forked from php/php-src
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathiconv.c
2916 lines (2462 loc) · 74.2 KB
/
iconv.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
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP 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: Rui Hirokawa <[email protected]> |
| Stig Bakken <[email protected]> |
| Moriyoshi Koizumi <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_globals.h"
#include "ext/standard/info.h"
#include "main/php_output.h"
#include "SAPI.h"
#include "php_ini.h"
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#include <errno.h>
#include "php_iconv.h"
#ifdef HAVE_ICONV
#ifdef PHP_ICONV_H_PATH
#include PHP_ICONV_H_PATH
#else
#include <iconv.h>
#endif
#ifdef HAVE_GLIBC_ICONV
#include <gnu/libc-version.h>
#endif
#ifdef HAVE_LIBICONV
#undef iconv
#endif
#include "zend_smart_str.h"
#include "ext/standard/base64.h"
#include "ext/standard/quot_print.h"
#define _php_iconv_memequal(a, b, c) \
((c) == sizeof(zend_ulong) ? *((zend_ulong *)(a)) == *((zend_ulong *)(b)) : ((c) == sizeof(unsigned int) ? *((unsigned int *)(a)) == *((unsigned int *)(b)) : memcmp(a, b, c) == 0))
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strlen, 0, 0, 1)
ZEND_ARG_INFO(0, str)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_substr, 0, 0, 2)
ZEND_ARG_INFO(0, str)
ZEND_ARG_INFO(0, offset)
ZEND_ARG_INFO(0, length)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strpos, 0, 0, 2)
ZEND_ARG_INFO(0, haystack)
ZEND_ARG_INFO(0, needle)
ZEND_ARG_INFO(0, offset)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strrpos, 0, 0, 2)
ZEND_ARG_INFO(0, haystack)
ZEND_ARG_INFO(0, needle)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_encode, 0, 0, 2)
ZEND_ARG_INFO(0, field_name)
ZEND_ARG_INFO(0, field_value)
ZEND_ARG_INFO(0, preference) /* ZEND_ARG_ARRAY_INFO(0, preference, 1) */
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_decode, 0, 0, 1)
ZEND_ARG_INFO(0, encoded_string)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_decode_headers, 0, 0, 1)
ZEND_ARG_INFO(0, headers)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_iconv, 0)
ZEND_ARG_INFO(0, in_charset)
ZEND_ARG_INFO(0, out_charset)
ZEND_ARG_INFO(0, str)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_iconv_set_encoding, 0)
ZEND_ARG_INFO(0, type)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_get_encoding, 0, 0, 0)
ZEND_ARG_INFO(0, type)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ iconv_functions[]
*/
const zend_function_entry iconv_functions[] = {
PHP_RAW_NAMED_FE(iconv,php_if_iconv, arginfo_iconv)
PHP_FE(iconv_get_encoding, arginfo_iconv_get_encoding)
PHP_FE(iconv_set_encoding, arginfo_iconv_set_encoding)
PHP_FE(iconv_strlen, arginfo_iconv_strlen)
PHP_FE(iconv_substr, arginfo_iconv_substr)
PHP_FE(iconv_strpos, arginfo_iconv_strpos)
PHP_FE(iconv_strrpos, arginfo_iconv_strrpos)
PHP_FE(iconv_mime_encode, arginfo_iconv_mime_encode)
PHP_FE(iconv_mime_decode, arginfo_iconv_mime_decode)
PHP_FE(iconv_mime_decode_headers, arginfo_iconv_mime_decode_headers)
PHP_FE_END
};
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(iconv)
static PHP_GINIT_FUNCTION(iconv);
/* {{{ iconv_module_entry
*/
zend_module_entry iconv_module_entry = {
STANDARD_MODULE_HEADER,
"iconv",
iconv_functions,
PHP_MINIT(miconv),
PHP_MSHUTDOWN(miconv),
NULL,
NULL,
PHP_MINFO(miconv),
PHP_ICONV_VERSION,
PHP_MODULE_GLOBALS(iconv),
PHP_GINIT(iconv),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_ICONV
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
#endif
ZEND_GET_MODULE(iconv)
#endif
/* {{{ PHP_GINIT_FUNCTION */
static PHP_GINIT_FUNCTION(iconv)
{
#if defined(COMPILE_DL_ICONV) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
iconv_globals->input_encoding = NULL;
iconv_globals->output_encoding = NULL;
iconv_globals->internal_encoding = NULL;
}
/* }}} */
#if defined(HAVE_LIBICONV) && defined(ICONV_ALIASED_LIBICONV)
#define iconv libiconv
#endif
/* {{{ typedef enum php_iconv_enc_scheme_t */
typedef enum _php_iconv_enc_scheme_t {
PHP_ICONV_ENC_SCHEME_BASE64,
PHP_ICONV_ENC_SCHEME_QPRINT
} php_iconv_enc_scheme_t;
/* }}} */
#define PHP_ICONV_MIME_DECODE_STRICT (1<<0)
#define PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR (1<<1)
/* {{{ prototypes */
static php_iconv_err_t _php_iconv_appendl(smart_str *d, const char *s, size_t l, iconv_t cd);
static php_iconv_err_t _php_iconv_appendc(smart_str *d, const char c, iconv_t cd);
static void _php_iconv_show_error(php_iconv_err_t err, const char *out_charset, const char *in_charset);
static php_iconv_err_t _php_iconv_strlen(size_t *pretval, const char *str, size_t nbytes, const char *enc);
static php_iconv_err_t _php_iconv_substr(smart_str *pretval, const char *str, size_t nbytes, zend_long offset, zend_long len, const char *enc);
static php_iconv_err_t _php_iconv_strpos(size_t *pretval, const char *haystk, size_t haystk_nbytes, const char *ndl, size_t ndl_nbytes, zend_long offset, const char *enc);
static php_iconv_err_t _php_iconv_mime_encode(smart_str *pretval, const char *fname, size_t fname_nbytes, const char *fval, size_t fval_nbytes, size_t max_line_len, const char *lfchars, php_iconv_enc_scheme_t enc_scheme, const char *out_charset, const char *enc);
static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *str, size_t str_nbytes, const char *enc, const char **next_pos, int mode);
static php_iconv_err_t php_iconv_stream_filter_register_factory(void);
static php_iconv_err_t php_iconv_stream_filter_unregister_factory(void);
static int php_iconv_output_conflict(const char *handler_name, size_t handler_name_len);
static php_output_handler *php_iconv_output_handler_init(const char *name, size_t name_len, size_t chunk_size, int flags);
static int php_iconv_output_handler(void **nothing, php_output_context *output_context);
/* }}} */
/* {{{ static globals */
static char _generic_superset_name[] = ICONV_UCS4_ENCODING;
#define GENERIC_SUPERSET_NAME _generic_superset_name
#define GENERIC_SUPERSET_NBYTES 4
/* }}} */
static PHP_INI_MH(OnUpdateInputEncoding)
{
if (ZSTR_LEN(new_value) >= ICONV_CSNMAXLEN) {
return FAILURE;
}
if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
php_error_docref("ref.iconv", E_DEPRECATED, "Use of iconv.input_encoding is deprecated");
}
OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
return SUCCESS;
}
static PHP_INI_MH(OnUpdateOutputEncoding)
{
if (ZSTR_LEN(new_value) >= ICONV_CSNMAXLEN) {
return FAILURE;
}
if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
php_error_docref("ref.iconv", E_DEPRECATED, "Use of iconv.output_encoding is deprecated");
}
OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
return SUCCESS;
}
static PHP_INI_MH(OnUpdateInternalEncoding)
{
if (ZSTR_LEN(new_value) >= ICONV_CSNMAXLEN) {
return FAILURE;
}
if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
php_error_docref("ref.iconv", E_DEPRECATED, "Use of iconv.internal_encoding is deprecated");
}
OnUpdateString(entry, new_value, mh_arg1, mh_arg2, mh_arg3, stage);
return SUCCESS;
}
/* {{{ PHP_INI
*/
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("iconv.input_encoding", "", PHP_INI_ALL, OnUpdateInputEncoding, input_encoding, zend_iconv_globals, iconv_globals)
STD_PHP_INI_ENTRY("iconv.output_encoding", "", PHP_INI_ALL, OnUpdateOutputEncoding, output_encoding, zend_iconv_globals, iconv_globals)
STD_PHP_INI_ENTRY("iconv.internal_encoding", "", PHP_INI_ALL, OnUpdateInternalEncoding, internal_encoding, zend_iconv_globals, iconv_globals)
PHP_INI_END()
/* }}} */
/* {{{ PHP_MINIT_FUNCTION */
PHP_MINIT_FUNCTION(miconv)
{
char *version = "unknown";
REGISTER_INI_ENTRIES();
#if HAVE_LIBICONV
{
static char buf[16];
snprintf(buf, sizeof(buf), "%d.%d",
((_libiconv_version >> 8) & 0x0f), (_libiconv_version & 0x0f));
version = buf;
}
#elif HAVE_GLIBC_ICONV
version = (char *)gnu_get_libc_version();
#endif
#ifdef PHP_ICONV_IMPL
REGISTER_STRING_CONSTANT("ICONV_IMPL", PHP_ICONV_IMPL, CONST_CS | CONST_PERSISTENT);
#elif HAVE_LIBICONV
REGISTER_STRING_CONSTANT("ICONV_IMPL", "libiconv", CONST_CS | CONST_PERSISTENT);
#else
REGISTER_STRING_CONSTANT("ICONV_IMPL", "unknown", CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_STRING_CONSTANT("ICONV_VERSION", version, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("ICONV_MIME_DECODE_STRICT", PHP_ICONV_MIME_DECODE_STRICT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("ICONV_MIME_DECODE_CONTINUE_ON_ERROR", PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR, CONST_CS | CONST_PERSISTENT);
if (php_iconv_stream_filter_register_factory() != PHP_ICONV_ERR_SUCCESS) {
return FAILURE;
}
php_output_handler_alias_register(ZEND_STRL("ob_iconv_handler"), php_iconv_output_handler_init);
php_output_handler_conflict_register(ZEND_STRL("ob_iconv_handler"), php_iconv_output_conflict);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(miconv)
{
php_iconv_stream_filter_unregister_factory();
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(miconv)
{
zval *iconv_impl, *iconv_ver;
iconv_impl = zend_get_constant_str("ICONV_IMPL", sizeof("ICONV_IMPL")-1);
iconv_ver = zend_get_constant_str("ICONV_VERSION", sizeof("ICONV_VERSION")-1);
php_info_print_table_start();
php_info_print_table_row(2, "iconv support", "enabled");
php_info_print_table_row(2, "iconv implementation", Z_STRVAL_P(iconv_impl));
php_info_print_table_row(2, "iconv library version", Z_STRVAL_P(iconv_ver));
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
static char *get_internal_encoding(void) {
if (ICONVG(internal_encoding) && ICONVG(internal_encoding)[0]) {
return ICONVG(internal_encoding);
} else if (PG(internal_encoding) && PG(internal_encoding)[0]) {
return PG(internal_encoding);
} else if (SG(default_charset)) {
return SG(default_charset);
}
return "";
}
static char *get_input_encoding(void) {
if (ICONVG(input_encoding) && ICONVG(input_encoding)[0]) {
return ICONVG(input_encoding);
} else if (PG(input_encoding) && PG(input_encoding)[0]) {
return PG(input_encoding);
} else if (SG(default_charset)) {
return SG(default_charset);
}
return "";
}
static char *get_output_encoding(void) {
if (ICONVG(output_encoding) && ICONVG(output_encoding)[0]) {
return ICONVG(output_encoding);
} else if (PG(output_encoding) && PG(output_encoding)[0]) {
return PG(output_encoding);
} else if (SG(default_charset)) {
return SG(default_charset);
}
return "";
}
static int php_iconv_output_conflict(const char *handler_name, size_t handler_name_len)
{
if (php_output_get_level()) {
if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_iconv_handler"))
|| php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler"))) {
return FAILURE;
}
}
return SUCCESS;
}
static php_output_handler *php_iconv_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags)
{
return php_output_handler_create_internal(handler_name, handler_name_len, php_iconv_output_handler, chunk_size, flags);
}
static int php_iconv_output_handler(void **nothing, php_output_context *output_context)
{
char *s, *content_type, *mimetype = NULL;
int output_status, mimetype_len = 0;
if (output_context->op & PHP_OUTPUT_HANDLER_START) {
output_status = php_output_get_status();
if (output_status & PHP_OUTPUT_SENT) {
return FAILURE;
}
if (SG(sapi_headers).mimetype && !strncasecmp(SG(sapi_headers).mimetype, "text/", 5)) {
if ((s = strchr(SG(sapi_headers).mimetype,';')) == NULL){
mimetype = SG(sapi_headers).mimetype;
} else {
mimetype = SG(sapi_headers).mimetype;
mimetype_len = (int)(s - SG(sapi_headers).mimetype);
}
} else if (SG(sapi_headers).send_default_content_type) {
mimetype = SG(default_mimetype) ? SG(default_mimetype) : SAPI_DEFAULT_MIMETYPE;
}
if (mimetype != NULL && !(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) {
size_t len;
char *p = strstr(get_output_encoding(), "//");
if (p) {
len = spprintf(&content_type, 0, "Content-Type:%.*s; charset=%.*s", mimetype_len ? mimetype_len : (int) strlen(mimetype), mimetype, (int) (p - get_output_encoding()), get_output_encoding());
} else {
len = spprintf(&content_type, 0, "Content-Type:%.*s; charset=%s", mimetype_len ? mimetype_len : (int) strlen(mimetype), mimetype, get_output_encoding());
}
if (content_type && SUCCESS == sapi_add_header(content_type, (uint32_t)len, 0)) {
SG(sapi_headers).send_default_content_type = 0;
php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL);
}
}
}
if (output_context->in.used) {
zend_string *out;
output_context->out.free = 1;
_php_iconv_show_error(php_iconv_string(output_context->in.data, output_context->in.used, &out, get_output_encoding(), get_internal_encoding()), get_output_encoding(), get_internal_encoding());
if (out) {
output_context->out.data = estrndup(ZSTR_VAL(out), ZSTR_LEN(out));
output_context->out.used = ZSTR_LEN(out);
zend_string_free(out);
} else {
output_context->out.data = NULL;
output_context->out.used = 0;
}
}
return SUCCESS;
}
/* {{{ _php_iconv_appendl() */
static php_iconv_err_t _php_iconv_appendl(smart_str *d, const char *s, size_t l, iconv_t cd)
{
const char *in_p = s;
size_t in_left = l;
char *out_p;
size_t out_left = 0;
size_t buf_growth = 128;
#if !ICONV_SUPPORTS_ERRNO
size_t prev_in_left = in_left;
#endif
if (in_p != NULL) {
while (in_left > 0) {
out_left = buf_growth - out_left;
smart_str_alloc(d, out_left, 0);
out_p = ZSTR_VAL((d)->s) + ZSTR_LEN((d)->s);
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
return PHP_ICONV_ERR_ILLEGAL_CHAR;
case EILSEQ:
return PHP_ICONV_ERR_ILLEGAL_SEQ;
case E2BIG:
break;
default:
return PHP_ICONV_ERR_UNKNOWN;
}
#else
if (prev_in_left == in_left) {
return PHP_ICONV_ERR_UNKNOWN;
}
#endif
}
#if !ICONV_SUPPORTS_ERRNO
prev_in_left = in_left;
#endif
ZSTR_LEN((d)->s) += (buf_growth - out_left);
buf_growth <<= 1;
}
} else {
for (;;) {
out_left = buf_growth - out_left;
smart_str_alloc(d, out_left, 0);
out_p = ZSTR_VAL((d)->s) + ZSTR_LEN((d)->s);
if (iconv(cd, NULL, NULL, (char **) &out_p, &out_left) == (size_t)0) {
ZSTR_LEN((d)->s) += (buf_growth - out_left);
break;
} else {
#if ICONV_SUPPORTS_ERRNO
if (errno != E2BIG) {
return PHP_ICONV_ERR_UNKNOWN;
}
#else
if (out_left != 0) {
return PHP_ICONV_ERR_UNKNOWN;
}
#endif
}
ZSTR_LEN((d)->s) += (buf_growth - out_left);
buf_growth <<= 1;
}
}
return PHP_ICONV_ERR_SUCCESS;
}
/* }}} */
/* {{{ _php_iconv_appendc() */
static php_iconv_err_t _php_iconv_appendc(smart_str *d, const char c, iconv_t cd)
{
return _php_iconv_appendl(d, &c, 1, cd);
}
/* }}} */
/* {{{ */
#if ICONV_BROKEN_IGNORE
static int _php_check_ignore(const char *charset)
{
size_t clen = strlen(charset);
if (clen >= 9 && strcmp("//IGNORE", charset+clen-8) == 0) {
return 1;
}
if (clen >= 19 && strcmp("//IGNORE//TRANSLIT", charset+clen-18) == 0) {
return 1;
}
return 0;
}
#else
#define _php_check_ignore(x) (0)
#endif
/* }}} */
/* {{{ php_iconv_string()
*/
PHP_ICONV_API php_iconv_err_t php_iconv_string(const char *in_p, size_t in_len, zend_string **out, const char *out_charset, const char *in_charset)
{
#if !ICONV_SUPPORTS_ERRNO
size_t in_size, out_size, out_left;
char *out_p;
iconv_t cd;
size_t result;
zend_string *ret, *out_buffer;
/*
This is not the right way to get output size...
This is not space efficient for large text.
This is also problem for encoding like UTF-7/UTF-8/ISO-2022 which
a single char can be more than 4 bytes.
I added 15 extra bytes for safety. <[email protected]>
*/
out_size = in_len * sizeof(int) + 15;
out_left = out_size;
in_size = in_len;
cd = iconv_open(out_charset, in_charset);
if (cd == (iconv_t)(-1)) {
return PHP_ICONV_ERR_UNKNOWN;
}
out_buffer = zend_string_alloc(out_size, 0);
out_p = ZSTR_VAL(out_buffer);
result = iconv(cd, (const char **) &in_p, &in_size, (char **) &out_p, &out_left);
if (result == (size_t)(-1)) {
zend_string_free(out_buffer);
return PHP_ICONV_ERR_UNKNOWN;
}
if (out_left < 8) {
size_t pos = out_p - ZSTR_VAL(out_buffer);
out_buffer = zend_string_extend(out_buffer, out_size + 8, 0);
out_p = ZSTR_VAL(out_buffer) + pos;
out_size += 7;
out_left += 7;
}
/* flush the shift-out sequences */
result = iconv(cd, NULL, NULL, &out_p, &out_left);
if (result == (size_t)(-1)) {
zend_string_free(out_buffer);
return PHP_ICONV_ERR_UNKNOWN;
}
ZSTR_VAL(out_buffer)[out_size - out_left] = '\0';
ZSTR_LEN(out_buffer) = out_size - out_left;
iconv_close(cd);
*out = out_buffer;
return PHP_ICONV_ERR_SUCCESS;
#else
/*
iconv supports errno. Handle it better way.
*/
iconv_t cd;
size_t in_left, out_size, out_left;
char *out_p;
size_t bsz, result = 0;
php_iconv_err_t retval = PHP_ICONV_ERR_SUCCESS;
zend_string *out_buf;
int ignore_ilseq = _php_check_ignore(out_charset);
*out = NULL;
cd = iconv_open(out_charset, in_charset);
if (cd == (iconv_t)(-1)) {
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
}
in_left= in_len;
out_left = in_len + 32; /* Avoid realloc() most cases */
out_size = 0;
bsz = out_left;
out_buf = zend_string_alloc(bsz, 0);
out_p = ZSTR_VAL(out_buf);
while (in_left > 0) {
result = iconv(cd, (char **) &in_p, &in_left, (char **) &out_p, &out_left);
out_size = bsz - out_left;
if (result == (size_t)(-1)) {
if (ignore_ilseq && errno == EILSEQ) {
if (in_left <= 1) {
result = 0;
} else {
errno = 0;
in_p++;
in_left--;
continue;
}
}
if (errno == E2BIG && in_left > 0) {
/* converted string is longer than out buffer */
bsz += in_len;
out_buf = zend_string_extend(out_buf, bsz, 0);
out_p = ZSTR_VAL(out_buf);
out_p += out_size;
out_left = bsz - out_size;
continue;
}
}
break;
}
if (result != (size_t)(-1)) {
/* flush the shift-out sequences */
for (;;) {
result = iconv(cd, NULL, NULL, (char **) &out_p, &out_left);
out_size = bsz - out_left;
if (result != (size_t)(-1)) {
break;
}
if (errno == E2BIG) {
bsz += 16;
out_buf = zend_string_extend(out_buf, bsz, 0);
out_p = ZSTR_VAL(out_buf);
out_p += out_size;
out_left = bsz - out_size;
} else {
break;
}
}
}
iconv_close(cd);
if (result == (size_t)(-1)) {
switch (errno) {
case EINVAL:
retval = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
retval = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
/* should not happen */
retval = PHP_ICONV_ERR_TOO_BIG;
break;
default:
/* other error */
zend_string_free(out_buf);
return PHP_ICONV_ERR_UNKNOWN;
}
}
*out_p = '\0';
ZSTR_LEN(out_buf) = out_size;
*out = out_buf;
return retval;
#endif
}
/* }}} */
/* {{{ _php_iconv_strlen() */
static php_iconv_err_t _php_iconv_strlen(size_t *pretval, const char *str, size_t nbytes, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES*2];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
size_t cnt;
*pretval = (size_t)-1;
cd = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
#else
return PHP_ICONV_ERR_UNKNOWN;
#endif
}
errno = 0;
out_left = 0;
for (in_p = str, in_left = nbytes, cnt = 0; in_left > 0; cnt+=2) {
size_t prev_in_left;
out_p = buf;
out_left = sizeof(buf);
prev_in_left = in_left;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
if (prev_in_left == in_left) {
break;
}
}
}
if (out_left > 0) {
cnt -= out_left / GENERIC_SUPERSET_NBYTES;
}
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
case 0:
*pretval = cnt;
break;
default:
err = PHP_ICONV_ERR_UNKNOWN;
break;
}
#else
*pretval = cnt;
#endif
iconv_close(cd);
return err;
}
/* }}} */
/* {{{ _php_iconv_substr() */
static php_iconv_err_t _php_iconv_substr(smart_str *pretval,
const char *str, size_t nbytes, zend_long offset, zend_long len, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd1, cd2;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
size_t cnt;
size_t total_len;
err = _php_iconv_strlen(&total_len, str, nbytes, enc);
if (err != PHP_ICONV_ERR_SUCCESS) {
return err;
}
if (len < 0) {
if ((len += (total_len - offset)) < 0) {
return PHP_ICONV_ERR_SUCCESS;
}
}
if (offset < 0) {
if ((offset += total_len) < 0) {
return PHP_ICONV_ERR_SUCCESS;
}
}
if((size_t)len > total_len) {
len = total_len;
}
if ((size_t)offset > total_len) {
return PHP_ICONV_ERR_SUCCESS;
}
if ((size_t)(offset + len) > total_len ) {
/* trying to compute the length */
len = total_len - offset;
}
if (len == 0) {
smart_str_appendl(pretval, "", 0);
smart_str_0(pretval);
return PHP_ICONV_ERR_SUCCESS;
}
cd1 = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd1 == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
#else
return PHP_ICONV_ERR_UNKNOWN;
#endif
}
cd2 = (iconv_t)NULL;
errno = 0;
for (in_p = str, in_left = nbytes, cnt = 0; in_left > 0 && len > 0; ++cnt) {
size_t prev_in_left;
out_p = buf;
out_left = sizeof(buf);
prev_in_left = in_left;
if (iconv(cd1, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
if (prev_in_left == in_left) {
break;
}
}
if ((zend_long)cnt >= offset) {
if (cd2 == (iconv_t)NULL) {
cd2 = iconv_open(enc, GENERIC_SUPERSET_NAME);
if (cd2 == (iconv_t)(-1)) {
cd2 = (iconv_t)NULL;
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
break;
}
}
if (_php_iconv_appendl(pretval, buf, sizeof(buf), cd2) != PHP_ICONV_ERR_SUCCESS) {
break;
}
--len;
}
}
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
break;
}
#endif
if (err == PHP_ICONV_ERR_SUCCESS) {
if (cd2 != (iconv_t)NULL) {
_php_iconv_appendl(pretval, NULL, 0, cd2);
}
smart_str_0(pretval);
}
if (cd1 != (iconv_t)NULL) {
iconv_close(cd1);
}
if (cd2 != (iconv_t)NULL) {
iconv_close(cd2);
}
return err;
}
/* }}} */
/* {{{ _php_iconv_strpos() */
static php_iconv_err_t _php_iconv_strpos(size_t *pretval,
const char *haystk, size_t haystk_nbytes,
const char *ndl, size_t ndl_nbytes,
zend_long offset, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
size_t cnt;
zend_string *ndl_buf;
const char *ndl_buf_p;
size_t ndl_buf_left;
size_t match_ofs;
*pretval = (size_t)-1;
err = php_iconv_string(ndl, ndl_nbytes, &ndl_buf, GENERIC_SUPERSET_NAME, enc);
if (err != PHP_ICONV_ERR_SUCCESS) {
if (ndl_buf != NULL) {
zend_string_free(ndl_buf);
}
return err;
}
cd = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd == (iconv_t)(-1)) {
if (ndl_buf != NULL) {
zend_string_free(ndl_buf);
}
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {