-
-
Notifications
You must be signed in to change notification settings - Fork 49
Expand file tree
/
Copy pathtclUnixInit.c
More file actions
1070 lines (961 loc) · 29 KB
/
tclUnixInit.c
File metadata and controls
1070 lines (961 loc) · 29 KB
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
/*
* tclUnixInit.c --
*
* Contains the Unix-specific interpreter initialization functions.
*
* Copyright © 1995-1997 Sun Microsystems, Inc.
* Copyright © 1999 Scriptics Corporation.
* All rights reserved.
*/
#include "tclInt.h"
#ifdef HAVE_LANGINFO
# include <langinfo.h>
#endif
#include <sys/resource.h>
#if defined(__FreeBSD__) && defined(__GNUC__)
# include <floatingpoint.h>
#endif
#if defined(__bsdi__)
# include <sys/param.h>
# if _BSDI_VERSION > 199501
# include <dlfcn.h>
# endif
#endif
#ifdef __CYGWIN__
#ifdef __cplusplus
extern "C" {
#endif
DLLIMPORT extern unsigned char GetVersionExW(void *);
DLLIMPORT extern void *GetModuleHandleW(const void *);
DLLIMPORT extern void FreeLibrary(void *);
DLLIMPORT extern void *GetProcAddress(void *, const char *);
DLLIMPORT extern void GetSystemInfo(void *);
#ifdef __cplusplus
}
#endif
#define NUMPROCESSORS 15
static const char *const processors[NUMPROCESSORS] = {
"i686", "mips", "alpha", "ppc", "shx", "arm", "ia64", "alpha64", "msil",
"x86_64", "ia32_on_win64", "neutral", "arm64", "arm32_on_win64", "ia32_on_arm64"
};
typedef struct {
union {
unsigned int dwOemId;
struct {
int wProcessorArchitecture;
int wReserved;
};
};
unsigned int dwPageSize;
void *lpMinimumApplicationAddress;
void *lpMaximumApplicationAddress;
void *dwActiveProcessorMask;
unsigned int dwNumberOfProcessors;
unsigned int dwProcessorType;
unsigned int dwAllocationGranularity;
int wProcessorLevel;
int wProcessorRevision;
} SYSTEM_INFO;
typedef struct {
unsigned int dwOSVersionInfoSize;
unsigned int dwMajorVersion;
unsigned int dwMinorVersion;
unsigned int dwBuildNumber;
unsigned int dwPlatformId;
WCHAR szCSDVersion[128];
} OSVERSIONINFOW;
#endif
#ifdef HAVE_COREFOUNDATION
#include <CoreFoundation/CoreFoundation.h>
#endif
/*
* Tcl tries to use standard and homebrew methods to guess the right encoding
* on the platform. However, there is always a final fallback, and this value
* is it. Make sure it is a real Tcl encoding.
*/
#ifndef TCL_DEFAULT_ENCODING
#define TCL_DEFAULT_ENCODING "utf-8"
#endif
/*
* Default directory in which to look for Tcl library scripts. The symbol is
* defined by Makefile.
*/
static const char defaultLibraryDir[] = TCL_LIBRARY;
/*
* Directory in which to look for packages (each package is typically
* installed as a subdirectory of this directory). The symbol is defined by
* Makefile.
*/
static const char pkgPath[] = TCL_PACKAGE_PATH;
/*
* The following table is used to map from Unix locale strings to encoding
* files. If HAVE_LANGINFO is defined, then this is a fallback table when the
* result from nl_langinfo isn't a recognized encoding. Otherwise this is the
* first list checked for a mapping from env encoding to Tcl encoding name.
*/
typedef struct {
const char *lang;
const char *encoding;
} LocaleTable;
/*
* The table below is sorted for the sake of doing binary searches on it. The
* indenting reflects different categories of data. The leftmost data
* represent the encoding names directly implemented by data files in Tcl's
* default encoding directory. Indented by one TAB are the encoding names that
* are common alternative spellings. Indented by two TABs are the accumulated
* "bug fixes" that have been added to deal with the wide variability seen
* among existing platforms.
*/
static const LocaleTable localeTable[] = {
{"", "iso8859-1"},
{"ansi-1251", "cp1251"},
{"ansi_x3.4-1968", "iso8859-1"},
{"ascii", "ascii"},
{"big5", "big5"},
{"cp1250", "cp1250"},
{"cp1251", "cp1251"},
{"cp1252", "cp1252"},
{"cp1253", "cp1253"},
{"cp1254", "cp1254"},
{"cp1255", "cp1255"},
{"cp1256", "cp1256"},
{"cp1257", "cp1257"},
{"cp1258", "cp1258"},
{"cp437", "cp437"},
{"cp737", "cp737"},
{"cp775", "cp775"},
{"cp850", "cp850"},
{"cp852", "cp852"},
{"cp855", "cp855"},
{"cp857", "cp857"},
{"cp860", "cp860"},
{"cp861", "cp861"},
{"cp862", "cp862"},
{"cp863", "cp863"},
{"cp864", "cp864"},
{"cp865", "cp865"},
{"cp866", "cp866"},
{"cp869", "cp869"},
{"cp874", "cp874"},
{"cp932", "cp932"},
{"cp936", "cp936"},
{"cp949", "cp949"},
{"cp950", "cp950"},
{"dingbats", "dingbats"},
{"ebcdic", "ebcdic"},
{"euc-cn", "euc-cn"},
{"euc-jp", "euc-jp"},
{"euc-kr", "euc-kr"},
{"eucjp", "euc-jp"},
{"euckr", "euc-kr"},
{"euctw", "euc-cn"},
{"gb12345", "gb12345"},
{"gb1988", "gb1988"},
{"gb2312", "gb2312"},
{"gb2312-1980", "gb2312"},
{"gb2312-raw", "gb2312-raw"},
{"greek8", "cp869"},
{"ibm1250", "cp1250"},
{"ibm1251", "cp1251"},
{"ibm1252", "cp1252"},
{"ibm1253", "cp1253"},
{"ibm1254", "cp1254"},
{"ibm1255", "cp1255"},
{"ibm1256", "cp1256"},
{"ibm1257", "cp1257"},
{"ibm1258", "cp1258"},
{"ibm437", "cp437"},
{"ibm737", "cp737"},
{"ibm775", "cp775"},
{"ibm850", "cp850"},
{"ibm852", "cp852"},
{"ibm855", "cp855"},
{"ibm857", "cp857"},
{"ibm860", "cp860"},
{"ibm861", "cp861"},
{"ibm862", "cp862"},
{"ibm863", "cp863"},
{"ibm864", "cp864"},
{"ibm865", "cp865"},
{"ibm866", "cp866"},
{"ibm869", "cp869"},
{"ibm874", "cp874"},
{"ibm932", "cp932"},
{"ibm936", "cp936"},
{"ibm949", "cp949"},
{"ibm950", "cp950"},
{"iso-2022", "iso2022"},
{"iso-2022-jp", "iso2022-jp"},
{"iso-2022-kr", "iso2022-kr"},
{"iso-8859-1", "iso8859-1"},
{"iso-8859-10", "iso8859-10"},
{"iso-8859-13", "iso8859-13"},
{"iso-8859-14", "iso8859-14"},
{"iso-8859-15", "iso8859-15"},
{"iso-8859-16", "iso8859-16"},
{"iso-8859-2", "iso8859-2"},
{"iso-8859-3", "iso8859-3"},
{"iso-8859-4", "iso8859-4"},
{"iso-8859-5", "iso8859-5"},
{"iso-8859-6", "iso8859-6"},
{"iso-8859-7", "iso8859-7"},
{"iso-8859-8", "iso8859-8"},
{"iso-8859-9", "iso8859-9"},
{"iso2022", "iso2022"},
{"iso2022-jp", "iso2022-jp"},
{"iso2022-kr", "iso2022-kr"},
{"iso8859-1", "iso8859-1"},
{"iso8859-10", "iso8859-10"},
{"iso8859-13", "iso8859-13"},
{"iso8859-14", "iso8859-14"},
{"iso8859-15", "iso8859-15"},
{"iso8859-16", "iso8859-16"},
{"iso8859-2", "iso8859-2"},
{"iso8859-3", "iso8859-3"},
{"iso8859-4", "iso8859-4"},
{"iso8859-5", "iso8859-5"},
{"iso8859-6", "iso8859-6"},
{"iso8859-7", "iso8859-7"},
{"iso8859-8", "iso8859-8"},
{"iso8859-9", "iso8859-9"},
{"iso88591", "iso8859-1"},
{"iso885915", "iso8859-15"},
{"iso88592", "iso8859-2"},
{"iso88595", "iso8859-5"},
{"iso88596", "iso8859-6"},
{"iso88597", "iso8859-7"},
{"iso88598", "iso8859-8"},
{"iso88599", "iso8859-9"},
#ifdef hpux
{"ja", "shiftjis"},
#else
{"ja", "euc-jp"},
#endif
{"ja_jp", "euc-jp"},
{"ja_jp.euc", "euc-jp"},
{"ja_jp.eucjp", "euc-jp"},
{"ja_jp.jis", "iso2022-jp"},
{"ja_jp.mscode", "shiftjis"},
{"ja_jp.sjis", "shiftjis"},
{"ja_jp.ujis", "euc-jp"},
{"japan", "euc-jp"},
#ifdef hpux
{"japanese", "shiftjis"},
#else
{"japanese", "euc-jp"},
#endif
{"japanese-sjis", "shiftjis"},
{"japanese-ujis", "euc-jp"},
{"japanese.euc", "euc-jp"},
{"japanese.sjis", "shiftjis"},
{"jis0201", "jis0201"},
{"jis0208", "jis0208"},
{"jis0212", "jis0212"},
{"jp_jp", "shiftjis"},
{"ko", "euc-kr"},
{"ko_kr", "euc-kr"},
{"ko_kr.euc", "euc-kr"},
{"ko_kw.euckw", "euc-kr"},
{"koi8-r", "koi8-r"},
{"koi8-u", "koi8-u"},
{"korean", "euc-kr"},
{"ksc5601", "ksc5601"},
{"maccenteuro", "macCentEuro"},
{"maccroatian", "macCroatian"},
{"maccyrillic", "macCyrillic"},
{"macdingbats", "macDingbats"},
{"macgreek", "macGreek"},
{"maciceland", "macIceland"},
{"macjapan", "macJapan"},
{"macroman", "macRoman"},
{"macromania", "macRomania"},
{"macthai", "macThai"},
{"macturkish", "macTurkish"},
{"macukraine", "macUkraine"},
{"roman8", "iso8859-1"},
{"ru", "iso8859-5"},
{"ru_ru", "iso8859-5"},
{"ru_su", "iso8859-5"},
{"shiftjis", "shiftjis"},
{"sjis", "shiftjis"},
{"symbol", "symbol"},
{"tis-620", "tis-620"},
{"tis620", "tis-620"},
{"turkish8", "cp857"},
{"utf8", "utf-8"},
{"zh", "cp936"},
{"zh_cn.gb2312", "euc-cn"},
{"zh_cn.gbk", "euc-cn"},
{"zh_cz.gb2312", "euc-cn"},
{"zh_tw", "euc-tw"},
{"zh_tw.big5", "big5"},
};
#ifdef HAVE_COREFOUNDATION
static int MacOSXGetLibraryPath(Tcl_Interp *interp,
int maxPathLen, char *tclLibPath);
#endif /* HAVE_COREFOUNDATION */
/*
*---------------------------------------------------------------------------
*
* TclpInitPlatform --
*
* Initialize all the platform-dependent things like signals and
* floating-point error handling.
*
* Called at process initialization time.
*
* Results:
* None.
*
* Side effects:
* None.
*
*---------------------------------------------------------------------------
*/
void
TclpInitPlatform(void)
{
#ifdef DJGPP
tclPlatform = TCL_PLATFORM_WINDOWS;
#else
tclPlatform = TCL_PLATFORM_UNIX;
#endif
/*
* Make sure, that the standard FDs exist. [Bug 772288]
*/
if (TclOSseek(0, 0, SEEK_CUR) == -1 && errno == EBADF) {
open("/dev/null", O_RDONLY);
}
if (TclOSseek(1, 0, SEEK_CUR) == -1 && errno == EBADF) {
open("/dev/null", O_WRONLY);
}
if (TclOSseek(2, 0, SEEK_CUR) == -1 && errno == EBADF) {
open("/dev/null", O_WRONLY);
}
/*
* The code below causes SIGPIPE (broken pipe) errors to be ignored. This
* is needed so that Tcl processes don't die if they create child
* processes (e.g. using "exec" or "open") that terminate prematurely.
* The signal handler is only set up when the first interpreter is
* created; after this the application can override the handler with a
* different one of its own, if it wants.
*/
#ifdef SIGPIPE
(void) signal(SIGPIPE, SIG_IGN);
#endif /* SIGPIPE */
#if defined(__FreeBSD__) && defined(__GNUC__)
(void) fpsetmask(0L);
#endif
#if defined(__bsdi__) && (_BSDI_VERSION > 199501)
/*
* Find local symbols. Don't report an error if we fail.
*/
(void) dlopen(NULL, RTLD_NOW); /* INTL: Native. */
#endif
/*
* Initialize the C library's locale subsystem. This is required for input
* methods to work properly on X11. We only do this for LC_CTYPE because
* that's the necessary one, and we don't want to affect LC_TIME here.
* The side effect of setting the default locale should be to load any
* locale specific modules that are needed by X. [BUG: 5422 3345 4236 2522
* 2521].
*/
setlocale(LC_CTYPE, "");
/*
* In case the initial locale is not "C", ensure that the numeric
* processing is done in "C" locale regardless. This is needed because Tcl
* relies on routines like strtol/strtoul, but should not have locale dependent
* behavior.
*/
setlocale(LC_NUMERIC, "C");
}
/*
*---------------------------------------------------------------------------
*
* TclpInitLibraryPath --
*
* This is the fallback routine that sets the library path if the
* application has not set one by the first time it is needed.
*
* Results:
* None.
*
* Side effects:
* Sets the library path to an initial value.
*
*-------------------------------------------------------------------------
*/
void
TclpInitLibraryPath(
char **valuePtr,
size_t *lengthPtr,
Tcl_Encoding *encodingPtr)
{
#define LIBRARY_SIZE 32
Tcl_Obj *pathPtr, *objPtr;
const char *str;
Tcl_DString buffer;
TclNewObj(pathPtr);
/*
* Look for the library relative to the TCL_LIBRARY env variable. If the
* last dirname in the TCL_LIBRARY path does not match the last dirname in
* the installLib variable, use the last dir name of installLib in
* addition to the original TCL_LIBRARY path.
*/
str = getenv("TCL_LIBRARY"); /* INTL: Native. */
if (str != NULL) {
Tcl_ExternalToUtfDStringEx(NULL, NULL, str, TCL_INDEX_NONE,
TCL_ENCODING_PROFILE_TCL8, &buffer, NULL);
str = Tcl_DStringValue(&buffer);
} else {
Tcl_DStringInit(&buffer);
}
if ((str != NULL) && (str[0] != '\0')) {
Tcl_DString ds;
Tcl_Size pathc;
const char **pathv;
char installLib[LIBRARY_SIZE];
Tcl_DStringInit(&ds);
/*
* Initialize the substrings used when locating an executable. The
* installLib variable computes the path as though the executable is
* installed.
*/
snprintf(installLib, sizeof(installLib), "lib/tcl%s", TCL_VERSION);
/*
* If TCL_LIBRARY is set, search there.
*/
Tcl_ListObjAppendElement(NULL, pathPtr, Tcl_NewStringObj(str, TCL_INDEX_NONE));
Tcl_SplitPath(str, &pathc, &pathv);
if ((pathc > 0) && (strcasecmp(installLib + 4, pathv[pathc-1]) != 0)) {
/*
* If TCL_LIBRARY is set but refers to a different tcl
* installation than the current version, try fiddling with the
* specified directory to make it refer to this installation by
* removing the old "tclX.Y" and substituting the current version
* string.
*/
pathv[pathc - 1] = installLib + 4;
str = Tcl_JoinPath(pathc, pathv, &ds);
Tcl_ListObjAppendElement(NULL, pathPtr, Tcl_DStringToObj(&ds));
}
Tcl_Free(pathv);
}
/*
* Finally, look for the library relative to the compiled-in path. This is
* needed when users install Tcl with an exec-prefix that is different
* from the prefix.
*/
{
#ifdef HAVE_COREFOUNDATION
char tclLibPath[MAXPATHLEN + 1];
if (MacOSXGetLibraryPath(NULL, MAXPATHLEN, tclLibPath) == TCL_OK) {
str = tclLibPath;
} else
#endif /* HAVE_COREFOUNDATION */
{
/*
* TODO: Pull this value from the TIP 59 table.
*/
str = defaultLibraryDir;
}
if (str[0] != '\0') {
objPtr = Tcl_NewStringObj(str, TCL_INDEX_NONE);
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
}
}
Tcl_DStringFree(&buffer);
*encodingPtr = Tcl_GetEncoding(NULL, NULL);
/*
* Note lengthPtr is (size_t *) which is unsigned so cannot
* pass directly to Tcl_GetStringFromObj.
* TODO - why is the type size_t anyways?
*/
Tcl_Size length;
str = TclGetStringFromObj(pathPtr, &length);
*lengthPtr = length;
*valuePtr = (char *)Tcl_Alloc(length + 1);
memcpy(*valuePtr, str, length + 1);
Tcl_DecrRefCount(pathPtr);
}
/*
*---------------------------------------------------------------------------
*
* TclpSetInitialEncodings --
*
* Based on the locale, determine the encoding of the operating system
* and the default encoding for newly opened files.
*
* Called at process initialization time, and part way through startup,
* we verify that the initial encodings were correctly setup. Depending
* on Tcl's environment, there may not have been enough information first
* time through (above).
*
* Results:
* None.
*
* Side effects:
* The Tcl library path is converted from native encoding to UTF-8, on
* the first call, and the encodings may be changed on first or second
* call.
*
*---------------------------------------------------------------------------
*/
void
TclpSetInitialEncodings(void)
{
Tcl_DString encodingName;
Tcl_SetSystemEncoding(NULL,
Tcl_GetEncodingNameFromEnvironment(&encodingName));
Tcl_DStringFree(&encodingName);
}
static const char *
SearchKnownEncodings(
const char *encoding)
{
int left = 0;
int right = sizeof(localeTable)/sizeof(LocaleTable);
/* Here, search for i in the interval left <= i < right. */
while (left < right) {
int test = (left + right)/2;
int code = strcmp(localeTable[test].lang, encoding);
if (code == 0) {
/* Found it at i == test. */
return localeTable[test].encoding;
}
if (code < 0) {
/* Restrict the search to the interval test < i < right. */
left = test+1;
} else {
/* Restrict the search to the interval left <= i < test. */
right = test;
}
}
return NULL;
}
const char *
Tcl_GetEncodingNameFromEnvironment(
Tcl_DString *bufPtr)
{
const char *encoding;
const char *knownEncoding;
Tcl_DStringInit(bufPtr);
/*
* Determine the current encoding from the LC_* or LANG environment
* variables. We previously used setlocale() to determine the locale, but
* this does not work on some systems (e.g. Linux/i386 RH 5.0).
*/
#ifdef HAVE_LANGINFO
if (
#ifdef WEAK_IMPORT_NL_LANGINFO
nl_langinfo != NULL &&
#endif
setlocale(LC_CTYPE, "") != NULL) {
Tcl_DString ds;
/*
* Use a DString so we can modify case.
*/
Tcl_DStringInit(&ds);
encoding = Tcl_DStringAppend(&ds, nl_langinfo(CODESET), TCL_INDEX_NONE);
Tcl_UtfToLower(Tcl_DStringValue(&ds));
knownEncoding = SearchKnownEncodings(encoding);
if (knownEncoding != NULL) {
Tcl_DStringAppend(bufPtr, knownEncoding, TCL_INDEX_NONE);
} else if (NULL != Tcl_GetEncoding(NULL, encoding)) {
Tcl_DStringAppend(bufPtr, encoding, TCL_INDEX_NONE);
}
Tcl_DStringFree(&ds);
if (Tcl_DStringLength(bufPtr)) {
return Tcl_DStringValue(bufPtr);
}
}
#endif /* HAVE_LANGINFO */
/*
* Classic fallback check. This tries a homebrew algorithm to determine
* what encoding should be used based on env vars.
*/
encoding = getenv("LC_ALL");
if (encoding == NULL || encoding[0] == '\0') {
encoding = getenv("LC_CTYPE");
}
if (encoding == NULL || encoding[0] == '\0') {
encoding = getenv("LANG");
}
if (encoding == NULL || encoding[0] == '\0') {
encoding = NULL;
}
if (encoding != NULL) {
const char *p;
Tcl_DString ds;
Tcl_DStringInit(&ds);
p = encoding;
encoding = Tcl_DStringAppend(&ds, p, TCL_INDEX_NONE);
Tcl_UtfToLower(Tcl_DStringValue(&ds));
knownEncoding = SearchKnownEncodings(encoding);
if (knownEncoding != NULL) {
Tcl_DStringAppend(bufPtr, knownEncoding, TCL_INDEX_NONE);
} else if (NULL != Tcl_GetEncoding(NULL, encoding)) {
Tcl_DStringAppend(bufPtr, encoding, TCL_INDEX_NONE);
}
if (Tcl_DStringLength(bufPtr)) {
Tcl_DStringFree(&ds);
return Tcl_DStringValue(bufPtr);
}
/*
* We didn't recognize the full value as an encoding name. If there is
* an encoding subfield, we can try to guess from that.
*/
for (p = encoding; *p != '\0'; p++) {
if (*p == '.') {
p++;
break;
}
}
if (*p != '\0') {
knownEncoding = SearchKnownEncodings(p);
if (knownEncoding != NULL) {
Tcl_DStringAppend(bufPtr, knownEncoding, TCL_INDEX_NONE);
} else if (NULL != Tcl_GetEncoding(NULL, p)) {
Tcl_DStringAppend(bufPtr, p, TCL_INDEX_NONE);
}
}
Tcl_DStringFree(&ds);
if (Tcl_DStringLength(bufPtr)) {
return Tcl_DStringValue(bufPtr);
}
}
return Tcl_DStringAppend(bufPtr, TCL_DEFAULT_ENCODING, TCL_INDEX_NONE);
}
/*
*---------------------------------------------------------------------------
*
* TclpSetVariables --
*
* Performs platform-specific interpreter initialization related to the
* tcl_library and tcl_platform variables, and other platform-specific
* things.
*
* Results:
* None.
*
* Side effects:
* Sets "tclDefaultLibrary", "tcl_pkgPath", and "tcl_platform" Tcl
* variables.
*
*----------------------------------------------------------------------
*/
#if defined(HAVE_COREFOUNDATION)
/*
* Helper because whether CFLocaleCopyCurrent and CFLocaleGetIdentifier are
* strongly or weakly bound varies by version of OSX, triggering warnings.
*/
static inline void
InitMacLocaleInfoVar(
CFLocaleRef (*localeCopyCurrent)(void),
CFStringRef (*localeGetIdentifier)(CFLocaleRef),
Tcl_Interp *interp)
{
CFLocaleRef localeRef;
CFStringRef locale;
char loc[256];
if (localeCopyCurrent == NULL || localeGetIdentifier == NULL) {
return;
}
localeRef = localeCopyCurrent();
if (!localeRef) {
return;
}
locale = localeGetIdentifier(localeRef);
if (locale && CFStringGetCString(locale, loc, 256,
kCFStringEncodingUTF8)) {
if (!Tcl_CreateNamespace(interp, "::tcl::mac", NULL, NULL)) {
Tcl_ResetResult(interp);
}
Tcl_SetVar2(interp, "::tcl::mac::locale", NULL, loc, TCL_GLOBAL_ONLY);
}
CFRelease(localeRef);
}
#endif /*defined(HAVE_COREFOUNDATION)*/
void
TclpSetVariables(
Tcl_Interp *interp)
{
#ifdef __CYGWIN__
SYSTEM_INFO sysInfo;
static OSVERSIONINFOW osInfo;
static int osInfoInitialized = 0;
char buffer[TCL_INTEGER_SPACE * 2];
#elif !defined(NO_UNAME)
struct utsname name;
#endif
int unameOK;
const char *p, *q;
Tcl_Obj *pkgListObj = Tcl_NewObj();
#ifdef HAVE_COREFOUNDATION
char tclLibPath[MAXPATHLEN + 1];
/*
* Set msgcat fallback locale to current CFLocale identifier.
*/
InitMacLocaleInfoVar(CFLocaleCopyCurrent, CFLocaleGetIdentifier, interp);
if (MacOSXGetLibraryPath(interp, MAXPATHLEN, tclLibPath) == TCL_OK) {
const char *str;
CFBundleRef bundleRef;
Tcl_DString ds;
Tcl_SetVar2(interp, "tclDefaultLibrary", NULL, tclLibPath, TCL_GLOBAL_ONLY);
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
str = TclGetEnv("DYLD_FRAMEWORK_PATH", &ds);
if ((str != NULL) && (str[0] != '\0')) {
p = Tcl_DStringValue(&ds);
while ((q = strchr(p, ':')) != NULL) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, q-p));
p = q+1;
}
if (*p) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, -1));
}
Tcl_DStringFree(&ds);
}
bundleRef = CFBundleGetMainBundle();
if (bundleRef) {
CFURLRef frameworksURL;
Tcl_StatBuf statBuf;
frameworksURL = CFBundleCopyPrivateFrameworksURL(bundleRef);
if (frameworksURL) {
if (CFURLGetFileSystemRepresentation(frameworksURL, TRUE,
(unsigned char*) tclLibPath, MAXPATHLEN) &&
! TclOSstat(tclLibPath, &statBuf) &&
S_ISDIR(statBuf.st_mode)) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
}
CFRelease(frameworksURL);
}
frameworksURL = CFBundleCopySharedFrameworksURL(bundleRef);
if (frameworksURL) {
if (CFURLGetFileSystemRepresentation(frameworksURL, TRUE,
(unsigned char*) tclLibPath, MAXPATHLEN) &&
! TclOSstat(tclLibPath, &statBuf) &&
S_ISDIR(statBuf.st_mode)) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(tclLibPath, -1));
}
CFRelease(frameworksURL);
}
}
}
#endif /* HAVE_COREFOUNDATION */
p = pkgPath;
while ((q = strchr(p, ':')) != NULL) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, q-p));
p = q+1;
}
if (*p) {
Tcl_ListObjAppendElement(NULL, pkgListObj, Tcl_NewStringObj(p, -1));
}
Tcl_ObjSetVar2(interp, Tcl_NewStringObj("tcl_pkgPath", -1), NULL, pkgListObj, TCL_GLOBAL_ONLY);
{
/* Some platforms build configure scripts expect ~ expansion so do that */
Tcl_Obj *origPaths;
Tcl_Obj *resolvedPaths;
origPaths = Tcl_GetVar2Ex(interp, "tcl_pkgPath", NULL, TCL_GLOBAL_ONLY);
resolvedPaths = TclResolveTildePathList(origPaths);
if (resolvedPaths != origPaths && resolvedPaths != NULL) {
Tcl_SetVar2Ex(interp, "tcl_pkgPath", NULL, resolvedPaths, TCL_GLOBAL_ONLY);
}
}
#ifdef DJGPP
Tcl_SetVar2(interp, "tcl_platform", "platform", "dos", TCL_GLOBAL_ONLY);
#else
Tcl_SetVar2(interp, "tcl_platform", "platform", "unix", TCL_GLOBAL_ONLY);
#endif
unameOK = 0;
#ifdef __CYGWIN__
unameOK = 1;
if (!osInfoInitialized) {
void *handle = GetModuleHandleW(L"NTDLL");
int(*getversion)(void *) =
(int(*)(void *))GetProcAddress(handle, "RtlGetVersion");
osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
if (!getversion || getversion(&osInfo)) {
GetVersionExW(&osInfo);
}
osInfoInitialized = 1;
}
GetSystemInfo(&sysInfo);
if (osInfo.dwMajorVersion == 10 && osInfo.dwBuildNumber >= 22000) {
osInfo.dwMajorVersion = 11;
}
Tcl_SetVar2(interp, "tcl_platform", "os", "Windows NT", TCL_GLOBAL_ONLY);
snprintf(buffer, sizeof(buffer), "%d.%d", osInfo.dwMajorVersion, osInfo.dwMinorVersion);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", buffer, TCL_GLOBAL_ONLY);
if (sysInfo.wProcessorArchitecture < NUMPROCESSORS) {
Tcl_SetVar2(interp, "tcl_platform", "machine",
processors[sysInfo.wProcessorArchitecture],
TCL_GLOBAL_ONLY);
}
#elif !defined NO_UNAME
if (uname(&name) >= 0) {
const char *native;
Tcl_DString ds;
unameOK = 1;
native = Tcl_ExternalToUtfDString(NULL, name.sysname, TCL_INDEX_NONE, &ds);
Tcl_SetVar2(interp, "tcl_platform", "os", native, TCL_GLOBAL_ONLY);
Tcl_DStringFree(&ds);
/*
* The following code is a special hack to handle differences in the
* way version information is returned by uname. On most systems the
* full version number is available in name.release. However, under
* AIX the major version number is in name.version and the minor
* version number is in name.release.
*/
if ((strchr(name.release, '.') != NULL)
|| !isdigit(UCHAR(name.version[0]))) { /* INTL: digit */
Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.release,
TCL_GLOBAL_ONLY);
} else {
#ifdef DJGPP
/*
* For some obscure reason DJGPP puts major version into
* name.release and minor into name.version. As of DJGPP 2.04 this
* is documented in djgpp libc.info file.
*/
Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.release,
TCL_GLOBAL_ONLY);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", ".",
TCL_GLOBAL_ONLY|TCL_APPEND_VALUE);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.version,
TCL_GLOBAL_ONLY|TCL_APPEND_VALUE);
#else
Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.version,
TCL_GLOBAL_ONLY);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", ".",
TCL_GLOBAL_ONLY|TCL_APPEND_VALUE);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.release,
TCL_GLOBAL_ONLY|TCL_APPEND_VALUE);
#endif /* DJGPP */
}
Tcl_SetVar2(interp, "tcl_platform", "machine", name.machine,
TCL_GLOBAL_ONLY);
}
#endif /* !NO_UNAME */
if (!unameOK) {
Tcl_SetVar2(interp, "tcl_platform", "os", "", TCL_GLOBAL_ONLY);
Tcl_SetVar2(interp, "tcl_platform", "osVersion", "", TCL_GLOBAL_ONLY);
Tcl_SetVar2(interp, "tcl_platform", "machine", "", TCL_GLOBAL_ONLY);
}
/*
* Copy the username of the real user (according to getuid()) into
* tcl_platform(user).
*/
{
struct passwd *pwEnt = TclpGetPwUid(getuid());
const char *user;
Tcl_DString ds;
if (pwEnt == NULL) {
user = "";
Tcl_DStringInit(&ds); /* ensure cleanliness */
} else {
user = Tcl_ExternalToUtfDString(NULL, pwEnt->pw_name, TCL_INDEX_NONE, &ds);
}
Tcl_SetVar2(interp, "tcl_platform", "user", user, TCL_GLOBAL_ONLY);
Tcl_DStringFree(&ds);
}
/*
* Define what the platform PATH separator is. [TIP #315]
*/
Tcl_SetVar2(interp, "tcl_platform","pathSeparator", ":", TCL_GLOBAL_ONLY);
}
/*
*----------------------------------------------------------------------
*
* TclpFindVariable --
*
* Locate the entry in environ for a given name. On Unix this routine is
* case sensitive, on Windows this matches mixed case.
*
* Results:
* The return value is the index in environ of an entry with the name
* "name", or -1 if there is no such entry. The integer at *lengthPtr is
* filled in with the length of name (if a matching entry is found) or
* the length of the environ array (if no matching entry is found).
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Tcl_Size
TclpFindVariable(
const char *name, /* Name of desired environment variable
* (native). */
Tcl_Size *lengthPtr) /* Used to return length of name (for
* successful searches) or number of non-NULL
* entries in environ (for unsuccessful
* searches). */
{
Tcl_Size i, result = -1;
const char *env, *p1, *p2;
Tcl_DString envString;
Tcl_DStringInit(&envString);
for (i = 0, env = environ[i]; env != NULL; i++, env = environ[i]) {