C++ 如何将本机(NT)路径名转换为Win32路径名?
我正在报告从本机系统API收集的一些信息。(我知道这很糟糕……但我得到的信息是其他方式无法获得的,如果到时候需要更新我的应用程序,我没有什么问题。) 本机API返回本机路径名,如C++ 如何将本机(NT)路径名转换为Win32路径名?,c++,windows,native,nt,C++,Windows,Native,Nt,我正在报告从本机系统API收集的一些信息。(我知道这很糟糕……但我得到的信息是其他方式无法获得的,如果到时候需要更新我的应用程序,我没有什么问题。) 本机API返回本机路径名,如ob所示,即\SystemRoot\System32\Ntoskrnl.exe,或\??\C:\Program Files\VMWare Workstation\vstor-ws60.sys 我可以替换常用前缀,即 std::wstring NtPathToWin32Path( std::wstring ntPath )
ob
所示,即\SystemRoot\System32\Ntoskrnl.exe
,或\??\C:\Program Files\VMWare Workstation\vstor-ws60.sys
我可以替换常用前缀,即
std::wstring NtPathToWin32Path( std::wstring ntPath )
{
if (boost::starts_with(ntPath, L"\\\\?\\"))
{
ntPath.erase(ntPath.begin(), ntPath.begin() + 4);
return ntPath;
}
if (boost::starts_with(ntPath, L"\\??\\"))
{
ntPath.erase(ntPath.begin(), ntPath.begin() + 4);
}
if (boost::starts_with(ntPath, L"\\"))
{
ntPath.erase(ntPath.begin(), ntPath.begin() + 1);
}
if (boost::istarts_with(ntPath, L"globalroot\\"))
{
ntPath.erase(ntPath.begin(), ntPath.begin() + 11);
}
if (boost::istarts_with(ntPath, L"systemroot"))
{
ntPath.replace(ntPath.begin(), ntPath.begin() + 10, GetWindowsPath());
}
if (boost::istarts_with(ntPath, L"windows"))
{
ntPath.replace(ntPath.begin(), ntPath.begin() + 7, GetWindowsPath());
}
return ntPath;
}
TEST(Win32Path, NtPathDoubleQuestions)
{
ASSERT_EQ(L"C:\\Example", NtPathToWin32Path(L"\\??\\C:\\Example"));
}
TEST(Win32Path, NtPathUncBegin)
{
ASSERT_EQ(L"C:\\Example", NtPathToWin32Path(L"\\\\?\\C:\\Example"));
}
TEST(Win32Path, NtPathWindowsStart)
{
ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\Windows\\Hello\\World"));
}
TEST(Win32Path, NtPathSystemrootStart)
{
ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\SystemRoot\\Hello\\World"));
}
TEST(Win32Path, NtPathGlobalRootSystemRoot)
{
ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\globalroot\\SystemRoot\\Hello\\World"));
}
但如果没有一些API(本机或其他)将这些转换为Win32路径名,我会非常惊讶。这样的API存在吗?请查看此链接以获取Win32中的规范路径名。这可能对您有所帮助:
我们在生产代码中这样做。据我所知,没有API(公共或私有)来处理这个问题。我们只是用几个前缀做一些字符串比较,这对我们很有用 很明显,在ntdll.dll(XP?)中有一个名为RtlNtPathNameToDosPathName()的函数,但我不知道它是做什么的;不过,我想它与\Device\Harddisk0之类的东西有更多的关系
不过,我不确定是否真的需要这样的功能。Win32将路径(在CreateFile等意义上)传递给NT;NT不向Win32传递路径。所以ntdll.dll实际上不需要从NT路径转到Win32路径。在某些NT查询函数返回完整路径的罕见情况下,任何转换函数都可能是Win32 dll的内部函数(例如,未导出)。我甚至不知道它们是否麻烦,因为像GetModuleFileName()这样的东西只会返回用于加载图像的任何路径。我想这只是一个漏洞百出的抽象概念。这里有一些你可以尝试的东西。首先用于打开文件、卷等进行读取。然后使用返回的句柄获取完整路径,如所述 见
您需要首先获取该路径下文件的句柄,然后获取句柄的Win32路径。我编写了一个函数,将不同类型的NT设备名(文件名、COM端口、网络路径等)转换为DOS路径 有两个功能。一个将句柄转换为NT路径,另一个将此NT路径转换为DOS路径 请看这里:
这有点晚了,但我仍然会发布我的答案,因为即使在今天,这也是一个非常好的问题 我将分享我的一个功能测试和转换NT到DOS路径使用。在我的例子中,我还必须从ANSI转换为UNICODE,所以这对您来说是一个小小的奖励,您可以看到并理解如何实现这一点 所有这些代码都可以在用户模式下使用,所以我们需要首先准备一些东西 定义和结构:
typedef NTSTATUS(WINAPI* pRtlAnsiStringToUnicodeString)(PUNICODE_STRING, PANSI_STRING, BOOL);
typedef struct _RTL_BUFFER {
PUCHAR Buffer;
PUCHAR StaticBuffer;
SIZE_T Size;
SIZE_T StaticSize;
SIZE_T ReservedForAllocatedSize; // for future doubling
PVOID ReservedForIMalloc; // for future pluggable growth
} RTL_BUFFER, * PRTL_BUFFER;
typedef struct _RTL_UNICODE_STRING_BUFFER {
UNICODE_STRING String;
RTL_BUFFER ByteBuffer;
UCHAR MinimumStaticBufferForTerminalNul[sizeof(WCHAR)];
} RTL_UNICODE_STRING_BUFFER, * PRTL_UNICODE_STRING_BUFFER;
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_AMBIGUOUS (0x00000001)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_UNC (0x00000002)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_DRIVE (0x00000003)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_ALREADY_DOS (0x00000004)
typedef NTSTATUS(WINAPI* pRtlNtPathNameToDosPathName)(__in ULONG Flags, __inout PRTL_UNICODE_STRING_BUFFER Path, __out_opt PULONG Disposition, __inout_opt PWSTR* FilePart);
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE (0x00000001)
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING (0x00000002)
#define RTL_DUPSTR_ADD_NULL RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
#define RTL_DUPSTR_ALLOC_NULL RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
typedef NTSTATUS(WINAPI* pRtlDuplicateUnicodeString)(_In_ ULONG Flags, _In_ PUNICODE_STRING StringIn, _Out_ PUNICODE_STRING StringOut);
pRtlAnsiStringToUnicodeString MyRtlAnsiStringToUnicodeString;
pRtlNtPathNameToDosPathName MyRtlNtPathNameToDosPathName;
pRtlDuplicateUnicodeString MyRtlDuplicateUnicodeString;
MyRtlAnsiStringToUnicodeString = (pRtlAnsiStringToUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlAnsiStringToUnicodeString");
MyRtlNtPathNameToDosPathName = (pRtlNtPathNameToDosPathName)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlNtPathNameToDosPathName");
MyRtlDuplicateUnicodeString = (pRtlDuplicateUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlDuplicateUnicodeString");
NTSTATUS NtPathNameToDosPathName(PUNICODE_STRING DosPath, PUNICODE_STRING NtPath)
{
NTSTATUS Status;
ULONG_PTR BufferSize;
PWSTR Buffer;
RTL_UNICODE_STRING_BUFFER UnicodeBuffer;
BufferSize = NtPath->MaximumLength + MAX_PATH * sizeof(WCHAR);
Buffer = (PWSTR)_alloca(BufferSize);
ZeroMemory(&UnicodeBuffer, sizeof(UnicodeBuffer));
UnicodeBuffer.String = *NtPath;
UnicodeBuffer.String.Buffer = Buffer;
UnicodeBuffer.String.MaximumLength = (USHORT)BufferSize;
UnicodeBuffer.ByteBuffer.Buffer = (PUCHAR)Buffer;
UnicodeBuffer.ByteBuffer.Size = BufferSize;
CopyMemory(Buffer, NtPath->Buffer, NtPath->Length);
MyRtlNtPathNameToDosPathName(0, &UnicodeBuffer, NULL, NULL);
return MyRtlDuplicateUnicodeString(RTL_DUPSTR_ADD_NULL, &UnicodeBuffer.String, DosPath);
}
UNICODE_STRING us;
UNICODE_STRING DosPath;
ANSI_STRING as;
as.Buffer = (char*)malloc(strlen(NT_PATH_FILE_OR_DIR) + 1);
strcpy(as.Buffer, NT_PATH_FILE_OR_DIR);
as.Length = as.MaximumLength = us.MaximumLength = us.Length = strlen(NT_PATH_FILE_OR_DIR);
MyRtlAnsiStringToUnicodeString(&us, &as, TRUE);
NtPathNameToDosPathName(&DosPath, &us);
导入功能:
typedef NTSTATUS(WINAPI* pRtlAnsiStringToUnicodeString)(PUNICODE_STRING, PANSI_STRING, BOOL);
typedef struct _RTL_BUFFER {
PUCHAR Buffer;
PUCHAR StaticBuffer;
SIZE_T Size;
SIZE_T StaticSize;
SIZE_T ReservedForAllocatedSize; // for future doubling
PVOID ReservedForIMalloc; // for future pluggable growth
} RTL_BUFFER, * PRTL_BUFFER;
typedef struct _RTL_UNICODE_STRING_BUFFER {
UNICODE_STRING String;
RTL_BUFFER ByteBuffer;
UCHAR MinimumStaticBufferForTerminalNul[sizeof(WCHAR)];
} RTL_UNICODE_STRING_BUFFER, * PRTL_UNICODE_STRING_BUFFER;
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_AMBIGUOUS (0x00000001)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_UNC (0x00000002)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_DRIVE (0x00000003)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_ALREADY_DOS (0x00000004)
typedef NTSTATUS(WINAPI* pRtlNtPathNameToDosPathName)(__in ULONG Flags, __inout PRTL_UNICODE_STRING_BUFFER Path, __out_opt PULONG Disposition, __inout_opt PWSTR* FilePart);
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE (0x00000001)
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING (0x00000002)
#define RTL_DUPSTR_ADD_NULL RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
#define RTL_DUPSTR_ALLOC_NULL RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
typedef NTSTATUS(WINAPI* pRtlDuplicateUnicodeString)(_In_ ULONG Flags, _In_ PUNICODE_STRING StringIn, _Out_ PUNICODE_STRING StringOut);
pRtlAnsiStringToUnicodeString MyRtlAnsiStringToUnicodeString;
pRtlNtPathNameToDosPathName MyRtlNtPathNameToDosPathName;
pRtlDuplicateUnicodeString MyRtlDuplicateUnicodeString;
MyRtlAnsiStringToUnicodeString = (pRtlAnsiStringToUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlAnsiStringToUnicodeString");
MyRtlNtPathNameToDosPathName = (pRtlNtPathNameToDosPathName)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlNtPathNameToDosPathName");
MyRtlDuplicateUnicodeString = (pRtlDuplicateUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlDuplicateUnicodeString");
NTSTATUS NtPathNameToDosPathName(PUNICODE_STRING DosPath, PUNICODE_STRING NtPath)
{
NTSTATUS Status;
ULONG_PTR BufferSize;
PWSTR Buffer;
RTL_UNICODE_STRING_BUFFER UnicodeBuffer;
BufferSize = NtPath->MaximumLength + MAX_PATH * sizeof(WCHAR);
Buffer = (PWSTR)_alloca(BufferSize);
ZeroMemory(&UnicodeBuffer, sizeof(UnicodeBuffer));
UnicodeBuffer.String = *NtPath;
UnicodeBuffer.String.Buffer = Buffer;
UnicodeBuffer.String.MaximumLength = (USHORT)BufferSize;
UnicodeBuffer.ByteBuffer.Buffer = (PUCHAR)Buffer;
UnicodeBuffer.ByteBuffer.Size = BufferSize;
CopyMemory(Buffer, NtPath->Buffer, NtPath->Length);
MyRtlNtPathNameToDosPathName(0, &UnicodeBuffer, NULL, NULL);
return MyRtlDuplicateUnicodeString(RTL_DUPSTR_ADD_NULL, &UnicodeBuffer.String, DosPath);
}
UNICODE_STRING us;
UNICODE_STRING DosPath;
ANSI_STRING as;
as.Buffer = (char*)malloc(strlen(NT_PATH_FILE_OR_DIR) + 1);
strcpy(as.Buffer, NT_PATH_FILE_OR_DIR);
as.Length = as.MaximumLength = us.MaximumLength = us.Length = strlen(NT_PATH_FILE_OR_DIR);
MyRtlAnsiStringToUnicodeString(&us, &as, TRUE);
NtPathNameToDosPathName(&DosPath, &us);
辅助功能:
typedef NTSTATUS(WINAPI* pRtlAnsiStringToUnicodeString)(PUNICODE_STRING, PANSI_STRING, BOOL);
typedef struct _RTL_BUFFER {
PUCHAR Buffer;
PUCHAR StaticBuffer;
SIZE_T Size;
SIZE_T StaticSize;
SIZE_T ReservedForAllocatedSize; // for future doubling
PVOID ReservedForIMalloc; // for future pluggable growth
} RTL_BUFFER, * PRTL_BUFFER;
typedef struct _RTL_UNICODE_STRING_BUFFER {
UNICODE_STRING String;
RTL_BUFFER ByteBuffer;
UCHAR MinimumStaticBufferForTerminalNul[sizeof(WCHAR)];
} RTL_UNICODE_STRING_BUFFER, * PRTL_UNICODE_STRING_BUFFER;
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_AMBIGUOUS (0x00000001)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_UNC (0x00000002)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_DRIVE (0x00000003)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_ALREADY_DOS (0x00000004)
typedef NTSTATUS(WINAPI* pRtlNtPathNameToDosPathName)(__in ULONG Flags, __inout PRTL_UNICODE_STRING_BUFFER Path, __out_opt PULONG Disposition, __inout_opt PWSTR* FilePart);
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE (0x00000001)
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING (0x00000002)
#define RTL_DUPSTR_ADD_NULL RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
#define RTL_DUPSTR_ALLOC_NULL RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
typedef NTSTATUS(WINAPI* pRtlDuplicateUnicodeString)(_In_ ULONG Flags, _In_ PUNICODE_STRING StringIn, _Out_ PUNICODE_STRING StringOut);
pRtlAnsiStringToUnicodeString MyRtlAnsiStringToUnicodeString;
pRtlNtPathNameToDosPathName MyRtlNtPathNameToDosPathName;
pRtlDuplicateUnicodeString MyRtlDuplicateUnicodeString;
MyRtlAnsiStringToUnicodeString = (pRtlAnsiStringToUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlAnsiStringToUnicodeString");
MyRtlNtPathNameToDosPathName = (pRtlNtPathNameToDosPathName)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlNtPathNameToDosPathName");
MyRtlDuplicateUnicodeString = (pRtlDuplicateUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlDuplicateUnicodeString");
NTSTATUS NtPathNameToDosPathName(PUNICODE_STRING DosPath, PUNICODE_STRING NtPath)
{
NTSTATUS Status;
ULONG_PTR BufferSize;
PWSTR Buffer;
RTL_UNICODE_STRING_BUFFER UnicodeBuffer;
BufferSize = NtPath->MaximumLength + MAX_PATH * sizeof(WCHAR);
Buffer = (PWSTR)_alloca(BufferSize);
ZeroMemory(&UnicodeBuffer, sizeof(UnicodeBuffer));
UnicodeBuffer.String = *NtPath;
UnicodeBuffer.String.Buffer = Buffer;
UnicodeBuffer.String.MaximumLength = (USHORT)BufferSize;
UnicodeBuffer.ByteBuffer.Buffer = (PUCHAR)Buffer;
UnicodeBuffer.ByteBuffer.Size = BufferSize;
CopyMemory(Buffer, NtPath->Buffer, NtPath->Length);
MyRtlNtPathNameToDosPathName(0, &UnicodeBuffer, NULL, NULL);
return MyRtlDuplicateUnicodeString(RTL_DUPSTR_ADD_NULL, &UnicodeBuffer.String, DosPath);
}
UNICODE_STRING us;
UNICODE_STRING DosPath;
ANSI_STRING as;
as.Buffer = (char*)malloc(strlen(NT_PATH_FILE_OR_DIR) + 1);
strcpy(as.Buffer, NT_PATH_FILE_OR_DIR);
as.Length = as.MaximumLength = us.MaximumLength = us.Length = strlen(NT_PATH_FILE_OR_DIR);
MyRtlAnsiStringToUnicodeString(&us, &as, TRUE);
NtPathNameToDosPathName(&DosPath, &us);
函数用法:
typedef NTSTATUS(WINAPI* pRtlAnsiStringToUnicodeString)(PUNICODE_STRING, PANSI_STRING, BOOL);
typedef struct _RTL_BUFFER {
PUCHAR Buffer;
PUCHAR StaticBuffer;
SIZE_T Size;
SIZE_T StaticSize;
SIZE_T ReservedForAllocatedSize; // for future doubling
PVOID ReservedForIMalloc; // for future pluggable growth
} RTL_BUFFER, * PRTL_BUFFER;
typedef struct _RTL_UNICODE_STRING_BUFFER {
UNICODE_STRING String;
RTL_BUFFER ByteBuffer;
UCHAR MinimumStaticBufferForTerminalNul[sizeof(WCHAR)];
} RTL_UNICODE_STRING_BUFFER, * PRTL_UNICODE_STRING_BUFFER;
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_AMBIGUOUS (0x00000001)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_UNC (0x00000002)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_DRIVE (0x00000003)
#define RTL_NT_PATH_NAME_TO_DOS_PATH_NAME_ALREADY_DOS (0x00000004)
typedef NTSTATUS(WINAPI* pRtlNtPathNameToDosPathName)(__in ULONG Flags, __inout PRTL_UNICODE_STRING_BUFFER Path, __out_opt PULONG Disposition, __inout_opt PWSTR* FilePart);
#define RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE (0x00000001)
#define RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING (0x00000002)
#define RTL_DUPSTR_ADD_NULL RTL_DUPLICATE_UNICODE_STRING_NULL_TERMINATE
#define RTL_DUPSTR_ALLOC_NULL RTL_DUPLICATE_UNICODE_STRING_ALLOCATE_NULL_STRING
typedef NTSTATUS(WINAPI* pRtlDuplicateUnicodeString)(_In_ ULONG Flags, _In_ PUNICODE_STRING StringIn, _Out_ PUNICODE_STRING StringOut);
pRtlAnsiStringToUnicodeString MyRtlAnsiStringToUnicodeString;
pRtlNtPathNameToDosPathName MyRtlNtPathNameToDosPathName;
pRtlDuplicateUnicodeString MyRtlDuplicateUnicodeString;
MyRtlAnsiStringToUnicodeString = (pRtlAnsiStringToUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlAnsiStringToUnicodeString");
MyRtlNtPathNameToDosPathName = (pRtlNtPathNameToDosPathName)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlNtPathNameToDosPathName");
MyRtlDuplicateUnicodeString = (pRtlDuplicateUnicodeString)GetProcAddress(GetModuleHandle("ntdll.dll"), "RtlDuplicateUnicodeString");
NTSTATUS NtPathNameToDosPathName(PUNICODE_STRING DosPath, PUNICODE_STRING NtPath)
{
NTSTATUS Status;
ULONG_PTR BufferSize;
PWSTR Buffer;
RTL_UNICODE_STRING_BUFFER UnicodeBuffer;
BufferSize = NtPath->MaximumLength + MAX_PATH * sizeof(WCHAR);
Buffer = (PWSTR)_alloca(BufferSize);
ZeroMemory(&UnicodeBuffer, sizeof(UnicodeBuffer));
UnicodeBuffer.String = *NtPath;
UnicodeBuffer.String.Buffer = Buffer;
UnicodeBuffer.String.MaximumLength = (USHORT)BufferSize;
UnicodeBuffer.ByteBuffer.Buffer = (PUCHAR)Buffer;
UnicodeBuffer.ByteBuffer.Size = BufferSize;
CopyMemory(Buffer, NtPath->Buffer, NtPath->Length);
MyRtlNtPathNameToDosPathName(0, &UnicodeBuffer, NULL, NULL);
return MyRtlDuplicateUnicodeString(RTL_DUPSTR_ADD_NULL, &UnicodeBuffer.String, DosPath);
}
UNICODE_STRING us;
UNICODE_STRING DosPath;
ANSI_STRING as;
as.Buffer = (char*)malloc(strlen(NT_PATH_FILE_OR_DIR) + 1);
strcpy(as.Buffer, NT_PATH_FILE_OR_DIR);
as.Length = as.MaximumLength = us.MaximumLength = us.Length = strlen(NT_PATH_FILE_OR_DIR);
MyRtlAnsiStringToUnicodeString(&us, &as, TRUE);
NtPathNameToDosPathName(&DosPath, &us);
如前所述,在我的例子中,我需要从ANSI转换为UNICODE,这可能不适用于您的情况,因此您可以删除它
如上所述,可以根据需要创建自定义函数和转换路径。+1--这很有趣,但它是关于将Win32路径转换为另一种Win32路径。我一开始没有win32路径。PathXxx函数不能在我现有的基础上工作。shell API函数
PathCanonicalize
能做到这一点吗@裁判官:不,PathCanonicalize接受Win32路径。我正在尝试获取win32路径。我不知道有任何这样的函数,而且也不总是可能的:NT可以使用win32根本无法使用的路径。无论如何祝你好运…@比利:你可以试试看。首先使用NtCreateFile
()打开文件、卷等进行读取。然后使用返回的句柄
获取完整路径,如这里所述@ephemient:Ah--看起来它是在Vista中添加的。不管怎样你可以调用NtQueryFileInformation
并从句柄请求文件名\u信息。在任何常规基础上,我只见过\\??\\和\\SystemRoot,即使如此,这也是非常罕见的(通常是在启动序列的早期启动低级进程。有时也在注册表中,通常与所述进程相关。我正在处理未记录的东西,所有这些前缀在这里似乎都很常见。我猜它们未记录是有原因的:微软没有为此提供有记录的API,PIt很遗憾.Windows内部整天都在将NT路径转换为DOS路径,但我们程序员不能。如果您对如何使用RTLntPathName ToDospathName()感兴趣,请看这里:+1:)请注意,您可以通过调用NtQueryFileInformation
并请求信息类FileNameInformation
来跳过文件映射步骤(尽管我还没有测试过这一点,当然这将进入未记录的内容…)GetFinalPathNameByHandle可能有助于清理此问题!这是可行的,但问题是您需要访问文件的位置才能执行它(因为您需要能够打开句柄)--我通常没有。@Billy:你所需要的只是FILE\u READ\u ATTRIBUTES
access,你几乎总能得到它。如果你得不到它,就在父目录上试试,然后把文件名连在一起。(没有任何句柄就不能转换,因为它不总是一对一的映射。)@Mehrdad:必须能够在没有句柄的情况下进行转换。FindFirstFile/FindTextFile/FindClose不打开句柄。即使无法读取文件上的任何属性,也可以使用它们列出目录结构。此解决方案有效,因此+1,但它确实对我没有帮助:(@Billy:事实上,FindFirstFile
确实打开了目录的句柄!你怎么会认为它没有打开?:)@Mehrdad:目录,是的。不是目录中的文件。