Source file src/cmd/vendor/golang.org/x/sys/windows/syscall_windows.go

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // Windows system calls.
     6  
     7  package windows
     8  
     9  import (
    10  	errorspkg "errors"
    11  	"fmt"
    12  	"runtime"
    13  	"sync"
    14  	"syscall"
    15  	"time"
    16  	"unicode/utf16"
    17  	"unsafe"
    18  )
    19  
    20  type Handle uintptr
    21  type HWND uintptr
    22  
    23  const (
    24  	InvalidHandle = ^Handle(0)
    25  	InvalidHWND   = ^HWND(0)
    26  
    27  	// Flags for DefineDosDevice.
    28  	DDD_EXACT_MATCH_ON_REMOVE = 0x00000004
    29  	DDD_NO_BROADCAST_SYSTEM   = 0x00000008
    30  	DDD_RAW_TARGET_PATH       = 0x00000001
    31  	DDD_REMOVE_DEFINITION     = 0x00000002
    32  
    33  	// Return values for GetDriveType.
    34  	DRIVE_UNKNOWN     = 0
    35  	DRIVE_NO_ROOT_DIR = 1
    36  	DRIVE_REMOVABLE   = 2
    37  	DRIVE_FIXED       = 3
    38  	DRIVE_REMOTE      = 4
    39  	DRIVE_CDROM       = 5
    40  	DRIVE_RAMDISK     = 6
    41  
    42  	// File system flags from GetVolumeInformation and GetVolumeInformationByHandle.
    43  	FILE_CASE_SENSITIVE_SEARCH        = 0x00000001
    44  	FILE_CASE_PRESERVED_NAMES         = 0x00000002
    45  	FILE_FILE_COMPRESSION             = 0x00000010
    46  	FILE_DAX_VOLUME                   = 0x20000000
    47  	FILE_NAMED_STREAMS                = 0x00040000
    48  	FILE_PERSISTENT_ACLS              = 0x00000008
    49  	FILE_READ_ONLY_VOLUME             = 0x00080000
    50  	FILE_SEQUENTIAL_WRITE_ONCE        = 0x00100000
    51  	FILE_SUPPORTS_ENCRYPTION          = 0x00020000
    52  	FILE_SUPPORTS_EXTENDED_ATTRIBUTES = 0x00800000
    53  	FILE_SUPPORTS_HARD_LINKS          = 0x00400000
    54  	FILE_SUPPORTS_OBJECT_IDS          = 0x00010000
    55  	FILE_SUPPORTS_OPEN_BY_FILE_ID     = 0x01000000
    56  	FILE_SUPPORTS_REPARSE_POINTS      = 0x00000080
    57  	FILE_SUPPORTS_SPARSE_FILES        = 0x00000040
    58  	FILE_SUPPORTS_TRANSACTIONS        = 0x00200000
    59  	FILE_SUPPORTS_USN_JOURNAL         = 0x02000000
    60  	FILE_UNICODE_ON_DISK              = 0x00000004
    61  	FILE_VOLUME_IS_COMPRESSED         = 0x00008000
    62  	FILE_VOLUME_QUOTAS                = 0x00000020
    63  
    64  	// Flags for LockFileEx.
    65  	LOCKFILE_FAIL_IMMEDIATELY = 0x00000001
    66  	LOCKFILE_EXCLUSIVE_LOCK   = 0x00000002
    67  
    68  	// Return value of SleepEx and other APC functions
    69  	WAIT_IO_COMPLETION = 0x000000C0
    70  )
    71  
    72  // StringToUTF16 is deprecated. Use UTF16FromString instead.
    73  // If s contains a NUL byte this function panics instead of
    74  // returning an error.
    75  func StringToUTF16(s string) []uint16 {
    76  	a, err := UTF16FromString(s)
    77  	if err != nil {
    78  		panic("windows: string with NUL passed to StringToUTF16")
    79  	}
    80  	return a
    81  }
    82  
    83  // UTF16FromString returns the UTF-16 encoding of the UTF-8 string
    84  // s, with a terminating NUL added. If s contains a NUL byte at any
    85  // location, it returns (nil, syscall.EINVAL).
    86  func UTF16FromString(s string) ([]uint16, error) {
    87  	return syscall.UTF16FromString(s)
    88  }
    89  
    90  // UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,
    91  // with a terminating NUL and any bytes after the NUL removed.
    92  func UTF16ToString(s []uint16) string {
    93  	return syscall.UTF16ToString(s)
    94  }
    95  
    96  // StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead.
    97  // If s contains a NUL byte this function panics instead of
    98  // returning an error.
    99  func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] }
   100  
   101  // UTF16PtrFromString returns pointer to the UTF-16 encoding of
   102  // the UTF-8 string s, with a terminating NUL added. If s
   103  // contains a NUL byte at any location, it returns (nil, syscall.EINVAL).
   104  func UTF16PtrFromString(s string) (*uint16, error) {
   105  	a, err := UTF16FromString(s)
   106  	if err != nil {
   107  		return nil, err
   108  	}
   109  	return &a[0], nil
   110  }
   111  
   112  // UTF16PtrToString takes a pointer to a UTF-16 sequence and returns the corresponding UTF-8 encoded string.
   113  // If the pointer is nil, it returns the empty string. It assumes that the UTF-16 sequence is terminated
   114  // at a zero word; if the zero word is not present, the program may crash.
   115  func UTF16PtrToString(p *uint16) string {
   116  	if p == nil {
   117  		return ""
   118  	}
   119  	if *p == 0 {
   120  		return ""
   121  	}
   122  
   123  	// Find NUL terminator.
   124  	n := 0
   125  	for ptr := unsafe.Pointer(p); *(*uint16)(ptr) != 0; n++ {
   126  		ptr = unsafe.Pointer(uintptr(ptr) + unsafe.Sizeof(*p))
   127  	}
   128  
   129  	return string(utf16.Decode(unsafe.Slice(p, n)))
   130  }
   131  
   132  func Getpagesize() int { return 4096 }
   133  
   134  // NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
   135  // This is useful when interoperating with Windows code requiring callbacks.
   136  // The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
   137  func NewCallback(fn interface{}) uintptr {
   138  	return syscall.NewCallback(fn)
   139  }
   140  
   141  // NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention.
   142  // This is useful when interoperating with Windows code requiring callbacks.
   143  // The argument is expected to be a function with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
   144  func NewCallbackCDecl(fn interface{}) uintptr {
   145  	return syscall.NewCallbackCDecl(fn)
   146  }
   147  
   148  // windows api calls
   149  
   150  //sys	GetLastError() (lasterr error)
   151  //sys	LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW
   152  //sys	LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW
   153  //sys	FreeLibrary(handle Handle) (err error)
   154  //sys	GetProcAddress(module Handle, procname string) (proc uintptr, err error)
   155  //sys	GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW
   156  //sys	GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW
   157  //sys	SetDefaultDllDirectories(directoryFlags uint32) (err error)
   158  //sys	AddDllDirectory(path *uint16) (cookie uintptr, err error) = kernel32.AddDllDirectory
   159  //sys	RemoveDllDirectory(cookie uintptr) (err error) = kernel32.RemoveDllDirectory
   160  //sys	SetDllDirectory(path string) (err error) = kernel32.SetDllDirectoryW
   161  //sys	GetVersion() (ver uint32, err error)
   162  //sys	FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW
   163  //sys	ExitProcess(exitcode uint32)
   164  //sys	IsWow64Process(handle Handle, isWow64 *bool) (err error) = IsWow64Process
   165  //sys	IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) = IsWow64Process2?
   166  //sys	CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
   167  //sys	CreateNamedPipe(name *uint16, flags uint32, pipeMode uint32, maxInstances uint32, outSize uint32, inSize uint32, defaultTimeout uint32, sa *SecurityAttributes) (handle Handle, err error)  [failretval==InvalidHandle] = CreateNamedPipeW
   168  //sys	ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error)
   169  //sys	GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error)
   170  //sys	GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW
   171  //sys	SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState
   172  //sys	readFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = ReadFile
   173  //sys	writeFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = WriteFile
   174  //sys	GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error)
   175  //sys	SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]
   176  //sys	CloseHandle(handle Handle) (err error)
   177  //sys	GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle]
   178  //sys	SetStdHandle(stdhandle uint32, handle Handle) (err error)
   179  //sys	findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW
   180  //sys	findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW
   181  //sys	FindClose(handle Handle) (err error)
   182  //sys	GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
   183  //sys	GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error)
   184  //sys	SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error)
   185  //sys	GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW
   186  //sys	SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW
   187  //sys	CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW
   188  //sys	RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW
   189  //sys	DeleteFile(path *uint16) (err error) = DeleteFileW
   190  //sys	MoveFile(from *uint16, to *uint16) (err error) = MoveFileW
   191  //sys	MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW
   192  //sys	LockFileEx(file Handle, flags uint32, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)
   193  //sys	UnlockFileEx(file Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)
   194  //sys	GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW
   195  //sys	GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW
   196  //sys	SetEndOfFile(handle Handle) (err error)
   197  //sys	GetSystemTimeAsFileTime(time *Filetime)
   198  //sys	GetSystemTimePreciseAsFileTime(time *Filetime)
   199  //sys	GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]
   200  //sys	CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uintptr, threadcnt uint32) (handle Handle, err error)
   201  //sys	GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uintptr, overlapped **Overlapped, timeout uint32) (err error)
   202  //sys	PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uintptr, overlapped *Overlapped) (err error)
   203  //sys	CancelIo(s Handle) (err error)
   204  //sys	CancelIoEx(s Handle, o *Overlapped) (err error)
   205  //sys	CreateProcess(appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) = CreateProcessW
   206  //sys	CreateProcessAsUser(token Token, appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) = advapi32.CreateProcessAsUserW
   207  //sys   initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrcount uint32, flags uint32, size *uintptr) (err error) = InitializeProcThreadAttributeList
   208  //sys   deleteProcThreadAttributeList(attrlist *ProcThreadAttributeList) = DeleteProcThreadAttributeList
   209  //sys   updateProcThreadAttribute(attrlist *ProcThreadAttributeList, flags uint32, attr uintptr, value unsafe.Pointer, size uintptr, prevvalue unsafe.Pointer, returnedsize *uintptr) (err error) = UpdateProcThreadAttribute
   210  //sys	OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error)
   211  //sys	ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW
   212  //sys	GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId
   213  //sys	GetShellWindow() (shellWindow HWND) = user32.GetShellWindow
   214  //sys	MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW
   215  //sys	ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx
   216  //sys	shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath
   217  //sys	TerminateProcess(handle Handle, exitcode uint32) (err error)
   218  //sys	GetExitCodeProcess(handle Handle, exitcode *uint32) (err error)
   219  //sys	getStartupInfo(startupInfo *StartupInfo) = GetStartupInfoW
   220  //sys	GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error)
   221  //sys	DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)
   222  //sys	WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]
   223  //sys	waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects
   224  //sys	GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW
   225  //sys	CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error)
   226  //sys	GetFileType(filehandle Handle) (n uint32, err error)
   227  //sys	CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW
   228  //sys	CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext
   229  //sys	CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom
   230  //sys	GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW
   231  //sys	FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW
   232  //sys	GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW
   233  //sys	SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW
   234  //sys	ExpandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) = kernel32.ExpandEnvironmentStringsW
   235  //sys	CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock
   236  //sys	DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock
   237  //sys	getTickCount64() (ms uint64) = kernel32.GetTickCount64
   238  //sys   GetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
   239  //sys	SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
   240  //sys	GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
   241  //sys	SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW
   242  //sys	GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW
   243  //sys	GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
   244  //sys	commandLineToArgv(cmd *uint16, argc *int32) (argv **uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW
   245  //sys	LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0]
   246  //sys	LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error)
   247  //sys	SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error)
   248  //sys	FlushFileBuffers(handle Handle) (err error)
   249  //sys	GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW
   250  //sys	GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW
   251  //sys	GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW
   252  //sys	GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW
   253  //sys	CreateFileMapping(fhandle Handle, sa *SecurityAttributes, prot uint32, maxSizeHigh uint32, maxSizeLow uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateFileMappingW
   254  //sys	MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error)
   255  //sys	UnmapViewOfFile(addr uintptr) (err error)
   256  //sys	FlushViewOfFile(addr uintptr, length uintptr) (err error)
   257  //sys	VirtualLock(addr uintptr, length uintptr) (err error)
   258  //sys	VirtualUnlock(addr uintptr, length uintptr) (err error)
   259  //sys	VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc
   260  //sys	VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree
   261  //sys	VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect
   262  //sys	VirtualProtectEx(process Handle, address uintptr, size uintptr, newProtect uint32, oldProtect *uint32) (err error) = kernel32.VirtualProtectEx
   263  //sys	VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQuery
   264  //sys	VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQueryEx
   265  //sys	ReadProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesRead *uintptr) (err error) = kernel32.ReadProcessMemory
   266  //sys	WriteProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesWritten *uintptr) (err error) = kernel32.WriteProcessMemory
   267  //sys	TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile
   268  //sys	ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW
   269  //sys	FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW
   270  //sys	FindNextChangeNotification(handle Handle) (err error)
   271  //sys	FindCloseChangeNotification(handle Handle) (err error)
   272  //sys	CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW
   273  //sys	CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore
   274  //sys	CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore
   275  //sys	CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore
   276  //sys	CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore
   277  //sys	CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore
   278  //sys	CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext
   279  //sys	PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore
   280  //sys	CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain
   281  //sys	CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain
   282  //sys	CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext
   283  //sys	CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext
   284  //sys	CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy
   285  //sys	CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW
   286  //sys	CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension
   287  //sys   CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore
   288  //sys   CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore
   289  //sys   CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey
   290  //sys	CryptQueryObject(objectType uint32, object unsafe.Pointer, expectedContentTypeFlags uint32, expectedFormatTypeFlags uint32, flags uint32, msgAndCertEncodingType *uint32, contentType *uint32, formatType *uint32, certStore *Handle, msg *Handle, context *unsafe.Pointer) (err error) = crypt32.CryptQueryObject
   291  //sys	CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject
   292  //sys	CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData
   293  //sys	CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData
   294  //sys	WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx
   295  //sys	RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW
   296  //sys	RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey
   297  //sys	RegQueryInfoKey(key Handle, class *uint16, classLen *uint32, reserved *uint32, subkeysLen *uint32, maxSubkeyLen *uint32, maxClassLen *uint32, valuesLen *uint32, maxValueNameLen *uint32, maxValueLen *uint32, saLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegQueryInfoKeyW
   298  //sys	RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW
   299  //sys	RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW
   300  //sys	RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue
   301  //sys	GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId
   302  //sys	ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId
   303  //sys	ClosePseudoConsole(console Handle) = kernel32.ClosePseudoConsole
   304  //sys	createPseudoConsole(size uint32, in Handle, out Handle, flags uint32, pconsole *Handle) (hr error) = kernel32.CreatePseudoConsole
   305  //sys	GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode
   306  //sys	SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode
   307  //sys	GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo
   308  //sys	setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition
   309  //sys	WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
   310  //sys	ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
   311  //sys	resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole
   312  //sys	CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot
   313  //sys	Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW
   314  //sys	Module32Next(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32NextW
   315  //sys	Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW
   316  //sys	Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW
   317  //sys	Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error)
   318  //sys	Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error)
   319  //sys	DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error)
   320  // This function returns 1 byte BOOLEAN rather than the 4 byte BOOL.
   321  //sys	CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW
   322  //sys	CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW
   323  //sys	GetCurrentThreadId() (id uint32)
   324  //sys	CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW
   325  //sys	CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW
   326  //sys	OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW
   327  //sys	SetEvent(event Handle) (err error) = kernel32.SetEvent
   328  //sys	ResetEvent(event Handle) (err error) = kernel32.ResetEvent
   329  //sys	PulseEvent(event Handle) (err error) = kernel32.PulseEvent
   330  //sys	CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW
   331  //sys	CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW
   332  //sys	OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW
   333  //sys	ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex
   334  //sys	SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx
   335  //sys	CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW
   336  //sys	AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject
   337  //sys	TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject
   338  //sys	SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode
   339  //sys	ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread
   340  //sys	SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass
   341  //sys	GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass
   342  //sys	QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject
   343  //sys	SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error)
   344  //sys	GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error)
   345  //sys	GetProcessId(process Handle) (id uint32, err error)
   346  //sys	QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW
   347  //sys	OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error)
   348  //sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost
   349  //sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)
   350  //sys	SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)
   351  //sys	GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
   352  //sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)
   353  //sys	GetActiveProcessorCount(groupNumber uint16) (ret uint32)
   354  //sys	GetMaximumProcessorCount(groupNumber uint16) (ret uint32)
   355  //sys	EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows
   356  //sys	EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows
   357  //sys	GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW
   358  //sys	GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow
   359  //sys	GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow
   360  //sys	IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow
   361  //sys	IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode
   362  //sys	IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible
   363  //sys	GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo
   364  //sys	GetLargePageMinimum() (size uintptr)
   365  
   366  // Volume Management Functions
   367  //sys	DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW
   368  //sys	DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW
   369  //sys	FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW
   370  //sys	FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW
   371  //sys	FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW
   372  //sys	FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW
   373  //sys	FindVolumeClose(findVolume Handle) (err error)
   374  //sys	FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error)
   375  //sys	GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW
   376  //sys	GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW
   377  //sys	GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0]
   378  //sys	GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW
   379  //sys	GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW
   380  //sys	GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW
   381  //sys	GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW
   382  //sys	GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW
   383  //sys	GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW
   384  //sys	QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW
   385  //sys	SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW
   386  //sys	SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW
   387  //sys	InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW
   388  //sys	SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters
   389  //sys	GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters
   390  //sys	clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString
   391  //sys	stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2
   392  //sys	coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid
   393  //sys	CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree
   394  //sys	CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx
   395  //sys	CoUninitialize() = ole32.CoUninitialize
   396  //sys	CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject
   397  //sys	getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages
   398  //sys	getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages
   399  //sys	getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages
   400  //sys	getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages
   401  //sys	findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW
   402  //sys	SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource
   403  //sys	LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource
   404  //sys	LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource
   405  
   406  // Version APIs
   407  //sys	GetFileVersionInfoSize(filename string, zeroHandle *Handle) (bufSize uint32, err error) = version.GetFileVersionInfoSizeW
   408  //sys	GetFileVersionInfo(filename string, handle uint32, bufSize uint32, buffer unsafe.Pointer) (err error) = version.GetFileVersionInfoW
   409  //sys	VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW
   410  
   411  // Process Status API (PSAPI)
   412  //sys	enumProcesses(processIds *uint32, nSize uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses
   413  //sys	EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules
   414  //sys	EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx
   415  //sys	GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation
   416  //sys	GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW
   417  //sys	GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW
   418  //sys   QueryWorkingSetEx(process Handle, pv uintptr, cb uint32) (err error) = psapi.QueryWorkingSetEx
   419  
   420  // NT Native APIs
   421  //sys	rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb
   422  //sys	rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion
   423  //sys	rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers
   424  //sys	RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb
   425  //sys	RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString
   426  //sys	RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString
   427  //sys	NtCreateFile(handle *Handle, access uint32, oa *OBJECT_ATTRIBUTES, iosb *IO_STATUS_BLOCK, allocationSize *int64, attributes uint32, share uint32, disposition uint32, options uint32, eabuffer uintptr, ealength uint32) (ntstatus error) = ntdll.NtCreateFile
   428  //sys	NtCreateNamedPipeFile(pipe *Handle, access uint32, oa *OBJECT_ATTRIBUTES, iosb *IO_STATUS_BLOCK, share uint32, disposition uint32, options uint32, typ uint32, readMode uint32, completionMode uint32, maxInstances uint32, inboundQuota uint32, outputQuota uint32, timeout *int64) (ntstatus error) = ntdll.NtCreateNamedPipeFile
   429  //sys	NtSetInformationFile(handle Handle, iosb *IO_STATUS_BLOCK, inBuffer *byte, inBufferLen uint32, class uint32) (ntstatus error) = ntdll.NtSetInformationFile
   430  //sys	RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus
   431  //sys	RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus
   432  //sys	RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl
   433  //sys	NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess
   434  //sys	NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess
   435  //sys	NtQuerySystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQuerySystemInformation
   436  //sys	NtSetSystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32) (ntstatus error) = ntdll.NtSetSystemInformation
   437  //sys	RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable
   438  //sys	RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable
   439  
   440  // Desktop Window Manager API (Dwmapi)
   441  //sys	DwmGetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmGetWindowAttribute
   442  //sys	DwmSetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmSetWindowAttribute
   443  
   444  // Windows Multimedia API
   445  //sys TimeBeginPeriod (period uint32) (err error) [failretval != 0] = winmm.timeBeginPeriod
   446  //sys TimeEndPeriod (period uint32) (err error) [failretval != 0] = winmm.timeEndPeriod
   447  
   448  // syscall interface implementation for other packages
   449  
   450  // GetCurrentProcess returns the handle for the current process.
   451  // It is a pseudo handle that does not need to be closed.
   452  // The returned error is always nil.
   453  //
   454  // Deprecated: use CurrentProcess for the same Handle without the nil
   455  // error.
   456  func GetCurrentProcess() (Handle, error) {
   457  	return CurrentProcess(), nil
   458  }
   459  
   460  // CurrentProcess returns the handle for the current process.
   461  // It is a pseudo handle that does not need to be closed.
   462  func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) }
   463  
   464  // GetCurrentThread returns the handle for the current thread.
   465  // It is a pseudo handle that does not need to be closed.
   466  // The returned error is always nil.
   467  //
   468  // Deprecated: use CurrentThread for the same Handle without the nil
   469  // error.
   470  func GetCurrentThread() (Handle, error) {
   471  	return CurrentThread(), nil
   472  }
   473  
   474  // CurrentThread returns the handle for the current thread.
   475  // It is a pseudo handle that does not need to be closed.
   476  func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) }
   477  
   478  // GetProcAddressByOrdinal retrieves the address of the exported
   479  // function from module by ordinal.
   480  func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) {
   481  	r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0)
   482  	proc = uintptr(r0)
   483  	if proc == 0 {
   484  		err = errnoErr(e1)
   485  	}
   486  	return
   487  }
   488  
   489  func Exit(code int) { ExitProcess(uint32(code)) }
   490  
   491  func makeInheritSa() *SecurityAttributes {
   492  	var sa SecurityAttributes
   493  	sa.Length = uint32(unsafe.Sizeof(sa))
   494  	sa.InheritHandle = 1
   495  	return &sa
   496  }
   497  
   498  func Open(path string, mode int, perm uint32) (fd Handle, err error) {
   499  	if len(path) == 0 {
   500  		return InvalidHandle, ERROR_FILE_NOT_FOUND
   501  	}
   502  	pathp, err := UTF16PtrFromString(path)
   503  	if err != nil {
   504  		return InvalidHandle, err
   505  	}
   506  	var access uint32
   507  	switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
   508  	case O_RDONLY:
   509  		access = GENERIC_READ
   510  	case O_WRONLY:
   511  		access = GENERIC_WRITE
   512  	case O_RDWR:
   513  		access = GENERIC_READ | GENERIC_WRITE
   514  	}
   515  	if mode&O_CREAT != 0 {
   516  		access |= GENERIC_WRITE
   517  	}
   518  	if mode&O_APPEND != 0 {
   519  		access &^= GENERIC_WRITE
   520  		access |= FILE_APPEND_DATA
   521  	}
   522  	sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE)
   523  	var sa *SecurityAttributes
   524  	if mode&O_CLOEXEC == 0 {
   525  		sa = makeInheritSa()
   526  	}
   527  	var createmode uint32
   528  	switch {
   529  	case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):
   530  		createmode = CREATE_NEW
   531  	case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):
   532  		createmode = CREATE_ALWAYS
   533  	case mode&O_CREAT == O_CREAT:
   534  		createmode = OPEN_ALWAYS
   535  	case mode&O_TRUNC == O_TRUNC:
   536  		createmode = TRUNCATE_EXISTING
   537  	default:
   538  		createmode = OPEN_EXISTING
   539  	}
   540  	var attrs uint32 = FILE_ATTRIBUTE_NORMAL
   541  	if perm&S_IWRITE == 0 {
   542  		attrs = FILE_ATTRIBUTE_READONLY
   543  	}
   544  	h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0)
   545  	return h, e
   546  }
   547  
   548  func Read(fd Handle, p []byte) (n int, err error) {
   549  	var done uint32
   550  	e := ReadFile(fd, p, &done, nil)
   551  	if e != nil {
   552  		if e == ERROR_BROKEN_PIPE {
   553  			// NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin
   554  			return 0, nil
   555  		}
   556  		return 0, e
   557  	}
   558  	return int(done), nil
   559  }
   560  
   561  func Write(fd Handle, p []byte) (n int, err error) {
   562  	if raceenabled {
   563  		raceReleaseMerge(unsafe.Pointer(&ioSync))
   564  	}
   565  	var done uint32
   566  	e := WriteFile(fd, p, &done, nil)
   567  	if e != nil {
   568  		return 0, e
   569  	}
   570  	return int(done), nil
   571  }
   572  
   573  func ReadFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {
   574  	err := readFile(fd, p, done, overlapped)
   575  	if raceenabled {
   576  		if *done > 0 {
   577  			raceWriteRange(unsafe.Pointer(&p[0]), int(*done))
   578  		}
   579  		raceAcquire(unsafe.Pointer(&ioSync))
   580  	}
   581  	return err
   582  }
   583  
   584  func WriteFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {
   585  	if raceenabled {
   586  		raceReleaseMerge(unsafe.Pointer(&ioSync))
   587  	}
   588  	err := writeFile(fd, p, done, overlapped)
   589  	if raceenabled && *done > 0 {
   590  		raceReadRange(unsafe.Pointer(&p[0]), int(*done))
   591  	}
   592  	return err
   593  }
   594  
   595  var ioSync int64
   596  
   597  func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) {
   598  	var w uint32
   599  	switch whence {
   600  	case 0:
   601  		w = FILE_BEGIN
   602  	case 1:
   603  		w = FILE_CURRENT
   604  	case 2:
   605  		w = FILE_END
   606  	}
   607  	hi := int32(offset >> 32)
   608  	lo := int32(offset)
   609  	// use GetFileType to check pipe, pipe can't do seek
   610  	ft, _ := GetFileType(fd)
   611  	if ft == FILE_TYPE_PIPE {
   612  		return 0, syscall.EPIPE
   613  	}
   614  	rlo, e := SetFilePointer(fd, lo, &hi, w)
   615  	if e != nil {
   616  		return 0, e
   617  	}
   618  	return int64(hi)<<32 + int64(rlo), nil
   619  }
   620  
   621  func Close(fd Handle) (err error) {
   622  	return CloseHandle(fd)
   623  }
   624  
   625  var (
   626  	Stdin  = getStdHandle(STD_INPUT_HANDLE)
   627  	Stdout = getStdHandle(STD_OUTPUT_HANDLE)
   628  	Stderr = getStdHandle(STD_ERROR_HANDLE)
   629  )
   630  
   631  func getStdHandle(stdhandle uint32) (fd Handle) {
   632  	r, _ := GetStdHandle(stdhandle)
   633  	return r
   634  }
   635  
   636  const ImplementsGetwd = true
   637  
   638  func Getwd() (wd string, err error) {
   639  	b := make([]uint16, 300)
   640  	n, e := GetCurrentDirectory(uint32(len(b)), &b[0])
   641  	if e != nil {
   642  		return "", e
   643  	}
   644  	return string(utf16.Decode(b[0:n])), nil
   645  }
   646  
   647  func Chdir(path string) (err error) {
   648  	pathp, err := UTF16PtrFromString(path)
   649  	if err != nil {
   650  		return err
   651  	}
   652  	return SetCurrentDirectory(pathp)
   653  }
   654  
   655  func Mkdir(path string, mode uint32) (err error) {
   656  	pathp, err := UTF16PtrFromString(path)
   657  	if err != nil {
   658  		return err
   659  	}
   660  	return CreateDirectory(pathp, nil)
   661  }
   662  
   663  func Rmdir(path string) (err error) {
   664  	pathp, err := UTF16PtrFromString(path)
   665  	if err != nil {
   666  		return err
   667  	}
   668  	return RemoveDirectory(pathp)
   669  }
   670  
   671  func Unlink(path string) (err error) {
   672  	pathp, err := UTF16PtrFromString(path)
   673  	if err != nil {
   674  		return err
   675  	}
   676  	return DeleteFile(pathp)
   677  }
   678  
   679  func Rename(oldpath, newpath string) (err error) {
   680  	from, err := UTF16PtrFromString(oldpath)
   681  	if err != nil {
   682  		return err
   683  	}
   684  	to, err := UTF16PtrFromString(newpath)
   685  	if err != nil {
   686  		return err
   687  	}
   688  	return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING)
   689  }
   690  
   691  func ComputerName() (name string, err error) {
   692  	var n uint32 = MAX_COMPUTERNAME_LENGTH + 1
   693  	b := make([]uint16, n)
   694  	e := GetComputerName(&b[0], &n)
   695  	if e != nil {
   696  		return "", e
   697  	}
   698  	return string(utf16.Decode(b[0:n])), nil
   699  }
   700  
   701  func DurationSinceBoot() time.Duration {
   702  	return time.Duration(getTickCount64()) * time.Millisecond
   703  }
   704  
   705  func Ftruncate(fd Handle, length int64) (err error) {
   706  	curoffset, e := Seek(fd, 0, 1)
   707  	if e != nil {
   708  		return e
   709  	}
   710  	defer Seek(fd, curoffset, 0)
   711  	_, e = Seek(fd, length, 0)
   712  	if e != nil {
   713  		return e
   714  	}
   715  	e = SetEndOfFile(fd)
   716  	if e != nil {
   717  		return e
   718  	}
   719  	return nil
   720  }
   721  
   722  func Gettimeofday(tv *Timeval) (err error) {
   723  	var ft Filetime
   724  	GetSystemTimeAsFileTime(&ft)
   725  	*tv = NsecToTimeval(ft.Nanoseconds())
   726  	return nil
   727  }
   728  
   729  func Pipe(p []Handle) (err error) {
   730  	if len(p) != 2 {
   731  		return syscall.EINVAL
   732  	}
   733  	var r, w Handle
   734  	e := CreatePipe(&r, &w, makeInheritSa(), 0)
   735  	if e != nil {
   736  		return e
   737  	}
   738  	p[0] = r
   739  	p[1] = w
   740  	return nil
   741  }
   742  
   743  func Utimes(path string, tv []Timeval) (err error) {
   744  	if len(tv) != 2 {
   745  		return syscall.EINVAL
   746  	}
   747  	pathp, e := UTF16PtrFromString(path)
   748  	if e != nil {
   749  		return e
   750  	}
   751  	h, e := CreateFile(pathp,
   752  		FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,
   753  		OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)
   754  	if e != nil {
   755  		return e
   756  	}
   757  	defer CloseHandle(h)
   758  	a := NsecToFiletime(tv[0].Nanoseconds())
   759  	w := NsecToFiletime(tv[1].Nanoseconds())
   760  	return SetFileTime(h, nil, &a, &w)
   761  }
   762  
   763  func UtimesNano(path string, ts []Timespec) (err error) {
   764  	if len(ts) != 2 {
   765  		return syscall.EINVAL
   766  	}
   767  	pathp, e := UTF16PtrFromString(path)
   768  	if e != nil {
   769  		return e
   770  	}
   771  	h, e := CreateFile(pathp,
   772  		FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,
   773  		OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)
   774  	if e != nil {
   775  		return e
   776  	}
   777  	defer CloseHandle(h)
   778  	a := NsecToFiletime(TimespecToNsec(ts[0]))
   779  	w := NsecToFiletime(TimespecToNsec(ts[1]))
   780  	return SetFileTime(h, nil, &a, &w)
   781  }
   782  
   783  func Fsync(fd Handle) (err error) {
   784  	return FlushFileBuffers(fd)
   785  }
   786  
   787  func Chmod(path string, mode uint32) (err error) {
   788  	p, e := UTF16PtrFromString(path)
   789  	if e != nil {
   790  		return e
   791  	}
   792  	attrs, e := GetFileAttributes(p)
   793  	if e != nil {
   794  		return e
   795  	}
   796  	if mode&S_IWRITE != 0 {
   797  		attrs &^= FILE_ATTRIBUTE_READONLY
   798  	} else {
   799  		attrs |= FILE_ATTRIBUTE_READONLY
   800  	}
   801  	return SetFileAttributes(p, attrs)
   802  }
   803  
   804  func LoadGetSystemTimePreciseAsFileTime() error {
   805  	return procGetSystemTimePreciseAsFileTime.Find()
   806  }
   807  
   808  func LoadCancelIoEx() error {
   809  	return procCancelIoEx.Find()
   810  }
   811  
   812  func LoadSetFileCompletionNotificationModes() error {
   813  	return procSetFileCompletionNotificationModes.Find()
   814  }
   815  
   816  func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) {
   817  	// Every other win32 array API takes arguments as "pointer, count", except for this function. So we
   818  	// can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore
   819  	// trivially stub this ourselves.
   820  
   821  	var handlePtr *Handle
   822  	if len(handles) > 0 {
   823  		handlePtr = &handles[0]
   824  	}
   825  	return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds)
   826  }
   827  
   828  // net api calls
   829  
   830  const socket_error = uintptr(^uint32(0))
   831  
   832  //sys	WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup
   833  //sys	WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup
   834  //sys	WSAIoctl(s Handle, iocc uint32, inbuf *byte, cbif uint32, outbuf *byte, cbob uint32, cbbr *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) [failretval==socket_error] = ws2_32.WSAIoctl
   835  //sys	WSALookupServiceBegin(querySet *WSAQUERYSET, flags uint32, handle *Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceBeginW
   836  //sys	WSALookupServiceNext(handle Handle, flags uint32, size *int32, querySet *WSAQUERYSET) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceNextW
   837  //sys	WSALookupServiceEnd(handle Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceEnd
   838  //sys	socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket
   839  //sys	sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto
   840  //sys	recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom
   841  //sys	Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt
   842  //sys	Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt
   843  //sys	bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind
   844  //sys	connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect
   845  //sys	getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname
   846  //sys	getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername
   847  //sys	listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen
   848  //sys	shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown
   849  //sys	Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket
   850  //sys	AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx
   851  //sys	GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs
   852  //sys	WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv
   853  //sys	WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend
   854  //sys	WSARecvFrom(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32,  from *RawSockaddrAny, fromlen *int32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecvFrom
   855  //sys	WSASendTo(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to *RawSockaddrAny, tolen int32,  overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASendTo
   856  //sys	WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW
   857  //sys	GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname
   858  //sys	GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname
   859  //sys	Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs
   860  //sys	GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname
   861  //sys	DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W
   862  //sys	DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree
   863  //sys	DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W
   864  //sys	GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW
   865  //sys	FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW
   866  //sys	GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry
   867  //sys	GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo
   868  //sys	SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes
   869  //sys	WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW
   870  //sys	WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult
   871  //sys	GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
   872  //sys	GetACP() (acp uint32) = kernel32.GetACP
   873  //sys	MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
   874  //sys	getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx
   875  
   876  // For testing: clients can set this flag to force
   877  // creation of IPv6 sockets to return EAFNOSUPPORT.
   878  var SocketDisableIPv6 bool
   879  
   880  type RawSockaddrInet4 struct {
   881  	Family uint16
   882  	Port   uint16
   883  	Addr   [4]byte /* in_addr */
   884  	Zero   [8]uint8
   885  }
   886  
   887  type RawSockaddrInet6 struct {
   888  	Family   uint16
   889  	Port     uint16
   890  	Flowinfo uint32
   891  	Addr     [16]byte /* in6_addr */
   892  	Scope_id uint32
   893  }
   894  
   895  type RawSockaddr struct {
   896  	Family uint16
   897  	Data   [14]int8
   898  }
   899  
   900  type RawSockaddrAny struct {
   901  	Addr RawSockaddr
   902  	Pad  [100]int8
   903  }
   904  
   905  type Sockaddr interface {
   906  	sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs
   907  }
   908  
   909  type SockaddrInet4 struct {
   910  	Port int
   911  	Addr [4]byte
   912  	raw  RawSockaddrInet4
   913  }
   914  
   915  func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) {
   916  	if sa.Port < 0 || sa.Port > 0xFFFF {
   917  		return nil, 0, syscall.EINVAL
   918  	}
   919  	sa.raw.Family = AF_INET
   920  	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
   921  	p[0] = byte(sa.Port >> 8)
   922  	p[1] = byte(sa.Port)
   923  	sa.raw.Addr = sa.Addr
   924  	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
   925  }
   926  
   927  type SockaddrInet6 struct {
   928  	Port   int
   929  	ZoneId uint32
   930  	Addr   [16]byte
   931  	raw    RawSockaddrInet6
   932  }
   933  
   934  func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) {
   935  	if sa.Port < 0 || sa.Port > 0xFFFF {
   936  		return nil, 0, syscall.EINVAL
   937  	}
   938  	sa.raw.Family = AF_INET6
   939  	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
   940  	p[0] = byte(sa.Port >> 8)
   941  	p[1] = byte(sa.Port)
   942  	sa.raw.Scope_id = sa.ZoneId
   943  	sa.raw.Addr = sa.Addr
   944  	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
   945  }
   946  
   947  type RawSockaddrUnix struct {
   948  	Family uint16
   949  	Path   [UNIX_PATH_MAX]int8
   950  }
   951  
   952  type SockaddrUnix struct {
   953  	Name string
   954  	raw  RawSockaddrUnix
   955  }
   956  
   957  func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {
   958  	name := sa.Name
   959  	n := len(name)
   960  	if n > len(sa.raw.Path) {
   961  		return nil, 0, syscall.EINVAL
   962  	}
   963  	if n == len(sa.raw.Path) && name[0] != '@' {
   964  		return nil, 0, syscall.EINVAL
   965  	}
   966  	sa.raw.Family = AF_UNIX
   967  	for i := 0; i < n; i++ {
   968  		sa.raw.Path[i] = int8(name[i])
   969  	}
   970  	// length is family (uint16), name, NUL.
   971  	sl := int32(2)
   972  	if n > 0 {
   973  		sl += int32(n) + 1
   974  	}
   975  	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
   976  		// Check sl > 3 so we don't change unnamed socket behavior.
   977  		sa.raw.Path[0] = 0
   978  		// Don't count trailing NUL for abstract address.
   979  		sl--
   980  	}
   981  
   982  	return unsafe.Pointer(&sa.raw), sl, nil
   983  }
   984  
   985  type RawSockaddrBth struct {
   986  	AddressFamily  [2]byte
   987  	BtAddr         [8]byte
   988  	ServiceClassId [16]byte
   989  	Port           [4]byte
   990  }
   991  
   992  type SockaddrBth struct {
   993  	BtAddr         uint64
   994  	ServiceClassId GUID
   995  	Port           uint32
   996  
   997  	raw RawSockaddrBth
   998  }
   999  
  1000  func (sa *SockaddrBth) sockaddr() (unsafe.Pointer, int32, error) {
  1001  	family := AF_BTH
  1002  	sa.raw = RawSockaddrBth{
  1003  		AddressFamily:  *(*[2]byte)(unsafe.Pointer(&family)),
  1004  		BtAddr:         *(*[8]byte)(unsafe.Pointer(&sa.BtAddr)),
  1005  		Port:           *(*[4]byte)(unsafe.Pointer(&sa.Port)),
  1006  		ServiceClassId: *(*[16]byte)(unsafe.Pointer(&sa.ServiceClassId)),
  1007  	}
  1008  	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
  1009  }
  1010  
  1011  func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {
  1012  	switch rsa.Addr.Family {
  1013  	case AF_UNIX:
  1014  		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
  1015  		sa := new(SockaddrUnix)
  1016  		if pp.Path[0] == 0 {
  1017  			// "Abstract" Unix domain socket.
  1018  			// Rewrite leading NUL as @ for textual display.
  1019  			// (This is the standard convention.)
  1020  			// Not friendly to overwrite in place,
  1021  			// but the callers below don't care.
  1022  			pp.Path[0] = '@'
  1023  		}
  1024  
  1025  		// Assume path ends at NUL.
  1026  		// This is not technically the Linux semantics for
  1027  		// abstract Unix domain sockets--they are supposed
  1028  		// to be uninterpreted fixed-size binary blobs--but
  1029  		// everyone uses this convention.
  1030  		n := 0
  1031  		for n < len(pp.Path) && pp.Path[n] != 0 {
  1032  			n++
  1033  		}
  1034  		sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n))
  1035  		return sa, nil
  1036  
  1037  	case AF_INET:
  1038  		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
  1039  		sa := new(SockaddrInet4)
  1040  		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
  1041  		sa.Port = int(p[0])<<8 + int(p[1])
  1042  		sa.Addr = pp.Addr
  1043  		return sa, nil
  1044  
  1045  	case AF_INET6:
  1046  		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
  1047  		sa := new(SockaddrInet6)
  1048  		p := (*[2]byte)(unsafe.Pointer(&pp.Port))
  1049  		sa.Port = int(p[0])<<8 + int(p[1])
  1050  		sa.ZoneId = pp.Scope_id
  1051  		sa.Addr = pp.Addr
  1052  		return sa, nil
  1053  	}
  1054  	return nil, syscall.EAFNOSUPPORT
  1055  }
  1056  
  1057  func Socket(domain, typ, proto int) (fd Handle, err error) {
  1058  	if domain == AF_INET6 && SocketDisableIPv6 {
  1059  		return InvalidHandle, syscall.EAFNOSUPPORT
  1060  	}
  1061  	return socket(int32(domain), int32(typ), int32(proto))
  1062  }
  1063  
  1064  func SetsockoptInt(fd Handle, level, opt int, value int) (err error) {
  1065  	v := int32(value)
  1066  	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v)))
  1067  }
  1068  
  1069  func Bind(fd Handle, sa Sockaddr) (err error) {
  1070  	ptr, n, err := sa.sockaddr()
  1071  	if err != nil {
  1072  		return err
  1073  	}
  1074  	return bind(fd, ptr, n)
  1075  }
  1076  
  1077  func Connect(fd Handle, sa Sockaddr) (err error) {
  1078  	ptr, n, err := sa.sockaddr()
  1079  	if err != nil {
  1080  		return err
  1081  	}
  1082  	return connect(fd, ptr, n)
  1083  }
  1084  
  1085  func GetBestInterfaceEx(sa Sockaddr, pdwBestIfIndex *uint32) (err error) {
  1086  	ptr, _, err := sa.sockaddr()
  1087  	if err != nil {
  1088  		return err
  1089  	}
  1090  	return getBestInterfaceEx(ptr, pdwBestIfIndex)
  1091  }
  1092  
  1093  func Getsockname(fd Handle) (sa Sockaddr, err error) {
  1094  	var rsa RawSockaddrAny
  1095  	l := int32(unsafe.Sizeof(rsa))
  1096  	if err = getsockname(fd, &rsa, &l); err != nil {
  1097  		return
  1098  	}
  1099  	return rsa.Sockaddr()
  1100  }
  1101  
  1102  func Getpeername(fd Handle) (sa Sockaddr, err error) {
  1103  	var rsa RawSockaddrAny
  1104  	l := int32(unsafe.Sizeof(rsa))
  1105  	if err = getpeername(fd, &rsa, &l); err != nil {
  1106  		return
  1107  	}
  1108  	return rsa.Sockaddr()
  1109  }
  1110  
  1111  func Listen(s Handle, n int) (err error) {
  1112  	return listen(s, int32(n))
  1113  }
  1114  
  1115  func Shutdown(fd Handle, how int) (err error) {
  1116  	return shutdown(fd, int32(how))
  1117  }
  1118  
  1119  func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) {
  1120  	var rsa unsafe.Pointer
  1121  	var l int32
  1122  	if to != nil {
  1123  		rsa, l, err = to.sockaddr()
  1124  		if err != nil {
  1125  			return err
  1126  		}
  1127  	}
  1128  	return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)
  1129  }
  1130  
  1131  func LoadGetAddrInfo() error {
  1132  	return procGetAddrInfoW.Find()
  1133  }
  1134  
  1135  var connectExFunc struct {
  1136  	once sync.Once
  1137  	addr uintptr
  1138  	err  error
  1139  }
  1140  
  1141  func LoadConnectEx() error {
  1142  	connectExFunc.once.Do(func() {
  1143  		var s Handle
  1144  		s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)
  1145  		if connectExFunc.err != nil {
  1146  			return
  1147  		}
  1148  		defer CloseHandle(s)
  1149  		var n uint32
  1150  		connectExFunc.err = WSAIoctl(s,
  1151  			SIO_GET_EXTENSION_FUNCTION_POINTER,
  1152  			(*byte)(unsafe.Pointer(&WSAID_CONNECTEX)),
  1153  			uint32(unsafe.Sizeof(WSAID_CONNECTEX)),
  1154  			(*byte)(unsafe.Pointer(&connectExFunc.addr)),
  1155  			uint32(unsafe.Sizeof(connectExFunc.addr)),
  1156  			&n, nil, 0)
  1157  	})
  1158  	return connectExFunc.err
  1159  }
  1160  
  1161  func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) {
  1162  	r1, _, e1 := syscall.Syscall9(connectExFunc.addr, 7, uintptr(s), uintptr(name), uintptr(namelen), uintptr(unsafe.Pointer(sendBuf)), uintptr(sendDataLen), uintptr(unsafe.Pointer(bytesSent)), uintptr(unsafe.Pointer(overlapped)), 0, 0)
  1163  	if r1 == 0 {
  1164  		if e1 != 0 {
  1165  			err = error(e1)
  1166  		} else {
  1167  			err = syscall.EINVAL
  1168  		}
  1169  	}
  1170  	return
  1171  }
  1172  
  1173  func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error {
  1174  	err := LoadConnectEx()
  1175  	if err != nil {
  1176  		return errorspkg.New("failed to find ConnectEx: " + err.Error())
  1177  	}
  1178  	ptr, n, err := sa.sockaddr()
  1179  	if err != nil {
  1180  		return err
  1181  	}
  1182  	return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped)
  1183  }
  1184  
  1185  var sendRecvMsgFunc struct {
  1186  	once     sync.Once
  1187  	sendAddr uintptr
  1188  	recvAddr uintptr
  1189  	err      error
  1190  }
  1191  
  1192  func loadWSASendRecvMsg() error {
  1193  	sendRecvMsgFunc.once.Do(func() {
  1194  		var s Handle
  1195  		s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
  1196  		if sendRecvMsgFunc.err != nil {
  1197  			return
  1198  		}
  1199  		defer CloseHandle(s)
  1200  		var n uint32
  1201  		sendRecvMsgFunc.err = WSAIoctl(s,
  1202  			SIO_GET_EXTENSION_FUNCTION_POINTER,
  1203  			(*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)),
  1204  			uint32(unsafe.Sizeof(WSAID_WSARECVMSG)),
  1205  			(*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)),
  1206  			uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)),
  1207  			&n, nil, 0)
  1208  		if sendRecvMsgFunc.err != nil {
  1209  			return
  1210  		}
  1211  		sendRecvMsgFunc.err = WSAIoctl(s,
  1212  			SIO_GET_EXTENSION_FUNCTION_POINTER,
  1213  			(*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)),
  1214  			uint32(unsafe.Sizeof(WSAID_WSASENDMSG)),
  1215  			(*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)),
  1216  			uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)),
  1217  			&n, nil, 0)
  1218  	})
  1219  	return sendRecvMsgFunc.err
  1220  }
  1221  
  1222  func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error {
  1223  	err := loadWSASendRecvMsg()
  1224  	if err != nil {
  1225  		return err
  1226  	}
  1227  	r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.sendAddr, 6, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(flags), uintptr(unsafe.Pointer(bytesSent)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine)))
  1228  	if r1 == socket_error {
  1229  		err = errnoErr(e1)
  1230  	}
  1231  	return err
  1232  }
  1233  
  1234  func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error {
  1235  	err := loadWSASendRecvMsg()
  1236  	if err != nil {
  1237  		return err
  1238  	}
  1239  	r1, _, e1 := syscall.Syscall6(sendRecvMsgFunc.recvAddr, 5, uintptr(fd), uintptr(unsafe.Pointer(msg)), uintptr(unsafe.Pointer(bytesReceived)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine)), 0)
  1240  	if r1 == socket_error {
  1241  		err = errnoErr(e1)
  1242  	}
  1243  	return err
  1244  }
  1245  
  1246  // Invented structures to support what package os expects.
  1247  type Rusage struct {
  1248  	CreationTime Filetime
  1249  	ExitTime     Filetime
  1250  	KernelTime   Filetime
  1251  	UserTime     Filetime
  1252  }
  1253  
  1254  type WaitStatus struct {
  1255  	ExitCode uint32
  1256  }
  1257  
  1258  func (w WaitStatus) Exited() bool { return true }
  1259  
  1260  func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) }
  1261  
  1262  func (w WaitStatus) Signal() Signal { return -1 }
  1263  
  1264  func (w WaitStatus) CoreDump() bool { return false }
  1265  
  1266  func (w WaitStatus) Stopped() bool { return false }
  1267  
  1268  func (w WaitStatus) Continued() bool { return false }
  1269  
  1270  func (w WaitStatus) StopSignal() Signal { return -1 }
  1271  
  1272  func (w WaitStatus) Signaled() bool { return false }
  1273  
  1274  func (w WaitStatus) TrapCause() int { return -1 }
  1275  
  1276  // Timespec is an invented structure on Windows, but here for
  1277  // consistency with the corresponding package for other operating systems.
  1278  type Timespec struct {
  1279  	Sec  int64
  1280  	Nsec int64
  1281  }
  1282  
  1283  func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
  1284  
  1285  func NsecToTimespec(nsec int64) (ts Timespec) {
  1286  	ts.Sec = nsec / 1e9
  1287  	ts.Nsec = nsec % 1e9
  1288  	return
  1289  }
  1290  
  1291  // TODO(brainman): fix all needed for net
  1292  
  1293  func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS }
  1294  
  1295  func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) {
  1296  	var rsa RawSockaddrAny
  1297  	l := int32(unsafe.Sizeof(rsa))
  1298  	n32, err := recvfrom(fd, p, int32(flags), &rsa, &l)
  1299  	n = int(n32)
  1300  	if err != nil {
  1301  		return
  1302  	}
  1303  	from, err = rsa.Sockaddr()
  1304  	return
  1305  }
  1306  
  1307  func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) {
  1308  	ptr, l, err := to.sockaddr()
  1309  	if err != nil {
  1310  		return err
  1311  	}
  1312  	return sendto(fd, p, int32(flags), ptr, l)
  1313  }
  1314  
  1315  func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS }
  1316  
  1317  // The Linger struct is wrong but we only noticed after Go 1.
  1318  // sysLinger is the real system call structure.
  1319  
  1320  // BUG(brainman): The definition of Linger is not appropriate for direct use
  1321  // with Setsockopt and Getsockopt.
  1322  // Use SetsockoptLinger instead.
  1323  
  1324  type Linger struct {
  1325  	Onoff  int32
  1326  	Linger int32
  1327  }
  1328  
  1329  type sysLinger struct {
  1330  	Onoff  uint16
  1331  	Linger uint16
  1332  }
  1333  
  1334  type IPMreq struct {
  1335  	Multiaddr [4]byte /* in_addr */
  1336  	Interface [4]byte /* in_addr */
  1337  }
  1338  
  1339  type IPv6Mreq struct {
  1340  	Multiaddr [16]byte /* in6_addr */
  1341  	Interface uint32
  1342  }
  1343  
  1344  func GetsockoptInt(fd Handle, level, opt int) (int, error) {
  1345  	v := int32(0)
  1346  	l := int32(unsafe.Sizeof(v))
  1347  	err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l)
  1348  	return int(v), err
  1349  }
  1350  
  1351  func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) {
  1352  	sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)}
  1353  	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys)))
  1354  }
  1355  
  1356  func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) {
  1357  	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4)
  1358  }
  1359  func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) {
  1360  	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq)))
  1361  }
  1362  func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) {
  1363  	return syscall.EWINDOWS
  1364  }
  1365  
  1366  func EnumProcesses(processIds []uint32, bytesReturned *uint32) error {
  1367  	// EnumProcesses syscall expects the size parameter to be in bytes, but the code generated with mksyscall uses
  1368  	// the length of the processIds slice instead. Hence, this wrapper function is added to fix the discrepancy.
  1369  	var p *uint32
  1370  	if len(processIds) > 0 {
  1371  		p = &processIds[0]
  1372  	}
  1373  	size := uint32(len(processIds) * 4)
  1374  	return enumProcesses(p, size, bytesReturned)
  1375  }
  1376  
  1377  func Getpid() (pid int) { return int(GetCurrentProcessId()) }
  1378  
  1379  func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) {
  1380  	// NOTE(rsc): The Win32finddata struct is wrong for the system call:
  1381  	// the two paths are each one uint16 short. Use the correct struct,
  1382  	// a win32finddata1, and then copy the results out.
  1383  	// There is no loss of expressivity here, because the final
  1384  	// uint16, if it is used, is supposed to be a NUL, and Go doesn't need that.
  1385  	// For Go 1.1, we might avoid the allocation of win32finddata1 here
  1386  	// by adding a final Bug [2]uint16 field to the struct and then
  1387  	// adjusting the fields in the result directly.
  1388  	var data1 win32finddata1
  1389  	handle, err = findFirstFile1(name, &data1)
  1390  	if err == nil {
  1391  		copyFindData(data, &data1)
  1392  	}
  1393  	return
  1394  }
  1395  
  1396  func FindNextFile(handle Handle, data *Win32finddata) (err error) {
  1397  	var data1 win32finddata1
  1398  	err = findNextFile1(handle, &data1)
  1399  	if err == nil {
  1400  		copyFindData(data, &data1)
  1401  	}
  1402  	return
  1403  }
  1404  
  1405  func getProcessEntry(pid int) (*ProcessEntry32, error) {
  1406  	snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)
  1407  	if err != nil {
  1408  		return nil, err
  1409  	}
  1410  	defer CloseHandle(snapshot)
  1411  	var procEntry ProcessEntry32
  1412  	procEntry.Size = uint32(unsafe.Sizeof(procEntry))
  1413  	if err = Process32First(snapshot, &procEntry); err != nil {
  1414  		return nil, err
  1415  	}
  1416  	for {
  1417  		if procEntry.ProcessID == uint32(pid) {
  1418  			return &procEntry, nil
  1419  		}
  1420  		err = Process32Next(snapshot, &procEntry)
  1421  		if err != nil {
  1422  			return nil, err
  1423  		}
  1424  	}
  1425  }
  1426  
  1427  func Getppid() (ppid int) {
  1428  	pe, err := getProcessEntry(Getpid())
  1429  	if err != nil {
  1430  		return -1
  1431  	}
  1432  	return int(pe.ParentProcessID)
  1433  }
  1434  
  1435  // TODO(brainman): fix all needed for os
  1436  func Fchdir(fd Handle) (err error)             { return syscall.EWINDOWS }
  1437  func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS }
  1438  func Symlink(path, link string) (err error)    { return syscall.EWINDOWS }
  1439  
  1440  func Fchmod(fd Handle, mode uint32) (err error)        { return syscall.EWINDOWS }
  1441  func Chown(path string, uid int, gid int) (err error)  { return syscall.EWINDOWS }
  1442  func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS }
  1443  func Fchown(fd Handle, uid int, gid int) (err error)   { return syscall.EWINDOWS }
  1444  
  1445  func Getuid() (uid int)                  { return -1 }
  1446  func Geteuid() (euid int)                { return -1 }
  1447  func Getgid() (gid int)                  { return -1 }
  1448  func Getegid() (egid int)                { return -1 }
  1449  func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS }
  1450  
  1451  type Signal int
  1452  
  1453  func (s Signal) Signal() {}
  1454  
  1455  func (s Signal) String() string {
  1456  	if 0 <= s && int(s) < len(signals) {
  1457  		str := signals[s]
  1458  		if str != "" {
  1459  			return str
  1460  		}
  1461  	}
  1462  	return "signal " + itoa(int(s))
  1463  }
  1464  
  1465  func LoadCreateSymbolicLink() error {
  1466  	return procCreateSymbolicLinkW.Find()
  1467  }
  1468  
  1469  // Readlink returns the destination of the named symbolic link.
  1470  func Readlink(path string, buf []byte) (n int, err error) {
  1471  	fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING,
  1472  		FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0)
  1473  	if err != nil {
  1474  		return -1, err
  1475  	}
  1476  	defer CloseHandle(fd)
  1477  
  1478  	rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE)
  1479  	var bytesReturned uint32
  1480  	err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil)
  1481  	if err != nil {
  1482  		return -1, err
  1483  	}
  1484  
  1485  	rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0]))
  1486  	var s string
  1487  	switch rdb.ReparseTag {
  1488  	case IO_REPARSE_TAG_SYMLINK:
  1489  		data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))
  1490  		p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))
  1491  		s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])
  1492  	case IO_REPARSE_TAG_MOUNT_POINT:
  1493  		data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))
  1494  		p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))
  1495  		s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])
  1496  	default:
  1497  		// the path is not a symlink or junction but another type of reparse
  1498  		// point
  1499  		return -1, syscall.ENOENT
  1500  	}
  1501  	n = copy(buf, []byte(s))
  1502  
  1503  	return n, nil
  1504  }
  1505  
  1506  // GUIDFromString parses a string in the form of
  1507  // "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID.
  1508  func GUIDFromString(str string) (GUID, error) {
  1509  	guid := GUID{}
  1510  	str16, err := syscall.UTF16PtrFromString(str)
  1511  	if err != nil {
  1512  		return guid, err
  1513  	}
  1514  	err = clsidFromString(str16, &guid)
  1515  	if err != nil {
  1516  		return guid, err
  1517  	}
  1518  	return guid, nil
  1519  }
  1520  
  1521  // GenerateGUID creates a new random GUID.
  1522  func GenerateGUID() (GUID, error) {
  1523  	guid := GUID{}
  1524  	err := coCreateGuid(&guid)
  1525  	if err != nil {
  1526  		return guid, err
  1527  	}
  1528  	return guid, nil
  1529  }
  1530  
  1531  // String returns the canonical string form of the GUID,
  1532  // in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}".
  1533  func (guid GUID) String() string {
  1534  	var str [100]uint16
  1535  	chars := stringFromGUID2(&guid, &str[0], int32(len(str)))
  1536  	if chars <= 1 {
  1537  		return ""
  1538  	}
  1539  	return string(utf16.Decode(str[:chars-1]))
  1540  }
  1541  
  1542  // KnownFolderPath returns a well-known folder path for the current user, specified by one of
  1543  // the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag.
  1544  func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) {
  1545  	return Token(0).KnownFolderPath(folderID, flags)
  1546  }
  1547  
  1548  // KnownFolderPath returns a well-known folder path for the user token, specified by one of
  1549  // the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag.
  1550  func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) {
  1551  	var p *uint16
  1552  	err := shGetKnownFolderPath(folderID, flags, t, &p)
  1553  	if err != nil {
  1554  		return "", err
  1555  	}
  1556  	defer CoTaskMemFree(unsafe.Pointer(p))
  1557  	return UTF16PtrToString(p), nil
  1558  }
  1559  
  1560  // RtlGetVersion returns the version of the underlying operating system, ignoring
  1561  // manifest semantics but is affected by the application compatibility layer.
  1562  func RtlGetVersion() *OsVersionInfoEx {
  1563  	info := &OsVersionInfoEx{}
  1564  	info.osVersionInfoSize = uint32(unsafe.Sizeof(*info))
  1565  	// According to documentation, this function always succeeds.
  1566  	// The function doesn't even check the validity of the
  1567  	// osVersionInfoSize member. Disassembling ntdll.dll indicates
  1568  	// that the documentation is indeed correct about that.
  1569  	_ = rtlGetVersion(info)
  1570  	return info
  1571  }
  1572  
  1573  // RtlGetNtVersionNumbers returns the version of the underlying operating system,
  1574  // ignoring manifest semantics and the application compatibility layer.
  1575  func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) {
  1576  	rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber)
  1577  	buildNumber &= 0xffff
  1578  	return
  1579  }
  1580  
  1581  // GetProcessPreferredUILanguages retrieves the process preferred UI languages.
  1582  func GetProcessPreferredUILanguages(flags uint32) ([]string, error) {
  1583  	return getUILanguages(flags, getProcessPreferredUILanguages)
  1584  }
  1585  
  1586  // GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread.
  1587  func GetThreadPreferredUILanguages(flags uint32) ([]string, error) {
  1588  	return getUILanguages(flags, getThreadPreferredUILanguages)
  1589  }
  1590  
  1591  // GetUserPreferredUILanguages retrieves information about the user preferred UI languages.
  1592  func GetUserPreferredUILanguages(flags uint32) ([]string, error) {
  1593  	return getUILanguages(flags, getUserPreferredUILanguages)
  1594  }
  1595  
  1596  // GetSystemPreferredUILanguages retrieves the system preferred UI languages.
  1597  func GetSystemPreferredUILanguages(flags uint32) ([]string, error) {
  1598  	return getUILanguages(flags, getSystemPreferredUILanguages)
  1599  }
  1600  
  1601  func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) {
  1602  	size := uint32(128)
  1603  	for {
  1604  		var numLanguages uint32
  1605  		buf := make([]uint16, size)
  1606  		err := f(flags, &numLanguages, &buf[0], &size)
  1607  		if err == ERROR_INSUFFICIENT_BUFFER {
  1608  			continue
  1609  		}
  1610  		if err != nil {
  1611  			return nil, err
  1612  		}
  1613  		buf = buf[:size]
  1614  		if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0"
  1615  			return []string{}, nil
  1616  		}
  1617  		if buf[len(buf)-1] == 0 {
  1618  			buf = buf[:len(buf)-1] // remove terminating null
  1619  		}
  1620  		languages := make([]string, 0, numLanguages)
  1621  		from := 0
  1622  		for i, c := range buf {
  1623  			if c == 0 {
  1624  				languages = append(languages, string(utf16.Decode(buf[from:i])))
  1625  				from = i + 1
  1626  			}
  1627  		}
  1628  		return languages, nil
  1629  	}
  1630  }
  1631  
  1632  func SetConsoleCursorPosition(console Handle, position Coord) error {
  1633  	return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position))))
  1634  }
  1635  
  1636  func GetStartupInfo(startupInfo *StartupInfo) error {
  1637  	getStartupInfo(startupInfo)
  1638  	return nil
  1639  }
  1640  
  1641  func (s NTStatus) Errno() syscall.Errno {
  1642  	return rtlNtStatusToDosErrorNoTeb(s)
  1643  }
  1644  
  1645  func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) }
  1646  
  1647  func (s NTStatus) Error() string {
  1648  	b := make([]uint16, 300)
  1649  	n, err := FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_FROM_HMODULE|FORMAT_MESSAGE_ARGUMENT_ARRAY, modntdll.Handle(), uint32(s), langID(LANG_ENGLISH, SUBLANG_ENGLISH_US), b, nil)
  1650  	if err != nil {
  1651  		return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s))
  1652  	}
  1653  	// trim terminating \r and \n
  1654  	for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- {
  1655  	}
  1656  	return string(utf16.Decode(b[:n]))
  1657  }
  1658  
  1659  // NewNTUnicodeString returns a new NTUnicodeString structure for use with native
  1660  // NT APIs that work over the NTUnicodeString type. Note that most Windows APIs
  1661  // do not use NTUnicodeString, and instead UTF16PtrFromString should be used for
  1662  // the more common *uint16 string type.
  1663  func NewNTUnicodeString(s string) (*NTUnicodeString, error) {
  1664  	var u NTUnicodeString
  1665  	s16, err := UTF16PtrFromString(s)
  1666  	if err != nil {
  1667  		return nil, err
  1668  	}
  1669  	RtlInitUnicodeString(&u, s16)
  1670  	return &u, nil
  1671  }
  1672  
  1673  // Slice returns a uint16 slice that aliases the data in the NTUnicodeString.
  1674  func (s *NTUnicodeString) Slice() []uint16 {
  1675  	slice := unsafe.Slice(s.Buffer, s.MaximumLength)
  1676  	return slice[:s.Length]
  1677  }
  1678  
  1679  func (s *NTUnicodeString) String() string {
  1680  	return UTF16ToString(s.Slice())
  1681  }
  1682  
  1683  // NewNTString returns a new NTString structure for use with native
  1684  // NT APIs that work over the NTString type. Note that most Windows APIs
  1685  // do not use NTString, and instead UTF16PtrFromString should be used for
  1686  // the more common *uint16 string type.
  1687  func NewNTString(s string) (*NTString, error) {
  1688  	var nts NTString
  1689  	s8, err := BytePtrFromString(s)
  1690  	if err != nil {
  1691  		return nil, err
  1692  	}
  1693  	RtlInitString(&nts, s8)
  1694  	return &nts, nil
  1695  }
  1696  
  1697  // Slice returns a byte slice that aliases the data in the NTString.
  1698  func (s *NTString) Slice() []byte {
  1699  	slice := unsafe.Slice(s.Buffer, s.MaximumLength)
  1700  	return slice[:s.Length]
  1701  }
  1702  
  1703  func (s *NTString) String() string {
  1704  	return ByteSliceToString(s.Slice())
  1705  }
  1706  
  1707  // FindResource resolves a resource of the given name and resource type.
  1708  func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) {
  1709  	var namePtr, resTypePtr uintptr
  1710  	var name16, resType16 *uint16
  1711  	var err error
  1712  	resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) {
  1713  		switch v := i.(type) {
  1714  		case string:
  1715  			*keep, err = UTF16PtrFromString(v)
  1716  			if err != nil {
  1717  				return 0, err
  1718  			}
  1719  			return uintptr(unsafe.Pointer(*keep)), nil
  1720  		case ResourceID:
  1721  			return uintptr(v), nil
  1722  		}
  1723  		return 0, errorspkg.New("parameter must be a ResourceID or a string")
  1724  	}
  1725  	namePtr, err = resolvePtr(name, &name16)
  1726  	if err != nil {
  1727  		return 0, err
  1728  	}
  1729  	resTypePtr, err = resolvePtr(resType, &resType16)
  1730  	if err != nil {
  1731  		return 0, err
  1732  	}
  1733  	resInfo, err := findResource(module, namePtr, resTypePtr)
  1734  	runtime.KeepAlive(name16)
  1735  	runtime.KeepAlive(resType16)
  1736  	return resInfo, err
  1737  }
  1738  
  1739  func LoadResourceData(module, resInfo Handle) (data []byte, err error) {
  1740  	size, err := SizeofResource(module, resInfo)
  1741  	if err != nil {
  1742  		return
  1743  	}
  1744  	resData, err := LoadResource(module, resInfo)
  1745  	if err != nil {
  1746  		return
  1747  	}
  1748  	ptr, err := LockResource(resData)
  1749  	if err != nil {
  1750  		return
  1751  	}
  1752  	data = unsafe.Slice((*byte)(unsafe.Pointer(ptr)), size)
  1753  	return
  1754  }
  1755  
  1756  // PSAPI_WORKING_SET_EX_BLOCK contains extended working set information for a page.
  1757  type PSAPI_WORKING_SET_EX_BLOCK uint64
  1758  
  1759  // Valid returns the validity of this page.
  1760  // If this bit is 1, the subsequent members are valid; otherwise they should be ignored.
  1761  func (b PSAPI_WORKING_SET_EX_BLOCK) Valid() bool {
  1762  	return (b & 1) == 1
  1763  }
  1764  
  1765  // ShareCount is the number of processes that share this page. The maximum value of this member is 7.
  1766  func (b PSAPI_WORKING_SET_EX_BLOCK) ShareCount() uint64 {
  1767  	return b.intField(1, 3)
  1768  }
  1769  
  1770  // Win32Protection is the memory protection attributes of the page. For a list of values, see
  1771  // https://docs.microsoft.com/en-us/windows/win32/memory/memory-protection-constants
  1772  func (b PSAPI_WORKING_SET_EX_BLOCK) Win32Protection() uint64 {
  1773  	return b.intField(4, 11)
  1774  }
  1775  
  1776  // Shared returns the shared status of this page.
  1777  // If this bit is 1, the page can be shared.
  1778  func (b PSAPI_WORKING_SET_EX_BLOCK) Shared() bool {
  1779  	return (b & (1 << 15)) == 1
  1780  }
  1781  
  1782  // Node is the NUMA node. The maximum value of this member is 63.
  1783  func (b PSAPI_WORKING_SET_EX_BLOCK) Node() uint64 {
  1784  	return b.intField(16, 6)
  1785  }
  1786  
  1787  // Locked returns the locked status of this page.
  1788  // If this bit is 1, the virtual page is locked in physical memory.
  1789  func (b PSAPI_WORKING_SET_EX_BLOCK) Locked() bool {
  1790  	return (b & (1 << 22)) == 1
  1791  }
  1792  
  1793  // LargePage returns the large page status of this page.
  1794  // If this bit is 1, the page is a large page.
  1795  func (b PSAPI_WORKING_SET_EX_BLOCK) LargePage() bool {
  1796  	return (b & (1 << 23)) == 1
  1797  }
  1798  
  1799  // Bad returns the bad status of this page.
  1800  // If this bit is 1, the page is has been reported as bad.
  1801  func (b PSAPI_WORKING_SET_EX_BLOCK) Bad() bool {
  1802  	return (b & (1 << 31)) == 1
  1803  }
  1804  
  1805  // intField extracts an integer field in the PSAPI_WORKING_SET_EX_BLOCK union.
  1806  func (b PSAPI_WORKING_SET_EX_BLOCK) intField(start, length int) uint64 {
  1807  	var mask PSAPI_WORKING_SET_EX_BLOCK
  1808  	for pos := start; pos < start+length; pos++ {
  1809  		mask |= (1 << pos)
  1810  	}
  1811  
  1812  	masked := b & mask
  1813  	return uint64(masked >> start)
  1814  }
  1815  
  1816  // PSAPI_WORKING_SET_EX_INFORMATION contains extended working set information for a process.
  1817  type PSAPI_WORKING_SET_EX_INFORMATION struct {
  1818  	// The virtual address.
  1819  	VirtualAddress Pointer
  1820  	// A PSAPI_WORKING_SET_EX_BLOCK union that indicates the attributes of the page at VirtualAddress.
  1821  	VirtualAttributes PSAPI_WORKING_SET_EX_BLOCK
  1822  }
  1823  
  1824  // CreatePseudoConsole creates a windows pseudo console.
  1825  func CreatePseudoConsole(size Coord, in Handle, out Handle, flags uint32, pconsole *Handle) error {
  1826  	// We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only
  1827  	// accept arguments that can be casted to uintptr, and Coord can't.
  1828  	return createPseudoConsole(*((*uint32)(unsafe.Pointer(&size))), in, out, flags, pconsole)
  1829  }
  1830  
  1831  // ResizePseudoConsole resizes the internal buffers of the pseudo console to the width and height specified in `size`.
  1832  func ResizePseudoConsole(pconsole Handle, size Coord) error {
  1833  	// We need this wrapper to manually cast Coord to uint32. The autogenerated wrappers only
  1834  	// accept arguments that can be casted to uintptr, and Coord can't.
  1835  	return resizePseudoConsole(pconsole, *((*uint32)(unsafe.Pointer(&size))))
  1836  }
  1837  

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