summaryrefslogtreecommitdiffstats
path: root/win/tclWinFCmd.c
blob: c565d33f08f96f50bda59f517fd0dc444c32baa0 (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
/*
 * tclWinFCmd.c
 *
 *      This file implements the Windows specific portion of file manipulation 
 *      subcommands of the "file" command. 
 *
 * Copyright (c) 1996-1998 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclWinFCmd.c,v 1.38 2003/12/17 17:47:28 vincentdarley Exp $
 */

#include "tclWinInt.h"

/*
 * The following constants specify the type of callback when
 * TraverseWinTree() calls the traverseProc()
 */

#define DOTREE_PRED   1     /* pre-order directory  */
#define DOTREE_POSTD  2     /* post-order directory */
#define DOTREE_F      3     /* regular file */
#define DOTREE_LINK   4     /* symbolic link */

/*
 * Callbacks for file attributes code.
 */

static int		GetWinFileAttributes _ANSI_ARGS_((Tcl_Interp *interp,
			    int objIndex, Tcl_Obj *fileName,
			    Tcl_Obj **attributePtrPtr));
static int		GetWinFileLongName _ANSI_ARGS_((Tcl_Interp *interp,
			    int objIndex, Tcl_Obj *fileName,
			    Tcl_Obj **attributePtrPtr));
static int		GetWinFileShortName _ANSI_ARGS_((Tcl_Interp *interp,
			    int objIndex, Tcl_Obj *fileName,
			    Tcl_Obj **attributePtrPtr));
static int		SetWinFileAttributes _ANSI_ARGS_((Tcl_Interp *interp,
			    int objIndex, Tcl_Obj *fileName,
			    Tcl_Obj *attributePtr));
static int		CannotSetAttribute _ANSI_ARGS_((Tcl_Interp *interp,
			    int objIndex, Tcl_Obj *fileName,
			    Tcl_Obj *attributePtr));

/*
 * Constants and variables necessary for file attributes subcommand.
 */

enum {
    WIN_ARCHIVE_ATTRIBUTE,
    WIN_HIDDEN_ATTRIBUTE,
    WIN_LONGNAME_ATTRIBUTE,
    WIN_READONLY_ATTRIBUTE,
    WIN_SHORTNAME_ATTRIBUTE,
    WIN_SYSTEM_ATTRIBUTE
};

static int attributeArray[] = {FILE_ATTRIBUTE_ARCHIVE, FILE_ATTRIBUTE_HIDDEN,
	0, FILE_ATTRIBUTE_READONLY, 0, FILE_ATTRIBUTE_SYSTEM};


CONST char *tclpFileAttrStrings[] = {
	"-archive", "-hidden", "-longname", "-readonly",
	"-shortname", "-system", (char *) NULL
};

CONST TclFileAttrProcs tclpFileAttrProcs[] = {
	{GetWinFileAttributes, SetWinFileAttributes},
	{GetWinFileAttributes, SetWinFileAttributes},
	{GetWinFileLongName, CannotSetAttribute},
	{GetWinFileAttributes, SetWinFileAttributes},
	{GetWinFileShortName, CannotSetAttribute},
	{GetWinFileAttributes, SetWinFileAttributes}};

#if defined(HAVE_NO_SEH) && defined(TCL_MEM_DEBUG)
static void *INITIAL_ESP,
            *INITIAL_EBP,
            *INITIAL_HANDLER,
            *RESTORED_ESP,
            *RESTORED_EBP,
            *RESTORED_HANDLER;
#endif /* HAVE_NO_SEH && TCL_MEM_DEBUG */

/*
 * Prototype for the TraverseWinTree callback function.
 */

typedef int (TraversalProc)(CONST TCHAR *srcPtr, CONST TCHAR *dstPtr, 
	int type, Tcl_DString *errorPtr);

/*
 * Declarations for local procedures defined in this file:
 */

static void		StatError(Tcl_Interp *interp, Tcl_Obj *fileName);
static int		ConvertFileNameFormat(Tcl_Interp *interp, 
			    int objIndex, Tcl_Obj *fileName, int longShort,
			    Tcl_Obj **attributePtrPtr);
static int		DoCopyFile(CONST TCHAR *srcPtr, CONST TCHAR *dstPtr);
static int		DoCreateDirectory(CONST TCHAR *pathPtr);
static int		DoRemoveJustDirectory(CONST TCHAR *nativeSrc, 
			    int ignoreError, Tcl_DString *errorPtr);
static int		DoRemoveDirectory(Tcl_DString *pathPtr, int recursive, 
			    Tcl_DString *errorPtr);
static int		DoRenameFile(CONST TCHAR *nativeSrc, CONST TCHAR *dstPtr);
static int		TraversalCopy(CONST TCHAR *srcPtr, CONST TCHAR *dstPtr, 
			    int type, Tcl_DString *errorPtr);
static int		TraversalDelete(CONST TCHAR *srcPtr, CONST TCHAR *dstPtr, 
			    int type, Tcl_DString *errorPtr);
static int		TraverseWinTree(TraversalProc *traverseProc,
			    Tcl_DString *sourcePtr, Tcl_DString *dstPtr, 
			    Tcl_DString *errorPtr);


/*
 *---------------------------------------------------------------------------
 *
 * TclpObjRenameFile, DoRenameFile --
 *
 *      Changes the name of an existing file or directory, from src to dst.
 *	If src and dst refer to the same file or directory, does nothing
 *	and returns success.  Otherwise if dst already exists, it will be
 *	deleted and replaced by src subject to the following conditions:
 *	    If src is a directory, dst may be an empty directory.
 *	    If src is a file, dst may be a file.
 *	In any other situation where dst already exists, the rename will
 *	fail.  
 *
 * Results:
 *	If the file or directory was successfully renamed, returns TCL_OK.
 *	Otherwise the return value is TCL_ERROR and errno is set to
 *	indicate the error.  Some possible values for errno are:
 *
 *	ENAMETOOLONG: src or dst names are too long.
 *	EACCES:     src or dst parent directory can't be read and/or written.
 *	EEXIST:	    dst is a non-empty directory.
 *	EINVAL:	    src is a root directory or dst is a subdirectory of src.
 *	EISDIR:	    dst is a directory, but src is not.
 *	ENOENT:	    src doesn't exist.  src or dst is "".
 *	ENOTDIR:    src is a directory, but dst is not.  
 *	EXDEV:	    src and dst are on different filesystems.
 *
 *	EACCES:     exists an open file already referring to src or dst.
 *	EACCES:     src or dst specify the current working directory (NT).
 *	EACCES:	    src specifies a char device (nul:, com1:, etc.) 
 *	EEXIST:	    dst specifies a char device (nul:, com1:, etc.) (NT)
 *	EACCES:	    dst specifies a char device (nul:, com1:, etc.) (95)
 *	
 * Side effects:
 *	The implementation supports cross-filesystem renames of files,
 *	but the caller should be prepared to emulate cross-filesystem
 *	renames of directories if errno is EXDEV.
 *
 *---------------------------------------------------------------------------
 */

int 
TclpObjRenameFile(srcPathPtr, destPathPtr)
    Tcl_Obj *srcPathPtr;
    Tcl_Obj *destPathPtr;
{
    return DoRenameFile(Tcl_FSGetNativePath(srcPathPtr), 
			Tcl_FSGetNativePath(destPathPtr));
}

static int
DoRenameFile(
    CONST TCHAR *nativeSrc,	/* Pathname of file or dir to be renamed
				 * (native). */ 
    CONST TCHAR *nativeDst)	/* New pathname for file or directory
				 * (native). */
{    
    DWORD srcAttr, dstAttr;
    int retval = -1;

    /*
     * The MoveFile API acts differently under Win95/98 and NT
     * WRT NULL and "". Avoid passing these values.
     */

    if (nativeSrc == NULL || nativeSrc[0] == '\0' ||
        nativeDst == NULL || nativeDst[0] == '\0') {
	Tcl_SetErrno(ENOENT);
	return TCL_ERROR;
    }

    /*
     * The MoveFile API would throw an exception under NT
     * if one of the arguments is a char block device.
     */

#ifdef HAVE_NO_SEH
# ifdef TCL_MEM_DEBUG
    __asm__ __volatile__ (
            "movl %%esp,  %0" "\n\t"
            "movl %%ebp,  %1" "\n\t"
            "movl %%fs:0, %2" "\n\t"
            : "=m"(INITIAL_ESP),
              "=m"(INITIAL_EBP),
              "=r"(INITIAL_HANDLER) );
# endif /* TCL_MEM_DEBUG */

    __asm__ __volatile__ (
            "pushl %ebp" "\n\t"
            "pushl $__except_dorenamefile_handler" "\n\t"
            "pushl %fs:0" "\n\t"
            "movl  %esp, %fs:0");
#else
    __try {
#endif /* HAVE_NO_SEH */
	if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
	    retval = TCL_OK;
	}
#ifdef HAVE_NO_SEH
    __asm__ __volatile__ (
            "jmp  dorenamefile_pop" "\n"
        "dorenamefile_reentry:" "\n\t"
            "movl %%fs:0, %%eax" "\n\t"
            "movl 0x8(%%eax), %%esp" "\n\t"
            "movl 0x8(%%esp), %%ebp" "\n"
        "dorenamefile_pop:" "\n\t"
            "movl (%%esp), %%eax" "\n\t"
            "movl %%eax, %%fs:0" "\n\t"
            "add  $12, %%esp" "\n\t"
            :
            :
            : "%eax");

# ifdef TCL_MEM_DEBUG
    __asm__ __volatile__ (
            "movl  %%esp,  %0" "\n\t"
            "movl  %%ebp,  %1" "\n\t"
            "movl  %%fs:0, %2" "\n\t"
            : "=m"(RESTORED_ESP),
              "=m"(RESTORED_EBP),
              "=r"(RESTORED_HANDLER) );

    if (INITIAL_ESP != RESTORED_ESP)
        panic("ESP restored incorrectly");
    if (INITIAL_EBP != RESTORED_EBP)
        panic("EBP restored incorrectly");
    if (INITIAL_HANDLER != RESTORED_HANDLER)
        panic("HANDLER restored incorrectly");
# endif /* TCL_MEM_DEBUG */
#else
    } __except (EXCEPTION_EXECUTE_HANDLER) {}
#endif /* HAVE_NO_SEH */

    /*
     * Avoid using control flow statements in the SEH guarded block!
     */
    if (retval != -1)
        return retval;

    TclWinConvertError(GetLastError());

    srcAttr = (*tclWinProcs->getFileAttributesProc)(nativeSrc);
    dstAttr = (*tclWinProcs->getFileAttributesProc)(nativeDst);
    if (srcAttr == 0xffffffff) {
	if ((*tclWinProcs->getFullPathNameProc)(nativeSrc, 0, NULL, NULL) >= MAX_PATH) {
	    errno = ENAMETOOLONG;
	    return TCL_ERROR;
	}
	srcAttr = 0;
    }
    if (dstAttr == 0xffffffff) {
	if ((*tclWinProcs->getFullPathNameProc)(nativeDst, 0, NULL, NULL) >= MAX_PATH) {
	    errno = ENAMETOOLONG;
	    return TCL_ERROR;
	}
	dstAttr = 0;
    }

    if (errno == EBADF) {
	errno = EACCES;
	return TCL_ERROR;
    }
    if (errno == EACCES) {
	decode:
	if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
	    TCHAR *nativeSrcRest, *nativeDstRest;
	    CONST char **srcArgv, **dstArgv;
	    int size, srcArgc, dstArgc;
	    WCHAR nativeSrcPath[MAX_PATH];
	    WCHAR nativeDstPath[MAX_PATH];
	    Tcl_DString srcString, dstString;
	    CONST char *src, *dst;

	    size = (*tclWinProcs->getFullPathNameProc)(nativeSrc, MAX_PATH, 
		    nativeSrcPath, &nativeSrcRest);
	    if ((size == 0) || (size > MAX_PATH)) {
		return TCL_ERROR;
	    }
	    size = (*tclWinProcs->getFullPathNameProc)(nativeDst, MAX_PATH, 
		    nativeDstPath, &nativeDstRest);
	    if ((size == 0) || (size > MAX_PATH)) {
		return TCL_ERROR;
	    }
	    (*tclWinProcs->charLowerProc)((TCHAR *) nativeSrcPath);
	    (*tclWinProcs->charLowerProc)((TCHAR *) nativeDstPath);

	    src = Tcl_WinTCharToUtf((TCHAR *) nativeSrcPath, -1, &srcString);
	    dst = Tcl_WinTCharToUtf((TCHAR *) nativeDstPath, -1, &dstString);
	    /*
	     * Check whether the destination path is actually inside the
	     * source path.  This is true if the prefix matches, and the next
	     * character is either end-of-string or a directory separator
	     */
	    if ((strncmp(src, dst, (size_t) Tcl_DStringLength(&srcString)) == 0) 
		&& (dst[Tcl_DStringLength(&srcString)] == '\\'
		    || dst[Tcl_DStringLength(&srcString)] == '/'
		    || dst[Tcl_DStringLength(&srcString)] == '\0')) {
		/*
		 * Trying to move a directory into itself.
		 */

		errno = EINVAL;
		Tcl_DStringFree(&srcString);
		Tcl_DStringFree(&dstString);
		return TCL_ERROR;
	    }
	    Tcl_SplitPath(src, &srcArgc, &srcArgv);
	    Tcl_SplitPath(dst, &dstArgc, &dstArgv);
	    Tcl_DStringFree(&srcString);
	    Tcl_DStringFree(&dstString);

	    if (srcArgc == 1) {
		/*
		 * They are trying to move a root directory.  Whether
		 * or not it is across filesystems, this cannot be
		 * done.
		 */

		Tcl_SetErrno(EINVAL);
	    } else if ((srcArgc > 0) && (dstArgc > 0) &&
		    (strcmp(srcArgv[0], dstArgv[0]) != 0)) {
		/*
		 * If src is a directory and dst filesystem != src
		 * filesystem, errno should be EXDEV.  It is very
		 * important to get this behavior, so that the caller
		 * can respond to a cross filesystem rename by
		 * simulating it with copy and delete.  The MoveFile
		 * system call already handles the case of moving a
		 * file between filesystems.
		 */

		Tcl_SetErrno(EXDEV);
	    }

	    ckfree((char *) srcArgv);
	    ckfree((char *) dstArgv);
	}

	/*
	 * Other types of access failure is that dst is a read-only
	 * filesystem, that an open file referred to src or dest, or that
	 * src or dest specified the current working directory on the
	 * current filesystem.  EACCES is returned for those cases.
	 */

    } else if (Tcl_GetErrno() == EEXIST) {
	/*
	 * Reports EEXIST any time the target already exists.  If it makes
	 * sense, remove the old file and try renaming again.
	 */

	if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
	    if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
		/*
		 * Overwrite empty dst directory with src directory.  The
		 * following call will remove an empty directory.  If it
		 * fails, it's because it wasn't empty.
		 */

		if (DoRemoveJustDirectory(nativeDst, 0, NULL) == TCL_OK) {
		    /*
		     * Now that that empty directory is gone, we can try
		     * renaming again.  If that fails, we'll put this empty
		     * directory back, for completeness.
		     */

		    if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
			return TCL_OK;
		    }

		    /*
		     * Some new error has occurred.  Don't know what it
		     * could be, but report this one.
		     */

		    TclWinConvertError(GetLastError());
		    (*tclWinProcs->createDirectoryProc)(nativeDst, NULL);
		    (*tclWinProcs->setFileAttributesProc)(nativeDst, dstAttr);
		    if (Tcl_GetErrno() == EACCES) {
			/*
			 * Decode the EACCES to a more meaningful error.
			 */

			goto decode;
		    }
		}
	    } else {	/* (dstAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
		Tcl_SetErrno(ENOTDIR);
	    }
	} else {    /* (srcAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
	    if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
		Tcl_SetErrno(EISDIR);
	    } else {
		/*
		 * Overwrite existing file by:
		 * 
		 * 1. Rename existing file to temp name.
		 * 2. Rename old file to new name.
		 * 3. If success, delete temp file.  If failure,
		 *    put temp file back to old name.
		 */

		TCHAR *nativeRest, *nativeTmp, *nativePrefix;
		int result, size;
		WCHAR tempBuf[MAX_PATH];
		
		size = (*tclWinProcs->getFullPathNameProc)(nativeDst, MAX_PATH, 
			tempBuf, &nativeRest);
		if ((size == 0) || (size > MAX_PATH) || (nativeRest == NULL)) {
		    return TCL_ERROR;
		}
		nativeTmp = (TCHAR *) tempBuf;
		((char *) nativeRest)[0] = '\0';
		((char *) nativeRest)[1] = '\0';    /* In case it's Unicode. */

		result = TCL_ERROR;
		nativePrefix = (tclWinProcs->useWide) 
			? (TCHAR *) L"tclr" : (TCHAR *) "tclr";
		if ((*tclWinProcs->getTempFileNameProc)(nativeTmp, 
			nativePrefix, 0, tempBuf) != 0) {
		    /*
		     * Strictly speaking, need the following DeleteFile and
		     * MoveFile to be joined as an atomic operation so no
		     * other app comes along in the meantime and creates the
		     * same temp file.
		     */
		     
		    nativeTmp = (TCHAR *) tempBuf;
		    (*tclWinProcs->deleteFileProc)(nativeTmp);
		    if ((*tclWinProcs->moveFileProc)(nativeDst, nativeTmp) != FALSE) {
			if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
			    (*tclWinProcs->setFileAttributesProc)(nativeTmp, 
				    FILE_ATTRIBUTE_NORMAL);
			    (*tclWinProcs->deleteFileProc)(nativeTmp);
			    return TCL_OK;
			} else {
			    (*tclWinProcs->deleteFileProc)(nativeDst);
			    (*tclWinProcs->moveFileProc)(nativeTmp, nativeDst);
			}
		    } 

		    /*
		     * Can't backup dst file or move src file.  Return that
		     * error.  Could happen if an open file refers to dst.
		     */

		    TclWinConvertError(GetLastError());
		    if (Tcl_GetErrno() == EACCES) {
			/*
			 * Decode the EACCES to a more meaningful error.
			 */

			goto decode;
		    }
		}
		return result;
	    }
	}
    }
    return TCL_ERROR;
}
#ifdef HAVE_NO_SEH
static
__attribute__ ((cdecl))
EXCEPTION_DISPOSITION
_except_dorenamefile_handler(
    struct _EXCEPTION_RECORD *ExceptionRecord,
    void *EstablisherFrame,
    struct _CONTEXT *ContextRecord,
    void *DispatcherContext)
{
    __asm__ __volatile__ (
            "jmp dorenamefile_reentry");
    /* Nuke compiler warning about unused static function */
    _except_dorenamefile_handler(NULL, NULL, NULL, NULL);
    return 0; /* Function does not return */
}
#endif /* HAVE_NO_SEH */

/*
 *---------------------------------------------------------------------------
 *
 * TclpObjCopyFile, DoCopyFile --
 *
 *      Copy a single file (not a directory).  If dst already exists and
 *	is not a directory, it is removed.
 *
 * Results:
 *	If the file was successfully copied, returns TCL_OK.  Otherwise
 *	the return value is TCL_ERROR and errno is set to indicate the
 *	error.  Some possible values for errno are:
 *
 *	EACCES:     src or dst parent directory can't be read and/or written.
 *	EISDIR:	    src or dst is a directory.
 *	ENOENT:	    src doesn't exist.  src or dst is "".
 *
 *	EACCES:     exists an open file already referring to dst (95).
 *	EACCES:	    src specifies a char device (nul:, com1:, etc.) (NT)
 *	ENOENT:	    src specifies a char device (nul:, com1:, etc.) (95)
 *
 * Side effects:
 *	It is not an error to copy to a char device.
 *
 *---------------------------------------------------------------------------
 */

int 
TclpObjCopyFile(srcPathPtr, destPathPtr)
    Tcl_Obj *srcPathPtr;
    Tcl_Obj *destPathPtr;
{
    return DoCopyFile(Tcl_FSGetNativePath(srcPathPtr),
		      Tcl_FSGetNativePath(destPathPtr));
}

static int
DoCopyFile(
   CONST TCHAR *nativeSrc,	/* Pathname of file to be copied (native). */
   CONST TCHAR *nativeDst)	/* Pathname of file to copy to (native). */
{
    int retval = -1;

    /*
     * The CopyFile API acts differently under Win95/98 and NT
     * WRT NULL and "". Avoid passing these values.
     */

    if (nativeSrc == NULL || nativeSrc[0] == '\0' ||
        nativeDst == NULL || nativeDst[0] == '\0') {
	Tcl_SetErrno(ENOENT);
	return TCL_ERROR;
    }
    
    /*
     * The CopyFile API would throw an exception under NT if one
     * of the arguments is a char block device.
     */

#ifdef HAVE_NO_SEH
# ifdef TCL_MEM_DEBUG
    __asm__ __volatile__ (
            "movl %%esp,  %0" "\n\t"
            "movl %%ebp,  %1" "\n\t"
            "movl %%fs:0, %2" "\n\t"
            : "=m"(INITIAL_ESP),
              "=m"(INITIAL_EBP),
              "=r"(INITIAL_HANDLER) );
# endif /* TCL_MEM_DEBUG */

    __asm__ __volatile__ (
            "pushl %ebp" "\n\t"
            "pushl $__except_docopyfile_handler" "\n\t"
            "pushl %fs:0" "\n\t"
            "movl  %esp, %fs:0");
#else
    __try {
#endif /* HAVE_NO_SEH */
	if ((*tclWinProcs->copyFileProc)(nativeSrc, nativeDst, 0) != FALSE) {
	    retval = TCL_OK;
	}
#ifdef HAVE_NO_SEH
    __asm__ __volatile__ (
            "jmp  docopyfile_pop" "\n"
        "docopyfile_reentry:" "\n\t"
            "movl %%fs:0, %%eax" "\n\t"
            "movl 0x8(%%eax), %%esp" "\n\t"
            "movl 0x8(%%esp), %%ebp" "\n"
        "docopyfile_pop:" "\n\t"
            "movl (%%esp), %%eax" "\n\t"
            "movl %%eax, %%fs:0" "\n\t"
            "add  $12, %%esp" "\n\t"
            :
            :
            : "%eax");

# ifdef TCL_MEM_DEBUG
    __asm__ __volatile__ (
            "movl  %%esp,  %0" "\n\t"
            "movl  %%ebp,  %1" "\n\t"
            "movl  %%fs:0, %2" "\n\t"
            : "=m"(RESTORED_ESP),
              "=m"(RESTORED_EBP),
              "=r"(RESTORED_HANDLER) );

    if (INITIAL_ESP != RESTORED_ESP)
        panic("ESP restored incorrectly");
    if (INITIAL_EBP != RESTORED_EBP)
        panic("EBP restored incorrectly");
    if (INITIAL_HANDLER != RESTORED_HANDLER)
        panic("HANDLER restored incorrectly");
# endif /* TCL_MEM_DEBUG */
#else
    } __except (EXCEPTION_EXECUTE_HANDLER) {}
#endif /* HAVE_NO_SEH */

    /*
     * Avoid using control flow statements in the SEH guarded block!
     */
    if (retval != -1)
        return retval;

    TclWinConvertError(GetLastError());
    if (Tcl_GetErrno() == EBADF) {
	Tcl_SetErrno(EACCES);
	return TCL_ERROR;
    }
    if (Tcl_GetErrno() == EACCES) {
	DWORD srcAttr, dstAttr;

	srcAttr = (*tclWinProcs->getFileAttributesProc)(nativeSrc);
	dstAttr = (*tclWinProcs->getFileAttributesProc)(nativeDst);
	if (srcAttr != 0xffffffff) {
	    if (dstAttr == 0xffffffff) {
		dstAttr = 0;
	    }
	    if ((srcAttr & FILE_ATTRIBUTE_DIRECTORY) ||
		    (dstAttr & FILE_ATTRIBUTE_DIRECTORY)) {
		if (srcAttr & FILE_ATTRIBUTE_REPARSE_POINT) {
		    /* Source is a symbolic link -- copy it */
		    if (TclWinSymLinkCopyDirectory(nativeSrc, nativeDst) == 0) {
		        return TCL_OK;
		    }
		}
		Tcl_SetErrno(EISDIR);
	    }
	    if (dstAttr & FILE_ATTRIBUTE_READONLY) {
		(*tclWinProcs->setFileAttributesProc)(nativeDst, 
			dstAttr & ~((DWORD)FILE_ATTRIBUTE_READONLY));
		if ((*tclWinProcs->copyFileProc)(nativeSrc, nativeDst, 0) != FALSE) {
		    return TCL_OK;
		}
		/*
		 * Still can't copy onto dst.  Return that error, and
		 * restore attributes of dst.
		 */

		TclWinConvertError(GetLastError());
		(*tclWinProcs->setFileAttributesProc)(nativeDst, dstAttr);
	    }
	}
    }
    return TCL_ERROR;
}
#ifdef HAVE_NO_SEH
static
__attribute__ ((cdecl))
EXCEPTION_DISPOSITION
_except_docopyfile_handler(
    struct _EXCEPTION_RECORD *ExceptionRecord,
    void *EstablisherFrame,
    struct _CONTEXT *ContextRecord,
    void *DispatcherContext)
{
    __asm__ __volatile__ (
            "jmp docopyfile_reentry");
    _except_docopyfile_handler(NULL,NULL,NULL,NULL);
    return 0; /* Function does not return */
}
#endif /* HAVE_NO_SEH */

/*
 *---------------------------------------------------------------------------
 *
 * TclpObjDeleteFile, TclpDeleteFile --
 *
 *      Removes a single file (not a directory).
 *
 * Results:
 *	If the file was successfully deleted, returns TCL_OK.  Otherwise
 *	the return value is TCL_ERROR and errno is set to indicate the
 *	error.  Some possible values for errno are:
 *
 *	EACCES:     a parent directory can't be read and/or written.
 *	EISDIR:	    path is a directory.
 *	ENOENT:	    path doesn't exist or is "".
 *
 *	EACCES:     exists an open file already referring to path.
 *	EACCES:	    path is a char device (nul:, com1:, etc.)
 *
 * Side effects:
 *      The file is deleted, even if it is read-only.
 *
 *---------------------------------------------------------------------------
 */

int 
TclpObjDeleteFile(pathPtr)
    Tcl_Obj *pathPtr;
{
    return TclpDeleteFile(Tcl_FSGetNativePath(pathPtr));
}

int
TclpDeleteFile(
    CONST TCHAR *nativePath)	/* Pathname of file to be removed (native). */
{
    DWORD attr;

    /*
     * The DeleteFile API acts differently under Win95/98 and NT
     * WRT NULL and "". Avoid passing these values.
     */

    if (nativePath == NULL || nativePath[0] == '\0') {
	Tcl_SetErrno(ENOENT);
	return TCL_ERROR;
    }

    if ((*tclWinProcs->deleteFileProc)(nativePath) != FALSE) {
	return TCL_OK;
    }
    TclWinConvertError(GetLastError());

    if (Tcl_GetErrno() == EACCES) {
        attr = (*tclWinProcs->getFileAttributesProc)(nativePath);
	if (attr != 0xffffffff) {
	    if (attr & FILE_ATTRIBUTE_DIRECTORY) {
		if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
		    /* It is a symbolic link -- remove it */
		    if (TclWinSymLinkDelete(nativePath, 0) == 0) {
		        return TCL_OK;
		    }
		}
		
		/* 
		 * If we fall through here, it is a directory.
		 * 
		 * Windows NT reports removing a directory as EACCES instead
		 * of EISDIR.
		 */

		Tcl_SetErrno(EISDIR);
	    } else if (attr & FILE_ATTRIBUTE_READONLY) {
		int res = (*tclWinProcs->setFileAttributesProc)(nativePath, 
			attr & ~((DWORD)FILE_ATTRIBUTE_READONLY));
		if ((res != 0) && ((*tclWinProcs->deleteFileProc)(nativePath)
			!= FALSE)) {
		    return TCL_OK;
		}
		TclWinConvertError(GetLastError());
		if (res != 0) {
		    (*tclWinProcs->setFileAttributesProc)(nativePath, attr);
		}
	    }
	}
    } else if (Tcl_GetErrno() == ENOENT) {
        attr = (*tclWinProcs->getFileAttributesProc)(nativePath);
	if (attr != 0xffffffff) {
	    if (attr & FILE_ATTRIBUTE_DIRECTORY) {
	    	/*
		 * Windows 95 reports removing a directory as ENOENT instead 
		 * of EISDIR. 
		 */

		Tcl_SetErrno(EISDIR);
	    }
	}
    } else if (Tcl_GetErrno() == EINVAL) {
	/*
	 * Windows NT reports removing a char device as EINVAL instead of
	 * EACCES.
	 */

	Tcl_SetErrno(EACCES);
    }

    return TCL_ERROR;
}

/*
 *---------------------------------------------------------------------------
 *
 * TclpObjCreateDirectory --
 *
 *      Creates the specified directory.  All parent directories of the
 *	specified directory must already exist.  The directory is
 *	automatically created with permissions so that user can access
 *	the new directory and create new files or subdirectories in it.
 *
 * Results:
 *	If the directory was successfully created, returns TCL_OK.
 *	Otherwise the return value is TCL_ERROR and errno is set to
 *	indicate the error.  Some possible values for errno are:
 *
 *	EACCES:     a parent directory can't be read and/or written.
 *	EEXIST:	    path already exists.
 *	ENOENT:	    a parent directory doesn't exist.
 *
 * Side effects:
 *      A directory is created.
 *
 *---------------------------------------------------------------------------
 */

int 
TclpObjCreateDirectory(pathPtr)
    Tcl_Obj *pathPtr;
{
    return DoCreateDirectory(Tcl_FSGetNativePath(pathPtr));
}

static int
DoCreateDirectory(
    CONST TCHAR *nativePath)	/* Pathname of directory to create (native). */
{
    DWORD error;
    if ((*tclWinProcs->createDirectoryProc)(nativePath, NULL) == 0) {
	error = GetLastError();
	TclWinConvertError(error);
	return TCL_ERROR;
    }   
    return TCL_OK;
}

/*
 *---------------------------------------------------------------------------
 *
 * TclpObjCopyDirectory --
 *
 *      Recursively copies a directory.  The target directory dst must
 *	not already exist.  Note that this function does not merge two
 *	directory hierarchies, even if the target directory is an an
 *	empty directory.
 *
 * Results:
 *	If the directory was successfully copied, returns TCL_OK.
 *	Otherwise the return value is TCL_ERROR, errno is set to indicate
 *	the error, and the pathname of the file that caused the error
 *	is stored in errorPtr.  See TclpCreateDirectory and TclpCopyFile
 *	for a description of possible values for errno.
 *
 * Side effects:
 *      An exact copy of the directory hierarchy src will be created
 *	with the name dst.  If an error occurs, the error will
 *      be returned immediately, and remaining files will not be
 *	processed.
 *
 *---------------------------------------------------------------------------
 */

int 
TclpObjCopyDirectory(srcPathPtr, destPathPtr, errorPtr)
    Tcl_Obj *srcPathPtr;
    Tcl_Obj *destPathPtr;
    Tcl_Obj **errorPtr;
{
    Tcl_DString ds;
    Tcl_DString srcString, dstString;
    Tcl_Obj *normSrcPtr, *normDestPtr;
    int ret;

    normSrcPtr = Tcl_FSGetNormalizedPath(NULL,srcPathPtr);
    Tcl_WinUtfToTChar(Tcl_GetString(normSrcPtr), -1, &srcString);
    normDestPtr = Tcl_FSGetNormalizedPath(NULL,destPathPtr);
    Tcl_WinUtfToTChar(Tcl_GetString(normDestPtr), -1, &dstString);

    ret = TraverseWinTree(TraversalCopy, &srcString, &dstString, &ds);

    Tcl_DStringFree(&srcString);
    Tcl_DStringFree(&dstString);

    if (ret != TCL_OK) {
	if (!strcmp(Tcl_DStringValue(&ds), Tcl_GetString(normSrcPtr))) {
	    *errorPtr = srcPathPtr;
	} else if (!strcmp(Tcl_DStringValue(&ds), Tcl_GetString(normDestPtr))) {
	    *errorPtr = destPathPtr;
	} else {
	    *errorPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), -1);
	}
	Tcl_DStringFree(&ds);
	Tcl_IncrRefCount(*errorPtr);
    }
    return ret;
}

/*
 *----------------------------------------------------------------------
 *
 * TclpObjRemoveDirectory, DoRemoveDirectory -- 
 *
 *	Removes directory (and its contents, if the recursive flag is set).
 *
 * Results:
 *	If the directory was successfully removed, returns TCL_OK.
 *	Otherwise the return value is TCL_ERROR, errno is set to indicate
 *	the error, and the pathname of the file that caused the error
 *	is stored in errorPtr.  Some possible values for errno are:
 *
 *	EACCES:     path directory can't be read and/or written.
 *	EEXIST:	    path is a non-empty directory.
 *	EINVAL:	    path is root directory or current directory.
 *	ENOENT:	    path doesn't exist or is "".
 * 	ENOTDIR:    path is not a directory.
 *
 *	EACCES:	    path is a char device (nul:, com1:, etc.) (95)
 *	EINVAL:	    path is a char device (nul:, com1:, etc.) (NT)
 *
 * Side effects:
 *	Directory removed.  If an error occurs, the error will be returned
 *	immediately, and remaining files will not be deleted.
 *
 *----------------------------------------------------------------------
 */

int 
TclpObjRemoveDirectory(pathPtr, recursive, errorPtr)
    Tcl_Obj *pathPtr;
    int recursive;
    Tcl_Obj **errorPtr;
{
    Tcl_DString ds;
    Tcl_Obj *normPtr = NULL;
    int ret;
    if (recursive) {
	/* 
	 * In the recursive case, the string rep is used to construct a
	 * Tcl_DString which may be used extensively, so we can't
	 * optimize this case easily.
	 */
	Tcl_DString native;
	normPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr);
	Tcl_WinUtfToTChar(Tcl_GetString(normPtr), -1, &native);
	ret = DoRemoveDirectory(&native, recursive, &ds);
	Tcl_DStringFree(&native);
    } else {
	ret = DoRemoveJustDirectory(Tcl_FSGetNativePath(pathPtr), 
				    0, &ds);
    }
    if (ret != TCL_OK) {
	int len = Tcl_DStringLength(&ds);
	if (len > 0) {
	    if (normPtr != NULL 
	      && !strcmp(Tcl_DStringValue(&ds), Tcl_GetString(normPtr))) {
		*errorPtr = pathPtr;
	    } else {
		*errorPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), -1);
	    }
	    Tcl_IncrRefCount(*errorPtr);
	}
	Tcl_DStringFree(&ds);
    }
    return ret;
}

static int
DoRemoveJustDirectory(
    CONST TCHAR *nativePath,	/* Pathname of directory to be removed
				 * (native). */
    int ignoreError,		/* If non-zero, don't initialize the
                  		 * errorPtr under some circumstances
                  		 * on return. */
    Tcl_DString *errorPtr)	/* If non-NULL, uninitialized or free
				 * DString filled with UTF-8 name of file
				 * causing error. */
{
    DWORD attr;
    /*
     * The RemoveDirectory API acts differently under Win95/98 and NT
     * WRT NULL and "". Avoid passing these values.
     */

    if (nativePath == NULL || nativePath[0] == '\0') {
	Tcl_SetErrno(ENOENT);
	goto end;
    }

    attr = (*tclWinProcs->getFileAttributesProc)(nativePath);

    if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
	/* It is a symbolic link -- remove it */
	if (TclWinSymLinkDelete(nativePath, 0) == 0) {
	    return TCL_OK;
	}
    } else {
	/* Ordinary directory */
	if ((*tclWinProcs->removeDirectoryProc)(nativePath) != FALSE) {
	    return TCL_OK;
	}
    }
    
    TclWinConvertError(GetLastError());

    if (Tcl_GetErrno() == EACCES) {
	attr = (*tclWinProcs->getFileAttributesProc)(nativePath);
	if (attr != 0xffffffff) {
	    if ((attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
		/* 
		 * Windows 95 reports calling RemoveDirectory on a file as an 
		 * EACCES, not an ENOTDIR.
		 */
		
		Tcl_SetErrno(ENOTDIR);
		goto end;
	    }

	    if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
		/* It is a symbolic link -- remove it */
		if (TclWinSymLinkDelete(nativePath, 1) != 0) {
		    goto end;
		}
	    }
	    
	    if (attr & FILE_ATTRIBUTE_READONLY) {
		attr &= ~FILE_ATTRIBUTE_READONLY;
		if ((*tclWinProcs->setFileAttributesProc)(nativePath, attr) == FALSE) {
		    goto end;
		}
		if ((*tclWinProcs->removeDirectoryProc)(nativePath) != FALSE) {
		    return TCL_OK;
		}
		TclWinConvertError(GetLastError());
		(*tclWinProcs->setFileAttributesProc)(nativePath, 
			attr | FILE_ATTRIBUTE_READONLY);
	    }

	    /* 
	     * Windows 95 and Win32s report removing a non-empty directory 
	     * as EACCES, not EEXIST.  If the directory is not empty,
	     * change errno so caller knows what's going on.

	     */

	    if (TclWinGetPlatformId() != VER_PLATFORM_WIN32_NT) {
		CONST char *path, *find;
		HANDLE handle;
		WIN32_FIND_DATAA data;
		Tcl_DString buffer;
		int len;

		path = (CONST char *) nativePath;

		Tcl_DStringInit(&buffer);
		len = strlen(path);
		find = Tcl_DStringAppend(&buffer, path, len);
		if ((len > 0) && (find[len - 1] != '\\')) {
		    Tcl_DStringAppend(&buffer, "\\", 1);
		}
		find = Tcl_DStringAppend(&buffer, "*.*", 3);
		handle = FindFirstFileA(find, &data);
		if (handle != INVALID_HANDLE_VALUE) {
		    while (1) {
			if ((strcmp(data.cFileName, ".") != 0)
				&& (strcmp(data.cFileName, "..") != 0)) {
			    /*
			     * Found something in this directory.
			     */

			    Tcl_SetErrno(EEXIST);
			    break;
			}
			if (FindNextFileA(handle, &data) == FALSE) {
			    break;
			}
		    }
		    FindClose(handle);
		}
		Tcl_DStringFree(&buffer);
	    }
	}
    }
    if (Tcl_GetErrno() == ENOTEMPTY) {
	/* 
	 * The caller depends on EEXIST to signify that the directory is
	 * not empty, not ENOTEMPTY. 
	 */

	Tcl_SetErrno(EEXIST);
    }
    if ((ignoreError != 0) && (Tcl_GetErrno() == EEXIST)) {
	/* 
	 * If we're being recursive, this error may actually
	 * be ok, so we don't want to initialise the errorPtr
	 * yet.
	 */
	return TCL_ERROR;
    }

    end:
    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativePath, -1, errorPtr);
    }
    return TCL_ERROR;

}

static int
DoRemoveDirectory(
    Tcl_DString *pathPtr,	/* Pathname of directory to be removed
				 * (native). */
    int recursive,		/* If non-zero, removes directories that
				 * are nonempty.  Otherwise, will only remove
				 * empty directories. */
    Tcl_DString *errorPtr)	/* If non-NULL, uninitialized or free
				 * DString filled with UTF-8 name of file
				 * causing error. */
{
    int res = DoRemoveJustDirectory(Tcl_DStringValue(pathPtr), recursive, 
				    errorPtr);
    
    if ((res == TCL_ERROR) && (recursive != 0) && (Tcl_GetErrno() == EEXIST)) {
	/*
	 * The directory is nonempty, but the recursive flag has been
	 * specified, so we recursively remove all the files in the directory.
	 */
	return TraverseWinTree(TraversalDelete, pathPtr, NULL, errorPtr);
    } else {
	return res;
    }
}

/*
 *---------------------------------------------------------------------------
 *
 * TraverseWinTree --
 *
 *      Traverse directory tree specified by sourcePtr, calling the function 
 *	traverseProc for each file and directory encountered.  If destPtr 
 *	is non-null, each of name in the sourcePtr directory is appended to 
 *	the directory specified by destPtr and passed as the second argument 
 *	to traverseProc() .
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      None caused by TraverseWinTree, however the user specified 
 *	traverseProc() may change state.  If an error occurs, the error will
 *      be returned immediately, and remaining files will not be processed.
 *
 *---------------------------------------------------------------------------
 */

static int 
TraverseWinTree(
    TraversalProc *traverseProc,/* Function to call for every file and
				 * directory in source hierarchy. */
    Tcl_DString *sourcePtr,	/* Pathname of source directory to be
				 * traversed (native). */
    Tcl_DString *targetPtr,	/* Pathname of directory to traverse in
				 * parallel with source directory (native),
				 * may be NULL. */
    Tcl_DString *errorPtr)	/* If non-NULL, uninitialized or free
				 * DString filled with UTF-8 name of file
				 * causing error. */
{
    DWORD sourceAttr;
    TCHAR *nativeSource, *nativeTarget, *nativeErrfile;
    int result, found, sourceLen, targetLen, oldSourceLen, oldTargetLen;
    HANDLE handle;
    WIN32_FIND_DATAT data;

    nativeErrfile = NULL;
    result = TCL_OK;
    oldTargetLen = 0;		/* lint. */

    nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr);
    nativeTarget = (TCHAR *) (targetPtr == NULL 
			      ? NULL : Tcl_DStringValue(targetPtr));
    
    oldSourceLen = Tcl_DStringLength(sourcePtr);
    sourceAttr = (*tclWinProcs->getFileAttributesProc)(nativeSource);
    if (sourceAttr == 0xffffffff) {
	nativeErrfile = nativeSource;
	goto end;
    }
    
    if (sourceAttr & FILE_ATTRIBUTE_REPARSE_POINT) {
	/*
	 * Process the symbolic link
	 */

	return (*traverseProc)(nativeSource, nativeTarget, 
			       DOTREE_LINK, errorPtr);
    }
    
    if ((sourceAttr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
	/*
	 * Process the regular file
	 */

	return (*traverseProc)(nativeSource, nativeTarget, DOTREE_F, errorPtr);
    }

    if (tclWinProcs->useWide) {
	Tcl_DStringAppend(sourcePtr, (char *) L"\\*.*", 4 * sizeof(WCHAR) + 1);
	Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1);
    } else {
	Tcl_DStringAppend(sourcePtr, "\\*.*", 4);
    }
    nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr);
    handle = (*tclWinProcs->findFirstFileProc)(nativeSource, &data);
    if (handle == INVALID_HANDLE_VALUE) {      
	/* 
	 * Can't read directory
	 */

	TclWinConvertError(GetLastError());
	nativeErrfile = nativeSource;
	goto end;
    }

    nativeSource[oldSourceLen + 1] = '\0';
    Tcl_DStringSetLength(sourcePtr, oldSourceLen);
    result = (*traverseProc)(nativeSource, nativeTarget, DOTREE_PRED, errorPtr);
    if (result != TCL_OK) {
	FindClose(handle);
	return result;
    }

    sourceLen = oldSourceLen;

    if (tclWinProcs->useWide) {
	sourceLen += sizeof(WCHAR);
	Tcl_DStringAppend(sourcePtr, (char *) L"\\", sizeof(WCHAR) + 1);
	Tcl_DStringSetLength(sourcePtr, sourceLen);
    } else {
	sourceLen += 1;
	Tcl_DStringAppend(sourcePtr, "\\", 1);
    }
    if (targetPtr != NULL) {
	oldTargetLen = Tcl_DStringLength(targetPtr);

	targetLen = oldTargetLen;
	if (tclWinProcs->useWide) {
	    targetLen += sizeof(WCHAR);
	    Tcl_DStringAppend(targetPtr, (char *) L"\\", sizeof(WCHAR) + 1);
	    Tcl_DStringSetLength(targetPtr, targetLen);
	} else {
	    targetLen += 1;
	    Tcl_DStringAppend(targetPtr, "\\", 1);
	}
    }

    found = 1;
    for ( ; found; found = (*tclWinProcs->findNextFileProc)(handle, &data)) {
	TCHAR *nativeName;
	int len;

	if (tclWinProcs->useWide) {
	    WCHAR *wp;

	    wp = data.w.cFileName;
	    if (*wp == '.') {
		wp++;
		if (*wp == '.') {
		    wp++;
		}
		if (*wp == '\0') {
		    continue;
		}
	    }
	    nativeName = (TCHAR *) data.w.cFileName;
	    len = Tcl_UniCharLen(data.w.cFileName) * sizeof(WCHAR);
	} else {
	    if ((strcmp(data.a.cFileName, ".") == 0) 
		    || (strcmp(data.a.cFileName, "..") == 0)) {
		continue;
	    }
	    nativeName = (TCHAR *) data.a.cFileName;
	    len = strlen(data.a.cFileName);
	}

	/* 
	 * Append name after slash, and recurse on the file. 
	 */

	Tcl_DStringAppend(sourcePtr, (char *) nativeName, len + 1);
	Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1);
	if (targetPtr != NULL) {
	    Tcl_DStringAppend(targetPtr, (char *) nativeName, len + 1);
	    Tcl_DStringSetLength(targetPtr, Tcl_DStringLength(targetPtr) - 1);
	}
	result = TraverseWinTree(traverseProc, sourcePtr, targetPtr, 
		errorPtr);
	if (result != TCL_OK) {
	    break;
	}

	/*
	 * Remove name after slash.
	 */

	Tcl_DStringSetLength(sourcePtr, sourceLen);
	if (targetPtr != NULL) {
	    Tcl_DStringSetLength(targetPtr, targetLen);
	}
    }
    FindClose(handle);

    /*
     * Strip off the trailing slash we added
     */

    Tcl_DStringSetLength(sourcePtr, oldSourceLen + 1);
    Tcl_DStringSetLength(sourcePtr, oldSourceLen);
    if (targetPtr != NULL) {
	Tcl_DStringSetLength(targetPtr, oldTargetLen + 1);
	Tcl_DStringSetLength(targetPtr, oldTargetLen);
    }
    if (result == TCL_OK) {
	/*
	 * Call traverseProc() on a directory after visiting all the
	 * files in that directory.
	 */

	result = (*traverseProc)(Tcl_DStringValue(sourcePtr), 
			(targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)), 
			DOTREE_POSTD, errorPtr);
    }
    end:
    if (nativeErrfile != NULL) {
	TclWinConvertError(GetLastError());
	if (errorPtr != NULL) {
	    Tcl_WinTCharToUtf(nativeErrfile, -1, errorPtr);
	}
	result = TCL_ERROR;
    }
	    
    return result;
}

/*
 *----------------------------------------------------------------------
 *
 * TraversalCopy
 *
 *      Called from TraverseUnixTree in order to execute a recursive
 *      copy of a directory.
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      Depending on the value of type, src may be copied to dst.
 *      
 *----------------------------------------------------------------------
 */

static int 
TraversalCopy(
    CONST TCHAR *nativeSrc,	/* Source pathname to copy. */
    CONST TCHAR *nativeDst,	/* Destination pathname of copy. */
    int type,			/* Reason for call - see TraverseWinTree() */
    Tcl_DString *errorPtr)	/* If non-NULL, initialized DString filled
				 * with UTF-8 name of file causing error. */
{
    switch (type) {
	case DOTREE_F: {
	    if (DoCopyFile(nativeSrc, nativeDst) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_LINK: {
	    if (TclWinSymLinkCopyDirectory(nativeSrc, nativeDst) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_PRED: {
	    if (DoCreateDirectory(nativeDst) == TCL_OK) {
		DWORD attr = (*tclWinProcs->getFileAttributesProc)(nativeSrc);
		if ((*tclWinProcs->setFileAttributesProc)(nativeDst, attr) 
		  != FALSE) {
		    return TCL_OK;
		}
		TclWinConvertError(GetLastError());
	    }
	    break;
	}
        case DOTREE_POSTD: {
	    return TCL_OK;
	}
    }

    /*
     * There shouldn't be a problem with src, because we already
     * checked it to get here.
     */

    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativeDst, -1, errorPtr);
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * TraversalDelete --
 *
 *      Called by procedure TraverseWinTree for every file and
 *      directory that it encounters in a directory hierarchy. This
 *      procedure unlinks files, and removes directories after all the
 *      containing files have been processed.
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      Files or directory specified by src will be deleted. If an
 *      error occurs, the windows error is converted to a Posix error
 *      and errno is set accordingly.
 *
 *----------------------------------------------------------------------
 */

static int
TraversalDelete( 
    CONST TCHAR *nativeSrc,	/* Source pathname to delete. */
    CONST TCHAR *dstPtr,	/* Not used. */
    int type,			/* Reason for call - see TraverseWinTree() */
    Tcl_DString *errorPtr)	/* If non-NULL, initialized DString filled
				 * with UTF-8 name of file causing error. */
{
    switch (type) {
	case DOTREE_F: {
	    if (TclpDeleteFile(nativeSrc) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_LINK: {
	    if (DoRemoveJustDirectory(nativeSrc, 0, NULL) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_PRED: {
	    return TCL_OK;
	}
	case DOTREE_POSTD: {
	    if (DoRemoveJustDirectory(nativeSrc, 0, NULL) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
    }

    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativeSrc, -1, errorPtr);
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * StatError --
 *
 *	Sets the object result with the appropriate error.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      The interp's object result is set with an error message
 *	based on the objIndex, fileName and errno.
 *
 *----------------------------------------------------------------------
 */

static void
StatError(
    Tcl_Interp *interp,		/* The interp that has the error */
    Tcl_Obj *fileName)	        /* The name of the file which caused the 
				 * error. */
{
    TclWinConvertError(GetLastError());
    Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), 
			   "could not read \"", Tcl_GetString(fileName), 
			   "\": ", Tcl_PosixError(interp), 
			   (char *) NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * GetWinFileAttributes --
 *
 *      Returns a Tcl_Obj containing the value of a file attribute.
 *	This routine gets the -hidden, -readonly or -system attribute.
 *
 * Results:
 *      Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object
 *	will have ref count 0. If the return value is not TCL_OK,
 *	attributePtrPtr is not touched.
 *
 * Side effects:
 *      A new object is allocated if the file is valid.
 *
 *----------------------------------------------------------------------
 */

static int
GetWinFileAttributes(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,	        /* The name of the file. */
    Tcl_Obj **attributePtrPtr)	/* A pointer to return the object with. */
{
    DWORD result;
    CONST TCHAR *nativeName;
    int attr;
    
    nativeName = Tcl_FSGetNativePath(fileName);
    result = (*tclWinProcs->getFileAttributesProc)(nativeName);

    if (result == 0xffffffff) {
	StatError(interp, fileName);
	return TCL_ERROR;
    }

    attr = (int)(result & attributeArray[objIndex]);
    if ((objIndex == WIN_HIDDEN_ATTRIBUTE) && (attr != 0)) {
	/* 
	 * It is hidden.  However there is a bug on some Windows
	 * OSes in which root volumes (drives) formatted as NTFS
	 * are declared hidden when they are not (and cannot be).
	 * 
	 * We test for, and fix that case, here.
	 */
	int len;
	char *str = Tcl_GetStringFromObj(fileName,&len);
	if (len < 4) {
	    if (len == 0) {
		/* 
		 * Not sure if this is possible, but we pass it on
		 * anyway 
		 */
	    } else if (len == 1 && (str[0] == '/' || str[0] == '\\')) {
		/* Path is pointing to the root volume */
		attr = 0;
	    } else if ((str[1] == ':') 
		       && (len == 2 || (str[2] == '/' || str[2] == '\\'))) {
		/* Path is of the form 'x:' or 'x:/' or 'x:\' */
		attr = 0;
	    }
	}
    }
    *attributePtrPtr = Tcl_NewBooleanObj(attr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * ConvertFileNameFormat --
 *
 *      Returns a Tcl_Obj containing either the long or short version of the 
 *	file name.
 *
 * Results:
 *      Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object
 *	will have ref count 0. If the return value is not TCL_OK,
 *	attributePtrPtr is not touched.
 *	
 *	Warning: if you pass this function a drive name like 'c:' it
 *	will actually return the current working directory on that
 *	drive.  To avoid this, make sure the drive name ends in a
 *	slash, like this 'c:/'.
 *
 * Side effects:
 *      A new object is allocated if the file is valid.
 *
 *----------------------------------------------------------------------
 */

static int
ConvertFileNameFormat(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,   	/* The name of the file. */
    int longShort,		/* 0 to short name, 1 to long name. */
    Tcl_Obj **attributePtrPtr)	/* A pointer to return the object with. */
{
    int pathc, i;
    Tcl_Obj *splitPath;
    int result = TCL_OK;

    splitPath = Tcl_FSSplitPath(fileName, &pathc);

    if (splitPath == NULL || pathc == 0) {
	if (interp != NULL) {
	    Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), 
		"could not read \"", Tcl_GetString(fileName),
		"\": no such file or directory", 
		(char *) NULL);
	}
	result = TCL_ERROR;
	goto cleanup;
    }
    
    for (i = 0; i < pathc; i++) {
	Tcl_Obj *elt;
	char *pathv;
	int pathLen;
	Tcl_ListObjIndex(NULL, splitPath, i, &elt);
	
	pathv = Tcl_GetStringFromObj(elt, &pathLen);
	if ((pathv[0] == '/')
		|| ((pathLen == 3) && (pathv[1] == ':'))
		|| (strcmp(pathv, ".") == 0)
		|| (strcmp(pathv, "..") == 0)) {
	    /*
	     * Handle "/", "//machine/export", "c:/", "." or ".." by just
	     * copying the string literally.  Uppercase the drive letter,
	     * just because it looks better under Windows to do so.
	     */

	    simple:
	    /* Here we are modifying the string representation in place */
	    /* I believe this is legal, since this won't affect any 
	     * file representation this thing may have. */
	    pathv[0] = (char) Tcl_UniCharToUpper(UCHAR(pathv[0]));
	} else {
	    Tcl_Obj *tempPath;
	    Tcl_DString ds;
	    Tcl_DString dsTemp;
	    TCHAR *nativeName;
	    char *tempString;
	    int tempLen;
	    WIN32_FIND_DATAT data;
	    HANDLE handle;
	    DWORD attr;

	    tempPath = Tcl_FSJoinPath(splitPath, i+1);
	    Tcl_IncrRefCount(tempPath);
	    /* 
	     * We'd like to call Tcl_FSGetNativePath(tempPath)
	     * but that is likely to lead to infinite loops 
	     */
	    Tcl_DStringInit(&ds);
	    tempString = Tcl_GetStringFromObj(tempPath,&tempLen);
	    nativeName = Tcl_WinUtfToTChar(tempString, tempLen, &ds);
	    Tcl_DecrRefCount(tempPath);
	    handle = (*tclWinProcs->findFirstFileProc)(nativeName, &data);
	    if (handle == INVALID_HANDLE_VALUE) {
		/*
		 * FindFirstFile() doesn't like root directories.  We 
		 * would only get a root directory here if the caller
		 * specified "c:" or "c:." and the current directory on the
		 * drive was the root directory
		 */

		attr = (*tclWinProcs->getFileAttributesProc)(nativeName);
		if ((attr != 0xFFFFFFFF) && (attr & FILE_ATTRIBUTE_DIRECTORY)) {
		    Tcl_DStringFree(&ds);
		    goto simple;
		}
	    }

	    if (handle == INVALID_HANDLE_VALUE) {
		Tcl_DStringFree(&ds);
		if (interp != NULL) {
		    StatError(interp, fileName);
		}
		result = TCL_ERROR;
		goto cleanup;
	    }
	    if (tclWinProcs->useWide) {
		nativeName = (TCHAR *) data.w.cAlternateFileName;
		if (longShort) {
		    if (data.w.cFileName[0] != '\0') {
			nativeName = (TCHAR *) data.w.cFileName;
		    } 
		} else {
		    if (data.w.cAlternateFileName[0] == '\0') {
			nativeName = (TCHAR *) data.w.cFileName;
		    }
		}
	    } else {
		nativeName = (TCHAR *) data.a.cAlternateFileName;
		if (longShort) {
		    if (data.a.cFileName[0] != '\0') {
			nativeName = (TCHAR *) data.a.cFileName;
		    } 
		} else {
		    if (data.a.cAlternateFileName[0] == '\0') {
			nativeName = (TCHAR *) data.a.cFileName;
		    }
		}
	    }

	    /*
	     * Purify reports a extraneous UMR in Tcl_WinTCharToUtf() trying 
	     * to dereference nativeName as a Unicode string.  I have proven 
	     * to myself that purify is wrong by running the following 
	     * example when nativeName == data.w.cAlternateFileName and 
	     * noting that purify doesn't complain about the first line,
	     * but does complain about the second.
	     *
	     *	fprintf(stderr, "%d\n", data.w.cAlternateFileName[0]);
	     *	fprintf(stderr, "%d\n", ((WCHAR *) nativeName)[0]);
	     */

	    Tcl_DStringInit(&dsTemp);
	    Tcl_WinTCharToUtf(nativeName, -1, &dsTemp);
	    /* Deal with issues of tildes being absolute */
	    if (Tcl_DStringValue(&dsTemp)[0] == '~') {
		tempPath = Tcl_NewStringObj("./",2);
		Tcl_AppendToObj(tempPath, Tcl_DStringValue(&dsTemp), 
				Tcl_DStringLength(&dsTemp));
	    } else {
		tempPath = Tcl_NewStringObj(Tcl_DStringValue(&dsTemp), 
					    Tcl_DStringLength(&dsTemp));
	    }
	    Tcl_ListObjReplace(NULL, splitPath, i, 1, 1, &tempPath);
	    Tcl_DStringFree(&ds);
	    Tcl_DStringFree(&dsTemp);
	    FindClose(handle);
	}
    }

    *attributePtrPtr = Tcl_FSJoinPath(splitPath, -1);

cleanup:
    if (splitPath != NULL) {
	Tcl_DecrRefCount(splitPath);
    }
  
    return result;
}

/*
 *----------------------------------------------------------------------
 *
 * GetWinFileLongName --
 *
 *      Returns a Tcl_Obj containing the long version of the file
 *	name.
 *
 * Results:
 *      Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object
 *	will have ref count 0. If the return value is not TCL_OK,
 *	attributePtrPtr is not touched.
 *
 * Side effects:
 *      A new object is allocated if the file is valid.
 *
 *----------------------------------------------------------------------
 */

static int
GetWinFileLongName(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,  	/* The name of the file. */
    Tcl_Obj **attributePtrPtr)	/* A pointer to return the object with. */
{
    return ConvertFileNameFormat(interp, objIndex, fileName, 1, attributePtrPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * GetWinFileShortName --
 *
 *      Returns a Tcl_Obj containing the short version of the file
 *	name.
 *
 * Results:
 *      Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object
 *	will have ref count 0. If the return value is not TCL_OK,
 *	attributePtrPtr is not touched.
 *
 * Side effects:
 *      A new object is allocated if the file is valid.
 *
 *----------------------------------------------------------------------
 */

static int
GetWinFileShortName(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,  	/* The name of the file. */
    Tcl_Obj **attributePtrPtr)	/* A pointer to return the object with. */
{
    return ConvertFileNameFormat(interp, objIndex, fileName, 0, attributePtrPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * SetWinFileAttributes --
 *
 *	Set the file attributes to the value given by attributePtr.
 *	This routine sets the -hidden, -readonly, or -system attributes.
 *
 * Results:
 *      Standard TCL error.
 *
 * Side effects:
 *      The file's attribute is set.
 *
 *----------------------------------------------------------------------
 */

static int
SetWinFileAttributes(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,  	/* The name of the file. */
    Tcl_Obj *attributePtr)	/* The new value of the attribute. */
{
    DWORD fileAttributes;
    int yesNo;
    int result;
    CONST TCHAR *nativeName;

    nativeName = Tcl_FSGetNativePath(fileName);
    fileAttributes = (*tclWinProcs->getFileAttributesProc)(nativeName);

    if (fileAttributes == 0xffffffff) {
	StatError(interp, fileName);
	return TCL_ERROR;
    }

    result = Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo);
    if (result != TCL_OK) {
	return result;
    }

    if (yesNo) {
	fileAttributes |= (attributeArray[objIndex]);
    } else {
	fileAttributes &= ~(attributeArray[objIndex]);
    }

    if (!(*tclWinProcs->setFileAttributesProc)(nativeName, fileAttributes)) {
	StatError(interp, fileName);
	return TCL_ERROR;
    }

    return result;
}

/*
 *----------------------------------------------------------------------
 *
 * SetWinFileLongName --
 *
 *	The attribute in question is a readonly attribute and cannot
 *	be set.
 *
 * Results:
 *      TCL_ERROR
 *
 * Side effects:
 *      The object result is set to a pertinent error message.
 *
 *----------------------------------------------------------------------
 */

static int
CannotSetAttribute(
    Tcl_Interp *interp,		/* The interp we are using for errors. */
    int objIndex,		/* The index of the attribute. */
    Tcl_Obj *fileName,	        /* The name of the file. */
    Tcl_Obj *attributePtr)	/* The new value of the attribute. */
{
    Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), 
	    "cannot set attribute \"", tclpFileAttrStrings[objIndex],
	    "\" for file \"", Tcl_GetString(fileName), 
	    "\": attribute is readonly", 
	    (char *) NULL);
    return TCL_ERROR;
}


/*
 *---------------------------------------------------------------------------
 *
 * TclpObjListVolumes --
 *
 *	Lists the currently mounted volumes
 *
 * Results:
 *	The list of volumes.
 *
 * Side effects:
 *	None
 *
 *---------------------------------------------------------------------------
 */

Tcl_Obj*
TclpObjListVolumes(void)
{
    Tcl_Obj *resultPtr, *elemPtr;
    char buf[40 * 4];		/* There couldn't be more than 30 drives??? */
    int i;
    char *p;

    resultPtr = Tcl_NewObj();

    /*
     * On Win32s:
     * GetLogicalDriveStrings() isn't implemented.
     * GetLogicalDrives() returns incorrect information.
     */

    if (GetLogicalDriveStringsA(sizeof(buf), buf) == 0) {
	/*
	 * GetVolumeInformation() will detects all drives, but causes
	 * chattering on empty floppy drives.  We only do this if 
	 * GetLogicalDriveStrings() didn't work.  It has also been reported
	 * that on some laptops it takes a while for GetVolumeInformation()
	 * to return when pinging an empty floppy drive, another reason to 
	 * try to avoid calling it.
	 */

	buf[1] = ':';
	buf[2] = '/';
	buf[3] = '\0';

	for (i = 0; i < 26; i++) {
	    buf[0] = (char) ('a' + i);
	    if (GetVolumeInformationA(buf, NULL, 0, NULL, NULL, NULL, NULL, 0)  
		    || (GetLastError() == ERROR_NOT_READY)) {
		elemPtr = Tcl_NewStringObj(buf, -1);
		Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr);
	    }
	}
    } else {
	for (p = buf; *p != '\0'; p += 4) {
	    p[2] = '/';
	    elemPtr = Tcl_NewStringObj(p, -1);
	    Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr);
	}
    }
    
    Tcl_IncrRefCount(resultPtr);
    return resultPtr;
}