rss-tools @ master

// Copyright 2009 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Windows system calls.

package windows

import (

	errorspkg "errors"

	"fmt"

	"runtime"

	"sync"

	"syscall"

	"time"

	"unicode/utf16"

	"unsafe"

)

type (

	Handle uintptr

	HWND   uintptr

)

const (

	InvalidHandle = ^Handle(0)

	InvalidHWND   = ^HWND(0)

	// Flags for DefineDosDevice.

	DDD_EXACT_MATCH_ON_REMOVE = 0x00000004

	DDD_NO_BROADCAST_SYSTEM   = 0x00000008

	DDD_RAW_TARGET_PATH       = 0x00000001

	DDD_REMOVE_DEFINITION     = 0x00000002

	// Return values for GetDriveType.

	DRIVE_UNKNOWN     = 0

	DRIVE_NO_ROOT_DIR = 1

	DRIVE_REMOVABLE   = 2

	DRIVE_FIXED       = 3

	DRIVE_REMOTE      = 4

	DRIVE_CDROM       = 5

	DRIVE_RAMDISK     = 6

	// File system flags from GetVolumeInformation and GetVolumeInformationByHandle.

	FILE_CASE_SENSITIVE_SEARCH        = 0x00000001

	FILE_CASE_PRESERVED_NAMES         = 0x00000002

	FILE_FILE_COMPRESSION             = 0x00000010

	FILE_DAX_VOLUME                   = 0x20000000

	FILE_NAMED_STREAMS                = 0x00040000

	FILE_PERSISTENT_ACLS              = 0x00000008

	FILE_READ_ONLY_VOLUME             = 0x00080000

	FILE_SEQUENTIAL_WRITE_ONCE        = 0x00100000

	FILE_SUPPORTS_ENCRYPTION          = 0x00020000

	FILE_SUPPORTS_EXTENDED_ATTRIBUTES = 0x00800000

	FILE_SUPPORTS_HARD_LINKS          = 0x00400000

	FILE_SUPPORTS_OBJECT_IDS          = 0x00010000

	FILE_SUPPORTS_OPEN_BY_FILE_ID     = 0x01000000

	FILE_SUPPORTS_REPARSE_POINTS      = 0x00000080

	FILE_SUPPORTS_SPARSE_FILES        = 0x00000040

	FILE_SUPPORTS_TRANSACTIONS        = 0x00200000

	FILE_SUPPORTS_USN_JOURNAL         = 0x02000000

	FILE_UNICODE_ON_DISK              = 0x00000004

	FILE_VOLUME_IS_COMPRESSED         = 0x00008000

	FILE_VOLUME_QUOTAS                = 0x00000020

	// Flags for LockFileEx.

	LOCKFILE_FAIL_IMMEDIATELY = 0x00000001

	LOCKFILE_EXCLUSIVE_LOCK   = 0x00000002

	// Return value of SleepEx and other APC functions

	WAIT_IO_COMPLETION = 0x000000C0

)

// StringToUTF16 is deprecated. Use UTF16FromString instead.

// If s contains a NUL byte this function panics instead of

// returning an error.

func StringToUTF16(s string) []uint16 {

	a, err := UTF16FromString(s)

	if err != nil {

		panic("windows: string with NUL passed to StringToUTF16")

	}

	return a

}

// UTF16FromString returns the UTF-16 encoding of the UTF-8 string

// s, with a terminating NUL added. If s contains a NUL byte at any

// location, it returns (nil, syscall.EINVAL).

func UTF16FromString(s string) ([]uint16, error) {

	return syscall.UTF16FromString(s)

}

// UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,

// with a terminating NUL and any bytes after the NUL removed.

func UTF16ToString(s []uint16) string {

	return syscall.UTF16ToString(s)

}

// StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead.

// If s contains a NUL byte this function panics instead of

// returning an error.

func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] }

// UTF16PtrFromString returns pointer to the UTF-16 encoding of

// the UTF-8 string s, with a terminating NUL added. If s

// contains a NUL byte at any location, it returns (nil, syscall.EINVAL).

func UTF16PtrFromString(s string) (*uint16, error) {

	a, err := UTF16FromString(s)

	if err != nil {

		return nil, err

	}

	return &a[0], nil

}

// UTF16PtrToString takes a pointer to a UTF-16 sequence and returns the corresponding UTF-8 encoded string.

// If the pointer is nil, it returns the empty string. It assumes that the UTF-16 sequence is terminated

// at a zero word; if the zero word is not present, the program may crash.

func UTF16PtrToString(p *uint16) string {

	if p == nil {

		return ""

	}

	if *p == 0 {

		return ""

	}

	// Find NUL terminator.

	n := 0

	for ptr := unsafe.Pointer(p); *(*uint16)(ptr) != 0; n++ {

		ptr = unsafe.Pointer(uintptr(ptr) + unsafe.Sizeof(*p))

	}

	return UTF16ToString(unsafe.Slice(p, n))

}

func Getpagesize() int { return 4096 }

// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.

// This is useful when interoperating with Windows code requiring callbacks.

// 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.

func NewCallback(fn interface{}) uintptr {

	return syscall.NewCallback(fn)

}

// NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention.

// This is useful when interoperating with Windows code requiring callbacks.

// 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.

func NewCallbackCDecl(fn interface{}) uintptr {

	return syscall.NewCallbackCDecl(fn)

}

// windows api calls

//sys	GetLastError() (lasterr error)

//sys	LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW

//sys	LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW

//sys	FreeLibrary(handle Handle) (err error)

//sys	GetProcAddress(module Handle, procname string) (proc uintptr, err error)

//sys	GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW

//sys	GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW

//sys	SetDefaultDllDirectories(directoryFlags uint32) (err error)

//sys	AddDllDirectory(path *uint16) (cookie uintptr, err error) = kernel32.AddDllDirectory

//sys	RemoveDllDirectory(cookie uintptr) (err error) = kernel32.RemoveDllDirectory

//sys	SetDllDirectory(path string) (err error) = kernel32.SetDllDirectoryW

//sys	GetVersion() (ver uint32, err error)

//sys	FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW

//sys	ExitProcess(exitcode uint32)

//sys	IsWow64Process(handle Handle, isWow64 *bool) (err error) = IsWow64Process

//sys	IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) = IsWow64Process2?

//sys	CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW

//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

//sys	ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error)

//sys	DisconnectNamedPipe(pipe Handle) (err error)

//sys   GetNamedPipeClientProcessId(pipe Handle, clientProcessID *uint32) (err error)

//sys   GetNamedPipeServerProcessId(pipe Handle, serverProcessID *uint32) (err error)

//sys	GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error)

//sys	GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW

//sys	SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState

//sys	readFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = ReadFile

//sys	writeFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) = WriteFile

//sys	GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error)

//sys	SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]

//sys	CloseHandle(handle Handle) (err error)

//sys	GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle]

//sys	SetStdHandle(stdhandle uint32, handle Handle) (err error)

//sys	findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW

//sys	findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW

//sys	FindClose(handle Handle) (err error)

//sys	GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)

//sys	GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error)

//sys	SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error)

//sys	GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW

//sys	SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW

//sys	CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW

//sys	RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW

//sys	DeleteFile(path *uint16) (err error) = DeleteFileW

//sys	MoveFile(from *uint16, to *uint16) (err error) = MoveFileW

//sys	MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW

//sys	LockFileEx(file Handle, flags uint32, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)

//sys	UnlockFileEx(file Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error)

//sys	GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW

//sys	GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW

//sys	SetEndOfFile(handle Handle) (err error)

//sys	SetFileValidData(handle Handle, validDataLength int64) (err error)

//sys	GetSystemTimeAsFileTime(time *Filetime)

//sys	GetSystemTimePreciseAsFileTime(time *Filetime)

//sys	GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]

//sys	CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uintptr, threadcnt uint32) (handle Handle, err error)

//sys	GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uintptr, overlapped **Overlapped, timeout uint32) (err error)

//sys	PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uintptr, overlapped *Overlapped) (err error)

//sys	CancelIo(s Handle) (err error)

//sys	CancelIoEx(s Handle, o *Overlapped) (err error)

//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

//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

//sys   initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrcount uint32, flags uint32, size *uintptr) (err error) = InitializeProcThreadAttributeList

//sys   deleteProcThreadAttributeList(attrlist *ProcThreadAttributeList) = DeleteProcThreadAttributeList

//sys   updateProcThreadAttribute(attrlist *ProcThreadAttributeList, flags uint32, attr uintptr, value unsafe.Pointer, size uintptr, prevvalue unsafe.Pointer, returnedsize *uintptr) (err error) = UpdateProcThreadAttribute

//sys	OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error)

//sys	ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW

//sys	GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId

//sys	LoadKeyboardLayout(name *uint16, flags uint32) (hkl Handle, err error) [failretval==0] = user32.LoadKeyboardLayoutW

//sys	UnloadKeyboardLayout(hkl Handle) (err error) = user32.UnloadKeyboardLayout

//sys	GetKeyboardLayout(tid uint32) (hkl Handle) = user32.GetKeyboardLayout

//sys	ToUnicodeEx(vkey uint32, scancode uint32, keystate *byte, pwszBuff *uint16, cchBuff int32, flags uint32, hkl Handle) (ret int32) = user32.ToUnicodeEx

//sys	GetShellWindow() (shellWindow HWND) = user32.GetShellWindow

//sys	MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW

//sys	ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx

//sys	shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath

//sys	TerminateProcess(handle Handle, exitcode uint32) (err error)

//sys	GetExitCodeProcess(handle Handle, exitcode *uint32) (err error)

//sys	getStartupInfo(startupInfo *StartupInfo) = GetStartupInfoW

//sys	GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error)

//sys	DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)

//sys	WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]

//sys	waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects

//sys	GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW

//sys	CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error)

//sys	GetFileType(filehandle Handle) (n uint32, err error)

//sys	CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW

//sys	CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext

//sys	CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom

//sys	GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW

//sys	FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW

//sys	GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW

//sys	SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW

//sys	ExpandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) = kernel32.ExpandEnvironmentStringsW

//sys	CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock

//sys	DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock

//sys	getTickCount64() (ms uint64) = kernel32.GetTickCount64

//sys   GetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)

//sys	SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)

//sys	GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW

//sys	SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW

//sys	GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW

//sys	GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW

//sys	commandLineToArgv(cmd *uint16, argc *int32) (argv **uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW

//sys	LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0]

//sys	LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error)

//sys	SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error)

//sys	FlushFileBuffers(handle Handle) (err error)

//sys	GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW

//sys	GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW

//sys	GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW

//sys	GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW

//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

//sys	MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error)

//sys	UnmapViewOfFile(addr uintptr) (err error)

//sys	FlushViewOfFile(addr uintptr, length uintptr) (err error)

//sys	VirtualLock(addr uintptr, length uintptr) (err error)

//sys	VirtualUnlock(addr uintptr, length uintptr) (err error)

//sys	VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc

//sys	VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree

//sys	VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect

//sys	VirtualProtectEx(process Handle, address uintptr, size uintptr, newProtect uint32, oldProtect *uint32) (err error) = kernel32.VirtualProtectEx

//sys	VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQuery

//sys	VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQueryEx

//sys	ReadProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesRead *uintptr) (err error) = kernel32.ReadProcessMemory

//sys	WriteProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesWritten *uintptr) (err error) = kernel32.WriteProcessMemory

//sys	TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile

//sys	ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW

//sys	FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW

//sys	FindNextChangeNotification(handle Handle) (err error)

//sys	FindCloseChangeNotification(handle Handle) (err error)

//sys	CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW

//sys	CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore

//sys	CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore

//sys	CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore

//sys	CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore

//sys	CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore

//sys	CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext

//sys	PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore

//sys	CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain

//sys	CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain

//sys	CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext

//sys	CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext

//sys	CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy

//sys	CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW

//sys	CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension

//sys   CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore

//sys   CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore

//sys   CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey

//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

//sys	CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject

//sys	CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData

//sys	CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData

//sys	WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx

//sys	RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW

//sys	RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey

//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

//sys	RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW

//sys	RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW

//sys	RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue

//sys	GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId

//sys	ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId

//sys	ClosePseudoConsole(console Handle) = kernel32.ClosePseudoConsole

//sys	createPseudoConsole(size uint32, in Handle, out Handle, flags uint32, pconsole *Handle) (hr error) = kernel32.CreatePseudoConsole

//sys	GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode

//sys	SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode

//sys	GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo

//sys	setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition

//sys	GetConsoleCP() (cp uint32, err error) = kernel32.GetConsoleCP

//sys	GetConsoleOutputCP() (cp uint32, err error) = kernel32.GetConsoleOutputCP

//sys	SetConsoleCP(cp uint32) (err error) = kernel32.SetConsoleCP

//sys	SetConsoleOutputCP(cp uint32) (err error) = kernel32.SetConsoleOutputCP

//sys	WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW

//sys	ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW

//sys	GetNumberOfConsoleInputEvents(console Handle, numevents *uint32) (err error) = kernel32.GetNumberOfConsoleInputEvents

//sys	FlushConsoleInputBuffer(console Handle) (err error) = kernel32.FlushConsoleInputBuffer

//sys	resizePseudoConsole(pconsole Handle, size uint32) (hr error) = kernel32.ResizePseudoConsole

//sys	CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot

//sys	Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW

//sys	Module32Next(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32NextW

//sys	Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW

//sys	Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW

//sys	Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error)

//sys	Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error)

//sys	DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error)

// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL.

//sys	CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW

//sys	CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW

//sys	GetCurrentThreadId() (id uint32)

//sys	CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW

//sys	CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW

//sys	OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW

//sys	SetEvent(event Handle) (err error) = kernel32.SetEvent

//sys	ResetEvent(event Handle) (err error) = kernel32.ResetEvent

//sys	PulseEvent(event Handle) (err error) = kernel32.PulseEvent

//sys	CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW

//sys	CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW

//sys	OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW

//sys	ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex

//sys	SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx

//sys	CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW

//sys	AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject

//sys	TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject

//sys	SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode

//sys	ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread

//sys	SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass

//sys	GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass

//sys	QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject

//sys	SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error)

//sys	GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error)

//sys	GetProcessId(process Handle) (id uint32, err error)

//sys	QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW

//sys	OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error)

//sys	SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost

//sys	GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32)

//sys	SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error)

//sys	ClearCommBreak(handle Handle) (err error)

//sys	ClearCommError(handle Handle, lpErrors *uint32, lpStat *ComStat) (err error)

//sys	EscapeCommFunction(handle Handle, dwFunc uint32) (err error)

//sys	GetCommState(handle Handle, lpDCB *DCB) (err error)

//sys	GetCommModemStatus(handle Handle, lpModemStat *uint32) (err error)

//sys	GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)

//sys	PurgeComm(handle Handle, dwFlags uint32) (err error)

//sys	SetCommBreak(handle Handle) (err error)

//sys	SetCommMask(handle Handle, dwEvtMask uint32) (err error)

//sys	SetCommState(handle Handle, lpDCB *DCB) (err error)

//sys	SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error)

//sys	SetupComm(handle Handle, dwInQueue uint32, dwOutQueue uint32) (err error)

//sys	WaitCommEvent(handle Handle, lpEvtMask *uint32, lpOverlapped *Overlapped) (err error)

//sys	GetActiveProcessorCount(groupNumber uint16) (ret uint32)

//sys	GetMaximumProcessorCount(groupNumber uint16) (ret uint32)

//sys	EnumWindows(enumFunc uintptr, param unsafe.Pointer) (err error) = user32.EnumWindows

//sys	EnumChildWindows(hwnd HWND, enumFunc uintptr, param unsafe.Pointer) = user32.EnumChildWindows

//sys	GetClassName(hwnd HWND, className *uint16, maxCount int32) (copied int32, err error) = user32.GetClassNameW

//sys	GetDesktopWindow() (hwnd HWND) = user32.GetDesktopWindow

//sys	GetForegroundWindow() (hwnd HWND) = user32.GetForegroundWindow

//sys	IsWindow(hwnd HWND) (isWindow bool) = user32.IsWindow

//sys	IsWindowUnicode(hwnd HWND) (isUnicode bool) = user32.IsWindowUnicode

//sys	IsWindowVisible(hwnd HWND) (isVisible bool) = user32.IsWindowVisible

//sys	GetGUIThreadInfo(thread uint32, info *GUIThreadInfo) (err error) = user32.GetGUIThreadInfo

//sys	GetLargePageMinimum() (size uintptr)

// Volume Management Functions

//sys	DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW

//sys	DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW

//sys	FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW

//sys	FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW

//sys	FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW

//sys	FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW

//sys	FindVolumeClose(findVolume Handle) (err error)

//sys	FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error)

//sys	GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW

//sys	GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW

//sys	GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0]

//sys	GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW

//sys	GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW

//sys	GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW

//sys	GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW

//sys	GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW

//sys	GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW

//sys	QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW

//sys	SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW

//sys	SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW

//sys	InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW

//sys	SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters

//sys	GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters

//sys	clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString

//sys	stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2

//sys	coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid

//sys	CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree

//sys	CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx

//sys	CoUninitialize() = ole32.CoUninitialize

//sys	CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject

//sys	getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages

//sys	getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages

//sys	getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages

//sys	getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages

//sys	findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW

//sys	SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource

//sys	LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource

//sys	LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource

// Version APIs

//sys	GetFileVersionInfoSize(filename string, zeroHandle *Handle) (bufSize uint32, err error) = version.GetFileVersionInfoSizeW

//sys	GetFileVersionInfo(filename string, handle uint32, bufSize uint32, buffer unsafe.Pointer) (err error) = version.GetFileVersionInfoW

//sys	VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW

// Process Status API (PSAPI)

//sys	enumProcesses(processIds *uint32, nSize uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses

//sys	EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules

//sys	EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx

//sys	GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation

//sys	GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW

//sys	GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW

//sys   QueryWorkingSetEx(process Handle, pv uintptr, cb uint32) (err error) = psapi.QueryWorkingSetEx

// NT Native APIs

//sys	rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb

//sys	rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion

//sys	rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers

//sys	RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb

//sys	RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString

//sys	RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString

//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

//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

//sys	NtSetInformationFile(handle Handle, iosb *IO_STATUS_BLOCK, inBuffer *byte, inBufferLen uint32, class uint32) (ntstatus error) = ntdll.NtSetInformationFile

//sys	RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus

//sys	RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus

//sys	RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl

//sys	NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess

//sys	NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess

//sys	NtQuerySystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQuerySystemInformation

//sys	NtSetSystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32) (ntstatus error) = ntdll.NtSetSystemInformation

//sys	RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable

//sys	RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable

// Desktop Window Manager API (Dwmapi)

//sys	DwmGetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmGetWindowAttribute

//sys	DwmSetWindowAttribute(hwnd HWND, attribute uint32, value unsafe.Pointer, size uint32) (ret error) = dwmapi.DwmSetWindowAttribute

// Windows Multimedia API

//sys TimeBeginPeriod (period uint32) (err error) [failretval != 0] = winmm.timeBeginPeriod

//sys TimeEndPeriod (period uint32) (err error) [failretval != 0] = winmm.timeEndPeriod

// syscall interface implementation for other packages

// GetCurrentProcess returns the handle for the current process.

// It is a pseudo handle that does not need to be closed.

// The returned error is always nil.

//

// Deprecated: use CurrentProcess for the same Handle without the nil

// error.

func GetCurrentProcess() (Handle, error) {

	return CurrentProcess(), nil

}

// CurrentProcess returns the handle for the current process.

// It is a pseudo handle that does not need to be closed.

func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) }

// GetCurrentThread returns the handle for the current thread.

// It is a pseudo handle that does not need to be closed.

// The returned error is always nil.

//

// Deprecated: use CurrentThread for the same Handle without the nil

// error.

func GetCurrentThread() (Handle, error) {

	return CurrentThread(), nil

}

// CurrentThread returns the handle for the current thread.

// It is a pseudo handle that does not need to be closed.

func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) }

// GetProcAddressByOrdinal retrieves the address of the exported

// function from module by ordinal.

func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) {

	r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0)

	proc = uintptr(r0)

	if proc == 0 {

		err = errnoErr(e1)

	}

	return

}

func Exit(code int) { ExitProcess(uint32(code)) }

func makeInheritSa() *SecurityAttributes {

	var sa SecurityAttributes

	sa.Length = uint32(unsafe.Sizeof(sa))

	sa.InheritHandle = 1

	return &sa

}

func Open(path string, mode int, perm uint32) (fd Handle, err error) {

	if len(path) == 0 {

		return InvalidHandle, ERROR_FILE_NOT_FOUND

	}

	pathp, err := UTF16PtrFromString(path)

	if err != nil {

		return InvalidHandle, err

	}

	var access uint32

	switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {

	case O_RDONLY:

		access = GENERIC_READ

	case O_WRONLY:

		access = GENERIC_WRITE

	case O_RDWR:

		access = GENERIC_READ | GENERIC_WRITE

	}

	if mode&O_CREAT != 0 {

		access |= GENERIC_WRITE

	}

	if mode&O_APPEND != 0 {

		access &^= GENERIC_WRITE

		access |= FILE_APPEND_DATA

	}

	sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE)

	var sa *SecurityAttributes

	if mode&O_CLOEXEC == 0 {

		sa = makeInheritSa()

	}

	var createmode uint32

	switch {

	case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):

		createmode = CREATE_NEW

	case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):

		createmode = CREATE_ALWAYS

	case mode&O_CREAT == O_CREAT:

		createmode = OPEN_ALWAYS

	case mode&O_TRUNC == O_TRUNC:

		createmode = TRUNCATE_EXISTING

	default:

		createmode = OPEN_EXISTING

	}

	var attrs uint32 = FILE_ATTRIBUTE_NORMAL

	if perm&S_IWRITE == 0 {

		attrs = FILE_ATTRIBUTE_READONLY

	}

	h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0)

	return h, e

}

func Read(fd Handle, p []byte) (n int, err error) {

	var done uint32

	e := ReadFile(fd, p, &done, nil)

	if e != nil {

		if e == ERROR_BROKEN_PIPE {

			// NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin

			return 0, nil

		}

		return 0, e

	}

	return int(done), nil

}

func Write(fd Handle, p []byte) (n int, err error) {

	if raceenabled {

		raceReleaseMerge(unsafe.Pointer(&ioSync))

	}

	var done uint32

	e := WriteFile(fd, p, &done, nil)

	if e != nil {

		return 0, e

	}

	return int(done), nil

}

func ReadFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {

	err := readFile(fd, p, done, overlapped)

	if raceenabled {

		if *done > 0 {

			raceWriteRange(unsafe.Pointer(&p[0]), int(*done))

		}

		raceAcquire(unsafe.Pointer(&ioSync))

	}

	return err

}

func WriteFile(fd Handle, p []byte, done *uint32, overlapped *Overlapped) error {

	if raceenabled {

		raceReleaseMerge(unsafe.Pointer(&ioSync))

	}

	err := writeFile(fd, p, done, overlapped)

	if raceenabled && *done > 0 {

		raceReadRange(unsafe.Pointer(&p[0]), int(*done))

	}

	return err

}

var ioSync int64

func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) {

	var w uint32

	switch whence {

	case 0:

		w = FILE_BEGIN

	case 1:

		w = FILE_CURRENT

	case 2:

		w = FILE_END

	}

	hi := int32(offset >> 32)

	lo := int32(offset)

	// use GetFileType to check pipe, pipe can't do seek

	ft, _ := GetFileType(fd)

	if ft == FILE_TYPE_PIPE {

		return 0, syscall.EPIPE

	}

	rlo, e := SetFilePointer(fd, lo, &hi, w)

	if e != nil {

		return 0, e

	}

	return int64(hi)<<32 + int64(rlo), nil

}

func Close(fd Handle) (err error) {

	return CloseHandle(fd)

}

var (

	Stdin  = getStdHandle(STD_INPUT_HANDLE)

	Stdout = getStdHandle(STD_OUTPUT_HANDLE)

	Stderr = getStdHandle(STD_ERROR_HANDLE)

)

func getStdHandle(stdhandle uint32) (fd Handle) {

	r, _ := GetStdHandle(stdhandle)

	return r

}

const ImplementsGetwd = true

func Getwd() (wd string, err error) {

	b := make([]uint16, 300)

	n, e := GetCurrentDirectory(uint32(len(b)), &b[0])

	if e != nil {

		return "", e

	}

	return string(utf16.Decode(b[0:n])), nil

}

func Chdir(path string) (err error) {

	pathp, err := UTF16PtrFromString(path)

	if err != nil {

		return err

	}

	return SetCurrentDirectory(pathp)

}

func Mkdir(path string, mode uint32) (err error) {

	pathp, err := UTF16PtrFromString(path)

	if err != nil {

		return err

	}

	return CreateDirectory(pathp, nil)

}

func Rmdir(path string) (err error) {

	pathp, err := UTF16PtrFromString(path)

	if err != nil {

		return err

	}

	return RemoveDirectory(pathp)

}

func Unlink(path string) (err error) {

	pathp, err := UTF16PtrFromString(path)

	if err != nil {

		return err

	}

	return DeleteFile(pathp)

}

func Rename(oldpath, newpath string) (err error) {

	from, err := UTF16PtrFromString(oldpath)

	if err != nil {

		return err

	}

	to, err := UTF16PtrFromString(newpath)

	if err != nil {

		return err

	}

	return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING)

}

func ComputerName() (name string, err error) {

	var n uint32 = MAX_COMPUTERNAME_LENGTH + 1

	b := make([]uint16, n)

	e := GetComputerName(&b[0], &n)

	if e != nil {

		return "", e

	}

	return string(utf16.Decode(b[0:n])), nil

}

func DurationSinceBoot() time.Duration {

	return time.Duration(getTickCount64()) * time.Millisecond

}

func Ftruncate(fd Handle, length int64) (err error) {

	type _FILE_END_OF_FILE_INFO struct {

		EndOfFile int64

	}

	var info _FILE_END_OF_FILE_INFO

	info.EndOfFile = length

	return SetFileInformationByHandle(fd, FileEndOfFileInfo, (*byte)(unsafe.Pointer(&info)), uint32(unsafe.Sizeof(info)))

}

func Gettimeofday(tv *Timeval) (err error) {

	var ft Filetime

	GetSystemTimeAsFileTime(&ft)

	*tv = NsecToTimeval(ft.Nanoseconds())

	return nil

}

func Pipe(p []Handle) (err error) {

	if len(p) != 2 {

		return syscall.EINVAL

	}

	var r, w Handle

	e := CreatePipe(&r, &w, makeInheritSa(), 0)

	if e != nil {

		return e

	}

	p[0] = r

	p[1] = w

	return nil

}

func Utimes(path string, tv []Timeval) (err error) {

	if len(tv) != 2 {

		return syscall.EINVAL

	}

	pathp, e := UTF16PtrFromString(path)

	if e != nil {

		return e

	}

	h, e := CreateFile(pathp,

		FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,

		OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)

	if e != nil {

		return e

	}

	defer CloseHandle(h)

	a := NsecToFiletime(tv[0].Nanoseconds())

	w := NsecToFiletime(tv[1].Nanoseconds())

	return SetFileTime(h, nil, &a, &w)

}

func UtimesNano(path string, ts []Timespec) (err error) {

	if len(ts) != 2 {

		return syscall.EINVAL

	}

	pathp, e := UTF16PtrFromString(path)

	if e != nil {

		return e

	}

	h, e := CreateFile(pathp,

		FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,

		OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)

	if e != nil {

		return e

	}

	defer CloseHandle(h)

	a := NsecToFiletime(TimespecToNsec(ts[0]))

	w := NsecToFiletime(TimespecToNsec(ts[1]))

	return SetFileTime(h, nil, &a, &w)

}

func Fsync(fd Handle) (err error) {

	return FlushFileBuffers(fd)

}

func Chmod(path string, mode uint32) (err error) {

	p, e := UTF16PtrFromString(path)

	if e != nil {

		return e

	}

	attrs, e := GetFileAttributes(p)

	if e != nil {

		return e

	}

	if mode&S_IWRITE != 0 {

		attrs &^= FILE_ATTRIBUTE_READONLY

	} else {

		attrs |= FILE_ATTRIBUTE_READONLY

	}

	return SetFileAttributes(p, attrs)

}

func LoadGetSystemTimePreciseAsFileTime() error {

	return procGetSystemTimePreciseAsFileTime.Find()

}

func LoadCancelIoEx() error {

	return procCancelIoEx.Find()

}

func LoadSetFileCompletionNotificationModes() error {

	return procSetFileCompletionNotificationModes.Find()

}

func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) {

	// Every other win32 array API takes arguments as "pointer, count", except for this function. So we

	// can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore

	// trivially stub this ourselves.

	var handlePtr *Handle

	if len(handles) > 0 {

		handlePtr = &handles[0]

	}

	return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds)

}

// net api calls

const socket_error = uintptr(^uint32(0))

//sys	WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup

//sys	WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup

//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

//sys	WSALookupServiceBegin(querySet *WSAQUERYSET, flags uint32, handle *Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceBeginW

//sys	WSALookupServiceNext(handle Handle, flags uint32, size *int32, querySet *WSAQUERYSET) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceNextW

//sys	WSALookupServiceEnd(handle Handle) (err error) [failretval==socket_error] = ws2_32.WSALookupServiceEnd

//sys	socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket

//sys	sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto

//sys	recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom

//sys	Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt

//sys	Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt

//sys	bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind

//sys	connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect

//sys	getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname

//sys	getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername

//sys	listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen

//sys	shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown

//sys	Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket

//sys	AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx

//sys	GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs

//sys	WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv

//sys	WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend

//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

//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

//sys	WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW

//sys	WSADuplicateSocket(s Handle, processID uint32, info *WSAProtocolInfo) (err error) [failretval!=0] = ws2_32.WSADuplicateSocketW

//sys	GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname

//sys	GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname

//sys	Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs

//sys	GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname

//sys	DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W

//sys	DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree

//sys	DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W

//sys	GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW

//sys	FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW

//sys	GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry

//sys	GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo

//sys	SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes

//sys	WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW

//sys	WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult

//sys	GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses

//sys	GetACP() (acp uint32) = kernel32.GetACP

//sys	MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar

//sys	getBestInterfaceEx(sockaddr unsafe.Pointer, pdwBestIfIndex *uint32) (errcode error) = iphlpapi.GetBestInterfaceEx

//sys   GetIfEntry2Ex(level uint32, row *MibIfRow2) (errcode error) = iphlpapi.GetIfEntry2Ex

//sys   GetIpForwardEntry2(row *MibIpForwardRow2) (errcode error) = iphlpapi.GetIpForwardEntry2

//sys   GetIpForwardTable2(family uint16, table **MibIpForwardTable2) (errcode error) = iphlpapi.GetIpForwardTable2

//sys   GetUnicastIpAddressEntry(row *MibUnicastIpAddressRow) (errcode error) = iphlpapi.GetUnicastIpAddressEntry

//sys   FreeMibTable(memory unsafe.Pointer) = iphlpapi.FreeMibTable

//sys   NotifyIpInterfaceChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyIpInterfaceChange

//sys   NotifyRouteChange2(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyRouteChange2

//sys   NotifyUnicastIpAddressChange(family uint16, callback uintptr, callerContext unsafe.Pointer, initialNotification bool, notificationHandle *Handle) (errcode error) = iphlpapi.NotifyUnicastIpAddressChange

//sys   CancelMibChangeNotify2(notificationHandle Handle) (errcode error) = iphlpapi.CancelMibChangeNotify2

//sys	IsProcessorFeaturePresent(ProcessorFeature uint32) (ret bool) = kernel32.IsProcessorFeaturePresent

// For testing: clients can set this flag to force

// creation of IPv6 sockets to return EAFNOSUPPORT.

var SocketDisableIPv6 bool

type RawSockaddrInet4 struct {

	Family uint16

	Port   uint16

	Addr   [4]byte /* in_addr */

	Zero   [8]uint8

}

type RawSockaddrInet6 struct {

	Family   uint16

	Port     uint16

	Flowinfo uint32

	Addr     [16]byte /* in6_addr */

	Scope_id uint32

}

// RawSockaddrInet is a union that contains an IPv4, an IPv6 address, or an address family. See

// https://learn.microsoft.com/en-us/windows/win32/api/ws2ipdef/ns-ws2ipdef-sockaddr_inet.

//

// A [*RawSockaddrInet] may be converted to a [*RawSockaddrInet4] or [*RawSockaddrInet6] using

// unsafe, depending on the address family.

type RawSockaddrInet struct {

	Family uint16

	Port   uint16

	Data   [6]uint32

}

type RawSockaddr struct {

	Family uint16

	Data   [14]int8

}

type RawSockaddrAny struct {

	Addr RawSockaddr

	Pad  [100]int8

}

type Sockaddr interface {

	sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs

}

type SockaddrInet4 struct {

	Port int

	Addr [4]byte

	raw  RawSockaddrInet4

}

func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) {

	if sa.Port < 0 || sa.Port > 0xFFFF {

		return nil, 0, syscall.EINVAL

	}

	sa.raw.Family = AF_INET

	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))

	p[0] = byte(sa.Port >> 8)

	p[1] = byte(sa.Port)

	sa.raw.Addr = sa.Addr

	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil

}

type SockaddrInet6 struct {

	Port   int

	ZoneId uint32

	Addr   [16]byte

	raw    RawSockaddrInet6

}

func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) {

	if sa.Port < 0 || sa.Port > 0xFFFF {

		return nil, 0, syscall.EINVAL

	}

	sa.raw.Family = AF_INET6

	p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))

	p[0] = byte(sa.Port >> 8)

	p[1] = byte(sa.Port)

	sa.raw.Scope_id = sa.ZoneId

	sa.raw.Addr = sa.Addr

	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil

}

type RawSockaddrUnix struct {

	Family uint16

	Path   [UNIX_PATH_MAX]int8

}

type SockaddrUnix struct {

	Name string

	raw  RawSockaddrUnix

}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {

	name := sa.Name

	n := len(name)

	if n > len(sa.raw.Path) {

		return nil, 0, syscall.EINVAL

	}

	if n == len(sa.raw.Path) && name[0] != '@' {

		return nil, 0, syscall.EINVAL

	}

	sa.raw.Family = AF_UNIX

	for i := 0; i < n; i++ {

		sa.raw.Path[i] = int8(name[i])

	}

	// length is family (uint16), name, NUL.

	sl := int32(2)

	if n > 0 {

		sl += int32(n) + 1

	}

	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {

		// Check sl > 3 so we don't change unnamed socket behavior.

		sa.raw.Path[0] = 0

		// Don't count trailing NUL for abstract address.

		sl--

	}

	return unsafe.Pointer(&sa.raw), sl, nil

}

type RawSockaddrBth struct {

	AddressFamily  [2]byte

	BtAddr         [8]byte

	ServiceClassId [16]byte

	Port           [4]byte

}

type SockaddrBth struct {

	BtAddr         uint64

	ServiceClassId GUID

	Port           uint32

	raw RawSockaddrBth

}

func (sa *SockaddrBth) sockaddr() (unsafe.Pointer, int32, error) {

	family := AF_BTH

	sa.raw = RawSockaddrBth{

		AddressFamily:  *(*[2]byte)(unsafe.Pointer(&family)),

		BtAddr:         *(*[8]byte)(unsafe.Pointer(&sa.BtAddr)),

		Port:           *(*[4]byte)(unsafe.Pointer(&sa.Port)),

		ServiceClassId: *(*[16]byte)(unsafe.Pointer(&sa.ServiceClassId)),

	}

	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil

}

func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {

	switch rsa.Addr.Family {

	case AF_UNIX:

		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))

		sa := new(SockaddrUnix)

		if pp.Path[0] == 0 {

			// "Abstract" Unix domain socket.

			// Rewrite leading NUL as @ for textual display.

			// (This is the standard convention.)

			// Not friendly to overwrite in place,

			// but the callers below don't care.

			pp.Path[0] = '@'

		}

		// Assume path ends at NUL.

		// This is not technically the Linux semantics for

		// abstract Unix domain sockets--they are supposed

		// to be uninterpreted fixed-size binary blobs--but

		// everyone uses this convention.

		n := 0

		for n < len(pp.Path) && pp.Path[n] != 0 {

			n++

		}

		sa.Name = string(unsafe.Slice((*byte)(unsafe.Pointer(&pp.Path[0])), n))

		return sa, nil

	case AF_INET:

		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))

		sa := new(SockaddrInet4)

		p := (*[2]byte)(unsafe.Pointer(&pp.Port))

		sa.Port = int(p[0])<<8 + int(p[1])

		sa.Addr = pp.Addr

		return sa, nil

	case AF_INET6:

		pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))

		sa := new(SockaddrInet6)

		p := (*[2]byte)(unsafe.Pointer(&pp.Port))

		sa.Port = int(p[0])<<8 + int(p[1])

		sa.ZoneId = pp.Scope_id

		sa.Addr = pp.Addr

		return sa, nil

	}

	return nil, syscall.EAFNOSUPPORT

}

func Socket(domain, typ, proto int) (fd Handle, err error) {

	if domain == AF_INET6 && SocketDisableIPv6 {

		return InvalidHandle, syscall.EAFNOSUPPORT

	}

	return socket(int32(domain), int32(typ), int32(proto))

}

func SetsockoptInt(fd Handle, level, opt int, value int) (err error) {

	v := int32(value)

	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v)))

}

func Bind(fd Handle, sa Sockaddr) (err error) {

	ptr, n, err := sa.sockaddr()

	if err != nil {

		return err

	}

	return bind(fd, ptr, n)

}

func Connect(fd Handle, sa Sockaddr) (err error) {

	ptr, n, err := sa.sockaddr()

	if err != nil {

		return err

	}

	return connect(fd, ptr, n)

}

func GetBestInterfaceEx(sa Sockaddr, pdwBestIfIndex *uint32) (err error) {

	ptr, _, err := sa.sockaddr()

	if err != nil {

		return err

	}

	return getBestInterfaceEx(ptr, pdwBestIfIndex)

}

func Getsockname(fd Handle) (sa Sockaddr, err error) {

	var rsa RawSockaddrAny

	l := int32(unsafe.Sizeof(rsa))

	if err = getsockname(fd, &rsa, &l); err != nil {

		return

	}

	return rsa.Sockaddr()

}

func Getpeername(fd Handle) (sa Sockaddr, err error) {

	var rsa RawSockaddrAny

	l := int32(unsafe.Sizeof(rsa))

	if err = getpeername(fd, &rsa, &l); err != nil {

		return

	}

	return rsa.Sockaddr()

}

func Listen(s Handle, n int) (err error) {

	return listen(s, int32(n))

}

func Shutdown(fd Handle, how int) (err error) {

	return shutdown(fd, int32(how))

}

func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) {

	var rsa unsafe.Pointer

	var l int32

	if to != nil {

		rsa, l, err = to.sockaddr()

		if err != nil {

			return err

		}

	}

	return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)

}

func LoadGetAddrInfo() error {

	return procGetAddrInfoW.Find()

}

var connectExFunc struct {

	once sync.Once

	addr uintptr

	err  error

}

func LoadConnectEx() error {

	connectExFunc.once.Do(func() {

		var s Handle

		s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)

		if connectExFunc.err != nil {

			return

		}

		defer CloseHandle(s)

		var n uint32

		connectExFunc.err = WSAIoctl(s,

			SIO_GET_EXTENSION_FUNCTION_POINTER,

			(*byte)(unsafe.Pointer(&WSAID_CONNECTEX)),

			uint32(unsafe.Sizeof(WSAID_CONNECTEX)),

			(*byte)(unsafe.Pointer(&connectExFunc.addr)),

			uint32(unsafe.Sizeof(connectExFunc.addr)),

			&n, nil, 0)

	})

	return connectExFunc.err

}

func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) {

	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)

	if r1 == 0 {

		if e1 != 0 {

			err = error(e1)

		} else {

			err = syscall.EINVAL

		}

	}

	return

}

func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error {

	err := LoadConnectEx()

	if err != nil {

		return errorspkg.New("failed to find ConnectEx: " + err.Error())

	}

	ptr, n, err := sa.sockaddr()

	if err != nil {

		return err

	}

	return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped)

}

var sendRecvMsgFunc struct {

	once     sync.Once

	sendAddr uintptr

	recvAddr uintptr

	err      error

}

func loadWSASendRecvMsg() error {

	sendRecvMsgFunc.once.Do(func() {

		var s Handle

		s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)

		if sendRecvMsgFunc.err != nil {

			return

		}

		defer CloseHandle(s)

		var n uint32

		sendRecvMsgFunc.err = WSAIoctl(s,

			SIO_GET_EXTENSION_FUNCTION_POINTER,

			(*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)),

			uint32(unsafe.Sizeof(WSAID_WSARECVMSG)),

			(*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)),

			uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)),

			&n, nil, 0)

		if sendRecvMsgFunc.err != nil {

			return

		}

		sendRecvMsgFunc.err = WSAIoctl(s,

			SIO_GET_EXTENSION_FUNCTION_POINTER,

			(*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)),

			uint32(unsafe.Sizeof(WSAID_WSASENDMSG)),

			(*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)),

			uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)),

			&n, nil, 0)

	})

	return sendRecvMsgFunc.err

}

func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error {

	err := loadWSASendRecvMsg()

	if err != nil {

		return err

	}

	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)))

	if r1 == socket_error {

		err = errnoErr(e1)

	}

	return err

}

func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error {

	err := loadWSASendRecvMsg()

	if err != nil {

		return err

	}

	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)

	if r1 == socket_error {

		err = errnoErr(e1)

	}

	return err

}

// Invented structures to support what package os expects.

type Rusage struct {

	CreationTime Filetime

	ExitTime     Filetime

	KernelTime   Filetime

	UserTime     Filetime

}

type WaitStatus struct {

	ExitCode uint32

}

func (w WaitStatus) Exited() bool { return true }

func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) }

func (w WaitStatus) Signal() Signal { return -1 }

func (w WaitStatus) CoreDump() bool { return false }

func (w WaitStatus) Stopped() bool { return false }

func (w WaitStatus) Continued() bool { return false }

func (w WaitStatus) StopSignal() Signal { return -1 }

func (w WaitStatus) Signaled() bool { return false }

func (w WaitStatus) TrapCause() int { return -1 }

// Timespec is an invented structure on Windows, but here for

// consistency with the corresponding package for other operating systems.

type Timespec struct {

	Sec  int64

	Nsec int64

}

func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }

func NsecToTimespec(nsec int64) (ts Timespec) {

	ts.Sec = nsec / 1e9

	ts.Nsec = nsec % 1e9

	return

}

// TODO(brainman): fix all needed for net

func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS }

func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) {

	var rsa RawSockaddrAny

	l := int32(unsafe.Sizeof(rsa))

	n32, err := recvfrom(fd, p, int32(flags), &rsa, &l)

	n = int(n32)

	if err != nil {

		return

	}

	from, err = rsa.Sockaddr()

	return

}

func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) {

	ptr, l, err := to.sockaddr()

	if err != nil {

		return err

	}

	return sendto(fd, p, int32(flags), ptr, l)

}

func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS }

// The Linger struct is wrong but we only noticed after Go 1.

// sysLinger is the real system call structure.

// BUG(brainman): The definition of Linger is not appropriate for direct use

// with Setsockopt and Getsockopt.

// Use SetsockoptLinger instead.

type Linger struct {

	Onoff  int32

	Linger int32

}

type sysLinger struct {

	Onoff  uint16

	Linger uint16

}

type IPMreq struct {

	Multiaddr [4]byte /* in_addr */

	Interface [4]byte /* in_addr */

}

type IPv6Mreq struct {

	Multiaddr [16]byte /* in6_addr */

	Interface uint32

}

func GetsockoptInt(fd Handle, level, opt int) (int, error) {

	v := int32(0)

	l := int32(unsafe.Sizeof(v))

	err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l)

	return int(v), err

}

func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) {

	sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)}

	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys)))

}

func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) {

	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4)

}

func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) {

	return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq)))

}

func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) {

	return syscall.EWINDOWS

}

func EnumProcesses(processIds []uint32, bytesReturned *uint32) error {

	// EnumProcesses syscall expects the size parameter to be in bytes, but the code generated with mksyscall uses

	// the length of the processIds slice instead. Hence, this wrapper function is added to fix the discrepancy.

	var p *uint32

	if len(processIds) > 0 {

		p = &processIds[0]

	}

	size := uint32(len(processIds) * 4)

	return enumProcesses(p, size, bytesReturned)

}

func Getpid() (pid int) { return int(GetCurrentProcessId()) }

func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) {

	// NOTE(rsc): The Win32finddata struct is wrong for the system call:

	// the two paths are each one uint16 short. Use the correct struct,

	// a win32finddata1, and then copy the results out.

	// There is no loss of expressivity here, because the final

	// uint16, if it is used, is supposed to be a NUL, and Go doesn't need that.

	// For Go 1.1, we might avoid the allocation of win32finddata1 here

	// by adding a final Bug [2]uint16 field to the struct and then

	// adjusting the fields in the result directly.

	var data1 win32finddata1

	handle, err = findFirstFile1(name, &data1)

	if err == nil {

		copyFindData(data, &data1)

	}

	return

}

func FindNextFile(handle Handle, data *Win32finddata) (err error) {

	var data1 win32finddata1

	err = findNextFile1(handle, &data1)

	if err == nil {

		copyFindData(data, &data1)

	}

	return

}

func getProcessEntry(pid int) (*ProcessEntry32, error) {

	snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)

	if err != nil {

		return nil, err

	}

	defer CloseHandle(snapshot)

	var procEntry ProcessEntry32

	procEntry.Size = uint32(unsafe.Sizeof(procEntry))

	if err = Process32First(snapshot, &procEntry); err != nil {

		return nil, err

	}

	for {

		if procEntry.ProcessID == uint32(pid) {

			return &procEntry, nil

		}

		err = Process32Next(snapshot, &procEntry)

		if err != nil {

			return nil, err

		}

	}

}

func Getppid() (ppid int) {

	pe, err := getProcessEntry(Getpid())

	if err != nil {

		return -1

	}

	return int(pe.ParentProcessID)

}

// TODO(brainman): fix all needed for os

func Fchdir(fd Handle) (err error)             { return syscall.EWINDOWS }

func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS }

func Symlink(path, link string) (err error)    { return syscall.EWINDOWS }

func Fchmod(fd Handle, mode uint32) (err error)        { return syscall.EWINDOWS }

func Chown(path string, uid int, gid int) (err error)  { return syscall.EWINDOWS }

func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS }

func Fchown(fd Handle, uid int, gid int) (err error)   { return syscall.EWINDOWS }

func Getuid() (uid int)                  { return -1 }

func Geteuid() (euid int)                { return -1 }

func Getgid() (gid int)                  { return -1 }

func Getegid() (egid int)                { return -1 }

func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS }

func LoadCreateSymbolicLink() error {

	return procCreateSymbolicLinkW.Find()

}

// Readlink returns the destination of the named symbolic link.

func Readlink(path string, buf []byte) (n int, err error) {

	fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING,

		FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0)

	if err != nil {

		return -1, err

	}

	defer CloseHandle(fd)

	rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE)

	var bytesReturned uint32

	err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil)

	if err != nil {

		return -1, err

	}

	rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0]))

	var s string

	switch rdb.ReparseTag {

	case IO_REPARSE_TAG_SYMLINK:

		data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))

		p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))

		s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])

	case IO_REPARSE_TAG_MOUNT_POINT:

		data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))

		p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))

		s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])

	default:

		// the path is not a symlink or junction but another type of reparse

		// point

		return -1, syscall.ENOENT

	}

	n = copy(buf, []byte(s))

	return n, nil

}

// GUIDFromString parses a string in the form of

// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID.

func GUIDFromString(str string) (GUID, error) {

	guid := GUID{}

	str16, err := syscall.UTF16PtrFromString(str)

	if err != nil {

		return guid, err

	}

	err = clsidFromString(str16, &guid)

	if err != nil {

		return guid, err

	}

	return guid, nil

}

// GenerateGUID creates a new random GUID.

func GenerateGUID() (GUID, error) {

	guid := GUID{}

	err := coCreateGuid(&guid)

	if err != nil {

		return guid, err

	}

	return guid, nil

}

// String returns the canonical string form of the GUID,

// in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}".

func (guid GUID) String() string {

	var str [100]uint16

	chars := stringFromGUID2(&guid, &str[0], int32(len(str)))

	if chars <= 1 {

		return ""

	}

	return string(utf16.Decode(str[:chars-1]))

}

// KnownFolderPath returns a well-known folder path for the current user, specified by one of

// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag.

func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) {

	return Token(0).KnownFolderPath(folderID, flags)

}

// KnownFolderPath returns a well-known folder path for the user token, specified by one of

// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag.

func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) {

	var p *uint16

	err := shGetKnownFolderPath(folderID, flags, t, &p)

	if err != nil {

		return "", err

	}

	defer CoTaskMemFree(unsafe.Pointer(p))

	return UTF16PtrToString(p), nil

}

// RtlGetVersion returns the version of the underlying operating system, ignoring

// manifest semantics but is affected by the application compatibility layer.

func RtlGetVersion() *OsVersionInfoEx {

	info := &OsVersionInfoEx{}

	info.osVersionInfoSize = uint32(unsafe.Sizeof(*info))

	// According to documentation, this function always succeeds.

	// The function doesn't even check the validity of the