forked from swiftlang/swift-corelibs-foundation
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathCFBundle_Grok.c
1020 lines (966 loc) · 64.3 KB
/
CFBundle_Grok.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
/* CFBundle_Grok.c
Copyright (c) 1999-2018, Apple Inc. and the Swift project authors
Portions Copyright (c) 2014-2018, Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
Responsibility: Tony Parker
*/
#include "CFBundle_Internal.h"
#if BINARY_SUPPORT_DYLD
// Import the mach-o headers that define the macho magic numbers
#include <mach-o/loader.h>
#include <mach-o/fat.h>
#include <mach-o/arch.h>
#include <mach-o/dyld.h>
#include <mach-o/getsect.h>
#include <crt_externs.h>
#if USE_DYLD_PRIV
#include <mach-o/dyld_priv.h>
#endif /* USE_DYLD_PRIV */
#endif /* BINARY_SUPPORT_DYLD */
#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
#include <unistd.h>
#endif
#include <fcntl.h>
#if !TARGET_OS_WIN32
#include <sys/mman.h>
#endif
#if BINARY_SUPPORT_DLFCN
#include <dlfcn.h>
#endif /* BINARY_SUPPORT_DLFCN */
#include <sys/stat.h>
#include <ctype.h>
#if TARGET_OS_WIN32
#define statinfo _stat
#define stat(x,y) _NS_stat(x,y)
#define open _NS_open
#define MAP_FAILED 0
// Windows isspace implementation limits the input chars to < 256 in the ASCII range. It will
// assert in debug builds. This is annoying. We merrily grok chars > 256.
static inline _Bool _CF_isspace(int c) {
return (c == ' ' || c == '\t' || c == '\n' || c == '\r'|| c == '\v' || c == '\f');
}
#define isspace _CF_isspace
#else
#define statinfo stat
#endif
#define UNKNOWN_FILETYPE 0x0
#define PEF_FILETYPE 0x1000
#define PEF_MAGIC 0x4a6f7921
#define PEF_CIGAM 0x21796f4a
#define TEXT_SEGMENT "__TEXT"
#define PLIST_SECTION "__info_plist"
#define OBJC_SEGMENT "__OBJC"
#define IMAGE_INFO_SECTION "__image_info"
#define OBJC_SEGMENT_64 "__DATA"
#define IMAGE_INFO_SECTION_64 "__objc_imageinfo"
#define LIB_X11 "/usr/X11R6/lib/libX"
#define XLS_NAME "Book"
#define XLS_NAME2 "Workbook"
#define DOC_NAME "WordDocument"
#define PPT_NAME "PowerPoint Document"
#define ustrncmp(x, y, z) strncmp((char *)(x), (char *)(y), (z))
#define ustrncasecmp(x, y, z) strncasecmp_l((char *)(x), (char *)(y), (z), NULL)
static const uint32_t __CFBundleMagicNumbersArray[] = {
0xcafebabe, 0xbebafeca, 0xfeedface, 0xcefaedfe, 0xfeedfacf, 0xcffaedfe, 0x4a6f7921, 0x21796f4a,
0x7f454c46, 0xffd8ffe0, 0x4d4d002a, 0x49492a00, 0x47494638, 0x89504e47, 0x69636e73, 0x00000100,
0x7b5c7274, 0x25504446, 0x2e7261fd, 0x2e524d46, 0x2e736e64, 0x2e736400, 0x464f524d, 0x52494646,
0x38425053, 0x000001b3, 0x000001ba, 0x4d546864, 0x504b0304, 0x53495421, 0x53495432, 0x53495435,
0x53495444, 0x53747566, 0x30373037, 0x3c212d2d, 0x25215053, 0xd0cf11e0, 0x62656769, 0x3d796265,
0x6b6f6c79, 0x3026b275, 0x0000000c, 0xfe370023, 0x09020600, 0x09040600, 0x4f676753, 0x664c6143,
0x00010000, 0x74727565, 0x4f54544f, 0x41433130, 0xc809fe02, 0x0809fe02, 0x2356524d, 0x67696d70,
0x3c435058, 0x28445746, 0x424f4d53, 0x49544f4c, 0x72746664, 0x63616666, 0x802a5fd7, 0x762f3101
};
// string, with groups of 5 characters being 1 element in the array
static const char * const __CFBundleExtensionsArray =
"mach\0" "mach\0" "mach\0" "mach\0" "mach\0" "mach\0" "pef\0\0" "pef\0\0"
"elf\0\0" "jpeg\0" "tiff\0" "tiff\0" "gif\0\0" "png\0\0" "icns\0" "ico\0\0"
"rtf\0\0" "pdf\0\0" "ra\0\0\0""rm\0\0\0""au\0\0\0""au\0\0\0""iff\0\0" "riff\0"
"psd\0\0" "mpeg\0" "mpeg\0" "mid\0\0" "zip\0\0" "sit\0\0" "sit\0\0" "sit\0\0"
"sit\0\0" "sit\0\0" "cpio\0" "html\0" "ps\0\0\0""ole\0\0" "uu\0\0\0""ync\0\0"
"dmg\0\0" "wmv\0\0" "jp2\0\0" "doc\0\0" "xls\0\0" "xls\0\0" "ogg\0\0" "flac\0"
"ttf\0\0" "ttf\0\0" "otf\0\0" "dwg\0\0" "dgn\0\0" "dgn\0\0" "wrl\0\0" "xcf\0\0"
"cpx\0\0" "dwf\0\0" "bom\0\0" "lit\0\0" "rtfd\0" "caf\0\0" "cin\0\0" "exr\0\0";
static const char * const __CFBundleOOExtensionsArray = "sxc\0\0" "sxd\0\0" "sxg\0\0" "sxi\0\0" "sxm\0\0" "sxw\0\0";
static const char * const __CFBundleODExtensionsArray = "odc\0\0" "odf\0\0" "odg\0\0" "oth\0\0" "odi\0\0" "odm\0\0" "odp\0\0" "ods\0\0" "odt\0\0";
#define EXTENSION_LENGTH 5
#define NUM_EXTENSIONS 64
#define MAGIC_BYTES_TO_READ 512
#define DMG_BYTES_TO_READ 512
#define ZIP_BYTES_TO_READ 1024
#define OLE_BYTES_TO_READ 512
#define X11_BYTES_TO_READ 4096
#define IMAGE_INFO_BYTES_TO_READ 4096
#if defined(BINARY_SUPPORT_DYLD)
static CFMutableDictionaryRef _CFBundleCreateInfoDictFromData(const char *bytes, uint32_t length) {
CFMutableDictionaryRef result = NULL;
CFDataRef infoData = NULL;
if (bytes && 0 < length) {
infoData = CFDataCreateWithBytesNoCopy(kCFAllocatorSystemDefault, (uint8_t *)bytes, length, kCFAllocatorNull);
if (infoData) {
result = (CFMutableDictionaryRef)CFPropertyListCreateWithData(kCFAllocatorSystemDefault, infoData, kCFPropertyListMutableContainers, NULL, NULL);
if (result && CFDictionaryGetTypeID() != CFGetTypeID(result)) {
CFRelease(result);
result = NULL;
}
CFRelease(infoData);
}
if (!result) result = CFDictionaryCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
}
if (result) _CFBundleInfoPlistProcessInfoDictionary((CFMutableDictionaryRef)result);
return result;
}
static char *_CFBundleGetSectData(const char *segname, const char *sectname, unsigned long *size) {
char *retval = NULL;
unsigned long localSize = 0;
uint32_t i, numImages = _dyld_image_count();
const void *mhp = (const void *)_NSGetMachExecuteHeader();
for (i = 0; i < numImages; i++) {
if (mhp == (void *)_dyld_get_image_header(i)) {
#if TARGET_RT_64_BIT
const struct section_64 *sp = getsectbynamefromheader_64((const struct mach_header_64 *)mhp, segname, sectname);
if (sp) {
retval = (char *)(sp->addr + _dyld_get_image_vmaddr_slide(i));
localSize = (unsigned long)sp->size;
}
#else /* TARGET_RT_64_BIT */
const struct section *sp = getsectbynamefromheader((const struct mach_header *)mhp, segname, sectname);
if (sp) {
retval = (char *)(sp->addr + _dyld_get_image_vmaddr_slide(i));
localSize = (unsigned long)sp->size;
}
#endif /* TARGET_RT_64_BIT */
break;
}
}
if (size) *size = localSize;
return retval;
}
CF_PRIVATE CFMutableDictionaryRef _CFBundleCreateInfoDictFromMainExecutable() {
char *bytes = NULL;
unsigned long length = 0;
if (getsegbyname(TEXT_SEGMENT)) bytes = _CFBundleGetSectData(TEXT_SEGMENT, PLIST_SECTION, &length);
return _CFBundleCreateInfoDictFromData(bytes, length);
}
CF_PRIVATE Boolean _CFBundleGrokObjCImageInfoFromMainExecutable(uint32_t *objcVersion, uint32_t *objcFlags) {
Boolean retval = false;
uint32_t localVersion = 0, localFlags = 0;
char *bytes = NULL;
unsigned long length = 0;
#if TARGET_RT_64_BIT
if (getsegbyname(OBJC_SEGMENT_64)) bytes = _CFBundleGetSectData(OBJC_SEGMENT_64, IMAGE_INFO_SECTION_64, &length);
#else /* TARGET_RT_64_BIT */
if (getsegbyname(OBJC_SEGMENT)) bytes = _CFBundleGetSectData(OBJC_SEGMENT, IMAGE_INFO_SECTION, &length);
#endif /* TARGET_RT_64_BIT */
if (bytes && length >= 8) {
localVersion = *(uint32_t *)bytes;
localFlags = *(uint32_t *)(bytes + 4);
retval = true;
}
if (objcVersion) *objcVersion = localVersion;
if (objcFlags) *objcFlags = localFlags;
return retval;
}
static Boolean _CFBundleGrokX11FromFile(int fd, const void *bytes, CFIndex length, uint32_t offset, Boolean swapped, Boolean sixtyFour) {
static const char libX11name[] = LIB_X11;
char *buffer = NULL;
const char *loc = NULL;
unsigned i;
Boolean result = false;
if (fd >= 0 && lseek(fd, offset, SEEK_SET) == (off_t)offset) {
buffer = malloc(X11_BYTES_TO_READ);
if (buffer && read(fd, buffer, X11_BYTES_TO_READ) >= X11_BYTES_TO_READ) loc = buffer;
} else if (bytes && length >= offset + X11_BYTES_TO_READ) {
loc = bytes + offset;
}
if (loc) {
if (sixtyFour) {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)loc)->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)loc)->sizeofcmds, swapped);
const char *startofcmds = loc + sizeof(struct mach_header_64);
const char *endofcmds = startofcmds + sizeofcmds;
struct dylib_command *dlp = (struct dylib_command *)startofcmds;
if (endofcmds > loc + X11_BYTES_TO_READ) endofcmds = loc + X11_BYTES_TO_READ;
for (i = 0; !result && i < ncmds && startofcmds <= (char *)dlp && (char *)dlp < endofcmds; i++) {
if (LC_LOAD_DYLIB == _CFBundleSwapInt32Conditional(dlp->cmd, swapped)) {
uint32_t nameoffset = _CFBundleSwapInt32Conditional(dlp->dylib.name.offset, swapped);
const char *name = (const char *)dlp + nameoffset;
if (startofcmds <= name && name + sizeof(libX11name) <= endofcmds && 0 == strncmp(name, libX11name, sizeof(libX11name) - 1)) result = true;
}
dlp = (struct dylib_command *)((char *)dlp + _CFBundleSwapInt32Conditional(dlp->cmdsize, swapped));
}
} else {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header *)loc)->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header *)loc)->sizeofcmds, swapped);
const char *startofcmds = loc + sizeof(struct mach_header);
const char *endofcmds = startofcmds + sizeofcmds;
struct dylib_command *dlp = (struct dylib_command *)startofcmds;
if (endofcmds > loc + X11_BYTES_TO_READ) endofcmds = loc + X11_BYTES_TO_READ;
for (i = 0; !result && i < ncmds && startofcmds <= (char *)dlp && (char *)dlp < endofcmds; i++) {
if (LC_LOAD_DYLIB == _CFBundleSwapInt32Conditional(dlp->cmd, swapped)) {
uint32_t nameoffset = _CFBundleSwapInt32Conditional(dlp->dylib.name.offset, swapped);
const char *name = (const char *)dlp + nameoffset;
if (startofcmds <= name && name + sizeof(libX11name) <= endofcmds && 0 == strncmp(name, libX11name, sizeof(libX11name) - 1)) result = true;
}
dlp = (struct dylib_command *)((char *)dlp + _CFBundleSwapInt32Conditional(dlp->cmdsize, swapped));
}
}
}
if (buffer) free(buffer);
return result;
}
static CFDictionaryRef _CFBundleCreateInfoDictFromFile(int fd, const void *bytes, CFIndex length, uint32_t offset, Boolean swapped, Boolean sixtyFour) {
struct statinfo statBuf;
off_t fileLength = 0;
char *maploc = NULL;
const char *loc;
unsigned i, j;
CFDictionaryRef result = NULL;
Boolean foundIt = false;
if (fd >= 0 && fstat(fd, &statBuf) == 0 && (maploc = mmap(0, statBuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0)) != (void *)-1) {
loc = maploc;
fileLength = statBuf.st_size;
} else {
loc = bytes;
fileLength = length;
}
if (fileLength > offset + sizeof(struct mach_header_64)) {
if (sixtyFour) {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)(loc + offset))->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)(loc + offset))->sizeofcmds, swapped);
const char *startofcmds = loc + offset + sizeof(struct mach_header_64);
const char *endofcmds = startofcmds + sizeofcmds;
struct segment_command_64 *sgp = (struct segment_command_64 *)startofcmds;
if (endofcmds > loc + fileLength) endofcmds = loc + fileLength;
for (i = 0; !foundIt && i < ncmds && startofcmds <= (char *)sgp && (char *)sgp < endofcmds; i++) {
if (LC_SEGMENT_64 == _CFBundleSwapInt32Conditional(sgp->cmd, swapped)) {
struct section_64 *sp = (struct section_64 *)((char *)sgp + sizeof(struct segment_command_64));
uint32_t nsects = _CFBundleSwapInt32Conditional(sgp->nsects, swapped);
for (j = 0; !foundIt && j < nsects && startofcmds <= (char *)sp && (char *)sp < endofcmds; j++) {
if (0 == strncmp(sp->sectname, PLIST_SECTION, sizeof(sp->sectname)) && 0 == strncmp(sp->segname, TEXT_SEGMENT, sizeof(sp->segname))) {
uint64_t sectlength64 = _CFBundleSwapInt64Conditional(sp->size, swapped);
uint32_t sectlength = (uint32_t)(sectlength64 & 0xffffffff);
uint32_t sectoffset = _CFBundleSwapInt32Conditional(sp->offset, swapped);
const char *sectbytes = loc + offset + sectoffset;
// we don't support huge-sized plists
if (sectlength64 <= 0xffffffff && loc <= sectbytes && sectbytes + sectlength <= loc + fileLength) result = (CFDictionaryRef)_CFBundleCreateInfoDictFromData(sectbytes, sectlength);
foundIt = true;
}
sp = (struct section_64 *)((char *)sp + sizeof(struct section_64));
}
}
sgp = (struct segment_command_64 *)((char *)sgp + _CFBundleSwapInt32Conditional(sgp->cmdsize, swapped));
}
} else {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header *)(loc + offset))->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header *)(loc + offset))->sizeofcmds, swapped);
const char *startofcmds = loc + offset + sizeof(struct mach_header);
const char *endofcmds = startofcmds + sizeofcmds;
struct segment_command *sgp = (struct segment_command *)startofcmds;
if (endofcmds > loc + fileLength) endofcmds = loc + fileLength;
for (i = 0; !foundIt && i < ncmds && startofcmds <= (char *)sgp && (char *)sgp < endofcmds; i++) {
if (LC_SEGMENT == _CFBundleSwapInt32Conditional(sgp->cmd, swapped)) {
struct section *sp = (struct section *)((char *)sgp + sizeof(struct segment_command));
uint32_t nsects = _CFBundleSwapInt32Conditional(sgp->nsects, swapped);
for (j = 0; !foundIt && j < nsects && startofcmds <= (char *)sp && (char *)sp < endofcmds; j++) {
if (0 == strncmp(sp->sectname, PLIST_SECTION, sizeof(sp->sectname)) && 0 == strncmp(sp->segname, TEXT_SEGMENT, sizeof(sp->segname))) {
uint32_t sectlength = _CFBundleSwapInt32Conditional(sp->size, swapped);
uint32_t sectoffset = _CFBundleSwapInt32Conditional(sp->offset, swapped);
const char *sectbytes = loc + offset + sectoffset;
if (loc <= sectbytes && sectbytes + sectlength <= loc + fileLength) result = (CFDictionaryRef)_CFBundleCreateInfoDictFromData(sectbytes, sectlength);
foundIt = true;
}
sp = (struct section *)((char *)sp + sizeof(struct section));
}
}
sgp = (struct segment_command *)((char *)sgp + _CFBundleSwapInt32Conditional(sgp->cmdsize, swapped));
}
}
}
if (maploc) munmap(maploc, statBuf.st_size);
return result;
}
static void _CFBundleGrokObjcImageInfoFromFile(int fd, const void *bytes, CFIndex length, uint32_t offset, Boolean swapped, Boolean sixtyFour, Boolean *hasObjc, uint32_t *objcVersion, uint32_t *objcFlags) {
uint32_t sectlength = 0, sectoffset = 0, localVersion = 0, localFlags = 0;
char *buffer = NULL;
char sectbuffer[8];
const char *loc = NULL;
unsigned i, j;
Boolean foundIt = false, localHasObjc = false;
if (fd >= 0 && lseek(fd, offset, SEEK_SET) == (off_t)offset) {
buffer = malloc(IMAGE_INFO_BYTES_TO_READ);
if (buffer && read(fd, buffer, IMAGE_INFO_BYTES_TO_READ) >= IMAGE_INFO_BYTES_TO_READ) loc = buffer;
} else if (bytes && length >= offset + IMAGE_INFO_BYTES_TO_READ) {
loc = bytes + offset;
}
if (loc) {
if (sixtyFour) {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)loc)->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header_64 *)loc)->sizeofcmds, swapped);
const char *startofcmds = loc + sizeof(struct mach_header_64);
const char *endofcmds = startofcmds + sizeofcmds;
struct segment_command_64 *sgp = (struct segment_command_64 *)startofcmds;
if (endofcmds > loc + IMAGE_INFO_BYTES_TO_READ) endofcmds = loc + IMAGE_INFO_BYTES_TO_READ;
for (i = 0; !foundIt && i < ncmds && startofcmds <= (char *)sgp && (char *)sgp < endofcmds; i++) {
if (LC_SEGMENT_64 == _CFBundleSwapInt32Conditional(sgp->cmd, swapped)) {
struct section_64 *sp = (struct section_64 *)((char *)sgp + sizeof(struct segment_command_64));
uint32_t nsects = _CFBundleSwapInt32Conditional(sgp->nsects, swapped);
for (j = 0; !foundIt && j < nsects && startofcmds <= (char *)sp && (char *)sp < endofcmds; j++) {
if (0 == strncmp(sp->segname, OBJC_SEGMENT_64, sizeof(sp->segname))) localHasObjc = true;
if (0 == strncmp(sp->sectname, IMAGE_INFO_SECTION_64, sizeof(sp->sectname)) && 0 == strncmp(sp->segname, OBJC_SEGMENT_64, sizeof(sp->segname))) {
uint64_t sectlength64 = _CFBundleSwapInt64Conditional(sp->size, swapped);
sectlength = (uint32_t)(sectlength64 & 0xffffffff);
sectoffset = _CFBundleSwapInt32Conditional(sp->offset, swapped);
foundIt = true;
}
sp = (struct section_64 *)((char *)sp + sizeof(struct section_64));
}
}
sgp = (struct segment_command_64 *)((char *)sgp + _CFBundleSwapInt32Conditional(sgp->cmdsize, swapped));
}
} else {
uint32_t ncmds = _CFBundleSwapInt32Conditional(((struct mach_header *)loc)->ncmds, swapped);
uint32_t sizeofcmds = _CFBundleSwapInt32Conditional(((struct mach_header *)loc)->sizeofcmds, swapped);
const char *startofcmds = loc + sizeof(struct mach_header);
const char *endofcmds = startofcmds + sizeofcmds;
struct segment_command *sgp = (struct segment_command *)startofcmds;
if (endofcmds > loc + IMAGE_INFO_BYTES_TO_READ) endofcmds = loc + IMAGE_INFO_BYTES_TO_READ;
for (i = 0; !foundIt && i < ncmds && startofcmds <= (char *)sgp && (char *)sgp < endofcmds; i++) {
if (LC_SEGMENT == _CFBundleSwapInt32Conditional(sgp->cmd, swapped)) {
struct section *sp = (struct section *)((char *)sgp + sizeof(struct segment_command));
uint32_t nsects = _CFBundleSwapInt32Conditional(sgp->nsects, swapped);
for (j = 0; !foundIt && j < nsects && startofcmds <= (char *)sp && (char *)sp < endofcmds; j++) {
if (0 == strncmp(sp->segname, OBJC_SEGMENT, sizeof(sp->segname))) localHasObjc = true;
if (0 == strncmp(sp->sectname, IMAGE_INFO_SECTION, sizeof(sp->sectname)) && 0 == strncmp(sp->segname, OBJC_SEGMENT, sizeof(sp->segname))) {
sectlength = _CFBundleSwapInt32Conditional(sp->size, swapped);
sectoffset = _CFBundleSwapInt32Conditional(sp->offset, swapped);
foundIt = true;
}
sp = (struct section *)((char *)sp + sizeof(struct section));
}
}
sgp = (struct segment_command *)((char *)sgp + _CFBundleSwapInt32Conditional(sgp->cmdsize, swapped));
}
}
if (sectlength >= 8) {
if (fd >= 0 && lseek(fd, offset + sectoffset, SEEK_SET) == (off_t)(offset + sectoffset) && read(fd, sectbuffer, 8) >= 8) {
localVersion = _CFBundleSwapInt32Conditional(*(uint32_t *)sectbuffer, swapped);
localFlags = _CFBundleSwapInt32Conditional(*(uint32_t *)(sectbuffer + 4), swapped);
} else if (bytes && length >= offset + sectoffset + 8) {
localVersion = _CFBundleSwapInt32Conditional(*(uint32_t *)(bytes + offset + sectoffset), swapped);
localFlags = _CFBundleSwapInt32Conditional(*(uint32_t *)(bytes + offset + sectoffset + 4), swapped);
}
}
}
if (buffer) free(buffer);
if (hasObjc) *hasObjc = localHasObjc;
if (objcVersion) *objcVersion = localVersion;
if (objcFlags) *objcFlags = localFlags;
}
static UInt32 _CFBundleGrokMachTypeForFatFile(int fd, const void *bytes, CFIndex length, Boolean swap, Boolean *isX11, CFArrayRef *architectures, CFDictionaryRef *infodict, Boolean *hasObjc, uint32_t *objcVersion, uint32_t *objcFlags) {
CFIndex headerLength = length;
unsigned char headerBuffer[MAGIC_BYTES_TO_READ];
UInt32 machtype = UNKNOWN_FILETYPE, magic, numFatHeaders, maxFatHeaders, i;
unsigned char buffer[sizeof(struct mach_header_64)];
const unsigned char *moreBytes = NULL;
const NXArchInfo *archInfo = NXGetLocalArchInfo();
SInt32 curArch = _CFBundleCurrentArchitecture();
struct fat_arch *fat = NULL;
if (isX11) *isX11 = false;
if (architectures) *architectures = NULL;
if (infodict) *infodict = NULL;
if (hasObjc) *hasObjc = false;
if (objcVersion) *objcVersion = 0;
if (objcFlags) *objcFlags = 0;
if (headerLength > MAGIC_BYTES_TO_READ) headerLength = MAGIC_BYTES_TO_READ;
(void)memmove(headerBuffer, bytes, headerLength);
if (swap) {
for (i = 0; i < headerLength; i += 4) *(UInt32 *)(headerBuffer + i) = CFSwapInt32(*(UInt32 *)(headerBuffer + i));
}
numFatHeaders = ((struct fat_header *)headerBuffer)->nfat_arch;
maxFatHeaders = (headerLength - sizeof(struct fat_header)) / sizeof(struct fat_arch);
if (numFatHeaders > maxFatHeaders) numFatHeaders = maxFatHeaders;
if (numFatHeaders > 0) {
if (archInfo) fat = NXFindBestFatArch(archInfo->cputype, archInfo->cpusubtype, (struct fat_arch *)(headerBuffer + sizeof(struct fat_header)), numFatHeaders);
if (!fat && curArch != 0) fat = NXFindBestFatArch((cpu_type_t)curArch, (cpu_subtype_t)0, (struct fat_arch *)(headerBuffer + sizeof(struct fat_header)), numFatHeaders);
if (!fat) fat = (struct fat_arch *)(headerBuffer + sizeof(struct fat_header));
if (architectures) {
CFMutableArrayRef mutableArchitectures = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeArrayCallBacks);
for (i = 0; i < numFatHeaders; i++) {
CFNumberRef architecture = CFNumberCreate(kCFAllocatorSystemDefault, kCFNumberSInt32Type, headerBuffer + sizeof(struct fat_header) + i * sizeof(struct fat_arch));
if (CFArrayGetFirstIndexOfValue(mutableArchitectures, CFRangeMake(0, CFArrayGetCount(mutableArchitectures)), architecture) < 0) CFArrayAppendValue(mutableArchitectures, architecture);
CFRelease(architecture);
}
*architectures = (CFArrayRef)mutableArchitectures;
}
}
if (fat) {
if (fd >= 0 && lseek(fd, fat->offset, SEEK_SET) == (off_t)fat->offset && read(fd, buffer, sizeof(struct mach_header_64)) >= (int)sizeof(struct mach_header_64)) {
moreBytes = buffer;
} else if (bytes && (uint32_t)length >= fat->offset + sizeof(struct mach_header_64)) {
moreBytes = bytes + fat->offset;
}
if (moreBytes) {
magic = *((UInt32 *)moreBytes);
if (MH_MAGIC == magic) {
machtype = ((struct mach_header *)moreBytes)->filetype;
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, fat->offset, false, false);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, fat->offset, false, false);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, fat->offset, false, false, hasObjc, objcVersion, objcFlags);
} else if (MH_CIGAM == magic) {
machtype = CFSwapInt32(((struct mach_header *)moreBytes)->filetype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, fat->offset, true, false);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, fat->offset, true, false);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, fat->offset, true, false, hasObjc, objcVersion, objcFlags);
} else if (MH_MAGIC_64 == magic) {
machtype = ((struct mach_header_64 *)moreBytes)->filetype;
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, fat->offset, false, true);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, fat->offset, false, true);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, fat->offset, false, true, hasObjc, objcVersion, objcFlags);
} else if (MH_CIGAM_64 == magic) {
machtype = CFSwapInt32(((struct mach_header_64 *)moreBytes)->filetype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, fat->offset, true, true);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, fat->offset, true, true);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, fat->offset, true, true, hasObjc, objcVersion, objcFlags);
}
}
}
return machtype;
}
static UInt32 _CFBundleGrokMachType(int fd, const void *bytes, CFIndex length, Boolean *isX11, CFArrayRef *architectures, CFDictionaryRef *infodict, Boolean *hasObjc, uint32_t *objcVersion, uint32_t *objcFlags) {
unsigned int magic = *((UInt32 *)bytes), machtype = UNKNOWN_FILETYPE, cputype;
CFNumberRef architecture = NULL;
if (isX11) *isX11 = false;
if (architectures) *architectures = NULL;
if (infodict) *infodict = NULL;
if (hasObjc) *hasObjc = false;
if (objcVersion) *objcVersion = 0;
if (objcFlags) *objcFlags = 0;
if (MH_MAGIC == magic) {
machtype = ((struct mach_header *)bytes)->filetype;
cputype = ((struct mach_header *)bytes)->cputype;
if (architectures) architecture = CFNumberCreate(kCFAllocatorSystemDefault, kCFNumberSInt32Type, &cputype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, 0, false, false);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, 0, false, false);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, 0, false, false, hasObjc, objcVersion, objcFlags);
} else if (MH_CIGAM == magic) {
machtype = CFSwapInt32(((struct mach_header *)bytes)->filetype);
cputype = CFSwapInt32(((struct mach_header *)bytes)->cputype);
if (architectures) architecture = CFNumberCreate(kCFAllocatorSystemDefault, kCFNumberSInt32Type, &cputype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, 0, true, false);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, 0, true, false);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, 0, true, false, hasObjc, objcVersion, objcFlags);
} else if (MH_MAGIC_64 == magic) {
machtype = ((struct mach_header_64 *)bytes)->filetype;
cputype = ((struct mach_header_64 *)bytes)->cputype;
if (architectures) architecture = CFNumberCreate(kCFAllocatorSystemDefault, kCFNumberSInt32Type, &cputype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, 0, false, true);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, 0, false, true);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, 0, false, true, hasObjc, objcVersion, objcFlags);
} else if (MH_CIGAM_64 == magic) {
machtype = CFSwapInt32(((struct mach_header_64 *)bytes)->filetype);
cputype = CFSwapInt32(((struct mach_header_64 *)bytes)->cputype);
if (architectures) architecture = CFNumberCreate(kCFAllocatorSystemDefault, kCFNumberSInt32Type, &cputype);
if (isX11 && MH_EXECUTE == machtype) *isX11 = _CFBundleGrokX11FromFile(fd, bytes, length, 0, true, true);
if (infodict) *infodict = _CFBundleCreateInfoDictFromFile(fd, bytes, length, 0, true, true);
if (hasObjc || objcVersion || objcFlags) _CFBundleGrokObjcImageInfoFromFile(fd, bytes, length, 0, true, true, hasObjc, objcVersion, objcFlags);
} else if (FAT_MAGIC == magic) {
machtype = _CFBundleGrokMachTypeForFatFile(fd, bytes, length, false, isX11, architectures, infodict, hasObjc, objcVersion, objcFlags);
} else if (FAT_CIGAM == magic) {
machtype = _CFBundleGrokMachTypeForFatFile(fd, bytes, length, true, isX11, architectures, infodict, hasObjc, objcVersion, objcFlags);
} else if (PEF_MAGIC == magic || PEF_CIGAM == magic) {
machtype = PEF_FILETYPE;
}
if (architectures && architecture) *architectures = CFArrayCreate(kCFAllocatorSystemDefault, (const void **)&architecture, 1, &kCFTypeArrayCallBacks);
if (architecture) CFRelease(architecture);
return machtype;
}
#endif /* BINARY_SUPPORT_DYLD */
static Boolean _CFBundleGrokFileTypeForZipMimeType(const unsigned char *bytes, CFIndex length, const char **ext) {
unsigned namelength = CFSwapInt16HostToLittle(*((UInt16 *)(bytes + 26))), extralength = CFSwapInt16HostToLittle(*((UInt16 *)(bytes + 28)));
const unsigned char *data = bytes + 30 + namelength + extralength;
int i = -1;
if (bytes < data && data + 56 <= bytes + length && 0 == CFSwapInt16HostToLittle(*((UInt16 *)(bytes + 8))) && (0 == ustrncasecmp(data, "application/vnd.", 16) || 0 == ustrncasecmp(data, "application/x-vnd.", 18))) {
data += ('.' == *(data + 15)) ? 16 : 18;
if (0 == ustrncasecmp(data, "sun.xml.", 8)) {
data += 8;
if (0 == ustrncasecmp(data, "calc", 4)) i = 0;
else if (0 == ustrncasecmp(data, "draw", 4)) i = 1;
else if (0 == ustrncasecmp(data, "writer.global", 13)) i = 2;
else if (0 == ustrncasecmp(data, "impress", 7)) i = 3;
else if (0 == ustrncasecmp(data, "math", 4)) i = 4;
else if (0 == ustrncasecmp(data, "writer", 6)) i = 5;
if (i >= 0 && ext) *ext = __CFBundleOOExtensionsArray + i * EXTENSION_LENGTH;
} else if (0 == ustrncasecmp(data, "oasis.opendocument.", 19)) {
data += 19;
if (0 == ustrncasecmp(data, "chart", 5)) i = 0;
else if (0 == ustrncasecmp(data, "formula", 7)) i = 1;
else if (0 == ustrncasecmp(data, "graphics", 8)) i = 2;
else if (0 == ustrncasecmp(data, "text-web", 8)) i = 3;
else if (0 == ustrncasecmp(data, "image", 5)) i = 4;
else if (0 == ustrncasecmp(data, "text-master", 11)) i = 5;
else if (0 == ustrncasecmp(data, "presentation", 12)) i = 6;
else if (0 == ustrncasecmp(data, "spreadsheet", 11)) i = 7;
else if (0 == ustrncasecmp(data, "text", 4)) i = 8;
if (i >= 0 && ext) *ext = __CFBundleODExtensionsArray + i * EXTENSION_LENGTH;
}
} else if (bytes < data && data + 41 <= bytes + length && 8 == CFSwapInt16HostToLittle(*((UInt16 *)(bytes + 8))) && 0x4b2c28c8 == CFSwapInt32HostToBig(*((UInt32 *)data)) && 0xc94c4e2c == CFSwapInt32HostToBig(*((UInt32 *)(data + 4)))) {
// AbiWord compressed mimetype odt
if (ext) *ext = "odt";
// almost certainly this should set i to 0 but I don't want to upset the apple cart now
} else if (bytes < data && data + 29 <= bytes + length && (0 == ustrncasecmp(data, "application/oebps-package+xml", 29))) {
// epub, official epub 3 mime type
if (ext) *ext = "epub";
i = 0;
} else if (bytes < data && data + 20 <= bytes + length && (0 == ustrncasecmp(data, "application/epub+zip", 20))) {
// epub, unofficial epub 2 mime type
if (ext) *ext = "epub";
i = 0;
}
return (i >= 0);
}
static const char *_CFBundleGrokFileTypeForZipFile(int fd, const unsigned char *bytes, CFIndex length, off_t fileLength) {
const char *ext = "zip";
const unsigned char *moreBytes = NULL;
unsigned char *buffer = NULL;
CFIndex i;
Boolean foundMimetype = false, hasMetaInf = false, hasContentXML = false, hasManifestMF = false, hasManifestXML = false, hasRels = false, hasContentTypes = false, hasWordDocument = false, hasExcelDocument = false, hasPowerPointDocument = false, hasOPF = false, hasSMIL = false;
if (bytes) {
for (i = 0; !foundMimetype && i + 30 < length; i++) {
if (0x50 == bytes[i] && 0x4b == bytes[i + 1]) {
unsigned namelength = 0, offset = 0;
if (0x01 == bytes[i + 2] && 0x02 == bytes[i + 3]) {
namelength = (unsigned)CFSwapInt16HostToLittle(*((UInt16 *)(bytes + i + 28)));
offset = 46;
} else if (0x03 == bytes[i + 2] && 0x04 == bytes[i + 3]) {
namelength = (unsigned)CFSwapInt16HostToLittle(*((UInt16 *)(bytes + i + 26)));
offset = 30;
}
if (offset > 0 && (CFIndex)(i + offset + namelength) <= length) {
//printf("%.*s\n", namelength, bytes + i + offset);
if (8 == namelength && 30 == offset && 0 == ustrncasecmp(bytes + i + offset, "mimetype", 8)) foundMimetype = _CFBundleGrokFileTypeForZipMimeType(bytes + i, length - i, &ext);
else if (9 == namelength && 0 == ustrncasecmp(bytes + i + offset, "META-INF/", 9)) hasMetaInf = true;
else if (11 == namelength && 0 == ustrncasecmp(bytes + i + offset, "content.xml", 11)) hasContentXML = true;
else if (11 == namelength && 0 == ustrncasecmp(bytes + i + offset, "_rels/.rels", 11)) hasRels = true;
else if (19 == namelength && 0 == ustrncasecmp(bytes + i + offset, "[Content_Types].xml", 19)) hasContentTypes = true;
else if (20 == namelength && 0 == ustrncasecmp(bytes + i + offset, "META-INF/MANIFEST.MF", 20)) hasManifestMF = true;
else if (21 == namelength && 0 == ustrncasecmp(bytes + i + offset, "META-INF/manifest.xml", 21)) hasManifestXML = true;
else if (4 < namelength && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".opf", 4)) hasOPF = true;
else if (4 < namelength && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".sml", 4)) hasSMIL = true;
else if (5 < namelength && 0 == ustrncasecmp(bytes + i + offset + namelength - 5, ".smil", 5)) hasSMIL = true;
else if (7 < namelength && 0 == ustrncasecmp(bytes + i + offset, "xl/", 3) && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".xml", 4)) hasExcelDocument = true;
else if (8 < namelength && 0 == ustrncasecmp(bytes + i + offset, "ppt/", 4) && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".xml", 4)) hasPowerPointDocument = true;
else if (9 < namelength && 0 == ustrncasecmp(bytes + i + offset, "word/", 5) && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".xml", 4)) hasWordDocument = true;
else if (10 < namelength && 0 == ustrncasecmp(bytes + i + offset, "excel/", 6) && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".xml", 4)) hasExcelDocument = true;
else if (15 < namelength && 0 == ustrncasecmp(bytes + i + offset, "powerpoint/", 11) && 0 == ustrncasecmp(bytes + i + offset + namelength - 4, ".xml", 4)) hasPowerPointDocument = true;
i += offset + namelength - 1;
}
}
}
}
if (!foundMimetype) {
if (fileLength >= ZIP_BYTES_TO_READ) {
if (fd >= 0 && lseek(fd, fileLength - ZIP_BYTES_TO_READ, SEEK_SET) == fileLength - ZIP_BYTES_TO_READ) {
buffer = (unsigned char *)malloc(ZIP_BYTES_TO_READ);
if (buffer && read(fd, buffer, ZIP_BYTES_TO_READ) >= ZIP_BYTES_TO_READ) moreBytes = buffer;
} else if (bytes && length >= ZIP_BYTES_TO_READ) {
moreBytes = bytes + length - ZIP_BYTES_TO_READ;
}
}
if (moreBytes) {
for (i = 0; i + 30 < ZIP_BYTES_TO_READ; i++) {
if (0x50 == moreBytes[i] && 0x4b == moreBytes[i + 1]) {
unsigned namelength = 0, offset = 0;
if (0x01 == moreBytes[i + 2] && 0x02 == moreBytes[i + 3]) {
namelength = CFSwapInt16HostToLittle(*((UInt16 *)(moreBytes + i + 28)));
offset = 46;
} else if (0x03 == moreBytes[i + 2] && 0x04 == moreBytes[i + 3]) {
namelength = CFSwapInt16HostToLittle(*((UInt16 *)(moreBytes + i + 26)));
offset = 30;
}
if (offset > 0 && i + offset + namelength <= ZIP_BYTES_TO_READ) {
//printf("%.*s\n", namelength, moreBytes + i + offset);
if (9 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "META-INF/", 9)) hasMetaInf = true;
else if (11 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "content.xml", 11)) hasContentXML = true;
else if (11 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "_rels/.rels", 11)) hasRels = true;
else if (19 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "[Content_Types].xml", 19)) hasContentTypes = true;
else if (20 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "META-INF/MANIFEST.MF", 20)) hasManifestMF = true;
else if (21 == namelength && 0 == ustrncasecmp(moreBytes + i + offset, "META-INF/manifest.xml", 21)) hasManifestXML = true;
else if (4 < namelength && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".opf", 4)) hasOPF = true;
else if (4 < namelength && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".sml", 4)) hasSMIL = true;
else if (5 < namelength && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 5, ".smil", 5)) hasSMIL = true;
else if (7 < namelength && 0 == ustrncasecmp(moreBytes + i + offset, "xl/", 3) && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".xml", 4)) hasExcelDocument = true;
else if (8 < namelength && 0 == ustrncasecmp(moreBytes + i + offset, "ppt/", 4) && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".xml", 4)) hasPowerPointDocument = true;
else if (9 < namelength && 0 == ustrncasecmp(moreBytes + i + offset, "word/", 5) && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".xml", 4)) hasWordDocument = true;
else if (10 < namelength && 0 == ustrncasecmp(moreBytes + i + offset, "excel/", 6) && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".xml", 4)) hasExcelDocument = true;
else if (15 < namelength && 0 == ustrncasecmp(moreBytes + i + offset, "powerpoint/", 11) && 0 == ustrncasecmp(moreBytes + i + offset + namelength - 4, ".xml", 4)) hasPowerPointDocument = true;
i += offset + namelength - 1;
}
}
}
}
//printf("hasManifestMF %d hasManifestXML %d hasContentXML %d hasRels %d hasContentTypes %d hasWordDocument %d hasExcelDocument %d hasPowerPointDocument %d hasMetaInf %d hasOPF %d hasSMIL %d\n", hasManifestMF, hasManifestXML, hasContentXML, hasRels, hasContentTypes, hasWordDocument, hasExcelDocument, hasPowerPointDocument, hasMetaInf, hasOPF, hasSMIL);
if (hasManifestMF) ext = "jar";
else if ((hasRels || hasContentTypes) && hasWordDocument) ext = "docx";
else if ((hasRels || hasContentTypes) && hasExcelDocument) ext = "xlsx";
else if ((hasRels || hasContentTypes) && hasPowerPointDocument) ext = "pptx";
else if (hasManifestXML || hasContentXML) ext = "odt";
else if (hasMetaInf) ext = "jar";
else if (hasOPF && hasSMIL) ext = "dtb";
else if (hasOPF) ext = "oeb";
if (buffer) free(buffer);
}
return ext;
}
static Boolean _CFBundleCheckOLEName(const char *name, const char *bytes, unsigned length) {
Boolean retval = true;
unsigned j;
for (j = 0; retval && j < length; j++) if (bytes[2 * j] != name[j]) retval = false;
return retval;
}
static const char *_CFBundleGrokFileTypeForOLEFile(int fd, const void *bytes, CFIndex length, off_t offset) {
const char *ext = "ole", *moreBytes = NULL;
char *buffer = NULL;
if (fd >= 0 && lseek(fd, offset, SEEK_SET) == (off_t)offset) {
buffer = (char *)malloc(OLE_BYTES_TO_READ);
if (buffer && read(fd, buffer, OLE_BYTES_TO_READ) >= OLE_BYTES_TO_READ) moreBytes = buffer;
} else if (bytes && length >= offset + OLE_BYTES_TO_READ) {
moreBytes = (char *)bytes + offset;
}
if (moreBytes) {
Boolean foundIt = false;
unsigned i;
for (i = 0; !foundIt && i < 4; i++) {
char namelength = moreBytes[128 * i + 64] / 2;
foundIt = true;
if (sizeof(XLS_NAME) == namelength && _CFBundleCheckOLEName(XLS_NAME, moreBytes + 128 * i, namelength - 1)) ext = "xls";
else if (sizeof(XLS_NAME2) == namelength && _CFBundleCheckOLEName(XLS_NAME2, moreBytes + 128 * i, namelength - 1)) ext = "xls";
else if (sizeof(DOC_NAME) == namelength && _CFBundleCheckOLEName(DOC_NAME, moreBytes + 128 * i, namelength - 1)) ext = "doc";
else if (sizeof(PPT_NAME) == namelength && _CFBundleCheckOLEName(PPT_NAME, moreBytes + 128 * i, namelength - 1)) ext = "ppt";
else foundIt = false;
}
}
if (buffer) free(buffer);
return ext;
}
static Boolean _CFBundleGrokFileType(CFURLRef url, CFDataRef data, CFStringRef *extension, UInt32 *machtype, CFArrayRef *architectures, CFDictionaryRef *infodict, Boolean *hasObjc, uint32_t *objcVersion, uint32_t *objcFlags) {
int fd = -1;
const unsigned char *bytes = NULL;
unsigned char buffer[MAGIC_BYTES_TO_READ];
CFIndex i, length = 0;
off_t fileLength = 0;
const char *ext = NULL;
UInt32 mt = UNKNOWN_FILETYPE;
#if defined(BINARY_SUPPORT_DYLD)
Boolean isX11 = false;
#endif /* BINARY_SUPPORT_DYLD */
Boolean isFile = false, isPlain = true, isZero = true, isSpace = true, hasBOM = false;
// extensions returned: o, tool, x11app, pef, core, dylib, bundle, elf, jpeg, jp2, tiff, gif, png, pict, icns, ico, rtf, rtfd, pdf, ra, rm, au, aiff, aifc, caf, wav, avi, wmv, ogg, flac, psd, mpeg, mid, zip, jar, sit, cpio, html, ps, mov, qtif, ttf, otf, sfont, bmp, hqx, bin, class, tar, txt, gz, Z, uu, ync, bz, bz2, sh, pl, py, rb, dvi, sgi, tga, mp3, xml, plist, xls, doc, ppt, mp4, m4a, m4b, m4p, m4v, 3gp, 3g2, dmg, cwk, webarchive, dwg, dgn, pfa, pfb, afm, tfm, xcf, cpx, dwf, swf, swc, abw, bom, lit, svg, rdf, x3d, oeb, dtb, docx, xlsx, pptx, sxc, sxd, sxg, sxi, sxm, sxw, odc, odf, odg, oth, odi, odm, odp, ods, cin, exr
// ??? we do not distinguish between different wm types, returning wmv for any of wmv, wma, or asf
// ??? we do not distinguish between ordinary documents and template versions (often there is no difference in file contents)
// ??? the distinctions between docx, xlsx, and pptx may not be entirely reliable
if (architectures) *architectures = NULL;
if (infodict) *infodict = NULL;
if (hasObjc) *hasObjc = false;
if (objcVersion) *objcVersion = 0;
if (objcFlags) *objcFlags = 0;
if (url) {
Boolean gotPath = FALSE;
char path[CFMaxPathSize];
gotPath = CFURLGetFileSystemRepresentation(url, true, (uint8_t *)path, CFMaxPathSize);
struct statinfo statBuf;
if (gotPath && stat(path, &statBuf) == 0 && (statBuf.st_mode & S_IFMT) == S_IFREG && (fd = open(path, O_RDONLY | CF_OPENFLGS, 0777)) >= 0) {
length = read(fd, buffer, MAGIC_BYTES_TO_READ);
fileLength = statBuf.st_size;
bytes = buffer;
isFile = true;
}
}
if (!isFile && data) {
length = CFDataGetLength(data);
fileLength = (off_t)length;
bytes = CFDataGetBytePtr(data);
if (length == 0) ext = "txt";
}
if (bytes) {
if (length >= 4) {
UInt32 magic = CFSwapInt32HostToBig(*((UInt32 *)bytes));
for (i = 0; !ext && i < NUM_EXTENSIONS; i++) {
if (__CFBundleMagicNumbersArray[i] == magic) ext = __CFBundleExtensionsArray + i * EXTENSION_LENGTH;
}
if (ext) {
if (0xcafebabe == magic && 8 <= length && 0 != *((UInt16 *)(bytes + 4))) ext = "class";
#if defined(BINARY_SUPPORT_DYLD)
else if ((int)sizeof(struct mach_header_64) <= length) mt = _CFBundleGrokMachType(fd, bytes, length, extension ? &isX11 : NULL, architectures, infodict, hasObjc, objcVersion, objcFlags);
if (MH_OBJECT == mt) ext = "o";
else if (MH_EXECUTE == mt) ext = isX11 ? "x11app" : "tool";
else if (PEF_FILETYPE == mt) ext = "pef";
else if (MH_CORE == mt) ext = "core";
else if (MH_DYLIB == mt) ext = "dylib";
else if (MH_BUNDLE == mt) ext = "bundle";
#endif /* BINARY_SUPPORT_DYLD */
else if (0x7b5c7274 == magic && (6 > length || 'f' != bytes[4])) ext = NULL;
else if (0x25504446 == magic && (6 > length || '-' != bytes[4])) ext = NULL;
else if (0x00010000 == magic && (6 > length || 0 != bytes[4])) ext = NULL;
else if (0x47494638 == magic && (6 > length || (0x3761 != CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4))) && 0x3961 != CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4)))))) ext = NULL;
else if (0x0000000c == magic && (6 > length || 0x6a50 != CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4))))) ext = NULL;
else if (0x2356524d == magic && (6 > length || 0x4c20 != CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4))))) ext = NULL;
else if (0x28445746 == magic && (6 > length || 0x2056 != CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4))))) ext = NULL;
else if (0x30373037 == magic && (6 > length || 0x30 != bytes[4] || !isdigit(bytes[5]))) ext = NULL;
else if (0x41433130 == magic && (6 > length || 0x31 != bytes[4] || !isdigit(bytes[5]))) ext = NULL;
else if (0x89504e47 == magic && (8 > length || 0x0d0a1a0a != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x53747566 == magic && (8 > length || 0x66497420 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x3026b275 == magic && (8 > length || 0x8e66cf11 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x67696d70 == magic && (8 > length || 0x20786366 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x424f4d53 == magic && (8 > length || 0x746f7265 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x49544f4c == magic && (8 > length || 0x49544c53 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x72746664 == magic && (8 > length || 0x00000000 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = NULL;
else if (0x3d796265 == magic && (12 > length || 0x67696e20 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))) || (0x6c696e65 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8))) && 0x70617274 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8)))))) ext = NULL;
else if (0x63616666 == magic && (12 > length || 0 != bytes[4] || 0x64657363 != CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8))))) ext = NULL;
else if (0x504b0304 == magic) ext = _CFBundleGrokFileTypeForZipFile(fd, bytes, length, fileLength);
else if (0x25215053 == magic) {
if (11 <= length && 0 == ustrncmp(bytes + 4, "-Adobe-", 7)) ext = "ps";
else if (14 <= length && 0 == ustrncmp(bytes + 4, "-AdobeFont", 10)) ext = "pfa";
else ext = NULL;
} else if (0x464f524d == magic) {
// IFF
ext = NULL;
if (12 <= length) {
UInt32 iffMagic = CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8)));
if (0x41494646 == iffMagic) ext = "aiff";
else if (0x414946 == iffMagic) ext = "aifc";
}
} else if (0x52494646 == magic) {
// RIFF
ext = NULL;
if (12 <= length) {
UInt32 riffMagic = CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8)));
if (0x57415645 == riffMagic) ext = "wav";
else if (0x41564920 == riffMagic) ext = "avi";
}
} else if (0xd0cf11e0 == magic) {
// OLE
if (52 <= length) ext = _CFBundleGrokFileTypeForOLEFile(fd, bytes, length, 512 * (1 + CFSwapInt32HostToLittle(*((UInt32 *)(bytes + 48)))));
} else if (0x62656769 == magic) {
// uu
ext = NULL;
if (76 <= length && 'n' == bytes[4] && ' ' == bytes[5] && isdigit(bytes[6]) && isdigit(bytes[7]) && isdigit(bytes[8]) && ' ' == bytes[9]) {
CFIndex endOfLine = 0;
for (i = 10; 0 == endOfLine && i < length; i++) if ('\n' == bytes[i]) endOfLine = i;
if (10 <= endOfLine && endOfLine + 62 < length && 'M' == bytes[endOfLine + 1] && '\n' == bytes[endOfLine + 62]) {
ext = "uu";
for (i = endOfLine + 1; ext && i < endOfLine + 62; i++) if (!isprint(bytes[i])) ext = NULL;
}
}
}
}
if (extension && !ext) {
UInt16 shortMagic = CFSwapInt16HostToBig(*((UInt16 *)bytes));
if (5 <= length && 0 == bytes[3] && 0 == bytes[4] && ((1 == bytes[1] && 1 == (0xf7 & bytes[2])) || (0 == bytes[1] && (2 == (0xf7 & bytes[2]) || (3 == (0xf7 & bytes[2])))))) ext = "tga";
else if (8 <= length && (0x6d6f6f76 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))) || 0x6d646174 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))) || 0x77696465 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = "mov";
else if (8 <= length && (0x69647363 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))) || 0x69646174 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = "qtif";
else if (8 <= length && 0x424f424f == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4)))) ext = "cwk";
else if (8 <= length && 0x62706c69 == magic && 0x7374 == CFSwapInt16HostToBig(*((UInt16 *)(bytes + 4))) && isdigit(bytes[6]) && isdigit(bytes[7])) {
for (i = 8; !ext && i < 128 && i + 16 <= length; i++) {
if (0 == ustrncmp(bytes + i, "WebMainResource", 15)) ext = "webarchive";
}
if (!ext) ext = "plist";
} else if (0 == shortMagic && 12 <= length && 0x66747970 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4)))) {
// ??? may want more ftyp values
UInt32 ftyp = CFSwapInt32HostToBig(*((UInt32 *)(bytes + 8)));
if (0x6d703431 == ftyp || 0x6d703432 == ftyp || 0x69736f6d == ftyp || 0x69736f32 == ftyp) ext = "mp4";
else if (0x4d344120 == ftyp) ext = "m4a";
else if (0x4d344220 == ftyp) ext = "m4b";
else if (0x4d345020 == ftyp) ext = "m4p";
else if (0x4d345620 == ftyp || 0x4d345648 == ftyp || 0x4d345650 == ftyp) ext = "m4v";
else if (0x3367 == (ftyp >> 16)) {
UInt16 remainder = (ftyp & 0xffff);
if (0x6536 == remainder || 0x6537 == remainder || 0x6736 == remainder || 0x7034 == remainder || 0x7035 == remainder || 0x7036 == remainder || 0x7236 == remainder || 0x7336 == remainder || 0x7337 == remainder) ext = "3gp";
else if (0x3261 == remainder) ext = "3g2";
}
} else if (0x424d == shortMagic && 18 <= length) {
UInt32 btyp = CFSwapInt32HostToLittle(*((UInt32 *)(bytes + 14)));
if (40 == btyp || btyp == 12 || btyp == 64 || btyp == 108 || btyp == 124) ext = "bmp";
} else if (20 <= length && 0 == ustrncmp(bytes + 6, "%!PS-AdobeFont", 14)) ext = "pfb";
else if (40 <= length && 0x42696e48 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 34))) && 0x6578 == CFSwapInt16HostToBig(*((UInt16 *)(bytes + 38)))) ext = "hqx";
else if (128 <= length && 0x6d42494e == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 102)))) ext = "bin";
else if (128 <= length && 0 == bytes[0] && 0 < bytes[1] && bytes[1] < 64 && 0 == bytes[74] && 0 == bytes[82] && 0 == (fileLength % 128)) {
UInt32 df = CFSwapInt32HostToBig(*((UInt32 *)(bytes + 83))), rf = CFSwapInt32HostToBig(*((UInt32 *)(bytes + 87))), blocks = 1 + (df + 127) / 128 + (rf + 127) / 128;
if (df < 0x00800000 && rf < 0x00800000 && 1 < blocks && (off_t)(128 * blocks) == fileLength) ext = "bin";
} else if (265 <= length && 0x75737461 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 257))) && (0x72202000 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 261))) || 0x7200 == CFSwapInt16HostToBig(*((UInt16 *)(bytes + 261))))) ext = "tar";
else if (0xfeff == shortMagic || 0xfffe == shortMagic) {
ext = "txt";
if (12 <= length && ((0x3cfeff == *((UInt32 *)bytes) && 0x740068 == *((UInt32 *)(bytes + 4)) && 0x6c006d == *((UInt32 *)(bytes + 8))) || (0xfffe3c00 == *((UInt32 *)bytes) && 0x68007400 == *((UInt32 *)(bytes + 4)) && 0x6d006c00 == *((UInt32 *)(bytes + 8))))) ext = "html";
} else if (0x1f9d == shortMagic) ext = "Z";
else if (0x1f8b == shortMagic) ext = "gz";
else if (0x71c7 == shortMagic || 0xc771 == shortMagic) ext = "cpio";
else if (0xf702 == shortMagic) ext = "dvi";
else if (0x01da == shortMagic && (0 == bytes[2] || 1 == bytes[2]) && (0 < bytes[3] && 16 > bytes[3])) ext = "sgi";
else if (0x2321 == shortMagic) {
CFIndex endOfLine = 0, lastSlash = 0;
for (i = 2; 0 == endOfLine && i < length; i++) if ('\n' == bytes[i]) endOfLine = i;
if (endOfLine > 3) {
for (i = endOfLine - 1; 0 == lastSlash && i > 1; i--) if ('/' == bytes[i]) lastSlash = i;
if (lastSlash > 0) {
if (0 == ustrncmp(bytes + lastSlash + 1, "perl", 4)) ext = "pl";
else if (0 == ustrncmp(bytes + lastSlash + 1, "python", 6)) ext = "py";
else if (0 == ustrncmp(bytes + lastSlash + 1, "ruby", 4)) ext = "rb";
else ext = "sh";
}
}
} else if (0xffd8 == shortMagic && 0xff == bytes[2]) ext = "jpeg";
else if (0x4657 == shortMagic && 0x53 == bytes[2]) ext = "swf";
else if (0x4357 == shortMagic && 0x53 == bytes[2]) ext = "swc";
else if (0x4944 == shortMagic && '3' == bytes[2] && 0x20 > bytes[3]) ext = "mp3";
else if (0x425a == shortMagic && isdigit(bytes[2]) && isdigit(bytes[3])) ext = "bz";
else if (0x425a == shortMagic && 'h' == bytes[2] && isdigit(bytes[3]) && 8 <= length && (0x31415926 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))) || 0x17724538 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 4))))) ext = "bz2";
else if (0x0011 == CFSwapInt16HostToBig(*((UInt16 *)(bytes + 2))) || 0x0012 == CFSwapInt16HostToBig(*((UInt16 *)(bytes + 2)))) ext = "tfm";
}
}
if (extension && !ext) {
//??? what about MacOSRoman?
if (0xef == bytes[0] && 0xbb == bytes[1] && 0xbf == bytes[2]) { // UTF-8 BOM
hasBOM = true;
isZero = false;
}
for (i = (hasBOM ? 3 : 0); (isPlain || isZero) && !ext && i < length && i < 512; i++) {
char c = bytes[i];
if (isPlain && '<' == c && i + 14 <= length && 0 == ustrncasecmp(bytes + i + 1, "!doctype html", 13)) ext = "html";
if (isSpace && '<' == c && i + 14 <= length) {
if (0 == ustrncasecmp(bytes + i + 1, "!doctype html", 13) || 0 == ustrncasecmp(bytes + i + 1, "head", 4) || 0 == ustrncasecmp(bytes + i + 1, "title", 5) || 0 == ustrncasecmp(bytes + i + 1, "script", 6) || 0 == ustrncasecmp(bytes + i + 1, "html", 4)) {
ext = "html";
} else if (0 == ustrncasecmp(bytes + i + 1, "?xml", 4)) {
for (i += 4; !ext && i < 128 && i + 20 <= length; i++) {
if ('<' == bytes[i]) {
if (0 == ustrncasecmp(bytes + i + 1, "abiword", 7)) ext = "abw";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype svg", 12)) ext = "svg";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype rdf", 12)) ext = "rdf";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype x3d", 12)) ext = "x3d";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype html", 13)) ext = "html";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype posingfont", 19)) ext = "sfont";
else if (0 == ustrncasecmp(bytes + i + 1, "!doctype plist", 14)) {
for (i += 14; !ext && i < 256 && i + 16 <= length; i++) {
if (0 == ustrncmp(bytes + i, "WebMainResource", 15)) ext = "webarchive";
}
if (!ext) ext = "plist";
}
}
}
if (!ext) ext = "xml";
}
}
if (0 != c) isZero = false;
if (isZero || 0x7f <= c || (0x20 > c && !isspace(c))) isPlain = false;
if (isZero || !isspace(c)) isSpace = false;
}
if (!ext) {
if (isPlain) {
if (16 <= length && 0 == ustrncmp(bytes, "StartFontMetrics", 16)) ext = "afm";
else ext = "txt";
} else if (isZero && length >= MAGIC_BYTES_TO_READ && fileLength >= 526) {
if (isFile) {
if (lseek(fd, 512, SEEK_SET) == 512 && read(fd, buffer, MAGIC_BYTES_TO_READ) >= 14) {
if (0x001102ff == CFSwapInt32HostToBig(*((UInt32 *)(buffer + 10)))) ext = "pict";
}
} else {
if (526 <= length && 0x001102ff == CFSwapInt32HostToBig(*((UInt32 *)(bytes + 522)))) ext = "pict";
}
}
}
}
if (extension && (!ext || 0 == strcmp(ext, "bz2")) && length >= MAGIC_BYTES_TO_READ && fileLength >= DMG_BYTES_TO_READ) {
if (isFile) {
if (lseek(fd, fileLength - DMG_BYTES_TO_READ, SEEK_SET) == fileLength - DMG_BYTES_TO_READ && read(fd, buffer, DMG_BYTES_TO_READ) >= DMG_BYTES_TO_READ) {
if (0x6b6f6c79 == CFSwapInt32HostToBig(*((UInt32 *)buffer)) || (0x63647361 == CFSwapInt32HostToBig(*((UInt32 *)(buffer + DMG_BYTES_TO_READ - 8))) && 0x656e6372 == CFSwapInt32HostToBig(*((UInt32 *)(buffer + DMG_BYTES_TO_READ - 4))))) ext = "dmg";
}
} else {
if (DMG_BYTES_TO_READ <= length && (0x6b6f6c79 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + length - DMG_BYTES_TO_READ))) || (0x63647361 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + length - 8))) && 0x656e6372 == CFSwapInt32HostToBig(*((UInt32 *)(bytes + length - 4)))))) ext = "dmg";
}
}
}
if (extension) *extension = ext ? CFStringCreateWithCStringNoCopy(kCFAllocatorSystemDefault, ext, kCFStringEncodingUTF8, kCFAllocatorNull) : NULL;
if (machtype) *machtype = mt;
if (fd >= 0) close(fd);
return (ext ? true : false);
}
CFStringRef _CFBundleCopyFileTypeForFileURL(CFURLRef url) {
CFStringRef extension = NULL;
(void)_CFBundleGrokFileType(url, NULL, &extension, NULL, NULL, NULL, NULL, NULL, NULL);
return extension;
}
CFStringRef _CFBundleCopyFileTypeForFileData(CFDataRef data) {
CFStringRef extension = NULL;
(void)_CFBundleGrokFileType(NULL, data, &extension, NULL, NULL, NULL, NULL, NULL, NULL);
return extension;
}
CF_EXPORT CFDictionaryRef _CFBundleCopyInfoDictionaryForExecutableFileData(CFDataRef data, bool *canContainInfoPlist) {
CFDictionaryRef result = NULL;
UInt32 machtype = 0;
(void)_CFBundleGrokFileType(NULL, data, NULL, &machtype, NULL, &result, NULL, NULL, NULL);
if (canContainInfoPlist) {
#if TARGET_OS_MAC
if (machtype == MH_EXECUTE || machtype == MH_DYLIB) {
*canContainInfoPlist = true;
} else {
*canContainInfoPlist = false;
}
#else
*canContainInfoPlist = false;
#endif
}
return result;
}
CF_PRIVATE CFDictionaryRef _CFBundleCopyInfoDictionaryInExecutable(CFURLRef url) {
CFDictionaryRef result = NULL;
(void)_CFBundleGrokFileType(url, NULL, NULL, NULL, NULL, &result, NULL, NULL, NULL);
return result;
}
CF_PRIVATE CFArrayRef _CFBundleCopyArchitecturesForExecutable(CFURLRef url) {
CFArrayRef result = NULL;
(void)_CFBundleGrokFileType(url, NULL, NULL, NULL, &result, NULL, NULL, NULL, NULL);
return result;
}
#if TARGET_OS_MAC
static Boolean _CFBundleGetObjCImageInfoForExecutable(CFURLRef url, uint32_t *objcVersion, uint32_t *objcFlags) {
Boolean retval = false;
(void)_CFBundleGrokFileType(url, NULL, NULL, NULL, NULL, NULL, &retval, objcVersion, objcFlags);
return retval;
}
CF_PRIVATE Boolean _CFBundleGetObjCImageInfo(CFBundleRef bundle, uint32_t *objcVersion, uint32_t *objcFlags) {
Boolean retval = false;
uint32_t localVersion = 0, localFlags = 0;
CFURLRef executableURL = CFBundleCopyExecutableURL(bundle);
if (executableURL) {
retval = _CFBundleGetObjCImageInfoForExecutable(executableURL, &localVersion, &localFlags);
CFRelease(executableURL);
}
if (objcVersion) *objcVersion = localVersion;
if (objcFlags) *objcFlags = localFlags;
return retval;
}
#endif
#if defined(BINARY_SUPPORT_DYLD)
CF_PRIVATE __CFPBinaryType _CFBundleGrokBinaryType(CFURLRef executableURL) {
// Attempt to grok the type of the binary by looking for DYLD magic numbers. If one of the DYLD magic numbers is found, find out what type of Mach-o file it is. Otherwise, look for the PEF magic numbers to see if it is CFM.
__CFPBinaryType result = executableURL ? __CFBundleUnreadableBinary : __CFBundleNoBinary;
UInt32 machtype = UNKNOWN_FILETYPE;
if (_CFBundleGrokFileType(executableURL, NULL, NULL, &machtype, NULL, NULL, NULL, NULL, NULL)) {