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
|
// Windows/FileDir.cpp
#include "StdAfx.h"
#ifndef _UNICODE
#include "../Common/StringConvert.h"
#endif
#include "FileDir.h"
#include "FileFind.h"
#include "FileName.h"
#ifndef _UNICODE
extern bool g_IsNT;
#endif
using namespace NWindows;
using namespace NFile;
using namespace NName;
namespace NWindows {
namespace NFile {
namespace NDir {
#ifndef UNDER_CE
bool GetWindowsDir(FString &path)
{
UINT needLength;
#ifndef _UNICODE
if (!g_IsNT)
{
TCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetWindowsDirectory(s, MAX_PATH + 1);
path = fas2fs(s);
}
else
#endif
{
WCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetWindowsDirectoryW(s, MAX_PATH + 1);
path = us2fs(s);
}
return (needLength > 0 && needLength <= MAX_PATH);
}
bool GetSystemDir(FString &path)
{
UINT needLength;
#ifndef _UNICODE
if (!g_IsNT)
{
TCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetSystemDirectory(s, MAX_PATH + 1);
path = fas2fs(s);
}
else
#endif
{
WCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetSystemDirectoryW(s, MAX_PATH + 1);
path = us2fs(s);
}
return (needLength > 0 && needLength <= MAX_PATH);
}
#endif
bool SetDirTime(CFSTR path, const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime)
{
#ifndef _UNICODE
if (!g_IsNT)
{
::SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return false;
}
#endif
HANDLE hDir = INVALID_HANDLE_VALUE;
IF_USE_MAIN_PATH
hDir = ::CreateFileW(fs2us(path), GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
#ifdef WIN_LONG_PATH
if (hDir == INVALID_HANDLE_VALUE && USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
hDir = ::CreateFileW(superPath, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
}
#endif
bool res = false;
if (hDir != INVALID_HANDLE_VALUE)
{
res = BOOLToBool(::SetFileTime(hDir, cTime, aTime, mTime));
::CloseHandle(hDir);
}
return res;
}
bool SetFileAttrib(CFSTR path, DWORD attrib)
{
#ifndef _UNICODE
if (!g_IsNT)
{
if (::SetFileAttributes(fs2fas(path), attrib))
return true;
}
else
#endif
{
IF_USE_MAIN_PATH
if (::SetFileAttributesW(fs2us(path), attrib))
return true;
#ifdef WIN_LONG_PATH
if (USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
return BOOLToBool(::SetFileAttributesW(superPath, attrib));
}
#endif
}
return false;
}
bool RemoveDir(CFSTR path)
{
#ifndef _UNICODE
if (!g_IsNT)
{
if (::RemoveDirectory(fs2fas(path)))
return true;
}
else
#endif
{
IF_USE_MAIN_PATH
if (::RemoveDirectoryW(fs2us(path)))
return true;
#ifdef WIN_LONG_PATH
if (USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
return BOOLToBool(::RemoveDirectoryW(superPath));
}
#endif
}
return false;
}
bool MyMoveFile(CFSTR oldFile, CFSTR newFile)
{
#ifndef _UNICODE
if (!g_IsNT)
{
if (::MoveFile(fs2fas(oldFile), fs2fas(newFile)))
return true;
}
else
#endif
{
IF_USE_MAIN_PATH_2(oldFile, newFile)
if (::MoveFileW(fs2us(oldFile), fs2us(newFile)))
return true;
#ifdef WIN_LONG_PATH
if (USE_SUPER_PATH_2)
{
UString d1, d2;
if (GetSuperPaths(oldFile, newFile, d1, d2, USE_MAIN_PATH_2))
return BOOLToBool(::MoveFileW(d1, d2));
}
#endif
}
return false;
}
#ifndef UNDER_CE
EXTERN_C_BEGIN
typedef BOOL (WINAPI *Func_CreateHardLinkW)(
LPCWSTR lpFileName,
LPCWSTR lpExistingFileName,
LPSECURITY_ATTRIBUTES lpSecurityAttributes
);
EXTERN_C_END
bool MyCreateHardLink(CFSTR newFileName, CFSTR existFileName)
{
#ifndef _UNICODE
if (!g_IsNT)
{
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return false;
/*
if (::CreateHardLink(fs2fas(newFileName), fs2fas(existFileName), NULL))
return true;
*/
}
else
#endif
{
Func_CreateHardLinkW my_CreateHardLinkW = (Func_CreateHardLinkW)
::GetProcAddress(::GetModuleHandleW(L"kernel32.dll"), "CreateHardLinkW");
if (!my_CreateHardLinkW)
return false;
IF_USE_MAIN_PATH_2(newFileName, existFileName)
if (my_CreateHardLinkW(fs2us(newFileName), fs2us(existFileName), NULL))
return true;
#ifdef WIN_LONG_PATH
if (USE_SUPER_PATH_2)
{
UString d1, d2;
if (GetSuperPaths(newFileName, existFileName, d1, d2, USE_MAIN_PATH_2))
return BOOLToBool(my_CreateHardLinkW(d1, d2, NULL));
}
#endif
}
return false;
}
#endif
/*
WinXP-64 CreateDir():
"" - ERROR_PATH_NOT_FOUND
\ - ERROR_ACCESS_DENIED
C:\ - ERROR_ACCESS_DENIED, if there is such drive,
D:\folder - ERROR_PATH_NOT_FOUND, if there is no such drive,
C:\nonExistent\folder - ERROR_PATH_NOT_FOUND
C:\existFolder - ERROR_ALREADY_EXISTS
C:\existFolder\ - ERROR_ALREADY_EXISTS
C:\folder - OK
C:\folder\ - OK
\\Server\nonExistent - ERROR_BAD_NETPATH
\\Server\Share_Readonly - ERROR_ACCESS_DENIED
\\Server\Share - ERROR_ALREADY_EXISTS
\\Server\Share_NTFS_drive - ERROR_ACCESS_DENIED
\\Server\Share_FAT_drive - ERROR_ALREADY_EXISTS
*/
bool CreateDir(CFSTR path)
{
#ifndef _UNICODE
if (!g_IsNT)
{
if (::CreateDirectory(fs2fas(path), NULL))
return true;
}
else
#endif
{
IF_USE_MAIN_PATH
if (::CreateDirectoryW(fs2us(path), NULL))
return true;
#ifdef WIN_LONG_PATH
if ((!USE_MAIN_PATH || ::GetLastError() != ERROR_ALREADY_EXISTS) && USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
return BOOLToBool(::CreateDirectoryW(superPath, NULL));
}
#endif
}
return false;
}
/*
CreateDir2 returns true, if directory can contain files after the call (two cases):
1) the directory already exists
2) the directory was created
path must be WITHOUT trailing path separator.
We need CreateDir2, since fileInfo.Find() for reserved names like "com8"
returns FILE instead of DIRECTORY. And we need to use SuperPath */
static bool CreateDir2(CFSTR path)
{
#ifndef _UNICODE
if (!g_IsNT)
{
if (::CreateDirectory(fs2fas(path), NULL))
return true;
}
else
#endif
{
IF_USE_MAIN_PATH
if (::CreateDirectoryW(fs2us(path), NULL))
return true;
#ifdef WIN_LONG_PATH
if ((!USE_MAIN_PATH || ::GetLastError() != ERROR_ALREADY_EXISTS) && USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
{
if (::CreateDirectoryW(superPath, NULL))
return true;
if (::GetLastError() != ERROR_ALREADY_EXISTS)
return false;
NFind::CFileInfo fi;
if (!fi.Find(us2fs(superPath)))
return false;
return fi.IsDir();
}
}
#endif
}
if (::GetLastError() != ERROR_ALREADY_EXISTS)
return false;
NFind::CFileInfo fi;
if (!fi.Find(path))
return false;
return fi.IsDir();
}
bool CreateComplexDir(CFSTR _path)
{
#ifdef _WIN32
{
DWORD attrib = NFind::GetFileAttrib(_path);
if (attrib != INVALID_FILE_ATTRIBUTES && (attrib & FILE_ATTRIBUTE_DIRECTORY) != 0)
return true;
}
#ifndef UNDER_CE
if (IsDriveRootPath_SuperAllowed(_path))
return false;
unsigned prefixSize = GetRootPrefixSize(_path);
#endif
#endif
FString path (_path);
int pos = path.ReverseFind_PathSepar();
if (pos >= 0 && (unsigned)pos == path.Len() - 1)
{
if (path.Len() == 1)
return true;
path.DeleteBack();
}
const FString path2 (path);
pos = path.Len();
for (;;)
{
if (CreateDir2(path))
break;
if (::GetLastError() == ERROR_ALREADY_EXISTS)
return false;
pos = path.ReverseFind_PathSepar();
if (pos < 0 || pos == 0)
return false;
#if defined(_WIN32) && !defined(UNDER_CE)
if (pos == 1 && IS_PATH_SEPAR(path[0]))
return false;
if (prefixSize >= (unsigned)pos + 1)
return false;
#endif
path.DeleteFrom(pos);
}
while (pos < (int)path2.Len())
{
int pos2 = NName::FindSepar(path2.Ptr(pos + 1));
if (pos2 < 0)
pos = path2.Len();
else
pos += 1 + pos2;
path.SetFrom(path2, pos);
if (!CreateDir(path))
return false;
}
return true;
}
bool DeleteFileAlways(CFSTR path)
{
/* If alt stream, we also need to clear READ-ONLY attribute of main file before delete.
SetFileAttrib("name:stream", ) changes attributes of main file. */
{
DWORD attrib = NFind::GetFileAttrib(path);
if (attrib != INVALID_FILE_ATTRIBUTES
&& (attrib & FILE_ATTRIBUTE_DIRECTORY) == 0
&& (attrib & FILE_ATTRIBUTE_READONLY) != 0)
{
if (!SetFileAttrib(path, attrib & ~FILE_ATTRIBUTE_READONLY))
return false;
}
}
#ifndef _UNICODE
if (!g_IsNT)
{
if (::DeleteFile(fs2fas(path)))
return true;
}
else
#endif
{
/* DeleteFile("name::$DATA") deletes all alt streams (same as delete DeleteFile("name")).
Maybe it's better to open "name::$DATA" and clear data for unnamed stream? */
IF_USE_MAIN_PATH
if (::DeleteFileW(fs2us(path)))
return true;
#ifdef WIN_LONG_PATH
if (USE_SUPER_PATH)
{
UString superPath;
if (GetSuperPath(path, superPath, USE_MAIN_PATH))
return BOOLToBool(::DeleteFileW(superPath));
}
#endif
}
return false;
}
bool RemoveDirWithSubItems(const FString &path)
{
bool needRemoveSubItems = true;
{
NFind::CFileInfo fi;
if (!fi.Find(path))
return false;
if (!fi.IsDir())
{
::SetLastError(ERROR_DIRECTORY);
return false;
}
if (fi.HasReparsePoint())
needRemoveSubItems = false;
}
if (needRemoveSubItems)
{
FString s (path);
s.Add_PathSepar();
const unsigned prefixSize = s.Len();
NFind::CEnumerator enumerator;
enumerator.SetDirPrefix(s);
NFind::CFileInfo fi;
while (enumerator.Next(fi))
{
s.DeleteFrom(prefixSize);
s += fi.Name;
if (fi.IsDir())
{
if (!RemoveDirWithSubItems(s))
return false;
}
else if (!DeleteFileAlways(s))
return false;
}
}
if (!SetFileAttrib(path, 0))
return false;
return RemoveDir(path);
}
#ifdef UNDER_CE
bool MyGetFullPathName(CFSTR path, FString &resFullPath)
{
resFullPath = path;
return true;
}
#else
bool MyGetFullPathName(CFSTR path, FString &resFullPath)
{
return GetFullPath(path, resFullPath);
}
bool SetCurrentDir(CFSTR path)
{
// SetCurrentDirectory doesn't support \\?\ prefix
#ifndef _UNICODE
if (!g_IsNT)
{
return BOOLToBool(::SetCurrentDirectory(fs2fas(path)));
}
else
#endif
{
return BOOLToBool(::SetCurrentDirectoryW(fs2us(path)));
}
}
bool GetCurrentDir(FString &path)
{
path.Empty();
DWORD needLength;
#ifndef _UNICODE
if (!g_IsNT)
{
TCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetCurrentDirectory(MAX_PATH + 1, s);
path = fas2fs(s);
}
else
#endif
{
WCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetCurrentDirectoryW(MAX_PATH + 1, s);
path = us2fs(s);
}
return (needLength > 0 && needLength <= MAX_PATH);
}
#endif
bool GetFullPathAndSplit(CFSTR path, FString &resDirPrefix, FString &resFileName)
{
bool res = MyGetFullPathName(path, resDirPrefix);
if (!res)
resDirPrefix = path;
int pos = resDirPrefix.ReverseFind_PathSepar();
resFileName = resDirPrefix.Ptr(pos + 1);
resDirPrefix.DeleteFrom(pos + 1);
return res;
}
bool GetOnlyDirPrefix(CFSTR path, FString &resDirPrefix)
{
FString resFileName;
return GetFullPathAndSplit(path, resDirPrefix, resFileName);
}
bool MyGetTempPath(FString &path)
{
path.Empty();
DWORD needLength;
#ifndef _UNICODE
if (!g_IsNT)
{
TCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetTempPath(MAX_PATH + 1, s);
path = fas2fs(s);
}
else
#endif
{
WCHAR s[MAX_PATH + 2];
s[0] = 0;
needLength = ::GetTempPathW(MAX_PATH + 1, s);;
path = us2fs(s);
}
return (needLength > 0 && needLength <= MAX_PATH);
}
static bool CreateTempFile(CFSTR prefix, bool addRandom, FString &path, NIO::COutFile *outFile)
{
UInt32 d = (GetTickCount() << 12) ^ (GetCurrentThreadId() << 14) ^ GetCurrentProcessId();
for (unsigned i = 0; i < 100; i++)
{
path = prefix;
if (addRandom)
{
char s[16];
UInt32 val = d;
unsigned k;
for (k = 0; k < 8; k++)
{
unsigned t = val & 0xF;
val >>= 4;
s[k] = (char)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
}
s[k] = '\0';
if (outFile)
path += '.';
path += s;
UInt32 step = GetTickCount() + 2;
if (step == 0)
step = 1;
d += step;
}
addRandom = true;
if (outFile)
path += ".tmp";
if (NFind::DoesFileOrDirExist(path))
{
SetLastError(ERROR_ALREADY_EXISTS);
continue;
}
if (outFile)
{
if (outFile->Create(path, false))
return true;
}
else
{
if (CreateDir(path))
return true;
}
DWORD error = GetLastError();
if (error != ERROR_FILE_EXISTS &&
error != ERROR_ALREADY_EXISTS)
break;
}
path.Empty();
return false;
}
bool CTempFile::Create(CFSTR prefix, NIO::COutFile *outFile)
{
if (!Remove())
return false;
if (!CreateTempFile(prefix, false, _path, outFile))
return false;
_mustBeDeleted = true;
return true;
}
bool CTempFile::CreateRandomInTempFolder(CFSTR namePrefix, NIO::COutFile *outFile)
{
if (!Remove())
return false;
FString tempPath;
if (!MyGetTempPath(tempPath))
return false;
if (!CreateTempFile(tempPath + namePrefix, true, _path, outFile))
return false;
_mustBeDeleted = true;
return true;
}
bool CTempFile::Remove()
{
if (!_mustBeDeleted)
return true;
_mustBeDeleted = !DeleteFileAlways(_path);
return !_mustBeDeleted;
}
bool CTempFile::MoveTo(CFSTR name, bool deleteDestBefore)
{
if (deleteDestBefore)
if (NFind::DoesFileExist(name))
if (!DeleteFileAlways(name))
return false;
DisableDeleting();
return MyMoveFile(_path, name);
}
bool CTempDir::Create(CFSTR prefix)
{
if (!Remove())
return false;
FString tempPath;
if (!MyGetTempPath(tempPath))
return false;
if (!CreateTempFile(tempPath + prefix, true, _path, NULL))
return false;
_mustBeDeleted = true;
return true;
}
bool CTempDir::Remove()
{
if (!_mustBeDeleted)
return true;
_mustBeDeleted = !RemoveDirWithSubItems(_path);
return !_mustBeDeleted;
}
}}}
|