1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Sascha Schumann <sascha@schumann.cx> |
16 | Marcus Boerger <helly@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "php.h"
25
26 #if HAVE_DBA
27
28 #include "php_ini.h"
29 #include <stdio.h>
30 #include <fcntl.h>
31 #ifdef HAVE_SYS_FILE_H
32 #include <sys/file.h>
33 #endif
34
35 #include "php_dba.h"
36 #include "ext/standard/info.h"
37 #include "ext/standard/php_string.h"
38 #include "ext/standard/flock_compat.h"
39
40 #include "php_gdbm.h"
41 #include "php_ndbm.h"
42 #include "php_dbm.h"
43 #include "php_cdb.h"
44 #include "php_db1.h"
45 #include "php_db2.h"
46 #include "php_db3.h"
47 #include "php_db4.h"
48 #include "php_flatfile.h"
49 #include "php_inifile.h"
50 #include "php_qdbm.h"
51 #include "php_tcadb.h"
52 #include "php_lmdb.h"
53
54 /* {{{ arginfo */
55 ZEND_BEGIN_ARG_INFO_EX(arginfo_dba_popen, 0, 0, 2)
56 ZEND_ARG_INFO(0, path)
57 ZEND_ARG_INFO(0, mode)
58 ZEND_ARG_INFO(0, handlername)
59 ZEND_ARG_VARIADIC_INFO(0, handler_parameters)
60 ZEND_END_ARG_INFO()
61
62 ZEND_BEGIN_ARG_INFO_EX(arginfo_dba_open, 0, 0, 2)
63 ZEND_ARG_INFO(0, path)
64 ZEND_ARG_INFO(0, mode)
65 ZEND_ARG_INFO(0, handlername)
66 ZEND_ARG_VARIADIC_INFO(0, handler_parameters)
67 ZEND_END_ARG_INFO()
68
69 ZEND_BEGIN_ARG_INFO(arginfo_dba_close, 0)
70 ZEND_ARG_INFO(0, handle)
71 ZEND_END_ARG_INFO()
72
73 ZEND_BEGIN_ARG_INFO(arginfo_dba_exists, 0)
74 ZEND_ARG_INFO(0, key)
75 ZEND_ARG_INFO(0, handle)
76 ZEND_END_ARG_INFO()
77
78 ZEND_BEGIN_ARG_INFO_EX(arginfo_dba_fetch, 0, 0, 2)
79 ZEND_ARG_INFO(0, key)
80 ZEND_ARG_INFO(0, skip)
81 ZEND_ARG_INFO(0, handle)
82 ZEND_END_ARG_INFO()
83
84 ZEND_BEGIN_ARG_INFO(arginfo_dba_key_split, 0)
85 ZEND_ARG_INFO(0, key)
86 ZEND_END_ARG_INFO()
87
88 ZEND_BEGIN_ARG_INFO(arginfo_dba_firstkey, 0)
89 ZEND_ARG_INFO(0, handle)
90 ZEND_END_ARG_INFO()
91
92 ZEND_BEGIN_ARG_INFO(arginfo_dba_nextkey, 0)
93 ZEND_ARG_INFO(0, handle)
94 ZEND_END_ARG_INFO()
95
96 ZEND_BEGIN_ARG_INFO(arginfo_dba_delete, 0)
97 ZEND_ARG_INFO(0, key)
98 ZEND_ARG_INFO(0, handle)
99 ZEND_END_ARG_INFO()
100
101 ZEND_BEGIN_ARG_INFO(arginfo_dba_insert, 0)
102 ZEND_ARG_INFO(0, key)
103 ZEND_ARG_INFO(0, value)
104 ZEND_ARG_INFO(0, handle)
105 ZEND_END_ARG_INFO()
106
107 ZEND_BEGIN_ARG_INFO(arginfo_dba_replace, 0)
108 ZEND_ARG_INFO(0, key)
109 ZEND_ARG_INFO(0, value)
110 ZEND_ARG_INFO(0, handle)
111 ZEND_END_ARG_INFO()
112
113 ZEND_BEGIN_ARG_INFO(arginfo_dba_optimize, 0)
114 ZEND_ARG_INFO(0, handle)
115 ZEND_END_ARG_INFO()
116
117 ZEND_BEGIN_ARG_INFO(arginfo_dba_sync, 0)
118 ZEND_ARG_INFO(0, handle)
119 ZEND_END_ARG_INFO()
120
121 ZEND_BEGIN_ARG_INFO_EX(arginfo_dba_handlers, 0, 0, 0)
122 ZEND_ARG_INFO(0, full_info)
123 ZEND_END_ARG_INFO()
124
125 ZEND_BEGIN_ARG_INFO(arginfo_dba_list, 0)
126 ZEND_END_ARG_INFO()
127
128 /* }}} */
129
130 /* {{{ dba_functions[]
131 */
132 static const zend_function_entry dba_functions[] = {
133 PHP_FE(dba_open, arginfo_dba_open)
134 PHP_FE(dba_popen, arginfo_dba_popen)
135 PHP_FE(dba_close, arginfo_dba_close)
136 PHP_FE(dba_delete, arginfo_dba_delete)
137 PHP_FE(dba_exists, arginfo_dba_exists)
138 PHP_FE(dba_fetch, arginfo_dba_fetch)
139 PHP_FE(dba_insert, arginfo_dba_insert)
140 PHP_FE(dba_replace, arginfo_dba_replace)
141 PHP_FE(dba_firstkey, arginfo_dba_firstkey)
142 PHP_FE(dba_nextkey, arginfo_dba_nextkey)
143 PHP_FE(dba_optimize, arginfo_dba_optimize)
144 PHP_FE(dba_sync, arginfo_dba_sync)
145 PHP_FE(dba_handlers, arginfo_dba_handlers)
146 PHP_FE(dba_list, arginfo_dba_list)
147 PHP_FE(dba_key_split, arginfo_dba_key_split)
148 PHP_FE_END
149 };
150 /* }}} */
151
152 PHP_MINIT_FUNCTION(dba);
153 PHP_MSHUTDOWN_FUNCTION(dba);
154 PHP_MINFO_FUNCTION(dba);
155
156 ZEND_BEGIN_MODULE_GLOBALS(dba)
157 char *default_handler;
158 dba_handler *default_hptr;
159 ZEND_END_MODULE_GLOBALS(dba)
160
161 ZEND_DECLARE_MODULE_GLOBALS(dba)
162
163 #define DBA_G(v) ZEND_MODULE_GLOBALS_ACCESSOR(dba, v)
164
165 static PHP_GINIT_FUNCTION(dba);
166
167 zend_module_entry dba_module_entry = {
168 STANDARD_MODULE_HEADER,
169 "dba",
170 dba_functions,
171 PHP_MINIT(dba),
172 PHP_MSHUTDOWN(dba),
173 NULL,
174 NULL,
175 PHP_MINFO(dba),
176 PHP_DBA_VERSION,
177 PHP_MODULE_GLOBALS(dba),
178 PHP_GINIT(dba),
179 NULL,
180 NULL,
181 STANDARD_MODULE_PROPERTIES_EX
182 };
183
184 #ifdef COMPILE_DL_DBA
185 #ifdef ZTS
186 ZEND_TSRMLS_CACHE_DEFINE()
187 #endif
ZEND_GET_MODULE(dba)188 ZEND_GET_MODULE(dba)
189 #endif
190
191 /* {{{ macromania */
192
193 #define DBA_ID_PARS \
194 zval *id; \
195 dba_info *info = NULL; \
196 int ac = ZEND_NUM_ARGS()
197
198 /* these are used to get the standard arguments */
199
200 /* {{{ php_dba_myke_key */
201 static size_t php_dba_make_key(zval *key, char **key_str, char **key_free)
202 {
203 if (Z_TYPE_P(key) == IS_ARRAY) {
204 zval *group, *name;
205 HashPosition pos;
206 size_t len;
207
208 if (zend_hash_num_elements(Z_ARRVAL_P(key)) != 2) {
209 zend_throw_error(NULL, "Key does not have exactly two elements: (key, name)");
210 return 0;
211 }
212 zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(key), &pos);
213 group = zend_hash_get_current_data_ex(Z_ARRVAL_P(key), &pos);
214 zend_hash_move_forward_ex(Z_ARRVAL_P(key), &pos);
215 name = zend_hash_get_current_data_ex(Z_ARRVAL_P(key), &pos);
216 convert_to_string_ex(group);
217 convert_to_string_ex(name);
218 if (Z_STRLEN_P(group) == 0) {
219 *key_str = Z_STRVAL_P(name);
220 *key_free = NULL;
221 return Z_STRLEN_P(name);
222 }
223 len = spprintf(key_str, 0, "[%s]%s", Z_STRVAL_P(group), Z_STRVAL_P(name));
224 *key_free = *key_str;
225 return len;
226 } else {
227 zval tmp;
228 size_t len;
229
230 ZVAL_COPY(&tmp, key);
231 convert_to_string(&tmp);
232
233 len = Z_STRLEN(tmp);
234 if (len) {
235 *key_free = *key_str = estrndup(Z_STRVAL(tmp), Z_STRLEN(tmp));
236 }
237 zval_ptr_dtor(&tmp);
238 return len;
239 }
240 }
241 /* }}} */
242
243 #define DBA_GET2 \
244 zval *key; \
245 char *key_str, *key_free; \
246 size_t key_len; \
247 if (zend_parse_parameters(ac, "zr", &key, &id) == FAILURE) { \
248 return; \
249 } \
250 if ((key_len = php_dba_make_key(key, &key_str, &key_free)) == 0) {\
251 RETURN_FALSE; \
252 }
253
254 #define DBA_GET2_3 \
255 zval *key; \
256 char *key_str, *key_free; \
257 size_t key_len; \
258 zend_long skip = 0; \
259 switch(ac) { \
260 case 2: \
261 if (zend_parse_parameters(ac, "zr", &key, &id) == FAILURE) { \
262 return; \
263 } \
264 break; \
265 case 3: \
266 if (zend_parse_parameters(ac, "zlr", &key, &skip, &id) == FAILURE) { \
267 return; \
268 } \
269 break; \
270 default: \
271 WRONG_PARAM_COUNT; \
272 } \
273 if ((key_len = php_dba_make_key(key, &key_str, &key_free)) == 0) {\
274 RETURN_FALSE; \
275 }
276
277
278 #define DBA_FETCH_RESOURCE(info, id) \
279 if ((info = (dba_info *)zend_fetch_resource2(Z_RES_P(id), "DBA identifier", le_db, le_pdb)) == NULL) { \
280 RETURN_FALSE; \
281 }
282
283 #define DBA_FETCH_RESOURCE_WITH_ID(info, id) \
284 if ((info = (dba_info *)zend_fetch_resource2(Z_RES_P(id), "DBA identifier", le_db, le_pdb)) == NULL) { \
285 DBA_ID_DONE; \
286 RETURN_FALSE; \
287 }
288
289 #define DBA_ID_GET2 DBA_ID_PARS; DBA_GET2; DBA_FETCH_RESOURCE_WITH_ID(info, id)
290 #define DBA_ID_GET2_3 DBA_ID_PARS; DBA_GET2_3; DBA_FETCH_RESOURCE_WITH_ID(info, id)
291
292 #define DBA_ID_DONE \
293 if (key_free) efree(key_free)
294 /* a DBA handler must have specific routines */
295
296 #define DBA_NAMED_HND(alias, name, flags) \
297 {\
298 #alias, flags, dba_open_##name, dba_close_##name, dba_fetch_##name, dba_update_##name, \
299 dba_exists_##name, dba_delete_##name, dba_firstkey_##name, dba_nextkey_##name, \
300 dba_optimize_##name, dba_sync_##name, dba_info_##name \
301 },
302
303 #define DBA_HND(name, flags) DBA_NAMED_HND(name, name, flags)
304
305 /* check whether the user has write access */
306 #define DBA_WRITE_CHECK \
307 if(info->mode != DBA_WRITER && info->mode != DBA_TRUNC && info->mode != DBA_CREAT) { \
308 php_error_docref(NULL, E_WARNING, "You cannot perform a modification to a database without proper access"); \
309 RETURN_FALSE; \
310 }
311
312 /* the same check, but with a call to DBA_ID_DONE before returning */
313 #define DBA_WRITE_CHECK_WITH_ID \
314 if(info->mode != DBA_WRITER && info->mode != DBA_TRUNC && info->mode != DBA_CREAT) { \
315 php_error_docref(NULL, E_WARNING, "You cannot perform a modification to a database without proper access"); \
316 DBA_ID_DONE; \
317 RETURN_FALSE; \
318 }
319
320 /* }}} */
321
322 /* {{{ globals */
323
324 static dba_handler handler[] = {
325 #if DBA_GDBM
326 DBA_HND(gdbm, DBA_LOCK_EXT) /* Locking done in library if set */
327 #endif
328 #if DBA_DBM
329 DBA_HND(dbm, DBA_LOCK_ALL) /* No lock in lib */
330 #endif
331 #if DBA_NDBM
332 DBA_HND(ndbm, DBA_LOCK_ALL) /* Could be done in library: filemode = 0644 + S_ENFMT */
333 #endif
334 #if DBA_CDB
335 DBA_HND(cdb, DBA_STREAM_OPEN|DBA_LOCK_ALL) /* No lock in lib */
336 #endif
337 #if DBA_CDB_BUILTIN
338 DBA_NAMED_HND(cdb_make, cdb, DBA_STREAM_OPEN|DBA_LOCK_ALL) /* No lock in lib */
339 #endif
340 #if DBA_DB1
341 DBA_HND(db1, DBA_LOCK_ALL) /* No lock in lib */
342 #endif
343 #if DBA_DB2
344 DBA_HND(db2, DBA_LOCK_ALL) /* No lock in lib */
345 #endif
346 #if DBA_DB3
347 DBA_HND(db3, DBA_LOCK_ALL) /* No lock in lib */
348 #endif
349 #if DBA_DB4
350 DBA_HND(db4, DBA_LOCK_ALL) /* No lock in lib */
351 #endif
352 #if DBA_INIFILE
353 DBA_HND(inifile, DBA_STREAM_OPEN|DBA_LOCK_ALL|DBA_CAST_AS_FD) /* No lock in lib */
354 #endif
355 #if DBA_FLATFILE
356 DBA_HND(flatfile, DBA_STREAM_OPEN|DBA_LOCK_ALL|DBA_NO_APPEND) /* No lock in lib */
357 #endif
358 #if DBA_QDBM
359 DBA_HND(qdbm, DBA_LOCK_EXT)
360 #endif
361 #if DBA_TCADB
362 DBA_HND(tcadb, DBA_LOCK_ALL)
363 #endif
364 #if DBA_LMDB
365 DBA_HND(lmdb, DBA_LOCK_EXT)
366 #endif
367 { NULL, 0, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
368 };
369
370 #if DBA_FLATFILE
371 #define DBA_DEFAULT "flatfile"
372 #elif DBA_DB4
373 #define DBA_DEFAULT "db4"
374 #elif DBA_DB3
375 #define DBA_DEFAULT "db3"
376 #elif DBA_DB2
377 #define DBA_DEFAULT "db2"
378 #elif DBA_DB1
379 #define DBA_DEFAULT "db1"
380 #elif DBA_GDBM
381 #define DBA_DEFAULT "gdbm"
382 #elif DBA_NBBM
383 #define DBA_DEFAULT "ndbm"
384 #elif DBA_DBM
385 #define DBA_DEFAULT "dbm"
386 #elif DBA_QDBM
387 #define DBA_DEFAULT "qdbm"
388 #elif DBA_TCADB
389 #define DBA_DEFAULT "tcadb"
390 #elif DBA_LMDB
391 #define DBA_DEFAULT "lmdb"
392 #else
393 #define DBA_DEFAULT ""
394 #endif
395 /* cdb/cdb_make and ini are no option here */
396
397 static int le_db;
398 static int le_pdb;
399 /* }}} */
400
401 /* {{{ dba_fetch_resource
402 PHPAPI void dba_fetch_resource(dba_info **pinfo, zval **id)
403 {
404 dba_info *info;
405 DBA_ID_FETCH
406 *pinfo = info;
407 }
408 */
409 /* }}} */
410
411 /* {{{ dba_get_handler
412 PHPAPI dba_handler *dba_get_handler(const char* handler_name)
413 {
414 dba_handler *hptr;
415 for (hptr = handler; hptr->name && strcasecmp(hptr->name, handler_name); hptr++);
416 return hptr;
417 }
418 */
419 /* }}} */
420
421 /* {{{ dba_close
422 */
dba_close(dba_info * info)423 static void dba_close(dba_info *info)
424 {
425 if (info->hnd) {
426 info->hnd->close(info);
427 }
428 if (info->path) {
429 pefree(info->path, info->flags&DBA_PERSISTENT);
430 }
431 if (info->fp && info->fp != info->lock.fp) {
432 if (info->flags & DBA_PERSISTENT) {
433 php_stream_pclose(info->fp);
434 } else {
435 php_stream_close(info->fp);
436 }
437 }
438 if (info->lock.fp) {
439 if (info->flags & DBA_PERSISTENT) {
440 php_stream_pclose(info->lock.fp);
441 } else {
442 php_stream_close(info->lock.fp);
443 }
444 }
445 if (info->lock.name) {
446 pefree(info->lock.name, info->flags&DBA_PERSISTENT);
447 }
448 pefree(info, info->flags&DBA_PERSISTENT);
449 }
450 /* }}} */
451
452 /* {{{ dba_close_rsrc
453 */
dba_close_rsrc(zend_resource * rsrc)454 static void dba_close_rsrc(zend_resource *rsrc)
455 {
456 dba_info *info = (dba_info *)rsrc->ptr;
457
458 dba_close(info);
459 }
460 /* }}} */
461
462 /* {{{ dba_close_pe_rsrc_deleter */
dba_close_pe_rsrc_deleter(zval * el,void * pDba)463 int dba_close_pe_rsrc_deleter(zval *el, void *pDba)
464 {
465 if (Z_RES_P(el)->ptr == pDba) {
466 if (Z_DELREF_P(el) == 0) {
467 return ZEND_HASH_APPLY_REMOVE;
468 } else {
469 return ZEND_HASH_APPLY_KEEP | ZEND_HASH_APPLY_STOP;
470 }
471 } else {
472 return ZEND_HASH_APPLY_KEEP;
473 }
474 }
475 /* }}} */
476
477 /* {{{ dba_close_pe_rsrc */
dba_close_pe_rsrc(zend_resource * rsrc)478 static void dba_close_pe_rsrc(zend_resource *rsrc)
479 {
480 dba_info *info = (dba_info *)rsrc->ptr;
481
482 /* closes the resource by calling dba_close_rsrc() */
483 zend_hash_apply_with_argument(&EG(persistent_list), dba_close_pe_rsrc_deleter, info);
484 }
485 /* }}} */
486
487 /* {{{ PHP_INI
488 */
ZEND_INI_MH(OnUpdateDefaultHandler)489 ZEND_INI_MH(OnUpdateDefaultHandler)
490 {
491 dba_handler *hptr;
492
493 if (!ZSTR_LEN(new_value)) {
494 DBA_G(default_hptr) = NULL;
495 return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
496 }
497
498 for (hptr = handler; hptr->name && strcasecmp(hptr->name, ZSTR_VAL(new_value)); hptr++);
499
500 if (!hptr->name) {
501 php_error_docref(NULL, E_WARNING, "No such handler: %s", ZSTR_VAL(new_value));
502 return FAILURE;
503 }
504 DBA_G(default_hptr) = hptr;
505 return OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
506 }
507
508 PHP_INI_BEGIN()
509 STD_PHP_INI_ENTRY("dba.default_handler", DBA_DEFAULT, PHP_INI_ALL, OnUpdateDefaultHandler, default_handler, zend_dba_globals, dba_globals)
PHP_INI_END()510 PHP_INI_END()
511 /* }}} */
512
513 /* {{{ PHP_GINIT_FUNCTION
514 */
515 static PHP_GINIT_FUNCTION(dba)
516 {
517 #if defined(COMPILE_DL_DBA) && defined(ZTS)
518 ZEND_TSRMLS_CACHE_UPDATE();
519 #endif
520 dba_globals->default_handler = "";
521 dba_globals->default_hptr = NULL;
522 }
523 /* }}} */
524
525 /* {{{ PHP_MINIT_FUNCTION
526 */
PHP_MINIT_FUNCTION(dba)527 PHP_MINIT_FUNCTION(dba)
528 {
529 REGISTER_INI_ENTRIES();
530 le_db = zend_register_list_destructors_ex(dba_close_rsrc, NULL, "dba", module_number);
531 le_pdb = zend_register_list_destructors_ex(dba_close_pe_rsrc, dba_close_rsrc, "dba persistent", module_number);
532 return SUCCESS;
533 }
534 /* }}} */
535
536 /* {{{ PHP_MSHUTDOWN_FUNCTION
537 */
PHP_MSHUTDOWN_FUNCTION(dba)538 PHP_MSHUTDOWN_FUNCTION(dba)
539 {
540 UNREGISTER_INI_ENTRIES();
541 return SUCCESS;
542 }
543 /* }}} */
544
545 #include "zend_smart_str.h"
546
547 /* {{{ PHP_MINFO_FUNCTION
548 */
PHP_MINFO_FUNCTION(dba)549 PHP_MINFO_FUNCTION(dba)
550 {
551 dba_handler *hptr;
552 smart_str handlers = {0};
553
554 for(hptr = handler; hptr->name; hptr++) {
555 smart_str_appends(&handlers, hptr->name);
556 smart_str_appendc(&handlers, ' ');
557 }
558
559 php_info_print_table_start();
560 php_info_print_table_row(2, "DBA support", "enabled");
561 if (handlers.s) {
562 smart_str_0(&handlers);
563 php_info_print_table_row(2, "Supported handlers", ZSTR_VAL(handlers.s));
564 smart_str_free(&handlers);
565 } else {
566 php_info_print_table_row(2, "Supported handlers", "none");
567 }
568 php_info_print_table_end();
569 DISPLAY_INI_ENTRIES();
570 }
571 /* }}} */
572
573 /* {{{ php_dba_update
574 */
php_dba_update(INTERNAL_FUNCTION_PARAMETERS,int mode)575 static void php_dba_update(INTERNAL_FUNCTION_PARAMETERS, int mode)
576 {
577 size_t val_len;
578 zval *id;
579 dba_info *info = NULL;
580 int ac = ZEND_NUM_ARGS();
581 zval *key;
582 char *val;
583 char *key_str, *key_free;
584 size_t key_len;
585
586 if (zend_parse_parameters(ac, "zsr", &key, &val, &val_len, &id) == FAILURE) {
587 return;
588 }
589
590 if ((key_len = php_dba_make_key(key, &key_str, &key_free)) == 0) {
591 RETURN_FALSE;
592 }
593
594 DBA_FETCH_RESOURCE_WITH_ID(info, id);
595
596 DBA_WRITE_CHECK_WITH_ID;
597
598 if (info->hnd->update(info, key_str, key_len, val, val_len, mode) == SUCCESS) {
599 DBA_ID_DONE;
600 RETURN_TRUE;
601 }
602
603 DBA_ID_DONE;
604 RETURN_FALSE;
605 }
606 /* }}} */
607
608 #define FREENOW if(args) {int i; for (i=0; i<ac; i++) { zval_ptr_dtor(&args[i]); } efree(args);} if(key) efree(key)
609
610 /* {{{ php_find_dbm
611 */
php_dba_find(const char * path)612 dba_info *php_dba_find(const char* path)
613 {
614 zend_resource *le;
615 dba_info *info;
616 zend_long numitems, i;
617
618 numitems = zend_hash_next_free_element(&EG(regular_list));
619 for (i=1; i<numitems; i++) {
620 if ((le = zend_hash_index_find_ptr(&EG(regular_list), i)) == NULL) {
621 continue;
622 }
623 if (le->type == le_db || le->type == le_pdb) {
624 info = (dba_info *)(le->ptr);
625 if (!strcmp(info->path, path)) {
626 return (dba_info *)(le->ptr);
627 }
628 }
629 }
630
631 return NULL;
632 }
633 /* }}} */
634
635 /* {{{ php_dba_open
636 */
php_dba_open(INTERNAL_FUNCTION_PARAMETERS,int persistent)637 static void php_dba_open(INTERNAL_FUNCTION_PARAMETERS, int persistent)
638 {
639 zval *args = NULL;
640 int ac = ZEND_NUM_ARGS();
641 dba_mode_t modenr;
642 dba_info *info, *other;
643 dba_handler *hptr;
644 char *key = NULL, *error = NULL;
645 size_t keylen = 0;
646 int i;
647 int lock_mode, lock_flag, lock_dbf = 0;
648 char *file_mode;
649 char mode[4], *pmode, *lock_file_mode = NULL;
650 int persistent_flag = persistent ? STREAM_OPEN_PERSISTENT : 0;
651 zend_string *opened_path = NULL;
652 char *lock_name;
653 #ifdef PHP_WIN32
654 zend_bool restarted = 0;
655 zend_bool need_creation = 0;
656 #endif
657
658 if (ac < 2) {
659 WRONG_PARAM_COUNT;
660 }
661
662 /* we pass additional args to the respective handler */
663 args = safe_emalloc(ac, sizeof(zval), 0);
664 if (zend_get_parameters_array_ex(ac, args) != SUCCESS) {
665 efree(args);
666 WRONG_PARAM_COUNT;
667 }
668
669 /* we only take string arguments */
670 for (i = 0; i < ac; i++) {
671 ZVAL_STR(&args[i], zval_get_string(&args[i]));
672 keylen += Z_STRLEN(args[i]);
673 }
674
675 /* Exception during string conversion */
676 if (EG(exception)) {
677 FREENOW;
678 return;
679 }
680
681 if (persistent) {
682 zend_resource *le;
683
684 /* calculate hash */
685 key = safe_emalloc(keylen, 1, 1);
686 key[keylen] = '\0';
687 keylen = 0;
688
689 for(i = 0; i < ac; i++) {
690 memcpy(key+keylen, Z_STRVAL(args[i]), Z_STRLEN(args[i]));
691 keylen += Z_STRLEN(args[i]);
692 }
693
694 /* try to find if we already have this link in our persistent list */
695 if ((le = zend_hash_str_find_ptr(&EG(persistent_list), key, keylen)) != NULL) {
696 FREENOW;
697
698 if (le->type != le_pdb) {
699 RETURN_FALSE;
700 }
701
702 info = (dba_info *)le->ptr;
703
704 GC_ADDREF(le);
705 RETURN_RES(zend_register_resource(info, le_pdb));
706 return;
707 }
708 }
709
710 if (ac==2) {
711 hptr = DBA_G(default_hptr);
712 if (!hptr) {
713 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "No default handler selected");
714 FREENOW;
715 RETURN_FALSE;
716 }
717 } else {
718 for (hptr = handler; hptr->name && strcasecmp(hptr->name, Z_STRVAL(args[2])); hptr++);
719 }
720
721 if (!hptr->name) {
722 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "No such handler: %s", Z_STRVAL(args[2]));
723 FREENOW;
724 RETURN_FALSE;
725 }
726
727 /* Check mode: [rwnc][fl]?t?
728 * r: Read
729 * w: Write
730 * n: Create/Truncate
731 * c: Create
732 *
733 * d: force lock on database file
734 * l: force lock on lck file
735 * -: ignore locking
736 *
737 * t: test open database, warning if locked
738 */
739 strlcpy(mode, Z_STRVAL(args[1]), sizeof(mode));
740 pmode = &mode[0];
741 if (pmode[0] && (pmode[1]=='d' || pmode[1]=='l' || pmode[1]=='-')) { /* force lock on db file or lck file or disable locking */
742 switch (pmode[1]) {
743 case 'd':
744 lock_dbf = 1;
745 if ((hptr->flags & DBA_LOCK_ALL) == 0) {
746 lock_flag = (hptr->flags & DBA_LOCK_ALL);
747 break;
748 }
749 /* no break */
750 case 'l':
751 lock_flag = DBA_LOCK_ALL;
752 if ((hptr->flags & DBA_LOCK_ALL) == 0) {
753 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_NOTICE, "Handler %s does locking internally", hptr->name);
754 }
755 break;
756 default:
757 case '-':
758 if ((hptr->flags & DBA_LOCK_ALL) == 0) {
759 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Locking cannot be disabled for handler %s", hptr->name);
760 FREENOW;
761 RETURN_FALSE;
762 }
763 lock_flag = 0;
764 break;
765 }
766 } else {
767 lock_flag = (hptr->flags&DBA_LOCK_ALL);
768 lock_dbf = 1;
769 }
770 switch (*pmode++) {
771 case 'r':
772 modenr = DBA_READER;
773 lock_mode = (lock_flag & DBA_LOCK_READER) ? LOCK_SH : 0;
774 file_mode = "r";
775 break;
776 case 'w':
777 modenr = DBA_WRITER;
778 lock_mode = (lock_flag & DBA_LOCK_WRITER) ? LOCK_EX : 0;
779 file_mode = "r+b";
780 break;
781 case 'c': {
782 #ifdef PHP_WIN32
783 if (hptr->flags & (DBA_NO_APPEND|DBA_CAST_AS_FD)) {
784 php_stream_statbuf ssb;
785 need_creation = (SUCCESS != php_stream_stat_path(Z_STRVAL(args[0]), &ssb));
786 }
787 #endif
788 modenr = DBA_CREAT;
789 lock_mode = (lock_flag & DBA_LOCK_CREAT) ? LOCK_EX : 0;
790 if (lock_mode) {
791 if (lock_dbf) {
792 /* the create/append check will be done on the lock
793 * when the lib opens the file it is already created
794 */
795 file_mode = "r+b"; /* read & write, seek 0 */
796 #ifdef PHP_WIN32
797 if (!need_creation) {
798 lock_file_mode = "r+b";
799 } else
800 #endif
801 lock_file_mode = "a+b"; /* append */
802 } else {
803 #ifdef PHP_WIN32
804 if (!need_creation) {
805 file_mode = "r+b";
806 } else
807 #endif
808 file_mode = "a+b"; /* append */
809 lock_file_mode = "w+b"; /* create/truncate */
810 }
811 } else {
812 #ifdef PHP_WIN32
813 if (!need_creation) {
814 file_mode = "r+b";
815 } else
816 #endif
817 file_mode = "a+b";
818 }
819 /* In case of the 'a+b' append mode, the handler is responsible
820 * to handle any rewind problems (see flatfile handler).
821 */
822 break;
823 }
824 case 'n':
825 modenr = DBA_TRUNC;
826 lock_mode = (lock_flag & DBA_LOCK_TRUNC) ? LOCK_EX : 0;
827 file_mode = "w+b";
828 break;
829 default:
830 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Illegal DBA mode");
831 FREENOW;
832 RETURN_FALSE;
833 }
834 if (!lock_file_mode) {
835 lock_file_mode = file_mode;
836 }
837 if (*pmode=='d' || *pmode=='l' || *pmode=='-') {
838 pmode++; /* done already - skip here */
839 }
840 if (*pmode=='t') {
841 pmode++;
842 if (!lock_flag) {
843 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "You cannot combine modifiers - (no lock) and t (test lock)");
844 FREENOW;
845 RETURN_FALSE;
846 }
847 if (!lock_mode) {
848 if ((hptr->flags & DBA_LOCK_ALL) == 0) {
849 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Handler %s uses its own locking which doesn't support mode modifier t (test lock)", hptr->name);
850 FREENOW;
851 RETURN_FALSE;
852 } else {
853 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Handler %s doesn't uses locking for this mode which makes modifier t (test lock) obsolete", hptr->name);
854 FREENOW;
855 RETURN_FALSE;
856 }
857 } else {
858 lock_mode |= LOCK_NB; /* test =: non blocking */
859 }
860 }
861 if (*pmode) {
862 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Illegal DBA mode");
863 FREENOW;
864 RETURN_FALSE;
865 }
866
867 info = pemalloc(sizeof(dba_info), persistent);
868 memset(info, 0, sizeof(dba_info));
869 info->path = pestrdup(Z_STRVAL(args[0]), persistent);
870 info->mode = modenr;
871 info->argc = ac - 3;
872 info->argv = args + 3;
873 info->flags = (hptr->flags & ~DBA_LOCK_ALL) | (lock_flag & DBA_LOCK_ALL) | (persistent ? DBA_PERSISTENT : 0);
874 info->lock.mode = lock_mode;
875
876 /* if any open call is a locking call:
877 * check if we already habe a locking call open that should block this call
878 * the problem is some systems would allow read during write
879 */
880 if (hptr->flags & DBA_LOCK_ALL) {
881 if ((other = php_dba_find(info->path)) != NULL) {
882 if ( ( (lock_mode&LOCK_EX) && (other->lock.mode&(LOCK_EX|LOCK_SH)) )
883 || ( (other->lock.mode&LOCK_EX) && (lock_mode&(LOCK_EX|LOCK_SH)) )
884 ) {
885 error = "Unable to establish lock (database file already open)"; /* force failure exit */
886 }
887 }
888 }
889
890 #ifdef PHP_WIN32
891 restart:
892 #endif
893 if (!error && lock_mode) {
894 if (lock_dbf) {
895 lock_name = Z_STRVAL(args[0]);
896 } else {
897 spprintf(&lock_name, 0, "%s.lck", info->path);
898 if (!strcmp(file_mode, "r")) {
899 /* when in read only mode try to use existing .lck file first */
900 /* do not log errors for .lck file while in read only mode on .lck file */
901 lock_file_mode = "rb";
902 info->lock.fp = php_stream_open_wrapper(lock_name, lock_file_mode, STREAM_MUST_SEEK|IGNORE_PATH|persistent_flag, &opened_path);
903 }
904 if (!info->lock.fp) {
905 /* when not in read mode or failed to open .lck file read only. now try again in create(write) mode and log errors */
906 lock_file_mode = "a+b";
907 } else {
908 if (opened_path) {
909 info->lock.name = pestrndup(ZSTR_VAL(opened_path), ZSTR_LEN(opened_path), persistent);
910 zend_string_release_ex(opened_path, 0);
911 }
912 }
913 }
914 if (!info->lock.fp) {
915 info->lock.fp = php_stream_open_wrapper(lock_name, lock_file_mode, STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH|persistent_flag, &opened_path);
916 if (info->lock.fp) {
917 if (lock_dbf) {
918 /* replace the path info with the real path of the opened file */
919 pefree(info->path, persistent);
920 info->path = pestrndup(ZSTR_VAL(opened_path), ZSTR_LEN(opened_path), persistent);
921 }
922 /* now store the name of the lock */
923 info->lock.name = pestrndup(ZSTR_VAL(opened_path), ZSTR_LEN(opened_path), persistent);
924 zend_string_release_ex(opened_path, 0);
925 }
926 }
927 if (!lock_dbf) {
928 efree(lock_name);
929 }
930 if (!info->lock.fp) {
931 dba_close(info);
932 /* stream operation already wrote an error message */
933 FREENOW;
934 RETURN_FALSE;
935 }
936 if (!php_stream_supports_lock(info->lock.fp)) {
937 error = "Stream does not support locking";
938 }
939 if (php_stream_lock(info->lock.fp, lock_mode)) {
940 error = "Unable to establish lock"; /* force failure exit */
941 }
942 }
943
944 /* centralised open stream for builtin */
945 if (!error && (hptr->flags&DBA_STREAM_OPEN)==DBA_STREAM_OPEN) {
946 if (info->lock.fp && lock_dbf) {
947 info->fp = info->lock.fp; /* use the same stream for locking and database access */
948 } else {
949 info->fp = php_stream_open_wrapper(info->path, file_mode, STREAM_MUST_SEEK|REPORT_ERRORS|IGNORE_PATH|persistent_flag, NULL);
950 }
951 if (!info->fp) {
952 dba_close(info);
953 /* stream operation already wrote an error message */
954 FREENOW;
955 RETURN_FALSE;
956 }
957 if (hptr->flags & (DBA_NO_APPEND|DBA_CAST_AS_FD)) {
958 /* Needed because some systems do not allow to write to the original
959 * file contents with O_APPEND being set.
960 */
961 if (SUCCESS != php_stream_cast(info->fp, PHP_STREAM_AS_FD, (void*)&info->fd, 1)) {
962 php_error_docref(NULL, E_WARNING, "Could not cast stream");
963 dba_close(info);
964 FREENOW;
965 RETURN_FALSE;
966 #ifdef F_SETFL
967 } else if (modenr == DBA_CREAT) {
968 int flags = fcntl(info->fd, F_GETFL);
969 fcntl(info->fd, F_SETFL, flags & ~O_APPEND);
970 #elif defined(PHP_WIN32)
971 } else if (modenr == DBA_CREAT && need_creation && !restarted) {
972 zend_bool close_both;
973
974 close_both = (info->fp != info->lock.fp);
975 php_stream_free(info->lock.fp, persistent ? PHP_STREAM_FREE_CLOSE_PERSISTENT : PHP_STREAM_FREE_CLOSE);
976 if (close_both) {
977 php_stream_free(info->fp, persistent ? PHP_STREAM_FREE_CLOSE_PERSISTENT : PHP_STREAM_FREE_CLOSE);
978 }
979 info->fp = NULL;
980 info->lock.fp = NULL;
981 info->fd = -1;
982
983 pefree(info->lock.name, persistent);
984
985 lock_file_mode = "r+b";
986
987 restarted = 1;
988 goto restart;
989 #endif
990 }
991 }
992 }
993
994 if (error || hptr->open(info, &error) != SUCCESS) {
995 dba_close(info);
996 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Driver initialization failed for handler: %s%s%s", hptr->name, error?": ":"", error?error:"");
997 FREENOW;
998 RETURN_FALSE;
999 }
1000
1001 info->hnd = hptr;
1002 info->argc = 0;
1003 info->argv = NULL;
1004
1005 if (persistent) {
1006 if (zend_register_persistent_resource(key, keylen, info, le_pdb) == NULL) {
1007 dba_close(info);
1008 php_error_docref2(NULL, Z_STRVAL(args[0]), Z_STRVAL(args[1]), E_WARNING, "Could not register persistent resource");
1009 FREENOW;
1010 RETURN_FALSE;
1011 }
1012 }
1013
1014 RETVAL_RES(zend_register_resource(info, (persistent ? le_pdb : le_db)));
1015 FREENOW;
1016 }
1017 /* }}} */
1018 #undef FREENOW
1019
1020 /* {{{ proto resource dba_popen(string path, string mode [, string handlername, string ...])
1021 Opens path using the specified handler in mode persistently */
PHP_FUNCTION(dba_popen)1022 PHP_FUNCTION(dba_popen)
1023 {
1024 php_dba_open(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
1025 }
1026 /* }}} */
1027
1028 /* {{{ proto resource dba_open(string path, string mode [, string handlername, string ...])
1029 Opens path using the specified handler in mode*/
PHP_FUNCTION(dba_open)1030 PHP_FUNCTION(dba_open)
1031 {
1032 php_dba_open(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
1033 }
1034 /* }}} */
1035
1036 /* {{{ proto void dba_close(resource handle)
1037 Closes database */
PHP_FUNCTION(dba_close)1038 PHP_FUNCTION(dba_close)
1039 {
1040 zval *id;
1041 dba_info *info = NULL;
1042
1043 if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &id) == FAILURE) {
1044 return;
1045 }
1046
1047 DBA_FETCH_RESOURCE(info, id);
1048
1049 zend_list_close(Z_RES_P(id));
1050 }
1051 /* }}} */
1052
1053 /* {{{ proto bool dba_exists(string key, resource handle)
1054 Checks, if the specified key exists */
PHP_FUNCTION(dba_exists)1055 PHP_FUNCTION(dba_exists)
1056 {
1057 DBA_ID_GET2;
1058
1059 if(info->hnd->exists(info, key_str, key_len) == SUCCESS) {
1060 DBA_ID_DONE;
1061 RETURN_TRUE;
1062 }
1063 DBA_ID_DONE;
1064 RETURN_FALSE;
1065 }
1066 /* }}} */
1067
1068 /* {{{ proto string dba_fetch(string key, [int skip ,] resource handle)
1069 Fetches the data associated with key */
PHP_FUNCTION(dba_fetch)1070 PHP_FUNCTION(dba_fetch)
1071 {
1072 char *val;
1073 size_t len = 0;
1074 DBA_ID_GET2_3;
1075
1076 if (ac==3) {
1077 if (!strcmp(info->hnd->name, "cdb")) {
1078 if (skip < 0) {
1079 php_error_docref(NULL, E_NOTICE, "Handler %s accepts only skip values greater than or equal to zero, using skip=0", info->hnd->name);
1080 skip = 0;
1081 }
1082 } else if (!strcmp(info->hnd->name, "inifile")) {
1083 /* "-1" is compareable to 0 but allows a non restrictive
1084 * access which is fater. For example 'inifile' uses this
1085 * to allow faster access when the key was already found
1086 * using firstkey/nextkey. However explicitly setting the
1087 * value to 0 ensures the first value.
1088 */
1089 if (skip < -1) {
1090 php_error_docref(NULL, E_NOTICE, "Handler %s accepts only skip value -1 and greater, using skip=0", info->hnd->name);
1091 skip = 0;
1092 }
1093 } else {
1094 php_error_docref(NULL, E_NOTICE, "Handler %s does not support optional skip parameter, the value will be ignored", info->hnd->name);
1095 skip = 0;
1096 }
1097 } else {
1098 skip = 0;
1099 }
1100 if((val = info->hnd->fetch(info, key_str, key_len, skip, &len)) != NULL) {
1101 DBA_ID_DONE;
1102 RETVAL_STRINGL(val, len);
1103 efree(val);
1104 return;
1105 }
1106 DBA_ID_DONE;
1107 RETURN_FALSE;
1108 }
1109 /* }}} */
1110
1111 /* {{{ proto array|false dba_key_split(string key)
1112 Splits an inifile key into an array of the form array(0=>group,1=>value_name) but returns false if input is false or null */
PHP_FUNCTION(dba_key_split)1113 PHP_FUNCTION(dba_key_split)
1114 {
1115 zval *zkey;
1116 char *key, *name;
1117 size_t key_len;
1118
1119 if (ZEND_NUM_ARGS() != 1) {
1120 WRONG_PARAM_COUNT;
1121 }
1122 if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS(), "z", &zkey) == SUCCESS) {
1123 if (Z_TYPE_P(zkey) == IS_NULL || (Z_TYPE_P(zkey) == IS_FALSE)) {
1124 RETURN_BOOL(0);
1125 }
1126 }
1127 if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &key, &key_len) == FAILURE) {
1128 RETURN_BOOL(0);
1129 }
1130 array_init(return_value);
1131 if (key[0] == '[' && (name = strchr(key, ']')) != NULL) {
1132 add_next_index_stringl(return_value, key+1, name - (key + 1));
1133 add_next_index_stringl(return_value, name+1, key_len - (name - key + 1));
1134 } else {
1135 add_next_index_stringl(return_value, "", 0);
1136 add_next_index_stringl(return_value, key, key_len);
1137 }
1138 }
1139 /* }}} */
1140
1141 /* {{{ proto string dba_firstkey(resource handle)
1142 Resets the internal key pointer and returns the first key */
PHP_FUNCTION(dba_firstkey)1143 PHP_FUNCTION(dba_firstkey)
1144 {
1145 char *fkey;
1146 size_t len;
1147 zval *id;
1148 dba_info *info = NULL;
1149
1150 if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &id) == FAILURE) {
1151 return;
1152 }
1153
1154 DBA_FETCH_RESOURCE(info, id);
1155
1156 fkey = info->hnd->firstkey(info, &len);
1157
1158 if (fkey) {
1159 RETVAL_STRINGL(fkey, len);
1160 efree(fkey);
1161 return;
1162 }
1163
1164 RETURN_FALSE;
1165 }
1166 /* }}} */
1167
1168 /* {{{ proto string dba_nextkey(resource handle)
1169 Returns the next key */
PHP_FUNCTION(dba_nextkey)1170 PHP_FUNCTION(dba_nextkey)
1171 {
1172 char *nkey;
1173 size_t len;
1174 zval *id;
1175 dba_info *info = NULL;
1176
1177 if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &id) == FAILURE) {
1178 return;
1179 }
1180
1181 DBA_FETCH_RESOURCE(info, id);
1182
1183 nkey = info->hnd->nextkey(info, &len);
1184
1185 if (nkey) {
1186 RETVAL_STRINGL(nkey, len);
1187 efree(nkey);
1188 return;
1189 }
1190
1191 RETURN_FALSE;
1192 }
1193 /* }}} */
1194
1195 /* {{{ proto bool dba_delete(string key, resource handle)
1196 Deletes the entry associated with key
1197 If inifile: remove all other key lines */
PHP_FUNCTION(dba_delete)1198 PHP_FUNCTION(dba_delete)
1199 {
1200 DBA_ID_GET2;
1201
1202 DBA_WRITE_CHECK_WITH_ID;
1203
1204 if(info->hnd->delete(info, key_str, key_len) == SUCCESS)
1205 {
1206 DBA_ID_DONE;
1207 RETURN_TRUE;
1208 }
1209 DBA_ID_DONE;
1210 RETURN_FALSE;
1211 }
1212 /* }}} */
1213
1214 /* {{{ proto bool dba_insert(string key, string value, resource handle)
1215 If not inifile: Insert value as key, return false, if key exists already
1216 If inifile: Add vakue as key (next instance of key) */
PHP_FUNCTION(dba_insert)1217 PHP_FUNCTION(dba_insert)
1218 {
1219 php_dba_update(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
1220 }
1221 /* }}} */
1222
1223 /* {{{ proto bool dba_replace(string key, string value, resource handle)
1224 Inserts value as key, replaces key, if key exists already
1225 If inifile: remove all other key lines */
PHP_FUNCTION(dba_replace)1226 PHP_FUNCTION(dba_replace)
1227 {
1228 php_dba_update(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
1229 }
1230 /* }}} */
1231
1232 /* {{{ proto bool dba_optimize(resource handle)
1233 Optimizes (e.g. clean up, vacuum) database */
PHP_FUNCTION(dba_optimize)1234 PHP_FUNCTION(dba_optimize)
1235 {
1236 zval *id;
1237 dba_info *info = NULL;
1238
1239 if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &id) == FAILURE) {
1240 return;
1241 }
1242
1243 DBA_FETCH_RESOURCE(info, id);
1244
1245 DBA_WRITE_CHECK;
1246
1247 if (info->hnd->optimize(info) == SUCCESS) {
1248 RETURN_TRUE;
1249 }
1250
1251 RETURN_FALSE;
1252 }
1253 /* }}} */
1254
1255 /* {{{ proto bool dba_sync(resource handle)
1256 Synchronizes database */
PHP_FUNCTION(dba_sync)1257 PHP_FUNCTION(dba_sync)
1258 {
1259 zval *id;
1260 dba_info *info = NULL;
1261
1262 if (zend_parse_parameters(ZEND_NUM_ARGS(), "r", &id) == FAILURE) {
1263 return;
1264 }
1265
1266 DBA_FETCH_RESOURCE(info, id);
1267
1268 if (info->hnd->sync(info) == SUCCESS) {
1269 RETURN_TRUE;
1270 }
1271
1272 RETURN_FALSE;
1273 }
1274 /* }}} */
1275
1276 /* {{{ proto array dba_handlers([bool full_info])
1277 List configured database handlers */
PHP_FUNCTION(dba_handlers)1278 PHP_FUNCTION(dba_handlers)
1279 {
1280 dba_handler *hptr;
1281 zend_bool full_info = 0;
1282
1283 if (zend_parse_parameters(ZEND_NUM_ARGS(), "|b", &full_info) == FAILURE) {
1284 RETURN_FALSE;
1285 }
1286
1287 array_init(return_value);
1288
1289 for(hptr = handler; hptr->name; hptr++) {
1290 if (full_info) {
1291 // TODO: avoid reallocation ???
1292 char *str = hptr->info(hptr, NULL);
1293 add_assoc_string(return_value, hptr->name, str);
1294 efree(str);
1295 } else {
1296 add_next_index_string(return_value, hptr->name);
1297 }
1298 }
1299 }
1300 /* }}} */
1301
1302 /* {{{ proto array dba_list()
1303 List opened databases */
PHP_FUNCTION(dba_list)1304 PHP_FUNCTION(dba_list)
1305 {
1306 zend_ulong numitems, i;
1307 zend_resource *le;
1308 dba_info *info;
1309
1310 if (zend_parse_parameters_none() == FAILURE) {
1311 RETURN_FALSE;
1312 }
1313
1314 array_init(return_value);
1315
1316 numitems = zend_hash_next_free_element(&EG(regular_list));
1317 for (i=1; i<numitems; i++) {
1318 if ((le = zend_hash_index_find_ptr(&EG(regular_list), i)) == NULL) {
1319 continue;
1320 }
1321 if (le->type == le_db || le->type == le_pdb) {
1322 info = (dba_info *)(le->ptr);
1323 add_index_string(return_value, i, info->path);
1324 }
1325 }
1326 }
1327 /* }}} */
1328
1329 #endif /* HAVE_DBA */
1330
