-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathxmlIO.c
4155 lines (3703 loc) · 103 KB
/
xmlIO.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
/*
* xmlIO.c : implementation of the I/O interfaces used by the parser
*
* See Copyright for the status of this software.
*
* daniel@veillard.com
*
* 14 Nov 2000 ht - for VMS, truncated name of long functions to under 32 char
*/
#define IN_LIBXML
#include "libxml.h"
#include <string.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#ifdef HAVE_LZMA_H
#include <lzma.h>
#endif
#if defined(WIN32) || defined(_WIN32)
#include <windows.h>
#endif
#if defined(_WIN32_WCE)
#include <winnls.h> /* for CP_UTF8 */
#endif
/* Figure a portable way to know if a file is a directory. */
#ifndef HAVE_STAT
# ifdef HAVE__STAT
/* MS C library seems to define stat and _stat. The definition
is identical. Still, mapping them to each other causes a warning. */
# ifndef _MSC_VER
# define stat(x,y) _stat(x,y)
# endif
# define HAVE_STAT
# endif
#else
# ifdef HAVE__STAT
# if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
# define stat _stat
# endif
# endif
#endif
#ifdef HAVE_STAT
# ifndef S_ISDIR
# ifdef _S_ISDIR
# define S_ISDIR(x) _S_ISDIR(x)
# else
# ifdef S_IFDIR
# ifndef S_IFMT
# ifdef _S_IFMT
# define S_IFMT _S_IFMT
# endif
# endif
# ifdef S_IFMT
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
# endif
# endif
# endif
# endif
#endif
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/parserInternals.h>
#include <libxml/xmlIO.h>
#include <libxml/uri.h>
#include <libxml/nanohttp.h>
#include <libxml/nanoftp.h>
#include <libxml/xmlerror.h>
#ifdef LIBXML_CATALOG_ENABLED
#include <libxml/catalog.h>
#endif
#include <libxml/globals.h>
#include "buf.h"
#include "enc.h"
/* #define VERBOSE_FAILURE */
/* #define DEBUG_EXTERNAL_ENTITIES */
/* #define DEBUG_INPUT */
#ifdef DEBUG_INPUT
#define MINLEN 40
#else
#define MINLEN 4000
#endif
/*
* Input I/O callback sets
*/
typedef struct _xmlInputCallback {
xmlInputMatchCallback matchcallback;
xmlInputOpenCallback opencallback;
xmlInputReadCallback readcallback;
xmlInputCloseCallback closecallback;
} xmlInputCallback;
#define MAX_INPUT_CALLBACK 15
static xmlInputCallback xmlInputCallbackTable[MAX_INPUT_CALLBACK];
static int xmlInputCallbackNr = 0;
static int xmlInputCallbackInitialized = 0;
#ifdef LIBXML_OUTPUT_ENABLED
/*
* Output I/O callback sets
*/
typedef struct _xmlOutputCallback {
xmlOutputMatchCallback matchcallback;
xmlOutputOpenCallback opencallback;
xmlOutputWriteCallback writecallback;
xmlOutputCloseCallback closecallback;
} xmlOutputCallback;
#define MAX_OUTPUT_CALLBACK 15
static xmlOutputCallback xmlOutputCallbackTable[MAX_OUTPUT_CALLBACK];
static int xmlOutputCallbackNr = 0;
static int xmlOutputCallbackInitialized = 0;
xmlOutputBufferPtr
xmlAllocOutputBufferInternal(xmlCharEncodingHandlerPtr encoder);
#endif /* LIBXML_OUTPUT_ENABLED */
/************************************************************************
* *
* Tree memory error handler *
* *
************************************************************************/
static const char *IOerr[] = {
"Unknown IO error", /* UNKNOWN */
"Permission denied", /* EACCES */
"Resource temporarily unavailable",/* EAGAIN */
"Bad file descriptor", /* EBADF */
"Bad message", /* EBADMSG */
"Resource busy", /* EBUSY */
"Operation canceled", /* ECANCELED */
"No child processes", /* ECHILD */
"Resource deadlock avoided",/* EDEADLK */
"Domain error", /* EDOM */
"File exists", /* EEXIST */
"Bad address", /* EFAULT */
"File too large", /* EFBIG */
"Operation in progress", /* EINPROGRESS */
"Interrupted function call",/* EINTR */
"Invalid argument", /* EINVAL */
"Input/output error", /* EIO */
"Is a directory", /* EISDIR */
"Too many open files", /* EMFILE */
"Too many links", /* EMLINK */
"Inappropriate message buffer length",/* EMSGSIZE */
"Filename too long", /* ENAMETOOLONG */
"Too many open files in system",/* ENFILE */
"No such device", /* ENODEV */
"No such file or directory",/* ENOENT */
"Exec format error", /* ENOEXEC */
"No locks available", /* ENOLCK */
"Not enough space", /* ENOMEM */
"No space left on device", /* ENOSPC */
"Function not implemented", /* ENOSYS */
"Not a directory", /* ENOTDIR */
"Directory not empty", /* ENOTEMPTY */
"Not supported", /* ENOTSUP */
"Inappropriate I/O control operation",/* ENOTTY */
"No such device or address",/* ENXIO */
"Operation not permitted", /* EPERM */
"Broken pipe", /* EPIPE */
"Result too large", /* ERANGE */
"Read-only file system", /* EROFS */
"Invalid seek", /* ESPIPE */
"No such process", /* ESRCH */
"Operation timed out", /* ETIMEDOUT */
"Improper link", /* EXDEV */
"Attempt to load network entity %s", /* XML_IO_NETWORK_ATTEMPT */
"encoder error", /* XML_IO_ENCODER */
"flush error",
"write error",
"no input",
"buffer full",
"loading error",
"not a socket", /* ENOTSOCK */
"already connected", /* EISCONN */
"connection refused", /* ECONNREFUSED */
"unreachable network", /* ENETUNREACH */
"adddress in use", /* EADDRINUSE */
"already in use", /* EALREADY */
"unknown address familly", /* EAFNOSUPPORT */
};
#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
/**
* __xmlIOWin32UTF8ToWChar:
* @u8String: uft-8 string
*
* Convert a string from utf-8 to wchar (WINDOWS ONLY!)
*/
static wchar_t *
__xmlIOWin32UTF8ToWChar(const char *u8String)
{
wchar_t *wString = NULL;
if (u8String) {
int wLen =
MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, u8String,
-1, NULL, 0);
if (wLen) {
wString = xmlMalloc(wLen * sizeof(wchar_t));
if (wString) {
if (MultiByteToWideChar
(CP_UTF8, 0, u8String, -1, wString, wLen) == 0) {
xmlFree(wString);
wString = NULL;
}
}
}
}
return wString;
}
#endif
/**
* xmlIOErrMemory:
* @extra: extra informations
*
* Handle an out of memory condition
*/
static void
xmlIOErrMemory(const char *extra)
{
__xmlSimpleError(XML_FROM_IO, XML_ERR_NO_MEMORY, NULL, NULL, extra);
}
/**
* __xmlIOErr:
* @code: the error number
* @
* @extra: extra informations
*
* Handle an I/O error
*/
void
__xmlIOErr(int domain, int code, const char *extra)
{
unsigned int idx;
if (code == 0) {
#ifdef HAVE_ERRNO_H
if (errno == 0) code = 0;
#ifdef EACCES
else if (errno == EACCES) code = XML_IO_EACCES;
#endif
#ifdef EAGAIN
else if (errno == EAGAIN) code = XML_IO_EAGAIN;
#endif
#ifdef EBADF
else if (errno == EBADF) code = XML_IO_EBADF;
#endif
#ifdef EBADMSG
else if (errno == EBADMSG) code = XML_IO_EBADMSG;
#endif
#ifdef EBUSY
else if (errno == EBUSY) code = XML_IO_EBUSY;
#endif
#ifdef ECANCELED
else if (errno == ECANCELED) code = XML_IO_ECANCELED;
#endif
#ifdef ECHILD
else if (errno == ECHILD) code = XML_IO_ECHILD;
#endif
#ifdef EDEADLK
else if (errno == EDEADLK) code = XML_IO_EDEADLK;
#endif
#ifdef EDOM
else if (errno == EDOM) code = XML_IO_EDOM;
#endif
#ifdef EEXIST
else if (errno == EEXIST) code = XML_IO_EEXIST;
#endif
#ifdef EFAULT
else if (errno == EFAULT) code = XML_IO_EFAULT;
#endif
#ifdef EFBIG
else if (errno == EFBIG) code = XML_IO_EFBIG;
#endif
#ifdef EINPROGRESS
else if (errno == EINPROGRESS) code = XML_IO_EINPROGRESS;
#endif
#ifdef EINTR
else if (errno == EINTR) code = XML_IO_EINTR;
#endif
#ifdef EINVAL
else if (errno == EINVAL) code = XML_IO_EINVAL;
#endif
#ifdef EIO
else if (errno == EIO) code = XML_IO_EIO;
#endif
#ifdef EISDIR
else if (errno == EISDIR) code = XML_IO_EISDIR;
#endif
#ifdef EMFILE
else if (errno == EMFILE) code = XML_IO_EMFILE;
#endif
#ifdef EMLINK
else if (errno == EMLINK) code = XML_IO_EMLINK;
#endif
#ifdef EMSGSIZE
else if (errno == EMSGSIZE) code = XML_IO_EMSGSIZE;
#endif
#ifdef ENAMETOOLONG
else if (errno == ENAMETOOLONG) code = XML_IO_ENAMETOOLONG;
#endif
#ifdef ENFILE
else if (errno == ENFILE) code = XML_IO_ENFILE;
#endif
#ifdef ENODEV
else if (errno == ENODEV) code = XML_IO_ENODEV;
#endif
#ifdef ENOENT
else if (errno == ENOENT) code = XML_IO_ENOENT;
#endif
#ifdef ENOEXEC
else if (errno == ENOEXEC) code = XML_IO_ENOEXEC;
#endif
#ifdef ENOLCK
else if (errno == ENOLCK) code = XML_IO_ENOLCK;
#endif
#ifdef ENOMEM
else if (errno == ENOMEM) code = XML_IO_ENOMEM;
#endif
#ifdef ENOSPC
else if (errno == ENOSPC) code = XML_IO_ENOSPC;
#endif
#ifdef ENOSYS
else if (errno == ENOSYS) code = XML_IO_ENOSYS;
#endif
#ifdef ENOTDIR
else if (errno == ENOTDIR) code = XML_IO_ENOTDIR;
#endif
#ifdef ENOTEMPTY
else if (errno == ENOTEMPTY) code = XML_IO_ENOTEMPTY;
#endif
#ifdef ENOTSUP
else if (errno == ENOTSUP) code = XML_IO_ENOTSUP;
#endif
#ifdef ENOTTY
else if (errno == ENOTTY) code = XML_IO_ENOTTY;
#endif
#ifdef ENXIO
else if (errno == ENXIO) code = XML_IO_ENXIO;
#endif
#ifdef EPERM
else if (errno == EPERM) code = XML_IO_EPERM;
#endif
#ifdef EPIPE
else if (errno == EPIPE) code = XML_IO_EPIPE;
#endif
#ifdef ERANGE
else if (errno == ERANGE) code = XML_IO_ERANGE;
#endif
#ifdef EROFS
else if (errno == EROFS) code = XML_IO_EROFS;
#endif
#ifdef ESPIPE
else if (errno == ESPIPE) code = XML_IO_ESPIPE;
#endif
#ifdef ESRCH
else if (errno == ESRCH) code = XML_IO_ESRCH;
#endif
#ifdef ETIMEDOUT
else if (errno == ETIMEDOUT) code = XML_IO_ETIMEDOUT;
#endif
#ifdef EXDEV
else if (errno == EXDEV) code = XML_IO_EXDEV;
#endif
#ifdef ENOTSOCK
else if (errno == ENOTSOCK) code = XML_IO_ENOTSOCK;
#endif
#ifdef EISCONN
else if (errno == EISCONN) code = XML_IO_EISCONN;
#endif
#ifdef ECONNREFUSED
else if (errno == ECONNREFUSED) code = XML_IO_ECONNREFUSED;
#endif
#ifdef ETIMEDOUT
else if (errno == ETIMEDOUT) code = XML_IO_ETIMEDOUT;
#endif
#ifdef ENETUNREACH
else if (errno == ENETUNREACH) code = XML_IO_ENETUNREACH;
#endif
#ifdef EADDRINUSE
else if (errno == EADDRINUSE) code = XML_IO_EADDRINUSE;
#endif
#ifdef EINPROGRESS
else if (errno == EINPROGRESS) code = XML_IO_EINPROGRESS;
#endif
#ifdef EALREADY
else if (errno == EALREADY) code = XML_IO_EALREADY;
#endif
#ifdef EAFNOSUPPORT
else if (errno == EAFNOSUPPORT) code = XML_IO_EAFNOSUPPORT;
#endif
else code = XML_IO_UNKNOWN;
#endif /* HAVE_ERRNO_H */
}
idx = 0;
if (code >= XML_IO_UNKNOWN) idx = code - XML_IO_UNKNOWN;
if (idx >= (sizeof(IOerr) / sizeof(IOerr[0]))) idx = 0;
__xmlSimpleError(domain, code, NULL, IOerr[idx], extra);
}
/**
* xmlIOErr:
* @code: the error number
* @extra: extra informations
*
* Handle an I/O error
*/
static void
xmlIOErr(int code, const char *extra)
{
__xmlIOErr(XML_FROM_IO, code, extra);
}
/**
* __xmlLoaderErr:
* @ctx: the parser context
* @extra: extra informations
*
* Handle a resource access error
*/
void
__xmlLoaderErr(void *ctx, const char *msg, const char *filename)
{
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr) ctx;
xmlStructuredErrorFunc schannel = NULL;
xmlGenericErrorFunc channel = NULL;
void *data = NULL;
xmlErrorLevel level = XML_ERR_ERROR;
if ((ctxt != NULL) && (ctxt->disableSAX != 0) &&
(ctxt->instate == XML_PARSER_EOF))
return;
if ((ctxt != NULL) && (ctxt->sax != NULL)) {
if (ctxt->validate) {
channel = ctxt->sax->error;
level = XML_ERR_ERROR;
} else {
channel = ctxt->sax->warning;
level = XML_ERR_WARNING;
}
if (ctxt->sax->initialized == XML_SAX2_MAGIC)
schannel = ctxt->sax->serror;
data = ctxt->userData;
}
__xmlRaiseError(schannel, channel, data, ctxt, NULL, XML_FROM_IO,
XML_IO_LOAD_ERROR, level, NULL, 0,
filename, NULL, NULL, 0, 0,
msg, filename);
}
/************************************************************************
* *
* Tree memory error handler *
* *
************************************************************************/
/**
* xmlNormalizeWindowsPath:
* @path: the input file path
*
* This function is obsolete. Please see xmlURIFromPath in uri.c for
* a better solution.
*
* Returns a canonicalized version of the path
*/
xmlChar *
xmlNormalizeWindowsPath(const xmlChar *path)
{
return xmlCanonicPath(path);
}
/**
* xmlCleanupInputCallbacks:
*
* clears the entire input callback table. this includes the
* compiled-in I/O.
*/
void
xmlCleanupInputCallbacks(void)
{
int i;
if (!xmlInputCallbackInitialized)
return;
for (i = xmlInputCallbackNr - 1; i >= 0; i--) {
xmlInputCallbackTable[i].matchcallback = NULL;
xmlInputCallbackTable[i].opencallback = NULL;
xmlInputCallbackTable[i].readcallback = NULL;
xmlInputCallbackTable[i].closecallback = NULL;
}
xmlInputCallbackNr = 0;
xmlInputCallbackInitialized = 0;
}
/**
* xmlPopInputCallbacks:
*
* Clear the top input callback from the input stack. this includes the
* compiled-in I/O.
*
* Returns the number of input callback registered or -1 in case of error.
*/
int
xmlPopInputCallbacks(void)
{
if (!xmlInputCallbackInitialized)
return(-1);
if (xmlInputCallbackNr <= 0)
return(-1);
xmlInputCallbackNr--;
xmlInputCallbackTable[xmlInputCallbackNr].matchcallback = NULL;
xmlInputCallbackTable[xmlInputCallbackNr].opencallback = NULL;
xmlInputCallbackTable[xmlInputCallbackNr].readcallback = NULL;
xmlInputCallbackTable[xmlInputCallbackNr].closecallback = NULL;
return(xmlInputCallbackNr);
}
#ifdef LIBXML_OUTPUT_ENABLED
/**
* xmlCleanupOutputCallbacks:
*
* clears the entire output callback table. this includes the
* compiled-in I/O callbacks.
*/
void
xmlCleanupOutputCallbacks(void)
{
int i;
if (!xmlOutputCallbackInitialized)
return;
for (i = xmlOutputCallbackNr - 1; i >= 0; i--) {
xmlOutputCallbackTable[i].matchcallback = NULL;
xmlOutputCallbackTable[i].opencallback = NULL;
xmlOutputCallbackTable[i].writecallback = NULL;
xmlOutputCallbackTable[i].closecallback = NULL;
}
xmlOutputCallbackNr = 0;
xmlOutputCallbackInitialized = 0;
}
#endif /* LIBXML_OUTPUT_ENABLED */
/************************************************************************
* *
* Standard I/O for file accesses *
* *
************************************************************************/
#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
/**
* xmlWrapOpenUtf8:
* @path: the path in utf-8 encoding
* @mode: type of access (0 - read, 1 - write)
*
* function opens the file specified by @path
*
*/
static FILE*
xmlWrapOpenUtf8(const char *path,int mode)
{
FILE *fd = NULL;
wchar_t *wPath;
wPath = __xmlIOWin32UTF8ToWChar(path);
if(wPath)
{
fd = _wfopen(wPath, mode ? L"wb" : L"rb");
xmlFree(wPath);
}
/* maybe path in native encoding */
if(fd == NULL)
fd = fopen(path, mode ? "wb" : "rb");
return fd;
}
#ifdef HAVE_ZLIB_H
static gzFile
xmlWrapGzOpenUtf8(const char *path, const char *mode)
{
gzFile fd;
wchar_t *wPath;
fd = gzopen (path, mode);
if (fd)
return fd;
wPath = __xmlIOWin32UTF8ToWChar(path);
if(wPath)
{
int d, m = (strstr(mode, "r") ? O_RDONLY : O_RDWR);
#ifdef _O_BINARY
m |= (strstr(mode, "b") ? _O_BINARY : 0);
#endif
d = _wopen(wPath, m);
if (d >= 0)
fd = gzdopen(d, mode);
xmlFree(wPath);
}
return fd;
}
#endif
/**
* xmlWrapStatUtf8:
* @path: the path in utf-8 encoding
* @info: structure that stores results
*
* function obtains information about the file or directory
*
*/
static int
xmlWrapStatUtf8(const char *path,struct stat *info)
{
#ifdef HAVE_STAT
int retval = -1;
wchar_t *wPath;
wPath = __xmlIOWin32UTF8ToWChar(path);
if (wPath)
{
retval = _wstat(wPath,info);
xmlFree(wPath);
}
/* maybe path in native encoding */
if(retval < 0)
retval = stat(path,info);
return retval;
#else
return -1;
#endif
}
/**
* xmlWrapOpenNative:
* @path: the path
* @mode: type of access (0 - read, 1 - write)
*
* function opens the file specified by @path
*
*/
static FILE*
xmlWrapOpenNative(const char *path,int mode)
{
return fopen(path,mode ? "wb" : "rb");
}
/**
* xmlWrapStatNative:
* @path: the path
* @info: structure that stores results
*
* function obtains information about the file or directory
*
*/
static int
xmlWrapStatNative(const char *path,struct stat *info)
{
#ifdef HAVE_STAT
return stat(path,info);
#else
return -1;
#endif
}
typedef int (* xmlWrapStatFunc) (const char *f, struct stat *s);
static xmlWrapStatFunc xmlWrapStat = xmlWrapStatNative;
typedef FILE* (* xmlWrapOpenFunc)(const char *f,int mode);
static xmlWrapOpenFunc xmlWrapOpen = xmlWrapOpenNative;
#ifdef HAVE_ZLIB_H
typedef gzFile (* xmlWrapGzOpenFunc) (const char *f, const char *mode);
static xmlWrapGzOpenFunc xmlWrapGzOpen = gzopen;
#endif
/**
* xmlInitPlatformSpecificIo:
*
* Initialize platform specific features.
*/
static void
xmlInitPlatformSpecificIo(void)
{
static int xmlPlatformIoInitialized = 0;
OSVERSIONINFO osvi;
if(xmlPlatformIoInitialized)
return;
osvi.dwOSVersionInfoSize = sizeof(osvi);
if(GetVersionEx(&osvi) && (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)) {
xmlWrapStat = xmlWrapStatUtf8;
xmlWrapOpen = xmlWrapOpenUtf8;
#ifdef HAVE_ZLIB_H
xmlWrapGzOpen = xmlWrapGzOpenUtf8;
#endif
} else {
xmlWrapStat = xmlWrapStatNative;
xmlWrapOpen = xmlWrapOpenNative;
#ifdef HAVE_ZLIB_H
xmlWrapGzOpen = gzopen;
#endif
}
xmlPlatformIoInitialized = 1;
return;
}
#endif
/**
* xmlCheckFilename:
* @path: the path to check
*
* function checks to see if @path is a valid source
* (file, socket...) for XML.
*
* if stat is not available on the target machine,
* returns 1. if stat fails, returns 0 (if calling
* stat on the filename fails, it can't be right).
* if stat succeeds and the file is a directory,
* returns 2. otherwise returns 1.
*/
int
xmlCheckFilename (const char *path)
{
#ifdef HAVE_STAT
struct stat stat_buffer;
#endif
if (path == NULL)
return(0);
#ifdef HAVE_STAT
#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
/*
* On Windows stat and wstat do not work with long pathname,
* which start with '\\?\'
*/
if ((path[0] == '\\') && (path[1] == '\\') && (path[2] == '?') &&
(path[3] == '\\') )
return 1;
if (xmlWrapStat(path, &stat_buffer) == -1)
return 0;
#else
if (stat(path, &stat_buffer) == -1)
return 0;
#endif
#ifdef S_ISDIR
if (S_ISDIR(stat_buffer.st_mode))
return 2;
#endif
#endif /* HAVE_STAT */
return 1;
}
int
xmlNop(void) {
return(0);
}
/**
* xmlFdRead:
* @context: the I/O context
* @buffer: where to drop data
* @len: number of bytes to read
*
* Read @len bytes to @buffer from the I/O channel.
*
* Returns the number of bytes written
*/
static int
xmlFdRead (void * context, char * buffer, int len) {
int ret;
ret = read((int) (long) context, &buffer[0], len);
if (ret < 0) xmlIOErr(0, "read()");
return(ret);
}
#ifdef LIBXML_OUTPUT_ENABLED
/**
* xmlFdWrite:
* @context: the I/O context
* @buffer: where to get data
* @len: number of bytes to write
*
* Write @len bytes from @buffer to the I/O channel.
*
* Returns the number of bytes written
*/
static int
xmlFdWrite (void * context, const char * buffer, int len) {
int ret = 0;
if (len > 0) {
ret = write((int) (long) context, &buffer[0], len);
if (ret < 0) xmlIOErr(0, "write()");
}
return(ret);
}
#endif /* LIBXML_OUTPUT_ENABLED */
/**
* xmlFdClose:
* @context: the I/O context
*
* Close an I/O channel
*
* Returns 0 in case of success and error code otherwise
*/
static int
xmlFdClose (void * context) {
int ret;
ret = close((int) (long) context);
if (ret < 0) xmlIOErr(0, "close()");
return(ret);
}
/**
* xmlFileMatch:
* @filename: the URI for matching
*
* input from FILE *
*
* Returns 1 if matches, 0 otherwise
*/
int
xmlFileMatch (const char *filename ATTRIBUTE_UNUSED) {
return(1);
}
/**
* xmlFileOpen_real:
* @filename: the URI for matching
*
* input from FILE *, supports compressed input
* if @filename is " " then the standard input is used
*
* Returns an I/O context or NULL in case of error
*/
static void *
xmlFileOpen_real (const char *filename) {
const char *path = NULL;
FILE *fd;
if (filename == NULL)
return(NULL);
if (!strcmp(filename, "-")) {
fd = stdin;
return((void *) fd);
}
if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17)) {
#if defined (_WIN32) || defined (__DJGPP__) && !defined(__CYGWIN__)
path = &filename[17];
#else
path = &filename[16];
#endif
} else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) {
#if defined (_WIN32) || defined (__DJGPP__) && !defined(__CYGWIN__)
path = &filename[8];
#else
path = &filename[7];
#endif
} else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:/", 6)) {
/* lots of generators seems to lazy to read RFC 1738 */
#if defined (_WIN32) || defined (__DJGPP__) && !defined(__CYGWIN__)
path = &filename[6];
#else
path = &filename[5];
#endif
} else
path = filename;
if (path == NULL)
return(NULL);
if (!xmlCheckFilename(path))
return(NULL);
#if defined(_WIN32) || defined (__DJGPP__) && !defined (__CYGWIN__)
fd = xmlWrapOpen(path, 0);
#else
fd = fopen(path, "r");
#endif /* WIN32 */
if (fd == NULL) xmlIOErr(0, path);
return((void *) fd);
}
/**
* xmlFileOpen:
* @filename: the URI for matching
*
* Wrapper around xmlFileOpen_real that try it with an unescaped
* version of @filename, if this fails fallback to @filename
*
* Returns a handler or NULL in case or failure
*/
void *
xmlFileOpen (const char *filename) {
char *unescaped;
void *retval;
retval = xmlFileOpen_real(filename);
if (retval == NULL) {
unescaped = xmlURIUnescapeString(filename, 0, NULL);
if (unescaped != NULL) {
retval = xmlFileOpen_real(unescaped);
xmlFree(unescaped);
}
}
return retval;
}
#ifdef LIBXML_OUTPUT_ENABLED
/**
* xmlFileOpenW:
* @filename: the URI for matching
*
* output to from FILE *,
* if @filename is "-" then the standard output is used
*
* Returns an I/O context or NULL in case of error
*/
static void *
xmlFileOpenW (const char *filename) {
const char *path = NULL;
FILE *fd;
if (!strcmp(filename, "-")) {
fd = stdout;
return((void *) fd);
}
if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file://localhost/", 17))
#if defined (_WIN32) || defined (__DJGPP__) && !defined(__CYGWIN__)
path = &filename[17];
#else
path = &filename[16];
#endif
else if (!xmlStrncasecmp(BAD_CAST filename, BAD_CAST "file:///", 8)) {
#if defined (_WIN32) || defined (__DJGPP__) && !defined(__CYGWIN__)
path = &filename[8];
#else
path = &filename[7];
#endif
} else
path = filename;
if (path == NULL)
return(NULL);