--- /dev/null
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Windows system calls.
+
+package windows
+
+import (
+ errorspkg "errors"
+ "sync"
+ "syscall"
+ "unicode/utf16"
+ "unsafe"
+)
+
+type Handle uintptr
+
+const InvalidHandle = ^Handle(0)
+
+// StringToUTF16 is deprecated. Use UTF16FromString instead.
+// If s contains a NUL byte this function panics instead of
+// returning an error.
+func StringToUTF16(s string) []uint16 {
+ a, err := UTF16FromString(s)
+ if err != nil {
+ panic("windows: string with NUL passed to StringToUTF16")
+ }
+ return a
+}
+
+// UTF16FromString returns the UTF-16 encoding of the UTF-8 string
+// s, with a terminating NUL added. If s contains a NUL byte at any
+// location, it returns (nil, syscall.EINVAL).
+func UTF16FromString(s string) ([]uint16, error) {
+ for i := 0; i < len(s); i++ {
+ if s[i] == 0 {
+ return nil, syscall.EINVAL
+ }
+ }
+ return utf16.Encode([]rune(s + "\x00")), nil
+}
+
+// UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,
+// with a terminating NUL removed.
+func UTF16ToString(s []uint16) string {
+ for i, v := range s {
+ if v == 0 {
+ s = s[0:i]
+ break
+ }
+ }
+ return string(utf16.Decode(s))
+}
+
+// StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead.
+// If s contains a NUL byte this function panics instead of
+// returning an error.
+func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] }
+
+// UTF16PtrFromString returns pointer to the UTF-16 encoding of
+// the UTF-8 string s, with a terminating NUL added. If s
+// contains a NUL byte at any location, it returns (nil, syscall.EINVAL).
+func UTF16PtrFromString(s string) (*uint16, error) {
+ a, err := UTF16FromString(s)
+ if err != nil {
+ return nil, err
+ }
+ return &a[0], nil
+}
+
+func Getpagesize() int { return 4096 }
+
+// Converts a Go function to a function pointer conforming
+// to the stdcall or cdecl calling convention. This is useful when
+// interoperating with Windows code requiring callbacks.
+// Implemented in runtime/syscall_windows.goc
+func NewCallback(fn interface{}) uintptr
+func NewCallbackCDecl(fn interface{}) uintptr
+
+// windows api calls
+
+//sys GetLastError() (lasterr error)
+//sys LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW
+//sys LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW
+//sys FreeLibrary(handle Handle) (err error)
+//sys GetProcAddress(module Handle, procname string) (proc uintptr, err error)
+//sys GetVersion() (ver uint32, err error)
+//sys FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW
+//sys ExitProcess(exitcode uint32)
+//sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile int32) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
+//sys ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
+//sys WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
+//sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]
+//sys CloseHandle(handle Handle) (err error)
+//sys GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle]
+//sys SetStdHandle(stdhandle uint32, handle Handle) (err error)
+//sys findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW
+//sys findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW
+//sys FindClose(handle Handle) (err error)
+//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
+//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW
+//sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW
+//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW
+//sys RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW
+//sys DeleteFile(path *uint16) (err error) = DeleteFileW
+//sys MoveFile(from *uint16, to *uint16) (err error) = MoveFileW
+//sys MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW
+//sys GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW
+//sys GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW
+//sys SetEndOfFile(handle Handle) (err error)
+//sys GetSystemTimeAsFileTime(time *Filetime)
+//sys GetSystemTimePreciseAsFileTime(time *Filetime)
+//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]
+//sys CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uint32, threadcnt uint32) (handle Handle, err error)
+//sys GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uint32, overlapped **Overlapped, timeout uint32) (err error)
+//sys PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uint32, overlapped *Overlapped) (err error)
+//sys CancelIo(s Handle) (err error)
+//sys CancelIoEx(s Handle, o *Overlapped) (err error)
+//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
+//sys OpenProcess(da uint32, inheritHandle bool, pid uint32) (handle Handle, err error)
+//sys TerminateProcess(handle Handle, exitcode uint32) (err error)
+//sys GetExitCodeProcess(handle Handle, exitcode *uint32) (err error)
+//sys GetStartupInfo(startupInfo *StartupInfo) (err error) = GetStartupInfoW
+//sys GetCurrentProcess() (pseudoHandle Handle, err error)
+//sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error)
+//sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)
+//sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]
+//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW
+//sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error)
+//sys GetFileType(filehandle Handle) (n uint32, err error)
+//sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW
+//sys CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext
+//sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom
+//sys GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW
+//sys FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW
+//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW
+//sys SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW
+//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
+//sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
+//sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW
+//sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW
+//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
+//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW
+//sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0]
+//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error)
+//sys FlushFileBuffers(handle Handle) (err error)
+//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW
+//sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW
+//sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW
+//sys CreateFileMapping(fhandle Handle, sa *SecurityAttributes, prot uint32, maxSizeHigh uint32, maxSizeLow uint32, name *uint16) (handle Handle, err error) = kernel32.CreateFileMappingW
+//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error)
+//sys UnmapViewOfFile(addr uintptr) (err error)
+//sys FlushViewOfFile(addr uintptr, length uintptr) (err error)
+//sys VirtualLock(addr uintptr, length uintptr) (err error)
+//sys VirtualUnlock(addr uintptr, length uintptr) (err error)
+//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile
+//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW
+//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW
+//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) [failretval==InvalidHandle] = crypt32.CertOpenStore
+//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore
+//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore
+//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore
+//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain
+//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain
+//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext
+//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext
+//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy
+//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW
+//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey
+//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
+//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW
+//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW
+//sys getCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId
+//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode
+//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
+//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
+//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot
+//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW
+//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW
+//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error)
+// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL.
+//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW
+//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW
+//sys GetCurrentThreadId() (id uint32)
+//sys CreateEvent(eventAttrs *syscall.SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW
+//sys SetEvent(event Handle) (err error) = kernel32.SetEvent
+
+// syscall interface implementation for other packages
+
+func Exit(code int) { ExitProcess(uint32(code)) }
+
+func makeInheritSa() *SecurityAttributes {
+ var sa SecurityAttributes
+ sa.Length = uint32(unsafe.Sizeof(sa))
+ sa.InheritHandle = 1
+ return &sa
+}
+
+func Open(path string, mode int, perm uint32) (fd Handle, err error) {
+ if len(path) == 0 {
+ return InvalidHandle, ERROR_FILE_NOT_FOUND
+ }
+ pathp, err := UTF16PtrFromString(path)
+ if err != nil {
+ return InvalidHandle, err
+ }
+ var access uint32
+ switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
+ case O_RDONLY:
+ access = GENERIC_READ
+ case O_WRONLY:
+ access = GENERIC_WRITE
+ case O_RDWR:
+ access = GENERIC_READ | GENERIC_WRITE
+ }
+ if mode&O_CREAT != 0 {
+ access |= GENERIC_WRITE
+ }
+ if mode&O_APPEND != 0 {
+ access &^= GENERIC_WRITE
+ access |= FILE_APPEND_DATA
+ }
+ sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE)
+ var sa *SecurityAttributes
+ if mode&O_CLOEXEC == 0 {
+ sa = makeInheritSa()
+ }
+ var createmode uint32
+ switch {
+ case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):
+ createmode = CREATE_NEW
+ case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):
+ createmode = CREATE_ALWAYS
+ case mode&O_CREAT == O_CREAT:
+ createmode = OPEN_ALWAYS
+ case mode&O_TRUNC == O_TRUNC:
+ createmode = TRUNCATE_EXISTING
+ default:
+ createmode = OPEN_EXISTING
+ }
+ h, e := CreateFile(pathp, access, sharemode, sa, createmode, FILE_ATTRIBUTE_NORMAL, 0)
+ return h, e
+}
+
+func Read(fd Handle, p []byte) (n int, err error) {
+ var done uint32
+ e := ReadFile(fd, p, &done, nil)
+ if e != nil {
+ if e == ERROR_BROKEN_PIPE {
+ // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin
+ return 0, nil
+ }
+ return 0, e
+ }
+ if raceenabled {
+ if done > 0 {
+ raceWriteRange(unsafe.Pointer(&p[0]), int(done))
+ }
+ raceAcquire(unsafe.Pointer(&ioSync))
+ }
+ return int(done), nil
+}
+
+func Write(fd Handle, p []byte) (n int, err error) {
+ if raceenabled {
+ raceReleaseMerge(unsafe.Pointer(&ioSync))
+ }
+ var done uint32
+ e := WriteFile(fd, p, &done, nil)
+ if e != nil {
+ return 0, e
+ }
+ if raceenabled && done > 0 {
+ raceReadRange(unsafe.Pointer(&p[0]), int(done))
+ }
+ return int(done), nil
+}
+
+var ioSync int64
+
+func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) {
+ var w uint32
+ switch whence {
+ case 0:
+ w = FILE_BEGIN
+ case 1:
+ w = FILE_CURRENT
+ case 2:
+ w = FILE_END
+ }
+ hi := int32(offset >> 32)
+ lo := int32(offset)
+ // use GetFileType to check pipe, pipe can't do seek
+ ft, _ := GetFileType(fd)
+ if ft == FILE_TYPE_PIPE {
+ return 0, syscall.EPIPE
+ }
+ rlo, e := SetFilePointer(fd, lo, &hi, w)
+ if e != nil {
+ return 0, e
+ }
+ return int64(hi)<<32 + int64(rlo), nil
+}
+
+func Close(fd Handle) (err error) {
+ return CloseHandle(fd)
+}
+
+var (
+ Stdin = getStdHandle(STD_INPUT_HANDLE)
+ Stdout = getStdHandle(STD_OUTPUT_HANDLE)
+ Stderr = getStdHandle(STD_ERROR_HANDLE)
+)
+
+func getStdHandle(stdhandle uint32) (fd Handle) {
+ r, _ := GetStdHandle(stdhandle)
+ CloseOnExec(r)
+ return r
+}
+
+const ImplementsGetwd = true
+
+func Getwd() (wd string, err error) {
+ b := make([]uint16, 300)
+ n, e := GetCurrentDirectory(uint32(len(b)), &b[0])
+ if e != nil {
+ return "", e
+ }
+ return string(utf16.Decode(b[0:n])), nil
+}
+
+func Chdir(path string) (err error) {
+ pathp, err := UTF16PtrFromString(path)
+ if err != nil {
+ return err
+ }
+ return SetCurrentDirectory(pathp)
+}
+
+func Mkdir(path string, mode uint32) (err error) {
+ pathp, err := UTF16PtrFromString(path)
+ if err != nil {
+ return err
+ }
+ return CreateDirectory(pathp, nil)
+}
+
+func Rmdir(path string) (err error) {
+ pathp, err := UTF16PtrFromString(path)
+ if err != nil {
+ return err
+ }
+ return RemoveDirectory(pathp)
+}
+
+func Unlink(path string) (err error) {
+ pathp, err := UTF16PtrFromString(path)
+ if err != nil {
+ return err
+ }
+ return DeleteFile(pathp)
+}
+
+func Rename(oldpath, newpath string) (err error) {
+ from, err := UTF16PtrFromString(oldpath)
+ if err != nil {
+ return err
+ }
+ to, err := UTF16PtrFromString(newpath)
+ if err != nil {
+ return err
+ }
+ return MoveFileEx(from, to, MOVEFILE_REPLACE_EXISTING)
+}
+
+func ComputerName() (name string, err error) {
+ var n uint32 = MAX_COMPUTERNAME_LENGTH + 1
+ b := make([]uint16, n)
+ e := GetComputerName(&b[0], &n)
+ if e != nil {
+ return "", e
+ }
+ return string(utf16.Decode(b[0:n])), nil
+}
+
+func Ftruncate(fd Handle, length int64) (err error) {
+ curoffset, e := Seek(fd, 0, 1)
+ if e != nil {
+ return e
+ }
+ defer Seek(fd, curoffset, 0)
+ _, e = Seek(fd, length, 0)
+ if e != nil {
+ return e
+ }
+ e = SetEndOfFile(fd)
+ if e != nil {
+ return e
+ }
+ return nil
+}
+
+func Gettimeofday(tv *Timeval) (err error) {
+ var ft Filetime
+ GetSystemTimeAsFileTime(&ft)
+ *tv = NsecToTimeval(ft.Nanoseconds())
+ return nil
+}
+
+func Pipe(p []Handle) (err error) {
+ if len(p) != 2 {
+ return syscall.EINVAL
+ }
+ var r, w Handle
+ e := CreatePipe(&r, &w, makeInheritSa(), 0)
+ if e != nil {
+ return e
+ }
+ p[0] = r
+ p[1] = w
+ return nil
+}
+
+func Utimes(path string, tv []Timeval) (err error) {
+ if len(tv) != 2 {
+ return syscall.EINVAL
+ }
+ pathp, e := UTF16PtrFromString(path)
+ if e != nil {
+ return e
+ }
+ h, e := CreateFile(pathp,
+ FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)
+ if e != nil {
+ return e
+ }
+ defer Close(h)
+ a := NsecToFiletime(tv[0].Nanoseconds())
+ w := NsecToFiletime(tv[1].Nanoseconds())
+ return SetFileTime(h, nil, &a, &w)
+}
+
+func UtimesNano(path string, ts []Timespec) (err error) {
+ if len(ts) != 2 {
+ return syscall.EINVAL
+ }
+ pathp, e := UTF16PtrFromString(path)
+ if e != nil {
+ return e
+ }
+ h, e := CreateFile(pathp,
+ FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0)
+ if e != nil {
+ return e
+ }
+ defer Close(h)
+ a := NsecToFiletime(TimespecToNsec(ts[0]))
+ w := NsecToFiletime(TimespecToNsec(ts[1]))
+ return SetFileTime(h, nil, &a, &w)
+}
+
+func Fsync(fd Handle) (err error) {
+ return FlushFileBuffers(fd)
+}
+
+func Chmod(path string, mode uint32) (err error) {
+ if mode == 0 {
+ return syscall.EINVAL
+ }
+ p, e := UTF16PtrFromString(path)
+ if e != nil {
+ return e
+ }
+ attrs, e := GetFileAttributes(p)
+ if e != nil {
+ return e
+ }
+ if mode&S_IWRITE != 0 {
+ attrs &^= FILE_ATTRIBUTE_READONLY
+ } else {
+ attrs |= FILE_ATTRIBUTE_READONLY
+ }
+ return SetFileAttributes(p, attrs)
+}
+
+func LoadCancelIoEx() error {
+ return procCancelIoEx.Find()
+}
+
+func LoadSetFileCompletionNotificationModes() error {
+ return procSetFileCompletionNotificationModes.Find()
+}
+
+// net api calls
+
+const socket_error = uintptr(^uint32(0))
+
+//sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup
+//sys WSACleanup() (err error) [failretval==socket_error] = ws2_32.WSACleanup
+//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
+//sys socket(af int32, typ int32, protocol int32) (handle Handle, err error) [failretval==InvalidHandle] = ws2_32.socket
+//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (err error) [failretval==socket_error] = ws2_32.setsockopt
+//sys Getsockopt(s Handle, level int32, optname int32, optval *byte, optlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockopt
+//sys bind(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.bind
+//sys connect(s Handle, name unsafe.Pointer, namelen int32) (err error) [failretval==socket_error] = ws2_32.connect
+//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getsockname
+//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==socket_error] = ws2_32.getpeername
+//sys listen(s Handle, backlog int32) (err error) [failretval==socket_error] = ws2_32.listen
+//sys shutdown(s Handle, how int32) (err error) [failretval==socket_error] = ws2_32.shutdown
+//sys Closesocket(s Handle) (err error) [failretval==socket_error] = ws2_32.closesocket
+//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (err error) = mswsock.AcceptEx
+//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = mswsock.GetAcceptExSockaddrs
+//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSARecv
+//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==socket_error] = ws2_32.WSASend
+//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
+//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
+//sys GetHostByName(name string) (h *Hostent, err error) [failretval==nil] = ws2_32.gethostbyname
+//sys GetServByName(name string, proto string) (s *Servent, err error) [failretval==nil] = ws2_32.getservbyname
+//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs
+//sys GetProtoByName(name string) (p *Protoent, err error) [failretval==nil] = ws2_32.getprotobyname
+//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status error) = dnsapi.DnsQuery_W
+//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree
+//sys DnsNameCompare(name1 *uint16, name2 *uint16) (same bool) = dnsapi.DnsNameCompare_W
+//sys GetAddrInfoW(nodename *uint16, servicename *uint16, hints *AddrinfoW, result **AddrinfoW) (sockerr error) = ws2_32.GetAddrInfoW
+//sys FreeAddrInfoW(addrinfo *AddrinfoW) = ws2_32.FreeAddrInfoW
+//sys GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry
+//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo
+//sys SetFileCompletionNotificationModes(handle Handle, flags uint8) (err error) = kernel32.SetFileCompletionNotificationModes
+//sys WSAEnumProtocols(protocols *int32, protocolBuffer *WSAProtocolInfo, bufferLength *uint32) (n int32, err error) [failretval==-1] = ws2_32.WSAEnumProtocolsW
+//sys GetAdaptersAddresses(family uint32, flags uint32, reserved uintptr, adapterAddresses *IpAdapterAddresses, sizePointer *uint32) (errcode error) = iphlpapi.GetAdaptersAddresses
+//sys GetACP() (acp uint32) = kernel32.GetACP
+//sys MultiByteToWideChar(codePage uint32, dwFlags uint32, str *byte, nstr int32, wchar *uint16, nwchar int32) (nwrite int32, err error) = kernel32.MultiByteToWideChar
+
+// For testing: clients can set this flag to force
+// creation of IPv6 sockets to return EAFNOSUPPORT.
+var SocketDisableIPv6 bool
+
+type RawSockaddrInet4 struct {
+ Family uint16
+ Port uint16
+ Addr [4]byte /* in_addr */
+ Zero [8]uint8
+}
+
+type RawSockaddrInet6 struct {
+ Family uint16
+ Port uint16
+ Flowinfo uint32
+ Addr [16]byte /* in6_addr */
+ Scope_id uint32
+}
+
+type RawSockaddr struct {
+ Family uint16
+ Data [14]int8
+}
+
+type RawSockaddrAny struct {
+ Addr RawSockaddr
+ Pad [96]int8
+}
+
+type Sockaddr interface {
+ sockaddr() (ptr unsafe.Pointer, len int32, err error) // lowercase; only we can define Sockaddrs
+}
+
+type SockaddrInet4 struct {
+ Port int
+ Addr [4]byte
+ raw RawSockaddrInet4
+}
+
+func (sa *SockaddrInet4) sockaddr() (unsafe.Pointer, int32, error) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return nil, 0, syscall.EINVAL
+ }
+ sa.raw.Family = AF_INET
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
+}
+
+type SockaddrInet6 struct {
+ Port int
+ ZoneId uint32
+ Addr [16]byte
+ raw RawSockaddrInet6
+}
+
+func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) {
+ if sa.Port < 0 || sa.Port > 0xFFFF {
+ return nil, 0, syscall.EINVAL
+ }
+ sa.raw.Family = AF_INET6
+ p := (*[2]byte)(unsafe.Pointer(&sa.raw.Port))
+ p[0] = byte(sa.Port >> 8)
+ p[1] = byte(sa.Port)
+ sa.raw.Scope_id = sa.ZoneId
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.raw.Addr[i] = sa.Addr[i]
+ }
+ return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
+}
+
+type SockaddrUnix struct {
+ Name string
+}
+
+func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {
+ // TODO(brainman): implement SockaddrUnix.sockaddr()
+ return nil, 0, syscall.EWINDOWS
+}
+
+func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {
+ switch rsa.Addr.Family {
+ case AF_UNIX:
+ return nil, syscall.EWINDOWS
+
+ case AF_INET:
+ pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet4)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, nil
+
+ case AF_INET6:
+ pp := (*RawSockaddrInet6)(unsafe.Pointer(rsa))
+ sa := new(SockaddrInet6)
+ p := (*[2]byte)(unsafe.Pointer(&pp.Port))
+ sa.Port = int(p[0])<<8 + int(p[1])
+ sa.ZoneId = pp.Scope_id
+ for i := 0; i < len(sa.Addr); i++ {
+ sa.Addr[i] = pp.Addr[i]
+ }
+ return sa, nil
+ }
+ return nil, syscall.EAFNOSUPPORT
+}
+
+func Socket(domain, typ, proto int) (fd Handle, err error) {
+ if domain == AF_INET6 && SocketDisableIPv6 {
+ return InvalidHandle, syscall.EAFNOSUPPORT
+ }
+ return socket(int32(domain), int32(typ), int32(proto))
+}
+
+func SetsockoptInt(fd Handle, level, opt int, value int) (err error) {
+ v := int32(value)
+ return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v)))
+}
+
+func Bind(fd Handle, sa Sockaddr) (err error) {
+ ptr, n, err := sa.sockaddr()
+ if err != nil {
+ return err
+ }
+ return bind(fd, ptr, n)
+}
+
+func Connect(fd Handle, sa Sockaddr) (err error) {
+ ptr, n, err := sa.sockaddr()
+ if err != nil {
+ return err
+ }
+ return connect(fd, ptr, n)
+}
+
+func Getsockname(fd Handle) (sa Sockaddr, err error) {
+ var rsa RawSockaddrAny
+ l := int32(unsafe.Sizeof(rsa))
+ if err = getsockname(fd, &rsa, &l); err != nil {
+ return
+ }
+ return rsa.Sockaddr()
+}
+
+func Getpeername(fd Handle) (sa Sockaddr, err error) {
+ var rsa RawSockaddrAny
+ l := int32(unsafe.Sizeof(rsa))
+ if err = getpeername(fd, &rsa, &l); err != nil {
+ return
+ }
+ return rsa.Sockaddr()
+}
+
+func Listen(s Handle, n int) (err error) {
+ return listen(s, int32(n))
+}
+
+func Shutdown(fd Handle, how int) (err error) {
+ return shutdown(fd, int32(how))
+}
+
+func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (err error) {
+ rsa, l, err := to.sockaddr()
+ if err != nil {
+ return err
+ }
+ return WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)
+}
+
+func LoadGetAddrInfo() error {
+ return procGetAddrInfoW.Find()
+}
+
+var connectExFunc struct {
+ once sync.Once
+ addr uintptr
+ err error
+}
+
+func LoadConnectEx() error {
+ connectExFunc.once.Do(func() {
+ var s Handle
+ s, connectExFunc.err = Socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)
+ if connectExFunc.err != nil {
+ return
+ }
+ defer CloseHandle(s)
+ var n uint32
+ connectExFunc.err = WSAIoctl(s,
+ SIO_GET_EXTENSION_FUNCTION_POINTER,
+ (*byte)(unsafe.Pointer(&WSAID_CONNECTEX)),
+ uint32(unsafe.Sizeof(WSAID_CONNECTEX)),
+ (*byte)(unsafe.Pointer(&connectExFunc.addr)),
+ uint32(unsafe.Sizeof(connectExFunc.addr)),
+ &n, nil, 0)
+ })
+ return connectExFunc.err
+}
+
+func connectEx(s Handle, name unsafe.Pointer, namelen int32, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) (err error) {
+ 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)
+ if r1 == 0 {
+ if e1 != 0 {
+ err = error(e1)
+ } else {
+ err = syscall.EINVAL
+ }
+ }
+ return
+}
+
+func ConnectEx(fd Handle, sa Sockaddr, sendBuf *byte, sendDataLen uint32, bytesSent *uint32, overlapped *Overlapped) error {
+ err := LoadConnectEx()
+ if err != nil {
+ return errorspkg.New("failed to find ConnectEx: " + err.Error())
+ }
+ ptr, n, err := sa.sockaddr()
+ if err != nil {
+ return err
+ }
+ return connectEx(fd, ptr, n, sendBuf, sendDataLen, bytesSent, overlapped)
+}
+
+// Invented structures to support what package os expects.
+type Rusage struct {
+ CreationTime Filetime
+ ExitTime Filetime
+ KernelTime Filetime
+ UserTime Filetime
+}
+
+type WaitStatus struct {
+ ExitCode uint32
+}
+
+func (w WaitStatus) Exited() bool { return true }
+
+func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) }
+
+func (w WaitStatus) Signal() Signal { return -1 }
+
+func (w WaitStatus) CoreDump() bool { return false }
+
+func (w WaitStatus) Stopped() bool { return false }
+
+func (w WaitStatus) Continued() bool { return false }
+
+func (w WaitStatus) StopSignal() Signal { return -1 }
+
+func (w WaitStatus) Signaled() bool { return false }
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+// Timespec is an invented structure on Windows, but here for
+// consistency with the corresponding package for other operating systems.
+type Timespec struct {
+ Sec int64
+ Nsec int64
+}
+
+func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
+
+func NsecToTimespec(nsec int64) (ts Timespec) {
+ ts.Sec = nsec / 1e9
+ ts.Nsec = nsec % 1e9
+ return
+}
+
+// TODO(brainman): fix all needed for net
+
+func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, syscall.EWINDOWS }
+func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) {
+ return 0, nil, syscall.EWINDOWS
+}
+func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { return syscall.EWINDOWS }
+func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return syscall.EWINDOWS }
+
+// The Linger struct is wrong but we only noticed after Go 1.
+// sysLinger is the real system call structure.
+
+// BUG(brainman): The definition of Linger is not appropriate for direct use
+// with Setsockopt and Getsockopt.
+// Use SetsockoptLinger instead.
+
+type Linger struct {
+ Onoff int32
+ Linger int32
+}
+
+type sysLinger struct {
+ Onoff uint16
+ Linger uint16
+}
+
+type IPMreq struct {
+ Multiaddr [4]byte /* in_addr */
+ Interface [4]byte /* in_addr */
+}
+
+type IPv6Mreq struct {
+ Multiaddr [16]byte /* in6_addr */
+ Interface uint32
+}
+
+func GetsockoptInt(fd Handle, level, opt int) (int, error) { return -1, syscall.EWINDOWS }
+
+func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) {
+ sys := sysLinger{Onoff: uint16(l.Onoff), Linger: uint16(l.Linger)}
+ return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&sys)), int32(unsafe.Sizeof(sys)))
+}
+
+func SetsockoptInet4Addr(fd Handle, level, opt int, value [4]byte) (err error) {
+ return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&value[0])), 4)
+}
+func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (err error) {
+ return Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(mreq)), int32(unsafe.Sizeof(*mreq)))
+}
+func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (err error) {
+ return syscall.EWINDOWS
+}
+
+func Getpid() (pid int) { return int(getCurrentProcessId()) }
+
+func FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) {
+ // NOTE(rsc): The Win32finddata struct is wrong for the system call:
+ // the two paths are each one uint16 short. Use the correct struct,
+ // a win32finddata1, and then copy the results out.
+ // There is no loss of expressivity here, because the final
+ // uint16, if it is used, is supposed to be a NUL, and Go doesn't need that.
+ // For Go 1.1, we might avoid the allocation of win32finddata1 here
+ // by adding a final Bug [2]uint16 field to the struct and then
+ // adjusting the fields in the result directly.
+ var data1 win32finddata1
+ handle, err = findFirstFile1(name, &data1)
+ if err == nil {
+ copyFindData(data, &data1)
+ }
+ return
+}
+
+func FindNextFile(handle Handle, data *Win32finddata) (err error) {
+ var data1 win32finddata1
+ err = findNextFile1(handle, &data1)
+ if err == nil {
+ copyFindData(data, &data1)
+ }
+ return
+}
+
+func getProcessEntry(pid int) (*ProcessEntry32, error) {
+ snapshot, err := CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0)
+ if err != nil {
+ return nil, err
+ }
+ defer CloseHandle(snapshot)
+ var procEntry ProcessEntry32
+ procEntry.Size = uint32(unsafe.Sizeof(procEntry))
+ if err = Process32First(snapshot, &procEntry); err != nil {
+ return nil, err
+ }
+ for {
+ if procEntry.ProcessID == uint32(pid) {
+ return &procEntry, nil
+ }
+ err = Process32Next(snapshot, &procEntry)
+ if err != nil {
+ return nil, err
+ }
+ }
+}
+
+func Getppid() (ppid int) {
+ pe, err := getProcessEntry(Getpid())
+ if err != nil {
+ return -1
+ }
+ return int(pe.ParentProcessID)
+}
+
+// TODO(brainman): fix all needed for os
+func Fchdir(fd Handle) (err error) { return syscall.EWINDOWS }
+func Link(oldpath, newpath string) (err error) { return syscall.EWINDOWS }
+func Symlink(path, link string) (err error) { return syscall.EWINDOWS }
+
+func Fchmod(fd Handle, mode uint32) (err error) { return syscall.EWINDOWS }
+func Chown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS }
+func Lchown(path string, uid int, gid int) (err error) { return syscall.EWINDOWS }
+func Fchown(fd Handle, uid int, gid int) (err error) { return syscall.EWINDOWS }
+
+func Getuid() (uid int) { return -1 }
+func Geteuid() (euid int) { return -1 }
+func Getgid() (gid int) { return -1 }
+func Getegid() (egid int) { return -1 }
+func Getgroups() (gids []int, err error) { return nil, syscall.EWINDOWS }
+
+type Signal int
+
+func (s Signal) Signal() {}
+
+func (s Signal) String() string {
+ if 0 <= s && int(s) < len(signals) {
+ str := signals[s]
+ if str != "" {
+ return str
+ }
+ }
+ return "signal " + itoa(int(s))
+}
+
+func LoadCreateSymbolicLink() error {
+ return procCreateSymbolicLinkW.Find()
+}
+
+// Readlink returns the destination of the named symbolic link.
+func Readlink(path string, buf []byte) (n int, err error) {
+ fd, err := CreateFile(StringToUTF16Ptr(path), GENERIC_READ, 0, nil, OPEN_EXISTING,
+ FILE_FLAG_OPEN_REPARSE_POINT|FILE_FLAG_BACKUP_SEMANTICS, 0)
+ if err != nil {
+ return -1, err
+ }
+ defer CloseHandle(fd)
+
+ rdbbuf := make([]byte, MAXIMUM_REPARSE_DATA_BUFFER_SIZE)
+ var bytesReturned uint32
+ err = DeviceIoControl(fd, FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil)
+ if err != nil {
+ return -1, err
+ }
+
+ rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0]))
+ var s string
+ switch rdb.ReparseTag {
+ case IO_REPARSE_TAG_SYMLINK:
+ data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))
+ p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))
+ s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])
+ case IO_REPARSE_TAG_MOUNT_POINT:
+ data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer))
+ p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0]))
+ s = UTF16ToString(p[data.PrintNameOffset/2 : (data.PrintNameLength-data.PrintNameOffset)/2])
+ default:
+ // the path is not a symlink or junction but another type of reparse
+ // point
+ return -1, syscall.ENOENT
+ }
+ n = copy(buf, []byte(s))
+
+ return n, nil
+}
Code Review / govpp.git / blobdiff