dir-win32.cpp@ 1

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1	/* $Id: dir-win32.cpp 1 1970-01-01 00:00:00Z vboxsync $ */
2	/** @file
3	* InnoTek Portable Runtime - Directory, win32.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP RTLOGGROUP_DIR
27	#include <Windows.h>
28
29	#include <iprt/dir.h>
30	#include <iprt/path.h>
31	#include <iprt/alloc.h>
32	#include <iprt/string.h>
33	#include <iprt/assert.h>
34	#include <iprt/param.h>
35	#include <iprt/err.h>
36	#include <iprt/file.h>
37	#include <iprt/log.h>
38	#include "internal/fs.h"
39	#include "internal/path.h"
40	#include "internal/dir.h"
41
42
43
44	RTDECL(bool) RTDirExists(const char *pszPath)
45	{
46	bool fRc = false;
47
48	/*
49	* Convert to UCS2.
50	*/
51	PRTUCS2 pucszString;
52	int rc = RTStrUtf8ToUcs2(&pucszString, pszPath);
53	AssertRC(rc);
54	if (RT_SUCCESS(rc))
55	{
56	/*
57	* Query and check attributes.
58	*/
59	DWORD dwAttr = GetFileAttributesW((LPCWSTR)pucszString);
60	fRc = dwAttr != INVALID_FILE_ATTRIBUTES
61	&& (dwAttr & FILE_ATTRIBUTE_DIRECTORY);
62
63	RTStrUcs2Free(pucszString);
64	}
65
66	LogFlow(("RTDirExists(%p:{%s}): returns %RTbool\n", pszPath, pszPath, fRc));
67	return fRc;
68	}
69
70
71	RTDECL(int) RTDirCreate(const char *pszPath, RTFMODE fMode)
72	{
73	/*
74	* Validate the file mode.
75	*/
76	int rc;
77	fMode = rtFsModeNormalize(fMode, pszPath, 0);
78	if (rtFsModeIsValidPermissions(fMode))
79	{
80	/*
81	* Convert to UCS2.
82	*/
83	PRTUCS2 pucszString;
84	rc = RTStrUtf8ToUcs2(&pucszString, pszPath);
85	AssertRC(rc);
86	if (RT_SUCCESS(rc))
87	{
88	/*
89	* Create the directory.
90	*/
91	if (CreateDirectoryW((LPCWSTR)pucszString, NULL))
92	rc = VINF_SUCCESS;
93	else
94	rc = RTErrConvertFromWin32(GetLastError());
95
96	RTStrUcs2Free(pucszString);
97	}
98	}
99	else
100	{
101	AssertMsgFailed(("Invalid file mode! %RTfmode\n", fMode));
102	rc = VERR_INVALID_FMODE;
103	}
104
105	LogFlow(("RTDirCreate(%p:{%s}, %RTfmode): returns %Rrc\n", pszPath, pszPath, fMode, rc));
106	return rc;
107	}
108
109
110	RTDECL(int) RTDirRemove(const char *pszPath)
111	{
112	/*
113	* Convert to UCS2.
114	*/
115	PRTUCS2 pucszString;
116	int rc = RTStrUtf8ToUcs2(&pucszString, pszPath);
117	AssertRC(rc);
118	if (RT_SUCCESS(rc))
119	{
120	/*
121	* Remove the directory.
122	*/
123	if (RemoveDirectoryW((LPCWSTR)pucszString))
124	rc = VINF_SUCCESS;
125	else
126	rc = RTErrConvertFromWin32(GetLastError());
127
128	RTStrUcs2Free(pucszString);
129	}
130
131	LogFlow(("RTDirRemove(%p:{%s}): returns %Rrc\n", pszPath, pszPath, rc));
132	return rc;
133	}
134
135
136	int rtOpenDirNative(PRTDIR pDir, char *pszPathBuf)
137	{
138	/*
139	* Setup the search expression.
140	*
141	* pszPathBuf is pointing to the return 4K return buffer for the RTPathReal()
142	* call in rtDirOpenCommon(), so all we gota do is check that we don't overflow
143	* it when adding the wildcard expression.
144	*/
145	size_t cchExpr;
146	const char *pszExpr;
147	if (pDir->enmFilter == RTDIRFILTER_WINNT)
148	{
149	pszExpr = pDir->pszFilter;
150	cchExpr = pDir->cchFilter + 1;
151	}
152	else
153	{
154	pszExpr = "*";
155	cchExpr = sizeof("*");
156	}
157	if (pDir->cchPath + cchExpr > RTPATH_MAX)
158	return VERR_FILENAME_TOO_LONG;
159	memcpy(pszPathBuf + pDir->cchPath, pszExpr, cchExpr);
160
161
162	/*
163	* Attempt opening the search.
164	*/
165	int rc = VINF_SUCCESS;
166	#ifndef RT_DONT_CONVERT_FILENAMES
167	PRTUCS2 puszName;
168	rc = RTStrUtf8ToUcs2(&puszName, pszPathBuf);
169	if (RT_SUCCESS(rc))
170	{
171	pDir->hDir = FindFirstFileW((LPCWSTR)puszName, &pDir->Data);
172	#else
173	pDir->hDir = FindFirstFileA(pszPathBuf, &pDir->Data);
174	#endif
175	if (pDir->hDir != INVALID_HANDLE_VALUE)
176	pDir->fDataUnread = true;
177	/* theoretical case of an empty directory. */
178	else if (GetLastError() == ERROR_NO_MORE_FILES)
179	pDir->fDataUnread = false;
180	else
181	rc = RTErrConvertFromWin32(GetLastError());
182	#ifndef RT_DONT_CONVERT_FILENAMES
183	RTStrUcs2Free(puszName);
184	}
185	#endif
186
187	return rc;
188	}
189
190
191	RTDECL(int) RTDirClose(PRTDIR pDir)
192	{
193	/*
194	* Validate input.
195	*/
196	if (!pDir)
197	return VERR_INVALID_PARAMETER;
198	if (pDir->u32Magic != RTDIR_MAGIC)
199	{
200	AssertMsgFailed(("Invalid pDir=%p\n", pDir));
201	return VERR_INVALID_PARAMETER;
202	}
203
204	/*
205	* Close the handle.
206	*/
207	pDir->u32Magic++;
208	if (pDir->hDir != INVALID_HANDLE_VALUE)
209	{
210	BOOL fRc = FindClose(pDir->hDir);
211	Assert(fRc);
212	pDir->hDir = INVALID_HANDLE_VALUE;
213	}
214	RTStrFree(pDir->pszName);
215	pDir->pszName = NULL;
216	RTMemFree(pDir);
217
218	return VINF_SUCCESS;
219	}
220
221
222	RTDECL(int) RTDirRead(PRTDIR pDir, PRTDIRENTRY pDirEntry, unsigned *pcbDirEntry)
223	{
224	/*
225	* Validate input.
226	*/
227	if (!pDir \|\| pDir->u32Magic != RTDIR_MAGIC)
228	{
229	AssertMsgFailed(("Invalid pDir=%p\n", pDir));
230	return VERR_INVALID_PARAMETER;
231	}
232	if (!pDirEntry)
233	{
234	AssertMsgFailed(("Invalid pDirEntry=%p\n", pDirEntry));
235	return VERR_INVALID_PARAMETER;
236	}
237	unsigned cbDirEntry = sizeof(*pDirEntry);
238	if (pcbDirEntry)
239	{
240	cbDirEntry = *pcbDirEntry;
241	if (cbDirEntry < (unsigned)RT_OFFSETOF(RTDIRENTRY, szName[2]))
242	{
243	AssertMsgFailed(("Invalid pcbDirEntry=%d (min %d)\n", pcbDirEntry, RT_OFFSETOF(RTDIRENTRY, szName[2])));
244	return VERR_INVALID_PARAMETER;
245	}
246	}
247
248	/*
249	* Fetch data?
250	*/
251	if (!pDir->fDataUnread)
252	{
253	#ifdef RT_DONT_CONVERT_FILENAMES
254	BOOL fRc = FindNextFileA(pDir->hDir, &pDir->Data);
255
256	#else
257	RTStrFree(pDir->pszName);
258	pDir->pszName = NULL;
259
260	BOOL fRc = FindNextFileW(pDir->hDir, &pDir->Data);
261	#endif
262	if (!fRc)
263	{
264	int iErr = GetLastError();
265	if (pDir->hDir == INVALID_HANDLE_VALUE \|\| iErr == ERROR_NO_MORE_FILES)
266	return VERR_NO_MORE_FILES;
267	return RTErrConvertFromWin32(iErr);
268	}
269	}
270
271	#ifndef RT_DONT_CONVERT_FILENAMES
272	/*
273	* Convert the filename to UTF-8.
274	*/
275	if (!pDir->pszName)
276	{
277	int rc = RTUtf16ToUtf8((PCRTUTF16)pDir->Data.cFileName, &pDir->pszName);
278	if (RT_FAILURE(rc))
279	{
280	pDir->pszName = NULL;
281	return rc;
282	}
283	pDir->cchName = strlen(pDir->pszName);
284	}
285	#endif
286
287	/*
288	* Check if we've got enough space to return the data.
289	*/
290	#ifdef RT_DONT_CONVERT_FILENAMES
291	const char *pszName = pDir->Data.cName;
292	const size_t cchName = strlen(pszName);
293	#else
294	const char *pszName = pDir->pszName;
295	const size_t cchName = pDir->cchName;
296	#endif
297	const size_t cbRequired = RT_OFFSETOF(RTDIRENTRY, szName[1]) + cchName;
298	if (pcbDirEntry)
299	*pcbDirEntry = cbRequired;
300	if (cbRequired > cbDirEntry)
301	return VERR_BUFFER_OVERFLOW;
302
303	/*
304	* Setup the returned data.
305	*/
306	pDir->fDataUnread = false;
307	pDirEntry->INodeId = 0;
308	pDirEntry->enmType = pDir->Data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
309	? RTDIRENTRYTYPE_DIRECTORY : RTDIRENTRYTYPE_FILE;
310	pDirEntry->cbName = (uint16_t)cchName;
311	Assert(pDirEntry->cbName == cchName);
312	memcpy(pDirEntry->szName, pszName, cchName + 1);
313
314	return VINF_SUCCESS;
315	}
316
317
318	RTDECL(int) RTDirReadEx(PRTDIR pDir, PRTDIRENTRYEX pDirEntry, unsigned *pcbDirEntry, RTFSOBJATTRADD enmAdditionalAttribs)
319	{
320	/*
321	* Validate input.
322	*/
323	if (!pDir \|\| pDir->u32Magic != RTDIR_MAGIC)
324	{
325	AssertMsgFailed(("Invalid pDir=%p\n", pDir));
326	return VERR_INVALID_PARAMETER;
327	}
328	if (!pDirEntry)
329	{
330	AssertMsgFailed(("Invalid pDirEntry=%p\n", pDirEntry));
331	return VERR_INVALID_PARAMETER;
332	}
333	if ( enmAdditionalAttribs < RTFSOBJATTRADD_NOTHING
334	\|\| enmAdditionalAttribs > RTFSOBJATTRADD_LAST)
335	{
336	AssertMsgFailed(("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs));
337	return VERR_INVALID_PARAMETER;
338	}
339	unsigned cbDirEntry = sizeof(*pDirEntry);
340	if (pcbDirEntry)
341	{
342	cbDirEntry = *pcbDirEntry;
343	if (cbDirEntry < (unsigned)RT_OFFSETOF(RTDIRENTRYEX, szName[2]))
344	{
345	AssertMsgFailed(("Invalid pcbDirEntry=%d (min %d)\n", pcbDirEntry, RT_OFFSETOF(RTDIRENTRYEX, szName[2])));
346	return VERR_INVALID_PARAMETER;
347	}
348	}
349
350	/*
351	* Fetch data?
352	*/
353	if (!pDir->fDataUnread)
354	{
355	#ifdef RT_DONT_CONVERT_FILENAMES
356	BOOL fRc = FindNextFileA(pDir->hDir, &pDir->Data);
357
358	#else
359	RTStrFree(pDir->pszName);
360	pDir->pszName = NULL;
361
362	BOOL fRc = FindNextFileW(pDir->hDir, &pDir->Data);
363	#endif
364	if (!fRc)
365	{
366	int iErr = GetLastError();
367	if (pDir->hDir == INVALID_HANDLE_VALUE \|\| iErr == ERROR_NO_MORE_FILES)
368	return VERR_NO_MORE_FILES;
369	return RTErrConvertFromWin32(iErr);
370	}
371	}
372
373	#ifndef RT_DONT_CONVERT_FILENAMES
374	/*
375	* Convert the filename to UTF-8.
376	*/
377	if (!pDir->pszName)
378	{
379	int rc = RTUtf16ToUtf8((PCRTUTF16)pDir->Data.cFileName, &pDir->pszName);
380	if (RT_FAILURE(rc))
381	{
382	pDir->pszName = NULL;
383	return rc;
384	}
385	pDir->cchName = strlen(pDir->pszName);
386	}
387	#endif
388
389	/*
390	* Check if we've got enough space to return the data.
391	*/
392	#ifdef RT_DONT_CONVERT_FILENAMES
393	const char *pszName = pDir->Data.cName;
394	const size_t cchName = strlen(pszName);
395	#else
396	const char *pszName = pDir->pszName;
397	const size_t cchName = pDir->cchName;
398	#endif
399	const size_t cbRequired = RT_OFFSETOF(RTDIRENTRYEX, szName[1]) + cchName;
400	if (pcbDirEntry)
401	*pcbDirEntry = cbRequired;
402	if (cbRequired > cbDirEntry)
403	return VERR_BUFFER_OVERFLOW;
404
405	/*
406	* Setup the returned data.
407	*/
408	pDir->fDataUnread = false;
409	pDirEntry->cbName = (uint16_t)cchName;
410	Assert(pDirEntry->cbName == cchName);
411	memcpy(pDirEntry->szName, pszName, cchName + 1);
412	#ifndef RT_DONT_CONVERT_FILENAMES /* this ain't nice since the whole point of this define is not to drag in conversion... */
413	if (pDir->Data.cAlternateFileName[0])
414	{
415	/* copy and calc length */
416	PCRTUCS2 pucSrc = (PCRTUCS2)pDir->Data.cAlternateFileName;
417	PRTUCS2 pucDst = pDirEntry->uszShortName;
418	while (*pucSrc)
419	pucDst++ = pucSrc++;
420	pDirEntry->cucShortName = pucDst - &pDirEntry->uszShortName[0];
421	/* zero the rest */
422	const PRTUCS2 pucEnd = &pDirEntry->uszShortName[ELEMENTS(pDirEntry->uszShortName)];
423	while (pucDst < pucEnd)
424	*pucDst++ = '\0';
425	}
426	else
427	#endif
428	{
429	memset(pDirEntry->uszShortName, 0, sizeof(pDirEntry->uszShortName));
430	pDirEntry->cucShortName = 0;
431	}
432
433	pDirEntry->Info.cbObject = ((uint64_t)pDir->Data.nFileSizeHigh << 32)
434	\| (uint64_t)pDir->Data.nFileSizeLow;
435	pDirEntry->Info.cbAllocated = pDirEntry->Info.cbObject;
436
437	Assert(sizeof(uint64_t) == sizeof(pDir->Data.ftCreationTime));
438	RTTimeSpecSetNtTime(&pDirEntry->Info.BirthTime, (uint64_t )&pDir->Data.ftCreationTime);
439	RTTimeSpecSetNtTime(&pDirEntry->Info.AccessTime, (uint64_t )&pDir->Data.ftLastAccessTime);
440	RTTimeSpecSetNtTime(&pDirEntry->Info.ModificationTime, (uint64_t )&pDir->Data.ftLastWriteTime);
441	pDirEntry->Info.ChangeTime = pDirEntry->Info.ModificationTime;
442
443	pDirEntry->Info.Attr.fMode = rtFsModeFromDos((pDir->Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT,
444	pszName, cchName);
445
446	/*
447	* Requested attributes (we cannot provide anything actually).
448	*/
449	switch (enmAdditionalAttribs)
450	{
451	case RTFSOBJATTRADD_EASIZE:
452	pDirEntry->Info.Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
453	pDirEntry->Info.Attr.u.EASize.cb = 0;
454	break;
455
456	case RTFSOBJATTRADD_UNIX:
457	pDirEntry->Info.Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
458	pDirEntry->Info.Attr.u.Unix.uid = ~0U;
459	pDirEntry->Info.Attr.u.Unix.gid = ~0U;
460	pDirEntry->Info.Attr.u.Unix.cHardlinks = 1;
461	pDirEntry->Info.Attr.u.Unix.INodeIdDevice = 0;
462	pDirEntry->Info.Attr.u.Unix.INodeId = 0;
463	pDirEntry->Info.Attr.u.Unix.fFlags = 0;
464	pDirEntry->Info.Attr.u.Unix.GenerationId = 0;
465	pDirEntry->Info.Attr.u.Unix.Device = 0;
466	break;
467
468	case RTFSOBJATTRADD_NOTHING:
469	pDirEntry->Info.Attr.enmAdditional = RTFSOBJATTRADD_NOTHING;
470	break;
471
472	default:
473	AssertMsgFailed(("Impossible!\n"));
474	return VERR_INTERNAL_ERROR;
475	}
476
477	return VINF_SUCCESS;
478	}
479
480
481	RTDECL(int) RTDirRename(const char pszSrc, const char pszDst, unsigned fRename)
482	{
483	/*
484	* Validate input.
485	*/
486	AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
487	AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
488	AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER);
489	AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER);
490	AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER);
491
492	/*
493	* Call the worker.
494	*/
495	int rc = rtPathWin32MoveRename(pszSrc, pszDst,
496	fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0,
497	RTFS_TYPE_DIRECTORY);
498
499	LogFlow(("RTDirRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n", pszSrc, pszSrc, pszDst, pszDst, fRename, rc));
500	return rc;
501	}
502

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source: vbox/trunk/src/VBox/Runtime/r3/win32/dir-win32.cpp@ 1

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