591: {
592: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
593: #if PDO_USE_MYSQLND
594: zend_bool fetched_anything;
595:
596: PDO_DBG_ENTER("pdo_mysql_stmt_fetch");
597: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
598: if (S->stmt) {
599: if (FAIL == mysqlnd_stmt_fetch(S->stmt, &fetched_anything) || fetched_anything == FALSE) {
600: PDO_DBG_RETURN(0);
601: }
602:
603: PDO_DBG_RETURN(1);
604: }
605: #else
606: int ret;
607:
608: if (S->stmt) {
609: ret = mysql_stmt_fetch(S->stmt);
610:
611: # ifdef MYSQL_DATA_TRUNCATED
612: if (ret == MYSQL_DATA_TRUNCATED) {
613: ret = 0;
614: }
615: # endif
616:
617: if (ret) {
618: if (ret != MYSQL_NO_DATA) {
619: pdo_mysql_error_stmt(stmt);
620: }
621: PDO_DBG_RETURN(0);
622: }
623:
624: PDO_DBG_RETURN(1);
625: }
626: #endif /* PDO_USE_MYSQLND */
627:
628: if (!S->result) {
629: strcpy(stmt->error_code, "HY000");
630: PDO_DBG_RETURN(0);
631: }
632: #if PDO_USE_MYSQLND
633: if (!S->stmt && S->current_data) {
634: mnd_free(S->current_data);
635: }
636: #endif /* PDO_USE_MYSQLND */
637:
638: if ((S->current_data = mysql_fetch_row(S->result)) == NULL) {
639: #if PDO_USE_MYSQLND
640: if (S->result->unbuf && !S->result->unbuf->eof_reached && mysql_errno(S->H->server)) {
641: #else
642: if (!S->result->eof && mysql_errno(S->H->server)) {
643: #endif
644: pdo_mysql_error_stmt(stmt);
645: }
646: PDO_DBG_RETURN(0);
647: }
648:
649: S->current_lengths = mysql_fetch_lengths(S->result);
650: PDO_DBG_RETURN(1);
651: }
652: /* }}} */
653:
654: static int pdo_mysql_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC) /* {{{ */
655: {
656: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
657: struct pdo_column_data *cols = stmt->columns;
658: int i;
659:
660: PDO_DBG_ENTER("pdo_mysql_stmt_describe");
661: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
662: if (!S->result) {
663: PDO_DBG_RETURN(0);
664: }
665:
666: if (colno >= stmt->column_count) {
667: /* error invalid column */
668: PDO_DBG_RETURN(0);
669: }
670:
671: /* fetch all on demand, this seems easiest
672: ** if we've been here before bail out
673: */
674: if (cols[0].name) {
675: PDO_DBG_RETURN(1);
676: }
677: for (i = 0; i < stmt->column_count; i++) {
678: int namelen;
679:
680: if (S->H->fetch_table_names) {
681: namelen = spprintf(&cols[i].name, 0, "%s.%s", S->fields[i].table, S->fields[i].name);
682: cols[i].namelen = namelen;
683: } else {
684: namelen = strlen(S->fields[i].name);
685: cols[i].namelen = namelen;
686: cols[i].name = estrndup(S->fields[i].name, namelen);
687: }
688:
689: cols[i].precision = S->fields[i].decimals;
690: cols[i].maxlen = S->fields[i].length;
691:
692: #ifdef PDO_USE_MYSQLND
693: if (S->stmt) {
694: cols[i].param_type = PDO_PARAM_ZVAL;
695: } else
696: #endif
697: {
698: cols[i].param_type = PDO_PARAM_STR;
699: }
700: }
701: PDO_DBG_RETURN(1);
702: }
703: /* }}} */
704:
705: static int pdo_mysql_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len, int *caller_frees TSRMLS_DC) /* {{{ */
706: {
707: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
708:
709: PDO_DBG_ENTER("pdo_mysql_stmt_get_col");
710: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
711: if (!S->result) {
712: PDO_DBG_RETURN(0);
713: }
714:
715: /* With mysqlnd data is stored inside mysqlnd, not S->current_data */
716: if (!S->stmt) {
717: if (S->current_data == NULL || !S->result) {
718: PDO_DBG_RETURN(0);
719: }
720: }
721:
722: if (colno >= stmt->column_count) {
723: /* error invalid column */
724: PDO_DBG_RETURN(0);
725: }
726: #if PDO_USE_MYSQLND
727: if (S->stmt) {
728: Z_ADDREF_P(S->stmt->data->result_bind[colno].zv);
729: *ptr = (char*)&S->stmt->data->result_bind[colno].zv;
730: *len = sizeof(zval);
731: PDO_DBG_RETURN(1);
732: }
733: #else
734: if (S->stmt) {
735: if (S->out_null[colno]) {
736: *ptr = NULL;
737: *len = 0;
738: PDO_DBG_RETURN(1);
739: }
740: *ptr = S->bound_result[colno].buffer;
741: if (S->out_length[colno] > S->bound_result[colno].buffer_length) {
742: /* mysql lied about the column width */
743: strcpy(stmt->error_code, "01004"); /* truncated */
744: S->out_length[colno] = S->bound_result[colno].buffer_length;
745: *len = S->out_length[colno];
746: PDO_DBG_RETURN(0);
747: }
748: *len = S->out_length[colno];
749: PDO_DBG_RETURN(1);
750: }
751: #endif
752: *ptr = S->current_data[colno];
753: *len = S->current_lengths[colno];
754: PDO_DBG_RETURN(1);
755: } /* }}} */
756:
757: static char *type_to_name_native(int type) /* {{{ */
758: {
759: #define PDO_MYSQL_NATIVE_TYPE_NAME(x) case FIELD_TYPE_##x: return #x;
760:
761: switch (type) {
762: PDO_MYSQL_NATIVE_TYPE_NAME(STRING)
763: PDO_MYSQL_NATIVE_TYPE_NAME(VAR_STRING)
764: #ifdef FIELD_TYPE_TINY
765: PDO_MYSQL_NATIVE_TYPE_NAME(TINY)
766: #endif
767: #ifdef FIELD_TYPE_BIT
768: PDO_MYSQL_NATIVE_TYPE_NAME(BIT)
769: #endif
770: PDO_MYSQL_NATIVE_TYPE_NAME(SHORT)
771: PDO_MYSQL_NATIVE_TYPE_NAME(LONG)
772: PDO_MYSQL_NATIVE_TYPE_NAME(LONGLONG)
773: PDO_MYSQL_NATIVE_TYPE_NAME(INT24)
774: PDO_MYSQL_NATIVE_TYPE_NAME(FLOAT)
775: PDO_MYSQL_NATIVE_TYPE_NAME(DOUBLE)
776: PDO_MYSQL_NATIVE_TYPE_NAME(DECIMAL)
777: #ifdef FIELD_TYPE_NEWDECIMAL
778: PDO_MYSQL_NATIVE_TYPE_NAME(NEWDECIMAL)
779: #endif
780: #ifdef FIELD_TYPE_GEOMETRY
781: PDO_MYSQL_NATIVE_TYPE_NAME(GEOMETRY)
782: #endif
783: PDO_MYSQL_NATIVE_TYPE_NAME(TIMESTAMP)
784: #ifdef FIELD_TYPE_YEAR
785: PDO_MYSQL_NATIVE_TYPE_NAME(YEAR)
786: #endif
787: PDO_MYSQL_NATIVE_TYPE_NAME(SET)
788: PDO_MYSQL_NATIVE_TYPE_NAME(ENUM)
789: PDO_MYSQL_NATIVE_TYPE_NAME(DATE)
790: #ifdef FIELD_TYPE_NEWDATE
791: PDO_MYSQL_NATIVE_TYPE_NAME(NEWDATE)
792: #endif
793: PDO_MYSQL_NATIVE_TYPE_NAME(TIME)
794: PDO_MYSQL_NATIVE_TYPE_NAME(DATETIME)
795: PDO_MYSQL_NATIVE_TYPE_NAME(TINY_BLOB)
796: PDO_MYSQL_NATIVE_TYPE_NAME(MEDIUM_BLOB)
797: PDO_MYSQL_NATIVE_TYPE_NAME(LONG_BLOB)
798: PDO_MYSQL_NATIVE_TYPE_NAME(BLOB)
799: PDO_MYSQL_NATIVE_TYPE_NAME(NULL)
800: default:
801: return NULL;
802: }
803: #undef PDO_MYSQL_NATIVE_TYPE_NAME
804: } /* }}} */
805:
806: static int pdo_mysql_stmt_col_meta(pdo_stmt_t *stmt, long colno, zval *return_value TSRMLS_DC) /* {{{ */
807: {
808: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
809: const MYSQL_FIELD *F;
810: zval *flags;
811: char *str;
812:
813: PDO_DBG_ENTER("pdo_mysql_stmt_col_meta");
814: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
815: if (!S->result) {
816: PDO_DBG_RETURN(FAILURE);
817: }
818: if (colno >= stmt->column_count) {
819: /* error invalid column */
820: PDO_DBG_RETURN(FAILURE);
821: }
822:
823: array_init(return_value);
824: MAKE_STD_ZVAL(flags);
825: array_init(flags);
826:
827: F = S->fields + colno;
828:
829: if (F->def) {
830: add_assoc_string(return_value, "mysql:def", F->def, 1);
831: }
832: if (IS_NOT_NULL(F->flags)) {
833: add_next_index_string(flags, "not_null", 1);
834: }
835: if (IS_PRI_KEY(F->flags)) {
836: add_next_index_string(flags, "primary_key", 1);
837: }
838: if (F->flags & MULTIPLE_KEY_FLAG) {
839: add_next_index_string(flags, "multiple_key", 1);
840: }
841: if (F->flags & UNIQUE_KEY_FLAG) {
842: add_next_index_string(flags, "unique_key", 1);
843: }
844: if (IS_BLOB(F->flags)) {
845: add_next_index_string(flags, "blob", 1);
846: }
847: str = type_to_name_native(F->type);
848: if (str) {
849: add_assoc_string(return_value, "native_type", str, 1);
850: }
851:
852: #ifdef PDO_USE_MYSQLND
853: switch (F->type) {
854: case MYSQL_TYPE_BIT:
855: case MYSQL_TYPE_YEAR:
856: case MYSQL_TYPE_TINY:
857: case MYSQL_TYPE_SHORT:
858: case MYSQL_TYPE_INT24:
859: case MYSQL_TYPE_LONG:
860: #if SIZEOF_LONG==8
861: case MYSQL_TYPE_LONGLONG:
862: #endif
863: add_assoc_long(return_value, "pdo_type", PDO_PARAM_INT);
864: break;
865: default:
866: add_assoc_long(return_value, "pdo_type", PDO_PARAM_STR);
867: break;
868: }
869: #endif
870:
871: add_assoc_zval(return_value, "flags", flags);
872: add_assoc_string(return_value, "table", (char *) (F->table?F->table:""), 1);
873: PDO_DBG_RETURN(SUCCESS);
874: } /* }}} */
875:
876: static int pdo_mysql_stmt_cursor_closer(pdo_stmt_t *stmt TSRMLS_DC) /* {{{ */
877: {
878: pdo_mysql_stmt *S = (pdo_mysql_stmt*)stmt->driver_data;
879:
880: PDO_DBG_ENTER("pdo_mysql_stmt_cursor_closer");
881: PDO_DBG_INF_FMT("stmt=%p", S->stmt);
882: if (S->result) {
883: mysql_free_result(S->result);
884: S->result = NULL;
885: }
886: if (S->stmt) {
887: int retval;
888: retval = mysql_stmt_free_result(S->stmt);
889: PDO_DBG_RETURN(retval ? 0 : 1);
890: }
891:
892: while (mysql_more_results(S->H->server)) {
893: MYSQL_RES *res;
894: if (mysql_next_result(S->H->server) != 0) {
895: break;
896: }
897: res = mysql_store_result(S->H->server);
898: if (res) {
899: mysql_free_result(res);
900: }
901: }
902: PDO_DBG_RETURN(1);
903: }
904: /* }}} */
905:
906: struct pdo_stmt_methods mysql_stmt_methods = {
907: pdo_mysql_stmt_dtor,
908: pdo_mysql_stmt_execute,
909: pdo_mysql_stmt_fetch,
910: pdo_mysql_stmt_describe,
911: pdo_mysql_stmt_get_col,
912: pdo_mysql_stmt_param_hook,
913: NULL, /* set_attr */
914: NULL, /* get_attr */
915: pdo_mysql_stmt_col_meta,
916: pdo_mysql_stmt_next_rowset,
917: pdo_mysql_stmt_cursor_closer
918: };
919:
920: /*
921: * Local variables:
922: * tab-width: 4
923: * c-basic-offset: 4
924: * End:
925: * vim600: noet sw=4 ts=4 fdm=marker
926: * vim<600: noet sw=4 ts=4
927: */
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