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 ExpandEnvironmentStrings(src *uint16, dst *uint16, size uint32) (n uint32, err error) = kernel32.ExpandEnvironmentStringsW 252//sys CreateEnvironmentBlock(block **uint16, token Token, inheritExisting bool) (err error) = userenv.CreateEnvironmentBlock 253//sys DestroyEnvironmentBlock(block *uint16) (err error) = userenv.DestroyEnvironmentBlock 254//sys getTickCount64() (ms uint64) = kernel32.GetTickCount64 255//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error) 256//sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW 257//sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW 258//sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW 259//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW 260//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW 261//sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0] 262//sys LocalAlloc(flags uint32, length uint32) (ptr uintptr, err error) 263//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error) 264//sys FlushFileBuffers(handle Handle) (err error) 265//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW 266//sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW 267//sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW 268//sys GetFinalPathNameByHandle(file Handle, filePath *uint16, filePathSize uint32, flags uint32) (n uint32, err error) = kernel32.GetFinalPathNameByHandleW 269//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 270//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error) 271//sys UnmapViewOfFile(addr uintptr) (err error) 272//sys FlushViewOfFile(addr uintptr, length uintptr) (err error) 273//sys VirtualLock(addr uintptr, length uintptr) (err error) 274//sys VirtualUnlock(addr uintptr, length uintptr) (err error) 275//sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc 276//sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree 277//sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect 278//sys VirtualProtectEx(process Handle, address uintptr, size uintptr, newProtect uint32, oldProtect *uint32) (err error) = kernel32.VirtualProtectEx 279//sys VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQuery 280//sys VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) = kernel32.VirtualQueryEx 281//sys ReadProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesRead *uintptr) (err error) = kernel32.ReadProcessMemory 282//sys WriteProcessMemory(process Handle, baseAddress uintptr, buffer *byte, size uintptr, numberOfBytesWritten *uintptr) (err error) = kernel32.WriteProcessMemory 283//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile 284//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW 285//sys FindFirstChangeNotification(path string, watchSubtree bool, notifyFilter uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.FindFirstChangeNotificationW 286//sys FindNextChangeNotification(handle Handle) (err error) 287//sys FindCloseChangeNotification(handle Handle) (err error) 288//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW 289//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) = crypt32.CertOpenStore 290//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore 291//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore 292//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore 293//sys CertDeleteCertificateFromStore(certContext *CertContext) (err error) = crypt32.CertDeleteCertificateFromStore 294//sys CertDuplicateCertificateContext(certContext *CertContext) (dupContext *CertContext) = crypt32.CertDuplicateCertificateContext 295//sys PFXImportCertStore(pfx *CryptDataBlob, password *uint16, flags uint32) (store Handle, err error) = crypt32.PFXImportCertStore 296//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain 297//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain 298//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext 299//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext 300//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy 301//sys CertGetNameString(certContext *CertContext, nameType uint32, flags uint32, typePara unsafe.Pointer, name *uint16, size uint32) (chars uint32) = crypt32.CertGetNameStringW 302//sys CertFindExtension(objId *byte, countExtensions uint32, extensions *CertExtension) (ret *CertExtension) = crypt32.CertFindExtension 303//sys CertFindCertificateInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevCertContext *CertContext) (cert *CertContext, err error) [failretval==nil] = crypt32.CertFindCertificateInStore 304//sys CertFindChainInStore(store Handle, certEncodingType uint32, findFlags uint32, findType uint32, findPara unsafe.Pointer, prevChainContext *CertChainContext) (certchain *CertChainContext, err error) [failretval==nil] = crypt32.CertFindChainInStore 305//sys CryptAcquireCertificatePrivateKey(cert *CertContext, flags uint32, parameters unsafe.Pointer, cryptProvOrNCryptKey *Handle, keySpec *uint32, callerFreeProvOrNCryptKey *bool) (err error) = crypt32.CryptAcquireCertificatePrivateKey 306//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 307//sys CryptDecodeObject(encodingType uint32, structType *byte, encodedBytes *byte, lenEncodedBytes uint32, flags uint32, decoded unsafe.Pointer, decodedLen *uint32) (err error) = crypt32.CryptDecodeObject 308//sys CryptProtectData(dataIn *DataBlob, name *uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptProtectData 309//sys CryptUnprotectData(dataIn *DataBlob, name **uint16, optionalEntropy *DataBlob, reserved uintptr, promptStruct *CryptProtectPromptStruct, flags uint32, dataOut *DataBlob) (err error) = crypt32.CryptUnprotectData 310//sys WinVerifyTrustEx(hwnd HWND, actionId *GUID, data *WinTrustData) (ret error) = wintrust.WinVerifyTrustEx 311//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW 312//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey 313//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 314//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW 315//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW 316//sys RegNotifyChangeKeyValue(key Handle, watchSubtree bool, notifyFilter uint32, event Handle, asynchronous bool) (regerrno error) = advapi32.RegNotifyChangeKeyValue 317//sys GetCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId 318//sys ProcessIdToSessionId(pid uint32, sessionid *uint32) (err error) = kernel32.ProcessIdToSessionId 319//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode 320//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode 321//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo 322//sys setConsoleCursorPosition(console Handle, position uint32) (err error) = kernel32.SetConsoleCursorPosition 323//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW 324//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW 325//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot 326//sys Module32First(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32FirstW 327//sys Module32Next(snapshot Handle, moduleEntry *ModuleEntry32) (err error) = kernel32.Module32NextW 328//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW 329//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW 330//sys Thread32First(snapshot Handle, threadEntry *ThreadEntry32) (err error) 331//sys Thread32Next(snapshot Handle, threadEntry *ThreadEntry32) (err error) 332//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error) 333// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL. 334//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW 335//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW 336//sys GetCurrentThreadId() (id uint32) 337//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventW 338//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateEventExW 339//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW 340//sys SetEvent(event Handle) (err error) = kernel32.SetEvent 341//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent 342//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent 343//sys CreateMutex(mutexAttrs *SecurityAttributes, initialOwner bool, name *uint16) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexW 344//sys CreateMutexEx(mutexAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) [failretval == 0 || e1 == ERROR_ALREADY_EXISTS] = kernel32.CreateMutexExW 345//sys OpenMutex(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenMutexW 346//sys ReleaseMutex(mutex Handle) (err error) = kernel32.ReleaseMutex 347//sys SleepEx(milliseconds uint32, alertable bool) (ret uint32) = kernel32.SleepEx 348//sys CreateJobObject(jobAttr *SecurityAttributes, name *uint16) (handle Handle, err error) = kernel32.CreateJobObjectW 349//sys AssignProcessToJobObject(job Handle, process Handle) (err error) = kernel32.AssignProcessToJobObject 350//sys TerminateJobObject(job Handle, exitCode uint32) (err error) = kernel32.TerminateJobObject 351//sys SetErrorMode(mode uint32) (ret uint32) = kernel32.SetErrorMode 352//sys ResumeThread(thread Handle) (ret uint32, err error) [failretval==0xffffffff] = kernel32.ResumeThread 353//sys SetPriorityClass(process Handle, priorityClass uint32) (err error) = kernel32.SetPriorityClass 354//sys GetPriorityClass(process Handle) (ret uint32, err error) = kernel32.GetPriorityClass 355//sys QueryInformationJobObject(job Handle, JobObjectInformationClass int32, JobObjectInformation uintptr, JobObjectInformationLength uint32, retlen *uint32) (err error) = kernel32.QueryInformationJobObject 356//sys SetInformationJobObject(job Handle, JobObjectInformationClass uint32, JobObjectInformation uintptr, JobObjectInformationLength uint32) (ret int, err error) 357//sys GenerateConsoleCtrlEvent(ctrlEvent uint32, processGroupID uint32) (err error) 358//sys GetProcessId(process Handle) (id uint32, err error) 359//sys QueryFullProcessImageName(proc Handle, flags uint32, exeName *uint16, size *uint32) (err error) = kernel32.QueryFullProcessImageNameW 360//sys OpenThread(desiredAccess uint32, inheritHandle bool, threadId uint32) (handle Handle, err error) 361//sys SetProcessPriorityBoost(process Handle, disable bool) (err error) = kernel32.SetProcessPriorityBoost 362//sys GetProcessWorkingSetSizeEx(hProcess Handle, lpMinimumWorkingSetSize *uintptr, lpMaximumWorkingSetSize *uintptr, flags *uint32) 363//sys SetProcessWorkingSetSizeEx(hProcess Handle, dwMinimumWorkingSetSize uintptr, dwMaximumWorkingSetSize uintptr, flags uint32) (err error) 364//sys GetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 365//sys SetCommTimeouts(handle Handle, timeouts *CommTimeouts) (err error) 366 367// Volume Management Functions 368//sys DefineDosDevice(flags uint32, deviceName *uint16, targetPath *uint16) (err error) = DefineDosDeviceW 369//sys DeleteVolumeMountPoint(volumeMountPoint *uint16) (err error) = DeleteVolumeMountPointW 370//sys FindFirstVolume(volumeName *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeW 371//sys FindFirstVolumeMountPoint(rootPathName *uint16, volumeMountPoint *uint16, bufferLength uint32) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstVolumeMountPointW 372//sys FindNextVolume(findVolume Handle, volumeName *uint16, bufferLength uint32) (err error) = FindNextVolumeW 373//sys FindNextVolumeMountPoint(findVolumeMountPoint Handle, volumeMountPoint *uint16, bufferLength uint32) (err error) = FindNextVolumeMountPointW 374//sys FindVolumeClose(findVolume Handle) (err error) 375//sys FindVolumeMountPointClose(findVolumeMountPoint Handle) (err error) 376//sys GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailableToCaller *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = GetDiskFreeSpaceExW 377//sys GetDriveType(rootPathName *uint16) (driveType uint32) = GetDriveTypeW 378//sys GetLogicalDrives() (drivesBitMask uint32, err error) [failretval==0] 379//sys GetLogicalDriveStrings(bufferLength uint32, buffer *uint16) (n uint32, err error) [failretval==0] = GetLogicalDriveStringsW 380//sys GetVolumeInformation(rootPathName *uint16, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationW 381//sys GetVolumeInformationByHandle(file Handle, volumeNameBuffer *uint16, volumeNameSize uint32, volumeNameSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemNameBuffer *uint16, fileSystemNameSize uint32) (err error) = GetVolumeInformationByHandleW 382//sys GetVolumeNameForVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16, bufferlength uint32) (err error) = GetVolumeNameForVolumeMountPointW 383//sys GetVolumePathName(fileName *uint16, volumePathName *uint16, bufferLength uint32) (err error) = GetVolumePathNameW 384//sys GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW 385//sys QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW 386//sys SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW 387//sys SetVolumeMountPoint(volumeMountPoint *uint16, volumeName *uint16) (err error) = SetVolumeMountPointW 388//sys InitiateSystemShutdownEx(machineName *uint16, message *uint16, timeout uint32, forceAppsClosed bool, rebootAfterShutdown bool, reason uint32) (err error) = advapi32.InitiateSystemShutdownExW 389//sys SetProcessShutdownParameters(level uint32, flags uint32) (err error) = kernel32.SetProcessShutdownParameters 390//sys GetProcessShutdownParameters(level *uint32, flags *uint32) (err error) = kernel32.GetProcessShutdownParameters 391//sys clsidFromString(lpsz *uint16, pclsid *GUID) (ret error) = ole32.CLSIDFromString 392//sys stringFromGUID2(rguid *GUID, lpsz *uint16, cchMax int32) (chars int32) = ole32.StringFromGUID2 393//sys coCreateGuid(pguid *GUID) (ret error) = ole32.CoCreateGuid 394//sys CoTaskMemFree(address unsafe.Pointer) = ole32.CoTaskMemFree 395//sys CoInitializeEx(reserved uintptr, coInit uint32) (ret error) = ole32.CoInitializeEx 396//sys CoUninitialize() = ole32.CoUninitialize 397//sys CoGetObject(name *uint16, bindOpts *BIND_OPTS3, guid *GUID, functionTable **uintptr) (ret error) = ole32.CoGetObject 398//sys getProcessPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetProcessPreferredUILanguages 399//sys getThreadPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetThreadPreferredUILanguages 400//sys getUserPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetUserPreferredUILanguages 401//sys getSystemPreferredUILanguages(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) (err error) = kernel32.GetSystemPreferredUILanguages 402//sys findResource(module Handle, name uintptr, resType uintptr) (resInfo Handle, err error) = kernel32.FindResourceW 403//sys SizeofResource(module Handle, resInfo Handle) (size uint32, err error) = kernel32.SizeofResource 404//sys LoadResource(module Handle, resInfo Handle) (resData Handle, err error) = kernel32.LoadResource 405//sys LockResource(resData Handle) (addr uintptr, err error) = kernel32.LockResource 406 407// Version APIs 408//sys GetFileVersionInfoSize(filename string, zeroHandle *Handle) (bufSize uint32, err error) = version.GetFileVersionInfoSizeW 409//sys GetFileVersionInfo(filename string, handle uint32, bufSize uint32, buffer unsafe.Pointer) (err error) = version.GetFileVersionInfoW 410//sys VerQueryValue(block unsafe.Pointer, subBlock string, pointerToBufferPointer unsafe.Pointer, bufSize *uint32) (err error) = version.VerQueryValueW 411 412// Process Status API (PSAPI) 413//sys EnumProcesses(processIds []uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses 414//sys EnumProcessModules(process Handle, module *Handle, cb uint32, cbNeeded *uint32) (err error) = psapi.EnumProcessModules 415//sys EnumProcessModulesEx(process Handle, module *Handle, cb uint32, cbNeeded *uint32, filterFlag uint32) (err error) = psapi.EnumProcessModulesEx 416//sys GetModuleInformation(process Handle, module Handle, modinfo *ModuleInfo, cb uint32) (err error) = psapi.GetModuleInformation 417//sys GetModuleFileNameEx(process Handle, module Handle, filename *uint16, size uint32) (err error) = psapi.GetModuleFileNameExW 418//sys GetModuleBaseName(process Handle, module Handle, baseName *uint16, size uint32) (err error) = psapi.GetModuleBaseNameW 419 420// NT Native APIs 421//sys rtlNtStatusToDosErrorNoTeb(ntstatus NTStatus) (ret syscall.Errno) = ntdll.RtlNtStatusToDosErrorNoTeb 422//sys rtlGetVersion(info *OsVersionInfoEx) (ntstatus error) = ntdll.RtlGetVersion 423//sys rtlGetNtVersionNumbers(majorVersion *uint32, minorVersion *uint32, buildNumber *uint32) = ntdll.RtlGetNtVersionNumbers 424//sys RtlGetCurrentPeb() (peb *PEB) = ntdll.RtlGetCurrentPeb 425//sys RtlInitUnicodeString(destinationString *NTUnicodeString, sourceString *uint16) = ntdll.RtlInitUnicodeString 426//sys RtlInitString(destinationString *NTString, sourceString *byte) = ntdll.RtlInitString 427//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 428//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 429//sys NtSetInformationFile(handle Handle, iosb *IO_STATUS_BLOCK, inBuffer *byte, inBufferLen uint32, class uint32) (ntstatus error) = ntdll.NtSetInformationFile 430//sys RtlDosPathNameToNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToNtPathName_U_WithStatus 431//sys RtlDosPathNameToRelativeNtPathName(dosName *uint16, ntName *NTUnicodeString, ntFileNamePart *uint16, relativeName *RTL_RELATIVE_NAME) (ntstatus error) = ntdll.RtlDosPathNameToRelativeNtPathName_U_WithStatus 432//sys RtlDefaultNpAcl(acl **ACL) (ntstatus error) = ntdll.RtlDefaultNpAcl 433//sys NtQueryInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQueryInformationProcess 434//sys NtSetInformationProcess(proc Handle, procInfoClass int32, procInfo unsafe.Pointer, procInfoLen uint32) (ntstatus error) = ntdll.NtSetInformationProcess 435//sys NtQuerySystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32, retLen *uint32) (ntstatus error) = ntdll.NtQuerySystemInformation 436//sys NtSetSystemInformation(sysInfoClass int32, sysInfo unsafe.Pointer, sysInfoLen uint32) (ntstatus error) = ntdll.NtSetSystemInformation 437//sys RtlAddFunctionTable(functionTable *RUNTIME_FUNCTION, entryCount uint32, baseAddress uintptr) (ret bool) = ntdll.RtlAddFunctionTable 438//sys RtlDeleteFunctionTable(functionTable *RUNTIME_FUNCTION) (ret bool) = ntdll.RtlDeleteFunctionTable 439 440// syscall interface implementation for other packages 441 442// GetCurrentProcess returns the handle for the current process. 443// It is a pseudo handle that does not need to be closed. 444// The returned error is always nil. 445// 446// Deprecated: use CurrentProcess for the same Handle without the nil 447// error. 448func GetCurrentProcess() (Handle, error) { 449 return CurrentProcess(), nil 450} 451 452// CurrentProcess returns the handle for the current process. 453// It is a pseudo handle that does not need to be closed. 454func CurrentProcess() Handle { return Handle(^uintptr(1 - 1)) } 455 456// GetCurrentThread returns the handle for the current thread. 457// It is a pseudo handle that does not need to be closed. 458// The returned error is always nil. 459// 460// Deprecated: use CurrentThread for the same Handle without the nil 461// error. 462func GetCurrentThread() (Handle, error) { 463 return CurrentThread(), nil 464} 465 466// CurrentThread returns the handle for the current thread. 467// It is a pseudo handle that does not need to be closed. 468func CurrentThread() Handle { return Handle(^uintptr(2 - 1)) } 469 470// GetProcAddressByOrdinal retrieves the address of the exported 471// function from module by ordinal. 472func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) { 473 r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0) 474 proc = uintptr(r0) 475 if proc == 0 { 476 err = errnoErr(e1) 477 } 478 return 479} 480 481func Exit(code int) { ExitProcess(uint32(code)) } 482 483func makeInheritSa() *SecurityAttributes { 484 var sa SecurityAttributes 485 sa.Length = uint32(unsafe.Sizeof(sa)) 486 sa.InheritHandle = 1 487 return &sa 488} 489 490func Open(path string, mode int, perm uint32) (fd Handle, err error) { 491 if len(path) == 0 { 492 return InvalidHandle, ERROR_FILE_NOT_FOUND 493 } 494 pathp, err := UTF16PtrFromString(path) 495 if err != nil { 496 return InvalidHandle, err 497 } 498 var access uint32 499 switch mode & (O_RDONLY | O_WRONLY | O_RDWR) { 500 case O_RDONLY: 501 access = GENERIC_READ 502 case O_WRONLY: 503 access = GENERIC_WRITE 504 case O_RDWR: 505 access = GENERIC_READ | GENERIC_WRITE 506 } 507 if mode&O_CREAT != 0 { 508 access |= GENERIC_WRITE 509 } 510 if mode&O_APPEND != 0 { 511 access &^= GENERIC_WRITE 512 access |= FILE_APPEND_DATA 513 } 514 sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE) 515 var sa *SecurityAttributes 516 if mode&O_CLOEXEC == 0 { 517 sa = makeInheritSa() 518 } 519 var createmode uint32 520 switch { 521 case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL): 522 createmode = CREATE_NEW 523 case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC): 524 createmode = CREATE_ALWAYS 525 case mode&O_CREAT == O_CREAT: 526 createmode = OPEN_ALWAYS 527 case mode&O_TRUNC == O_TRUNC: 528 createmode = TRUNCATE_EXISTING 529 default: 530 createmode = OPEN_EXISTING 531 } 532 var attrs uint32 = FILE_ATTRIBUTE_NORMAL 533 if perm&S_IWRITE == 0 { 534 attrs = FILE_ATTRIBUTE_READONLY 535 } 536 h, e := CreateFile(pathp, access, sharemode, sa, createmode, attrs, 0) 537 return h, e 538} 539 540func Read(fd Handle, p []byte) (n int, err error) { 541 var done uint32 542 e := ReadFile(fd, p, &done, nil) 543 if e != nil { 544 if e == ERROR_BROKEN_PIPE { 545 // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin 546 return 0, nil 547 } 548 return 0, e 549 } 550 if raceenabled { 551 if done > 0 { 552 raceWriteRange(unsafe.Pointer(&p[0]), int(done)) 553 } 554 raceAcquire(unsafe.Pointer(&ioSync)) 555 } 556 return int(done), nil 557} 558 559func Write(fd Handle, p []byte) (n int, err error) { 560 if raceenabled { 561 raceReleaseMerge(unsafe.Pointer(&ioSync)) 562 } 563 var done uint32 564 e := WriteFile(fd, p, &done, nil) 565 if e != nil { 566 return 0, e 567 } 568 if raceenabled && done > 0 { 569 raceReadRange(unsafe.Pointer(&p[0]), int(done)) 570 } 571 return int(done), nil 572} 573 574var ioSync int64 575 576func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) { 577 var w uint32 578 switch whence { 579 case 0: 580 w = FILE_BEGIN 581 case 1: 582 w = FILE_CURRENT 583 case 2: 584 w = FILE_END 585 } 586 hi := int32(offset >> 32) 587 lo := int32(offset) 588 // use GetFileType to check pipe, pipe can't do seek 589 ft, _ := GetFileType(fd) 590 if ft == FILE_TYPE_PIPE { 591 return 0, syscall.EPIPE 592 } 593 rlo, e := SetFilePointer(fd, lo, &hi, w) 594 if e != nil { 595 return 0, e 596 } 597 return int64(hi)<<32 + int64(rlo), nil 598} 599 600func Close(fd Handle) (err error) { 601 return CloseHandle(fd) 602} 603 604var ( 605 Stdin = getStdHandle(STD_INPUT_HANDLE) 606 Stdout = getStdHandle(STD_OUTPUT_HANDLE) 607 Stderr = getStdHandle(STD_ERROR_HANDLE) 608) 609 610func getStdHandle(stdhandle uint32) (fd Handle) { 611 r, _ := GetStdHandle(stdhandle) 612 CloseOnExec(r) 613 return r 614} 615 616const ImplementsGetwd = true 617 618func Getwd() (wd string, err error) { 619 b := make([]uint16, 300) 620 n, e := GetCurrentDirectory(uint32(len(b)), &b[0]) 621 if e != nil { 622 return "", e 623 } 624 return string(utf16.Decode(b[0:n])), nil 625} 626 627func Chdir(path string) (err error) { 628 pathp, err := UTF16PtrFromString(path) 629 if err != nil { 630 return err 631 } 632 return SetCurrentDirectory(pathp) 633} 634 635func Mkdir(path string, mode uint32) (err error) { 636 pathp, err := UTF16PtrFromString(path) 637 if err != nil { 638 return err 639 } 640 return CreateDirectory(pathp, nil) 641} 642 643func Rmdir(path string) (err error) { 644 pathp, err := UTF16PtrFromString(path) 645 if err != nil { 646 return err 647 } 648 return RemoveDirectory(pathp) 649} 650 651func Unlink(path string) (err error) { 652 pathp, err := UTF16PtrFromString(path) 653 if err != nil { 654 return err 655 } 656 return DeleteFile(pathp) 657} 658 659func Rename(oldpath, newpath string) (err error) { 660 from, err := UTF16PtrFromString(oldpath) 661 if err != nil { 662 return err 663 } 664 to, err := UTF16PtrFromString(newpath) 665 if err != nil { 666 return err 667 } 668 return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING) 669} 670 671func ComputerName() (name string, err error) { 672 var n uint32 = MAX_COMPUTERNAME_LENGTH + 1 673 b := make([]uint16, n) 674 e := GetComputerName(&b[0], &n) 675 if e != nil { 676 return "", e 677 } 678 return string(utf16.Decode(b[0:n])), nil 679} 680 681func DurationSinceBoot() time.Duration { 682 return time.Duration(getTickCount64()) * time.Millisecond 683} 684 685func Ftruncate(fd Handle, length int64) (err error) { 686 curoffset, e := Seek(fd, 0, 1) 687 if e != nil { 688 return e 689 } 690 defer Seek(fd, curoffset, 0) 691 _, e = Seek(fd, length, 0) 692 if e != nil { 693 return e 694 } 695 e = SetEndOfFile(fd) 696 if e != nil { 697 return e 698 } 699 return nil 700} 701 702func Gettimeofday(tv *Timeval) (err error) { 703 var ft Filetime 704 GetSystemTimeAsFileTime(&ft) 705 *tv = NsecToTimeval(ft.Nanoseconds()) 706 return nil 707} 708 709func Pipe(p []Handle) (err error) { 710 if len(p) != 2 { 711 return syscall.EINVAL 712 } 713 var r, w Handle 714 e := CreatePipe(&r, &w, makeInheritSa(), 0) 715 if e != nil { 716 return e 717 } 718 p[0] = r 719 p[1] = w 720 return nil 721} 722 723func Utimes(path string, tv []Timeval) (err error) { 724 if len(tv) != 2 { 725 return syscall.EINVAL 726 } 727 pathp, e := UTF16PtrFromString(path) 728 if e != nil { 729 return e 730 } 731 h, e := CreateFile(pathp, 732 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 733 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 734 if e != nil { 735 return e 736 } 737 defer Close(h) 738 a := NsecToFiletime(tv[0].Nanoseconds()) 739 w := NsecToFiletime(tv[1].Nanoseconds()) 740 return SetFileTime(h, nil, &a, &w) 741} 742 743func UtimesNano(path string, ts []Timespec) (err error) { 744 if len(ts) != 2 { 745 return syscall.EINVAL 746 } 747 pathp, e := UTF16PtrFromString(path) 748 if e != nil { 749 return e 750 } 751 h, e := CreateFile(pathp, 752 FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, 753 OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0) 754 if e != nil { 755 return e 756 } 757 defer Close(h) 758 a := NsecToFiletime(TimespecToNsec(ts[0])) 759 w := NsecToFiletime(TimespecToNsec(ts[1])) 760 return SetFileTime(h, nil, &a, &w) 761} 762 763func Fsync(fd Handle) (err error) { 764 return FlushFileBuffers(fd) 765} 766 767func Chmod(path string, mode uint32) (err error) { 768 p, e := UTF16PtrFromString(path) 769 if e != nil { 770 return e 771 } 772 attrs, e := GetFileAttributes(p) 773 if e != nil { 774 return e 775 } 776 if mode&S_IWRITE != 0 { 777 attrs &^= FILE_ATTRIBUTE_READONLY 778 } else { 779 attrs |= FILE_ATTRIBUTE_READONLY 780 } 781 return SetFileAttributes(p, attrs) 782} 783 784func LoadGetSystemTimePreciseAsFileTime() error { 785 return procGetSystemTimePreciseAsFileTime.Find() 786} 787 788func LoadCancelIoEx() error { 789 return procCancelIoEx.Find() 790} 791 792func LoadSetFileCompletionNotificationModes() error { 793 return procSetFileCompletionNotificationModes.Find() 794} 795 796func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) { 797 // Every other win32 array API takes arguments as "pointer, count", except for this function. So we 798 // can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore 799 // trivially stub this ourselves. 800 801 var handlePtr *Handle 802 if len(handles) > 0 { 803 handlePtr = &handles[0] 804 } 805 return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds) 806} 807 808// net api calls 809 810const socket_error = uintptr(^uint32(0)) 811 812//sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup 813//sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup 814//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 815//sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket 816//sys sendto(s Handle, buf []byte, flags int32, to unsafe.Pointer, tolen int32) (err error) [failretval==socket_error] = ws2_32.sendto 817//sys recvfrom(s Handle, buf []byte, flags int32, from *RawSockaddrAny, fromlen *int32) (n int32, err error) [failretval==-1] = ws2_32.recvfrom 818//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt 819//sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt 820//sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind 821//sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect 822//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname 823//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername 824//sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen 825//sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown 826//sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket 827//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx 828//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs 829//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv 830//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend 831//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 832//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 833//sys WSASocket(af int32, typ int32, protocol int32, protoInfo *WSAProtocolInfo, group uint32, flags uint32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.WSASocketW 834//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname 835//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname 836//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs 837//sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname 838//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W 839//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree 840//sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W 841//sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW 842//sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW 843//sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry 844//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo 845//sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes 846//sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW 847//sys WSAGetOverlappedResult(h Handle, o *Overlapped, bytes *uint32, wait bool, flags *uint32) (err error) = ws2_32.WSAGetOverlappedResult 848//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses 849//sys GetACP() (acp uint32) = kernel32.GetACP 850//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar 851 852// For testing: clients can set this flag to force 853// creation of IPv6 sockets to return EAFNOSUPPORT. 854var SocketDisableIPv6 bool 855 856type RawSockaddrInet4 struct { 857 Family uint16 858 Port uint16 859 Addr [4]byte /* in_addr */ 860 Zero [8]uint8 861} 862 863type RawSockaddrInet6 struct { 864 Family uint16 865 Port uint16 866 Flowinfo uint32 867 Addr [16]byte /* in6_addr */ 868 Scope_id uint32 869} 870 871type RawSockaddr struct { 872 Family uint16 873 Data [14]int8 874} 875 876type RawSockaddrAny struct { 877 Addr RawSockaddr 878 Pad [100]int8 879} 880 881type Sockaddr interface { 882 sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs 883} 884 885type SockaddrInet4 struct { 886 Port int 887 Addr [4]byte 888 raw RawSockaddrInet4 889} 890 891func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) { 892 if sa.Port < 0 || sa.Port > 0xFFFF { 893 return nil, 0, syscall.EINVAL 894 } 895 sa.raw.Family = AF_INET 896 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 897 p[0] = byte(sa.Port >> 8) 898 p[1] = byte(sa.Port) 899 sa.raw.Addr = sa.Addr 900 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 901} 902 903type SockaddrInet6 struct { 904 Port int 905 ZoneId uint32 906 Addr [16]byte 907 raw RawSockaddrInet6 908} 909 910func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) { 911 if sa.Port < 0 || sa.Port > 0xFFFF { 912 return nil, 0, syscall.EINVAL 913 } 914 sa.raw.Family = AF_INET6 915 p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port)) 916 p[0] = byte(sa.Port >> 8) 917 p[1] = byte(sa.Port) 918 sa.raw.Scope_id = sa.ZoneId 919 sa.raw.Addr = sa.Addr 920 return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil 921} 922 923type RawSockaddrUnix struct { 924 Family uint16 925 Path [UNIX_PATH_MAX]int8 926} 927 928type SockaddrUnix struct { 929 Name string 930 raw RawSockaddrUnix 931} 932 933func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) { 934 name := sa.Name 935 n := len(name) 936 if n > len(sa.raw.Path) { 937 return nil, 0, syscall.EINVAL 938 } 939 if n == len(sa.raw.Path) && name[0] != '@' { 940 return nil, 0, syscall.EINVAL 941 } 942 sa.raw.Family = AF_UNIX 943 for i := 0; i < n; i++ { 944 sa.raw.Path[i] = int8(name[i]) 945 } 946 // length is family (uint16), name, NUL. 947 sl := int32(2) 948 if n > 0 { 949 sl += int32(n) + 1 950 } 951 if sa.raw.Path[0] == '@' { 952 sa.raw.Path[0] = 0 953 // Don't count trailing NUL for abstract address. 954 sl-- 955 } 956 957 return unsafe.Pointer(&sa.raw), sl, nil 958} 959 960func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { 961 switch rsa.Addr.Family { 962 case AF_UNIX: 963 pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa)) 964 sa := new(SockaddrUnix) 965 if pp.Path[0] == 0 { 966 // "Abstract" Unix domain socket. 967 // Rewrite leading NUL as @ for textual display. 968 // (This is the standard convention.) 969 // Not friendly to overwrite in place, 970 // but the callers below don't care. 971 pp.Path[0] = '@' 972 } 973 974 // Assume path ends at NUL. 975 // This is not technically the Linux semantics for 976 // abstract Unix domain sockets--they are supposed 977 // to be uninterpreted fixed-size binary blobs--but 978 // everyone uses this convention. 979 n := 0 980 for n < len(pp.Path) && pp.Path[n] != 0 { 981 n++ 982 } 983 bytes := (*[len(pp.Path)]byte)(unsafe.Pointer(&pp.Path[0]))[0:n] 984 sa.Name = string(bytes) 985 return sa, nil 986 987 case AF_INET: 988 pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa)) 989 sa := new(SockaddrInet4) 990 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 991 sa.Port = int(p[0])<<8 + int(p[1]) 992 sa.Addr = pp.Addr 993 return sa, nil 994 995 case AF_INET6: 996 pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa)) 997 sa := new(SockaddrInet6) 998 p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 999 sa.Port = int(p[0])<<8 + int(p[1]) 1000 sa.ZoneId = pp.Scope_id 1001 sa.Addr = pp.Addr 1002 return sa, nil 1003 } 1004 return nil, syscall.EAFNOSUPPORT 1005} 1006 1007func Socket(domain, typ, proto int) (fd Handle, err error) { 1008 if domain == AF_INET6 && SocketDisableIPv6 { 1009 return InvalidHandle, syscall.EAFNOSUPPORT 1010 } 1011 return socket(int32(domain), int32(typ), int32(proto)) 1012} 1013 1014func SetsockoptInt(fd Handle, level, opt int, value int) (err error) { 1015 v := int32(value) 1016 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))) 1017} 1018 1019func Bind(fd Handle, sa Sockaddr) (err error) { 1020 ptr, n, err := sa.sockaddr() 1021 if err != nil { 1022 return err 1023 } 1024 return bind(fd, ptr, n) 1025} 1026 1027func Connect(fd Handle, sa Sockaddr) (err error) { 1028 ptr, n, err := sa.sockaddr() 1029 if err != nil { 1030 return err 1031 } 1032 return connect(fd, ptr, n) 1033} 1034 1035func Getsockname(fd Handle) (sa Sockaddr, err error) { 1036 var rsa RawSockaddrAny 1037 l := int32(unsafe.Sizeof(rsa)) 1038 if err = getsockname(fd, &rsa, &l); err != nil { 1039 return 1040 } 1041 return rsa.Sockaddr() 1042} 1043 1044func Getpeername(fd Handle) (sa Sockaddr, err error) { 1045 var rsa RawSockaddrAny 1046 l := int32(unsafe.Sizeof(rsa)) 1047 if err = getpeername(fd, &rsa, &l); err != nil { 1048 return 1049 } 1050 return rsa.Sockaddr() 1051} 1052 1053func Listen(s Handle, n int) (err error) { 1054 return listen(s, int32(n)) 1055} 1056 1057func Shutdown(fd Handle, how int) (err error) { 1058 return shutdown(fd, int32(how)) 1059} 1060 1061func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) { 1062 rsa, l, err := to.sockaddr() 1063 if err != nil { 1064 return err 1065 } 1066 return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine) 1067} 1068 1069func LoadGetAddrInfo() error { 1070 return procGetAddrInfoW.Find() 1071} 1072 1073var connectExFunc struct { 1074 once sync.Once 1075 addr uintptr 1076 err error 1077} 1078 1079func LoadConnectEx() error { 1080 connectExFunc.once.Do(func() { 1081 var s Handle 1082 s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) 1083 if connectExFunc.err != nil { 1084 return 1085 } 1086 defer CloseHandle(s) 1087 var n uint32 1088 connectExFunc.err = WSAIoctl(s, 1089 SIO_GET_EXTENSION_FUNCTION_POINTER, 1090 (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)), 1091 uint32(unsafe.Sizeof(WSAID_CONNECTEX)), 1092 (*byte)(unsafe.Pointer(&connectExFunc.addr)), 1093 uint32(unsafe.Sizeof(connectExFunc.addr)), 1094 &n, nil, 0) 1095 }) 1096 return connectExFunc.err 1097} 1098 1099func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) { 1100 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) 1101 if r1 == 0 { 1102 if e1 != 0 { 1103 err = error(e1) 1104 } else { 1105 err = syscall.EINVAL 1106 } 1107 } 1108 return 1109} 1110 1111func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error { 1112 err := LoadConnectEx() 1113 if err != nil { 1114 return errorspkg.New("failed to find ConnectEx: " + err.Error()) 1115 } 1116 ptr, n, err := sa.sockaddr() 1117 if err != nil { 1118 return err 1119 } 1120 return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped) 1121} 1122 1123var sendRecvMsgFunc struct { 1124 once sync.Once 1125 sendAddr uintptr 1126 recvAddr uintptr 1127 err error 1128} 1129 1130func loadWSASendRecvMsg() error { 1131 sendRecvMsgFunc.once.Do(func() { 1132 var s Handle 1133 s, sendRecvMsgFunc.err = Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP) 1134 if sendRecvMsgFunc.err != nil { 1135 return 1136 } 1137 defer CloseHandle(s) 1138 var n uint32 1139 sendRecvMsgFunc.err = WSAIoctl(s, 1140 SIO_GET_EXTENSION_FUNCTION_POINTER, 1141 (*byte)(unsafe.Pointer(&WSAID_WSARECVMSG)), 1142 uint32(unsafe.Sizeof(WSAID_WSARECVMSG)), 1143 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.recvAddr)), 1144 uint32(unsafe.Sizeof(sendRecvMsgFunc.recvAddr)), 1145 &n, nil, 0) 1146 if sendRecvMsgFunc.err != nil { 1147 return 1148 } 1149 sendRecvMsgFunc.err = WSAIoctl(s, 1150 SIO_GET_EXTENSION_FUNCTION_POINTER, 1151 (*byte)(unsafe.Pointer(&WSAID_WSASENDMSG)), 1152 uint32(unsafe.Sizeof(WSAID_WSASENDMSG)), 1153 (*byte)(unsafe.Pointer(&sendRecvMsgFunc.sendAddr)), 1154 uint32(unsafe.Sizeof(sendRecvMsgFunc.sendAddr)), 1155 &n, nil, 0) 1156 }) 1157 return sendRecvMsgFunc.err 1158} 1159 1160func WSASendMsg(fd Handle, msg *WSAMsg, flags uint32, bytesSent *uint32, overlapped *Overlapped, croutine *byte) error { 1161 err := loadWSASendRecvMsg() 1162 if err != nil { 1163 return err 1164 } 1165 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))) 1166 if r1 == socket_error { 1167 err = errnoErr(e1) 1168 } 1169 return err 1170} 1171 1172func WSARecvMsg(fd Handle, msg *WSAMsg, bytesReceived *uint32, overlapped *Overlapped, croutine *byte) error { 1173 err := loadWSASendRecvMsg() 1174 if err != nil { 1175 return err 1176 } 1177 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) 1178 if r1 == socket_error { 1179 err = errnoErr(e1) 1180 } 1181 return err 1182} 1183 1184// Invented structures to support what package os expects. 1185type Rusage struct { 1186 CreationTime Filetime 1187 ExitTime Filetime 1188 KernelTime Filetime 1189 UserTime Filetime 1190} 1191 1192type WaitStatus struct { 1193 ExitCode uint32 1194} 1195 1196func (w WaitStatus) Exited() bool { return true } 1197 1198func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) } 1199 1200func (w WaitStatus) Signal() Signal { return -1 } 1201 1202func (w WaitStatus) CoreDump() bool { return false } 1203 1204func (w WaitStatus) Stopped() bool { return false } 1205 1206func (w WaitStatus) Continued() bool { return false } 1207 1208func (w WaitStatus) StopSignal() Signal { return -1 } 1209 1210func (w WaitStatus) Signaled() bool { return false } 1211 1212func (w WaitStatus) TrapCause() int { return -1 } 1213 1214// Timespec is an invented structure on Windows, but here for 1215// consistency with the corresponding package for other operating systems. 1216type Timespec struct { 1217 Sec int64 1218 Nsec int64 1219} 1220 1221func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) } 1222 1223func NsecToTimespec(nsec int64) (ts Timespec) { 1224 ts.Sec = nsec / 1e9 1225 ts.Nsec = nsec % 1e9 1226 return 1227} 1228 1229// TODO(brainman): fix all needed for net 1230 1231func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS } 1232 1233func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { 1234 var rsa RawSockaddrAny 1235 l := int32(unsafe.Sizeof(rsa)) 1236 n32, err := recvfrom(fd, p, int32(flags), &rsa, &l) 1237 n = int(n32) 1238 if err != nil { 1239 return 1240 } 1241 from, err = rsa.Sockaddr() 1242 return 1243} 1244 1245func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { 1246 ptr, l, err := to.sockaddr() 1247 if err != nil { 1248 return err 1249 } 1250 return sendto(fd, p, int32(flags), ptr, l) 1251} 1252 1253func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS } 1254 1255// The Linger struct is wrong but we only noticed after Go 1. 1256// sysLinger is the real system call structure. 1257 1258// BUG(brainman): The definition of Linger is not appropriate for direct use 1259// with Setsockopt and Getsockopt. 1260// Use SetsockoptLinger instead. 1261 1262type Linger struct { 1263 Onoff int32 1264 Linger int32 1265} 1266 1267type sysLinger struct { 1268 Onoff uint16 1269 Linger uint16 1270} 1271 1272type IPMreq struct { 1273 Multiaddr [4]byte /* in_addr */ 1274 Interface [4]byte /* in_addr */ 1275} 1276 1277type IPv6Mreq struct { 1278 Multiaddr [16]byte /* in6_addr */ 1279 Interface uint32 1280} 1281 1282func GetsockoptInt(fd Handle, level, opt int) (int, error) { 1283 v := int32(0) 1284 l := int32(unsafe.Sizeof(v)) 1285 err := Getsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), &l) 1286 return int(v), err 1287} 1288 1289func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { 1290 sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)} 1291 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys))) 1292} 1293 1294func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) { 1295 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4) 1296} 1297func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) { 1298 return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq))) 1299} 1300func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) { 1301 return syscall.EWINDOWS 1302} 1303 1304func Getpid() (pid int) { return int(GetCurrentProcessId()) } 1305 1306func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) { 1307 // NOTE(rsc): The Win32finddata struct is wrong for the system call: 1308 // the two paths are each one uint16 short. Use the correct struct, 1309 // a win32finddata1, and then copy the results out. 1310 // There is no loss of expressivity here, because the final 1311 // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that. 1312 // For Go 1.1, we might avoid the allocation of win32finddata1 here 1313 // by adding a final Bug [2]uint16 field to the struct and then 1314 // adjusting the fields in the result directly. 1315 var data1 win32finddata1 1316 handle, err = findFirstFile1(name, &data1) 1317 if err == nil { 1318 copyFindData(data, &data1) 1319 } 1320 return 1321} 1322 1323func FindNextFile(handle Handle, data *Win32finddata) (err error) { 1324 var data1 win32finddata1 1325 err = findNextFile1(handle, &data1) 1326 if err == nil { 1327 copyFindData(data, &data1) 1328 } 1329 return 1330} 1331 1332func getProcessEntry(pid int) (*ProcessEntry32, error) { 1333 snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0) 1334 if err != nil { 1335 return nil, err 1336 } 1337 defer CloseHandle(snapshot) 1338 var procEntry ProcessEntry32 1339 procEntry.Size = uint32(unsafe.Sizeof(procEntry)) 1340 if err = Process32First(snapshot, &procEntry); err != nil { 1341 return nil, err 1342 } 1343 for { 1344 if procEntry.ProcessID == uint32(pid) { 1345 return &procEntry, nil 1346 } 1347 err = Process32Next(snapshot, &procEntry) 1348 if err != nil { 1349 return nil, err 1350 } 1351 } 1352} 1353 1354func Getppid() (ppid int) { 1355 pe, err := getProcessEntry(Getpid()) 1356 if err != nil { 1357 return -1 1358 } 1359 return int(pe.ParentProcessID) 1360} 1361 1362// TODO(brainman): fix all needed for os 1363func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS } 1364func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS } 1365func Symlink(path, link string) (err error) { return syscall.EWINDOWS } 1366 1367func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS } 1368func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1369func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS } 1370func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS } 1371 1372func Getuid() (uid int) { return -1 } 1373func Geteuid() (euid int) { return -1 } 1374func Getgid() (gid int) { return -1 } 1375func Getegid() (egid int) { return -1 } 1376func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS } 1377 1378type Signal int 1379 1380func (s Signal) Signal() {} 1381 1382func (s Signal) String() string { 1383 if 0 <= s && int(s) < len(signals) { 1384 str := signals[s] 1385 if str != "" { 1386 return str 1387 } 1388 } 1389 return "signal " + itoa(int(s)) 1390} 1391 1392func LoadCreateSymbolicLink() error { 1393 return procCreateSymbolicLinkW.Find() 1394} 1395 1396// Readlink returns the destination of the named symbolic link. 1397func Readlink(path string, buf []byte) (n int, err error) { 1398 fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING, 1399 FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0) 1400 if err != nil { 1401 return -1, err 1402 } 1403 defer CloseHandle(fd) 1404 1405 rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE) 1406 var bytesReturned uint32 1407 err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) 1408 if err != nil { 1409 return -1, err 1410 } 1411 1412 rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) 1413 var s string 1414 switch rdb.ReparseTag { 1415 case IO_REPARSE_TAG_SYMLINK: 1416 data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1417 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1418 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1419 case IO_REPARSE_TAG_MOUNT_POINT: 1420 data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) 1421 p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) 1422 s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2]) 1423 default: 1424 // the path is not a symlink or junction but another type of reparse 1425 // point 1426 return -1, syscall.ENOENT 1427 } 1428 n = copy(buf, []byte(s)) 1429 1430 return n, nil 1431} 1432 1433// GUIDFromString parses a string in the form of 1434// "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" into a GUID. 1435func GUIDFromString(str string) (GUID, error) { 1436 guid := GUID{} 1437 str16, err := syscall.UTF16PtrFromString(str) 1438 if err != nil { 1439 return guid, err 1440 } 1441 err = clsidFromString(str16, &guid) 1442 if err != nil { 1443 return guid, err 1444 } 1445 return guid, nil 1446} 1447 1448// GenerateGUID creates a new random GUID. 1449func GenerateGUID() (GUID, error) { 1450 guid := GUID{} 1451 err := coCreateGuid(&guid) 1452 if err != nil { 1453 return guid, err 1454 } 1455 return guid, nil 1456} 1457 1458// String returns the canonical string form of the GUID, 1459// in the form of "{XXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}". 1460func (guid GUID) String() string { 1461 var str [100]uint16 1462 chars := stringFromGUID2(&guid, &str[0], int32(len(str))) 1463 if chars <= 1 { 1464 return "" 1465 } 1466 return string(utf16.Decode(str[:chars-1])) 1467} 1468 1469// KnownFolderPath returns a well-known folder path for the current user, specified by one of 1470// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1471func KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1472 return Token(0).KnownFolderPath(folderID, flags) 1473} 1474 1475// KnownFolderPath returns a well-known folder path for the user token, specified by one of 1476// the FOLDERID_ constants, and chosen and optionally created based on a KF_ flag. 1477func (t Token) KnownFolderPath(folderID *KNOWNFOLDERID, flags uint32) (string, error) { 1478 var p *uint16 1479 err := shGetKnownFolderPath(folderID, flags, t, &p) 1480 if err != nil { 1481 return "", err 1482 } 1483 defer CoTaskMemFree(unsafe.Pointer(p)) 1484 return UTF16PtrToString(p), nil 1485} 1486 1487// RtlGetVersion returns the version of the underlying operating system, ignoring 1488// manifest semantics but is affected by the application compatibility layer. 1489func RtlGetVersion() *OsVersionInfoEx { 1490 info := &OsVersionInfoEx{} 1491 info.osVersionInfoSize = uint32(unsafe.Sizeof(*info)) 1492 // According to documentation, this function always succeeds. 1493 // The function doesn't even check the validity of the 1494 // osVersionInfoSize member. Disassembling ntdll.dll indicates 1495 // that the documentation is indeed correct about that. 1496 _ = rtlGetVersion(info) 1497 return info 1498} 1499 1500// RtlGetNtVersionNumbers returns the version of the underlying operating system, 1501// ignoring manifest semantics and the application compatibility layer. 1502func RtlGetNtVersionNumbers() (majorVersion, minorVersion, buildNumber uint32) { 1503 rtlGetNtVersionNumbers(&majorVersion, &minorVersion, &buildNumber) 1504 buildNumber &= 0xffff 1505 return 1506} 1507 1508// GetProcessPreferredUILanguages retrieves the process preferred UI languages. 1509func GetProcessPreferredUILanguages(flags uint32) ([]string, error) { 1510 return getUILanguages(flags, getProcessPreferredUILanguages) 1511} 1512 1513// GetThreadPreferredUILanguages retrieves the thread preferred UI languages for the current thread. 1514func GetThreadPreferredUILanguages(flags uint32) ([]string, error) { 1515 return getUILanguages(flags, getThreadPreferredUILanguages) 1516} 1517 1518// GetUserPreferredUILanguages retrieves information about the user preferred UI languages. 1519func GetUserPreferredUILanguages(flags uint32) ([]string, error) { 1520 return getUILanguages(flags, getUserPreferredUILanguages) 1521} 1522 1523// GetSystemPreferredUILanguages retrieves the system preferred UI languages. 1524func GetSystemPreferredUILanguages(flags uint32) ([]string, error) { 1525 return getUILanguages(flags, getSystemPreferredUILanguages) 1526} 1527 1528func getUILanguages(flags uint32, f func(flags uint32, numLanguages *uint32, buf *uint16, bufSize *uint32) error) ([]string, error) { 1529 size := uint32(128) 1530 for { 1531 var numLanguages uint32 1532 buf := make([]uint16, size) 1533 err := f(flags, &numLanguages, &buf[0], &size) 1534 if err == ERROR_INSUFFICIENT_BUFFER { 1535 continue 1536 } 1537 if err != nil { 1538 return nil, err 1539 } 1540 buf = buf[:size] 1541 if numLanguages == 0 || len(buf) == 0 { // GetProcessPreferredUILanguages may return numLanguages==0 with "\0\0" 1542 return []string{}, nil 1543 } 1544 if buf[len(buf)-1] == 0 { 1545 buf = buf[:len(buf)-1] // remove terminating null 1546 } 1547 languages := make([]string, 0, numLanguages) 1548 from := 0 1549 for i, c := range buf { 1550 if c == 0 { 1551 languages = append(languages, string(utf16.Decode(buf[from:i]))) 1552 from = i + 1 1553 } 1554 } 1555 return languages, nil 1556 } 1557} 1558 1559func SetConsoleCursorPosition(console Handle, position Coord) error { 1560 return setConsoleCursorPosition(console, *((*uint32)(unsafe.Pointer(&position)))) 1561} 1562 1563func (s NTStatus) Errno() syscall.Errno { 1564 return rtlNtStatusToDosErrorNoTeb(s) 1565} 1566 1567func langID(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } 1568 1569func (s NTStatus) Error() string { 1570 b := make([]uint16, 300) 1571 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) 1572 if err != nil { 1573 return fmt.Sprintf("NTSTATUS 0x%08x", uint32(s)) 1574 } 1575 // trim terminating \r and \n 1576 for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { 1577 } 1578 return string(utf16.Decode(b[:n])) 1579} 1580 1581// NewNTUnicodeString returns a new NTUnicodeString structure for use with native 1582// NT APIs that work over the NTUnicodeString type. Note that most Windows APIs 1583// do not use NTUnicodeString, and instead UTF16PtrFromString should be used for 1584// the more common *uint16 string type. 1585func NewNTUnicodeString(s string) (*NTUnicodeString, error) { 1586 var u NTUnicodeString 1587 s16, err := UTF16PtrFromString(s) 1588 if err != nil { 1589 return nil, err 1590 } 1591 RtlInitUnicodeString(&u, s16) 1592 return &u, nil 1593} 1594 1595// Slice returns a uint16 slice that aliases the data in the NTUnicodeString. 1596func (s *NTUnicodeString) Slice() []uint16 { 1597 var slice []uint16 1598 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1599 hdr.Data = unsafe.Pointer(s.Buffer) 1600 hdr.Len = int(s.Length) 1601 hdr.Cap = int(s.MaximumLength) 1602 return slice 1603} 1604 1605func (s *NTUnicodeString) String() string { 1606 return UTF16ToString(s.Slice()) 1607} 1608 1609// NewNTString returns a new NTString structure for use with native 1610// NT APIs that work over the NTString type. Note that most Windows APIs 1611// do not use NTString, and instead UTF16PtrFromString should be used for 1612// the more common *uint16 string type. 1613func NewNTString(s string) (*NTString, error) { 1614 var nts NTString 1615 s8, err := BytePtrFromString(s) 1616 if err != nil { 1617 return nil, err 1618 } 1619 RtlInitString(&nts, s8) 1620 return &nts, nil 1621} 1622 1623// Slice returns a byte slice that aliases the data in the NTString. 1624func (s *NTString) Slice() []byte { 1625 var slice []byte 1626 hdr := (*unsafeheader.Slice)(unsafe.Pointer(&slice)) 1627 hdr.Data = unsafe.Pointer(s.Buffer) 1628 hdr.Len = int(s.Length) 1629 hdr.Cap = int(s.MaximumLength) 1630 return slice 1631} 1632 1633func (s *NTString) String() string { 1634 return ByteSliceToString(s.Slice()) 1635} 1636 1637// FindResource resolves a resource of the given name and resource type. 1638func FindResource(module Handle, name, resType ResourceIDOrString) (Handle, error) { 1639 var namePtr, resTypePtr uintptr 1640 var name16, resType16 *uint16 1641 var err error 1642 resolvePtr := func(i interface{}, keep **uint16) (uintptr, error) { 1643 switch v := i.(type) { 1644 case string: 1645 *keep, err = UTF16PtrFromString(v) 1646 if err != nil { 1647 return 0, err 1648 } 1649 return uintptr(unsafe.Pointer(*keep)), nil 1650 case ResourceID: 1651 return uintptr(v), nil 1652 } 1653 return 0, errorspkg.New("parameter must be a ResourceID or a string") 1654 } 1655 namePtr, err = resolvePtr(name, &name16) 1656 if err != nil { 1657 return 0, err 1658 } 1659 resTypePtr, err = resolvePtr(resType, &resType16) 1660 if err != nil { 1661 return 0, err 1662 } 1663 resInfo, err := findResource(module, namePtr, resTypePtr) 1664 runtime.KeepAlive(name16) 1665 runtime.KeepAlive(resType16) 1666 return resInfo, err 1667} 1668 1669func LoadResourceData(module, resInfo Handle) (data []byte, err error) { 1670 size, err := SizeofResource(module, resInfo) 1671 if err != nil { 1672 return 1673 } 1674 resData, err := LoadResource(module, resInfo) 1675 if err != nil { 1676 return 1677 } 1678 ptr, err := LockResource(resData) 1679 if err != nil { 1680 return 1681 } 1682 h := (*unsafeheader.Slice)(unsafe.Pointer(&data)) 1683 h.Data = unsafe.Pointer(ptr) 1684 h.Len = int(size) 1685 h.Cap = int(size) 1686 return 1687} 1688