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