path-win.cpp@ 36613

Last change on this file since 36613 was 36613, checked in by vboxsync, 14 years ago
iprt: try to fix win burn
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1	/* $Id: path-win.cpp 36613 2011-04-07 10:38:30Z vboxsync $ */
2	/** @file
3	* IPRT - Path manipulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. 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 <Windows.h>
33	#include <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/mem.h>
40	#include <iprt/param.h>
41	#include <iprt/log.h>
42	#include <iprt/err.h>
43	#include "internal/path.h"
44	#include "internal/fs.h"
45
46
47	/**
48	* Get the real (no symlinks, no . or .. components) path, must exist.
49	*
50	* @returns iprt status code.
51	* @param pszPath The path to resolve.
52	* @param pszRealPath Where to store the real path.
53	* @param cchRealPath Size of the buffer.
54	*/
55	RTDECL(int) RTPathReal(const char pszPath, char pszRealPath, size_t cchRealPath)
56	{
57	/*
58	* Convert to UTF-16, call Win32 APIs, convert back.
59	*/
60	PRTUTF16 pwszPath;
61	int rc = RTStrToUtf16(pszPath, &pwszPath);
62	if (!RT_SUCCESS(rc))
63	return (rc);
64
65	LPWSTR lpFile;
66	WCHAR wsz[RTPATH_MAX];
67	rc = GetFullPathNameW((LPCWSTR)pwszPath, RT_ELEMENTS(wsz), &wsz[0], &lpFile);
68	if (rc > 0 && rc < RT_ELEMENTS(wsz))
69	{
70	/* Check that it exists. (Use RTPathAbs() to just resolve the name.) */
71	DWORD dwAttr = GetFileAttributesW(wsz);
72	if (dwAttr != INVALID_FILE_ATTRIBUTES)
73	rc = RTUtf16ToUtf8Ex((PRTUTF16)&wsz[0], RTSTR_MAX, &pszRealPath, cchRealPath, NULL);
74	else
75	rc = RTErrConvertFromWin32(GetLastError());
76	}
77	else if (rc <= 0)
78	rc = RTErrConvertFromWin32(GetLastError());
79	else
80	rc = VERR_FILENAME_TOO_LONG;
81
82	RTUtf16Free(pwszPath);
83
84	return rc;
85	}
86
87
88	/**
89	* Get the absolute path (no symlinks, no . or .. components), doesn't have to exit.
90	*
91	* @returns iprt status code.
92	* @param pszPath The path to resolve.
93	* @param pszAbsPath Where to store the absolute path.
94	* @param cchAbsPath Size of the buffer.
95	*/
96	RTDECL(int) RTPathAbs(const char pszPath, char pszAbsPath, size_t cchAbsPath)
97	{
98	/*
99	* Validation.
100	*/
101	AssertPtr(pszAbsPath);
102	AssertPtr(pszPath);
103	if (RT_UNLIKELY(!*pszPath))
104	return VERR_INVALID_PARAMETER;
105
106	/*
107	* Convert to UTF-16, call Win32 API, convert back.
108	*/
109	LPWSTR pwszPath;
110	int rc = RTStrToUtf16(pszPath, &pwszPath);
111	if (!RT_SUCCESS(rc))
112	return (rc);
113
114	LPWSTR pwszFile; /* Ignored */
115	RTUTF16 wsz[RTPATH_MAX];
116	rc = GetFullPathNameW(pwszPath, RT_ELEMENTS(wsz), &wsz[0], &pwszFile);
117	if (rc > 0 && rc < RT_ELEMENTS(wsz))
118	{
119	size_t cch;
120	rc = RTUtf16ToUtf8Ex(&wsz[0], RTSTR_MAX, &pszAbsPath, cchAbsPath, &cch);
121	if (RT_SUCCESS(rc))
122	{
123	/*
124	* Remove trailing slash if the path may be pointing to a directory.
125	* (See posix variant.)
126	*/
127	if ( cch > 1
128	&& RTPATH_IS_SLASH(pszAbsPath[cch - 1])
129	&& !RTPATH_IS_VOLSEP(pszAbsPath[cch - 2])
130	&& !RTPATH_IS_SLASH(pszAbsPath[cch - 2]))
131	pszAbsPath[cch - 1] = '\0';
132	}
133	}
134	else if (rc <= 0)
135	rc = RTErrConvertFromWin32(GetLastError());
136	else
137	rc = VERR_FILENAME_TOO_LONG;
138
139	RTUtf16Free(pwszPath);
140	return rc;
141	}
142
143
144	/**
145	* Gets the user home directory.
146	*
147	* @returns iprt status code.
148	* @param pszPath Buffer where to store the path.
149	* @param cchPath Buffer size in bytes.
150	*/
151	RTDECL(int) RTPathUserHome(char *pszPath, size_t cchPath)
152	{
153	RTUTF16 wszPath[RTPATH_MAX];
154	DWORD dwAttr;
155
156	/*
157	* There are multiple definitions for what WE think of as user home...
158	*/
159	if ( !GetEnvironmentVariableW(L"HOME", &wszPath[0], RTPATH_MAX)
160	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
161	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
162	{
163	if ( !GetEnvironmentVariableW(L"USERPROFILE", &wszPath[0], RTPATH_MAX)
164	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
165	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
166	{
167	/* %HOMEDRIVE%%HOMEPATH% */
168	if (!GetEnvironmentVariableW(L"HOMEDRIVE", &wszPath[0], RTPATH_MAX))
169	return VERR_PATH_NOT_FOUND;
170	size_t const cwc = RTUtf16Len(&wszPath[0]);
171	if ( !GetEnvironmentVariableW(L"HOMEPATH", &wszPath[cwc], RTPATH_MAX - (DWORD)cwc)
172	\|\| (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES
173	\|\| !(dwAttr & FILE_ATTRIBUTE_DIRECTORY))
174	return VERR_PATH_NOT_FOUND;
175	}
176	}
177
178	/*
179	* Convert and return.
180	*/
181	return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
182	}
183
184	RTDECL(int) RTPathUserDocuments(char *pszPath, size_t cchPath)
185	{
186	/*
187	* Validate input
188	*/
189	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
190	AssertReturn(cchPath, VERR_INVALID_PARAMETER);
191
192	RTUTF16 wszPath[RTPATH_MAX];
193	HRESULT rc = SHGetFolderPath(0, CSIDL_MYDOCUMENTS, NULL, SHGFP_TYPE_CURRENT, wszPath);
194	if ( rc == S_OK /* Found */
195	\|\| rc == S_FALSE) /* Found, but doesn't exists */
196	/*
197	* Convert and return.
198	*/
199	return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
200
201	return VERR_PATH_NOT_FOUND;
202	}
203
204
205	RTR3DECL(int) RTPathQueryInfo(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
206	{
207	return RTPathQueryInfoEx(pszPath, pObjInfo, enmAdditionalAttribs, RTPATH_F_ON_LINK);
208	}
209
210
211	RTR3DECL(int) RTPathQueryInfoEx(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs, uint32_t fFlags)
212	{
213	/*
214	* Validate input.
215	*/
216	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
217	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
218	AssertPtrReturn(pObjInfo, VERR_INVALID_POINTER);
219	AssertMsgReturn( enmAdditionalAttribs >= RTFSOBJATTRADD_NOTHING
220	&& enmAdditionalAttribs <= RTFSOBJATTRADD_LAST,
221	("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs),
222	VERR_INVALID_PARAMETER);
223	AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
224
225	/*
226	* Query file info.
227	*/
228	WIN32_FILE_ATTRIBUTE_DATA Data;
229	PRTUTF16 pwszPath;
230	int rc = RTStrToUtf16(pszPath, &pwszPath);
231	if (RT_FAILURE(rc))
232	return rc;
233	if (!GetFileAttributesExW(pwszPath, GetFileExInfoStandard, &Data))
234	{
235	/* Fallback to FindFileFirst in case of sharing violation. */
236	if (GetLastError() == ERROR_SHARING_VIOLATION)
237	{
238	WIN32_FIND_DATAW FindData;
239	HANDLE hDir = FindFirstFileW(pwszPath, &FindData);
240	if (hDir == INVALID_HANDLE_VALUE)
241	{
242	rc = RTErrConvertFromWin32(GetLastError());
243	RTUtf16Free(pwszPath);
244	return rc;
245	}
246	FindClose(hDir);
247
248	Data.dwFileAttributes = FindData.dwFileAttributes;
249	Data.ftCreationTime = FindData.ftCreationTime;
250	Data.ftLastAccessTime = FindData.ftLastAccessTime;
251	Data.ftLastWriteTime = FindData.ftLastWriteTime;
252	Data.nFileSizeHigh = FindData.nFileSizeHigh;
253	Data.nFileSizeLow = FindData.nFileSizeLow;
254	}
255	else
256	{
257	rc = RTErrConvertFromWin32(GetLastError());
258	RTUtf16Free(pwszPath);
259	return rc;
260	}
261	}
262
263	/*
264	* Getting the information for the link target is a bit annoying and
265	* subject to the same access violation mess as above.. :/
266	*/
267	/** @todo we're too lazy wrt to error paths here... */
268	if ( (fFlags & RTPATH_F_FOLLOW_LINK)
269	&& (Data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT))
270	{
271	HANDLE hFinal = CreateFileW(pwszPath,
272	GENERIC_READ,
273	FILE_SHARE_READ \| FILE_SHARE_WRITE \| FILE_SHARE_DELETE,
274	NULL,
275	OPEN_EXISTING,
276	FILE_FLAG_BACKUP_SEMANTICS,
277	NULL);
278	if (hFinal != INVALID_HANDLE_VALUE)
279	{
280	BY_HANDLE_FILE_INFORMATION FileData;
281	if (GetFileInformationByHandle(hFinal, &FileData))
282	{
283	Data.dwFileAttributes = FileData.dwFileAttributes;
284	Data.ftCreationTime = FileData.ftCreationTime;
285	Data.ftLastAccessTime = FileData.ftLastAccessTime;
286	Data.ftLastWriteTime = FileData.ftLastWriteTime;
287	Data.nFileSizeHigh = FileData.nFileSizeHigh;
288	Data.nFileSizeLow = FileData.nFileSizeLow;
289	}
290	CloseHandle(hFinal);
291	}
292	else if (GetLastError() != ERROR_SHARING_VIOLATION)
293	{
294	rc = RTErrConvertFromWin32(GetLastError());
295	RTUtf16Free(pwszPath);
296	return rc;
297	}
298	}
299
300	RTUtf16Free(pwszPath);
301
302	/*
303	* Setup the returned data.
304	*/
305	pObjInfo->cbObject = ((uint64_t)Data.nFileSizeHigh << 32)
306	\| (uint64_t)Data.nFileSizeLow;
307	pObjInfo->cbAllocated = pObjInfo->cbObject;
308
309	Assert(sizeof(uint64_t) == sizeof(Data.ftCreationTime));
310	RTTimeSpecSetNtTime(&pObjInfo->BirthTime, (uint64_t )&Data.ftCreationTime);
311	RTTimeSpecSetNtTime(&pObjInfo->AccessTime, (uint64_t )&Data.ftLastAccessTime);
312	RTTimeSpecSetNtTime(&pObjInfo->ModificationTime, (uint64_t )&Data.ftLastWriteTime);
313	pObjInfo->ChangeTime = pObjInfo->ModificationTime;
314
315	pObjInfo->Attr.fMode = rtFsModeFromDos((Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT,
316	pszPath, strlen(pszPath));
317
318	/*
319	* Requested attributes (we cannot provide anything actually).
320	*/
321	switch (enmAdditionalAttribs)
322	{
323	case RTFSOBJATTRADD_NOTHING:
324	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_NOTHING;
325	break;
326
327	case RTFSOBJATTRADD_UNIX:
328	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
329	pObjInfo->Attr.u.Unix.uid = ~0U;
330	pObjInfo->Attr.u.Unix.gid = ~0U;
331	pObjInfo->Attr.u.Unix.cHardlinks = 1;
332	pObjInfo->Attr.u.Unix.INodeIdDevice = 0; /** @todo use volume serial number */
333	pObjInfo->Attr.u.Unix.INodeId = 0; /** @todo use fileid (see GetFileInformationByHandle). */
334	pObjInfo->Attr.u.Unix.fFlags = 0;
335	pObjInfo->Attr.u.Unix.GenerationId = 0;
336	pObjInfo->Attr.u.Unix.Device = 0;
337	break;
338
339	case RTFSOBJATTRADD_UNIX_OWNER:
340	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_OWNER;
341	pObjInfo->Attr.u.UnixOwner.uid = ~0U;
342	pObjInfo->Attr.u.UnixOwner.szName[0] = '\0'; /** @todo return something sensible here. */
343	break;
344
345	case RTFSOBJATTRADD_UNIX_GROUP:
346	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_GROUP;
347	pObjInfo->Attr.u.UnixGroup.gid = ~0U;
348	pObjInfo->Attr.u.UnixGroup.szName[0] = '\0';
349	break;
350
351	case RTFSOBJATTRADD_EASIZE:
352	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
353	pObjInfo->Attr.u.EASize.cb = 0;
354	break;
355
356	default:
357	AssertMsgFailed(("Impossible!\n"));
358	return VERR_INTERNAL_ERROR;
359	}
360
361	return VINF_SUCCESS;
362	}
363
364
365	RTR3DECL(int) RTPathSetTimes(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
366	PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
367	{
368	return RTPathSetTimesEx(pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, RTPATH_F_ON_LINK);
369	}
370
371
372	RTR3DECL(int) RTPathSetTimesEx(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
373	PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime, uint32_t fFlags)
374	{
375	/*
376	* Validate input.
377	*/
378	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
379	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
380	AssertPtrNullReturn(pAccessTime, VERR_INVALID_POINTER);
381	AssertPtrNullReturn(pModificationTime, VERR_INVALID_POINTER);
382	AssertPtrNullReturn(pChangeTime, VERR_INVALID_POINTER);
383	AssertPtrNullReturn(pBirthTime, VERR_INVALID_POINTER);
384	AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
385
386	/*
387	* Convert the path.
388	*/
389	PRTUTF16 pwszPath;
390	int rc = RTStrToUtf16(pszPath, &pwszPath);
391	if (RT_SUCCESS(rc))
392	{
393	HANDLE hFile;
394	if (fFlags & RTPATH_F_FOLLOW_LINK)
395	hFile = CreateFileW(pwszPath,
396	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
397	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
398	NULL, /* security attribs */
399	OPEN_EXISTING, /* dwCreationDisposition */
400	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL,
401	NULL);
402	else
403	{
404	/** @todo Symlink: Test RTPathSetTimesEx on Windows. (The code is disabled
405	* because it's not tested yet.) */
406	#if 0 //def FILE_FLAG_OPEN_REPARSE_POINT
407	hFile = CreateFileW(pwszPath,
408	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
409	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
410	NULL, /* security attribs */
411	OPEN_EXISTING, /* dwCreationDisposition */
412	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL \| FILE_FLAG_OPEN_REPARSE_POINT,
413	NULL);
414
415	if (hFile == INVALID_HANDLE_VALUE && GetLastError() == ERROR_INVALID_PARAMETER)
416	#endif
417	hFile = CreateFileW(pwszPath,
418	FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */
419	FILE_SHARE_WRITE \| FILE_SHARE_READ \| FILE_SHARE_DELETE, /* dwShareMode */
420	NULL, /* security attribs */
421	OPEN_EXISTING, /* dwCreationDisposition */
422	FILE_FLAG_BACKUP_SEMANTICS \| FILE_ATTRIBUTE_NORMAL,
423	NULL);
424	}
425	if (hFile != INVALID_HANDLE_VALUE)
426	{
427	/*
428	* Check if it's a no-op.
429	*/
430	if (!pAccessTime && !pModificationTime && !pBirthTime)
431	rc = VINF_SUCCESS; /* NOP */
432	else
433	{
434	/*
435	* Convert the input and call the API.
436	*/
437	FILETIME CreationTimeFT;
438	PFILETIME pCreationTimeFT = NULL;
439	if (pBirthTime)
440	pCreationTimeFT = RTTimeSpecGetNtFileTime(pBirthTime, &CreationTimeFT);
441
442	FILETIME LastAccessTimeFT;
443	PFILETIME pLastAccessTimeFT = NULL;
444	if (pAccessTime)
445	pLastAccessTimeFT = RTTimeSpecGetNtFileTime(pAccessTime, &LastAccessTimeFT);
446
447	FILETIME LastWriteTimeFT;
448	PFILETIME pLastWriteTimeFT = NULL;
449	if (pModificationTime)
450	pLastWriteTimeFT = RTTimeSpecGetNtFileTime(pModificationTime, &LastWriteTimeFT);
451
452	if (SetFileTime(hFile, pCreationTimeFT, pLastAccessTimeFT, pLastWriteTimeFT))
453	rc = VINF_SUCCESS;
454	else
455	{
456	DWORD Err = GetLastError();
457	rc = RTErrConvertFromWin32(Err);
458	Log(("RTPathSetTimes('%s', %p, %p, %p, %p): SetFileTime failed with lasterr %d (%Rrc)\n",
459	pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, Err, rc));
460	}
461	}
462	BOOL fRc = CloseHandle(hFile); Assert(fRc); NOREF(fRc);
463	}
464	else
465	{
466	DWORD Err = GetLastError();
467	rc = RTErrConvertFromWin32(Err);
468	Log(("RTPathSetTimes('%s',,,,): failed with %Rrc and lasterr=%u\n", pszPath, rc, Err));
469	}
470
471	RTUtf16Free(pwszPath);
472	}
473
474	LogFlow(("RTPathSetTimes(%p:{%s}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}): return %Rrc\n",
475	pszPath, pszPath, pAccessTime, pAccessTime, pModificationTime, pModificationTime,
476	pChangeTime, pChangeTime, pBirthTime, pBirthTime));
477	return rc;
478	}
479
480
481
482
483	/**
484	* Internal worker for RTFileRename and RTFileMove.
485	*
486	* @returns iprt status code.
487	* @param pszSrc The source filename.
488	* @param pszDst The destination filename.
489	* @param fFlags The windows MoveFileEx flags.
490	* @param fFileType The filetype. We use the RTFMODE filetypes here. If it's 0,
491	* anything goes. If it's RTFS_TYPE_DIRECTORY we'll check that the
492	* source is a directory. If Its RTFS_TYPE_FILE we'll check that it's
493	* not a directory (we are NOT checking whether it's a file).
494	*/
495	DECLHIDDEN(int) rtPathWin32MoveRename(const char pszSrc, const char pszDst, uint32_t fFlags, RTFMODE fFileType)
496	{
497	/*
498	* Convert the strings.
499	*/
500	PRTUTF16 pwszSrc;
501	int rc = RTStrToUtf16(pszSrc, &pwszSrc);
502	if (RT_SUCCESS(rc))
503	{
504	PRTUTF16 pwszDst;
505	rc = RTStrToUtf16(pszDst, &pwszDst);
506	if (RT_SUCCESS(rc))
507	{
508	/*
509	* Check object type if requested.
510	* This is open to race conditions.
511	*/
512	if (fFileType)
513	{
514	DWORD dwAttr = GetFileAttributesW(pwszSrc);
515	if (dwAttr == INVALID_FILE_ATTRIBUTES)
516	rc = RTErrConvertFromWin32(GetLastError());
517	else if (RTFS_IS_DIRECTORY(fFileType))
518	rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VINF_SUCCESS : VERR_NOT_A_DIRECTORY;
519	else
520	rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VERR_IS_A_DIRECTORY : VINF_SUCCESS;
521	}
522	if (RT_SUCCESS(rc))
523	{
524	if (MoveFileExW(pwszSrc, pwszDst, fFlags))
525	rc = VINF_SUCCESS;
526	else
527	{
528	DWORD Err = GetLastError();
529	rc = RTErrConvertFromWin32(Err);
530	Log(("MoveFileExW('%s', '%s', %#x, %RTfmode): fails with rc=%Rrc & lasterr=%d\n",
531	pszSrc, pszDst, fFlags, fFileType, rc, Err));
532	}
533	}
534	RTUtf16Free(pwszDst);
535	}
536	RTUtf16Free(pwszSrc);
537	}
538	return rc;
539	}
540
541
542	RTR3DECL(int) RTPathRename(const char pszSrc, const char pszDst, unsigned fRename)
543	{
544	/*
545	* Validate input.
546	*/
547	AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
548	AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
549	AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
550	AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
551	AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER);
552
553	/*
554	* Call the worker.
555	*/
556	int rc = rtPathWin32MoveRename(pszSrc, pszDst, fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0, 0);
557
558	LogFlow(("RTPathRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n", pszSrc, pszSrc, pszDst, pszDst, fRename, rc));
559	return rc;
560	}
561
562
563	RTDECL(bool) RTPathExists(const char *pszPath)
564	{
565	return RTPathExistsEx(pszPath, RTPATH_F_FOLLOW_LINK);
566	}
567
568
569	RTDECL(bool) RTPathExistsEx(const char *pszPath, uint32_t fFlags)
570	{
571	/*
572	* Validate input.
573	*/
574	AssertPtrReturn(pszPath, false);
575	AssertReturn(*pszPath, false);
576	Assert(RTPATH_F_IS_VALID(fFlags, 0));
577
578	/*
579	* Try query file info.
580	*/
581	DWORD dwAttr;
582	PRTUTF16 pwszPath;
583	int rc = RTStrToUtf16(pszPath, &pwszPath);
584	if (RT_SUCCESS(rc))
585	{
586	dwAttr = GetFileAttributesW(pwszPath);
587	RTUtf16Free(pwszPath);
588	}
589	else
590	dwAttr = INVALID_FILE_ATTRIBUTES;
591	if (dwAttr == INVALID_FILE_ATTRIBUTES)
592	return false;
593
594	#ifdef FILE_ATTRIBUTE_REPARSE_POINT
595	if ( (fFlags & RTPATH_F_FOLLOW_LINK)
596	&& (dwAttr & FILE_ATTRIBUTE_REPARSE_POINT))
597	{
598	AssertFailed();
599	/** @todo Symlinks: RTPathExists+RTPathExistsEx is misbehaving on symbolic
600	* links on Windows. */
601	}
602	#endif
603
604	return true;
605	}
606
607
608	RTDECL(int) RTPathGetCurrent(char *pszPath, size_t cchPath)
609	{
610	int rc;
611
612	/*
613	* GetCurrentDirectory may in some cases omit the drive letter, according
614	* to MSDN, thus the GetFullPathName call.
615	*/
616	RTUTF16 wszCurPath[RTPATH_MAX];
617	if (GetCurrentDirectoryW(RTPATH_MAX, wszCurPath))
618	{
619	RTUTF16 wszFullPath[RTPATH_MAX];
620	if (GetFullPathNameW(wszCurPath, RTPATH_MAX, wszFullPath, NULL))
621	rc = RTUtf16ToUtf8Ex(&wszFullPath[0], RTSTR_MAX, &pszPath, cchPath, NULL);
622	else
623	rc = RTErrConvertFromWin32(GetLastError());
624	}
625	else
626	rc = RTErrConvertFromWin32(GetLastError());
627	return rc;
628	}
629
630
631	RTDECL(int) RTPathSetCurrent(const char *pszPath)
632	{
633	/*
634	* Validate input.
635	*/
636	AssertPtrReturn(pszPath, VERR_INVALID_POINTER);
637	AssertReturn(*pszPath, VERR_INVALID_PARAMETER);
638
639	/*
640	* This interface is almost identical to the Windows API.
641	*/
642	PRTUTF16 pwszPath;
643	int rc = RTStrToUtf16(pszPath, &pwszPath);
644	if (RT_SUCCESS(rc))
645	{
646	/** @todo improve the slash stripping a bit? */
647	size_t cwc = RTUtf16Len(pwszPath);
648	if ( cwc >= 2
649	&& ( pwszPath[cwc - 1] == L'/'
650	\|\| pwszPath[cwc - 1] == L'\\')
651	&& pwszPath[cwc - 2] != ':')
652	pwszPath[cwc - 1] = L'\0';
653
654	if (!SetCurrentDirectoryW(pwszPath))
655	rc = RTErrConvertFromWin32(GetLastError());
656
657	RTUtf16Free(pwszPath);
658	}
659	return rc;
660	}
661

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source: vbox/trunk/src/VBox/Runtime/r3/win/path-win.cpp@ 36613

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