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 7package windows 8 9import ( 10 errorspkg "errors" 11 "fmt" 12 "runtime" 13 "sync" 14 "syscall" 15 "time" 16 "unicode/utf16" 17 "unsafe" 18 19 "golang.org/x/sys/internal/unsafeheader" 20) 21 22type Handle uintptr 23type HWND uintptr 24 25const ( 26 InvalidHandle = ^Handle(0) 27 InvalidHWND = ^HWND(0) 28 29 // Flags for DefineDosDevice. 30 DDD_EXACT_MATCH_ON_REMOVE = 0x00000004 31 DDD_NO_BROADCAST_SYSTEM = 0x00000008 32 DDD_RAW_TARGET_PATH = 0x00000001 33 DDD_REMOVE_DEFINITION = 0x00000002 34 35 // Return values for GetDriveType. 36 DRIVE_UNKNOWN = 0 37 DRIVE_NO_ROOT_DIR = 1 38 DRIVE_REMOVABLE = 2 39 DRIVE_FIXED = 3 40 DRIVE_REMOTE = 4 41 DRIVE_CDROM = 5 42 DRIVE_RAMDISK = 6 43 44 // File system flags from GetVolumeInformation and GetVolumeInformationByHandle. 45 FILE_CASE_SENSITIVE_SEARCH = 0x00000001 46 FILE_CASE_PRESERVED_NAMES = 0x00000002 47 FILE_FILE_COMPRESSION = 0x00000010 48 FILE_DAX_VOLUME = 0x20000000 49 FILE_NAMED_STREAMS = 0x00040000 50 FILE_PERSISTENT_ACLS = 0x00000008 51 FILE_READ_ONLY_VOLUME = 0x00080000 52 FILE_SEQUENTIAL_WRITE_ONCE = 0x00100000 53 FILE_SUPPORTS_ENCRYPTION = 0x00020000 54 FILE_SUPPORTS_EXTENDED_ATTRIBUTES = 0x00800000 55 FILE_SUPPORTS_HARD_LINKS = 0x00400000 56 FILE_SUPPORTS_OBJECT_IDS = 0x00010000 57 FILE_SUPPORTS_OPEN_BY_FILE_ID = 0x01000000 58 FILE_SUPPORTS_REPARSE_POINTS = 0x00000080 59 FILE_SUPPORTS_SPARSE_FILES = 0x00000040 60 FILE_SUPPORTS_TRANSACTIONS = 0x00200000 61 FILE_SUPPORTS_USN_JOURNAL = 0x02000000 62 FILE_UNICODE_ON_DISK = 0x00000004 63 FILE_VOLUME_IS_COMPRESSED = 0x00008000 64 FILE_VOLUME_QUOTAS = 0x00000020 65 66 // Flags for LockFileEx. 67 LOCKFILE_FAIL_IMMEDIATELY = 0x00000001 68 LOCKFILE_EXCLUSIVE_LOCK = 0x00000002 69 70 // Return value of SleepEx and other APC functions 71 WAIT_IO_COMPLETION = 0x000000C0 72) 73 74// StringToUTF16 is deprecated. Use UTF16FromString instead. 75// If s contains a NUL byte this function panics instead of 76// returning an error. 77func StringToUTF16(s string) []uint16 { 78 a, err := UTF16FromString(s) 79 if err != nil { 80 panic("windows: string with NUL passed to StringToUTF16") 81 } 82 return a 83} 84 85// UTF16FromString returns the UTF-16 encoding of the UTF-8 string 86// s, with a terminating NUL added. If s contains a NUL byte at any 87// location, it returns (nil, syscall.EINVAL). 88func UTF16FromString(s string) ([]uint16, error) { 89 for i := 0; i < len(s); i++ { 90 if s[i] == 0 { 91 return nil, syscall.EINVAL 92 } 93 } 94 return utf16.Encode([]rune(s + "\x00")), nil 95} 96 97// UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s, 98// with a terminating NUL and any bytes after the NUL removed. 99func UTF16ToString(s []uint16) string { 100 for i, v := range s { 101 if v == 0 { 102 s = s[:i] 103 break 104 } 105 } 106 return string(utf16.Decode(s)) 107} 108 109// StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead. 110// If s contains a NUL byte this function panics instead of 111// returning an error. 112func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] } 113 114// UTF16PtrFromString returns pointer to the UTF-16 encoding of 115// the UTF-8 string s, with a terminating NUL added. If s 116// contains a NUL byte at any location, it returns (nil, syscall.EINVAL). 117func UTF16PtrFromString(s string) (*uint16, error) { 118 a, err := UTF16FromString(s) 119 if err != nil { 120 return nil, err 121 } 122 return &a[0], nil 123} 124 125// UTF16PtrToString takes a pointer to a UTF-16 sequence and returns the corresponding UTF-8 encoded string. 126// If the pointer is nil, it returns the empty string. It assumes that the UTF-16 sequence is terminated 127// at a zero word; if the zero word is not present, the program may crash. 128func UTF16PtrToString(p *uint16) string { 129 if p == nil { 130 return "" 131 } 132 if *p == 0 { 133 return "" 134 } 135 136 // Find NUL terminator. 137 n := 0 138 for ptr := unsafe.Pointer(p); *(*uint16)(ptr) != 0; n++ { 139 ptr = unsafe.Pointer(uintptr(ptr) + unsafe.Sizeof(*p)) 140 } 141 142 var s []uint16 143 h := (*unsafeheader.Slice)(unsafe.Pointer(&s)) 144 h.Data = unsafe.Pointer(p) 145 h.Len = n 146 h.Cap = n 147 148 return string(utf16.Decode(s)) 149} 150 151func Getpagesize() int { return 4096 } 152 153// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention. 154// This is useful when interoperating with Windows code requiring callbacks. 155// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. 156func NewCallback(fn interface{}) uintptr { 157 return syscall.NewCallback(fn) 158} 159 160// NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention. 161// This is useful when interoperating with Windows code requiring callbacks. 162// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr. 163func NewCallbackCDecl(fn interface{}) uintptr { 164 return syscall.NewCallbackCDecl(fn) 165} 166 167// windows api calls 168 169//sys GetLastError() (lasterr error) 170//sys LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW 171//sys LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW 172//sys FreeLibrary(handle Handle) (err error) 173//sys GetProcAddress(module Handle, procname string) (proc uintptr, err error) 174//sys GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW 175//sys GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW 176//sys SetDefaultDllDirectories(directoryFlags uint32) (err error) 177//sys SetDllDirectory(path string) (err error) = kernel32.SetDllDirectoryW 178//sys GetVersion() (ver uint32, err error) 179//sys FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW 180//sys ExitProcess(exitcode uint32) 181//sys IsWow64Process(handle Handle, isWow64 *bool) (err error) = IsWow64Process 182//sys IsWow64Process2(handle Handle, processMachine *uint16, nativeMachine *uint16) (err error) = IsWow64Process2? 183//sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile Handle) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW 184//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 185//sys ConnectNamedPipe(pipe Handle, overlapped *Overlapped) (err error) 186//sys GetNamedPipeInfo(pipe Handle, flags *uint32, outSize *uint32, inSize *uint32, maxInstances *uint32) (err error) 187//sys GetNamedPipeHandleState(pipe Handle, state *uint32, curInstances *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32, userName *uint16, maxUserNameSize uint32) (err error) = GetNamedPipeHandleStateW 188//sys SetNamedPipeHandleState(pipe Handle, state *uint32, maxCollectionCount *uint32, collectDataTimeout *uint32) (err error) = SetNamedPipeHandleState 189//sys ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) 190//sys WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error) 191//sys GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error) 192//sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff] 193//sys CloseHandle(handle Handle) (err error) 194//sys GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle] 195//sys SetStdHandle(stdhandle uint32, handle Handle) (err error) 196//sys findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW 197//sys findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW 198//sys FindClose(handle Handle) (err error) 199//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error) 200//sys GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (err error) 201//sys SetFileInformationByHandle(handle Handle, class uint32, inBuffer *byte, inBufferLen uint32) (err error) 202//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW 203//sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW 204//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW 205//sys RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW 206//sys DeleteFile(path *uint16) (err error) = DeleteFileW 207//sys MoveFile(from *uint16, to *uint16) (err error) = MoveFileW 208//sys MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW 209//sys LockFileEx(file Handle, flags uint32, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error) 210//sys UnlockFileEx(file Handle, reserved uint32, bytesLow uint32, bytesHigh uint32, overlapped *Overlapped) (err error) 211//sys GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW 212//sys GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW 213//sys SetEndOfFile(handle Handle) (err error) 214//sys GetSystemTimeAsFileTime(time *Filetime) 215//sys GetSystemTimePreciseAsFileTime(time *Filetime) 216//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff] 217//sys CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uintptr, threadcnt uint32) (handle Handle, err error) 218//sys GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uintptr, overlapped **Overlapped, timeout uint32) (err error) 219//sys PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uintptr, overlapped *Overlapped) (err error) 220//sys CancelIo(s Handle) (err error) 221//sys CancelIoEx(s Handle, o *Overlapped) (err error) 222//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 223//sys initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrcount uint32, flags uint32, size *uintptr) (err error) = InitializeProcThreadAttributeList 224//sys deleteProcThreadAttributeList(attrlist *ProcThreadAttributeList) = DeleteProcThreadAttributeList 225//sys updateProcThreadAttribute(attrlist *ProcThreadAttributeList, flags uint32, attr uintptr, value unsafe.Pointer, size uintptr, prevvalue unsafe.Pointer, returnedsize *uintptr) (err error) = UpdateProcThreadAttribute 226//sys OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error) 227//sys ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW 228//sys GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId 229//sys GetShellWindow() (shellWindow HWND) = user32.GetShellWindow 230//sys MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW 231//sys ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx 232//sys shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath 233//sys TerminateProcess(handle Handle, exitcode uint32) (err error) 234//sys GetExitCodeProcess(handle Handle, exitcode *uint32) (err error) 235//sys GetStartupInfo(startupInfo *StartupInfo) (err error) = GetStartupInfoW 236//sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error) 237//sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error) 238//sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] 239//sys waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects 240//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW 241//sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error) 242//sys GetFileType(filehandle Handle) (n uint32, err error) 243//sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW 244//sys CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext 245//sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom 246//sys GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW 247//sys FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW 248//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW 249//sys SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW 250//sys CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock 251//sys DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock 252//sys getTickCount64() (ms uint64) = kernel32.GetTickCount64 253//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error) 254//sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW 255//sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW 256//sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW 257//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW 258//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW 259//sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0] 260//sys LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error) 261//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error) 262//sys FlushFileBuffers(handle Handle) (err error) 263//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW 264//sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW 265//sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW 266//sys GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW 267//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 268//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error) 269//sys UnmapViewOfFile(addr uintptr) (err error) 270//sys FlushViewOfFile(addr uintptr, length uintptr) (err error) 271//sys VirtualLock(addr uintptr, length uintptr) (err error) 272//sys VirtualUnlock(addr uintptr, length uintptr) (err error) 273//sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc 274//sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree 275//sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect 276//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile 277//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW 278//sys FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW 279//sys FindNextChangeNotification(handle Handle) (err error) 280//sys FindCloseChangeNotification(handle Handle) (err error) 281//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW 282//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore 283//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore 284//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore 285//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore 286//sys CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore 287//sys CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext 288//sys PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore 289//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain 290//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain 291//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext 292//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext 293//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy 294//sys CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW 295//sys CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension 296//sys CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore 297//sys CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore 298//sys CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey 299//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 300//sys CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject 301//sys CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData 302//sys CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData 303//sys WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx 304//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW 305//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey 306//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 307//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW 308//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW 309//sys RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue 310//sys GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId 311//sys ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId 312//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode 313//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode 314//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo 315//sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition 316//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW 317//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW 318//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot 319//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW 320//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW 321//sys Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error) 322//sys Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error) 323//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error) 324// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. 325//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW 326//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW 327//sys GetCurrentThreadId() (id uint32) 328//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW 329//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW 330//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW 331//sys SetEvent(event Handle) (err error) = kernel32.SetEvent 332//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent 333//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent 334//sys CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW 335//sys CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW 336//sys OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW 337//sys ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex 338//sys SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx 339//sys CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW 340//sys AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject 341//sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject 342//sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode 343//sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread 344//sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass 345//sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass 346//sys QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject 347//sys SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error) 348//sys GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error) 349//sys GetProcessId(process Handle) (id uint32, err error) 350//sys QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW 351//sys OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error) 352//sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost 353//sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32) 354//sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error) 355//sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 356//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 357 358// Volume Management Functions 359//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW 360//sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW 361//sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW 362//sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW 363//sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW 364//sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW 365//sys FindVolumeClose(findVolume Handle) (err error) 366//sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) 367//sys GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW 368//sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW 369//sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] 370//sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW 371//sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW 372//sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW 373//sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW 374//sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW 375//sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW 376//sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW 377//sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW 378//sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW 379//sys InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW 380//sys SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters 381//sys GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters 382//sys clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString 383//sys stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2 384//sys coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid 385//sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree 386//sys CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx 387//sys CoUninitialize() = ole32.CoUninitialize 388//sys CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject 389//sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages 390//sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages 391//sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages 392//sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages 393//sys findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW 394//sys SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource 395//sys LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource 396//sys LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource 397 398// Process Status API (PSAPI) 399//sys EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses 400 401// NT Native APIs 402//sys rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb 403//sys rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion 404//sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers 405//sys RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb 406//sys RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString 407//sys RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString 408//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 409//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 410//sys RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus 411//sys RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus 412//sys RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl 413//sys NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess 414//sys NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess 415 416// syscall interface implementation for other packages 417 418// GetCurrentProcess returns the handle for the current process. 419// It is a pseudo handle that does not need to be closed. 420// The returned error is always nil. 421// 422// Deprecated: use CurrentProcess for the same Handle without the nil 423// error. 424func GetCurrentProcess() (Handle, error) { 425 return CurrentProcess(), nil 426} 427 428// CurrentProcess returns the handle for the current process. 429// It is a pseudo handle that does not need to be closed. 430func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) } 431 432// GetCurrentThread returns the handle for the current thread. 433// It is a pseudo handle that does not need to be closed. 434// The returned error is always nil. 435// 436// Deprecated: use CurrentThread for the same Handle without the nil 437// error. 438func GetCurrentThread() (Handle, error) { 439 return CurrentThread(), nil 440} 441 442// CurrentThread returns the handle for the current thread. 443// It is a pseudo handle that does not need to be closed. 444func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) } 445 446// GetProcAddressByOrdinal retrieves the address of the exported 447// function from module by ordinal. 448func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { 449 r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) 450 proc = uintptr(r0) 451 if proc == 0 { 452 err = errnoErr(e1) 453 } 454 return 455} 456 457func Exit(code int) { ExitProcess(uint32(code)) } 458 459func makeInheritSa() *SecurityAttributes { 460 var sa SecurityAttributes 461 sa.Length = uint32(unsafe.Sizeof(sa)) 462 sa.InheritHandle = 1 463 return &sa 464} 465 466func Open(path string, mode int, perm uint32) (fd Handle, err error) { 467 if len(path) == 0 { 468 return InvalidHandle, ERROR_FILE_NOT_FOUND 469 } 470 pathp, err := UTF16PtrFromString(path) 471 if err != nil { 472 return InvalidHandle, err 473 } 474 var access uint32 475 switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { 476 case O_RDONLY: 477 access = GENERIC_READ 478 case O_WRONLY: 479 access = GENERIC_WRITE 480 case O_RDWR: 481 access = GENERIC_READ | GENERIC_WRITE 482 } 483 if mode&O_CREAT != 0 { 484 access |= GENERIC_WRITE 485 } 486 if mode&O_APPEND != 0 { 487 access &^= GENERIC_WRITE 488 access |= FILE_APPEND_DATA 489 } 490 sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE) 491 var sa *SecurityAttributes 492 if mode&O_CLOEXEC == 0 { 493 sa = makeInheritSa() 494 } 495 var createmode uint32 496 switch { 497 case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): 498 createmode = CREATE_NEW 499 case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): 500 createmode = CREATE_ALWAYS 501 case mode&O_CREAT == O_CREAT: 502 createmode = OPEN_ALWAYS 503 case mode&O_TRUNC == O_TRUNC: 504 createmode = TRUNCATE_EXISTING 505 default: 506 createmode = OPEN_EXISTING 507 } 508 var attrs uint32 = FILE_ATTRIBUTE_NORMAL 509 if perm&S_IWRITE == 0 { 510 attrs = FILE_ATTRIBUTE_READONLY 511 } 512 h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) 513 return h, e 514} 515 516func Read(fd Handle, p []byte) (n int, err error) { 517 var done uint32 518 e := ReadFile(fd, p, &done, nil) 519 if e != nil { 520 if e == ERROR_BROKEN_PIPE { 521 // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin 522 return 0, nil 523 } 524 return 0, e 525 } 526 if raceenabled { 527 if done > 0 { 528 raceWriteRange(unsafe.Pointer(&p[0]), int(done)) 529 } 530 raceAcquire(unsafe.Pointer(&ioSync)) 531 } 532 return int(done), nil 533} 534 535func Write(fd Handle, p []byte) (n int, err error) { 536 if raceenabled { 537 raceReleaseMerge(unsafe.Pointer(&ioSync)) 538 } 539 var done uint32 540 e := WriteFile(fd, p, &done, nil) 541 if e != nil { 542 return 0, e 543 } 544 if raceenabled && done > 0 { 545 raceReadRange(unsafe.Pointer(&p[0]), int(done)) 546 } 547 return int(done), nil 548} 549 550var ioSync int64 551 552func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) { 553 var w uint32 554 switch whence { 555 case 0: 556 w = FILE_BEGIN 557 case 1: 558 w = FILE_CURRENT 559 case 2: 560 w = FILE_END 561 } 562 hi := int32(offset >> 32) 563 lo := int32(offset) 564 // use GetFileType to check pipe, pipe can't do seek 565 ft, _ := GetFileType(fd) 566 if ft == FILE_TYPE_PIPE { 567 return 0, syscall.EPIPE 568 } 569 rlo, e := SetFilePointer(fd, lo, &hi, w) 570 if e != nil { 571 return 0, e 572 } 573 return int64(hi)<<32 + int64(rlo), nil 574} 575 576func Close(fd Handle) (err error) { 577 return CloseHandle(fd) 578} 579 580var ( 581 Stdin = getStdHandle(STD_INPUT_HANDLE) 582 Stdout = getStdHandle(STD_OUTPUT_HANDLE) 583 Stderr = getStdHandle(STD_ERROR_HANDLE) 584) 585 586func getStdHandle(stdhandle uint32) (fd Handle) { 587 r, _ := GetStdHandle(stdhandle) 588 CloseOnExec(r) 589 return r 590} 591 592const ImplementsGetwd = true 593 594func Getwd() (wd string, err error) { 595 b := make([]uint16, 300) 596 n, e := GetCurrentDirectory(uint32(len(b)), &b[0]) 597 if e != nil { 598 return "", e 599 } 600 return string(utf16.Decode(b[0:n])), nil 601} 602 603func Chdir(path string) (err error) { 604 pathp, err := UTF16PtrFromString(path) 605 if err != nil { 606 return err 607 } 608 return SetCurrentDirectory(pathp) 609} 610 611func Mkdir(path string, mode uint32) (err error) { 612 pathp, err := UTF16PtrFromString(path) 613 if err != nil { 614 return err 615 } 616 return CreateDirectory(pathp, nil) 617} 618 619func Rmdir(path string) (err error) { 620 pathp, err := UTF16PtrFromString(path) 621 if err != nil { 622 return err 623 } 624 return RemoveDirectory(pathp) 625} 626 627func Unlink(path string) (err error) { 628 pathp, err := UTF16PtrFromString(path) 629 if err != nil { 630 return err 631 } 632 return DeleteFile(pathp) 633} 634 635func Rename(oldpath, newpath string) (err error) { 636 from, err := UTF16PtrFromString(oldpath) 637 if err != nil { 638 return err 639 } 640 to, err := UTF16PtrFromString(newpath) 641 if err != nil { 642 return err 643 } 644 return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) 645} 646 647func ComputerName() (name string, err error) { 648 var n uint32 = MAX_COMPUTERNAME_LENGTH + 1 649 b := make([]uint16, n) 650 e := GetComputerName(&b[0], &n) 651 if e != nil { 652 return "", e 653 } 654 return string(utf16.Decode(b[0:n])), nil 655} 656 657func DurationSinceBoot() time.Duration { 658 return time.Duration(getTickCount64()) * time.Millisecond 659} 660 661func Ftruncate(fd Handle, length int64) (err error) { 662 curoffset, e := Seek(fd, 0, 1) 663 if e != nil { 664 return e 665 } 666 defer Seek(fd, curoffset, 0) 667 _, e = Seek(fd, length, 0) 668 if e != nil { 669 return e 670 } 671 e = SetEndOfFile(fd) 672 if e != nil { 673 return e 674 } 675 return nil 676} 677 678func Gettimeofday(tv *Timeval) (err error) { 679 var ft Filetime 680 GetSystemTimeAsFileTime(&ft) 681 *tv = NsecToTimeval(ft.Nanoseconds()) 682 return nil 683} 684 685func Pipe(p []Handle) (err error) { 686 if len(p) != 2 { 687 return syscall.EINVAL 688 } 689 var r, w Handle 690 e := CreatePipe(&r, &w, makeInheritSa(), 0) 691 if e != nil { 692 return e 693 } 694 p[0] = r 695 p[1] = w 696 return nil 697} 698 699func Utimes(path string, tv []Timeval) (err error) { 700 if len(tv) != 2 { 701 return syscall.EINVAL 702 } 703 pathp, e := UTF16PtrFromString(path) 704 if e != nil { 705 return e 706 } 707 h, e := CreateFile(pathp, 708 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 709 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 710 if e != nil { 711 return e 712 } 713 defer Close(h) 714 a := NsecToFiletime(tv[0].Nanoseconds()) 715 w := NsecToFiletime(tv[1].Nanoseconds()) 716 return SetFileTime(h, nil, &a, &w) 717} 718 719func UtimesNano(path string, ts []Timespec) (err error) { 720 if len(ts) != 2 { 721 return syscall.EINVAL 722 } 723 pathp, e := UTF16PtrFromString(path) 724 if e != nil { 725 return e 726 } 727 h, e := CreateFile(pathp, 728 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 729 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 730 if e != nil { 731 return e 732 } 733 defer Close(h) 734 a := NsecToFiletime(TimespecToNsec(ts[0])) 735 w := NsecToFiletime(TimespecToNsec(ts[1])) 736 return SetFileTime(h, nil, &a, &w) 737} 738 739func Fsync(fd Handle) (err error) { 740 return FlushFileBuffers(fd) 741} 742 743func Chmod(path string, mode uint32) (err error) { 744 p, e := UTF16PtrFromString(path) 745 if e != nil { 746 return e 747 } 748 attrs, e := GetFileAttributes(p) 749 if e != nil { 750 return e 751 } 752 if mode&S_IWRITE != 0 { 753 attrs &^= FILE_ATTRIBUTE_READONLY 754 } else { 755 attrs |= FILE_ATTRIBUTE_READONLY 756 } 757 return SetFileAttributes(p, attrs) 758} 759 760func LoadGetSystemTimePreciseAsFileTime() error { 761 return procGetSystemTimePreciseAsFileTime.Find() 762} 763 764func LoadCancelIoEx() error { 765 return procCancelIoEx.Find() 766} 767 768func LoadSetFileCompletionNotificationModes() error { 769 return procSetFileCompletionNotificationModes.Find() 770} 771 772func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { 773 // Every other win32 array API takes arguments as "pointer, count", except for this function. So we 774 // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore 775 // trivially stub this ourselves. 776 777 var handlePtr *Handle 778 if len(handles) > 0 { 779 handlePtr = &handles[0] 780 } 781 return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) 782} 783 784// net api calls 785 786const socket_error = uintptr(^uint32(0)) 787 788//sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup 789//sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup 790//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 791//sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket 792//sys sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto 793//sys recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom 794//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt 795//sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt 796//sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind 797//sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect 798//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname 799//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername 800//sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen 801//sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown 802//sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket 803//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx 804//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs 805//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv 806//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend 807//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 808//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 809//sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW 810//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname 811//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname 812//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs 813//sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname 814//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W 815//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree 816//sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W 817//sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW 818//sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW 819//sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry 820//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo 821//sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes 822//sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW 823//sys WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult 824//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses 825//sys GetACP() (acp uint32) = kernel32.GetACP 826//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar 827 828// For testing: clients can set this flag to force 829// creation of IPv6 sockets to return EAFNOSUPPORT. 830var SocketDisableIPv6 bool 831 832type RawSockaddrInet4 struct { 833 Family uint16 834 Port uint16 835 Addr [4]byte /* in_addr */ 836 Zero [8]uint8 837} 838 839type RawSockaddrInet6 struct { 840 Family uint16 841 Port uint16 842 Flowinfo uint32 843 Addr [16]byte /* in6_addr */ 844 Scope_id uint32 845} 846 847type RawSockaddr struct { 848 Family uint16 849 Data [14]int8 850} 851 852type RawSockaddrAny struct { 853 Addr RawSockaddr 854 Pad [100]int8 855} 856 857type Sockaddr interface { 858 sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs 859} 860 861type SockaddrInet4 struct { 862 Port int 863 Addr [4]byte 864 raw RawSockaddrInet4 865} 866 867func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) { 868 if sa.Port < 0 || sa.Port > 0xFFFF { 869 return nil, 0, syscall.EINVAL 870 } 871 sa.raw.Family = AF_INET 872 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 873 p[0] = byte(sa.Port >> 8) 874 p[1] = byte(sa.Port) 875 for i := 0; i < len(sa.Addr); i++ { 876 sa.raw.Addr[i] = sa.Addr[i] 877 } 878 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 879} 880 881type SockaddrInet6 struct { 882 Port int 883 ZoneId uint32 884 Addr [16]byte 885 raw RawSockaddrInet6 886} 887 888func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { 889 if sa.Port < 0 || sa.Port > 0xFFFF { 890 return nil, 0, syscall.EINVAL 891 } 892 sa.raw.Family = AF_INET6 893 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 894 p[0] = byte(sa.Port >> 8) 895 p[1] = byte(sa.Port) 896 sa.raw.Scope_id = sa.ZoneId 897 for i := 0; i < len(sa.Addr); i++ { 898 sa.raw.Addr[i] = sa.Addr[i] 899 } 900 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 901} 902 903type RawSockaddrUnix struct { 904 Family uint16 905 Path [UNIX_PATH_MAX]int8 906} 907 908type SockaddrUnix struct { 909 Name string 910 raw RawSockaddrUnix 911} 912 913func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { 914 name := sa.Name 915 n := len(name) 916 if n > len(sa.raw.Path) { 917 return nil, 0, syscall.EINVAL 918 } 919 if n == len(sa.raw.Path) && name[0] != '@' { 920 return nil, 0, syscall.EINVAL 921 } 922 sa.raw.Family = AF_UNIX 923 for i := 0; i < n; i++ { 924 sa.raw.Path[i] = int8(name[i]) 925 } 926 // length is family (uint16), name, NUL. 927 sl := int32(2) 928 if n > 0 { 929 sl += int32(n) + 1 930 } 931 if sa.raw.Path[0] == '@' { 932 sa.raw.Path[0] = 0 933 // Don't count trailing NUL for abstract address. 934 sl-- 935 } 936 937 return unsafe.Pointer(&sa.raw), sl, nil 938} 939 940func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { 941 switch rsa.Addr.Family { 942 case AF_UNIX: 943 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) 944 sa := new(SockaddrUnix) 945 if pp.Path[0] == 0 { 946 // "Abstract" Unix domain socket. 947 // Rewrite leading NUL as @ for textual display. 948 // (This is the standard convention.) 949 // Not friendly to overwrite in place, 950 // but the callers below don't care. 951 pp.Path[0] = '@' 952 } 953 954 // Assume path ends at NUL. 955 // This is not technically the Linux semantics for 956 // abstract Unix domain sockets--they are supposed 957 // to be uninterpreted fixed-size binary blobs--but 958 // everyone uses this convention. 959 n := 0 960 for n < len(pp.Path) && pp.Path[n] != 0 { 961 n++ 962 } 963 bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] 964 sa.Name = string(bytes) 965 return sa, nil 966 967 case AF_INET: 968 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) 969 sa := new(SockaddrInet4) 970 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 971 sa.Port = int(p[0])<<8 + int(p[1]) 972 for i := 0; i < len(sa.Addr); i++ { 973 sa.Addr[i] = pp.Addr[i] 974 } 975 return sa, nil 976 977 case AF_INET6: 978 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) 979 sa := new(SockaddrInet6) 980 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 981 sa.Port = int(p[0])<<8 + int(p[1]) 982 sa.ZoneId = pp.Scope_id 983 for i := 0; i < len(sa.Addr); i++ { 984 sa.Addr[i] = pp.Addr[i] 985 } 986 return sa, nil 987 } 988 return nil, syscall.EAFNOSUPPORT 989} 990 991func Socket(domain, typ, proto int) (fd Handle, err error) { 992 if domain == AF_INET6 && SocketDisableIPv6 { 993 return InvalidHandle, syscall.EAFNOSUPPORT 994 } 995 return socket(int32(domain), int32(typ), int32(proto)) 996} 997 998func SetsockoptInt(fd Handle, level, opt int, value int) (err error) { 999 v := int32(value) 1000 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))) 1001} 1002 1003func Bind(fd Handle, sa Sockaddr) (err error) { 1004 ptr, n, err := sa.sockaddr() 1005 if err != nil { 1006 return err 1007 } 1008 return bind(fd, ptr, n) 1009} 1010 1011func Connect(fd Handle, sa Sockaddr) (err error) { 1012 ptr, n, err := sa.sockaddr() 1013 if err != nil { 1014 return err 1015 } 1016 return connect(fd, ptr, n) 1017} 1018 1019func Getsockname(fd Handle) (sa Sockaddr, err error) { 1020 var rsa RawSockaddrAny 1021 l := int32(unsafe.Sizeof(rsa)) 1022 if err = getsockname(fd, &rsa, &l); err != nil { 1023 return 1024 } 1025 return rsa.Sockaddr() 1026} 1027 1028func Getpeername(fd Handle) (sa Sockaddr, err error) { 1029 var rsa RawSockaddrAny 1030 l := int32(unsafe.Sizeof(rsa)) 1031 if err = getpeername(fd, &rsa, &l); err != nil { 1032 return 1033 } 1034 return rsa.Sockaddr() 1035} 1036 1037func Listen(s Handle, n int) (err error) { 1038 return listen(s, int32(n)) 1039} 1040 1041func Shutdown(fd Handle, how int) (err error) { 1042 return shutdown(fd, int32(how)) 1043} 1044 1045func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) { 1046 rsa, l, err := to.sockaddr() 1047 if err != nil { 1048 return err 1049 } 1050 return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine) 1051} 1052 1053func LoadGetAddrInfo() error { 1054 return procGetAddrInfoW.Find() 1055} 1056 1057var connectExFunc struct { 1058 once sync.Once 1059 addr uintptr 1060 err error 1061} 1062 1063func LoadConnectEx() error { 1064 connectExFunc.once.Do(func() { 1065 var s Handle 1066 s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) 1067 if connectExFunc.err != nil { 1068 return 1069 } 1070 defer CloseHandle(s) 1071 var n uint32 1072 connectExFunc.err = WSAIoctl(s, 1073 SIO_GET_EXTENSION_FUNCTION_POINTER, 1074 (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)), 1075 uint32(unsafe.Sizeof(WSAID_CONNECTEX)), 1076 (*byte)(unsafe.Pointer(&connectExFunc.addr)), 1077 uint32(unsafe.Sizeof(connectExFunc.addr)), 1078 &n, nil, 0) 1079 }) 1080 return connectExFunc.err 1081} 1082 1083func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) { 1084 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) 1085 if r1 == 0 { 1086 if e1 != 0 { 1087 err = error(e1) 1088 } else { 1089 err = syscall.EINVAL 1090 } 1091 } 1092 return 1093} 1094 1095func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error { 1096 err := LoadConnectEx() 1097 if err != nil { 1098 return errorspkg.New("failed to find ConnectEx: " + err.Error()) 1099 } 1100 ptr, n, err := sa.sockaddr() 1101 if err != nil { 1102 return err 1103 } 1104 return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) 1105} 1106 1107var sendRecvMsgFunc struct { 1108 once sync.Once 1109 sendAddr uintptr 1110 recvAddr uintptr 1111 err error 1112} 1113 1114func loadWSASendRecvMsg() error { 1115 sendRecvMsgFunc.once.Do(func() { 1116 var s Handle 1117 s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) 1118 if sendRecvMsgFunc.err != nil { 1119 return 1120 } 1121 defer CloseHandle(s) 1122 var n uint32 1123 sendRecvMsgFunc.err = WSAIoctl(s, 1124 SIO_GET_EXTENSION_FUNCTION_POINTER, 1125 (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), 1126 uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), 1127 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), 1128 uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), 1129 &n, nil, 0) 1130 if sendRecvMsgFunc.err != nil { 1131 return 1132 } 1133 sendRecvMsgFunc.err = WSAIoctl(s, 1134 SIO_GET_EXTENSION_FUNCTION_POINTER, 1135 (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), 1136 uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), 1137 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), 1138 uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), 1139 &n, nil, 0) 1140 }) 1141 return sendRecvMsgFunc.err 1142} 1143 1144func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { 1145 err := loadWSASendRecvMsg() 1146 if err != nil { 1147 return err 1148 } 1149 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))) 1150 if r1 == socket_error { 1151 err = errnoErr(e1) 1152 } 1153 return err 1154} 1155 1156func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { 1157 err := loadWSASendRecvMsg() 1158 if err != nil { 1159 return err 1160 } 1161 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) 1162 if r1 == socket_error { 1163 err = errnoErr(e1) 1164 } 1165 return err 1166} 1167 1168// Invented structures to support what package os expects. 1169type Rusage struct { 1170 CreationTime Filetime 1171 ExitTime Filetime 1172 KernelTime Filetime 1173 UserTime Filetime 1174} 1175 1176type WaitStatus struct { 1177 ExitCode uint32 1178} 1179 1180func (w WaitStatus) Exited() bool { return true } 1181 1182func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) } 1183 1184func (w WaitStatus) Signal() Signal { return -1 } 1185 1186func (w WaitStatus) CoreDump() bool { return false } 1187 1188func (w WaitStatus) Stopped() bool { return false } 1189 1190func (w WaitStatus) Continued() bool { return false } 1191 1192func (w WaitStatus) StopSignal() Signal { return -1 } 1193 1194func (w WaitStatus) Signaled() bool { return false } 1195 1196func (w WaitStatus) TrapCause() int { return -1 } 1197 1198// Timespec is an invented structure on Windows, but here for 1199// consistency with the corresponding package for other operating systems. 1200type Timespec struct { 1201 Sec int64 1202 Nsec int64 1203} 1204 1205func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } 1206 1207func NsecToTimespec(nsec int64) (ts Timespec) { 1208 ts.Sec = nsec / 1e9 1209 ts.Nsec = nsec % 1e9 1210 return 1211} 1212 1213// TODO(brainman): fix all needed for net 1214 1215func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS } 1216 1217func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { 1218 var rsa RawSockaddrAny 1219 l := int32(unsafe.Sizeof(rsa)) 1220 n32, err := recvfrom(fd, p, int32(flags), &rsa, &l) 1221 n = int(n32) 1222 if err != nil { 1223 return 1224 } 1225 from, err = rsa.Sockaddr() 1226 return 1227} 1228 1229func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { 1230 ptr, l, err := to.sockaddr() 1231 if err != nil { 1232 return err 1233 } 1234 return sendto(fd, p, int32(flags), ptr, l) 1235} 1236 1237func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS } 1238 1239// The Linger struct is wrong but we only noticed after Go 1. 1240// sysLinger is the real system call structure. 1241 1242// BUG(brainman): The definition of Linger is not appropriate for direct use 1243// with Setsockopt and Getsockopt. 1244// Use SetsockoptLinger instead. 1245 1246type Linger struct { 1247 Onoff int32 1248 Linger int32 1249} 1250 1251type sysLinger struct { 1252 Onoff uint16 1253 Linger uint16 1254} 1255 1256type IPMreq struct { 1257 Multiaddr [4]byte /* in_addr */ 1258 Interface [4]byte /* in_addr */ 1259} 1260 1261type IPv6Mreq struct { 1262 Multiaddr [16]byte /* in6_addr */ 1263 Interface uint32 1264} 1265 1266func GetsockoptInt(fd Handle, level, opt int) (int, error) { 1267 v := int32(0) 1268 l := int32(unsafe.Sizeof(v)) 1269 err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l) 1270 return int(v), err 1271} 1272 1273func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { 1274 sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)} 1275 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys))) 1276} 1277 1278func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) { 1279 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4) 1280} 1281func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) { 1282 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq))) 1283} 1284func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) { 1285 return syscall.EWINDOWS 1286} 1287 1288func Getpid() (pid int) { return int(GetCurrentProcessId()) } 1289 1290func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) { 1291 // NOTE(rsc): The Win32finddata struct is wrong for the system call: 1292 // the two paths are each one uint16 short. Use the correct struct, 1293 // a win32finddata1, and then copy the results out. 1294 // There is no loss of expressivity here, because the final 1295 // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that. 1296 // For Go 1.1, we might avoid the allocation of win32finddata1 here 1297 // by adding a final Bug [2]uint16 field to the struct and then 1298 // adjusting the fields in the result directly. 1299 var data1 win32finddata1 1300 handle, err = findFirstFile1(name, &data1) 1301 if err == nil { 1302 copyFindData(data, &data1) 1303 } 1304 return 1305} 1306 1307func FindNextFile(handle Handle, data *Win32finddata) (err error) { 1308 var data1 win32finddata1 1309 err = findNextFile1(handle, &data1) 1310 if err == nil { 1311 copyFindData(data, &data1) 1312 } 1313 return 1314} 1315 1316func getProcessEntry(pid int) (*ProcessEntry32, error) { 1317 snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) 1318 if err != nil { 1319 return nil, err 1320 } 1321 defer CloseHandle(snapshot) 1322 var procEntry ProcessEntry32 1323 procEntry.Size = uint32(unsafe.Sizeof(procEntry)) 1324 if err = Process32First(snapshot, &procEntry); err != nil { 1325 return nil, err 1326 } 1327 for { 1328 if procEntry.ProcessID == uint32(pid) { 1329 return &procEntry, nil 1330 } 1331 err = Process32Next(snapshot, &procEntry) 1332 if err != nil { 1333 return nil, err 1334 } 1335 } 1336} 1337 1338func Getppid() (ppid int) { 1339 pe, err := getProcessEntry(Getpid()) 1340 if err != nil { 1341 return -1 1342 } 1343 return int(pe.ParentProcessID) 1344} 1345 1346// TODO(brainman): fix all needed for os 1347func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS } 1348func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS } 1349func Symlink(path, link string) (err error) { return syscall.EWINDOWS } 1350 1351func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS } 1352func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1353func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1354func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS } 1355 1356func Getuid() (uid int) { return -1 } 1357func Geteuid() (euid int) { return -1 } 1358func Getgid() (gid int) { return -1 } 1359func Getegid() (egid int) { return -1 } 1360func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS } 1361 1362type Signal int 1363 1364func (s Signal) Signal() {} 1365 1366func (s Signal) String() string { 1367 if 0 <= s && int(s) < len(signals) { 1368 str := signals[s] 1369 if str != "" { 1370 return str 1371 } 1372 } 1373 return "signal " + itoa(int(s)) 1374} 1375 1376func LoadCreateSymbolicLink() error { 1377 return procCreateSymbolicLinkW.Find() 1378} 1379 1380// Readlink returns the destination of the named symbolic link. 1381func Readlink(path string, buf []byte) (n int, err error) { 1382 fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING, 1383 FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0) 1384 if err != nil { 1385 return -1, err 1386 } 1387 defer CloseHandle(fd) 1388 1389 rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE) 1390 var bytesReturned uint32 1391 err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) 1392 if err != nil { 1393 return -1, err 1394 } 1395 1396 rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) 1397 var s string 1398 switch rdb.ReparseTag { 1399 case IO_REPARSE_TAG_SYMLINK: 1400 data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1401 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1402 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1403 case IO_REPARSE_TAG_MOUNT_POINT: 1404 data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1405 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1406 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1407 default: 1408 // the path is not a symlink or junction but another type of reparse 1409 // point 1410 return -1, syscall.ENOENT 1411 } 1412 n = copy(buf, []byte(s)) 1413 1414 return n, nil 1415} 1416 1417// GUIDFromString parses a string in the form of 1418// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID. 1419func GUIDFromString(str string) (GUID, error) { 1420 guid := GUID{} 1421 str16, err := syscall.UTF16PtrFromString(str) 1422 if err != nil { 1423 return guid, err 1424 } 1425 err = clsidFromString(str16, &guid) 1426 if err != nil { 1427 return guid, err 1428 } 1429 return guid, nil 1430} 1431 1432// GenerateGUID creates a new random GUID. 1433func GenerateGUID() (GUID, error) { 1434 guid := GUID{} 1435 err := coCreateGuid(&guid) 1436 if err != nil { 1437 return guid, err 1438 } 1439 return guid, nil 1440} 1441 1442// String returns the canonical string form of the GUID, 1443// in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}". 1444func (guid GUID) String() string { 1445 var str [100]uint16 1446 chars := stringFromGUID2(&guid, &str[0], int32(len(str))) 1447 if chars <= 1 { 1448 return "" 1449 } 1450 return string(utf16.Decode(str[:chars-1])) 1451} 1452 1453// KnownFolderPath returns a well-known folder path for the current user, specified by one of 1454// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1455func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1456 return Token(0).KnownFolderPath(folderID, flags) 1457} 1458 1459// KnownFolderPath returns a well-known folder path for the user token, specified by one of 1460// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1461func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1462 var p *uint16 1463 err := shGetKnownFolderPath(folderID, flags, t, &p) 1464 if err != nil { 1465 return "", err 1466 } 1467 defer CoTaskMemFree(unsafe.Pointer(p)) 1468 return UTF16PtrToString(p), nil 1469} 1470 1471// RtlGetVersion returns the version of the underlying operating system, ignoring 1472// manifest semantics but is affected by the application compatibility layer. 1473func RtlGetVersion() *OsVersionInfoEx { 1474 info := &OsVersionInfoEx{} 1475 info.osVersionInfoSize = uint32(unsafe.Sizeof(*info)) 1476 // According to documentation, this function always succeeds. 1477 // The function doesn't even check the validity of the 1478 // osVersionInfoSize member. Disassembling ntdll.dll indicates 1479 // that the documentation is indeed correct about that. 1480 _ = rtlGetVersion(info) 1481 return info 1482} 1483 1484// RtlGetNtVersionNumbers returns the version of the underlying operating system, 1485// ignoring manifest semantics and the application compatibility layer. 1486func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) { 1487 rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber) 1488 buildNumber &= 0xffff 1489 return 1490} 1491 1492// GetProcessPreferredUILanguages retrieves the process preferred UI languages. 1493func GetProcessPreferredUILanguages(flags uint32) ([]string, error) { 1494 return getUILanguages(flags, getProcessPreferredUILanguages) 1495} 1496 1497// GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread. 1498func GetThreadPreferredUILanguages(flags uint32) ([]string, error) { 1499 return getUILanguages(flags, getThreadPreferredUILanguages) 1500} 1501 1502// GetUserPreferredUILanguages retrieves information about the user preferred UI languages. 1503func GetUserPreferredUILanguages(flags uint32) ([]string, error) { 1504 return getUILanguages(flags, getUserPreferredUILanguages) 1505} 1506 1507// GetSystemPreferredUILanguages retrieves the system preferred UI languages. 1508func GetSystemPreferredUILanguages(flags uint32) ([]string, error) { 1509 return getUILanguages(flags, getSystemPreferredUILanguages) 1510} 1511 1512func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) { 1513 size := uint32(128) 1514 for { 1515 var numLanguages uint32 1516 buf := make([]uint16, size) 1517 err := f(flags, &numLanguages, &buf[0], &size) 1518 if err == ERROR_INSUFFICIENT_BUFFER { 1519 continue 1520 } 1521 if err != nil { 1522 return nil, err 1523 } 1524 buf = buf[:size] 1525 if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0" 1526 return []string{}, nil 1527 } 1528 if buf[len(buf)-1] == 0 { 1529 buf = buf[:len(buf)-1] // remove terminating null 1530 } 1531 languages := make([]string, 0, numLanguages) 1532 from := 0 1533 for i, c := range buf { 1534 if c == 0 { 1535 languages = append(languages, string(utf16.Decode(buf[from:i]))) 1536 from = i + 1 1537 } 1538 } 1539 return languages, nil 1540 } 1541} 1542 1543func SetConsoleCursorPosition(console Handle, position Coord) error { 1544 return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position)))) 1545} 1546 1547func (s NTStatus) Errno() syscall.Errno { 1548 return rtlNtStatusToDosErrorNoTeb(s) 1549} 1550 1551func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } 1552 1553func (s NTStatus) Error() string { 1554 b := make([]uint16, 300) 1555 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) 1556 if err != nil { 1557 return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s)) 1558 } 1559 // trim terminating \r and \n 1560 for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { 1561 } 1562 return string(utf16.Decode(b[:n])) 1563} 1564 1565// NewNTUnicodeString returns a new NTUnicodeString structure for use with native 1566// NT APIs that work over the NTUnicodeString type. Note that most Windows APIs 1567// do not use NTUnicodeString, and instead UTF16PtrFromString should be used for 1568// the more common *uint16 string type. 1569func NewNTUnicodeString(s string) (*NTUnicodeString, error) { 1570 var u NTUnicodeString 1571 s16, err := UTF16PtrFromString(s) 1572 if err != nil { 1573 return nil, err 1574 } 1575 RtlInitUnicodeString(&u, s16) 1576 return &u, nil 1577} 1578 1579// Slice returns a uint16 slice that aliases the data in the NTUnicodeString. 1580func (s *NTUnicodeString) Slice() []uint16 { 1581 var slice []uint16 1582 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1583 hdr.Data = unsafe.Pointer(s.Buffer) 1584 hdr.Len = int(s.Length) 1585 hdr.Cap = int(s.MaximumLength) 1586 return slice 1587} 1588 1589func (s *NTUnicodeString) String() string { 1590 return UTF16ToString(s.Slice()) 1591} 1592 1593// NewNTString returns a new NTString structure for use with native 1594// NT APIs that work over the NTString type. Note that most Windows APIs 1595// do not use NTString, and instead UTF16PtrFromString should be used for 1596// the more common *uint16 string type. 1597func NewNTString(s string) (*NTString, error) { 1598 var nts NTString 1599 s8, err := BytePtrFromString(s) 1600 if err != nil { 1601 return nil, err 1602 } 1603 RtlInitString(&nts, s8) 1604 return &nts, nil 1605} 1606 1607// Slice returns a byte slice that aliases the data in the NTString. 1608func (s *NTString) Slice() []byte { 1609 var slice []byte 1610 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1611 hdr.Data = unsafe.Pointer(s.Buffer) 1612 hdr.Len = int(s.Length) 1613 hdr.Cap = int(s.MaximumLength) 1614 return slice 1615} 1616 1617func (s *NTString) String() string { 1618 return ByteSliceToString(s.Slice()) 1619} 1620 1621// FindResource resolves a resource of the given name and resource type. 1622func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) { 1623 var namePtr, resTypePtr uintptr 1624 var name16, resType16 *uint16 1625 var err error 1626 resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) { 1627 switch v := i.(type) { 1628 case string: 1629 *keep, err = UTF16PtrFromString(v) 1630 if err != nil { 1631 return 0, err 1632 } 1633 return uintptr(unsafe.Pointer(*keep)), nil 1634 case ResourceID: 1635 return uintptr(v), nil 1636 } 1637 return 0, errorspkg.New("parameter must be a ResourceID or a string") 1638 } 1639 namePtr, err = resolvePtr(name, &name16) 1640 if err != nil { 1641 return 0, err 1642 } 1643 resTypePtr, err = resolvePtr(resType, &resType16) 1644 if err != nil { 1645 return 0, err 1646 } 1647 resInfo, err := findResource(module, namePtr, resTypePtr) 1648 runtime.KeepAlive(name16) 1649 runtime.KeepAlive(resType16) 1650 return resInfo, err 1651} 1652 1653func LoadResourceData(module, resInfo Handle) (data []byte, err error) { 1654 size, err := SizeofResource(module, resInfo) 1655 if err != nil { 1656 return 1657 } 1658 resData, err := LoadResource(module, resInfo) 1659 if err != nil { 1660 return 1661 } 1662 ptr, err := LockResource(resData) 1663 if err != nil { 1664 return 1665 } 1666 h := (*unsafeheader.Slice)(unsafe.Pointer(&data)) 1667 h.Data = unsafe.Pointer(ptr) 1668 h.Len = int(size) 1669 h.Cap = int(size) 1670 return 1671} 1672