xref: /PHP-7.3/ext/interbase/ibase_query.c (revision 5f83904a)
1 /*
2    +----------------------------------------------------------------------+
3    | PHP Version 7                                                        |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1997-2018 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: Ard Biesheuvel <a.k.biesheuvel@its.tudelft.nl>              |
16    +----------------------------------------------------------------------+
17  */
18 
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
22 
23 #include "php.h"
24 #include "php_ini.h"
25 
26 #if HAVE_IBASE
27 
28 #include "ext/standard/php_standard.h"
29 #include "php_interbase.h"
30 #include "php_ibase_includes.h"
31 
32 #define ISC_LONG_MIN 	INT_MIN
33 #define ISC_LONG_MAX 	INT_MAX
34 
35 #define QUERY_RESULT	1
36 #define EXECUTE_RESULT	2
37 
38 #define FETCH_ROW		1
39 #define FETCH_ARRAY		2
40 
41 typedef struct {
42 	ISC_ARRAY_DESC ar_desc;
43 	ISC_LONG ar_size; /* size of entire array in bytes */
44 	unsigned short el_type, el_size;
45 } ibase_array;
46 
47 typedef struct {
48 	ibase_db_link *link;
49 	ibase_trans *trans;
50 	struct _ib_query *query;
51 	isc_stmt_handle stmt;
52 	unsigned short type;
53 	unsigned char has_more_rows, statement_type;
54 	XSQLDA *out_sqlda;
55 	ibase_array out_array[1]; /* last member */
56 } ibase_result;
57 
58 typedef struct _ib_query {
59 	ibase_db_link *link;
60 	ibase_trans *trans;
61 	ibase_result *result;
62 	zend_resource *result_res;
63 	isc_stmt_handle stmt;
64 	XSQLDA *in_sqlda, *out_sqlda;
65 	ibase_array *in_array, *out_array;
66 	unsigned short in_array_cnt, out_array_cnt;
67 	unsigned short dialect;
68 	char statement_type;
69 	char *query;
70 	zend_resource *trans_res;
71 } ibase_query;
72 
73 typedef struct {
74 	unsigned short vary_length;
75 	char vary_string[1];
76 } IBVARY;
77 
78 /* sql variables union
79  * used for convert and binding input variables
80  */
81 typedef struct {
82 	union {
83 		short sval;
84 		float fval;
85 		ISC_LONG lval;
86 		ISC_QUAD qval;
87 		ISC_TIMESTAMP tsval;
88 		ISC_DATE dtval;
89 		ISC_TIME tmval;
90 	} val;
91 	short sqlind;
92 } BIND_BUF;
93 
94 static int le_result, le_query;
95 
96 #define LE_RESULT "Firebird/InterBase result"
97 #define LE_QUERY "Firebird/InterBase query"
98 
_php_ibase_free_xsqlda(XSQLDA * sqlda)99 static void _php_ibase_free_xsqlda(XSQLDA *sqlda) /* {{{ */
100 {
101 	int i;
102 	XSQLVAR *var;
103 
104 	IBDEBUG("Free XSQLDA?");
105 	if (sqlda) {
106 		IBDEBUG("Freeing XSQLDA...");
107 		var = sqlda->sqlvar;
108 		for (i = 0; i < sqlda->sqld; i++, var++) {
109 			efree(var->sqldata);
110 			if (var->sqlind) {
111 				efree(var->sqlind);
112 			}
113 		}
114 		efree(sqlda);
115 	}
116 }
117 /* }}} */
118 
_php_ibase_free_stmt_handle(ibase_db_link * link,isc_stmt_handle stmt)119 static void _php_ibase_free_stmt_handle(ibase_db_link *link, isc_stmt_handle stmt) /* {{{ */
120 {
121 	static char info[] = { isc_info_base_level, isc_info_end };
122 
123 	if (stmt) {
124 		char res_buf[8];
125 		IBDEBUG("Dropping statement handle (free_stmt_handle)...");
126 		/* Only free statement if db-connection is still open */
127 		if (SUCCESS == isc_database_info(IB_STATUS, &link->handle,
128 							sizeof(info), info, sizeof(res_buf), res_buf)) {
129 			if (isc_dsql_free_statement(IB_STATUS, &stmt, DSQL_drop)) {
130 				_php_ibase_error();
131 			}
132 		}
133 	}
134 }
135 /* }}} */
136 
_php_ibase_free_result(zend_resource * rsrc)137 static void _php_ibase_free_result(zend_resource *rsrc) /* {{{ */
138 {
139 	ibase_result *ib_result = (ibase_result *) rsrc->ptr;
140 
141 	IBDEBUG("Freeing result by dtor...");
142 	if (ib_result) {
143 		_php_ibase_free_xsqlda(ib_result->out_sqlda);
144 		if (ib_result->query != NULL) {
145 			IBDEBUG("query still valid; don't drop statement handle");
146 			ib_result->query->result = NULL;	/* Indicate to query, that result is released */
147 		} else {
148 			_php_ibase_free_stmt_handle(ib_result->link, ib_result->stmt);
149 		}
150 		efree(ib_result);
151 	}
152 }
153 /* }}} */
154 
_php_ibase_free_query(ibase_query * ib_query)155 static void _php_ibase_free_query(ibase_query *ib_query) /* {{{ */
156 {
157 	IBDEBUG("Freeing query...");
158 
159 	if (ib_query->in_sqlda) {
160 		efree(ib_query->in_sqlda);
161 	}
162 	if (ib_query->out_sqlda) {
163 		efree(ib_query->out_sqlda);
164 	}
165 	if (ib_query->result != NULL) {
166 		IBDEBUG("result still valid; don't drop statement handle");
167 		ib_query->result->query = NULL;	/* Indicate to result, that query is released */
168 	} else {
169 		_php_ibase_free_stmt_handle(ib_query->link, ib_query->stmt);
170 	}
171 	if (ib_query->in_array) {
172 		efree(ib_query->in_array);
173 	}
174 	if (ib_query->out_array) {
175 		efree(ib_query->out_array);
176 	}
177 	if (ib_query->query) {
178 		efree(ib_query->query);
179 	}
180 }
181 /* }}} */
182 
php_ibase_free_query_rsrc(zend_resource * rsrc)183 static void php_ibase_free_query_rsrc(zend_resource *rsrc) /* {{{ */
184 {
185 	ibase_query *ib_query = (ibase_query *)rsrc->ptr;
186 
187 	if (ib_query != NULL) {
188 		IBDEBUG("Preparing to free query by dtor...");
189 		_php_ibase_free_query(ib_query);
190 		efree(ib_query);
191 	}
192 }
193 /* }}} */
194 
php_ibase_query_minit(INIT_FUNC_ARGS)195 void php_ibase_query_minit(INIT_FUNC_ARGS) /* {{{ */
196 {
197 	le_result = zend_register_list_destructors_ex(_php_ibase_free_result, NULL,
198 	    "interbase result", module_number);
199 	le_query = zend_register_list_destructors_ex(php_ibase_free_query_rsrc, NULL,
200 	    "interbase query", module_number);
201 }
202 /* }}} */
203 
_php_ibase_alloc_array(ibase_array ** ib_arrayp,XSQLDA * sqlda,isc_db_handle link,isc_tr_handle trans,unsigned short * array_cnt)204 static int _php_ibase_alloc_array(ibase_array **ib_arrayp, XSQLDA *sqlda, /* {{{ */
205 	isc_db_handle link, isc_tr_handle trans, unsigned short *array_cnt)
206 {
207 	unsigned short i, n;
208 	ibase_array *ar;
209 
210 	/* first check if we have any arrays at all */
211 	for (i = *array_cnt = 0; i < sqlda->sqld; ++i) {
212 		if ((sqlda->sqlvar[i].sqltype & ~1) == SQL_ARRAY) {
213 			++*array_cnt;
214 		}
215 	}
216 	if (! *array_cnt) return SUCCESS;
217 
218 	ar = safe_emalloc(sizeof(ibase_array), *array_cnt, 0);
219 
220 	for (i = n = 0; i < sqlda->sqld; ++i) {
221 		unsigned short dim;
222 		zend_ulong ar_size = 1;
223 		XSQLVAR *var = &sqlda->sqlvar[i];
224 
225 		if ((var->sqltype & ~1) == SQL_ARRAY) {
226 			ibase_array *a = &ar[n++];
227 			ISC_ARRAY_DESC *ar_desc = &a->ar_desc;
228 
229 			if (isc_array_lookup_bounds(IB_STATUS, &link, &trans, var->relname,
230 					var->sqlname, ar_desc)) {
231 				_php_ibase_error();
232 				efree(ar);
233 				return FAILURE;
234 			}
235 
236 			switch (ar_desc->array_desc_dtype) {
237 				case blr_text:
238 				case blr_text2:
239 					a->el_type = SQL_TEXT;
240 					a->el_size = ar_desc->array_desc_length;
241 					break;
242 				case blr_short:
243 					a->el_type = SQL_SHORT;
244 					a->el_size = sizeof(short);
245 					break;
246 				case blr_long:
247 					a->el_type = SQL_LONG;
248 					a->el_size = sizeof(ISC_LONG);
249 					break;
250 				case blr_float:
251 					a->el_type = SQL_FLOAT;
252 					a->el_size = sizeof(float);
253 					break;
254 				case blr_double:
255 					a->el_type = SQL_DOUBLE;
256 					a->el_size = sizeof(double);
257 					break;
258 				case blr_int64:
259 					a->el_type = SQL_INT64;
260 					a->el_size = sizeof(ISC_INT64);
261 					break;
262 				case blr_timestamp:
263 					a->el_type = SQL_TIMESTAMP;
264 					a->el_size = sizeof(ISC_TIMESTAMP);
265 					break;
266 				case blr_sql_date:
267 					a->el_type = SQL_TYPE_DATE;
268 					a->el_size = sizeof(ISC_DATE);
269 					break;
270 				case blr_sql_time:
271 					a->el_type = SQL_TYPE_TIME;
272 					a->el_size = sizeof(ISC_TIME);
273 					break;
274 				case blr_varying:
275 				case blr_varying2:
276 					/**
277 					 * IB has a strange way of handling VARCHAR arrays. It doesn't store
278 					 * the length in the first short, as with VARCHAR fields. It does,
279 					 * however, expect the extra short to be allocated for each element.
280 					 */
281 					a->el_type = SQL_TEXT;
282 					a->el_size = ar_desc->array_desc_length + sizeof(short);
283 					break;
284 				case blr_quad:
285 				case blr_blob_id:
286 				case blr_cstring:
287 				case blr_cstring2:
288 					/**
289 					 * These types are mentioned as array types in the manual, but I
290 					 * wouldn't know how to create an array field with any of these
291 					 * types. I assume these types are not applicable to arrays, and
292 					 * were mentioned erroneously.
293 					 */
294 				default:
295 					_php_ibase_module_error("Unsupported array type %d in relation '%s' column '%s'",
296 						ar_desc->array_desc_dtype, var->relname, var->sqlname);
297 					efree(ar);
298 					return FAILURE;
299 			} /* switch array_desc_type */
300 
301 			/* calculate elements count */
302 			for (dim = 0; dim < ar_desc->array_desc_dimensions; dim++) {
303 				ar_size *= 1 + ar_desc->array_desc_bounds[dim].array_bound_upper
304 					-ar_desc->array_desc_bounds[dim].array_bound_lower;
305 			}
306 			a->ar_size = a->el_size * ar_size;
307 		} /* if SQL_ARRAY */
308 	} /* for column */
309 	*ib_arrayp = ar;
310 	return SUCCESS;
311 }
312 /* }}} */
313 
314 /* allocate and prepare query */
_php_ibase_alloc_query(ibase_query * ib_query,ibase_db_link * link,ibase_trans * trans,char * query,unsigned short dialect,zend_resource * trans_res)315 static int _php_ibase_alloc_query(ibase_query *ib_query, ibase_db_link *link, /* {{{ */
316 	ibase_trans *trans, char *query, unsigned short dialect, zend_resource *trans_res)
317 {
318 	static char info_type[] = {isc_info_sql_stmt_type};
319 	char result[8];
320 
321 	/* Return FAILURE, if querystring is empty */
322 	if (*query == '\0') {
323 		php_error_docref(NULL, E_WARNING, "Querystring empty.");
324 		return FAILURE;
325 	}
326 
327 	ib_query->link = link;
328 	ib_query->trans = trans;
329 	ib_query->result_res = NULL;
330 	ib_query->result = NULL;
331 	ib_query->stmt = 0;
332 	ib_query->in_array = NULL;
333 	ib_query->out_array = NULL;
334 	ib_query->dialect = dialect;
335 	ib_query->query = estrdup(query);
336 	ib_query->trans_res = trans_res;
337 	ib_query->out_sqlda = NULL;
338 	ib_query->in_sqlda = NULL;
339 
340 	if (isc_dsql_allocate_statement(IB_STATUS, &link->handle, &ib_query->stmt)) {
341 		_php_ibase_error();
342 		goto _php_ibase_alloc_query_error;
343 	}
344 
345 	ib_query->out_sqlda = (XSQLDA *) emalloc(XSQLDA_LENGTH(1));
346 	ib_query->out_sqlda->sqln = 1;
347 	ib_query->out_sqlda->version = SQLDA_CURRENT_VERSION;
348 
349 	if (isc_dsql_prepare(IB_STATUS, &ib_query->trans->handle, &ib_query->stmt,
350 			0, query, dialect, ib_query->out_sqlda)) {
351 		_php_ibase_error();
352 		goto _php_ibase_alloc_query_error;
353 	}
354 
355 	/* find out what kind of statement was prepared */
356 	if (isc_dsql_sql_info(IB_STATUS, &ib_query->stmt, sizeof(info_type),
357 			info_type, sizeof(result), result)) {
358 		_php_ibase_error();
359 		goto _php_ibase_alloc_query_error;
360 	}
361 	ib_query->statement_type = result[3];
362 
363 	/* not enough output variables ? */
364 	if (ib_query->out_sqlda->sqld > ib_query->out_sqlda->sqln) {
365 		ib_query->out_sqlda = erealloc(ib_query->out_sqlda, XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
366 		ib_query->out_sqlda->sqln = ib_query->out_sqlda->sqld;
367 		ib_query->out_sqlda->version = SQLDA_CURRENT_VERSION;
368 		if (isc_dsql_describe(IB_STATUS, &ib_query->stmt, SQLDA_CURRENT_VERSION, ib_query->out_sqlda)) {
369 			_php_ibase_error();
370 			goto _php_ibase_alloc_query_error;
371 		}
372 	}
373 
374 	/* maybe have input placeholders? */
375 	ib_query->in_sqlda = emalloc(XSQLDA_LENGTH(1));
376 	ib_query->in_sqlda->sqln = 1;
377 	ib_query->in_sqlda->version = SQLDA_CURRENT_VERSION;
378 	if (isc_dsql_describe_bind(IB_STATUS, &ib_query->stmt, SQLDA_CURRENT_VERSION, ib_query->in_sqlda)) {
379 		_php_ibase_error();
380 		goto _php_ibase_alloc_query_error;
381 	}
382 
383 	/* not enough input variables ? */
384 	if (ib_query->in_sqlda->sqln < ib_query->in_sqlda->sqld) {
385 		ib_query->in_sqlda = erealloc(ib_query->in_sqlda, XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
386 		ib_query->in_sqlda->sqln = ib_query->in_sqlda->sqld;
387 		ib_query->in_sqlda->version = SQLDA_CURRENT_VERSION;
388 
389 		if (isc_dsql_describe_bind(IB_STATUS, &ib_query->stmt,
390 				SQLDA_CURRENT_VERSION, ib_query->in_sqlda)) {
391 			_php_ibase_error();
392 			goto _php_ibase_alloc_query_error;
393 		}
394 	}
395 
396 	/* no, haven't placeholders at all */
397 	if (ib_query->in_sqlda->sqld == 0) {
398 		efree(ib_query->in_sqlda);
399 		ib_query->in_sqlda = NULL;
400 	} else if (FAILURE == _php_ibase_alloc_array(&ib_query->in_array, ib_query->in_sqlda,
401 			link->handle, trans->handle, &ib_query->in_array_cnt)) {
402 		goto _php_ibase_alloc_query_error;
403 	}
404 
405 	if (ib_query->out_sqlda->sqld == 0) {
406 		efree(ib_query->out_sqlda);
407 		ib_query->out_sqlda = NULL;
408 	} else 	if (FAILURE == _php_ibase_alloc_array(&ib_query->out_array, ib_query->out_sqlda,
409 			link->handle, trans->handle, &ib_query->out_array_cnt)) {
410 		goto _php_ibase_alloc_query_error;
411 	}
412 
413 	return SUCCESS;
414 
415 _php_ibase_alloc_query_error:
416 
417 	if (ib_query->out_sqlda) {
418 		efree(ib_query->out_sqlda);
419 	}
420 	if (ib_query->in_sqlda) {
421 		efree(ib_query->in_sqlda);
422 	}
423 	if (ib_query->out_array) {
424 		efree(ib_query->out_array);
425 	}
426 	if (ib_query->query) {
427 		efree(ib_query->query);
428 	}
429 	return FAILURE;
430 }
431 /* }}} */
432 
_php_ibase_bind_array(zval * val,char * buf,zend_ulong buf_size,ibase_array * array,int dim)433 static int _php_ibase_bind_array(zval *val, char *buf, zend_ulong buf_size, /* {{{ */
434 	ibase_array *array, int dim)
435 {
436 	zval null_val, *pnull_val = &null_val;
437 	int u_bound = array->ar_desc.array_desc_bounds[dim].array_bound_upper,
438 		l_bound = array->ar_desc.array_desc_bounds[dim].array_bound_lower,
439 		dim_len = 1 + u_bound - l_bound;
440 
441 	ZVAL_NULL(pnull_val);
442 
443 	if (dim < array->ar_desc.array_desc_dimensions) {
444 		zend_ulong slice_size = buf_size / dim_len;
445 		unsigned short i;
446 		zval *subval = val;
447 
448 		if (Z_TYPE_P(val) == IS_ARRAY) {
449 			zend_hash_internal_pointer_reset(Z_ARRVAL_P(val));
450 		}
451 
452 		for (i = 0; i < dim_len; ++i) {
453 
454 			if (Z_TYPE_P(val) == IS_ARRAY &&
455 				(subval = zend_hash_get_current_data(Z_ARRVAL_P(val))) == NULL)
456 			{
457 				subval = pnull_val;
458 			}
459 
460 			if (_php_ibase_bind_array(subval, buf, slice_size, array, dim+1) == FAILURE)
461 			{
462 				return FAILURE;
463 			}
464 			buf += slice_size;
465 
466 			if (Z_TYPE_P(val) == IS_ARRAY) {
467 				zend_hash_move_forward(Z_ARRVAL_P(val));
468 			}
469 		}
470 
471 		if (Z_TYPE_P(val) == IS_ARRAY) {
472 			zend_hash_internal_pointer_reset(Z_ARRVAL_P(val));
473 		}
474 
475 	} else {
476 		/* expect a single value */
477 		if (Z_TYPE_P(val) == IS_NULL) {
478 			memset(buf, 0, buf_size);
479 		} else if (array->ar_desc.array_desc_scale < 0) {
480 
481 			/* no coercion for array types */
482 			double l;
483 
484 			convert_to_double(val);
485 
486 			if (Z_DVAL_P(val) > 0) {
487 				l = Z_DVAL_P(val) * pow(10, -array->ar_desc.array_desc_scale) + .5;
488 			} else {
489 				l = Z_DVAL_P(val) * pow(10, -array->ar_desc.array_desc_scale) - .5;
490 			}
491 
492 			switch (array->el_type) {
493 				case SQL_SHORT:
494 					if (l > SHRT_MAX || l < SHRT_MIN) {
495 						_php_ibase_module_error("Array parameter exceeds field width");
496 						return FAILURE;
497 					}
498 					*(short*) buf = (short) l;
499 					break;
500 				case SQL_LONG:
501 					if (l > ISC_LONG_MAX || l < ISC_LONG_MIN) {
502 						_php_ibase_module_error("Array parameter exceeds field width");
503 						return FAILURE;
504 					}
505 					*(ISC_LONG*) buf = (ISC_LONG) l;
506 					break;
507 				case SQL_INT64:
508 					{
509 						long double l;
510 
511 						convert_to_string(val);
512 
513 						if (!sscanf(Z_STRVAL_P(val), "%Lf", &l)) {
514 							_php_ibase_module_error("Cannot convert '%s' to long double",
515 								 Z_STRVAL_P(val));
516 							return FAILURE;
517 						}
518 
519 						if (l > 0) {
520 							*(ISC_INT64 *) buf = (ISC_INT64) (l * pow(10,
521 								-array->ar_desc.array_desc_scale) + .5);
522 						} else {
523 							*(ISC_INT64 *) buf = (ISC_INT64) (l * pow(10,
524 								-array->ar_desc.array_desc_scale) - .5);
525 						}
526 					}
527 					break;
528 			}
529 		} else {
530 			struct tm t = { 0, 0, 0, 0, 0, 0 };
531 
532 			switch (array->el_type) {
533 #ifndef HAVE_STRPTIME
534 				unsigned short n;
535 #endif
536 #if (SIZEOF_ZEND_LONG < 8)
537 				ISC_INT64 l;
538 #endif
539 
540 				case SQL_SHORT:
541 					convert_to_long(val);
542 					if (Z_LVAL_P(val) > SHRT_MAX || Z_LVAL_P(val) < SHRT_MIN) {
543 						_php_ibase_module_error("Array parameter exceeds field width");
544 						return FAILURE;
545 					}
546 					*(short *) buf = (short) Z_LVAL_P(val);
547 					break;
548 				case SQL_LONG:
549 					convert_to_long(val);
550 #if (SIZEOF_ZEND_LONG > 4)
551 					if (Z_LVAL_P(val) > ISC_LONG_MAX || Z_LVAL_P(val) < ISC_LONG_MIN) {
552 						_php_ibase_module_error("Array parameter exceeds field width");
553 						return FAILURE;
554 					}
555 #endif
556 					*(ISC_LONG *) buf = (ISC_LONG) Z_LVAL_P(val);
557 					break;
558 				case SQL_INT64:
559 #if (SIZEOF_ZEND_LONG >= 8)
560 					convert_to_long(val);
561 					*(zend_long *) buf = Z_LVAL_P(val);
562 #else
563 					convert_to_string(val);
564 					if (!sscanf(Z_STRVAL_P(val), "%" LL_MASK "d", &l)) {
565 						_php_ibase_module_error("Cannot convert '%s' to long integer",
566 							 Z_STRVAL_P(val));
567 						return FAILURE;
568 					} else {
569 						*(ISC_INT64 *) buf = l;
570 					}
571 #endif
572 					break;
573 				case SQL_FLOAT:
574 					convert_to_double(val);
575 					*(float*) buf = (float) Z_DVAL_P(val);
576 					break;
577 				case SQL_DOUBLE:
578 					convert_to_double(val);
579 					*(double*) buf = Z_DVAL_P(val);
580 					break;
581 				case SQL_TIMESTAMP:
582 					convert_to_string(val);
583 #ifdef HAVE_STRPTIME
584 					strptime(Z_STRVAL_P(val), INI_STR("ibase.timestampformat"), &t);
585 #else
586 					n = sscanf(Z_STRVAL_P(val), "%d%*[/]%d%*[/]%d %d%*[:]%d%*[:]%d",
587 						&t.tm_mon, &t.tm_mday, &t.tm_year, &t.tm_hour, &t.tm_min, &t.tm_sec);
588 
589 					if (n != 3 && n != 6) {
590 						_php_ibase_module_error("Invalid date/time format (expected 3 or 6 fields, got %d."
591 							" Use format 'm/d/Y H:i:s'. You gave '%s')", n, Z_STRVAL_P(val));
592 						return FAILURE;
593 					}
594 					t.tm_year -= 1900;
595 					t.tm_mon--;
596 #endif
597 					isc_encode_timestamp(&t, (ISC_TIMESTAMP * ) buf);
598 					break;
599 				case SQL_TYPE_DATE:
600 					convert_to_string(val);
601 #ifdef HAVE_STRPTIME
602 					strptime(Z_STRVAL_P(val), INI_STR("ibase.dateformat"), &t);
603 #else
604 					n = sscanf(Z_STRVAL_P(val), "%d%*[/]%d%*[/]%d", &t.tm_mon, &t.tm_mday, &t.tm_year);
605 
606 					if (n != 3) {
607 						_php_ibase_module_error("Invalid date format (expected 3 fields, got %d. "
608 							"Use format 'm/d/Y' You gave '%s')", n, Z_STRVAL_P(val));
609 						return FAILURE;
610 					}
611 					t.tm_year -= 1900;
612 					t.tm_mon--;
613 #endif
614 					isc_encode_sql_date(&t, (ISC_DATE *) buf);
615 					break;
616 				case SQL_TYPE_TIME:
617 					convert_to_string(val);
618 #ifdef HAVE_STRPTIME
619 					strptime(Z_STRVAL_P(val), INI_STR("ibase.timeformat"), &t);
620 #else
621 					n = sscanf(Z_STRVAL_P(val), "%d%*[:]%d%*[:]%d", &t.tm_hour, &t.tm_min, &t.tm_sec);
622 
623 					if (n != 3) {
624 						_php_ibase_module_error("Invalid time format (expected 3 fields, got %d. "
625 							"Use format 'H:i:s'. You gave '%s')", n, Z_STRVAL_P(val));
626 						return FAILURE;
627 					}
628 #endif
629 					isc_encode_sql_time(&t, (ISC_TIME *) buf);
630 					break;
631 				default:
632 					convert_to_string(val);
633 					strlcpy(buf, Z_STRVAL_P(val), buf_size);
634 			}
635 		}
636 	}
637 	return SUCCESS;
638 }
639 /* }}} */
640 
_php_ibase_bind(XSQLDA * sqlda,zval * b_vars,BIND_BUF * buf,ibase_query * ib_query)641 static int _php_ibase_bind(XSQLDA *sqlda, zval *b_vars, BIND_BUF *buf, /* {{{ */
642 	ibase_query *ib_query)
643 {
644 	int i, array_cnt = 0, rv = SUCCESS;
645 
646 	for (i = 0; i < sqlda->sqld; ++i) { /* bound vars */
647 
648 		zval *b_var = &b_vars[i];
649 		XSQLVAR *var = &sqlda->sqlvar[i];
650 
651 		var->sqlind = &buf[i].sqlind;
652 
653 		/* check if a NULL should be inserted */
654 		switch (Z_TYPE_P(b_var)) {
655 			int force_null;
656 
657 			case IS_STRING:
658 
659 				force_null = 0;
660 
661 				/* for these types, an empty string can be handled like a NULL value */
662 				switch (var->sqltype & ~1) {
663 					case SQL_SHORT:
664 					case SQL_LONG:
665 					case SQL_INT64:
666 					case SQL_FLOAT:
667 					case SQL_DOUBLE:
668 					case SQL_TIMESTAMP:
669 					case SQL_TYPE_DATE:
670 					case SQL_TYPE_TIME:
671 						force_null = (Z_STRLEN_P(b_var) == 0);
672 				}
673 
674 				if (! force_null) break;
675 
676 			case IS_NULL:
677 					buf[i].sqlind = -1;
678 
679 				if (var->sqltype & SQL_ARRAY) ++array_cnt;
680 
681 				continue;
682 		}
683 
684 		/* if we make it to this point, we must provide a value for the parameter */
685 
686 		buf[i].sqlind = 0;
687 
688 		var->sqldata = (void*)&buf[i].val;
689 
690 		switch (var->sqltype & ~1) {
691 			struct tm t;
692 
693 			case SQL_TIMESTAMP:
694 			case SQL_TYPE_DATE:
695 			case SQL_TYPE_TIME:
696 				if (Z_TYPE_P(b_var) == IS_LONG) {
697 					struct tm *res;
698 					res = php_gmtime_r(&Z_LVAL_P(b_var), &t);
699 					if (!res) {
700 						return FAILURE;
701 					}
702 				} else {
703 #ifdef HAVE_STRPTIME
704 					char *format = INI_STR("ibase.timestampformat");
705 
706 					convert_to_string(b_var);
707 
708 					switch (var->sqltype & ~1) {
709 						case SQL_TYPE_DATE:
710 							format = INI_STR("ibase.dateformat");
711 							break;
712 						case SQL_TYPE_TIME:
713 							format = INI_STR("ibase.timeformat");
714 					}
715 					if (!strptime(Z_STRVAL_P(b_var), format, &t)) {
716 						/* strptime() cannot handle it, so let IB have a try */
717 						break;
718 					}
719 #else /* ifndef HAVE_STRPTIME */
720 					break; /* let IB parse it as a string */
721 #endif
722 				}
723 
724 				switch (var->sqltype & ~1) {
725 					default: /* == case SQL_TIMESTAMP */
726 						isc_encode_timestamp(&t, &buf[i].val.tsval);
727 						break;
728 					case SQL_TYPE_DATE:
729 						isc_encode_sql_date(&t, &buf[i].val.dtval);
730 						break;
731 					case SQL_TYPE_TIME:
732 						isc_encode_sql_time(&t, &buf[i].val.tmval);
733 						break;
734 				}
735 				continue;
736 
737 			case SQL_BLOB:
738 
739 				convert_to_string(b_var);
740 
741 				if (Z_STRLEN_P(b_var) != BLOB_ID_LEN ||
742 					!_php_ibase_string_to_quad(Z_STRVAL_P(b_var), &buf[i].val.qval)) {
743 
744 					ibase_blob ib_blob = { 0, BLOB_INPUT };
745 
746 					if (isc_create_blob(IB_STATUS, &ib_query->link->handle,
747 							&ib_query->trans->handle, &ib_blob.bl_handle, &ib_blob.bl_qd)) {
748 						_php_ibase_error();
749 						return FAILURE;
750 					}
751 
752 					if (_php_ibase_blob_add(b_var, &ib_blob) != SUCCESS) {
753 						return FAILURE;
754 					}
755 
756 					if (isc_close_blob(IB_STATUS, &ib_blob.bl_handle)) {
757 						_php_ibase_error();
758 						return FAILURE;
759 					}
760 					buf[i].val.qval = ib_blob.bl_qd;
761 				}
762 				continue;
763 
764 			case SQL_ARRAY:
765 
766 				if (Z_TYPE_P(b_var) != IS_ARRAY) {
767 					convert_to_string(b_var);
768 
769 					if (Z_STRLEN_P(b_var) != BLOB_ID_LEN ||
770 						!_php_ibase_string_to_quad(Z_STRVAL_P(b_var), &buf[i].val.qval)) {
771 
772 						_php_ibase_module_error("Parameter %d: invalid array ID",i+1);
773 						rv = FAILURE;
774 					}
775 				} else {
776 					/* convert the array data into something IB can understand */
777 					ibase_array *ar = &ib_query->in_array[array_cnt];
778 					void *array_data = emalloc(ar->ar_size);
779 					ISC_QUAD array_id = { 0, 0 };
780 
781 					if (FAILURE == _php_ibase_bind_array(b_var, array_data, ar->ar_size,
782 							ar, 0)) {
783 						_php_ibase_module_error("Parameter %d: failed to bind array argument", i+1);
784 						efree(array_data);
785 						rv = FAILURE;
786 						continue;
787 					}
788 
789 					if (isc_array_put_slice(IB_STATUS, &ib_query->link->handle, &ib_query->trans->handle,
790 							&array_id, &ar->ar_desc, array_data, &ar->ar_size)) {
791 						_php_ibase_error();
792 						efree(array_data);
793 						return FAILURE;
794 					}
795 					buf[i].val.qval = array_id;
796 					efree(array_data);
797 				}
798 				++array_cnt;
799 				continue;
800 			} /* switch */
801 
802 			/* we end up here if none of the switch cases handled the field */
803 			convert_to_string(b_var);
804 			var->sqldata = Z_STRVAL_P(b_var);
805 			var->sqllen	 = Z_STRLEN_P(b_var);
806 			var->sqltype = SQL_TEXT;
807 	} /* for */
808 	return rv;
809 }
810 /* }}} */
811 
_php_ibase_alloc_xsqlda(XSQLDA * sqlda)812 static void _php_ibase_alloc_xsqlda(XSQLDA *sqlda) /* {{{ */
813 {
814 	int i;
815 
816 	for (i = 0; i < sqlda->sqld; i++) {
817 		XSQLVAR *var = &sqlda->sqlvar[i];
818 
819 		switch (var->sqltype & ~1) {
820 			case SQL_TEXT:
821 				var->sqldata = safe_emalloc(sizeof(char), var->sqllen, 0);
822 				break;
823 			case SQL_VARYING:
824 				var->sqldata = safe_emalloc(sizeof(char), var->sqllen + sizeof(short), 0);
825 				break;
826 			case SQL_SHORT:
827 				var->sqldata = emalloc(sizeof(short));
828 				break;
829 			case SQL_LONG:
830 				var->sqldata = emalloc(sizeof(ISC_LONG));
831 				break;
832 			case SQL_FLOAT:
833 				var->sqldata = emalloc(sizeof(float));
834 					break;
835 			case SQL_DOUBLE:
836 				var->sqldata = emalloc(sizeof(double));
837 				break;
838 			case SQL_INT64:
839 				var->sqldata = emalloc(sizeof(ISC_INT64));
840 				break;
841 			case SQL_TIMESTAMP:
842 				var->sqldata = emalloc(sizeof(ISC_TIMESTAMP));
843 				break;
844 			case SQL_TYPE_DATE:
845 				var->sqldata = emalloc(sizeof(ISC_DATE));
846 				break;
847 			case SQL_TYPE_TIME:
848 				var->sqldata = emalloc(sizeof(ISC_TIME));
849 				break;
850 			case SQL_BLOB:
851 			case SQL_ARRAY:
852 				var->sqldata = emalloc(sizeof(ISC_QUAD));
853 				break;
854 		} /* switch */
855 
856 		if (var->sqltype & 1) { /* sql NULL flag */
857 			var->sqlind = emalloc(sizeof(short));
858 		} else {
859 			var->sqlind = NULL;
860 		}
861 	} /* for */
862 }
863 /* }}} */
864 
_php_ibase_exec(INTERNAL_FUNCTION_PARAMETERS,ibase_result ** ib_resultp,ibase_query * ib_query,zval * args)865 static int _php_ibase_exec(INTERNAL_FUNCTION_PARAMETERS, ibase_result **ib_resultp, /* {{{ */
866 	ibase_query *ib_query, zval *args)
867 {
868 	XSQLDA *in_sqlda = NULL, *out_sqlda = NULL;
869 	BIND_BUF *bind_buf = NULL;
870 	int i, rv = FAILURE;
871 	static char info_count[] = { isc_info_sql_records };
872 	char result[64];
873 	ISC_STATUS isc_result;
874 	int argc = ib_query->in_sqlda ? ib_query->in_sqlda->sqld : 0;
875 
876 	RESET_ERRMSG;
877 
878 	for (i = 0; i < argc; ++i) {
879 		SEPARATE_ZVAL(&args[i]);
880 	}
881 
882 	switch (ib_query->statement_type) {
883 		isc_tr_handle tr;
884 		ibase_tr_list **l;
885 		ibase_trans *trans;
886 
887 		case isc_info_sql_stmt_start_trans:
888 
889 			/* a SET TRANSACTION statement should be executed with a NULL trans handle */
890 			tr = 0;
891 
892 			if (isc_dsql_execute_immediate(IB_STATUS, &ib_query->link->handle, &tr, 0,
893 					ib_query->query, ib_query->dialect, NULL)) {
894 				_php_ibase_error();
895 				goto _php_ibase_exec_error;
896 			}
897 
898 			trans = (ibase_trans *) emalloc(sizeof(ibase_trans));
899 			trans->handle = tr;
900 			trans->link_cnt = 1;
901 			trans->affected_rows = 0;
902 			trans->db_link[0] = ib_query->link;
903 
904 			if (ib_query->link->tr_list == NULL) {
905 				ib_query->link->tr_list = (ibase_tr_list *) emalloc(sizeof(ibase_tr_list));
906 				ib_query->link->tr_list->trans = NULL;
907 				ib_query->link->tr_list->next = NULL;
908 			}
909 
910 			/* link the transaction into the connection-transaction list */
911 			for (l = &ib_query->link->tr_list; *l != NULL; l = &(*l)->next);
912 			*l = (ibase_tr_list *) emalloc(sizeof(ibase_tr_list));
913 			(*l)->trans = trans;
914 			(*l)->next = NULL;
915 
916 			RETVAL_RES(zend_register_resource(trans, le_trans));
917 			Z_TRY_ADDREF_P(return_value);
918 
919 			return SUCCESS;
920 
921 		case isc_info_sql_stmt_commit:
922 		case isc_info_sql_stmt_rollback:
923 
924 			if (isc_dsql_execute_immediate(IB_STATUS, &ib_query->link->handle,
925 					&ib_query->trans->handle, 0, ib_query->query, ib_query->dialect, NULL)) {
926 				_php_ibase_error();
927 				goto _php_ibase_exec_error;
928 			}
929 
930 			if (ib_query->trans->handle == 0 && ib_query->trans_res != NULL) {
931 				/* transaction was released by the query and was a registered resource,
932 				   so we have to release it */
933 				zend_list_delete(ib_query->trans_res);
934 				ib_query->trans_res = NULL;
935 			}
936 
937 			RETVAL_TRUE;
938 
939 			return SUCCESS;
940 
941 		default:
942 			RETVAL_FALSE;
943 	}
944 
945 	/* allocate sqlda and output buffers */
946 	if (ib_query->out_sqlda) { /* output variables in select, select for update */
947 		ibase_result *res;
948 
949 		IBDEBUG("Query wants XSQLDA for output");
950 		res = emalloc(sizeof(ibase_result)+sizeof(ibase_array)*max(0,ib_query->out_array_cnt-1));
951 		res->link = ib_query->link;
952 		res->trans = ib_query->trans;
953 		res->stmt = ib_query->stmt;
954 		/* ib_result and ib_query point at each other to handle release of statement handle properly */
955 		res->query = ib_query;
956 		ib_query->result = res;
957 		res->statement_type = ib_query->statement_type;
958 		res->has_more_rows = 1;
959 
960 		out_sqlda = res->out_sqlda = emalloc(XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
961 		memcpy(out_sqlda, ib_query->out_sqlda, XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
962 		_php_ibase_alloc_xsqlda(out_sqlda);
963 
964 		if (ib_query->out_array) {
965 			memcpy(&res->out_array, ib_query->out_array, sizeof(ibase_array)*ib_query->out_array_cnt);
966 		}
967 		*ib_resultp = res;
968 	}
969 
970 	if (ib_query->in_sqlda) { /* has placeholders */
971 		IBDEBUG("Query wants XSQLDA for input");
972 		in_sqlda = emalloc(XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
973 		memcpy(in_sqlda, ib_query->in_sqlda, XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
974 		bind_buf = safe_emalloc(sizeof(BIND_BUF), ib_query->in_sqlda->sqld, 0);
975 		if (_php_ibase_bind(in_sqlda, args, bind_buf, ib_query) == FAILURE) {
976 			IBDEBUG("Could not bind input XSQLDA");
977 			goto _php_ibase_exec_error;
978 		}
979 	}
980 
981 	if (ib_query->statement_type == isc_info_sql_stmt_exec_procedure) {
982 		isc_result = isc_dsql_execute2(IB_STATUS, &ib_query->trans->handle,
983 			&ib_query->stmt, SQLDA_CURRENT_VERSION, in_sqlda, out_sqlda);
984 	} else {
985 		isc_result = isc_dsql_execute(IB_STATUS, &ib_query->trans->handle,
986 			&ib_query->stmt, SQLDA_CURRENT_VERSION, in_sqlda);
987 	}
988 	if (isc_result) {
989 		IBDEBUG("Could not execute query");
990 		_php_ibase_error();
991 		goto _php_ibase_exec_error;
992 	}
993 	ib_query->trans->affected_rows = 0;
994 
995 	switch (ib_query->statement_type) {
996 
997 		unsigned long affected_rows;
998 
999 		case isc_info_sql_stmt_insert:
1000 		case isc_info_sql_stmt_update:
1001 		case isc_info_sql_stmt_delete:
1002 		case isc_info_sql_stmt_exec_procedure:
1003 
1004 			if (isc_dsql_sql_info(IB_STATUS, &ib_query->stmt, sizeof(info_count),
1005 					info_count, sizeof(result), result)) {
1006 				_php_ibase_error();
1007 				goto _php_ibase_exec_error;
1008 			}
1009 
1010 			affected_rows = 0;
1011 
1012 			if (result[0] == isc_info_sql_records) {
1013 				unsigned i = 3, result_size = isc_vax_integer(&result[1],2);
1014 
1015 				while (result[i] != isc_info_end && i < result_size) {
1016 					short len = (short)isc_vax_integer(&result[i+1],2);
1017 					if (result[i] != isc_info_req_select_count) {
1018 						affected_rows += isc_vax_integer(&result[i+3],len);
1019 					}
1020 					i += len+3;
1021 				}
1022 			}
1023 
1024 			ib_query->trans->affected_rows = affected_rows;
1025 
1026 			if (!ib_query->out_sqlda) { /* no result set is being returned */
1027 				if (affected_rows) {
1028 					RETVAL_LONG(affected_rows);
1029 				} else {
1030 					RETVAL_TRUE;
1031 				}
1032 				break;
1033 			}
1034 		default:
1035 			RETVAL_TRUE;
1036 	}
1037 
1038 	rv = SUCCESS;
1039 
1040 _php_ibase_exec_error:
1041 
1042 	if (in_sqlda) {
1043 		efree(in_sqlda);
1044 	}
1045 	if (bind_buf)
1046 		efree(bind_buf);
1047 
1048 	if (rv == FAILURE) {
1049 		if (*ib_resultp) {
1050 			efree(*ib_resultp);
1051 			*ib_resultp = NULL;
1052 		}
1053 		if (out_sqlda) {
1054 			_php_ibase_free_xsqlda(out_sqlda);
1055 		}
1056 	}
1057 
1058 	return rv;
1059 }
1060 /* }}} */
1061 
1062 /* {{{ proto mixed ibase_query([resource link_identifier, [ resource link_identifier, ]] string query [, mixed bind_arg [, mixed bind_arg [, ...]]])
1063    Execute a query */
PHP_FUNCTION(ibase_query)1064 PHP_FUNCTION(ibase_query)
1065 {
1066 	zval *zlink, *ztrans, *bind_args = NULL;
1067 	char *query;
1068 	size_t query_len;
1069 	int bind_i, bind_num;
1070 	zend_resource *trans_res = NULL;
1071 	ibase_db_link *ib_link = NULL;
1072 	ibase_trans *trans = NULL;
1073 	ibase_query ib_query = { NULL, NULL, 0, 0 };
1074 	ibase_result *result = NULL;
1075 
1076 	RESET_ERRMSG;
1077 
1078 	RETVAL_FALSE;
1079 
1080 	switch (ZEND_NUM_ARGS()) {
1081 		zend_long l;
1082 
1083 		default:
1084 		    if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 3, "rrs",
1085 					&zlink, &ztrans, &query, &query_len)) {
1086 
1087 				ib_link = (ibase_db_link*)zend_fetch_resource2_ex(zlink, LE_LINK, le_link, le_plink);
1088 				trans = (ibase_trans*)zend_fetch_resource_ex(ztrans, LE_TRANS,	le_trans);
1089 
1090 				trans_res = Z_RES_P(ztrans);
1091 				bind_i = 3;
1092 				break;
1093 		    }
1094 		case 2:
1095 			if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2, "rs",
1096 					&zlink, &query, &query_len)) {
1097 				_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, zlink, &ib_link, &trans);
1098 
1099 				if (trans != NULL) {
1100 					trans_res = Z_RES_P(zlink);
1101 				}
1102 				bind_i = 2;
1103 				break;
1104 			}
1105 
1106 			/* the statement is 'CREATE DATABASE ...' if the link argument is IBASE_CREATE */
1107 			if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS(),
1108 					 "ls", &l, &query, &query_len) && l == PHP_IBASE_CREATE) {
1109 				isc_db_handle db = 0;
1110 				isc_tr_handle trans = 0;
1111 
1112 				if (((l = INI_INT("ibase.max_links")) != -1) && (IBG(num_links) >= l)) {
1113 					_php_ibase_module_error("CREATE DATABASE is not allowed: maximum link count "
1114 						"(" ZEND_LONG_FMT ") reached", l);
1115 
1116 				} else if (isc_dsql_execute_immediate(IB_STATUS, &db, &trans, (short)query_len,
1117 						query, SQL_DIALECT_CURRENT, NULL)) {
1118 					_php_ibase_error();
1119 
1120 				} else if (!db) {
1121 					_php_ibase_module_error("Connection to created database could not be "
1122 						"established");
1123 
1124 				} else {
1125 
1126 					/* register the link as a resource; unfortunately, we cannot register
1127 					   it in the hash table, because we don't know the connection params */
1128 					ib_link = (ibase_db_link *) emalloc(sizeof(ibase_db_link));
1129 					ib_link->handle = db;
1130 					ib_link->dialect = SQL_DIALECT_CURRENT;
1131 					ib_link->tr_list = NULL;
1132 					ib_link->event_head = NULL;
1133 
1134 					RETVAL_RES(zend_register_resource(ib_link, le_link));
1135 					Z_TRY_ADDREF_P(return_value);
1136 					Z_TRY_ADDREF_P(return_value);
1137 					IBG(default_link) = Z_RES_P(return_value);
1138 				}
1139 				return;
1140 			}
1141 		case 1:
1142 		case 0:
1143 			if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() ? 1 : 0, "s", &query,
1144 					&query_len)) {
1145 				ib_link = (ibase_db_link *)zend_fetch_resource2(IBG(default_link), LE_LINK, le_link, le_plink);
1146 
1147 				bind_i = 1;
1148 				break;
1149 			}
1150 			return;
1151 	}
1152 
1153 	/* open default transaction */
1154 	if (ib_link == NULL || FAILURE == _php_ibase_def_trans(ib_link, &trans)
1155 			|| FAILURE == _php_ibase_alloc_query(&ib_query, ib_link, trans, query, ib_link->dialect, trans_res)) {
1156 		return;
1157 	}
1158 
1159 	do {
1160 		int bind_n = ZEND_NUM_ARGS() - bind_i,
1161 		    expected_n = ib_query.in_sqlda ? ib_query.in_sqlda->sqld : 0;
1162 
1163 		if (bind_n != expected_n) {
1164 			php_error_docref(NULL, (bind_n < expected_n) ? E_WARNING : E_NOTICE,
1165 				"Statement expects %d arguments, %d given", expected_n, bind_n);
1166 			if (bind_n < expected_n) {
1167 				break;
1168 			}
1169 		} else if (bind_n > 0) {
1170 			if (zend_parse_parameters(ZEND_NUM_ARGS(), "+", &bind_args, &bind_num) == FAILURE) {
1171 				return;
1172 			}
1173 		}
1174 
1175 		if (FAILURE == _php_ibase_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, &result, &ib_query,
1176 				&bind_args[bind_i])) {
1177 			break;
1178 		}
1179 
1180 		if (result != NULL) { /* statement returns a result */
1181 			result->type = QUERY_RESULT;
1182 
1183 			/* EXECUTE PROCEDURE returns only one row => statement can be released immediately */
1184 			if (ib_query.statement_type != isc_info_sql_stmt_exec_procedure) {
1185 				ib_query.stmt = 0; /* keep stmt when free query */
1186 			}
1187 			RETVAL_RES(zend_register_resource(result, le_result));
1188 			Z_TRY_ADDREF_P(return_value);
1189 		}
1190 	} while (0);
1191 
1192 	_php_ibase_free_query(&ib_query);
1193 
1194 }
1195 /* }}} */
1196 
1197 /* {{{ proto int ibase_affected_rows( [ resource link_identifier ] )
1198    Returns the number of rows affected by the previous INSERT, UPDATE or DELETE statement */
PHP_FUNCTION(ibase_affected_rows)1199 PHP_FUNCTION(ibase_affected_rows)
1200 {
1201 	ibase_trans *trans = NULL;
1202 	ibase_db_link *ib_link;
1203 	zval *arg = NULL;
1204 
1205 	RESET_ERRMSG;
1206 
1207 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "|r", &arg) == FAILURE) {
1208 		return;
1209 	}
1210 
1211 	if (!arg) {
1212 		ib_link = (ibase_db_link *)zend_fetch_resource2(IBG(default_link), LE_LINK, le_link, le_plink);
1213 		if (ib_link->tr_list == NULL || ib_link->tr_list->trans == NULL) {
1214 			RETURN_FALSE;
1215 		}
1216 		trans = ib_link->tr_list->trans;
1217 	} else {
1218 		/* one id was passed, could be db or trans id */
1219 		_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, arg, &ib_link, &trans);
1220 		if (trans == NULL) {
1221 			ib_link = (ibase_db_link *)zend_fetch_resource2_ex(arg, LE_LINK, le_link, le_plink);
1222 
1223 			if (ib_link->tr_list == NULL || ib_link->tr_list->trans == NULL) {
1224 				RETURN_FALSE;
1225 			}
1226 			trans = ib_link->tr_list->trans;
1227 		}
1228 	}
1229 	RETURN_LONG(trans->affected_rows);
1230 }
1231 /* }}} */
1232 
1233 /* {{{ proto int ibase_num_rows( resource result_identifier )
1234    Return the number of rows that are available in a result */
1235 #if abies_0
PHP_FUNCTION(ibase_num_rows)1236 PHP_FUNCTION(ibase_num_rows)
1237 {
1238 	/**
1239 	 * As this function relies on the InterBase API function isc_dsql_sql_info()
1240 	 * which has a couple of limitations (which I hope will be fixed in future
1241 	 * releases of Firebird), this function is fairly useless. I'm leaving it
1242 	 * in place for people who can live with the limitations, which I only
1243 	 * found out about after I had implemented it anyway.
1244 	 *
1245 	 * Currently, there's no way to determine how many rows can be fetched from
1246 	 * a cursor. The only number that _can_ be determined is the number of rows
1247 	 * that have already been pre-fetched by the client library.
1248 	 * This implies the following:
1249 	 * - num_rows() always returns zero before the first fetch;
1250 	 * - num_rows() for SELECT ... FOR UPDATE is broken -> never returns a
1251 	 *   higher number than the number of records fetched so far (no pre-fetch);
1252 	 * - the result of num_rows() for other statements is merely a lower bound
1253 	 *   on the number of records => calling ibase_num_rows() again after a couple
1254 	 *   of fetches will most likely return a new (higher) figure for large result
1255 	 *   sets.
1256 	 */
1257 
1258 	zval *result_arg;
1259 	ibase_result *ib_result;
1260 	static char info_count[] = {isc_info_sql_records};
1261 	char result[64];
1262 
1263 	RESET_ERRMSG;
1264 
1265 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &result_arg) == FAILURE) {
1266 		return;
1267 	}
1268 
1269 	ib_result = (ibase_result *)zend_fetch_resource_ex(&result_arg, LE_RESULT, le_result);
1270 
1271 	if (isc_dsql_sql_info(IB_STATUS, &ib_result->stmt, sizeof(info_count), info_count, sizeof(result), result)) {
1272 		_php_ibase_error();
1273 		RETURN_FALSE;
1274 	}
1275 
1276 	if (result[0] == isc_info_sql_records) {
1277 		unsigned i = 3, result_size = isc_vax_integer(&result[1],2);
1278 
1279 		while (result[i] != isc_info_end && i < result_size) {
1280 			short len = (short)isc_vax_integer(&result[i+1],2);
1281 			if (result[i] == isc_info_req_select_count) {
1282 				RETURN_LONG(isc_vax_integer(&result[i+3],len));
1283 			}
1284 			i += len+3;
1285 		}
1286 	}
1287 }
1288 #endif
1289 /* }}} */
1290 
_php_ibase_var_zval(zval * val,void * data,int type,int len,int scale,int flag)1291 static int _php_ibase_var_zval(zval *val, void *data, int type, int len, /* {{{ */
1292 	int scale, int flag)
1293 {
1294 	static ISC_INT64 const scales[] = { 1, 10, 100, 1000,
1295 		10000,
1296 		100000,
1297 		1000000,
1298 		10000000,
1299 		100000000,
1300 		1000000000,
1301 		LL_LIT(10000000000),
1302 		LL_LIT(100000000000),
1303 		LL_LIT(1000000000000),
1304 		LL_LIT(10000000000000),
1305 		LL_LIT(100000000000000),
1306 		LL_LIT(1000000000000000),
1307 		LL_LIT(10000000000000000),
1308 		LL_LIT(100000000000000000),
1309 		LL_LIT(1000000000000000000)
1310 	};
1311 
1312 	switch (type & ~1) {
1313 		unsigned short l;
1314 		zend_long n;
1315 		char string_data[255];
1316 		struct tm t;
1317 		char *format;
1318 
1319 		case SQL_VARYING:
1320 			len = ((IBVARY *) data)->vary_length;
1321 			data = ((IBVARY *) data)->vary_string;
1322 			/* no break */
1323 		case SQL_TEXT:
1324 			ZVAL_STRINGL(val, (char*)data, len);
1325 			break;
1326 		case SQL_SHORT:
1327 			n = *(short *) data;
1328 			goto _sql_long;
1329 		case SQL_INT64:
1330 #if (SIZEOF_ZEND_LONG >= 8)
1331 			n = *(zend_long *) data;
1332 			goto _sql_long;
1333 #else
1334 			if (scale == 0) {
1335 				l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d", *(ISC_INT64 *) data);
1336 				ZVAL_STRINGL(val,string_data,l);
1337 			} else {
1338 				ISC_INT64 n = *(ISC_INT64 *) data, f = scales[-scale];
1339 
1340 				if (n >= 0) {
1341 					l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, n % f);
1342 				} else if (n <= -f) {
1343 					l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, -n % f);
1344 				 } else {
1345 					l = slprintf(string_data, sizeof(string_data), "-0.%0*" LL_MASK "d", -scale, -n % f);
1346 				}
1347 				ZVAL_STRINGL(val,string_data,l);
1348 			}
1349 			break;
1350 #endif
1351 		case SQL_LONG:
1352 			n = *(ISC_LONG *) data;
1353 		_sql_long:
1354 			if (scale == 0) {
1355 				ZVAL_LONG(val,n);
1356 			} else {
1357 				zend_long f = (zend_long) scales[-scale];
1358 
1359 				if (n >= 0) {
1360 					l = slprintf(string_data, sizeof(string_data), ZEND_LONG_FMT ".%0*" ZEND_LONG_FMT_SPEC, n / f, -scale,  n % f);
1361 				} else if (n <= -f) {
1362 					l = slprintf(string_data, sizeof(string_data), ZEND_LONG_FMT ".%0*" ZEND_LONG_FMT_SPEC, n / f, -scale,  -n % f);
1363 				} else {
1364 					l = slprintf(string_data, sizeof(string_data), "-0.%0*" ZEND_LONG_FMT_SPEC, -scale, -n % f);
1365 				}
1366 				ZVAL_STRINGL(val, string_data, l);
1367 			}
1368 			break;
1369 		case SQL_FLOAT:
1370 			ZVAL_DOUBLE(val, *(float *) data);
1371 			break;
1372 		case SQL_DOUBLE:
1373 			ZVAL_DOUBLE(val, *(double *) data);
1374 			break;
1375 		case SQL_DATE: /* == case SQL_TIMESTAMP: */
1376 			format = INI_STR("ibase.timestampformat");
1377 			isc_decode_timestamp((ISC_TIMESTAMP *) data, &t);
1378 			goto format_date_time;
1379 		case SQL_TYPE_DATE:
1380 			format = INI_STR("ibase.dateformat");
1381 			isc_decode_sql_date((ISC_DATE *) data, &t);
1382 			goto format_date_time;
1383 		case SQL_TYPE_TIME:
1384 			format = INI_STR("ibase.timeformat");
1385 			isc_decode_sql_time((ISC_TIME *) data, &t);
1386 
1387 format_date_time:
1388 			/*
1389 			  XXX - Might have to remove this later - seems that isc_decode_date()
1390 			   always sets tm_isdst to 0, sometimes incorrectly (InterBase 6 bug?)
1391 			*/
1392 			t.tm_isdst = -1;
1393 #if HAVE_TM_ZONE
1394 			t.tm_zone = tzname[0];
1395 #endif
1396 			if (flag & PHP_IBASE_UNIXTIME) {
1397 				ZVAL_LONG(val, mktime(&t));
1398 			} else {
1399 #if HAVE_STRFTIME
1400 				l = strftime(string_data, sizeof(string_data), format, &t);
1401 #else
1402 				switch (type & ~1) {
1403 					default:
1404 						l = slprintf(string_data, sizeof(string_data), "%02d/%02d/%4d %02d:%02d:%02d", t.tm_mon+1, t.tm_mday,
1405 							t.tm_year + 1900, t.tm_hour, t.tm_min, t.tm_sec);
1406 						break;
1407 					case SQL_TYPE_DATE:
1408 						l = slprintf(string_data, sizeof(string_data), "%02d/%02d/%4d", t.tm_mon + 1, t.tm_mday, t.tm_year+1900);
1409 						break;
1410 					case SQL_TYPE_TIME:
1411 						l = slprintf(string_data, sizeof(string_data), "%02d:%02d:%02d", t.tm_hour, t.tm_min, t.tm_sec);
1412 						break;
1413 				}
1414 #endif
1415 				ZVAL_STRINGL(val, string_data, l);
1416 				break;
1417 			}
1418 	} /* switch (type) */
1419 	return SUCCESS;
1420 }
1421 /* }}}	*/
1422 
_php_ibase_arr_zval(zval * ar_zval,char * data,zend_ulong data_size,ibase_array * ib_array,int dim,int flag)1423 static int _php_ibase_arr_zval(zval *ar_zval, char *data, zend_ulong data_size, /* {{{ */
1424 	ibase_array *ib_array, int dim, int flag)
1425 {
1426 	/**
1427 	 * Create multidimension array - recursion function
1428 	 */
1429 	int
1430 		u_bound = ib_array->ar_desc.array_desc_bounds[dim].array_bound_upper,
1431 		l_bound = ib_array->ar_desc.array_desc_bounds[dim].array_bound_lower,
1432 		dim_len = 1 + u_bound - l_bound;
1433 	unsigned short i;
1434 
1435 	if (dim < ib_array->ar_desc.array_desc_dimensions) { /* array again */
1436 		zend_ulong slice_size = data_size / dim_len;
1437 
1438 		array_init(ar_zval);
1439 
1440 		for (i = 0; i < dim_len; ++i) {
1441 			zval slice_zval;
1442 
1443 			/* recursion here */
1444 			if (FAILURE == _php_ibase_arr_zval(&slice_zval, data, slice_size, ib_array, dim + 1,
1445 					flag)) {
1446 				return FAILURE;
1447 			}
1448 			data += slice_size;
1449 
1450 			add_index_zval(ar_zval, l_bound + i, &slice_zval);
1451 		}
1452 	} else { /* data at last */
1453 
1454 		if (FAILURE == _php_ibase_var_zval(ar_zval, data, ib_array->el_type,
1455 				ib_array->ar_desc.array_desc_length, ib_array->ar_desc.array_desc_scale, flag)) {
1456 			return FAILURE;
1457 		}
1458 
1459 		/* fix for peculiar handling of VARCHAR arrays;
1460 		   truncate the field to the cstring length */
1461 		if (ib_array->ar_desc.array_desc_dtype == blr_varying ||
1462 			ib_array->ar_desc.array_desc_dtype == blr_varying2) {
1463 
1464 			Z_STRLEN_P(ar_zval) = strlen(Z_STRVAL_P(ar_zval));
1465 		}
1466 	}
1467 	return SUCCESS;
1468 }
1469 /* }}} */
1470 
_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAMETERS,int fetch_type)1471 static void _php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, int fetch_type) /* {{{ */
1472 {
1473 	zval *result_arg;
1474 	zend_long flag = 0;
1475 	zend_long i, array_cnt = 0;
1476 	ibase_result *ib_result;
1477 
1478 	RESET_ERRMSG;
1479 
1480 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r|l", &result_arg, &flag)) {
1481 		return;
1482 	}
1483 
1484 	ib_result = (ibase_result *)zend_fetch_resource_ex(result_arg, LE_RESULT, le_result);
1485 
1486 	if (ib_result->out_sqlda == NULL || !ib_result->has_more_rows) {
1487 		RETURN_FALSE;
1488 	}
1489 
1490 	if (ib_result->statement_type != isc_info_sql_stmt_exec_procedure) {
1491 		if (isc_dsql_fetch(IB_STATUS, &ib_result->stmt, 1, ib_result->out_sqlda)) {
1492 			ib_result->has_more_rows = 0;
1493 			if (IB_STATUS[0] && IB_STATUS[1]) { /* error in fetch */
1494 				_php_ibase_error();
1495 			}
1496 			RETURN_FALSE;
1497 		}
1498 	} else {
1499 		ib_result->has_more_rows = 0;
1500 	}
1501 
1502 	array_init(return_value);
1503 
1504 	for (i = 0; i < ib_result->out_sqlda->sqld; ++i) {
1505 		XSQLVAR *var = &ib_result->out_sqlda->sqlvar[i];
1506 		char buf[METADATALENGTH+4], *alias = var->aliasname;
1507 
1508 		if (! (fetch_type & FETCH_ROW)) {
1509 			int i = 0;
1510 			char const *base = "FIELD"; /* use 'FIELD' if name is empty */
1511 
1512 			/**
1513 			* Ensure no two columns have identical names:
1514 			* keep generating new names until we find one that is unique.
1515 			*/
1516 			switch (*alias) {
1517 				void *p;
1518 
1519 				default:
1520 					i = 1;
1521 					base = alias;
1522 
1523 					while ((p = zend_symtable_str_find_ptr(
1524 							Z_ARRVAL_P(return_value), alias, strlen(alias))) != NULL) {
1525 
1526 				case '\0':
1527 						snprintf(alias = buf, sizeof(buf), "%s_%02d", base, i++);
1528 					}
1529 			}
1530 		}
1531 
1532 		if (((var->sqltype & 1) == 0) || *var->sqlind != -1) {
1533 			zval result;
1534 
1535 			switch (var->sqltype & ~1) {
1536 
1537 				default:
1538 					_php_ibase_var_zval(&result, var->sqldata, var->sqltype, var->sqllen,
1539 						var->sqlscale, flag);
1540 					break;
1541 				case SQL_BLOB:
1542 					if (flag & PHP_IBASE_FETCH_BLOBS) { /* fetch blob contents into hash */
1543 
1544 						ibase_blob blob_handle;
1545 						zend_ulong max_len = 0;
1546 						static char bl_items[] = {isc_info_blob_total_length};
1547 						char bl_info[20];
1548 						unsigned short i;
1549 
1550 						blob_handle.bl_handle = 0;
1551 						blob_handle.bl_qd = *(ISC_QUAD *) var->sqldata;
1552 
1553 						if (isc_open_blob(IB_STATUS, &ib_result->link->handle, &ib_result->trans->handle,
1554 								&blob_handle.bl_handle, &blob_handle.bl_qd)) {
1555 							_php_ibase_error();
1556 							goto _php_ibase_fetch_error;
1557 						}
1558 
1559 						if (isc_blob_info(IB_STATUS, &blob_handle.bl_handle, sizeof(bl_items),
1560 								bl_items, sizeof(bl_info), bl_info)) {
1561 							_php_ibase_error();
1562 							goto _php_ibase_fetch_error;
1563 						}
1564 
1565 						/* find total length of blob's data */
1566 						for (i = 0; i < sizeof(bl_info); ) {
1567 							unsigned short item_len;
1568 							char item = bl_info[i++];
1569 
1570 							if (item == isc_info_end || item == isc_info_truncated ||
1571 								item == isc_info_error || i >= sizeof(bl_info)) {
1572 
1573 								_php_ibase_module_error("Could not determine BLOB size (internal error)"
1574 									);
1575 								goto _php_ibase_fetch_error;
1576 							}
1577 
1578 							item_len = (unsigned short) isc_vax_integer(&bl_info[i], 2);
1579 
1580 							if (item == isc_info_blob_total_length) {
1581 								max_len = isc_vax_integer(&bl_info[i+2], item_len);
1582 								break;
1583 							}
1584 							i += item_len+2;
1585 						}
1586 
1587 						if (max_len == 0) {
1588 							ZVAL_STRING(&result, "");
1589 						} else if (SUCCESS != _php_ibase_blob_get(&result, &blob_handle,
1590 								max_len)) {
1591 							goto _php_ibase_fetch_error;
1592 						}
1593 
1594 						if (isc_close_blob(IB_STATUS, &blob_handle.bl_handle)) {
1595 							_php_ibase_error();
1596 							goto _php_ibase_fetch_error;
1597 						}
1598 
1599 					} else { /* blob id only */
1600 						ISC_QUAD bl_qd = *(ISC_QUAD *) var->sqldata;
1601 						ZVAL_NEW_STR(&result, _php_ibase_quad_to_string(bl_qd));
1602 					}
1603 					break;
1604 				case SQL_ARRAY:
1605 					if (flag & PHP_IBASE_FETCH_ARRAYS) { /* array can be *huge* so only fetch if asked */
1606 						ISC_QUAD ar_qd = *(ISC_QUAD *) var->sqldata;
1607 						ibase_array *ib_array = &ib_result->out_array[array_cnt++];
1608 						void *ar_data = emalloc(ib_array->ar_size);
1609 
1610 						if (isc_array_get_slice(IB_STATUS, &ib_result->link->handle,
1611 								&ib_result->trans->handle, &ar_qd, &ib_array->ar_desc,
1612 								ar_data, &ib_array->ar_size)) {
1613 							_php_ibase_error();
1614 							efree(ar_data);
1615 							goto _php_ibase_fetch_error;
1616 						}
1617 
1618 						if (FAILURE == _php_ibase_arr_zval(&result, ar_data, ib_array->ar_size, ib_array,
1619 								0, flag)) {
1620 							efree(ar_data);
1621 							goto _php_ibase_fetch_error;
1622 						}
1623 						efree(ar_data);
1624 
1625 					} else { /* blob id only */
1626 						ISC_QUAD ar_qd = *(ISC_QUAD *) var->sqldata;
1627 						ZVAL_NEW_STR(&result, _php_ibase_quad_to_string(ar_qd));
1628 					}
1629 					break;
1630 				_php_ibase_fetch_error:
1631 					zval_ptr_dtor_nogc(&result);
1632 					RETURN_FALSE;
1633 			} /* switch */
1634 
1635 			if (fetch_type & FETCH_ROW) {
1636 				add_index_zval(return_value, i, &result);
1637 			} else {
1638 				add_assoc_zval(return_value, alias, &result);
1639 			}
1640 		} else {
1641 			if (fetch_type & FETCH_ROW) {
1642 				add_index_null(return_value, i);
1643 			} else {
1644 				add_assoc_null(return_value, alias);
1645 			}
1646 		}
1647 	} /* for field */
1648 }
1649 /* }}} */
1650 
1651 /* {{{ proto array ibase_fetch_row(resource result [, int fetch_flags])
1652    Fetch a row  from the results of a query */
PHP_FUNCTION(ibase_fetch_row)1653 PHP_FUNCTION(ibase_fetch_row)
1654 {
1655 	_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ROW);
1656 }
1657 /* }}} */
1658 
1659 /* {{{ proto array ibase_fetch_assoc(resource result [, int fetch_flags])
1660    Fetch a row  from the results of a query */
PHP_FUNCTION(ibase_fetch_assoc)1661 PHP_FUNCTION(ibase_fetch_assoc)
1662 {
1663 	_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ARRAY);
1664 }
1665 /* }}} */
1666 
1667 /* {{{ proto object ibase_fetch_object(resource result [, int fetch_flags])
1668    Fetch a object from the results of a query */
PHP_FUNCTION(ibase_fetch_object)1669 PHP_FUNCTION(ibase_fetch_object)
1670 {
1671 	_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ARRAY);
1672 
1673 	if (Z_TYPE_P(return_value) == IS_ARRAY) {
1674 		convert_to_object(return_value);
1675 	}
1676 }
1677 /* }}} */
1678 
1679 
1680 /* {{{ proto bool ibase_name_result(resource result, string name)
1681    Assign a name to a result for use with ... WHERE CURRENT OF <name> statements */
PHP_FUNCTION(ibase_name_result)1682 PHP_FUNCTION(ibase_name_result)
1683 {
1684 	zval *result_arg;
1685 	char *name_arg;
1686 	size_t name_arg_len;
1687 	ibase_result *ib_result;
1688 
1689 	RESET_ERRMSG;
1690 
1691 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "rs", &result_arg, &name_arg, &name_arg_len) == FAILURE) {
1692 		return;
1693 	}
1694 
1695 	ib_result = (ibase_result *)zend_fetch_resource_ex(result_arg, LE_RESULT, le_result);
1696 
1697 	if (isc_dsql_set_cursor_name(IB_STATUS, &ib_result->stmt, name_arg, 0)) {
1698 		_php_ibase_error();
1699 		RETURN_FALSE;
1700 	}
1701 	RETURN_TRUE;
1702 }
1703 /* }}} */
1704 
1705 
1706 /* {{{ proto bool ibase_free_result(resource result)
1707    Free the memory used by a result */
PHP_FUNCTION(ibase_free_result)1708 PHP_FUNCTION(ibase_free_result)
1709 {
1710 	zval *result_arg;
1711 	ibase_result *ib_result;
1712 
1713 	RESET_ERRMSG;
1714 
1715 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &result_arg) == FAILURE) {
1716 		return;
1717 	}
1718 
1719 	ib_result = (ibase_result *)zend_fetch_resource_ex(result_arg, LE_RESULT, le_result);
1720 	zend_list_delete(Z_RES_P(result_arg));
1721 	RETURN_TRUE;
1722 }
1723 /* }}} */
1724 
1725 /* {{{ proto resource ibase_prepare(resource link_identifier[, string query [, resource trans_identifier ]])
1726    Prepare a query for later execution */
PHP_FUNCTION(ibase_prepare)1727 PHP_FUNCTION(ibase_prepare)
1728 {
1729 	zval *link_arg, *trans_arg;
1730 	ibase_db_link *ib_link;
1731 	ibase_trans *trans = NULL;
1732 	size_t query_len;
1733 	zend_resource *trans_res = NULL;
1734 	ibase_query *ib_query;
1735 	char *query;
1736 
1737 	RESET_ERRMSG;
1738 
1739 	if (ZEND_NUM_ARGS() == 1) {
1740 		if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &query, &query_len) == FAILURE) {
1741 			return;
1742 		}
1743 		ib_link = (ibase_db_link *)zend_fetch_resource2(IBG(default_link), LE_LINK, le_link, le_plink);
1744 	} else if (ZEND_NUM_ARGS() == 2) {
1745 		if (zend_parse_parameters(ZEND_NUM_ARGS(), "rs", &link_arg, &query, &query_len) == FAILURE) {
1746 			return;
1747 		}
1748 		_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, link_arg, &ib_link, &trans);
1749 
1750 		if (trans != NULL) {
1751 			trans_res = Z_RES_P(link_arg);
1752 		}
1753 	} else {
1754 		if (zend_parse_parameters(ZEND_NUM_ARGS(), "rrs", &link_arg, &trans_arg, &query, &query_len) == FAILURE) {
1755 			return;
1756 		}
1757 		ib_link = (ibase_db_link *)zend_fetch_resource2_ex(link_arg, LE_LINK, le_link, le_plink);
1758 		trans = (ibase_trans *)zend_fetch_resource_ex(trans_arg, LE_TRANS, le_trans);
1759 		trans_res = Z_RES_P(trans_arg);
1760 	}
1761 
1762 	if (FAILURE == _php_ibase_def_trans(ib_link, &trans)) {
1763 		RETURN_FALSE;
1764 	}
1765 
1766 	ib_query = (ibase_query *) emalloc(sizeof(ibase_query));
1767 
1768 	if (FAILURE == _php_ibase_alloc_query(ib_query, ib_link, trans, query, ib_link->dialect, trans_res)) {
1769 		efree(ib_query);
1770 		RETURN_FALSE;
1771 	}
1772 	RETVAL_RES(zend_register_resource(ib_query, le_query));
1773 	Z_TRY_ADDREF_P(return_value);
1774 }
1775 /* }}} */
1776 
1777 /* {{{ proto mixed ibase_execute(resource query [, mixed bind_arg [, mixed bind_arg [, ...]]])
1778    Execute a previously prepared query */
PHP_FUNCTION(ibase_execute)1779 PHP_FUNCTION(ibase_execute)
1780 {
1781 	zval *query, *args = NULL;
1782 	ibase_query *ib_query;
1783 	ibase_result *result = NULL;
1784 	int bind_n = 0;
1785 
1786 	RESET_ERRMSG;
1787 
1788 	RETVAL_FALSE;
1789 
1790 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "|r*", &query, &args, &bind_n)) {
1791 		return;
1792 	}
1793 
1794 	ib_query = (ibase_query *)zend_fetch_resource_ex(query, LE_QUERY, le_query);
1795 
1796 	do {
1797 		int	expected_n = ib_query->in_sqlda ? ib_query->in_sqlda->sqld : 0;
1798 
1799 		if (bind_n != expected_n) {
1800 			php_error_docref(NULL, (bind_n < expected_n) ? E_WARNING : E_NOTICE,
1801 				"Statement expects %d arguments, %d given", expected_n, bind_n);
1802 
1803 			if (bind_n < expected_n) {
1804 				break;
1805 			}
1806 		}
1807 
1808 		/* Have we used this cursor before and it's still open (exec proc has no cursor) ? */
1809 		if (ib_query->result_res != NULL
1810 				&& ib_query->statement_type != isc_info_sql_stmt_exec_procedure) {
1811 			IBDEBUG("Implicitly closing a cursor");
1812 
1813 			if (isc_dsql_free_statement(IB_STATUS, &ib_query->stmt, DSQL_close)) {
1814 				_php_ibase_error();
1815 				break;
1816 			}
1817 			zend_list_delete(ib_query->result_res);
1818 			ib_query->result_res = NULL;
1819 		}
1820 
1821 		if (FAILURE == _php_ibase_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, &result, ib_query,
1822 				args)) {
1823 		    break;
1824 		}
1825 
1826 		/* free the query if trans handle was released */
1827 		if (ib_query->trans->handle == 0) {
1828 			zend_list_delete(Z_RES_P(query));
1829 		}
1830 
1831 		if (result != NULL) {
1832 			zval *ret;
1833 
1834 			result->type = EXECUTE_RESULT;
1835 			if (ib_query->statement_type == isc_info_sql_stmt_exec_procedure) {
1836 				result->stmt = 0;
1837 			}
1838 
1839 			ret = zend_list_insert(result, le_result);
1840 			ib_query->result_res = Z_RES_P(ret);
1841 			ZVAL_COPY_VALUE(return_value, ret);
1842 			Z_TRY_ADDREF_P(return_value);
1843 			Z_TRY_ADDREF_P(return_value);
1844 		}
1845 	} while (0);
1846 }
1847 /* }}} */
1848 
1849 /* {{{ proto bool ibase_free_query(resource query)
1850    Free memory used by a query */
PHP_FUNCTION(ibase_free_query)1851 PHP_FUNCTION(ibase_free_query)
1852 {
1853 	zval *query_arg;
1854 	ibase_query *ib_query;
1855 
1856 	RESET_ERRMSG;
1857 
1858 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &query_arg) == FAILURE) {
1859 		return;
1860 	}
1861 
1862 	ib_query = (ibase_query *)zend_fetch_resource_ex(query_arg, LE_QUERY, le_query);
1863 	if (!ib_query) {
1864 		RETURN_FALSE;
1865 	}
1866 
1867 	zend_list_close(Z_RES_P(query_arg));
1868 	RETURN_TRUE;
1869 }
1870 /* }}} */
1871 
1872 /* {{{ proto int ibase_num_fields(resource query_result)
1873    Get the number of fields in result */
PHP_FUNCTION(ibase_num_fields)1874 PHP_FUNCTION(ibase_num_fields)
1875 {
1876 	zval *result;
1877 	int type;
1878 	XSQLDA *sqlda;
1879 
1880 	RESET_ERRMSG;
1881 
1882 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &result) == FAILURE) {
1883 		return;
1884 	}
1885 
1886 	type = Z_RES_P(result)->type;
1887 
1888 	if (type == le_query) {
1889 		ibase_query *ib_query;
1890 
1891 		ib_query = (ibase_query *)zend_fetch_resource_ex(result, LE_QUERY, le_query);
1892 		sqlda = ib_query->out_sqlda;
1893 	} else {
1894 		ibase_result *ib_result;
1895 
1896 		ib_result = (ibase_result *)zend_fetch_resource_ex(result, LE_RESULT, le_result);
1897 		sqlda = ib_result->out_sqlda;
1898 	}
1899 
1900 	if (sqlda == NULL) {
1901 		RETURN_LONG(0);
1902 	} else {
1903 		RETURN_LONG(sqlda->sqld);
1904 	}
1905 }
1906 /* }}} */
1907 
_php_ibase_field_info(zval * return_value,XSQLVAR * var)1908 static void _php_ibase_field_info(zval *return_value, XSQLVAR *var) /* {{{ */
1909 {
1910 	unsigned short len;
1911 	char buf[16], *s = buf;
1912 
1913 	array_init(return_value);
1914 
1915 	add_index_stringl(return_value, 0, var->sqlname, var->sqlname_length);
1916 	add_assoc_stringl(return_value, "name", var->sqlname, var->sqlname_length);
1917 
1918 	add_index_stringl(return_value, 1, var->aliasname, var->aliasname_length);
1919 	add_assoc_stringl(return_value, "alias", var->aliasname, var->aliasname_length);
1920 
1921 	add_index_stringl(return_value, 2, var->relname, var->relname_length);
1922 	add_assoc_stringl(return_value, "relation", var->relname, var->relname_length);
1923 
1924 	len = slprintf(buf, 16, "%d", var->sqllen);
1925 	add_index_stringl(return_value, 3, buf, len);
1926 	add_assoc_stringl(return_value, "length", buf, len);
1927 
1928 	if (var->sqlscale < 0) {
1929 		unsigned short precision = 0;
1930 
1931 		switch (var->sqltype & ~1) {
1932 
1933 			case SQL_SHORT:
1934 				precision = 4;
1935 				break;
1936 			case SQL_LONG:
1937 				precision = 9;
1938 				break;
1939 			case SQL_INT64:
1940 				precision = 18;
1941 				break;
1942 		}
1943 		len = slprintf(buf, 16, "NUMERIC(%d,%d)", precision, -var->sqlscale);
1944 		add_index_stringl(return_value, 4, s, len);
1945 		add_assoc_stringl(return_value, "type", s, len);
1946 	} else {
1947 		switch (var->sqltype & ~1) {
1948 			case SQL_TEXT:
1949 				s = "CHAR";
1950 				break;
1951 			case SQL_VARYING:
1952 				s = "VARCHAR";
1953 				break;
1954 			case SQL_SHORT:
1955 				s = "SMALLINT";
1956 				break;
1957 			case SQL_LONG:
1958 				s = "INTEGER";
1959 				break;
1960 			case SQL_FLOAT:
1961 				s = "FLOAT"; break;
1962 			case SQL_DOUBLE:
1963 			case SQL_D_FLOAT:
1964 				s = "DOUBLE PRECISION"; break;
1965 			case SQL_INT64:
1966 				s = "BIGINT";
1967 				break;
1968 			case SQL_TIMESTAMP:
1969 				s = "TIMESTAMP";
1970 				break;
1971 			case SQL_TYPE_DATE:
1972 				s = "DATE";
1973 				break;
1974 			case SQL_TYPE_TIME:
1975 				s = "TIME";
1976 				break;
1977 			case SQL_BLOB:
1978 				s = "BLOB";
1979 				break;
1980 			case SQL_ARRAY:
1981 				s = "ARRAY";
1982 				break;
1983 				/* FIXME: provide more detailed information about the field type, field size
1984 				 * and array dimensions */
1985 			case SQL_QUAD:
1986 				s = "QUAD";
1987 				break;
1988 		}
1989 		add_index_string(return_value, 4, s);
1990 		add_assoc_string(return_value, "type", s);
1991 	}
1992 }
1993 /* }}} */
1994 
1995 /* {{{ proto array ibase_field_info(resource query_result, int field_number)
1996    Get information about a field */
PHP_FUNCTION(ibase_field_info)1997 PHP_FUNCTION(ibase_field_info)
1998 {
1999 	zval *result_arg;
2000 	zend_long field_arg;
2001 	int type;
2002 	XSQLDA *sqlda;
2003 
2004 	RESET_ERRMSG;
2005 
2006 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "rl", &result_arg, &field_arg) == FAILURE) {
2007 		return;
2008 	}
2009 
2010 	type = Z_RES_P(result_arg)->type;
2011 
2012 	if (type == le_query) {
2013 		ibase_query *ib_query;
2014 
2015 		ib_query= (ibase_query *)zend_fetch_resource_ex(result_arg, LE_QUERY, le_query);
2016 		sqlda = ib_query->out_sqlda;
2017 	} else {
2018 		ibase_result *ib_result;
2019 
2020 		ib_result = (ibase_result *)zend_fetch_resource_ex(result_arg, LE_RESULT, le_result);
2021 		sqlda = ib_result->out_sqlda;
2022 	}
2023 
2024 	if (sqlda == NULL) {
2025 		_php_ibase_module_error("Trying to get field info from a non-select query");
2026 		RETURN_FALSE;
2027 	}
2028 
2029 	if (field_arg < 0 || field_arg >= sqlda->sqld) {
2030 		RETURN_FALSE;
2031 	}
2032 	_php_ibase_field_info(return_value, sqlda->sqlvar + field_arg);
2033 }
2034 /* }}} */
2035 
2036 /* {{{ proto int ibase_num_params(resource query)
2037    Get the number of params in a prepared query */
PHP_FUNCTION(ibase_num_params)2038 PHP_FUNCTION(ibase_num_params)
2039 {
2040 	zval *result;
2041 	ibase_query *ib_query;
2042 
2043 	RESET_ERRMSG;
2044 
2045 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &result) == FAILURE) {
2046 		return;
2047 	}
2048 
2049 	ib_query = (ibase_query *)zend_fetch_resource_ex(result, LE_QUERY, le_query);
2050 
2051 	if (ib_query->in_sqlda == NULL) {
2052 		RETURN_LONG(0);
2053 	} else {
2054 		RETURN_LONG(ib_query->in_sqlda->sqld);
2055 	}
2056 }
2057 /* }}} */
2058 
2059 /* {{{ proto array ibase_param_info(resource query, int field_number)
2060    Get information about a parameter */
PHP_FUNCTION(ibase_param_info)2061 PHP_FUNCTION(ibase_param_info)
2062 {
2063 	zval *result_arg;
2064 	zend_long field_arg;
2065 	ibase_query *ib_query;
2066 
2067 	RESET_ERRMSG;
2068 
2069 	if (zend_parse_parameters(ZEND_NUM_ARGS(), "rl", &result_arg, &field_arg) == FAILURE) {
2070 		return;
2071 	}
2072 
2073 	ib_query = (ibase_query *)zend_fetch_resource_ex(result_arg, LE_QUERY, le_query);
2074 
2075 	if (ib_query->in_sqlda == NULL) {
2076 		RETURN_FALSE;
2077 	}
2078 
2079 	if (field_arg < 0 || field_arg >= ib_query->in_sqlda->sqld) {
2080 		RETURN_FALSE;
2081 	}
2082 
2083 	_php_ibase_field_info(return_value,ib_query->in_sqlda->sqlvar + field_arg);
2084 }
2085 /* }}} */
2086 
2087 #endif /* HAVE_IBASE */
2088 
2089 /*
2090  * Local variables:
2091  * tab-width: 4
2092  * c-basic-offset: 4
2093  * End:
2094  * vim600: sw=4 ts=4 fdm=marker
2095  * vim<600: sw=4 ts=4
2096  */
2097