char *
tr_sys_path_resolve (const char * path,
tr_error ** error)
{
char * ret = NULL;
wchar_t * wide_path;
wchar_t * wide_ret = NULL;
HANDLE handle;
DWORD wide_ret_size;
assert (path != NULL);
wide_path = tr_win32_utf8_to_native (path, -1);
if (wide_path == NULL)
goto fail;
handle = CreateFileW (wide_path, FILE_READ_EA,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (handle == INVALID_HANDLE_VALUE)
goto fail;
wide_ret_size = GetFinalPathNameByHandleW (handle, NULL, 0, 0);
if (wide_ret_size == 0)
goto fail;
wide_ret = tr_new (wchar_t, wide_ret_size);
if (GetFinalPathNameByHandleW (handle, wide_ret, wide_ret_size, 0) != wide_ret_size - 1)
goto fail;
/* Resolved path always begins with "\\?\", so skip those first four chars. */
ret = tr_win32_native_to_utf8 (wide_ret + 4, -1);
if (ret != NULL)
goto cleanup;
fail:
set_system_error (error, GetLastError ());
tr_free (ret);
ret = NULL;
cleanup:
tr_free (wide_ret);
tr_free (wide_path);
if (handle != INVALID_HANDLE_VALUE)
CloseHandle (handle);
return ret;
}
/* Convert an utf-8 file name to NT file name, return converted name length in characters, no NULL terminator is appended */
static int filename_to_nt_pathname(const char *filename, WCHAR *buf, int buf_size)
{
HANDLE basedir_handle = CreateFileW(L".", 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (basedir_handle == INVALID_HANDLE_VALUE)
return 0;
WCHAR basedir[PATH_MAX];
DWORD basedir_len = GetFinalPathNameByHandleW(basedir_handle, basedir, PATH_MAX, FILE_NAME_NORMALIZED);
CloseHandle(basedir_handle);
if (basedir_len > PATH_MAX)
return 0;
basedir[1] = L'?';
if (buf_size < basedir_len)
return 0;
memcpy(buf, basedir, basedir_len * sizeof(WCHAR));
buf += basedir_len;
int out_size = basedir_len;
buf_size -= basedir_len;
if (filename[0] == 0)
return out_size;
if (buf_size < 1)
return 0;
*buf++ = L'\\';
out_size++;
buf_size--;
int fl = utf8_to_utf16_filename(filename, strlen(filename), buf, buf_size);
if (fl == 0)
return 0;
return out_size + fl;
}
static posix_errno_t internal_read_link(const efile_path_t *path, efile_path_t *result) {
DWORD required_length, actual_length;
HANDLE link_handle;
DWORD last_error;
link_handle = CreateFileW((WCHAR*)path->data, GENERIC_READ,
FILE_SHARE_FLAGS, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
last_error = GetLastError();
if(link_handle == INVALID_HANDLE_VALUE) {
return windows_to_posix_errno(last_error);
}
required_length = GetFinalPathNameByHandleW(link_handle, NULL, 0, 0);
last_error = GetLastError();
if(required_length <= 0) {
CloseHandle(link_handle);
return windows_to_posix_errno(last_error);
}
/* Unlike many other path functions (eg. GetFullPathNameW), this one
* includes the NUL terminator in its required length. */
if(!enif_alloc_binary(required_length * sizeof(WCHAR), result)) {
CloseHandle(link_handle);
return ENOMEM;
}
actual_length = GetFinalPathNameByHandleW(link_handle,
(WCHAR*)result->data, required_length, 0);
last_error = GetLastError();
CloseHandle(link_handle);
if(actual_length == 0 || actual_length >= required_length) {
enif_release_binary(result);
return windows_to_posix_errno(last_error);
}
/* GetFinalPathNameByHandle always prepends with "\\?\" and NUL-terminates,
* so we never have to touch-up the resulting path. */
ASSERT_PATH_FORMAT(result);
return 0;
}
/*
* @implemented
*/
DWORD
WINAPI
GetFinalPathNameByHandleA(IN HANDLE hFile,
OUT LPSTR lpszFilePath,
IN DWORD cchFilePath,
IN DWORD dwFlags)
{
WCHAR FilePathW[MAX_PATH];
UNICODE_STRING FilePathU;
DWORD PrevLastError;
DWORD Ret = 0;
if (cchFilePath != 0 &&
cchFilePath > sizeof(FilePathW) / sizeof(FilePathW[0]))
{
FilePathU.Length = 0;
FilePathU.MaximumLength = (USHORT)cchFilePath * sizeof(WCHAR);
FilePathU.Buffer = RtlAllocateHeap(RtlGetProcessHeap(),
0,
FilePathU.MaximumLength);
if (FilePathU.Buffer == NULL)
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return 0;
}
}
else
{
FilePathU.Length = 0;
FilePathU.MaximumLength = sizeof(FilePathW);
FilePathU.Buffer = FilePathW;
}
/* save the last error code */
PrevLastError = GetLastError();
SetLastError(ERROR_SUCCESS);
/* call the unicode version that does all the work */
Ret = GetFinalPathNameByHandleW(hFile,
FilePathU.Buffer,
cchFilePath,
dwFlags);
if (GetLastError() == ERROR_SUCCESS)
{
/* no error, restore the last error code and convert the string */
SetLastError(PrevLastError);
Ret = FilenameU2A_FitOrFail(lpszFilePath,
cchFilePath,
&FilePathU);
}
/* free allocated memory if necessary */
if (FilePathU.Buffer != FilePathW)
{
RtlFreeHeap(RtlGetProcessHeap(),
0,
FilePathU.Buffer);
}
return Ret;
}
static int
_g_win32_stat_utf16_no_trailing_slashes (const gunichar2 *filename,
int fd,
GWin32PrivateStat *buf,
gboolean for_symlink)
{
HANDLE file_handle;
gboolean succeeded_so_far;
DWORD error_code;
struct __stat64 statbuf;
BY_HANDLE_FILE_INFORMATION handle_info;
FILE_STANDARD_INFO std_info;
WIN32_FIND_DATAW finddata;
DWORD immediate_attributes;
gboolean is_symlink = FALSE;
gboolean is_directory;
DWORD open_flags;
wchar_t *filename_target = NULL;
int result;
if (fd < 0)
{
immediate_attributes = GetFileAttributesW (filename);
if (immediate_attributes == INVALID_FILE_ATTRIBUTES)
{
error_code = GetLastError ();
errno = w32_error_to_errno (error_code);
return -1;
}
is_symlink = (immediate_attributes & FILE_ATTRIBUTE_REPARSE_POINT) == FILE_ATTRIBUTE_REPARSE_POINT;
is_directory = (immediate_attributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY;
open_flags = FILE_ATTRIBUTE_NORMAL;
if (for_symlink && is_symlink)
open_flags |= FILE_FLAG_OPEN_REPARSE_POINT;
if (is_directory)
open_flags |= FILE_FLAG_BACKUP_SEMANTICS;
file_handle = CreateFileW (filename, FILE_READ_ATTRIBUTES,
FILE_SHARE_READ, NULL, OPEN_EXISTING,
open_flags,
NULL);
if (file_handle == INVALID_HANDLE_VALUE)
{
error_code = GetLastError ();
errno = w32_error_to_errno (error_code);
return -1;
}
}
else
{
file_handle = (HANDLE) _get_osfhandle (fd);
if (file_handle == INVALID_HANDLE_VALUE)
return -1;
}
succeeded_so_far = GetFileInformationByHandle (file_handle,
&handle_info);
error_code = GetLastError ();
if (succeeded_so_far)
{
succeeded_so_far = GetFileInformationByHandleEx (file_handle,
FileStandardInfo,
&std_info,
sizeof (std_info));
error_code = GetLastError ();
}
if (!succeeded_so_far)
{
if (fd < 0)
CloseHandle (file_handle);
errno = w32_error_to_errno (error_code);
return -1;
}
/* It's tempting to use GetFileInformationByHandleEx(FileAttributeTagInfo),
* but it always reports that the ReparseTag is 0.
*/
if (fd < 0)
{
memset (&finddata, 0, sizeof (finddata));
if (handle_info.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
{
HANDLE tmp = FindFirstFileW (filename,
&finddata);
if (tmp == INVALID_HANDLE_VALUE)
{
error_code = GetLastError ();
errno = w32_error_to_errno (error_code);
CloseHandle (file_handle);
return -1;
}
FindClose (tmp);
}
if (is_symlink && !for_symlink)
{
/* If filename is a symlink, but we need the target.
* To get information about the target we need to resolve
* the symlink first.
*/
DWORD filename_target_len;
DWORD new_len;
/* Just in case, give it a real memory location instead of NULL */
new_len = GetFinalPathNameByHandleW (file_handle,
(wchar_t *) &filename_target_len,
0,
FILE_NAME_NORMALIZED);
#define SANE_LIMIT 1024 * 10
if (new_len >= SANE_LIMIT)
#undef SANE_LIMIT
{
new_len = 0;
error_code = ERROR_BUFFER_OVERFLOW;
}
else if (new_len == 0)
{
error_code = GetLastError ();
}
if (new_len > 0)
{
/* Pretend that new_len doesn't count the terminating NUL char,
* and ask for a bit more space than is needed, and allocate even more.
*/
filename_target_len = new_len + 3;
filename_target = g_malloc ((filename_target_len + 1) * sizeof (wchar_t));
new_len = GetFinalPathNameByHandleW (file_handle,
filename_target,
filename_target_len,
FILE_NAME_NORMALIZED);
/* filename_target_len is already larger than needed,
* new_len should be smaller than that, even if the size
* is off by 1 for some reason.
*/
if (new_len >= filename_target_len - 1)
{
new_len = 0;
error_code = ERROR_BUFFER_OVERFLOW;
g_clear_pointer (&filename_target, g_free);
}
else if (new_len == 0)
{
g_clear_pointer (&filename_target, g_free);
}
/* GetFinalPathNameByHandle() is documented to return extended paths,
* strip the extended prefix, if it is followed by a drive letter
* and a colon. Otherwise keep it (the path could be
* \\\\?\\Volume{GUID}\\ - it's only usable in extended form).
*/
else if (new_len > 0)
{
gsize len = new_len;
/* Account for NUL-terminator maybe not being counted.
* This is why we overallocated earlier.
*/
if (filename_target[len] != L'\0')
{
len++;
filename_target[len] = L'\0';
}
_g_win32_strip_extended_ntobjm_prefix (filename_target, &len);
new_len = len;
}
}
if (new_len == 0)
succeeded_so_far = FALSE;
}
CloseHandle (file_handle);
}
/* else if fd >= 0 the file_handle was obtained via _get_osfhandle()
* and must not be closed, it is owned by fd.
*/
if (!succeeded_so_far)
{
errno = w32_error_to_errno (error_code);
return -1;
}
/*
* We can't use _wstat64() here, because with UCRT it now gives
* information about the target, even if we want information about
* the link itself (unlike MSVCRT, which gave information about
* the link, and if we needed information about the target we were
* able to resolve it by ourselves prior to calling _wstat64()).
*/
if (fd < 0)
result = _g_win32_fill_statbuf_from_handle_info (filename,
filename_target,
&handle_info,
&statbuf);
else
result = _fstat64 (fd, &statbuf);
if (result != 0)
{
int errsv = errno;
g_free (filename_target);
errno = errsv;
return -1;
}
g_free (filename_target);
buf->st_dev = statbuf.st_dev;
buf->st_mode = statbuf.st_mode;
buf->volume_serial = handle_info.dwVolumeSerialNumber;
buf->file_index = (((guint64) handle_info.nFileIndexHigh) << 32) | handle_info.nFileIndexLow;
/* Note that immediate_attributes is for the symlink
* (if it's a symlink), while handle_info contains info
* about the symlink or the target, depending on the flags
* we used earlier.
*/
buf->attributes = handle_info.dwFileAttributes;
buf->st_nlink = handle_info.nNumberOfLinks;
buf->st_size = (((guint64) handle_info.nFileSizeHigh) << 32) | handle_info.nFileSizeLow;
buf->allocated_size = std_info.AllocationSize.QuadPart;
if (fd < 0 && buf->attributes & FILE_ATTRIBUTE_REPARSE_POINT)
buf->reparse_tag = finddata.dwReserved0;
else
buf->reparse_tag = 0;
buf->st_ctime = statbuf.st_ctime;
buf->st_atime = statbuf.st_atime;
buf->st_mtime = statbuf.st_mtime;
return 0;
}
w_string FileDescriptor::getOpenedPath() const {
#if defined(F_GETPATH)
// macOS. The kernel interface only allows MAXPATHLEN
char buf[MAXPATHLEN + 1];
if (fcntl(fd_, F_GETPATH, buf) == -1) {
throw std::system_error(errno, std::generic_category(),
"fcntl for getOpenedPath");
}
return w_string(buf);
#elif defined(__linux__) || defined(__sun)
char procpath[1024];
#if defined(__linux__)
snprintf(procpath, sizeof(procpath), "/proc/%d/fd/%d", getpid(), fd_);
#elif defined(__sun)
snprintf(procpath, sizeof(procpath), "/proc/%d/path/%d", getpid(), fd_);
#endif
// Avoid an extra stat by speculatively attempting to read into
// a reasonably sized buffer.
char buf[WATCHMAN_NAME_MAX];
auto len = readlink(procpath, buf, sizeof(buf));
if (len == sizeof(buf)) {
len = -1;
// We need to stat it to discover the required length
errno = ENAMETOOLONG;
}
if (len >= 0) {
return w_string(buf, len);
}
if (errno == ENOENT) {
// For this path to not exist must mean that /proc is not mounted.
// Report this with an actionable message
throw std::system_error(ENOSYS, std::generic_category(),
"getOpenedPath: need /proc to be mounted!");
}
if (errno != ENAMETOOLONG) {
throw std::system_error(errno, std::generic_category(),
"readlink for getOpenedPath");
}
// Figure out how much space we need
struct stat st;
if (fstat(fd_, &st)) {
throw std::system_error(errno, std::generic_category(),
"fstat for getOpenedPath");
}
std::string result;
result.resize(st.st_size + 1, 0);
len = readlink(procpath, &result[0], result.size());
if (len == int(result.size())) {
// It's longer than we expected; TOCTOU detected!
throw std::system_error(
ENAMETOOLONG, std::generic_category(),
"readlinkat: link contents grew while examining file");
}
if (len >= 0) {
return w_string(&result[0], len);
}
throw std::system_error(errno, std::generic_category(),
"readlink for getOpenedPath");
#elif defined(_WIN32)
std::wstring wchar;
wchar.resize(WATCHMAN_NAME_MAX);
auto len = GetFinalPathNameByHandleW(
(HANDLE)fd_,
&wchar[0],
wchar.size(),
FILE_NAME_NORMALIZED | VOLUME_NAME_DOS);
auto err = GetLastError();
if (len >= wchar.size()) {
// Grow it
wchar.resize(len);
len = GetFinalPathNameByHandleW(
(HANDLE)fd_, &wchar[0], len, FILE_NAME_NORMALIZED | VOLUME_NAME_DOS);
err = GetLastError();
}
if (len == 0) {
throw std::system_error(
GetLastError(), std::system_category(), "GetFinalPathNameByHandleW");
}
return w_string(wchar.data(), len);
#else
throw std::system_error(ENOSYS, std::generic_category(),
"getOpenedPath not implemented on this platform");
#endif
}
static NTSTATUS PtfsCreate(PWSTR Path, PWSTR VolumePrefix, PWSTR MountPoint, UINT32 DebugFlags,
PTFS **PPtfs)
{
WCHAR FullPath[MAX_PATH];
ULONG Length;
HANDLE Handle;
FILETIME CreationTime;
DWORD LastError;
FSP_FSCTL_VOLUME_PARAMS VolumeParams;
PTFS *Ptfs = 0;
NTSTATUS Result;
*PPtfs = 0;
Handle = CreateFileW(
Path, FILE_READ_ATTRIBUTES, 0, 0,
OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
if (INVALID_HANDLE_VALUE == Handle)
return FspNtStatusFromWin32(GetLastError());
Length = GetFinalPathNameByHandleW(Handle, FullPath, FULLPATH_SIZE - 1, 0);
if (0 == Length)
{
LastError = GetLastError();
CloseHandle(Handle);
return FspNtStatusFromWin32(LastError);
}
if (L'\\' == FullPath[Length - 1])
FullPath[--Length] = L'\0';
if (!GetFileTime(Handle, &CreationTime, 0, 0))
{
LastError = GetLastError();
CloseHandle(Handle);
return FspNtStatusFromWin32(LastError);
}
CloseHandle(Handle);
/* from now on we must goto exit on failure */
Ptfs = malloc(sizeof *Ptfs);
if (0 == Ptfs)
{
Result = STATUS_INSUFFICIENT_RESOURCES;
goto exit;
}
memset(Ptfs, 0, sizeof *Ptfs);
Length = (Length + 1) * sizeof(WCHAR);
Ptfs->Path = malloc(Length);
if (0 == Ptfs->Path)
{
Result = STATUS_INSUFFICIENT_RESOURCES;
goto exit;
}
memcpy(Ptfs->Path, FullPath, Length);
memset(&VolumeParams, 0, sizeof VolumeParams);
VolumeParams.SectorSize = ALLOCATION_UNIT;
VolumeParams.SectorsPerAllocationUnit = 1;
VolumeParams.VolumeCreationTime = ((PLARGE_INTEGER)&CreationTime)->QuadPart;
VolumeParams.VolumeSerialNumber = 0;
VolumeParams.FileInfoTimeout = 1000;
VolumeParams.CaseSensitiveSearch = 0;
VolumeParams.CasePreservedNames = 1;
VolumeParams.UnicodeOnDisk = 1;
VolumeParams.PersistentAcls = 1;
VolumeParams.PostCleanupWhenModifiedOnly = 1;
VolumeParams.PassQueryDirectoryPattern = 1;
VolumeParams.FlushAndPurgeOnCleanup = 1;
VolumeParams.UmFileContextIsUserContext2 = 1;
if (0 != VolumePrefix)
wcscpy_s(VolumeParams.Prefix, sizeof VolumeParams.Prefix / sizeof(WCHAR), VolumePrefix);
wcscpy_s(VolumeParams.FileSystemName, sizeof VolumeParams.FileSystemName / sizeof(WCHAR),
L"" PROGNAME);
Result = FspFileSystemCreate(
VolumeParams.Prefix[0] ? L"" FSP_FSCTL_NET_DEVICE_NAME : L"" FSP_FSCTL_DISK_DEVICE_NAME,
&VolumeParams,
&PtfsInterface,
&Ptfs->FileSystem);
if (!NT_SUCCESS(Result))
goto exit;
Ptfs->FileSystem->UserContext = Ptfs;
Result = FspFileSystemSetMountPoint(Ptfs->FileSystem, MountPoint);
if (!NT_SUCCESS(Result))
goto exit;
FspFileSystemSetDebugLog(Ptfs->FileSystem, DebugFlags);
Result = STATUS_SUCCESS;
exit:
if (NT_SUCCESS(Result))
*PPtfs = Ptfs;
else if (0 != Ptfs)
PtfsDelete(Ptfs);
return Result;
}
static NTSTATUS ReadDirectory(FSP_FILE_SYSTEM *FileSystem,
PVOID FileContext0, PWSTR Pattern, PWSTR Marker,
PVOID Buffer, ULONG BufferLength, PULONG PBytesTransferred)
{
PTFS *Ptfs = (PTFS *)FileSystem->UserContext;
PTFS_FILE_CONTEXT *FileContext = FileContext0;
HANDLE Handle = HandleFromContext(FileContext);
WCHAR FullPath[FULLPATH_SIZE];
ULONG Length, PatternLength;
HANDLE FindHandle;
WIN32_FIND_DATAW FindData;
union
{
UINT8 B[FIELD_OFFSET(FSP_FSCTL_DIR_INFO, FileNameBuf) + MAX_PATH * sizeof(WCHAR)];
FSP_FSCTL_DIR_INFO D;
} DirInfoBuf;
FSP_FSCTL_DIR_INFO *DirInfo = &DirInfoBuf.D;
NTSTATUS DirBufferResult;
DirBufferResult = STATUS_SUCCESS;
if (FspFileSystemAcquireDirectoryBuffer(&FileContext->DirBuffer, 0 == Marker, &DirBufferResult))
{
if (0 == Pattern)
Pattern = L"*";
PatternLength = (ULONG)wcslen(Pattern);
Length = GetFinalPathNameByHandleW(Handle, FullPath, FULLPATH_SIZE - 1, 0);
if (0 == Length)
DirBufferResult = FspNtStatusFromWin32(GetLastError());
else if (Length + 1 + PatternLength >= FULLPATH_SIZE)
DirBufferResult = STATUS_OBJECT_NAME_INVALID;
if (!NT_SUCCESS(DirBufferResult))
{
FspFileSystemReleaseDirectoryBuffer(&FileContext->DirBuffer);
return DirBufferResult;
}
if (L'\\' != FullPath[Length - 1])
FullPath[Length++] = L'\\';
memcpy(FullPath + Length, Pattern, PatternLength * sizeof(WCHAR));
FullPath[Length + PatternLength] = L'\0';
FindHandle = FindFirstFileW(FullPath, &FindData);
if (INVALID_HANDLE_VALUE != FindHandle)
{
do
{
memset(DirInfo, 0, sizeof *DirInfo);
Length = (ULONG)wcslen(FindData.cFileName);
DirInfo->Size = (UINT16)(FIELD_OFFSET(FSP_FSCTL_DIR_INFO, FileNameBuf) + Length * sizeof(WCHAR));
DirInfo->FileInfo.FileAttributes = FindData.dwFileAttributes;
DirInfo->FileInfo.ReparseTag = 0;
DirInfo->FileInfo.FileSize =
((UINT64)FindData.nFileSizeHigh << 32) | (UINT64)FindData.nFileSizeLow;
DirInfo->FileInfo.AllocationSize = (DirInfo->FileInfo.FileSize + ALLOCATION_UNIT - 1)
/ ALLOCATION_UNIT * ALLOCATION_UNIT;
DirInfo->FileInfo.CreationTime = ((PLARGE_INTEGER)&FindData.ftCreationTime)->QuadPart;
DirInfo->FileInfo.LastAccessTime = ((PLARGE_INTEGER)&FindData.ftLastAccessTime)->QuadPart;
DirInfo->FileInfo.LastWriteTime = ((PLARGE_INTEGER)&FindData.ftLastWriteTime)->QuadPart;
DirInfo->FileInfo.ChangeTime = DirInfo->FileInfo.LastWriteTime;
DirInfo->FileInfo.IndexNumber = 0;
DirInfo->FileInfo.HardLinks = 0;
memcpy(DirInfo->FileNameBuf, FindData.cFileName, Length * sizeof(WCHAR));
if (!FspFileSystemFillDirectoryBuffer(&FileContext->DirBuffer, DirInfo, &DirBufferResult))
break;
} while (FindNextFileW(FindHandle, &FindData));
FindClose(FindHandle);
}
FspFileSystemReleaseDirectoryBuffer(&FileContext->DirBuffer);
}
if (!NT_SUCCESS(DirBufferResult))
return DirBufferResult;
FspFileSystemReadDirectoryBuffer(&FileContext->DirBuffer,
Marker, Buffer, BufferLength, PBytesTransferred);
return STATUS_SUCCESS;
}
std::string os_get_final_path(std::string path)
{
#if (_WIN32_WINNT >= 0x0600)
std::wstring wret;
if(path.size()<3 && path.find(":")==std::string::npos)
{
path+=":";
}
if(path.find("\\")==std::string::npos)
{
path+="\\";
}
HANDLE hFile = CreateFileW(ConvertToWchar(path).c_str(),
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS,
NULL);
if( hFile==INVALID_HANDLE_VALUE )
{
Log("Could not open path in os_get_final_path for \""+path+"\"", LL_ERROR);
return path;
}
DWORD dwBufsize = GetFinalPathNameByHandleW( hFile, NULL, 0, VOLUME_NAME_DOS );
if(dwBufsize==0)
{
Log("Error getting path size in in os_get_final_path error="+convert((int)GetLastError())+" for \""+path+"\"", LL_ERROR);
CloseHandle(hFile);
return path;
}
wret.resize(dwBufsize+1);
DWORD dwRet = GetFinalPathNameByHandleW( hFile, (LPWSTR)wret.c_str(), dwBufsize, VOLUME_NAME_DOS );
CloseHandle(hFile);
if(dwRet==0)
{
Log("Error getting path in in os_get_final_path error="+convert((int)GetLastError()), LL_ERROR);
}
else if(dwRet<wret.size())
{
wret.resize(dwRet);
if(wret.find(L"\\\\?\\UNC")==0)
{
wret.erase(0, 7);
wret=L"\\"+wret;
}
if(wret.find(L"\\\\?\\")==0)
{
wret.erase(0,4);
}
/*if(wret.size()>=2 && wret[wret.size()-2]=='.' && ret[wret.size()-1]=='.' )
{
wret.resize(ret.size()-2);
}*/
return ConvertFromWchar(wret);
}
else
{
Log("Error getting path (buffer too small) in in os_get_final_path error="+convert((int)GetLastError()), LL_ERROR);
}
return path;
#else
return path;
#endif
}