path-win.cpp@ 68033

Last change on this file since 68033 was 64640, checked in by vboxsync, 8 years ago
IPRT: Implemented native NT version of RTPathQueryInfoEx that provides INode number and link count.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 25.7 KB

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1	/* $Id: path-win.cpp 64640 2016-11-10 15:27:09Z vboxsync $ */
2	/** @file
3	* IPRT - Path manipulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2016 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27
28	/*********************************************************************************************************************************
29	* Header Files *
30	*********************************************************************************************************************************/
31	#define LOG_GROUP RTLOGGROUP_PATH
32	#include <iprt/win/windows.h>
33	#include <iprt/win/shlobj.h>
34
35	#include <iprt/path.h>
36	#include <iprt/assert.h>
37	#include <iprt/string.h>
38	#include <iprt/time.h>
39	#include <iprt/ldr.h>
40	#include <iprt/mem.h>
41	#include <iprt/param.h>
42	#include <iprt/log.h>
43	#include <iprt/err.h>
44	#include "internal/path.h"
45	#include "internal/fs.h"
46
47	/* Needed for lazy loading SHGetFolderPathW in RTPathUserDocuments(). */
48	typedef HRESULT WINAPI FNSHGETFOLDERPATHW(HWND, int, HANDLE, DWORD, LPWSTR);
49	typedef FNSHGETFOLDERPATHW *PFNSHGETFOLDERPATHW;
50
51	/**
52	* Get the real (no symlinks, no . or .. components) path, must exist.
53	*
54	* @returns iprt status code.
55	* @param pszPath The path to resolve.
56	* @param pszRealPath Where to store the real path.
57	* @param cchRealPath Size of the buffer.
58	*/
59	RTDECL(int) RTPathReal(const char pszPath, char pszRealPath, size_t cchRealPath)
60	{
61	/*
62	* Convert to UTF-16, call Win32 APIs, convert back.
63	*/
64	PRTUTF16 pwszPath;
65	int rc = RTStrToUtf16(pszPath, &pwszPath);
66	if (!RT_SUCCESS(rc))
67	return (rc);
68
69	LPWSTR lpFile;
70	WCHAR wsz[RTPATH_MAX];
71	rc = GetFullPathNameW((LPCWSTR)pwszPath, RT_ELEMENTS(wsz), &wsz[0], &lpFile);
72	if (rc > 0 && rc < RT_ELEMENTS(wsz))
73	{
74	/* Check that it exists. (Use RTPathAbs() to just resolve the name.) */
75	DWORD dwAttr = GetFileAttributesW(wsz);
76	if (dwAttr != INVALID_FILE_ATTRIBUTES)
77	rc = RTUtf16ToUtf8Ex((PRTUTF16)&wsz[0], RTSTR_MAX, &pszRealPath, cchRealPath, NULL);
78	else
79	rc = RTErrConvertFromWin32(GetLastError());
80	}
81	else if (rc <= 0)
82	rc = RTErrConvertFromWin32(GetLastError());
83	else
84	rc = VERR_FILENAME_TOO_LONG;
85
86	RTUtf16Free(pwszPath);
87
88	return rc;
89	}
90
91	#if 0
92	/**
93	* Get the absolute path (no symlinks, no . or .. components), doesn't have to exit.
94	*
95	* @returns iprt status code.
96	* @param pszPath The path to resolve.
97	* @param pszAbsPath Where to store the absolute path.
98	* @param cchAbsPath Size of the buffer.
99	*/
100	RTDECL(int) RTPathAbs(const char pszPath, char pszAbsPath, size_t cchAbsPath)
101	{
102	/*
103	* Validation.
104	*/
105	AssertPtr(pszAbsPath);
106	AssertPtr(pszPath);
107	if (RT_UNLIKELY(!*pszPath))
108	return VERR_INVALID_PARAMETER;
109
110	/*
111	* Convert to UTF-16, call Win32 API, convert back.
112	*/
113	LPWSTR pwszPath;
114	int rc = RTStrToUtf16(pszPath, &pwszPath);
115	if (!RT_SUCCESS(rc))
116	return (rc);
117
118	LPWSTR pwszFile; /* Ignored */
119	RTUTF16 wsz[RTPATH_MAX];
120	rc = GetFullPathNameW(pwszPath, RT_ELEMENTS(wsz), &wsz[0], &pwszFile);
121	if (rc > 0 && rc < RT_ELEMENTS(wsz))
122	{
123	size_t cch;
124	rc = RTUtf16ToUtf8Ex(&wsz[0], RTSTR_MAX, &pszAbsPath, cchAbsPath, &cch);
125	if (RT_SUCCESS(rc))
126	{
127	# if 1 /** @todo This code is completely bonkers. */
128	/*
129	* Remove trailing slash if the path may be pointing to a directory.
130	* (See posix variant.)
131	*/
132	if ( cch > 1
133	&& RTPATH_IS_SLASH(pszAbsPath[cch - 1])
134	&& !RTPATH_IS_VOLSEP(pszAbsPath[cch - 2])
135	&& !RTPATH_IS_SLASH(pszAbsPath[cch - 2]))
136	pszAbsPath[cch - 1] = '\0';
137	# endif
138	}
139	}
140	else if (rc <= 0)
141	rc = RTErrConvertFromWin32(GetLastError());
142	else
143	rc = VERR_FILENAME_TOO_LONG;
144
145	RTUtf16Free(pwszPath);
146	return rc;
147	}
148	#endif
149
150
151	/**
152	* Gets the user home directory.
153	*
154	* @returns iprt status code.
155	* @param pszPath Buffer where to store the path.
156	* @param cchPath Buffer size in bytes.
157	*/
158	RTDECL(int) RTPathUserHome(char *pszPath, size_t cchPath)
159	{
160	/*
161	* Validate input
162	*/
163	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
164	AssertReturn(cchPath, VERR_INVALID_PARAMETER);
165
166	RTUTF16 wszPath[RTPATH_MAX];
167	bool fValidFolderPath = false;
168
169	/*
170	* Try with Windows XP+ functionality first.
171	*/
172	RTLDRMOD hShell32;
173	int rc = RTLdrLoadSystem("Shell32.dll", true /fNoUnload/, &hShell32);
174	if (RT_SUCCESS(rc))
175	{
176	PFNSHGETFOLDERPATHW pfnSHGetFolderPathW;
177	rc = RTLdrGetSymbol(hShell32, "SHGetFolderPathW", (void**)&pfnSHGetFolderPathW);
178	if (RT_SUCCESS(rc))
179	{
180	HRESULT hrc = pfnSHGetFolderPathW(0, CSIDL_PROFILE, NULL, SHGFP_TYPE_CURRENT, wszPath);
181	fValidFolderPath = (hrc == S_OK);
182	}
183	RTLdrClose(hShell32);
184	}
185
186	DWORD dwAttr;
187	if ( !fValidFolderPath
188	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
189	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
190	{
191	/*
192	* Fall back to Windows specific environment variables. HOME is not used.
193	*/
194	if ( !GetEnvironmentVariableW(L"USERPROFILE", &wszPath[0], RTPATH_MAX)
195	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
196	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
197	{
198	/* %HOMEDRIVE%%HOMEPATH% */
199	if (!GetEnvironmentVariableW(L"HOMEDRIVE", &wszPath[0], RTPATH_MAX))
200	return VERR_PATH_NOT_FOUND;
201	size_t const cwc = RTUtf16Len(&wszPath[0]);
202	if ( !GetEnvironmentVariableW(L"HOMEPATH", &wszPath[cwc], RTPATH_MAX - (DWORD)cwc)
203	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
204	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
205	return VERR_PATH_NOT_FOUND;
206	}
207	}
208
209	/*
210	* Convert and return.
211	*/
212	return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
213	}
214
215
216	RTDECL(int) RTPathUserDocuments(char *pszPath, size_t cchPath)
217	{
218	/*
219	* Validate input
220	*/
221	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
222	AssertReturn(cchPath, VERR_INVALID_PARAMETER);
223
224	RTLDRMOD hShell32;
225	int rc = RTLdrLoadSystem("Shell32.dll", true /fNoUnload/, &hShell32);
226	if (RT_SUCCESS(rc))
227	{
228	PFNSHGETFOLDERPATHW pfnSHGetFolderPathW;
229	rc = RTLdrGetSymbol(hShell32, "SHGetFolderPathW", (void**)&pfnSHGetFolderPathW);
230	if (RT_SUCCESS(rc))
231	{
232	RTUTF16 wszPath[RTPATH_MAX];
233	HRESULT hrc = pfnSHGetFolderPathW(0, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, wszPath);
234	if ( hrc == S_OK /* Found */
235	\|\| hrc == S_FALSE) /* Found, but doesn't exist */
236	{
237	/*
238	* Convert and return.
239	*/
240	RTLdrClose(hShell32);
241	return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
242	}
243	}
244	RTLdrClose(hShell32);
245	}
246	return VERR_PATH_NOT_FOUND;
247	}
248
249
250	#if 0 /* use nt version of this */
251
252	RTR3DECL(int) RTPathQueryInfo(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
253	{
254	return RTPathQueryInfoEx(pszPath, pObjInfo, enmAdditionalAttribs, RTPATH_F_ON_LINK);
255	}
256	#endif
257	#if 0
258
259
260	RTR3DECL(int) RTPathQueryInfoEx(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs, uint32_t fFlags)
261	{
262	/*
263	* Validate input.
264	*/
265	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
266	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
267	AssertPtrReturn(pObjInfo, VERR_INVALID_POINTER);
268	AssertMsgReturn( enmAdditionalAttribs >= RTFSOBJATTRADD_NOTHING
269	&& enmAdditionalAttribs <= RTFSOBJATTRADD_LAST,
270	("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs),
271	VERR_INVALID_PARAMETER);
272	AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
273
274	/*
275	* Query file info.
276	*/
277	uint32_t uReparseTag = RTFSMODE_SYMLINK_REPARSE_TAG;
278	WIN32_FILE_ATTRIBUTE_DATA Data;
279	PRTUTF16 pwszPath;
280	int rc = RTStrToUtf16(pszPath, &pwszPath);
281	if (RT_FAILURE(rc))
282	return rc;
283	if (!GetFileAttributesExW(pwszPath, GetFileExInfoStandard, &Data))
284	{
285	/* Fallback to FindFileFirst in case of sharing violation. */
286	if (GetLastError() == ERROR_SHARING_VIOLATION)
287	{
288	WIN32_FIND_DATAW FindData;
289	HANDLE hDir = FindFirstFileW(pwszPath, &FindData);
290	if (hDir == INVALID_HANDLE_VALUE)
291	{
292	rc = RTErrConvertFromWin32(GetLastError());
293	RTUtf16Free(pwszPath);
294	return rc;
295	}
296	FindClose(hDir);
297
298	Data.dwFileAttributes = FindData.dwFileAttributes;
299	Data.ftCreationTime = FindData.ftCreationTime;
300	Data.ftLastAccessTime = FindData.ftLastAccessTime;
301	Data.ftLastWriteTime = FindData.ftLastWriteTime;
302	Data.nFileSizeHigh = FindData.nFileSizeHigh;
303	Data.nFileSizeLow = FindData.nFileSizeLow;
304	uReparseTag = FindData.dwReserved0;
305	}
306	else
307	{
308	rc = RTErrConvertFromWin32(GetLastError());
309	RTUtf16Free(pwszPath);
310	return rc;
311	}
312	}
313
314	/*
315	* Getting the information for the link target is a bit annoying and
316	* subject to the same access violation mess as above.. :/
317	*/
318	/** @todo we're too lazy wrt to error paths here... */
319	if ( (Data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
320	&& ((fFlags & RTPATH_F_FOLLOW_LINK) \|\| uReparseTag != RTFSMODE_SYMLINK_REPARSE_TAG))
321	{
322	HANDLE hFinal = CreateFileW(pwszPath,
323	GENERIC_READ,
324	FILE_SHARE_READ \| FILE_SHARE_WRITE \| FILE_SHARE_DELETE,
325	NULL,
326	OPEN_EXISTING,
327	FILE_FLAG_BACKUP_SEMANTICS,
328	NULL);
329	if (hFinal != INVALID_HANDLE_VALUE)
330	{
331	BY_HANDLE_FILE_INFORMATION FileData;
332	if (GetFileInformationByHandle(hFinal, &FileData))
333	{
334	Data.dwFileAttributes = FileData.dwFileAttributes;
335	Data.ftCreationTime = FileData.ftCreationTime;
336	Data.ftLastAccessTime = FileData.ftLastAccessTime;
337	Data.ftLastWriteTime = FileData.ftLastWriteTime;
338	Data.nFileSizeHigh = FileData.nFileSizeHigh;
339	Data.nFileSizeLow = FileData.nFileSizeLow;
340	uReparseTag = 0;
341	}
342	CloseHandle(hFinal);
343	}
344	else if (GetLastError() != ERROR_SHARING_VIOLATION)
345	{
346	rc = RTErrConvertFromWin32(GetLastError());
347	RTUtf16Free(pwszPath);
348	return rc;
349	}
350	}
351
352	RTUtf16Free(pwszPath);
353
354	/*
355	* Setup the returned data.
356	*/
357	pObjInfo->cbObject = ((uint64_t)Data.nFileSizeHigh << 32)
358	\| (uint64_t)Data.nFileSizeLow;
359	pObjInfo->cbAllocated = pObjInfo->cbObject;
360
361	Assert(sizeof(uint64_t) == sizeof(Data.ftCreationTime));
362	RTTimeSpecSetNtTime(&pObjInfo->BirthTime, (uint64_t )&Data.ftCreationTime);
363	RTTimeSpecSetNtTime(&pObjInfo->AccessTime, (uint64_t )&Data.ftLastAccessTime);
364	RTTimeSpecSetNtTime(&pObjInfo->ModificationTime, (uint64_t )&Data.ftLastWriteTime);
365	pObjInfo->ChangeTime = pObjInfo->ModificationTime;
366
367	pObjInfo->Attr.fMode = rtFsModeFromDos((Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT,
368	pszPath, strlen(pszPath), uReparseTag);
369
370	/*
371	* Requested attributes (we cannot provide anything actually).
372	*/
373	switch (enmAdditionalAttribs)
374	{
375	case RTFSOBJATTRADD_NOTHING:
376	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_NOTHING;
377	break;
378
379	case RTFSOBJATTRADD_UNIX:
380	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
381	pObjInfo->Attr.u.Unix.uid = ~0U;
382	pObjInfo->Attr.u.Unix.gid = ~0U;
383	pObjInfo->Attr.u.Unix.cHardlinks = 1;
384	pObjInfo->Attr.u.Unix.INodeIdDevice = 0; /** @todo use volume serial number */
385	pObjInfo->Attr.u.Unix.INodeId = 0; /** @todo use fileid (see GetFileInformationByHandle). */
386	pObjInfo->Attr.u.Unix.fFlags = 0;
387	pObjInfo->Attr.u.Unix.GenerationId = 0;
388	pObjInfo->Attr.u.Unix.Device = 0;
389	break;
390
391	case RTFSOBJATTRADD_UNIX_OWNER:
392	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_OWNER;
393	pObjInfo->Attr.u.UnixOwner.uid = ~0U;
394	pObjInfo->Attr.u.UnixOwner.szName[0] = '\0'; /** @todo return something sensible here. */
395	break;
396
397	case RTFSOBJATTRADD_UNIX_GROUP:
398	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_GROUP;
399	pObjInfo->Attr.u.UnixGroup.gid = ~0U;
400	pObjInfo->Attr.u.UnixGroup.szName[0] = '\0';
401	break;
402
403	case RTFSOBJATTRADD_EASIZE:
404	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
405	pObjInfo->Attr.u.EASize.cb = 0;
406	break;
407
408	default:
409	AssertMsgFailed(("Impossible!\n"));
410	return VERR_INTERNAL_ERROR;
411	}
412
413	return VINF_SUCCESS;
414	}
415
416	#endif /* using NT version*/
417
418
419	RTR3DECL(int) RTPathSetTimes(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
420	PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
421	{
422	return RTPathSetTimesEx(pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, RTPATH_F_ON_LINK);
423	}
424
425
426	RTR3DECL(int) RTPathSetTimesEx(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
427	PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime, uint32_t fFlags)
428	{
429	/*
430	* Validate input.
431	*/
432	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
433	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
434	AssertPtrNullReturn(pAccessTime, VERR_INVALID_POINTER);
435	AssertPtrNullReturn(pModificationTime, VERR_INVALID_POINTER);
436	AssertPtrNullReturn(pChangeTime, VERR_INVALID_POINTER);
437	AssertPtrNullReturn(pBirthTime, VERR_INVALID_POINTER);
438	AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
439
440	/*
441	* Convert the path.
442	*/
443	PRTUTF16 pwszPath;
444	int rc = RTStrToUtf16(pszPath, &pwszPath);
445	if (RT_SUCCESS(rc))
446	{
447	HANDLE hFile;
448	if (fFlags & RTPATH_F_FOLLOW_LINK)
449	hFile = CreateFileW(pwszPath,
450	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
451	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
452	NULL, /* security attribs */
453	OPEN_EXISTING, /* dwCreationDisposition */
454	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL,
455	NULL);
456	else
457	{
458	/** @todo Symlink: Test RTPathSetTimesEx on Windows. (The code is disabled
459	* because it's not tested yet.) */
460	#if 0 //def FILE_FLAG_OPEN_REPARSE_POINT
461	hFile = CreateFileW(pwszPath,
462	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
463	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
464	NULL, /* security attribs */
465	OPEN_EXISTING, /* dwCreationDisposition */
466	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL \| FILE_FLAG_OPEN_REPARSE_POINT,
467	NULL);
468
469	if (hFile == INVALID_HANDLE_VALUE && GetLastError() == ERROR_INVALID_PARAMETER)
470	#endif
471	hFile = CreateFileW(pwszPath,
472	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
473	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
474	NULL, /* security attribs */
475	OPEN_EXISTING, /* dwCreationDisposition */
476	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL,
477	NULL);
478	}
479	if (hFile != INVALID_HANDLE_VALUE)
480	{
481	/*
482	* Check if it's a no-op.
483	*/
484	if (!pAccessTime && !pModificationTime && !pBirthTime)
485	rc = VINF_SUCCESS; /* NOP */
486	else
487	{
488	/*
489	* Convert the input and call the API.
490	*/
491	FILETIME CreationTimeFT;
492	PFILETIME pCreationTimeFT = NULL;
493	if (pBirthTime)
494	pCreationTimeFT = RTTimeSpecGetNtFileTime(pBirthTime, &CreationTimeFT);
495
496	FILETIME LastAccessTimeFT;
497	PFILETIME pLastAccessTimeFT = NULL;
498	if (pAccessTime)
499	pLastAccessTimeFT = RTTimeSpecGetNtFileTime(pAccessTime, &LastAccessTimeFT);
500
501	FILETIME LastWriteTimeFT;
502	PFILETIME pLastWriteTimeFT = NULL;
503	if (pModificationTime)
504	pLastWriteTimeFT = RTTimeSpecGetNtFileTime(pModificationTime, &LastWriteTimeFT);
505
506	if (SetFileTime(hFile, pCreationTimeFT, pLastAccessTimeFT, pLastWriteTimeFT))
507	rc = VINF_SUCCESS;
508	else
509	{
510	DWORD Err = GetLastError();
511	rc = RTErrConvertFromWin32(Err);
512	Log(("RTPathSetTimes('%s', %p, %p, %p, %p): SetFileTime failed with lasterr %d (%Rrc)\n",
513	pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, Err, rc));
514	}
515	}
516	BOOL fRc = CloseHandle(hFile); Assert(fRc); NOREF(fRc);
517	}
518	else
519	{
520	DWORD Err = GetLastError();
521	rc = RTErrConvertFromWin32(Err);
522	Log(("RTPathSetTimes('%s',,,,): failed with %Rrc and lasterr=%u\n", pszPath, rc, Err));
523	}
524
525	RTUtf16Free(pwszPath);
526	}
527
528	LogFlow(("RTPathSetTimes(%p:{%s}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}): return %Rrc\n",
529	pszPath, pszPath, pAccessTime, pAccessTime, pModificationTime, pModificationTime,
530	pChangeTime, pChangeTime, pBirthTime, pBirthTime));
531	return rc;
532	}
533
534
535
536
537	/**
538	* Internal worker for RTFileRename and RTFileMove.
539	*
540	* @returns iprt status code.
541	* @param pszSrc The source filename.
542	* @param pszDst The destination filename.
543	* @param fFlags The windows MoveFileEx flags.
544	* @param fFileType The filetype. We use the RTFMODE filetypes here. If it's 0,
545	* anything goes. If it's RTFS_TYPE_DIRECTORY we'll check that the
546	* source is a directory. If Its RTFS_TYPE_FILE we'll check that it's
547	* not a directory (we are NOT checking whether it's a file).
548	*/
549	DECLHIDDEN(int) rtPathWin32MoveRename(const char pszSrc, const char pszDst, uint32_t fFlags, RTFMODE fFileType)
550	{
551	/*
552	* Convert the strings.
553	*/
554	PRTUTF16 pwszSrc;
555	int rc = RTStrToUtf16(pszSrc, &pwszSrc);
556	if (RT_SUCCESS(rc))
557	{
558	PRTUTF16 pwszDst;
559	rc = RTStrToUtf16(pszDst, &pwszDst);
560	if (RT_SUCCESS(rc))
561	{
562	/*
563	* Check object type if requested.
564	* This is open to race conditions.
565	*/
566	if (fFileType)
567	{
568	DWORD dwAttr = GetFileAttributesW(pwszSrc);
569	if (dwAttr == INVALID_FILE_ATTRIBUTES)
570	rc = RTErrConvertFromWin32(GetLastError());
571	else if (RTFS_IS_DIRECTORY(fFileType))
572	rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VINF_SUCCESS : VERR_NOT_A_DIRECTORY;
573	else
574	rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VERR_IS_A_DIRECTORY : VINF_SUCCESS;
575	}
576	if (RT_SUCCESS(rc))
577	{
578	if (MoveFileExW(pwszSrc, pwszDst, fFlags))
579	rc = VINF_SUCCESS;
580	else
581	{
582	DWORD Err = GetLastError();
583	rc = RTErrConvertFromWin32(Err);
584	Log(("MoveFileExW('%s', '%s', %#x, %RTfmode): fails with rc=%Rrc & lasterr=%d\n",
585	pszSrc, pszDst, fFlags, fFileType, rc, Err));
586	}
587	}
588	RTUtf16Free(pwszDst);
589	}
590	RTUtf16Free(pwszSrc);
591	}
592	return rc;
593	}
594
595
596	RTR3DECL(int) RTPathRename(const char pszSrc, const char pszDst, unsigned fRename)
597	{
598	/*
599	* Validate input.
600	*/
601	AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
602	AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
603	AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
604	AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
605	AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER);
606
607	/*
608	* Call the worker.
609	*/
610	int rc = rtPathWin32MoveRename(pszSrc, pszDst, fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0, 0);
611
612	LogFlow(("RTPathRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n", pszSrc, pszSrc, pszDst, pszDst, fRename, rc));
613	return rc;
614	}
615
616
617	RTR3DECL(int) RTPathUnlink(const char *pszPath, uint32_t fUnlink)
618	{
619	RT_NOREF_PV(pszPath); RT_NOREF_PV(fUnlink);
620	return VERR_NOT_IMPLEMENTED;
621	}
622
623
624	RTDECL(bool) RTPathExists(const char *pszPath)
625	{
626	return RTPathExistsEx(pszPath, RTPATH_F_FOLLOW_LINK);
627	}
628
629
630	RTDECL(bool) RTPathExistsEx(const char *pszPath, uint32_t fFlags)
631	{
632	/*
633	* Validate input.
634	*/
635	AssertPtrReturn(pszPath, false);
636	AssertReturn(*pszPath, false);
637	Assert(RTPATH_F_IS_VALID(fFlags, 0));
638
639	/*
640	* Try query file info.
641	*/
642	DWORD dwAttr;
643	PRTUTF16 pwszPath;
644	int rc = RTStrToUtf16(pszPath, &pwszPath);
645	if (RT_SUCCESS(rc))
646	{
647	dwAttr = GetFileAttributesW(pwszPath);
648	RTUtf16Free(pwszPath);
649	}
650	else
651	dwAttr = INVALID_FILE_ATTRIBUTES;
652	if (dwAttr == INVALID_FILE_ATTRIBUTES)
653	return false;
654
655	#ifdef FILE_ATTRIBUTE_REPARSE_POINT
656	if ( (fFlags & RTPATH_F_FOLLOW_LINK)
657	&& (dwAttr & FILE_ATTRIBUTE_REPARSE_POINT))
658	{
659	AssertFailed();
660	/** @todo Symlinks: RTPathExists+RTPathExistsEx is misbehaving on symbolic
661	* links on Windows. */
662	}
663	#endif
664
665	return true;
666	}
667
668
669	RTDECL(int) RTPathGetCurrent(char *pszPath, size_t cchPath)
670	{
671	int rc;
672
673	/*
674	* GetCurrentDirectory may in some cases omit the drive letter, according
675	* to MSDN, thus the GetFullPathName call.
676	*/
677	RTUTF16 wszCurPath[RTPATH_MAX];
678	if (GetCurrentDirectoryW(RTPATH_MAX, wszCurPath))
679	{
680	RTUTF16 wszFullPath[RTPATH_MAX];
681	if (GetFullPathNameW(wszCurPath, RTPATH_MAX, wszFullPath, NULL))
682	rc = RTUtf16ToUtf8Ex(&wszFullPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
683	else
684	rc = RTErrConvertFromWin32(GetLastError());
685	}
686	else
687	rc = RTErrConvertFromWin32(GetLastError());
688	return rc;
689	}
690
691
692	RTDECL(int) RTPathSetCurrent(const char *pszPath)
693	{
694	/*
695	* Validate input.
696	*/
697	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
698	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
699
700	/*
701	* This interface is almost identical to the Windows API.
702	*/
703	PRTUTF16 pwszPath;
704	int rc = RTStrToUtf16(pszPath, &pwszPath);
705	if (RT_SUCCESS(rc))
706	{
707	/** @todo improve the slash stripping a bit? */
708	size_t cwc = RTUtf16Len(pwszPath);
709	if ( cwc >= 2
710	&& ( pwszPath[cwc - 1] == L'/'
711	\|\| pwszPath[cwc - 1] == L'\\')
712	&& pwszPath[cwc - 2] != ':')
713	pwszPath[cwc - 1] = L'\0';
714
715	if (!SetCurrentDirectoryW(pwszPath))
716	rc = RTErrConvertFromWin32(GetLastError());
717
718	RTUtf16Free(pwszPath);
719	}
720	return rc;
721	}
722
723
724	RTDECL(int) RTPathGetCurrentOnDrive(char chDrive, char *pszPath, size_t cbPath)
725	{
726	WCHAR wszInput[4];
727	wszInput[0] = chDrive;
728	wszInput[1] = ':';
729	wszInput[2] = '\0';
730
731	int rc;
732	RTUTF16 wszFullPath[RTPATH_MAX];
733	if (GetFullPathNameW(wszInput, RTPATH_MAX, wszFullPath, NULL))
734	rc = RTUtf16ToUtf8Ex(&wszFullPath[0], RTSTR_MAX, &pszPath, cbPath, NULL);
735	else
736	rc = RTErrConvertFromWin32(GetLastError());
737	return rc;
738	}
739

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source: vbox/trunk/src/VBox/Runtime/r3/win/path-win.cpp@ 68033

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