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 VirtualProtectEx(process Handle, address uintptr, size uintptr, newProtect uint32, oldProtect *uint32) (err error) = kernel32.VirtualProtectEx 278//sys VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQuery 279//sys VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQueryEx 280//sys ReadProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesRead *uintptr) (err error) = kernel32.ReadProcessMemory 281//sys WriteProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesWritten *uintptr) (err error) = kernel32.WriteProcessMemory 282//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile 283//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW 284//sys FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW 285//sys FindNextChangeNotification(handle Handle) (err error) 286//sys FindCloseChangeNotification(handle Handle) (err error) 287//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW 288//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore 289//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore 290//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore 291//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore 292//sys CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore 293//sys CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext 294//sys PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore 295//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain 296//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain 297//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext 298//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext 299//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy 300//sys CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW 301//sys CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension 302//sys CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore 303//sys CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore 304//sys CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey 305//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 306//sys CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject 307//sys CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData 308//sys CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData 309//sys WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx 310//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW 311//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey 312//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 313//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW 314//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW 315//sys RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue 316//sys GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId 317//sys ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId 318//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode 319//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode 320//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo 321//sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition 322//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW 323//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW 324//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot 325//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW 326//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW 327//sys Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error) 328//sys Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error) 329//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error) 330// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. 331//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW 332//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW 333//sys GetCurrentThreadId() (id uint32) 334//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW 335//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW 336//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW 337//sys SetEvent(event Handle) (err error) = kernel32.SetEvent 338//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent 339//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent 340//sys CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW 341//sys CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW 342//sys OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW 343//sys ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex 344//sys SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx 345//sys CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW 346//sys AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject 347//sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject 348//sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode 349//sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread 350//sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass 351//sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass 352//sys QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject 353//sys SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error) 354//sys GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error) 355//sys GetProcessId(process Handle) (id uint32, err error) 356//sys QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW 357//sys OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error) 358//sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost 359//sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32) 360//sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error) 361//sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 362//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 363 364// Volume Management Functions 365//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW 366//sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW 367//sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW 368//sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW 369//sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW 370//sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW 371//sys FindVolumeClose(findVolume Handle) (err error) 372//sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) 373//sys GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW 374//sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW 375//sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] 376//sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW 377//sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW 378//sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW 379//sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW 380//sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW 381//sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW 382//sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW 383//sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW 384//sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW 385//sys InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW 386//sys SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters 387//sys GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters 388//sys clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString 389//sys stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2 390//sys coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid 391//sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree 392//sys CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx 393//sys CoUninitialize() = ole32.CoUninitialize 394//sys CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject 395//sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages 396//sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages 397//sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages 398//sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages 399//sys findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW 400//sys SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource 401//sys LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource 402//sys LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource 403 404// Version APIs 405//sys GetFileVersionInfoSize(filename string, zeroHandle *Handle) (bufSize uint32, err error) = version.GetFileVersionInfoSizeW 406//sys GetFileVersionInfo(filename string, handle uint32, bufSize uint32, buffer unsafe.Pointer) (err error) = version.GetFileVersionInfoW 407//sys VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW 408 409// Process Status API (PSAPI) 410//sys EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses 411//sys EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules 412//sys EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx 413//sys GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation 414//sys GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW 415//sys GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW 416 417// NT Native APIs 418//sys rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb 419//sys rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion 420//sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers 421//sys RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb 422//sys RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString 423//sys RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString 424//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 425//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 426//sys NtSetInformationFile(handle Handle, iosb *IO_STATUS_BLOCK, inBuffer *byte, inBufferLen uint32, class uint32) (ntstatus error) = ntdll.NtSetInformationFile 427//sys RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus 428//sys RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus 429//sys RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl 430//sys NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess 431//sys NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess 432//sys NtQuerySystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQuerySystemInformation 433//sys NtSetSystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32) (ntstatus error) = ntdll.NtSetSystemInformation 434//sys RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable 435//sys RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable 436 437// syscall interface implementation for other packages 438 439// GetCurrentProcess returns the handle for the current process. 440// It is a pseudo handle that does not need to be closed. 441// The returned error is always nil. 442// 443// Deprecated: use CurrentProcess for the same Handle without the nil 444// error. 445func GetCurrentProcess() (Handle, error) { 446 return CurrentProcess(), nil 447} 448 449// CurrentProcess returns the handle for the current process. 450// It is a pseudo handle that does not need to be closed. 451func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) } 452 453// GetCurrentThread returns the handle for the current thread. 454// It is a pseudo handle that does not need to be closed. 455// The returned error is always nil. 456// 457// Deprecated: use CurrentThread for the same Handle without the nil 458// error. 459func GetCurrentThread() (Handle, error) { 460 return CurrentThread(), nil 461} 462 463// CurrentThread returns the handle for the current thread. 464// It is a pseudo handle that does not need to be closed. 465func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) } 466 467// GetProcAddressByOrdinal retrieves the address of the exported 468// function from module by ordinal. 469func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { 470 r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) 471 proc = uintptr(r0) 472 if proc == 0 { 473 err = errnoErr(e1) 474 } 475 return 476} 477 478func Exit(code int) { ExitProcess(uint32(code)) } 479 480func makeInheritSa() *SecurityAttributes { 481 var sa SecurityAttributes 482 sa.Length = uint32(unsafe.Sizeof(sa)) 483 sa.InheritHandle = 1 484 return &sa 485} 486 487func Open(path string, mode int, perm uint32) (fd Handle, err error) { 488 if len(path) == 0 { 489 return InvalidHandle, ERROR_FILE_NOT_FOUND 490 } 491 pathp, err := UTF16PtrFromString(path) 492 if err != nil { 493 return InvalidHandle, err 494 } 495 var access uint32 496 switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { 497 case O_RDONLY: 498 access = GENERIC_READ 499 case O_WRONLY: 500 access = GENERIC_WRITE 501 case O_RDWR: 502 access = GENERIC_READ | GENERIC_WRITE 503 } 504 if mode&O_CREAT != 0 { 505 access |= GENERIC_WRITE 506 } 507 if mode&O_APPEND != 0 { 508 access &^= GENERIC_WRITE 509 access |= FILE_APPEND_DATA 510 } 511 sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE) 512 var sa *SecurityAttributes 513 if mode&O_CLOEXEC == 0 { 514 sa = makeInheritSa() 515 } 516 var createmode uint32 517 switch { 518 case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): 519 createmode = CREATE_NEW 520 case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): 521 createmode = CREATE_ALWAYS 522 case mode&O_CREAT == O_CREAT: 523 createmode = OPEN_ALWAYS 524 case mode&O_TRUNC == O_TRUNC: 525 createmode = TRUNCATE_EXISTING 526 default: 527 createmode = OPEN_EXISTING 528 } 529 var attrs uint32 = FILE_ATTRIBUTE_NORMAL 530 if perm&S_IWRITE == 0 { 531 attrs = FILE_ATTRIBUTE_READONLY 532 } 533 h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) 534 return h, e 535} 536 537func Read(fd Handle, p []byte) (n int, err error) { 538 var done uint32 539 e := ReadFile(fd, p, &done, nil) 540 if e != nil { 541 if e == ERROR_BROKEN_PIPE { 542 // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin 543 return 0, nil 544 } 545 return 0, e 546 } 547 if raceenabled { 548 if done > 0 { 549 raceWriteRange(unsafe.Pointer(&p[0]), int(done)) 550 } 551 raceAcquire(unsafe.Pointer(&ioSync)) 552 } 553 return int(done), nil 554} 555 556func Write(fd Handle, p []byte) (n int, err error) { 557 if raceenabled { 558 raceReleaseMerge(unsafe.Pointer(&ioSync)) 559 } 560 var done uint32 561 e := WriteFile(fd, p, &done, nil) 562 if e != nil { 563 return 0, e 564 } 565 if raceenabled && done > 0 { 566 raceReadRange(unsafe.Pointer(&p[0]), int(done)) 567 } 568 return int(done), nil 569} 570 571var ioSync int64 572 573func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) { 574 var w uint32 575 switch whence { 576 case 0: 577 w = FILE_BEGIN 578 case 1: 579 w = FILE_CURRENT 580 case 2: 581 w = FILE_END 582 } 583 hi := int32(offset >> 32) 584 lo := int32(offset) 585 // use GetFileType to check pipe, pipe can't do seek 586 ft, _ := GetFileType(fd) 587 if ft == FILE_TYPE_PIPE { 588 return 0, syscall.EPIPE 589 } 590 rlo, e := SetFilePointer(fd, lo, &hi, w) 591 if e != nil { 592 return 0, e 593 } 594 return int64(hi)<<32 + int64(rlo), nil 595} 596 597func Close(fd Handle) (err error) { 598 return CloseHandle(fd) 599} 600 601var ( 602 Stdin = getStdHandle(STD_INPUT_HANDLE) 603 Stdout = getStdHandle(STD_OUTPUT_HANDLE) 604 Stderr = getStdHandle(STD_ERROR_HANDLE) 605) 606 607func getStdHandle(stdhandle uint32) (fd Handle) { 608 r, _ := GetStdHandle(stdhandle) 609 CloseOnExec(r) 610 return r 611} 612 613const ImplementsGetwd = true 614 615func Getwd() (wd string, err error) { 616 b := make([]uint16, 300) 617 n, e := GetCurrentDirectory(uint32(len(b)), &b[0]) 618 if e != nil { 619 return "", e 620 } 621 return string(utf16.Decode(b[0:n])), nil 622} 623 624func Chdir(path string) (err error) { 625 pathp, err := UTF16PtrFromString(path) 626 if err != nil { 627 return err 628 } 629 return SetCurrentDirectory(pathp) 630} 631 632func Mkdir(path string, mode uint32) (err error) { 633 pathp, err := UTF16PtrFromString(path) 634 if err != nil { 635 return err 636 } 637 return CreateDirectory(pathp, nil) 638} 639 640func Rmdir(path string) (err error) { 641 pathp, err := UTF16PtrFromString(path) 642 if err != nil { 643 return err 644 } 645 return RemoveDirectory(pathp) 646} 647 648func Unlink(path string) (err error) { 649 pathp, err := UTF16PtrFromString(path) 650 if err != nil { 651 return err 652 } 653 return DeleteFile(pathp) 654} 655 656func Rename(oldpath, newpath string) (err error) { 657 from, err := UTF16PtrFromString(oldpath) 658 if err != nil { 659 return err 660 } 661 to, err := UTF16PtrFromString(newpath) 662 if err != nil { 663 return err 664 } 665 return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) 666} 667 668func ComputerName() (name string, err error) { 669 var n uint32 = MAX_COMPUTERNAME_LENGTH + 1 670 b := make([]uint16, n) 671 e := GetComputerName(&b[0], &n) 672 if e != nil { 673 return "", e 674 } 675 return string(utf16.Decode(b[0:n])), nil 676} 677 678func DurationSinceBoot() time.Duration { 679 return time.Duration(getTickCount64()) * time.Millisecond 680} 681 682func Ftruncate(fd Handle, length int64) (err error) { 683 curoffset, e := Seek(fd, 0, 1) 684 if e != nil { 685 return e 686 } 687 defer Seek(fd, curoffset, 0) 688 _, e = Seek(fd, length, 0) 689 if e != nil { 690 return e 691 } 692 e = SetEndOfFile(fd) 693 if e != nil { 694 return e 695 } 696 return nil 697} 698 699func Gettimeofday(tv *Timeval) (err error) { 700 var ft Filetime 701 GetSystemTimeAsFileTime(&ft) 702 *tv = NsecToTimeval(ft.Nanoseconds()) 703 return nil 704} 705 706func Pipe(p []Handle) (err error) { 707 if len(p) != 2 { 708 return syscall.EINVAL 709 } 710 var r, w Handle 711 e := CreatePipe(&r, &w, makeInheritSa(), 0) 712 if e != nil { 713 return e 714 } 715 p[0] = r 716 p[1] = w 717 return nil 718} 719 720func Utimes(path string, tv []Timeval) (err error) { 721 if len(tv) != 2 { 722 return syscall.EINVAL 723 } 724 pathp, e := UTF16PtrFromString(path) 725 if e != nil { 726 return e 727 } 728 h, e := CreateFile(pathp, 729 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 730 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 731 if e != nil { 732 return e 733 } 734 defer Close(h) 735 a := NsecToFiletime(tv[0].Nanoseconds()) 736 w := NsecToFiletime(tv[1].Nanoseconds()) 737 return SetFileTime(h, nil, &a, &w) 738} 739 740func UtimesNano(path string, ts []Timespec) (err error) { 741 if len(ts) != 2 { 742 return syscall.EINVAL 743 } 744 pathp, e := UTF16PtrFromString(path) 745 if e != nil { 746 return e 747 } 748 h, e := CreateFile(pathp, 749 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 750 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 751 if e != nil { 752 return e 753 } 754 defer Close(h) 755 a := NsecToFiletime(TimespecToNsec(ts[0])) 756 w := NsecToFiletime(TimespecToNsec(ts[1])) 757 return SetFileTime(h, nil, &a, &w) 758} 759 760func Fsync(fd Handle) (err error) { 761 return FlushFileBuffers(fd) 762} 763 764func Chmod(path string, mode uint32) (err error) { 765 p, e := UTF16PtrFromString(path) 766 if e != nil { 767 return e 768 } 769 attrs, e := GetFileAttributes(p) 770 if e != nil { 771 return e 772 } 773 if mode&S_IWRITE != 0 { 774 attrs &^= FILE_ATTRIBUTE_READONLY 775 } else { 776 attrs |= FILE_ATTRIBUTE_READONLY 777 } 778 return SetFileAttributes(p, attrs) 779} 780 781func LoadGetSystemTimePreciseAsFileTime() error { 782 return procGetSystemTimePreciseAsFileTime.Find() 783} 784 785func LoadCancelIoEx() error { 786 return procCancelIoEx.Find() 787} 788 789func LoadSetFileCompletionNotificationModes() error { 790 return procSetFileCompletionNotificationModes.Find() 791} 792 793func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { 794 // Every other win32 array API takes arguments as "pointer, count", except for this function. So we 795 // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore 796 // trivially stub this ourselves. 797 798 var handlePtr *Handle 799 if len(handles) > 0 { 800 handlePtr = &handles[0] 801 } 802 return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) 803} 804 805// net api calls 806 807const socket_error = uintptr(^uint32(0)) 808 809//sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup 810//sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup 811//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 812//sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket 813//sys sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto 814//sys recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom 815//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt 816//sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt 817//sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind 818//sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect 819//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname 820//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername 821//sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen 822//sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown 823//sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket 824//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx 825//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs 826//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv 827//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend 828//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 829//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 830//sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW 831//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname 832//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname 833//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs 834//sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname 835//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W 836//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree 837//sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W 838//sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW 839//sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW 840//sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry 841//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo 842//sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes 843//sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW 844//sys WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult 845//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses 846//sys GetACP() (acp uint32) = kernel32.GetACP 847//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar 848 849// For testing: clients can set this flag to force 850// creation of IPv6 sockets to return EAFNOSUPPORT. 851var SocketDisableIPv6 bool 852 853type RawSockaddrInet4 struct { 854 Family uint16 855 Port uint16 856 Addr [4]byte /* in_addr */ 857 Zero [8]uint8 858} 859 860type RawSockaddrInet6 struct { 861 Family uint16 862 Port uint16 863 Flowinfo uint32 864 Addr [16]byte /* in6_addr */ 865 Scope_id uint32 866} 867 868type RawSockaddr struct { 869 Family uint16 870 Data [14]int8 871} 872 873type RawSockaddrAny struct { 874 Addr RawSockaddr 875 Pad [100]int8 876} 877 878type Sockaddr interface { 879 sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs 880} 881 882type SockaddrInet4 struct { 883 Port int 884 Addr [4]byte 885 raw RawSockaddrInet4 886} 887 888func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) { 889 if sa.Port < 0 || sa.Port > 0xFFFF { 890 return nil, 0, syscall.EINVAL 891 } 892 sa.raw.Family = AF_INET 893 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 894 p[0] = byte(sa.Port >> 8) 895 p[1] = byte(sa.Port) 896 sa.raw.Addr = sa.Addr 897 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 898} 899 900type SockaddrInet6 struct { 901 Port int 902 ZoneId uint32 903 Addr [16]byte 904 raw RawSockaddrInet6 905} 906 907func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { 908 if sa.Port < 0 || sa.Port > 0xFFFF { 909 return nil, 0, syscall.EINVAL 910 } 911 sa.raw.Family = AF_INET6 912 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 913 p[0] = byte(sa.Port >> 8) 914 p[1] = byte(sa.Port) 915 sa.raw.Scope_id = sa.ZoneId 916 sa.raw.Addr = sa.Addr 917 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 918} 919 920type RawSockaddrUnix struct { 921 Family uint16 922 Path [UNIX_PATH_MAX]int8 923} 924 925type SockaddrUnix struct { 926 Name string 927 raw RawSockaddrUnix 928} 929 930func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { 931 name := sa.Name 932 n := len(name) 933 if n > len(sa.raw.Path) { 934 return nil, 0, syscall.EINVAL 935 } 936 if n == len(sa.raw.Path) && name[0] != '@' { 937 return nil, 0, syscall.EINVAL 938 } 939 sa.raw.Family = AF_UNIX 940 for i := 0; i < n; i++ { 941 sa.raw.Path[i] = int8(name[i]) 942 } 943 // length is family (uint16), name, NUL. 944 sl := int32(2) 945 if n > 0 { 946 sl += int32(n) + 1 947 } 948 if sa.raw.Path[0] == '@' { 949 sa.raw.Path[0] = 0 950 // Don't count trailing NUL for abstract address. 951 sl-- 952 } 953 954 return unsafe.Pointer(&sa.raw), sl, nil 955} 956 957func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { 958 switch rsa.Addr.Family { 959 case AF_UNIX: 960 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) 961 sa := new(SockaddrUnix) 962 if pp.Path[0] == 0 { 963 // "Abstract" Unix domain socket. 964 // Rewrite leading NUL as @ for textual display. 965 // (This is the standard convention.) 966 // Not friendly to overwrite in place, 967 // but the callers below don't care. 968 pp.Path[0] = '@' 969 } 970 971 // Assume path ends at NUL. 972 // This is not technically the Linux semantics for 973 // abstract Unix domain sockets--they are supposed 974 // to be uninterpreted fixed-size binary blobs--but 975 // everyone uses this convention. 976 n := 0 977 for n < len(pp.Path) && pp.Path[n] != 0 { 978 n++ 979 } 980 bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] 981 sa.Name = string(bytes) 982 return sa, nil 983 984 case AF_INET: 985 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) 986 sa := new(SockaddrInet4) 987 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 988 sa.Port = int(p[0])<<8 + int(p[1]) 989 sa.Addr = pp.Addr 990 return sa, nil 991 992 case AF_INET6: 993 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) 994 sa := new(SockaddrInet6) 995 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 996 sa.Port = int(p[0])<<8 + int(p[1]) 997 sa.ZoneId = pp.Scope_id 998 sa.Addr = pp.Addr 999 return sa, nil 1000 } 1001 return nil, syscall.EAFNOSUPPORT 1002} 1003 1004func Socket(domain, typ, proto int) (fd Handle, err error) { 1005 if domain == AF_INET6 && SocketDisableIPv6 { 1006 return InvalidHandle, syscall.EAFNOSUPPORT 1007 } 1008 return socket(int32(domain), int32(typ), int32(proto)) 1009} 1010 1011func SetsockoptInt(fd Handle, level, opt int, value int) (err error) { 1012 v := int32(value) 1013 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))) 1014} 1015 1016func Bind(fd Handle, sa Sockaddr) (err error) { 1017 ptr, n, err := sa.sockaddr() 1018 if err != nil { 1019 return err 1020 } 1021 return bind(fd, ptr, n) 1022} 1023 1024func Connect(fd Handle, sa Sockaddr) (err error) { 1025 ptr, n, err := sa.sockaddr() 1026 if err != nil { 1027 return err 1028 } 1029 return connect(fd, ptr, n) 1030} 1031 1032func Getsockname(fd Handle) (sa Sockaddr, err error) { 1033 var rsa RawSockaddrAny 1034 l := int32(unsafe.Sizeof(rsa)) 1035 if err = getsockname(fd, &rsa, &l); err != nil { 1036 return 1037 } 1038 return rsa.Sockaddr() 1039} 1040 1041func Getpeername(fd Handle) (sa Sockaddr, err error) { 1042 var rsa RawSockaddrAny 1043 l := int32(unsafe.Sizeof(rsa)) 1044 if err = getpeername(fd, &rsa, &l); err != nil { 1045 return 1046 } 1047 return rsa.Sockaddr() 1048} 1049 1050func Listen(s Handle, n int) (err error) { 1051 return listen(s, int32(n)) 1052} 1053 1054func Shutdown(fd Handle, how int) (err error) { 1055 return shutdown(fd, int32(how)) 1056} 1057 1058func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) { 1059 rsa, l, err := to.sockaddr() 1060 if err != nil { 1061 return err 1062 } 1063 return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine) 1064} 1065 1066func LoadGetAddrInfo() error { 1067 return procGetAddrInfoW.Find() 1068} 1069 1070var connectExFunc struct { 1071 once sync.Once 1072 addr uintptr 1073 err error 1074} 1075 1076func LoadConnectEx() error { 1077 connectExFunc.once.Do(func() { 1078 var s Handle 1079 s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) 1080 if connectExFunc.err != nil { 1081 return 1082 } 1083 defer CloseHandle(s) 1084 var n uint32 1085 connectExFunc.err = WSAIoctl(s, 1086 SIO_GET_EXTENSION_FUNCTION_POINTER, 1087 (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)), 1088 uint32(unsafe.Sizeof(WSAID_CONNECTEX)), 1089 (*byte)(unsafe.Pointer(&connectExFunc.addr)), 1090 uint32(unsafe.Sizeof(connectExFunc.addr)), 1091 &n, nil, 0) 1092 }) 1093 return connectExFunc.err 1094} 1095 1096func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) { 1097 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) 1098 if r1 == 0 { 1099 if e1 != 0 { 1100 err = error(e1) 1101 } else { 1102 err = syscall.EINVAL 1103 } 1104 } 1105 return 1106} 1107 1108func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error { 1109 err := LoadConnectEx() 1110 if err != nil { 1111 return errorspkg.New("failed to find ConnectEx: " + err.Error()) 1112 } 1113 ptr, n, err := sa.sockaddr() 1114 if err != nil { 1115 return err 1116 } 1117 return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) 1118} 1119 1120var sendRecvMsgFunc struct { 1121 once sync.Once 1122 sendAddr uintptr 1123 recvAddr uintptr 1124 err error 1125} 1126 1127func loadWSASendRecvMsg() error { 1128 sendRecvMsgFunc.once.Do(func() { 1129 var s Handle 1130 s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) 1131 if sendRecvMsgFunc.err != nil { 1132 return 1133 } 1134 defer CloseHandle(s) 1135 var n uint32 1136 sendRecvMsgFunc.err = WSAIoctl(s, 1137 SIO_GET_EXTENSION_FUNCTION_POINTER, 1138 (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), 1139 uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), 1140 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), 1141 uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), 1142 &n, nil, 0) 1143 if sendRecvMsgFunc.err != nil { 1144 return 1145 } 1146 sendRecvMsgFunc.err = WSAIoctl(s, 1147 SIO_GET_EXTENSION_FUNCTION_POINTER, 1148 (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), 1149 uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), 1150 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), 1151 uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), 1152 &n, nil, 0) 1153 }) 1154 return sendRecvMsgFunc.err 1155} 1156 1157func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { 1158 err := loadWSASendRecvMsg() 1159 if err != nil { 1160 return err 1161 } 1162 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))) 1163 if r1 == socket_error { 1164 err = errnoErr(e1) 1165 } 1166 return err 1167} 1168 1169func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { 1170 err := loadWSASendRecvMsg() 1171 if err != nil { 1172 return err 1173 } 1174 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) 1175 if r1 == socket_error { 1176 err = errnoErr(e1) 1177 } 1178 return err 1179} 1180 1181// Invented structures to support what package os expects. 1182type Rusage struct { 1183 CreationTime Filetime 1184 ExitTime Filetime 1185 KernelTime Filetime 1186 UserTime Filetime 1187} 1188 1189type WaitStatus struct { 1190 ExitCode uint32 1191} 1192 1193func (w WaitStatus) Exited() bool { return true } 1194 1195func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) } 1196 1197func (w WaitStatus) Signal() Signal { return -1 } 1198 1199func (w WaitStatus) CoreDump() bool { return false } 1200 1201func (w WaitStatus) Stopped() bool { return false } 1202 1203func (w WaitStatus) Continued() bool { return false } 1204 1205func (w WaitStatus) StopSignal() Signal { return -1 } 1206 1207func (w WaitStatus) Signaled() bool { return false } 1208 1209func (w WaitStatus) TrapCause() int { return -1 } 1210 1211// Timespec is an invented structure on Windows, but here for 1212// consistency with the corresponding package for other operating systems. 1213type Timespec struct { 1214 Sec int64 1215 Nsec int64 1216} 1217 1218func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } 1219 1220func NsecToTimespec(nsec int64) (ts Timespec) { 1221 ts.Sec = nsec / 1e9 1222 ts.Nsec = nsec % 1e9 1223 return 1224} 1225 1226// TODO(brainman): fix all needed for net 1227 1228func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS } 1229 1230func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { 1231 var rsa RawSockaddrAny 1232 l := int32(unsafe.Sizeof(rsa)) 1233 n32, err := recvfrom(fd, p, int32(flags), &rsa, &l) 1234 n = int(n32) 1235 if err != nil { 1236 return 1237 } 1238 from, err = rsa.Sockaddr() 1239 return 1240} 1241 1242func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { 1243 ptr, l, err := to.sockaddr() 1244 if err != nil { 1245 return err 1246 } 1247 return sendto(fd, p, int32(flags), ptr, l) 1248} 1249 1250func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS } 1251 1252// The Linger struct is wrong but we only noticed after Go 1. 1253// sysLinger is the real system call structure. 1254 1255// BUG(brainman): The definition of Linger is not appropriate for direct use 1256// with Setsockopt and Getsockopt. 1257// Use SetsockoptLinger instead. 1258 1259type Linger struct { 1260 Onoff int32 1261 Linger int32 1262} 1263 1264type sysLinger struct { 1265 Onoff uint16 1266 Linger uint16 1267} 1268 1269type IPMreq struct { 1270 Multiaddr [4]byte /* in_addr */ 1271 Interface [4]byte /* in_addr */ 1272} 1273 1274type IPv6Mreq struct { 1275 Multiaddr [16]byte /* in6_addr */ 1276 Interface uint32 1277} 1278 1279func GetsockoptInt(fd Handle, level, opt int) (int, error) { 1280 v := int32(0) 1281 l := int32(unsafe.Sizeof(v)) 1282 err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l) 1283 return int(v), err 1284} 1285 1286func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { 1287 sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)} 1288 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys))) 1289} 1290 1291func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) { 1292 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4) 1293} 1294func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) { 1295 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq))) 1296} 1297func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) { 1298 return syscall.EWINDOWS 1299} 1300 1301func Getpid() (pid int) { return int(GetCurrentProcessId()) } 1302 1303func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) { 1304 // NOTE(rsc): The Win32finddata struct is wrong for the system call: 1305 // the two paths are each one uint16 short. Use the correct struct, 1306 // a win32finddata1, and then copy the results out. 1307 // There is no loss of expressivity here, because the final 1308 // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that. 1309 // For Go 1.1, we might avoid the allocation of win32finddata1 here 1310 // by adding a final Bug [2]uint16 field to the struct and then 1311 // adjusting the fields in the result directly. 1312 var data1 win32finddata1 1313 handle, err = findFirstFile1(name, &data1) 1314 if err == nil { 1315 copyFindData(data, &data1) 1316 } 1317 return 1318} 1319 1320func FindNextFile(handle Handle, data *Win32finddata) (err error) { 1321 var data1 win32finddata1 1322 err = findNextFile1(handle, &data1) 1323 if err == nil { 1324 copyFindData(data, &data1) 1325 } 1326 return 1327} 1328 1329func getProcessEntry(pid int) (*ProcessEntry32, error) { 1330 snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) 1331 if err != nil { 1332 return nil, err 1333 } 1334 defer CloseHandle(snapshot) 1335 var procEntry ProcessEntry32 1336 procEntry.Size = uint32(unsafe.Sizeof(procEntry)) 1337 if err = Process32First(snapshot, &procEntry); err != nil { 1338 return nil, err 1339 } 1340 for { 1341 if procEntry.ProcessID == uint32(pid) { 1342 return &procEntry, nil 1343 } 1344 err = Process32Next(snapshot, &procEntry) 1345 if err != nil { 1346 return nil, err 1347 } 1348 } 1349} 1350 1351func Getppid() (ppid int) { 1352 pe, err := getProcessEntry(Getpid()) 1353 if err != nil { 1354 return -1 1355 } 1356 return int(pe.ParentProcessID) 1357} 1358 1359// TODO(brainman): fix all needed for os 1360func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS } 1361func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS } 1362func Symlink(path, link string) (err error) { return syscall.EWINDOWS } 1363 1364func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS } 1365func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1366func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1367func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS } 1368 1369func Getuid() (uid int) { return -1 } 1370func Geteuid() (euid int) { return -1 } 1371func Getgid() (gid int) { return -1 } 1372func Getegid() (egid int) { return -1 } 1373func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS } 1374 1375type Signal int 1376 1377func (s Signal) Signal() {} 1378 1379func (s Signal) String() string { 1380 if 0 <= s && int(s) < len(signals) { 1381 str := signals[s] 1382 if str != "" { 1383 return str 1384 } 1385 } 1386 return "signal " + itoa(int(s)) 1387} 1388 1389func LoadCreateSymbolicLink() error { 1390 return procCreateSymbolicLinkW.Find() 1391} 1392 1393// Readlink returns the destination of the named symbolic link. 1394func Readlink(path string, buf []byte) (n int, err error) { 1395 fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING, 1396 FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0) 1397 if err != nil { 1398 return -1, err 1399 } 1400 defer CloseHandle(fd) 1401 1402 rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE) 1403 var bytesReturned uint32 1404 err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) 1405 if err != nil { 1406 return -1, err 1407 } 1408 1409 rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) 1410 var s string 1411 switch rdb.ReparseTag { 1412 case IO_REPARSE_TAG_SYMLINK: 1413 data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1414 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1415 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1416 case IO_REPARSE_TAG_MOUNT_POINT: 1417 data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1418 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1419 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1420 default: 1421 // the path is not a symlink or junction but another type of reparse 1422 // point 1423 return -1, syscall.ENOENT 1424 } 1425 n = copy(buf, []byte(s)) 1426 1427 return n, nil 1428} 1429 1430// GUIDFromString parses a string in the form of 1431// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID. 1432func GUIDFromString(str string) (GUID, error) { 1433 guid := GUID{} 1434 str16, err := syscall.UTF16PtrFromString(str) 1435 if err != nil { 1436 return guid, err 1437 } 1438 err = clsidFromString(str16, &guid) 1439 if err != nil { 1440 return guid, err 1441 } 1442 return guid, nil 1443} 1444 1445// GenerateGUID creates a new random GUID. 1446func GenerateGUID() (GUID, error) { 1447 guid := GUID{} 1448 err := coCreateGuid(&guid) 1449 if err != nil { 1450 return guid, err 1451 } 1452 return guid, nil 1453} 1454 1455// String returns the canonical string form of the GUID, 1456// in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}". 1457func (guid GUID) String() string { 1458 var str [100]uint16 1459 chars := stringFromGUID2(&guid, &str[0], int32(len(str))) 1460 if chars <= 1 { 1461 return "" 1462 } 1463 return string(utf16.Decode(str[:chars-1])) 1464} 1465 1466// KnownFolderPath returns a well-known folder path for the current user, specified by one of 1467// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1468func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1469 return Token(0).KnownFolderPath(folderID, flags) 1470} 1471 1472// KnownFolderPath returns a well-known folder path for the user token, specified by one of 1473// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1474func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1475 var p *uint16 1476 err := shGetKnownFolderPath(folderID, flags, t, &p) 1477 if err != nil { 1478 return "", err 1479 } 1480 defer CoTaskMemFree(unsafe.Pointer(p)) 1481 return UTF16PtrToString(p), nil 1482} 1483 1484// RtlGetVersion returns the version of the underlying operating system, ignoring 1485// manifest semantics but is affected by the application compatibility layer. 1486func RtlGetVersion() *OsVersionInfoEx { 1487 info := &OsVersionInfoEx{} 1488 info.osVersionInfoSize = uint32(unsafe.Sizeof(*info)) 1489 // According to documentation, this function always succeeds. 1490 // The function doesn't even check the validity of the 1491 // osVersionInfoSize member. Disassembling ntdll.dll indicates 1492 // that the documentation is indeed correct about that. 1493 _ = rtlGetVersion(info) 1494 return info 1495} 1496 1497// RtlGetNtVersionNumbers returns the version of the underlying operating system, 1498// ignoring manifest semantics and the application compatibility layer. 1499func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) { 1500 rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber) 1501 buildNumber &= 0xffff 1502 return 1503} 1504 1505// GetProcessPreferredUILanguages retrieves the process preferred UI languages. 1506func GetProcessPreferredUILanguages(flags uint32) ([]string, error) { 1507 return getUILanguages(flags, getProcessPreferredUILanguages) 1508} 1509 1510// GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread. 1511func GetThreadPreferredUILanguages(flags uint32) ([]string, error) { 1512 return getUILanguages(flags, getThreadPreferredUILanguages) 1513} 1514 1515// GetUserPreferredUILanguages retrieves information about the user preferred UI languages. 1516func GetUserPreferredUILanguages(flags uint32) ([]string, error) { 1517 return getUILanguages(flags, getUserPreferredUILanguages) 1518} 1519 1520// GetSystemPreferredUILanguages retrieves the system preferred UI languages. 1521func GetSystemPreferredUILanguages(flags uint32) ([]string, error) { 1522 return getUILanguages(flags, getSystemPreferredUILanguages) 1523} 1524 1525func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) { 1526 size := uint32(128) 1527 for { 1528 var numLanguages uint32 1529 buf := make([]uint16, size) 1530 err := f(flags, &numLanguages, &buf[0], &size) 1531 if err == ERROR_INSUFFICIENT_BUFFER { 1532 continue 1533 } 1534 if err != nil { 1535 return nil, err 1536 } 1537 buf = buf[:size] 1538 if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0" 1539 return []string{}, nil 1540 } 1541 if buf[len(buf)-1] == 0 { 1542 buf = buf[:len(buf)-1] // remove terminating null 1543 } 1544 languages := make([]string, 0, numLanguages) 1545 from := 0 1546 for i, c := range buf { 1547 if c == 0 { 1548 languages = append(languages, string(utf16.Decode(buf[from:i]))) 1549 from = i + 1 1550 } 1551 } 1552 return languages, nil 1553 } 1554} 1555 1556func SetConsoleCursorPosition(console Handle, position Coord) error { 1557 return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position)))) 1558} 1559 1560func (s NTStatus) Errno() syscall.Errno { 1561 return rtlNtStatusToDosErrorNoTeb(s) 1562} 1563 1564func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } 1565 1566func (s NTStatus) Error() string { 1567 b := make([]uint16, 300) 1568 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) 1569 if err != nil { 1570 return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s)) 1571 } 1572 // trim terminating \r and \n 1573 for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { 1574 } 1575 return string(utf16.Decode(b[:n])) 1576} 1577 1578// NewNTUnicodeString returns a new NTUnicodeString structure for use with native 1579// NT APIs that work over the NTUnicodeString type. Note that most Windows APIs 1580// do not use NTUnicodeString, and instead UTF16PtrFromString should be used for 1581// the more common *uint16 string type. 1582func NewNTUnicodeString(s string) (*NTUnicodeString, error) { 1583 var u NTUnicodeString 1584 s16, err := UTF16PtrFromString(s) 1585 if err != nil { 1586 return nil, err 1587 } 1588 RtlInitUnicodeString(&u, s16) 1589 return &u, nil 1590} 1591 1592// Slice returns a uint16 slice that aliases the data in the NTUnicodeString. 1593func (s *NTUnicodeString) Slice() []uint16 { 1594 var slice []uint16 1595 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1596 hdr.Data = unsafe.Pointer(s.Buffer) 1597 hdr.Len = int(s.Length) 1598 hdr.Cap = int(s.MaximumLength) 1599 return slice 1600} 1601 1602func (s *NTUnicodeString) String() string { 1603 return UTF16ToString(s.Slice()) 1604} 1605 1606// NewNTString returns a new NTString structure for use with native 1607// NT APIs that work over the NTString type. Note that most Windows APIs 1608// do not use NTString, and instead UTF16PtrFromString should be used for 1609// the more common *uint16 string type. 1610func NewNTString(s string) (*NTString, error) { 1611 var nts NTString 1612 s8, err := BytePtrFromString(s) 1613 if err != nil { 1614 return nil, err 1615 } 1616 RtlInitString(&nts, s8) 1617 return &nts, nil 1618} 1619 1620// Slice returns a byte slice that aliases the data in the NTString. 1621func (s *NTString) Slice() []byte { 1622 var slice []byte 1623 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1624 hdr.Data = unsafe.Pointer(s.Buffer) 1625 hdr.Len = int(s.Length) 1626 hdr.Cap = int(s.MaximumLength) 1627 return slice 1628} 1629 1630func (s *NTString) String() string { 1631 return ByteSliceToString(s.Slice()) 1632} 1633 1634// FindResource resolves a resource of the given name and resource type. 1635func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) { 1636 var namePtr, resTypePtr uintptr 1637 var name16, resType16 *uint16 1638 var err error 1639 resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) { 1640 switch v := i.(type) { 1641 case string: 1642 *keep, err = UTF16PtrFromString(v) 1643 if err != nil { 1644 return 0, err 1645 } 1646 return uintptr(unsafe.Pointer(*keep)), nil 1647 case ResourceID: 1648 return uintptr(v), nil 1649 } 1650 return 0, errorspkg.New("parameter must be a ResourceID or a string") 1651 } 1652 namePtr, err = resolvePtr(name, &name16) 1653 if err != nil { 1654 return 0, err 1655 } 1656 resTypePtr, err = resolvePtr(resType, &resType16) 1657 if err != nil { 1658 return 0, err 1659 } 1660 resInfo, err := findResource(module, namePtr, resTypePtr) 1661 runtime.KeepAlive(name16) 1662 runtime.KeepAlive(resType16) 1663 return resInfo, err 1664} 1665 1666func LoadResourceData(module, resInfo Handle) (data []byte, err error) { 1667 size, err := SizeofResource(module, resInfo) 1668 if err != nil { 1669 return 1670 } 1671 resData, err := LoadResource(module, resInfo) 1672 if err != nil { 1673 return 1674 } 1675 ptr, err := LockResource(resData) 1676 if err != nil { 1677 return 1678 } 1679 h := (*unsafeheader.Slice)(unsafe.Pointer(&data)) 1680 h.Data = unsafe.Pointer(ptr) 1681 h.Len = int(size) 1682 h.Cap = int(size) 1683 return 1684} 1685