forked from php/php-src
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathzend_API.c
4838 lines (4184 loc) · 140 KB
/
zend_API.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <[email protected]> |
| Zeev Suraski <[email protected]> |
| Andrei Zmievski <[email protected]> |
| Dmitry Stogov <[email protected]> |
+----------------------------------------------------------------------+
*/
#include "zend.h"
#include "zend_execute.h"
#include "zend_API.h"
#include "zend_modules.h"
#include "zend_extensions.h"
#include "zend_constants.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#include "zend_inheritance.h"
#include "zend_ini.h"
#include <stdarg.h>
/* these variables are true statics/globals, and have to be mutex'ed on every access */
ZEND_API HashTable module_registry;
static zend_module_entry **module_request_startup_handlers;
static zend_module_entry **module_request_shutdown_handlers;
static zend_module_entry **module_post_deactivate_handlers;
static zend_class_entry **class_cleanup_handlers;
ZEND_API zend_result _zend_get_parameters_array_ex(uint32_t param_count, zval *argument_array) /* {{{ */
{
zval *param_ptr;
uint32_t arg_count;
param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
if (param_count>arg_count) {
return FAILURE;
}
while (param_count-->0) {
ZVAL_COPY_VALUE(argument_array, param_ptr);
argument_array++;
param_ptr++;
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_copy_parameters_array(uint32_t param_count, zval *argument_array) /* {{{ */
{
zval *param_ptr;
uint32_t arg_count;
param_ptr = ZEND_CALL_ARG(EG(current_execute_data), 1);
arg_count = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
if (param_count>arg_count) {
return FAILURE;
}
while (param_count-->0) {
Z_TRY_ADDREF_P(param_ptr);
zend_hash_next_index_insert_new(Z_ARRVAL_P(argument_array), param_ptr);
param_ptr++;
}
return SUCCESS;
}
/* }}} */
ZEND_API ZEND_COLD void zend_wrong_param_count(void) /* {{{ */
{
const char *space;
const char *class_name = get_active_class_name(&space);
zend_argument_count_error("Wrong parameter count for %s%s%s()", class_name, space, get_active_function_name());
}
/* }}} */
/* Argument parsing API -- andrei */
ZEND_API const char *zend_get_type_by_const(int type) /* {{{ */
{
switch(type) {
case IS_FALSE:
case IS_TRUE:
case _IS_BOOL:
return "bool";
case IS_LONG:
return "int";
case IS_DOUBLE:
return "float";
case IS_STRING:
return "string";
case IS_OBJECT:
return "object";
case IS_RESOURCE:
return "resource";
case IS_NULL:
return "null";
case IS_CALLABLE:
return "callable";
case IS_ITERABLE:
return "iterable";
case IS_ARRAY:
return "array";
case IS_VOID:
return "void";
case IS_MIXED:
return "mixed";
case _IS_NUMBER:
return "number";
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API const char *zend_zval_type_name(const zval *arg) /* {{{ */
{
ZVAL_DEREF(arg);
if (Z_ISUNDEF_P(arg)) {
return "null";
}
if (Z_TYPE_P(arg) == IS_OBJECT) {
return ZSTR_VAL(Z_OBJCE_P(arg)->name);
}
return zend_get_type_by_const(Z_TYPE_P(arg));
}
/* }}} */
/* This API exists *only* for use in gettype().
* For anything else, you likely want zend_zval_type_name(). */
ZEND_API zend_string *zend_zval_get_legacy_type(const zval *arg) /* {{{ */
{
switch (Z_TYPE_P(arg)) {
case IS_NULL:
return ZSTR_KNOWN(ZEND_STR_NULL);
case IS_FALSE:
case IS_TRUE:
return ZSTR_KNOWN(ZEND_STR_BOOLEAN);
case IS_LONG:
return ZSTR_KNOWN(ZEND_STR_INTEGER);
case IS_DOUBLE:
return ZSTR_KNOWN(ZEND_STR_DOUBLE);
case IS_STRING:
return ZSTR_KNOWN(ZEND_STR_STRING);
case IS_ARRAY:
return ZSTR_KNOWN(ZEND_STR_ARRAY);
case IS_OBJECT:
return ZSTR_KNOWN(ZEND_STR_OBJECT);
case IS_RESOURCE:
if (zend_rsrc_list_get_rsrc_type(Z_RES_P(arg))) {
return ZSTR_KNOWN(ZEND_STR_RESOURCE);
} else {
return ZSTR_KNOWN(ZEND_STR_CLOSED_RESOURCE);
}
default:
return NULL;
}
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_none_error(void) /* {{{ */
{
int num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
zend_string *func_name = get_active_function_or_method_name();
zend_argument_count_error("%s() expects exactly 0 arguments, %d given", ZSTR_VAL(func_name), num_args);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameters_count_error(uint32_t min_num_args, uint32_t max_num_args) /* {{{ */
{
uint32_t num_args = ZEND_CALL_NUM_ARGS(EG(current_execute_data));
zend_string *func_name = get_active_function_or_method_name();
zend_argument_count_error(
"%s() expects %s %d argument%s, %d given",
ZSTR_VAL(func_name),
min_num_args == max_num_args ? "exactly" : num_args < min_num_args ? "at least" : "at most",
num_args < min_num_args ? min_num_args : max_num_args,
(num_args < min_num_args ? min_num_args : max_num_args) == 1 ? "" : "s",
num_args
);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_error(int error_code, uint32_t num, char *name, zend_expected_type expected_type, zval *arg) /* {{{ */
{
switch (error_code) {
case ZPP_ERROR_WRONG_CALLBACK:
zend_wrong_callback_error(num, name);
break;
case ZPP_ERROR_WRONG_CALLBACK_OR_NULL:
zend_wrong_callback_or_null_error(num, name);
break;
case ZPP_ERROR_WRONG_CLASS:
zend_wrong_parameter_class_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_NULL:
zend_wrong_parameter_class_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_STRING:
zend_wrong_parameter_class_or_string_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_STRING_OR_NULL:
zend_wrong_parameter_class_or_string_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_LONG:
zend_wrong_parameter_class_or_long_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_CLASS_OR_LONG_OR_NULL:
zend_wrong_parameter_class_or_long_or_null_error(num, name, arg);
break;
case ZPP_ERROR_WRONG_ARG:
zend_wrong_parameter_type_error(num, expected_type, arg);
break;
case ZPP_ERROR_UNEXPECTED_EXTRA_NAMED:
zend_unexpected_extra_named_error();
break;
case ZPP_ERROR_FAILURE:
ZEND_ASSERT(EG(exception) && "Should have produced an error already");
break;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_type_error(uint32_t num, zend_expected_type expected_type, zval *arg) /* {{{ */
{
static const char * const expected_error[] = {
Z_EXPECTED_TYPES(Z_EXPECTED_TYPE_STR)
NULL
};
if (EG(exception)) {
return;
}
if ((expected_type == Z_EXPECTED_PATH || expected_type == Z_EXPECTED_PATH_OR_NULL)
&& Z_TYPE_P(arg) == IS_STRING) {
zend_argument_value_error(num, "must not contain any null bytes");
return;
}
zend_argument_type_error(num, "must be %s, %s given", expected_error[expected_type], zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type ?%s, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|int, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_long_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|int|null, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|string, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_parameter_class_or_string_or_null_error(uint32_t num, const char *name, zval *arg) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be of type %s|string|null, %s given", name, zend_zval_type_name(arg));
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(uint32_t num, char *error) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be a valid callback, %s", error);
efree(error);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_or_null_error(uint32_t num, char *error) /* {{{ */
{
if (EG(exception)) {
return;
}
zend_argument_type_error(num, "must be a valid callback or null, %s", error);
efree(error);
}
/* }}} */
ZEND_API ZEND_COLD void ZEND_FASTCALL zend_unexpected_extra_named_error(void)
{
const char *space;
const char *class_name = get_active_class_name(&space);
zend_argument_count_error("%s%s%s() does not accept unknown named parameters",
class_name, space, get_active_function_name());
}
static ZEND_COLD void ZEND_FASTCALL zend_argument_error_variadic(zend_class_entry *error_ce, uint32_t arg_num, const char *format, va_list va) /* {{{ */
{
zend_string *func_name;
const char *arg_name;
char *message = NULL;
if (EG(exception)) {
return;
}
func_name = get_active_function_or_method_name();
arg_name = get_active_function_arg_name(arg_num);
zend_vspprintf(&message, 0, format, va);
zend_throw_error(error_ce, "%s(): Argument #%d%s%s%s %s",
ZSTR_VAL(func_name), arg_num,
arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "", message
);
efree(message);
zend_string_release(func_name);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_error(zend_class_entry *error_ce, uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(error_ce, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_type_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(zend_ce_type_error, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API ZEND_COLD void zend_argument_value_error(uint32_t arg_num, const char *format, ...) /* {{{ */
{
va_list va;
va_start(va, format);
zend_argument_error_variadic(zend_ce_value_error, arg_num, format, va);
va_end(va);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_class(zval *arg, zend_class_entry **pce, uint32_t num, bool check_null) /* {{{ */
{
zend_class_entry *ce_base = *pce;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
*pce = NULL;
return 1;
}
if (!try_convert_to_string(arg)) {
*pce = NULL;
return 0;
}
*pce = zend_lookup_class(Z_STR_P(arg));
if (ce_base) {
if ((!*pce || !instanceof_function(*pce, ce_base))) {
zend_argument_type_error(num, "must be a class name derived from %s, %s given", ZSTR_VAL(ce_base->name), Z_STRVAL_P(arg));
*pce = NULL;
return 0;
}
}
if (!*pce) {
zend_argument_type_error(num, "must be a valid class name, %s given", Z_STRVAL_P(arg));
return 0;
}
return 1;
}
/* }}} */
static ZEND_COLD bool zend_null_arg_deprecated(const char *fallback_type, uint32_t arg_num) {
zend_function *func = EG(current_execute_data)->func;
ZEND_ASSERT(arg_num > 0);
uint32_t arg_offset = arg_num - 1;
if (arg_offset >= func->common.num_args) {
ZEND_ASSERT(func->common.fn_flags & ZEND_ACC_VARIADIC);
arg_offset = func->common.num_args;
}
zend_arg_info *arg_info = &func->common.arg_info[arg_offset];
zend_string *func_name = get_active_function_or_method_name();
const char *arg_name = get_active_function_arg_name(arg_num);
/* If no type is specified in arginfo, use the specified fallback_type determined through
* zend_parse_parameters instead. */
zend_string *type_str = zend_type_to_string(arg_info->type);
const char *type = type_str ? ZSTR_VAL(type_str) : fallback_type;
zend_error(E_DEPRECATED,
"%s(): Passing null to parameter #%" PRIu32 "%s%s%s of type %s is deprecated",
ZSTR_VAL(func_name), arg_num,
arg_name ? " ($" : "", arg_name ? arg_name : "", arg_name ? ")" : "",
type);
zend_string_release(func_name);
if (type_str) {
zend_string_release(type_str);
}
return !EG(exception);
}
ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_weak(zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) <= IS_STRING)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("bool", arg_num)) {
return 0;
}
*dest = zend_is_true(arg);
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_bool_slow(zval *arg, bool *dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_bool_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_weak(zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_DOUBLE)) {
if (UNEXPECTED(zend_isnan(Z_DVAL_P(arg)))) {
return 0;
}
if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(Z_DVAL_P(arg)))) {
return 0;
} else {
*dest = zend_dval_to_lval(Z_DVAL_P(arg));
}
} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
double d;
zend_uchar type;
if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), dest, &d)) != IS_LONG)) {
if (EXPECTED(type != 0)) {
if (UNEXPECTED(zend_isnan(d))) {
return 0;
}
if (UNEXPECTED(!ZEND_DOUBLE_FITS_LONG(d))) {
return 0;
} else {
*dest = zend_dval_to_lval(d);
}
} else {
return 0;
}
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int", arg_num)) {
return 0;
}
*dest = 0;
} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
*dest = 1;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_long_slow(zval *arg, zend_long *dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_long_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_weak(zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
*dest = (double)Z_LVAL_P(arg);
} else if (EXPECTED(Z_TYPE_P(arg) == IS_STRING)) {
zend_long l;
zend_uchar type;
if (UNEXPECTED((type = is_numeric_str_function(Z_STR_P(arg), &l, dest)) != IS_DOUBLE)) {
if (EXPECTED(type != 0)) {
*dest = (double)(l);
} else {
return 0;
}
}
if (UNEXPECTED(EG(exception))) {
return 0;
}
} else if (EXPECTED(Z_TYPE_P(arg) < IS_TRUE)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("float", arg_num)) {
return 0;
}
*dest = 0.0;
} else if (EXPECTED(Z_TYPE_P(arg) == IS_TRUE)) {
*dest = 1.0;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_double_slow(zval *arg, double *dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) == IS_LONG)) {
/* SSTH Exception: IS_LONG may be accepted instead as IS_DOUBLE */
*dest = (double)Z_LVAL_P(arg);
} else if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_double_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_number_slow(zval *arg, zval **dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
if (Z_TYPE_P(arg) == IS_STRING) {
zend_string *str = Z_STR_P(arg);
zend_long lval;
double dval;
zend_uchar type = is_numeric_str_function(str, &lval, &dval);
if (type == IS_LONG) {
ZVAL_LONG(arg, lval);
} else if (type == IS_DOUBLE) {
ZVAL_DOUBLE(arg, dval);
} else {
return 0;
}
zend_string_release(str);
} else if (Z_TYPE_P(arg) < IS_TRUE) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("int|float", arg_num)) {
return 0;
}
ZVAL_LONG(arg, 0);
} else if (Z_TYPE_P(arg) == IS_TRUE) {
ZVAL_LONG(arg, 1);
} else {
return 0;
}
*dest = arg;
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_weak(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(arg) < IS_STRING)) {
if (UNEXPECTED(Z_TYPE_P(arg) == IS_NULL) && !zend_null_arg_deprecated("string", arg_num)) {
return 0;
}
convert_to_string(arg);
*dest = Z_STR_P(arg);
} else if (UNEXPECTED(Z_TYPE_P(arg) == IS_OBJECT)) {
zend_object *zobj = Z_OBJ_P(arg);
zval obj;
if (zobj->handlers->cast_object(zobj, &obj, IS_STRING) == SUCCESS) {
OBJ_RELEASE(zobj);
ZVAL_COPY_VALUE(arg, &obj);
*dest = Z_STR_P(arg);
return 1;
}
return 0;
} else {
return 0;
}
return 1;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_slow(zval *arg, zend_string **dest, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
return zend_parse_arg_str_weak(arg, dest, arg_num);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_parse_arg_str_or_long_slow(zval *arg, zend_string **dest_str, zend_long *dest_long, uint32_t arg_num) /* {{{ */
{
if (UNEXPECTED(ZEND_ARG_USES_STRICT_TYPES())) {
return 0;
}
if (zend_parse_arg_long_weak(arg, dest_long, arg_num)) {
*dest_str = NULL;
return 1;
} else if (zend_parse_arg_str_weak(arg, dest_str, arg_num)) {
*dest_long = 0;
return 1;
} else {
return 0;
}
}
/* }}} */
static const char *zend_parse_arg_impl(zval *arg, va_list *va, const char **spec, char **error, uint32_t arg_num) /* {{{ */
{
const char *spec_walk = *spec;
char c = *spec_walk++;
bool check_null = 0;
bool separate = 0;
zval *real_arg = arg;
/* scan through modifiers */
ZVAL_DEREF(arg);
while (1) {
if (*spec_walk == '/') {
SEPARATE_ZVAL_NOREF(arg);
real_arg = arg;
separate = 1;
} else if (*spec_walk == '!') {
check_null = 1;
} else {
break;
}
spec_walk++;
}
switch (c) {
case 'l':
{
zend_long *p = va_arg(*va, zend_long *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_long(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?int" : "int";
}
}
break;
case 'd':
{
double *p = va_arg(*va, double *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_double(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?float" : "float";
}
}
break;
case 'n':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_number(arg, p, check_null, arg_num)) {
return check_null ? "int|float|null" : "int|float";
}
}
break;
case 's':
{
char **p = va_arg(*va, char **);
size_t *pl = va_arg(*va, size_t *);
if (!zend_parse_arg_string(arg, p, pl, check_null, arg_num)) {
return check_null ? "?string" : "string";
}
}
break;
case 'p':
{
char **p = va_arg(*va, char **);
size_t *pl = va_arg(*va, size_t *);
if (!zend_parse_arg_path(arg, p, pl, check_null, arg_num)) {
if (Z_TYPE_P(arg) == IS_STRING) {
zend_spprintf(error, 0, "must not contain any null bytes");
return "";
} else {
return check_null ? "?string" : "string";
}
}
}
break;
case 'P':
{
zend_string **str = va_arg(*va, zend_string **);
if (!zend_parse_arg_path_str(arg, str, check_null, arg_num)) {
if (Z_TYPE_P(arg) == IS_STRING) {
zend_spprintf(error, 0, "must not contain any null bytes");
return "";
} else {
return check_null ? "?string" : "string";
}
}
}
break;
case 'S':
{
zend_string **str = va_arg(*va, zend_string **);
if (!zend_parse_arg_str(arg, str, check_null, arg_num)) {
return check_null ? "?string" : "string";
}
}
break;
case 'b':
{
bool *p = va_arg(*va, bool *);
bool *is_null = NULL;
if (check_null) {
is_null = va_arg(*va, bool *);
}
if (!zend_parse_arg_bool(arg, p, is_null, check_null, arg_num)) {
return check_null ? "?bool" : "bool";
}
}
break;
case 'r':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_resource(arg, p, check_null)) {
return check_null ? "resource or null" : "resource";
}
}
break;
case 'A':
case 'a':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_array(arg, p, check_null, c == 'A')) {
return check_null ? "?array" : "array";
}
}
break;
case 'H':
case 'h':
{
HashTable **p = va_arg(*va, HashTable **);
if (!zend_parse_arg_array_ht(arg, p, check_null, c == 'H', separate)) {
return check_null ? "?array" : "array";
}
}
break;
case 'o':
{
zval **p = va_arg(*va, zval **);
if (!zend_parse_arg_object(arg, p, NULL, check_null)) {
return check_null ? "?object" : "object";
}
}
break;
case 'O':
{
zval **p = va_arg(*va, zval **);
zend_class_entry *ce = va_arg(*va, zend_class_entry *);
if (!zend_parse_arg_object(arg, p, ce, check_null)) {
if (ce) {
if (check_null) {
zend_spprintf(error, 0, "must be of type ?%s, %s given", ZSTR_VAL(ce->name), zend_zval_type_name(arg));
return "";
} else {
return ZSTR_VAL(ce->name);
}
} else {
return check_null ? "?object" : "object";
}
}
}
break;
case 'C':
{
zend_class_entry *lookup, **pce = va_arg(*va, zend_class_entry **);
zend_class_entry *ce_base = *pce;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
*pce = NULL;
break;
}
if (!try_convert_to_string(arg)) {
*pce = NULL;
return ""; /* try_convert_to_string() throws an exception */
}
if ((lookup = zend_lookup_class(Z_STR_P(arg))) == NULL) {
*pce = NULL;
} else {
*pce = lookup;
}
if (ce_base) {
if ((!*pce || !instanceof_function(*pce, ce_base))) {
zend_spprintf(error, 0, "must be a class name derived from %s%s, %s given",
ZSTR_VAL(ce_base->name), check_null ? " or null" : "", Z_STRVAL_P(arg));
*pce = NULL;
return "";
}
}
if (!*pce) {
zend_spprintf(error, 0, "must be a valid class name%s, %s given",
check_null ? " or null" : "", Z_STRVAL_P(arg));
return "";
}
break;
}
break;
case 'f':
{
zend_fcall_info *fci = va_arg(*va, zend_fcall_info *);
zend_fcall_info_cache *fcc = va_arg(*va, zend_fcall_info_cache *);
char *is_callable_error = NULL;
if (check_null && Z_TYPE_P(arg) == IS_NULL) {
fci->size = 0;
fcc->function_handler = 0;
break;
}
if (zend_fcall_info_init(arg, 0, fci, fcc, NULL, &is_callable_error) == SUCCESS) {
ZEND_ASSERT(!is_callable_error);
/* Release call trampolines: The function may not get called, in which case
* the trampoline will leak. Force it to be refetched during
* zend_call_function instead. */
zend_release_fcall_info_cache(fcc);
break;
}
if (is_callable_error) {
zend_spprintf(error, 0, "must be a valid callback%s, %s", check_null ? " or null" : "", is_callable_error);
efree(is_callable_error);
return "";
} else {
return check_null ? "a valid callback or null" : "a valid callback";
}
}
case 'z':
{
zval **p = va_arg(*va, zval **);
zend_parse_arg_zval_deref(real_arg, p, check_null);
}
break;
case 'Z': /* replace with 'z' */
case 'L': /* replace with 'l' */
ZEND_ASSERT(0 && "ZPP modifier no longer supported");
ZEND_FALLTHROUGH;
default:
return "unknown";
}
*spec = spec_walk;
return NULL;
}
/* }}} */
static zend_result zend_parse_arg(uint32_t arg_num, zval *arg, va_list *va, const char **spec, int flags) /* {{{ */
{
const char *expected_type = NULL;
char *error = NULL;
expected_type = zend_parse_arg_impl(arg, va, spec, &error, arg_num);
if (expected_type) {
if (EG(exception)) {
return FAILURE;
}
if (!(flags & ZEND_PARSE_PARAMS_QUIET) && (*expected_type || error)) {
if (error) {
if (strcmp(error, "must not contain any null bytes") == 0) {
zend_argument_value_error(arg_num, "%s", error);
} else {
zend_argument_type_error(arg_num, "%s", error);
}
efree(error);
} else {
zend_argument_type_error(arg_num, "must be of type %s, %s given", expected_type, zend_zval_type_name(arg));
}
} else if (error) {
efree(error);
}
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result zend_parse_parameter(int flags, uint32_t arg_num, zval *arg, const char *spec, ...)
{
va_list va;
zend_result ret;
va_start(va, spec);
ret = zend_parse_arg(arg_num, arg, &va, &spec, flags);
va_end(va);
return ret;
}