/* $Id: path-win.cpp 78184 2019-04-17 20:26:41Z vboxsync $ */ /** @file * IPRT - Path manipulation. */ /* * Copyright (C) 2006-2019 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP RTLOGGROUP_PATH #include #include #include #include #include #include #include #include #include #include #include #include #include #include "internal/path.h" #include "internal/fs.h" /* Needed for lazy loading SHGetFolderPathW in RTPathUserDocuments(). */ typedef HRESULT WINAPI FNSHGETFOLDERPATHW(HWND, int, HANDLE, DWORD, LPWSTR); typedef FNSHGETFOLDERPATHW *PFNSHGETFOLDERPATHW; /** * Get the real (no symlinks, no . or .. components) path, must exist. * * @returns iprt status code. * @param pszPath The path to resolve. * @param pszRealPath Where to store the real path. * @param cchRealPath Size of the buffer. */ RTDECL(int) RTPathReal(const char *pszPath, char *pszRealPath, size_t cchRealPath) { /* * Convert to UTF-16, call Win32 APIs, convert back. */ PRTUTF16 pwszPath; int rc = RTPathWinFromUtf8(&pwszPath, pszPath, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { LPWSTR lpFile; WCHAR wsz[RTPATH_MAX]; rc = GetFullPathNameW((LPCWSTR)pwszPath, RT_ELEMENTS(wsz), &wsz[0], &lpFile); if (rc > 0 && rc < RT_ELEMENTS(wsz)) { /* Check that it exists. (Use RTPathAbs() to just resolve the name.) */ DWORD dwAttr = GetFileAttributesW(wsz); if (dwAttr != INVALID_FILE_ATTRIBUTES) rc = RTUtf16ToUtf8Ex((PRTUTF16)&wsz[0], RTSTR_MAX, &pszRealPath, cchRealPath, NULL); else rc = RTErrConvertFromWin32(GetLastError()); } else if (rc <= 0) rc = RTErrConvertFromWin32(GetLastError()); else rc = VERR_FILENAME_TOO_LONG; RTPathWinFree(pwszPath); } return rc; } #if 0 /** * Get the absolute path (no symlinks, no . or .. components), doesn't have to exit. * * @returns iprt status code. * @param pszPath The path to resolve. * @param pszAbsPath Where to store the absolute path. * @param cchAbsPath Size of the buffer. */ RTDECL(int) RTPathAbs(const char *pszPath, char *pszAbsPath, size_t cchAbsPath) { /* * Validation. */ AssertPtr(pszAbsPath); AssertPtr(pszPath); if (RT_UNLIKELY(!*pszPath)) return VERR_INVALID_PARAMETER; /* * Convert to UTF-16, call Win32 API, convert back. */ LPWSTR pwszPath; int rc = RTStrToUtf16(pszPath, &pwszPath); if (!RT_SUCCESS(rc)) return (rc); LPWSTR pwszFile; /* Ignored */ RTUTF16 wsz[RTPATH_MAX]; rc = GetFullPathNameW(pwszPath, RT_ELEMENTS(wsz), &wsz[0], &pwszFile); if (rc > 0 && rc < RT_ELEMENTS(wsz)) { size_t cch; rc = RTUtf16ToUtf8Ex(&wsz[0], RTSTR_MAX, &pszAbsPath, cchAbsPath, &cch); if (RT_SUCCESS(rc)) { # if 1 /** @todo This code is completely bonkers. */ /* * Remove trailing slash if the path may be pointing to a directory. * (See posix variant.) */ if ( cch > 1 && RTPATH_IS_SLASH(pszAbsPath[cch - 1]) && !RTPATH_IS_VOLSEP(pszAbsPath[cch - 2]) && !RTPATH_IS_SLASH(pszAbsPath[cch - 2])) pszAbsPath[cch - 1] = '\0'; # endif } } else if (rc <= 0) rc = RTErrConvertFromWin32(GetLastError()); else rc = VERR_FILENAME_TOO_LONG; RTUtf16Free(pwszPath); return rc; } #endif /** * Gets the user home directory. * * @returns iprt status code. * @param pszPath Buffer where to store the path. * @param cchPath Buffer size in bytes. */ RTDECL(int) RTPathUserHome(char *pszPath, size_t cchPath) { /* * Validate input */ AssertPtrReturn(pszPath, VERR_INVALID_POINTER); AssertReturn(cchPath, VERR_INVALID_PARAMETER); RTUTF16 wszPath[RTPATH_MAX]; bool fValidFolderPath = false; /* * Try with Windows XP+ functionality first. */ RTLDRMOD hShell32; int rc = RTLdrLoadSystem("Shell32.dll", true /*fNoUnload*/, &hShell32); if (RT_SUCCESS(rc)) { PFNSHGETFOLDERPATHW pfnSHGetFolderPathW; rc = RTLdrGetSymbol(hShell32, "SHGetFolderPathW", (void**)&pfnSHGetFolderPathW); if (RT_SUCCESS(rc)) { HRESULT hrc = pfnSHGetFolderPathW(0, CSIDL_PROFILE, NULL, SHGFP_TYPE_CURRENT, wszPath); fValidFolderPath = (hrc == S_OK); } RTLdrClose(hShell32); } DWORD dwAttr; if ( !fValidFolderPath || (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES || !(dwAttr & FILE_ATTRIBUTE_DIRECTORY)) { /* * Fall back to Windows specific environment variables. HOME is not used. */ if ( !GetEnvironmentVariableW(L"USERPROFILE", &wszPath[0], RTPATH_MAX) || (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES || !(dwAttr & FILE_ATTRIBUTE_DIRECTORY)) { /* %HOMEDRIVE%%HOMEPATH% */ if (!GetEnvironmentVariableW(L"HOMEDRIVE", &wszPath[0], RTPATH_MAX)) return VERR_PATH_NOT_FOUND; size_t const cwc = RTUtf16Len(&wszPath[0]); if ( !GetEnvironmentVariableW(L"HOMEPATH", &wszPath[cwc], RTPATH_MAX - (DWORD)cwc) || (dwAttr = GetFileAttributesW(&wszPath[0])) == INVALID_FILE_ATTRIBUTES || !(dwAttr & FILE_ATTRIBUTE_DIRECTORY)) return VERR_PATH_NOT_FOUND; } } /* * Convert and return. */ return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL); } RTDECL(int) RTPathUserDocuments(char *pszPath, size_t cchPath) { /* * Validate input */ AssertPtrReturn(pszPath, VERR_INVALID_POINTER); AssertReturn(cchPath, VERR_INVALID_PARAMETER); RTLDRMOD hShell32; int rc = RTLdrLoadSystem("Shell32.dll", true /*fNoUnload*/, &hShell32); if (RT_SUCCESS(rc)) { PFNSHGETFOLDERPATHW pfnSHGetFolderPathW; rc = RTLdrGetSymbol(hShell32, "SHGetFolderPathW", (void**)&pfnSHGetFolderPathW); if (RT_SUCCESS(rc)) { RTUTF16 wszPath[RTPATH_MAX]; HRESULT hrc = pfnSHGetFolderPathW(0, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, wszPath); if ( hrc == S_OK /* Found */ || hrc == S_FALSE) /* Found, but doesn't exist */ { /* * Convert and return. */ RTLdrClose(hShell32); return RTUtf16ToUtf8Ex(&wszPath[0], RTSTR_MAX, &pszPath, cchPath, NULL); } } RTLdrClose(hShell32); } return VERR_PATH_NOT_FOUND; } #if 0 /* use nt version of this */ RTR3DECL(int) RTPathQueryInfo(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs) { return RTPathQueryInfoEx(pszPath, pObjInfo, enmAdditionalAttribs, RTPATH_F_ON_LINK); } #endif #if 0 RTR3DECL(int) RTPathQueryInfoEx(const char *pszPath, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs, uint32_t fFlags) { /* * Validate input. */ AssertPtrReturn(pszPath, VERR_INVALID_POINTER); AssertReturn(*pszPath, VERR_INVALID_PARAMETER); AssertPtrReturn(pObjInfo, VERR_INVALID_POINTER); AssertMsgReturn( enmAdditionalAttribs >= RTFSOBJATTRADD_NOTHING && enmAdditionalAttribs <= RTFSOBJATTRADD_LAST, ("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs), VERR_INVALID_PARAMETER); AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER); /* * Query file info. */ uint32_t uReparseTag = RTFSMODE_SYMLINK_REPARSE_TAG; WIN32_FILE_ATTRIBUTE_DATA Data; PRTUTF16 pwszPath; int rc = RTStrToUtf16(pszPath, &pwszPath); if (RT_FAILURE(rc)) return rc; if (!GetFileAttributesExW(pwszPath, GetFileExInfoStandard, &Data)) { /* Fallback to FindFileFirst in case of sharing violation. */ if (GetLastError() == ERROR_SHARING_VIOLATION) { WIN32_FIND_DATAW FindData; HANDLE hDir = FindFirstFileW(pwszPath, &FindData); if (hDir == INVALID_HANDLE_VALUE) { rc = RTErrConvertFromWin32(GetLastError()); RTUtf16Free(pwszPath); return rc; } FindClose(hDir); Data.dwFileAttributes = FindData.dwFileAttributes; Data.ftCreationTime = FindData.ftCreationTime; Data.ftLastAccessTime = FindData.ftLastAccessTime; Data.ftLastWriteTime = FindData.ftLastWriteTime; Data.nFileSizeHigh = FindData.nFileSizeHigh; Data.nFileSizeLow = FindData.nFileSizeLow; uReparseTag = FindData.dwReserved0; } else { rc = RTErrConvertFromWin32(GetLastError()); RTUtf16Free(pwszPath); return rc; } } /* * Getting the information for the link target is a bit annoying and * subject to the same access violation mess as above.. :/ */ /** @todo we're too lazy wrt to error paths here... */ if ( (Data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) && ((fFlags & RTPATH_F_FOLLOW_LINK) || uReparseTag != RTFSMODE_SYMLINK_REPARSE_TAG)) { HANDLE hFinal = CreateFileW(pwszPath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); if (hFinal != INVALID_HANDLE_VALUE) { BY_HANDLE_FILE_INFORMATION FileData; if (GetFileInformationByHandle(hFinal, &FileData)) { Data.dwFileAttributes = FileData.dwFileAttributes; Data.ftCreationTime = FileData.ftCreationTime; Data.ftLastAccessTime = FileData.ftLastAccessTime; Data.ftLastWriteTime = FileData.ftLastWriteTime; Data.nFileSizeHigh = FileData.nFileSizeHigh; Data.nFileSizeLow = FileData.nFileSizeLow; uReparseTag = 0; } CloseHandle(hFinal); } else if (GetLastError() != ERROR_SHARING_VIOLATION) { rc = RTErrConvertFromWin32(GetLastError()); RTUtf16Free(pwszPath); return rc; } } RTUtf16Free(pwszPath); /* * Setup the returned data. */ pObjInfo->cbObject = ((uint64_t)Data.nFileSizeHigh << 32) | (uint64_t)Data.nFileSizeLow; pObjInfo->cbAllocated = pObjInfo->cbObject; Assert(sizeof(uint64_t) == sizeof(Data.ftCreationTime)); RTTimeSpecSetNtTime(&pObjInfo->BirthTime, *(uint64_t *)&Data.ftCreationTime); RTTimeSpecSetNtTime(&pObjInfo->AccessTime, *(uint64_t *)&Data.ftLastAccessTime); RTTimeSpecSetNtTime(&pObjInfo->ModificationTime, *(uint64_t *)&Data.ftLastWriteTime); pObjInfo->ChangeTime = pObjInfo->ModificationTime; pObjInfo->Attr.fMode = rtFsModeFromDos((Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT, pszPath, strlen(pszPath), uReparseTag); /* * Requested attributes (we cannot provide anything actually). */ switch (enmAdditionalAttribs) { case RTFSOBJATTRADD_NOTHING: pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_NOTHING; break; case RTFSOBJATTRADD_UNIX: pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX; pObjInfo->Attr.u.Unix.uid = ~0U; pObjInfo->Attr.u.Unix.gid = ~0U; pObjInfo->Attr.u.Unix.cHardlinks = 1; pObjInfo->Attr.u.Unix.INodeIdDevice = 0; /** @todo use volume serial number */ pObjInfo->Attr.u.Unix.INodeId = 0; /** @todo use fileid (see GetFileInformationByHandle). */ pObjInfo->Attr.u.Unix.fFlags = 0; pObjInfo->Attr.u.Unix.GenerationId = 0; pObjInfo->Attr.u.Unix.Device = 0; break; case RTFSOBJATTRADD_UNIX_OWNER: pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_OWNER; pObjInfo->Attr.u.UnixOwner.uid = ~0U; pObjInfo->Attr.u.UnixOwner.szName[0] = '\0'; /** @todo return something sensible here. */ break; case RTFSOBJATTRADD_UNIX_GROUP: pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX_GROUP; pObjInfo->Attr.u.UnixGroup.gid = ~0U; pObjInfo->Attr.u.UnixGroup.szName[0] = '\0'; break; case RTFSOBJATTRADD_EASIZE: pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE; pObjInfo->Attr.u.EASize.cb = 0; break; default: AssertMsgFailed(("Impossible!\n")); return VERR_INTERNAL_ERROR; } return VINF_SUCCESS; } #endif /* using NT version*/ RTR3DECL(int) RTPathSetTimes(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime, PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime) { return RTPathSetTimesEx(pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, RTPATH_F_ON_LINK); } RTR3DECL(int) RTPathSetTimesEx(const char *pszPath, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime, PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime, uint32_t fFlags) { /* * Validate input. */ AssertPtrReturn(pszPath, VERR_INVALID_POINTER); AssertReturn(*pszPath, VERR_INVALID_PARAMETER); AssertPtrNullReturn(pAccessTime, VERR_INVALID_POINTER); AssertPtrNullReturn(pModificationTime, VERR_INVALID_POINTER); AssertPtrNullReturn(pChangeTime, VERR_INVALID_POINTER); AssertPtrNullReturn(pBirthTime, VERR_INVALID_POINTER); AssertMsgReturn(RTPATH_F_IS_VALID(fFlags, 0), ("%#x\n", fFlags), VERR_INVALID_PARAMETER); /* * Convert the path. */ PRTUTF16 pwszPath; int rc = RTPathWinFromUtf8(&pwszPath, pszPath, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { HANDLE hFile; if (fFlags & RTPATH_F_FOLLOW_LINK) hFile = CreateFileW(pwszPath, FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */ FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, /* dwShareMode */ NULL, /* security attribs */ OPEN_EXISTING, /* dwCreationDisposition */ FILE_FLAG_BACKUP_SEMANTICS | FILE_ATTRIBUTE_NORMAL, NULL); else { /** @todo Symlink: Test RTPathSetTimesEx on Windows. (The code is disabled * because it's not tested yet.) */ #if 0 //def FILE_FLAG_OPEN_REPARSE_POINT hFile = CreateFileW(pwszPath, FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */ FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, /* dwShareMode */ NULL, /* security attribs */ OPEN_EXISTING, /* dwCreationDisposition */ FILE_FLAG_BACKUP_SEMANTICS | FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OPEN_REPARSE_POINT, NULL); if (hFile == INVALID_HANDLE_VALUE && GetLastError() == ERROR_INVALID_PARAMETER) #endif hFile = CreateFileW(pwszPath, FILE_WRITE_ATTRIBUTES, /* dwDesiredAccess */ FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, /* dwShareMode */ NULL, /* security attribs */ OPEN_EXISTING, /* dwCreationDisposition */ FILE_FLAG_BACKUP_SEMANTICS | FILE_ATTRIBUTE_NORMAL, NULL); } if (hFile != INVALID_HANDLE_VALUE) { /* * Check if it's a no-op. */ if (!pAccessTime && !pModificationTime && !pBirthTime) rc = VINF_SUCCESS; /* NOP */ else { /* * Convert the input and call the API. */ FILETIME CreationTimeFT; PFILETIME pCreationTimeFT = NULL; if (pBirthTime) pCreationTimeFT = RTTimeSpecGetNtFileTime(pBirthTime, &CreationTimeFT); FILETIME LastAccessTimeFT; PFILETIME pLastAccessTimeFT = NULL; if (pAccessTime) pLastAccessTimeFT = RTTimeSpecGetNtFileTime(pAccessTime, &LastAccessTimeFT); FILETIME LastWriteTimeFT; PFILETIME pLastWriteTimeFT = NULL; if (pModificationTime) pLastWriteTimeFT = RTTimeSpecGetNtFileTime(pModificationTime, &LastWriteTimeFT); if (SetFileTime(hFile, pCreationTimeFT, pLastAccessTimeFT, pLastWriteTimeFT)) rc = VINF_SUCCESS; else { DWORD Err = GetLastError(); rc = RTErrConvertFromWin32(Err); Log(("RTPathSetTimes('%s', %p, %p, %p, %p): SetFileTime failed with lasterr %d (%Rrc)\n", pszPath, pAccessTime, pModificationTime, pChangeTime, pBirthTime, Err, rc)); } } BOOL fRc = CloseHandle(hFile); Assert(fRc); NOREF(fRc); } else { DWORD Err = GetLastError(); rc = RTErrConvertFromWin32(Err); Log(("RTPathSetTimes('%s',,,,): failed with %Rrc and lasterr=%u\n", pszPath, rc, Err)); } RTPathWinFree(pwszPath); } LogFlow(("RTPathSetTimes(%p:{%s}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}, %p:{%RDtimespec}): return %Rrc\n", pszPath, pszPath, pAccessTime, pAccessTime, pModificationTime, pModificationTime, pChangeTime, pChangeTime, pBirthTime, pBirthTime)); return rc; } /** * Internal worker for RTFileRename and RTFileMove. * * @returns iprt status code. * @param pszSrc The source filename. * @param pszDst The destination filename. * @param fFlags The windows MoveFileEx flags. * @param fFileType The filetype. We use the RTFMODE filetypes here. If it's 0, * anything goes. If it's RTFS_TYPE_DIRECTORY we'll check that the * source is a directory. If Its RTFS_TYPE_FILE we'll check that it's * not a directory (we are NOT checking whether it's a file). */ DECLHIDDEN(int) rtPathWin32MoveRename(const char *pszSrc, const char *pszDst, uint32_t fFlags, RTFMODE fFileType) { /* * Convert the strings. */ PRTUTF16 pwszSrc; int rc = RTPathWinFromUtf8(&pwszSrc, pszSrc, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { PRTUTF16 pwszDst; rc = RTPathWinFromUtf8(&pwszDst, pszDst, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { /* * Check object type if requested. * This is open to race conditions. */ if (fFileType) { DWORD dwAttr = GetFileAttributesW(pwszSrc); if (dwAttr == INVALID_FILE_ATTRIBUTES) rc = RTErrConvertFromWin32(GetLastError()); else if (RTFS_IS_DIRECTORY(fFileType)) rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VINF_SUCCESS : VERR_NOT_A_DIRECTORY; else rc = dwAttr & FILE_ATTRIBUTE_DIRECTORY ? VERR_IS_A_DIRECTORY : VINF_SUCCESS; } if (RT_SUCCESS(rc)) { if (MoveFileExW(pwszSrc, pwszDst, fFlags)) rc = VINF_SUCCESS; else { DWORD Err = GetLastError(); rc = RTErrConvertFromWin32(Err); Log(("MoveFileExW('%s', '%s', %#x, %RTfmode): fails with rc=%Rrc & lasterr=%d\n", pszSrc, pszDst, fFlags, fFileType, rc, Err)); } } RTPathWinFree(pwszDst); } RTPathWinFree(pwszSrc); } return rc; } RTR3DECL(int) RTPathRename(const char *pszSrc, const char *pszDst, unsigned fRename) { /* * Validate input. */ AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER); AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER); AssertMsgReturn(*pszSrc, ("%p\n", pszSrc), VERR_INVALID_PARAMETER); AssertMsgReturn(*pszDst, ("%p\n", pszDst), VERR_INVALID_PARAMETER); AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER); /* * Call the worker. */ int rc = rtPathWin32MoveRename(pszSrc, pszDst, fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0, 0); LogFlow(("RTPathRename(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n", pszSrc, pszSrc, pszDst, pszDst, fRename, rc)); return rc; } RTR3DECL(int) RTPathUnlink(const char *pszPath, uint32_t fUnlink) { RT_NOREF_PV(pszPath); RT_NOREF_PV(fUnlink); return VERR_NOT_IMPLEMENTED; } RTDECL(bool) RTPathExists(const char *pszPath) { return RTPathExistsEx(pszPath, RTPATH_F_FOLLOW_LINK); } RTDECL(bool) RTPathExistsEx(const char *pszPath, uint32_t fFlags) { /* * Validate input. */ AssertPtrReturn(pszPath, false); AssertReturn(*pszPath, false); Assert(RTPATH_F_IS_VALID(fFlags, 0)); /* * Try query file info. */ DWORD dwAttr; PRTUTF16 pwszPath; int rc = RTPathWinFromUtf8(&pwszPath, pszPath, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { dwAttr = GetFileAttributesW(pwszPath); RTPathWinFree(pwszPath); } else dwAttr = INVALID_FILE_ATTRIBUTES; if (dwAttr == INVALID_FILE_ATTRIBUTES) return false; #ifdef FILE_ATTRIBUTE_REPARSE_POINT if ( (fFlags & RTPATH_F_FOLLOW_LINK) && (dwAttr & FILE_ATTRIBUTE_REPARSE_POINT)) { AssertFailed(); /** @todo Symlinks: RTPathExists+RTPathExistsEx is misbehaving on symbolic * links on Windows. */ } #endif return true; } RTDECL(int) RTPathGetCurrent(char *pszPath, size_t cchPath) { int rc; if (cchPath > 0) { /* * GetCurrentDirectory may in some cases omit the drive letter, according * to MSDN, thus the GetFullPathName call. */ RTUTF16 wszCurPath[RTPATH_MAX]; if (GetCurrentDirectoryW(RTPATH_MAX, wszCurPath)) { RTUTF16 wszFullPath[RTPATH_MAX]; if (GetFullPathNameW(wszCurPath, RTPATH_MAX, wszFullPath, NULL)) { if ( wszFullPath[1] == ':' && RT_C_IS_LOWER(wszFullPath[0])) wszFullPath[0] = RT_C_TO_UPPER(wszFullPath[0]); rc = RTUtf16ToUtf8Ex(&wszFullPath[0], RTSTR_MAX, &pszPath, cchPath, NULL); } else rc = RTErrConvertFromWin32(GetLastError()); } else rc = RTErrConvertFromWin32(GetLastError()); } else rc = VERR_BUFFER_OVERFLOW; return rc; } RTDECL(int) RTPathSetCurrent(const char *pszPath) { /* * Validate input. */ AssertPtrReturn(pszPath, VERR_INVALID_POINTER); AssertReturn(*pszPath, VERR_INVALID_PARAMETER); /* * This interface is almost identical to the Windows API. */ PRTUTF16 pwszPath; int rc = RTPathWinFromUtf8(&pwszPath, pszPath, 0 /*fFlags*/); if (RT_SUCCESS(rc)) { /** @todo improve the slash stripping a bit? */ size_t cwc = RTUtf16Len(pwszPath); if ( cwc >= 2 && ( pwszPath[cwc - 1] == L'/' || pwszPath[cwc - 1] == L'\\') && pwszPath[cwc - 2] != ':') pwszPath[cwc - 1] = L'\0'; if (!SetCurrentDirectoryW(pwszPath)) rc = RTErrConvertFromWin32(GetLastError()); RTPathWinFree(pwszPath); } return rc; } RTDECL(int) RTPathGetCurrentOnDrive(char chDrive, char *pszPath, size_t cbPath) { int rc; if (cbPath > 0) { WCHAR wszInput[4]; wszInput[0] = chDrive; wszInput[1] = ':'; wszInput[2] = '\0'; RTUTF16 wszFullPath[RTPATH_MAX]; if (GetFullPathNameW(wszInput, RTPATH_MAX, wszFullPath, NULL)) rc = RTUtf16ToUtf8Ex(&wszFullPath[0], RTSTR_MAX, &pszPath, cbPath, NULL); else rc = RTErrConvertFromWin32(GetLastError()); } else rc = VERR_BUFFER_OVERFLOW; return rc; }