-//===- llvm/Support/Win32/PathV2.cpp - Windows Path Impl --------*- C++ -*-===//
+//===- llvm/Support/Windows/PathV2.inc - Windows Path Impl ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//===----------------------------------------------------------------------===//
#include "Windows.h"
-#include <WinCrypt.h>
+#include <wincrypt.h>
#include <fcntl.h>
#include <io.h>
#include <sys/stat.h>
::GetProcAddress(::GetModuleHandleA("kernel32.dll"),
"CreateSymbolicLinkW"));
- error_code UTF8ToUTF16(const StringRef &utf8,
- SmallVectorImpl<wchar_t> &utf16) {
+ error_code UTF8ToUTF16(StringRef utf8, SmallVectorImpl<wchar_t> &utf16) {
int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
utf8.begin(), utf8.size(),
utf16.begin(), 0);
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
+ file_status st;
+ if (error_code ec = status(path, st))
+ return ec;
+
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
path_utf16))
return ec;
- if (!::DeleteFileW(path_utf16.begin())) {
- error_code ec = windows_error(::GetLastError());
- if (ec != windows_error::file_not_found)
- return ec;
- existed = false;
- } else
- existed = true;
+ if (st.type() == file_type::directory_file) {
+ if (!::RemoveDirectoryW(c_str(path_utf16))) {
+ error_code ec = windows_error(::GetLastError());
+ if (ec != windows_error::file_not_found)
+ return ec;
+ existed = false;
+ } else
+ existed = true;
+ } else {
+ if (!::DeleteFileW(c_str(path_utf16))) {
+ error_code ec = windows_error(::GetLastError());
+ if (ec != windows_error::file_not_found)
+ return ec;
+ existed = false;
+ } else
+ existed = true;
+ }
return success;
}
if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
- if (!::MoveFileW(wide_from.begin(), wide_to.begin()))
+ if (!::MoveFileExW(wide_from.begin(), wide_to.begin(),
+ MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
return windows_error(::GetLastError());
return success;
return success;
}
+static bool isReservedName(StringRef path) {
+ // This list of reserved names comes from MSDN, at:
+ // http://msdn.microsoft.com/en-us/library/aa365247%28v=vs.85%29.aspx
+ static const char *sReservedNames[] = { "nul", "con", "prn", "aux",
+ "com1", "com2", "com3", "com4", "com5", "com6",
+ "com7", "com8", "com9", "lpt1", "lpt2", "lpt3",
+ "lpt4", "lpt5", "lpt6", "lpt7", "lpt8", "lpt9" };
+
+ // First, check to see if this is a device namespace, which always
+ // starts with \\.\, since device namespaces are not legal file paths.
+ if (path.startswith("\\\\.\\"))
+ return true;
+
+ // Then compare against the list of ancient reserved names
+ for (size_t i = 0; i < sizeof(sReservedNames) / sizeof(const char *); ++i) {
+ if (path.equals_lower(sReservedNames[i]))
+ return true;
+ }
+
+ // The path isn't what we consider reserved.
+ return false;
+}
+
error_code status(const Twine &path, file_status &result) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;
- if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
+ StringRef path8 = path.toStringRef(path_storage);
+ if (isReservedName(path8)) {
+ result = file_status(file_type::character_file);
+ return success;
+ }
+
+ if (error_code ec = UTF8ToUTF16(path8,
path_utf16))
return ec;
}
error_code unique_file(const Twine &model, int &result_fd,
- SmallVectorImpl<char> &result_path) {
+ SmallVectorImpl<char> &result_path,
+ bool makeAbsolute) {
// Use result_path as temp storage.
result_path.set_size(0);
StringRef m = model.toStringRef(result_path);
SmallVector<wchar_t, 128> model_utf16;
if (error_code ec = UTF8ToUTF16(m, model_utf16)) return ec;
- // Make model absolute by prepending a temp directory if it's not already.
- bool absolute;
- path::is_absolute(m, absolute);
+ if (makeAbsolute) {
+ // Make model absolute by prepending a temp directory if it's not already.
+ bool absolute = path::is_absolute(m);
- if (!absolute) {
- SmallVector<wchar_t, 64> temp_dir;
- if (error_code ec = TempDir(temp_dir)) return ec;
- // Handle c: by removing it.
- if (model_utf16.size() > 2 && model_utf16[1] == L':') {
- model_utf16.erase(model_utf16.begin(), model_utf16.begin() + 2);
+ if (!absolute) {
+ SmallVector<wchar_t, 64> temp_dir;
+ if (error_code ec = TempDir(temp_dir)) return ec;
+ // Handle c: by removing it.
+ if (model_utf16.size() > 2 && model_utf16[1] == L':') {
+ model_utf16.erase(model_utf16.begin(), model_utf16.begin() + 2);
+ }
+ model_utf16.insert(model_utf16.begin(), temp_dir.begin(), temp_dir.end());
}
- model_utf16.insert(model_utf16.begin(), temp_dir.begin(), temp_dir.end());
}
// Replace '%' with random chars. From here on, DO NOT modify model. It may be
NULL,
NULL,
PROV_RSA_FULL,
- 0))
+ CRYPT_VERIFYCONTEXT))
return windows_error(::GetLastError());
ScopedCryptContext CryptoProvider(HCPC);
return success;
}
-error_code directory_iterator_construct(directory_iterator& it,
- const StringRef &path) {
+error_code get_magic(const Twine &path, uint32_t len,
+ SmallVectorImpl<char> &result) {
+ SmallString<128> path_storage;
+ SmallVector<wchar_t, 128> path_utf16;
+ result.set_size(0);
+
+ // Convert path to UTF-16.
+ if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
+ path_utf16))
+ return ec;
+
+ // Open file.
+ HANDLE file = ::CreateFileW(c_str(path_utf16),
+ GENERIC_READ,
+ FILE_SHARE_READ,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_READONLY,
+ NULL);
+ if (file == INVALID_HANDLE_VALUE)
+ return windows_error(::GetLastError());
+
+ // Allocate buffer.
+ result.reserve(len);
+
+ // Get magic!
+ DWORD bytes_read = 0;
+ BOOL read_success = ::ReadFile(file, result.data(), len, &bytes_read, NULL);
+ error_code ec = windows_error(::GetLastError());
+ ::CloseHandle(file);
+ if (!read_success || (bytes_read != len)) {
+ // Set result size to the number of bytes read if it's valid.
+ if (bytes_read <= len)
+ result.set_size(bytes_read);
+ // ERROR_HANDLE_EOF is mapped to errc::value_too_large.
+ return ec;
+ }
+
+ result.set_size(len);
+ return success;
+}
+
+error_code detail::directory_iterator_construct(detail::DirIterState &it,
+ StringRef path){
SmallVector<wchar_t, 128> path_utf16;
if (error_code ec = UTF8ToUTF16(path,
// Get the first directory entry.
WIN32_FIND_DATAW FirstFind;
- ScopedFindHandle FindHandle(::FindFirstFileW(path_utf16.c_str(), &FirstFind));
+ ScopedFindHandle FindHandle(::FindFirstFileW(c_str(path_utf16), &FirstFind));
if (!FindHandle)
return windows_error(::GetLastError());
+ size_t FilenameLen = ::wcslen(FirstFind.cFileName);
+ while ((FilenameLen == 1 && FirstFind.cFileName[0] == L'.') ||
+ (FilenameLen == 2 && FirstFind.cFileName[0] == L'.' &&
+ FirstFind.cFileName[1] == L'.'))
+ if (!::FindNextFileW(FindHandle, &FirstFind)) {
+ error_code ec = windows_error(::GetLastError());
+ // Check for end.
+ if (ec == windows_error::no_more_files)
+ return detail::directory_iterator_destruct(it);
+ return ec;
+ } else
+ FilenameLen = ::wcslen(FirstFind.cFileName);
+
// Construct the current directory entry.
- SmallString<128> directory_entry_path_utf8;
+ SmallString<128> directory_entry_name_utf8;
if (error_code ec = UTF16ToUTF8(FirstFind.cFileName,
::wcslen(FirstFind.cFileName),
- directory_entry_path_utf8))
+ directory_entry_name_utf8))
return ec;
it.IterationHandle = intptr_t(FindHandle.take());
- it.CurrentEntry = directory_entry(path);
- it.CurrentEntry.replace_filename(Twine(directory_entry_path_utf8));
+ SmallString<128> directory_entry_path(path);
+ path::append(directory_entry_path, directory_entry_name_utf8.str());
+ it.CurrentEntry = directory_entry(directory_entry_path.str());
return success;
}
-error_code directory_iterator_destruct(directory_iterator& it) {
+error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
if (it.IterationHandle != 0)
// Closes the handle if it's valid.
ScopedFindHandle close(HANDLE(it.IterationHandle));
return success;
}
-error_code directory_iterator_increment(directory_iterator& it) {
+error_code detail::directory_iterator_increment(detail::DirIterState &it) {
WIN32_FIND_DATAW FindData;
if (!::FindNextFileW(HANDLE(it.IterationHandle), &FindData)) {
error_code ec = windows_error(::GetLastError());
// Check for end.
if (ec == windows_error::no_more_files)
- return directory_iterator_destruct(it);
+ return detail::directory_iterator_destruct(it);
return ec;
}
+ size_t FilenameLen = ::wcslen(FindData.cFileName);
+ if ((FilenameLen == 1 && FindData.cFileName[0] == L'.') ||
+ (FilenameLen == 2 && FindData.cFileName[0] == L'.' &&
+ FindData.cFileName[1] == L'.'))
+ return directory_iterator_increment(it);
+
SmallString<128> directory_entry_path_utf8;
if (error_code ec = UTF16ToUTF8(FindData.cFileName,
::wcslen(FindData.cFileName),