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 CreateProcessAsUser(token Token, appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (err error) = advapi32.CreateProcessAsUserW 224//sys initializeProcThreadAttributeList(attrlist *ProcThreadAttributeList, attrcount uint32, flags uint32, size *uintptr) (err error) = InitializeProcThreadAttributeList 225//sys deleteProcThreadAttributeList(attrlist *ProcThreadAttributeList) = DeleteProcThreadAttributeList 226//sys updateProcThreadAttribute(attrlist *ProcThreadAttributeList, flags uint32, attr uintptr, value unsafe.Pointer, size uintptr, prevvalue unsafe.Pointer, returnedsize *uintptr) (err error) = UpdateProcThreadAttribute 227//sys OpenProcess(desiredAccess uint32, inheritHandle bool, processId uint32) (handle Handle, err error) 228//sys ShellExecute(hwnd Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int32) (err error) [failretval<=32] = shell32.ShellExecuteW 229//sys GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) = user32.GetWindowThreadProcessId 230//sys GetShellWindow() (shellWindow HWND) = user32.GetShellWindow 231//sys MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) [failretval==0] = user32.MessageBoxW 232//sys ExitWindowsEx(flags uint32, reason uint32) (err error) = user32.ExitWindowsEx 233//sys shGetKnownFolderPath(id *KNOWNFOLDERID, flags uint32, token Token, path **uint16) (ret error) = shell32.SHGetKnownFolderPath 234//sys TerminateProcess(handle Handle, exitcode uint32) (err error) 235//sys GetExitCodeProcess(handle Handle, exitcode *uint32) (err error) 236//sys GetStartupInfo(startupInfo *StartupInfo) (err error) = GetStartupInfoW 237//sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error) 238//sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error) 239//sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] 240//sys waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects 241//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW 242//sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error) 243//sys GetFileType(filehandle Handle) (n uint32, err error) 244//sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW 245//sys CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext 246//sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom 247//sys GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW 248//sys FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW 249//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW 250//sys SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW 251//sys CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock 252//sys DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock 253//sys getTickCount64() (ms uint64) = kernel32.GetTickCount64 254//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error) 255//sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW 256//sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW 257//sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW 258//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW 259//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW 260//sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0] 261//sys LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error) 262//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error) 263//sys FlushFileBuffers(handle Handle) (err error) 264//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW 265//sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW 266//sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW 267//sys GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW 268//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 269//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error) 270//sys UnmapViewOfFile(addr uintptr) (err error) 271//sys FlushViewOfFile(addr uintptr, length uintptr) (err error) 272//sys VirtualLock(addr uintptr, length uintptr) (err error) 273//sys VirtualUnlock(addr uintptr, length uintptr) (err error) 274//sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc 275//sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree 276//sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect 277//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile 278//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW 279//sys FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW 280//sys FindNextChangeNotification(handle Handle) (err error) 281//sys FindCloseChangeNotification(handle Handle) (err error) 282//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW 283//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore 284//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore 285//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore 286//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore 287//sys CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore 288//sys CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext 289//sys PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore 290//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain 291//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain 292//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext 293//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext 294//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy 295//sys CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW 296//sys CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension 297//sys CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore 298//sys CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore 299//sys CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey 300//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 301//sys CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject 302//sys CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData 303//sys CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData 304//sys WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx 305//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW 306//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey 307//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 308//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW 309//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW 310//sys RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue 311//sys GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId 312//sys ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId 313//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode 314//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode 315//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo 316//sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition 317//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW 318//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW 319//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot 320//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW 321//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW 322//sys Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error) 323//sys Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error) 324//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error) 325// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. 326//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW 327//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW 328//sys GetCurrentThreadId() (id uint32) 329//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW 330//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW 331//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW 332//sys SetEvent(event Handle) (err error) = kernel32.SetEvent 333//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent 334//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent 335//sys CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW 336//sys CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW 337//sys OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW 338//sys ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex 339//sys SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx 340//sys CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW 341//sys AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject 342//sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject 343//sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode 344//sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread 345//sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass 346//sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass 347//sys QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject 348//sys SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error) 349//sys GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error) 350//sys GetProcessId(process Handle) (id uint32, err error) 351//sys QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW 352//sys OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error) 353//sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost 354//sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32) 355//sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error) 356//sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 357//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 358 359// Volume Management Functions 360//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW 361//sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW 362//sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW 363//sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW 364//sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW 365//sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW 366//sys FindVolumeClose(findVolume Handle) (err error) 367//sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) 368//sys GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW 369//sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW 370//sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] 371//sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW 372//sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW 373//sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW 374//sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW 375//sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW 376//sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW 377//sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW 378//sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW 379//sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW 380//sys InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW 381//sys SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters 382//sys GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters 383//sys clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString 384//sys stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2 385//sys coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid 386//sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree 387//sys CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx 388//sys CoUninitialize() = ole32.CoUninitialize 389//sys CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject 390//sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages 391//sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages 392//sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages 393//sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages 394//sys findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW 395//sys SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource 396//sys LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource 397//sys LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource 398 399// Process Status API (PSAPI) 400//sys EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses 401//sys EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules 402//sys EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx 403//sys GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation 404//sys GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW 405//sys GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW 406 407// NT Native APIs 408//sys rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb 409//sys rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion 410//sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers 411//sys RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb 412//sys RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString 413//sys RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString 414//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 415//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 416//sys RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus 417//sys RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus 418//sys RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl 419//sys NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess 420//sys NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess 421 422// syscall interface implementation for other packages 423 424// GetCurrentProcess returns the handle for the current process. 425// It is a pseudo handle that does not need to be closed. 426// The returned error is always nil. 427// 428// Deprecated: use CurrentProcess for the same Handle without the nil 429// error. 430func GetCurrentProcess() (Handle, error) { 431 return CurrentProcess(), nil 432} 433 434// CurrentProcess returns the handle for the current process. 435// It is a pseudo handle that does not need to be closed. 436func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) } 437 438// GetCurrentThread returns the handle for the current thread. 439// It is a pseudo handle that does not need to be closed. 440// The returned error is always nil. 441// 442// Deprecated: use CurrentThread for the same Handle without the nil 443// error. 444func GetCurrentThread() (Handle, error) { 445 return CurrentThread(), nil 446} 447 448// CurrentThread returns the handle for the current thread. 449// It is a pseudo handle that does not need to be closed. 450func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) } 451 452// GetProcAddressByOrdinal retrieves the address of the exported 453// function from module by ordinal. 454func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { 455 r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) 456 proc = uintptr(r0) 457 if proc == 0 { 458 err = errnoErr(e1) 459 } 460 return 461} 462 463func Exit(code int) { ExitProcess(uint32(code)) } 464 465func makeInheritSa() *SecurityAttributes { 466 var sa SecurityAttributes 467 sa.Length = uint32(unsafe.Sizeof(sa)) 468 sa.InheritHandle = 1 469 return &sa 470} 471 472func Open(path string, mode int, perm uint32) (fd Handle, err error) { 473 if len(path) == 0 { 474 return InvalidHandle, ERROR_FILE_NOT_FOUND 475 } 476 pathp, err := UTF16PtrFromString(path) 477 if err != nil { 478 return InvalidHandle, err 479 } 480 var access uint32 481 switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { 482 case O_RDONLY: 483 access = GENERIC_READ 484 case O_WRONLY: 485 access = GENERIC_WRITE 486 case O_RDWR: 487 access = GENERIC_READ | GENERIC_WRITE 488 } 489 if mode&O_CREAT != 0 { 490 access |= GENERIC_WRITE 491 } 492 if mode&O_APPEND != 0 { 493 access &^= GENERIC_WRITE 494 access |= FILE_APPEND_DATA 495 } 496 sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE) 497 var sa *SecurityAttributes 498 if mode&O_CLOEXEC == 0 { 499 sa = makeInheritSa() 500 } 501 var createmode uint32 502 switch { 503 case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): 504 createmode = CREATE_NEW 505 case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): 506 createmode = CREATE_ALWAYS 507 case mode&O_CREAT == O_CREAT: 508 createmode = OPEN_ALWAYS 509 case mode&O_TRUNC == O_TRUNC: 510 createmode = TRUNCATE_EXISTING 511 default: 512 createmode = OPEN_EXISTING 513 } 514 var attrs uint32 = FILE_ATTRIBUTE_NORMAL 515 if perm&S_IWRITE == 0 { 516 attrs = FILE_ATTRIBUTE_READONLY 517 } 518 h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) 519 return h, e 520} 521 522func Read(fd Handle, p []byte) (n int, err error) { 523 var done uint32 524 e := ReadFile(fd, p, &done, nil) 525 if e != nil { 526 if e == ERROR_BROKEN_PIPE { 527 // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin 528 return 0, nil 529 } 530 return 0, e 531 } 532 if raceenabled { 533 if done > 0 { 534 raceWriteRange(unsafe.Pointer(&p[0]), int(done)) 535 } 536 raceAcquire(unsafe.Pointer(&ioSync)) 537 } 538 return int(done), nil 539} 540 541func Write(fd Handle, p []byte) (n int, err error) { 542 if raceenabled { 543 raceReleaseMerge(unsafe.Pointer(&ioSync)) 544 } 545 var done uint32 546 e := WriteFile(fd, p, &done, nil) 547 if e != nil { 548 return 0, e 549 } 550 if raceenabled && done > 0 { 551 raceReadRange(unsafe.Pointer(&p[0]), int(done)) 552 } 553 return int(done), nil 554} 555 556var ioSync int64 557 558func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) { 559 var w uint32 560 switch whence { 561 case 0: 562 w = FILE_BEGIN 563 case 1: 564 w = FILE_CURRENT 565 case 2: 566 w = FILE_END 567 } 568 hi := int32(offset >> 32) 569 lo := int32(offset) 570 // use GetFileType to check pipe, pipe can't do seek 571 ft, _ := GetFileType(fd) 572 if ft == FILE_TYPE_PIPE { 573 return 0, syscall.EPIPE 574 } 575 rlo, e := SetFilePointer(fd, lo, &hi, w) 576 if e != nil { 577 return 0, e 578 } 579 return int64(hi)<<32 + int64(rlo), nil 580} 581 582func Close(fd Handle) (err error) { 583 return CloseHandle(fd) 584} 585 586var ( 587 Stdin = getStdHandle(STD_INPUT_HANDLE) 588 Stdout = getStdHandle(STD_OUTPUT_HANDLE) 589 Stderr = getStdHandle(STD_ERROR_HANDLE) 590) 591 592func getStdHandle(stdhandle uint32) (fd Handle) { 593 r, _ := GetStdHandle(stdhandle) 594 CloseOnExec(r) 595 return r 596} 597 598const ImplementsGetwd = true 599 600func Getwd() (wd string, err error) { 601 b := make([]uint16, 300) 602 n, e := GetCurrentDirectory(uint32(len(b)), &b[0]) 603 if e != nil { 604 return "", e 605 } 606 return string(utf16.Decode(b[0:n])), nil 607} 608 609func Chdir(path string) (err error) { 610 pathp, err := UTF16PtrFromString(path) 611 if err != nil { 612 return err 613 } 614 return SetCurrentDirectory(pathp) 615} 616 617func Mkdir(path string, mode uint32) (err error) { 618 pathp, err := UTF16PtrFromString(path) 619 if err != nil { 620 return err 621 } 622 return CreateDirectory(pathp, nil) 623} 624 625func Rmdir(path string) (err error) { 626 pathp, err := UTF16PtrFromString(path) 627 if err != nil { 628 return err 629 } 630 return RemoveDirectory(pathp) 631} 632 633func Unlink(path string) (err error) { 634 pathp, err := UTF16PtrFromString(path) 635 if err != nil { 636 return err 637 } 638 return DeleteFile(pathp) 639} 640 641func Rename(oldpath, newpath string) (err error) { 642 from, err := UTF16PtrFromString(oldpath) 643 if err != nil { 644 return err 645 } 646 to, err := UTF16PtrFromString(newpath) 647 if err != nil { 648 return err 649 } 650 return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) 651} 652 653func ComputerName() (name string, err error) { 654 var n uint32 = MAX_COMPUTERNAME_LENGTH + 1 655 b := make([]uint16, n) 656 e := GetComputerName(&b[0], &n) 657 if e != nil { 658 return "", e 659 } 660 return string(utf16.Decode(b[0:n])), nil 661} 662 663func DurationSinceBoot() time.Duration { 664 return time.Duration(getTickCount64()) * time.Millisecond 665} 666 667func Ftruncate(fd Handle, length int64) (err error) { 668 curoffset, e := Seek(fd, 0, 1) 669 if e != nil { 670 return e 671 } 672 defer Seek(fd, curoffset, 0) 673 _, e = Seek(fd, length, 0) 674 if e != nil { 675 return e 676 } 677 e = SetEndOfFile(fd) 678 if e != nil { 679 return e 680 } 681 return nil 682} 683 684func Gettimeofday(tv *Timeval) (err error) { 685 var ft Filetime 686 GetSystemTimeAsFileTime(&ft) 687 *tv = NsecToTimeval(ft.Nanoseconds()) 688 return nil 689} 690 691func Pipe(p []Handle) (err error) { 692 if len(p) != 2 { 693 return syscall.EINVAL 694 } 695 var r, w Handle 696 e := CreatePipe(&r, &w, makeInheritSa(), 0) 697 if e != nil { 698 return e 699 } 700 p[0] = r 701 p[1] = w 702 return nil 703} 704 705func Utimes(path string, tv []Timeval) (err error) { 706 if len(tv) != 2 { 707 return syscall.EINVAL 708 } 709 pathp, e := UTF16PtrFromString(path) 710 if e != nil { 711 return e 712 } 713 h, e := CreateFile(pathp, 714 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 715 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 716 if e != nil { 717 return e 718 } 719 defer Close(h) 720 a := NsecToFiletime(tv[0].Nanoseconds()) 721 w := NsecToFiletime(tv[1].Nanoseconds()) 722 return SetFileTime(h, nil, &a, &w) 723} 724 725func UtimesNano(path string, ts []Timespec) (err error) { 726 if len(ts) != 2 { 727 return syscall.EINVAL 728 } 729 pathp, e := UTF16PtrFromString(path) 730 if e != nil { 731 return e 732 } 733 h, e := CreateFile(pathp, 734 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 735 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 736 if e != nil { 737 return e 738 } 739 defer Close(h) 740 a := NsecToFiletime(TimespecToNsec(ts[0])) 741 w := NsecToFiletime(TimespecToNsec(ts[1])) 742 return SetFileTime(h, nil, &a, &w) 743} 744 745func Fsync(fd Handle) (err error) { 746 return FlushFileBuffers(fd) 747} 748 749func Chmod(path string, mode uint32) (err error) { 750 p, e := UTF16PtrFromString(path) 751 if e != nil { 752 return e 753 } 754 attrs, e := GetFileAttributes(p) 755 if e != nil { 756 return e 757 } 758 if mode&S_IWRITE != 0 { 759 attrs &^= FILE_ATTRIBUTE_READONLY 760 } else { 761 attrs |= FILE_ATTRIBUTE_READONLY 762 } 763 return SetFileAttributes(p, attrs) 764} 765 766func LoadGetSystemTimePreciseAsFileTime() error { 767 return procGetSystemTimePreciseAsFileTime.Find() 768} 769 770func LoadCancelIoEx() error { 771 return procCancelIoEx.Find() 772} 773 774func LoadSetFileCompletionNotificationModes() error { 775 return procSetFileCompletionNotificationModes.Find() 776} 777 778func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { 779 // Every other win32 array API takes arguments as "pointer, count", except for this function. So we 780 // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore 781 // trivially stub this ourselves. 782 783 var handlePtr *Handle 784 if len(handles) > 0 { 785 handlePtr = &handles[0] 786 } 787 return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) 788} 789 790// net api calls 791 792const socket_error = uintptr(^uint32(0)) 793 794//sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup 795//sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup 796//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 797//sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket 798//sys sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto 799//sys recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom 800//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt 801//sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt 802//sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind 803//sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect 804//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname 805//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername 806//sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen 807//sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown 808//sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket 809//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx 810//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs 811//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv 812//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend 813//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 814//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 815//sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW 816//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname 817//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname 818//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs 819//sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname 820//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W 821//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree 822//sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W 823//sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW 824//sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW 825//sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry 826//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo 827//sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes 828//sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW 829//sys WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult 830//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses 831//sys GetACP() (acp uint32) = kernel32.GetACP 832//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar 833 834// For testing: clients can set this flag to force 835// creation of IPv6 sockets to return EAFNOSUPPORT. 836var SocketDisableIPv6 bool 837 838type RawSockaddrInet4 struct { 839 Family uint16 840 Port uint16 841 Addr [4]byte /* in_addr */ 842 Zero [8]uint8 843} 844 845type RawSockaddrInet6 struct { 846 Family uint16 847 Port uint16 848 Flowinfo uint32 849 Addr [16]byte /* in6_addr */ 850 Scope_id uint32 851} 852 853type RawSockaddr struct { 854 Family uint16 855 Data [14]int8 856} 857 858type RawSockaddrAny struct { 859 Addr RawSockaddr 860 Pad [100]int8 861} 862 863type Sockaddr interface { 864 sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs 865} 866 867type SockaddrInet4 struct { 868 Port int 869 Addr [4]byte 870 raw RawSockaddrInet4 871} 872 873func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) { 874 if sa.Port < 0 || sa.Port > 0xFFFF { 875 return nil, 0, syscall.EINVAL 876 } 877 sa.raw.Family = AF_INET 878 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 879 p[0] = byte(sa.Port >> 8) 880 p[1] = byte(sa.Port) 881 for i := 0; i < len(sa.Addr); i++ { 882 sa.raw.Addr[i] = sa.Addr[i] 883 } 884 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 885} 886 887type SockaddrInet6 struct { 888 Port int 889 ZoneId uint32 890 Addr [16]byte 891 raw RawSockaddrInet6 892} 893 894func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { 895 if sa.Port < 0 || sa.Port > 0xFFFF { 896 return nil, 0, syscall.EINVAL 897 } 898 sa.raw.Family = AF_INET6 899 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 900 p[0] = byte(sa.Port >> 8) 901 p[1] = byte(sa.Port) 902 sa.raw.Scope_id = sa.ZoneId 903 for i := 0; i < len(sa.Addr); i++ { 904 sa.raw.Addr[i] = sa.Addr[i] 905 } 906 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 907} 908 909type RawSockaddrUnix struct { 910 Family uint16 911 Path [UNIX_PATH_MAX]int8 912} 913 914type SockaddrUnix struct { 915 Name string 916 raw RawSockaddrUnix 917} 918 919func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { 920 name := sa.Name 921 n := len(name) 922 if n > len(sa.raw.Path) { 923 return nil, 0, syscall.EINVAL 924 } 925 if n == len(sa.raw.Path) && name[0] != '@' { 926 return nil, 0, syscall.EINVAL 927 } 928 sa.raw.Family = AF_UNIX 929 for i := 0; i < n; i++ { 930 sa.raw.Path[i] = int8(name[i]) 931 } 932 // length is family (uint16), name, NUL. 933 sl := int32(2) 934 if n > 0 { 935 sl += int32(n) + 1 936 } 937 if sa.raw.Path[0] == '@' { 938 sa.raw.Path[0] = 0 939 // Don't count trailing NUL for abstract address. 940 sl-- 941 } 942 943 return unsafe.Pointer(&sa.raw), sl, nil 944} 945 946func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { 947 switch rsa.Addr.Family { 948 case AF_UNIX: 949 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) 950 sa := new(SockaddrUnix) 951 if pp.Path[0] == 0 { 952 // "Abstract" Unix domain socket. 953 // Rewrite leading NUL as @ for textual display. 954 // (This is the standard convention.) 955 // Not friendly to overwrite in place, 956 // but the callers below don't care. 957 pp.Path[0] = '@' 958 } 959 960 // Assume path ends at NUL. 961 // This is not technically the Linux semantics for 962 // abstract Unix domain sockets--they are supposed 963 // to be uninterpreted fixed-size binary blobs--but 964 // everyone uses this convention. 965 n := 0 966 for n < len(pp.Path) && pp.Path[n] != 0 { 967 n++ 968 } 969 bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] 970 sa.Name = string(bytes) 971 return sa, nil 972 973 case AF_INET: 974 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) 975 sa := new(SockaddrInet4) 976 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 977 sa.Port = int(p[0])<<8 + int(p[1]) 978 for i := 0; i < len(sa.Addr); i++ { 979 sa.Addr[i] = pp.Addr[i] 980 } 981 return sa, nil 982 983 case AF_INET6: 984 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) 985 sa := new(SockaddrInet6) 986 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 987 sa.Port = int(p[0])<<8 + int(p[1]) 988 sa.ZoneId = pp.Scope_id 989 for i := 0; i < len(sa.Addr); i++ { 990 sa.Addr[i] = pp.Addr[i] 991 } 992 return sa, nil 993 } 994 return nil, syscall.EAFNOSUPPORT 995} 996 997func Socket(domain, typ, proto int) (fd Handle, err error) { 998 if domain == AF_INET6 && SocketDisableIPv6 { 999 return InvalidHandle, syscall.EAFNOSUPPORT 1000 } 1001 return socket(int32(domain), int32(typ), int32(proto)) 1002} 1003 1004func SetsockoptInt(fd Handle, level, opt int, value int) (err error) { 1005 v := int32(value) 1006 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))) 1007} 1008 1009func Bind(fd Handle, sa Sockaddr) (err error) { 1010 ptr, n, err := sa.sockaddr() 1011 if err != nil { 1012 return err 1013 } 1014 return bind(fd, ptr, n) 1015} 1016 1017func Connect(fd Handle, sa Sockaddr) (err error) { 1018 ptr, n, err := sa.sockaddr() 1019 if err != nil { 1020 return err 1021 } 1022 return connect(fd, ptr, n) 1023} 1024 1025func Getsockname(fd Handle) (sa Sockaddr, err error) { 1026 var rsa RawSockaddrAny 1027 l := int32(unsafe.Sizeof(rsa)) 1028 if err = getsockname(fd, &rsa, &l); err != nil { 1029 return 1030 } 1031 return rsa.Sockaddr() 1032} 1033 1034func Getpeername(fd Handle) (sa Sockaddr, err error) { 1035 var rsa RawSockaddrAny 1036 l := int32(unsafe.Sizeof(rsa)) 1037 if err = getpeername(fd, &rsa, &l); err != nil { 1038 return 1039 } 1040 return rsa.Sockaddr() 1041} 1042 1043func Listen(s Handle, n int) (err error) { 1044 return listen(s, int32(n)) 1045} 1046 1047func Shutdown(fd Handle, how int) (err error) { 1048 return shutdown(fd, int32(how)) 1049} 1050 1051func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) { 1052 rsa, l, err := to.sockaddr() 1053 if err != nil { 1054 return err 1055 } 1056 return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine) 1057} 1058 1059func LoadGetAddrInfo() error { 1060 return procGetAddrInfoW.Find() 1061} 1062 1063var connectExFunc struct { 1064 once sync.Once 1065 addr uintptr 1066 err error 1067} 1068 1069func LoadConnectEx() error { 1070 connectExFunc.once.Do(func() { 1071 var s Handle 1072 s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) 1073 if connectExFunc.err != nil { 1074 return 1075 } 1076 defer CloseHandle(s) 1077 var n uint32 1078 connectExFunc.err = WSAIoctl(s, 1079 SIO_GET_EXTENSION_FUNCTION_POINTER, 1080 (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)), 1081 uint32(unsafe.Sizeof(WSAID_CONNECTEX)), 1082 (*byte)(unsafe.Pointer(&connectExFunc.addr)), 1083 uint32(unsafe.Sizeof(connectExFunc.addr)), 1084 &n, nil, 0) 1085 }) 1086 return connectExFunc.err 1087} 1088 1089func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) { 1090 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) 1091 if r1 == 0 { 1092 if e1 != 0 { 1093 err = error(e1) 1094 } else { 1095 err = syscall.EINVAL 1096 } 1097 } 1098 return 1099} 1100 1101func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error { 1102 err := LoadConnectEx() 1103 if err != nil { 1104 return errorspkg.New("failed to find ConnectEx: " + err.Error()) 1105 } 1106 ptr, n, err := sa.sockaddr() 1107 if err != nil { 1108 return err 1109 } 1110 return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) 1111} 1112 1113var sendRecvMsgFunc struct { 1114 once sync.Once 1115 sendAddr uintptr 1116 recvAddr uintptr 1117 err error 1118} 1119 1120func loadWSASendRecvMsg() error { 1121 sendRecvMsgFunc.once.Do(func() { 1122 var s Handle 1123 s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) 1124 if sendRecvMsgFunc.err != nil { 1125 return 1126 } 1127 defer CloseHandle(s) 1128 var n uint32 1129 sendRecvMsgFunc.err = WSAIoctl(s, 1130 SIO_GET_EXTENSION_FUNCTION_POINTER, 1131 (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), 1132 uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), 1133 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), 1134 uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), 1135 &n, nil, 0) 1136 if sendRecvMsgFunc.err != nil { 1137 return 1138 } 1139 sendRecvMsgFunc.err = WSAIoctl(s, 1140 SIO_GET_EXTENSION_FUNCTION_POINTER, 1141 (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), 1142 uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), 1143 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), 1144 uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), 1145 &n, nil, 0) 1146 }) 1147 return sendRecvMsgFunc.err 1148} 1149 1150func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { 1151 err := loadWSASendRecvMsg() 1152 if err != nil { 1153 return err 1154 } 1155 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))) 1156 if r1 == socket_error { 1157 err = errnoErr(e1) 1158 } 1159 return err 1160} 1161 1162func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { 1163 err := loadWSASendRecvMsg() 1164 if err != nil { 1165 return err 1166 } 1167 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) 1168 if r1 == socket_error { 1169 err = errnoErr(e1) 1170 } 1171 return err 1172} 1173 1174// Invented structures to support what package os expects. 1175type Rusage struct { 1176 CreationTime Filetime 1177 ExitTime Filetime 1178 KernelTime Filetime 1179 UserTime Filetime 1180} 1181 1182type WaitStatus struct { 1183 ExitCode uint32 1184} 1185 1186func (w WaitStatus) Exited() bool { return true } 1187 1188func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) } 1189 1190func (w WaitStatus) Signal() Signal { return -1 } 1191 1192func (w WaitStatus) CoreDump() bool { return false } 1193 1194func (w WaitStatus) Stopped() bool { return false } 1195 1196func (w WaitStatus) Continued() bool { return false } 1197 1198func (w WaitStatus) StopSignal() Signal { return -1 } 1199 1200func (w WaitStatus) Signaled() bool { return false } 1201 1202func (w WaitStatus) TrapCause() int { return -1 } 1203 1204// Timespec is an invented structure on Windows, but here for 1205// consistency with the corresponding package for other operating systems. 1206type Timespec struct { 1207 Sec int64 1208 Nsec int64 1209} 1210 1211func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } 1212 1213func NsecToTimespec(nsec int64) (ts Timespec) { 1214 ts.Sec = nsec / 1e9 1215 ts.Nsec = nsec % 1e9 1216 return 1217} 1218 1219// TODO(brainman): fix all needed for net 1220 1221func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS } 1222 1223func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { 1224 var rsa RawSockaddrAny 1225 l := int32(unsafe.Sizeof(rsa)) 1226 n32, err := recvfrom(fd, p, int32(flags), &rsa, &l) 1227 n = int(n32) 1228 if err != nil { 1229 return 1230 } 1231 from, err = rsa.Sockaddr() 1232 return 1233} 1234 1235func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { 1236 ptr, l, err := to.sockaddr() 1237 if err != nil { 1238 return err 1239 } 1240 return sendto(fd, p, int32(flags), ptr, l) 1241} 1242 1243func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS } 1244 1245// The Linger struct is wrong but we only noticed after Go 1. 1246// sysLinger is the real system call structure. 1247 1248// BUG(brainman): The definition of Linger is not appropriate for direct use 1249// with Setsockopt and Getsockopt. 1250// Use SetsockoptLinger instead. 1251 1252type Linger struct { 1253 Onoff int32 1254 Linger int32 1255} 1256 1257type sysLinger struct { 1258 Onoff uint16 1259 Linger uint16 1260} 1261 1262type IPMreq struct { 1263 Multiaddr [4]byte /* in_addr */ 1264 Interface [4]byte /* in_addr */ 1265} 1266 1267type IPv6Mreq struct { 1268 Multiaddr [16]byte /* in6_addr */ 1269 Interface uint32 1270} 1271 1272func GetsockoptInt(fd Handle, level, opt int) (int, error) { 1273 v := int32(0) 1274 l := int32(unsafe.Sizeof(v)) 1275 err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l) 1276 return int(v), err 1277} 1278 1279func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { 1280 sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)} 1281 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys))) 1282} 1283 1284func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) { 1285 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4) 1286} 1287func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) { 1288 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq))) 1289} 1290func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) { 1291 return syscall.EWINDOWS 1292} 1293 1294func Getpid() (pid int) { return int(GetCurrentProcessId()) } 1295 1296func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) { 1297 // NOTE(rsc): The Win32finddata struct is wrong for the system call: 1298 // the two paths are each one uint16 short. Use the correct struct, 1299 // a win32finddata1, and then copy the results out. 1300 // There is no loss of expressivity here, because the final 1301 // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that. 1302 // For Go 1.1, we might avoid the allocation of win32finddata1 here 1303 // by adding a final Bug [2]uint16 field to the struct and then 1304 // adjusting the fields in the result directly. 1305 var data1 win32finddata1 1306 handle, err = findFirstFile1(name, &data1) 1307 if err == nil { 1308 copyFindData(data, &data1) 1309 } 1310 return 1311} 1312 1313func FindNextFile(handle Handle, data *Win32finddata) (err error) { 1314 var data1 win32finddata1 1315 err = findNextFile1(handle, &data1) 1316 if err == nil { 1317 copyFindData(data, &data1) 1318 } 1319 return 1320} 1321 1322func getProcessEntry(pid int) (*ProcessEntry32, error) { 1323 snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) 1324 if err != nil { 1325 return nil, err 1326 } 1327 defer CloseHandle(snapshot) 1328 var procEntry ProcessEntry32 1329 procEntry.Size = uint32(unsafe.Sizeof(procEntry)) 1330 if err = Process32First(snapshot, &procEntry); err != nil { 1331 return nil, err 1332 } 1333 for { 1334 if procEntry.ProcessID == uint32(pid) { 1335 return &procEntry, nil 1336 } 1337 err = Process32Next(snapshot, &procEntry) 1338 if err != nil { 1339 return nil, err 1340 } 1341 } 1342} 1343 1344func Getppid() (ppid int) { 1345 pe, err := getProcessEntry(Getpid()) 1346 if err != nil { 1347 return -1 1348 } 1349 return int(pe.ParentProcessID) 1350} 1351 1352// TODO(brainman): fix all needed for os 1353func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS } 1354func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS } 1355func Symlink(path, link string) (err error) { return syscall.EWINDOWS } 1356 1357func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS } 1358func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1359func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1360func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS } 1361 1362func Getuid() (uid int) { return -1 } 1363func Geteuid() (euid int) { return -1 } 1364func Getgid() (gid int) { return -1 } 1365func Getegid() (egid int) { return -1 } 1366func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS } 1367 1368type Signal int 1369 1370func (s Signal) Signal() {} 1371 1372func (s Signal) String() string { 1373 if 0 <= s && int(s) < len(signals) { 1374 str := signals[s] 1375 if str != "" { 1376 return str 1377 } 1378 } 1379 return "signal " + itoa(int(s)) 1380} 1381 1382func LoadCreateSymbolicLink() error { 1383 return procCreateSymbolicLinkW.Find() 1384} 1385 1386// Readlink returns the destination of the named symbolic link. 1387func Readlink(path string, buf []byte) (n int, err error) { 1388 fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING, 1389 FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0) 1390 if err != nil { 1391 return -1, err 1392 } 1393 defer CloseHandle(fd) 1394 1395 rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE) 1396 var bytesReturned uint32 1397 err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) 1398 if err != nil { 1399 return -1, err 1400 } 1401 1402 rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) 1403 var s string 1404 switch rdb.ReparseTag { 1405 case IO_REPARSE_TAG_SYMLINK: 1406 data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1407 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1408 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1409 case IO_REPARSE_TAG_MOUNT_POINT: 1410 data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1411 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1412 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1413 default: 1414 // the path is not a symlink or junction but another type of reparse 1415 // point 1416 return -1, syscall.ENOENT 1417 } 1418 n = copy(buf, []byte(s)) 1419 1420 return n, nil 1421} 1422 1423// GUIDFromString parses a string in the form of 1424// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID. 1425func GUIDFromString(str string) (GUID, error) { 1426 guid := GUID{} 1427 str16, err := syscall.UTF16PtrFromString(str) 1428 if err != nil { 1429 return guid, err 1430 } 1431 err = clsidFromString(str16, &guid) 1432 if err != nil { 1433 return guid, err 1434 } 1435 return guid, nil 1436} 1437 1438// GenerateGUID creates a new random GUID. 1439func GenerateGUID() (GUID, error) { 1440 guid := GUID{} 1441 err := coCreateGuid(&guid) 1442 if err != nil { 1443 return guid, err 1444 } 1445 return guid, nil 1446} 1447 1448// String returns the canonical string form of the GUID, 1449// in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}". 1450func (guid GUID) String() string { 1451 var str [100]uint16 1452 chars := stringFromGUID2(&guid, &str[0], int32(len(str))) 1453 if chars <= 1 { 1454 return "" 1455 } 1456 return string(utf16.Decode(str[:chars-1])) 1457} 1458 1459// KnownFolderPath returns a well-known folder path for the current user, specified by one of 1460// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1461func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1462 return Token(0).KnownFolderPath(folderID, flags) 1463} 1464 1465// KnownFolderPath returns a well-known folder path for the user token, specified by one of 1466// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1467func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1468 var p *uint16 1469 err := shGetKnownFolderPath(folderID, flags, t, &p) 1470 if err != nil { 1471 return "", err 1472 } 1473 defer CoTaskMemFree(unsafe.Pointer(p)) 1474 return UTF16PtrToString(p), nil 1475} 1476 1477// RtlGetVersion returns the version of the underlying operating system, ignoring 1478// manifest semantics but is affected by the application compatibility layer. 1479func RtlGetVersion() *OsVersionInfoEx { 1480 info := &OsVersionInfoEx{} 1481 info.osVersionInfoSize = uint32(unsafe.Sizeof(*info)) 1482 // According to documentation, this function always succeeds. 1483 // The function doesn't even check the validity of the 1484 // osVersionInfoSize member. Disassembling ntdll.dll indicates 1485 // that the documentation is indeed correct about that. 1486 _ = rtlGetVersion(info) 1487 return info 1488} 1489 1490// RtlGetNtVersionNumbers returns the version of the underlying operating system, 1491// ignoring manifest semantics and the application compatibility layer. 1492func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) { 1493 rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber) 1494 buildNumber &= 0xffff 1495 return 1496} 1497 1498// GetProcessPreferredUILanguages retrieves the process preferred UI languages. 1499func GetProcessPreferredUILanguages(flags uint32) ([]string, error) { 1500 return getUILanguages(flags, getProcessPreferredUILanguages) 1501} 1502 1503// GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread. 1504func GetThreadPreferredUILanguages(flags uint32) ([]string, error) { 1505 return getUILanguages(flags, getThreadPreferredUILanguages) 1506} 1507 1508// GetUserPreferredUILanguages retrieves information about the user preferred UI languages. 1509func GetUserPreferredUILanguages(flags uint32) ([]string, error) { 1510 return getUILanguages(flags, getUserPreferredUILanguages) 1511} 1512 1513// GetSystemPreferredUILanguages retrieves the system preferred UI languages. 1514func GetSystemPreferredUILanguages(flags uint32) ([]string, error) { 1515 return getUILanguages(flags, getSystemPreferredUILanguages) 1516} 1517 1518func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) { 1519 size := uint32(128) 1520 for { 1521 var numLanguages uint32 1522 buf := make([]uint16, size) 1523 err := f(flags, &numLanguages, &buf[0], &size) 1524 if err == ERROR_INSUFFICIENT_BUFFER { 1525 continue 1526 } 1527 if err != nil { 1528 return nil, err 1529 } 1530 buf = buf[:size] 1531 if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0" 1532 return []string{}, nil 1533 } 1534 if buf[len(buf)-1] == 0 { 1535 buf = buf[:len(buf)-1] // remove terminating null 1536 } 1537 languages := make([]string, 0, numLanguages) 1538 from := 0 1539 for i, c := range buf { 1540 if c == 0 { 1541 languages = append(languages, string(utf16.Decode(buf[from:i]))) 1542 from = i + 1 1543 } 1544 } 1545 return languages, nil 1546 } 1547} 1548 1549func SetConsoleCursorPosition(console Handle, position Coord) error { 1550 return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position)))) 1551} 1552 1553func (s NTStatus) Errno() syscall.Errno { 1554 return rtlNtStatusToDosErrorNoTeb(s) 1555} 1556 1557func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } 1558 1559func (s NTStatus) Error() string { 1560 b := make([]uint16, 300) 1561 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) 1562 if err != nil { 1563 return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s)) 1564 } 1565 // trim terminating \r and \n 1566 for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { 1567 } 1568 return string(utf16.Decode(b[:n])) 1569} 1570 1571// NewNTUnicodeString returns a new NTUnicodeString structure for use with native 1572// NT APIs that work over the NTUnicodeString type. Note that most Windows APIs 1573// do not use NTUnicodeString, and instead UTF16PtrFromString should be used for 1574// the more common *uint16 string type. 1575func NewNTUnicodeString(s string) (*NTUnicodeString, error) { 1576 var u NTUnicodeString 1577 s16, err := UTF16PtrFromString(s) 1578 if err != nil { 1579 return nil, err 1580 } 1581 RtlInitUnicodeString(&u, s16) 1582 return &u, nil 1583} 1584 1585// Slice returns a uint16 slice that aliases the data in the NTUnicodeString. 1586func (s *NTUnicodeString) Slice() []uint16 { 1587 var slice []uint16 1588 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1589 hdr.Data = unsafe.Pointer(s.Buffer) 1590 hdr.Len = int(s.Length) 1591 hdr.Cap = int(s.MaximumLength) 1592 return slice 1593} 1594 1595func (s *NTUnicodeString) String() string { 1596 return UTF16ToString(s.Slice()) 1597} 1598 1599// NewNTString returns a new NTString structure for use with native 1600// NT APIs that work over the NTString type. Note that most Windows APIs 1601// do not use NTString, and instead UTF16PtrFromString should be used for 1602// the more common *uint16 string type. 1603func NewNTString(s string) (*NTString, error) { 1604 var nts NTString 1605 s8, err := BytePtrFromString(s) 1606 if err != nil { 1607 return nil, err 1608 } 1609 RtlInitString(&nts, s8) 1610 return &nts, nil 1611} 1612 1613// Slice returns a byte slice that aliases the data in the NTString. 1614func (s *NTString) Slice() []byte { 1615 var slice []byte 1616 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1617 hdr.Data = unsafe.Pointer(s.Buffer) 1618 hdr.Len = int(s.Length) 1619 hdr.Cap = int(s.MaximumLength) 1620 return slice 1621} 1622 1623func (s *NTString) String() string { 1624 return ByteSliceToString(s.Slice()) 1625} 1626 1627// FindResource resolves a resource of the given name and resource type. 1628func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) { 1629 var namePtr, resTypePtr uintptr 1630 var name16, resType16 *uint16 1631 var err error 1632 resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) { 1633 switch v := i.(type) { 1634 case string: 1635 *keep, err = UTF16PtrFromString(v) 1636 if err != nil { 1637 return 0, err 1638 } 1639 return uintptr(unsafe.Pointer(*keep)), nil 1640 case ResourceID: 1641 return uintptr(v), nil 1642 } 1643 return 0, errorspkg.New("parameter must be a ResourceID or a string") 1644 } 1645 namePtr, err = resolvePtr(name, &name16) 1646 if err != nil { 1647 return 0, err 1648 } 1649 resTypePtr, err = resolvePtr(resType, &resType16) 1650 if err != nil { 1651 return 0, err 1652 } 1653 resInfo, err := findResource(module, namePtr, resTypePtr) 1654 runtime.KeepAlive(name16) 1655 runtime.KeepAlive(resType16) 1656 return resInfo, err 1657} 1658 1659func LoadResourceData(module, resInfo Handle) (data []byte, err error) { 1660 size, err := SizeofResource(module, resInfo) 1661 if err != nil { 1662 return 1663 } 1664 resData, err := LoadResource(module, resInfo) 1665 if err != nil { 1666 return 1667 } 1668 ptr, err := LockResource(resData) 1669 if err != nil { 1670 return 1671 } 1672 h := (*unsafeheader.Slice)(unsafe.Pointer(&data)) 1673 h.Data = unsafe.Pointer(ptr) 1674 h.Len = int(size) 1675 h.Cap = int(size) 1676 return 1677} 1678