| // 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 syscall |
| |
| import ( |
| "unicode/utf16" |
| "unsafe" |
| ) |
| |
| type Handle uintptr |
| |
| const InvalidHandle = ^Handle(0) |
| |
| /* |
| |
| small demo to detect version of windows you are running: |
| |
| package main |
| |
| import ( |
| "syscall" |
| ) |
| |
| func abort(funcname string, err error) { |
| panic(funcname + " failed: " + err.Error()) |
| } |
| |
| func print_version(v uint32) { |
| major := byte(v) |
| minor := uint8(v >> 8) |
| build := uint16(v >> 16) |
| print("windows version ", major, ".", minor, " (Build ", build, ")\n") |
| } |
| |
| func main() { |
| h, err := syscall.LoadLibrary("kernel32.dll") |
| if err != nil { |
| abort("LoadLibrary", err) |
| } |
| defer syscall.FreeLibrary(h) |
| proc, err := syscall.GetProcAddress(h, "GetVersion") |
| if err != nil { |
| abort("GetProcAddress", err) |
| } |
| r, _, _ := syscall.Syscall(uintptr(proc), 0, 0, 0, 0) |
| print_version(uint32(r)) |
| } |
| |
| */ |
| |
| // StringToUTF16 returns the UTF-16 encoding of the UTF-8 string s, |
| // with a terminating NUL added. |
| func StringToUTF16(s string) []uint16 { return utf16.Encode([]rune(s + "\x00")) } |
| |
| // 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 returns pointer to the UTF-16 encoding of |
| // the UTF-8 string s, with a terminating NUL added. |
| func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] } |
| |
| func Getpagesize() int { return 4096 } |
| |
| // Errno is the Windows error number. |
| type Errno uintptr |
| |
| func langid(pri, sub uint16) uint32 { return uint32(sub)<<10 | uint32(pri) } |
| |
| func (e Errno) Error() string { |
| // deal with special go errors |
| idx := int(e - APPLICATION_ERROR) |
| if 0 <= idx && idx < len(errors) { |
| return errors[idx] |
| } |
| // ask windows for the remaining errors |
| var flags uint32 = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ARGUMENT_ARRAY | FORMAT_MESSAGE_IGNORE_INSERTS |
| b := make([]uint16, 300) |
| n, err := FormatMessage(flags, 0, uint32(e), langid(LANG_ENGLISH, SUBLANG_ENGLISH_US), b, nil) |
| if err != nil { |
| return "error " + itoa(int(e)) + " (FormatMessage failed with err=" + itoa(int(err.(Errno))) + ")" |
| } |
| // trim terminating \r and \n |
| for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- { |
| } |
| return string(utf16.Decode(b[:n])) |
| } |
| |
| func (e Errno) Temporary() bool { |
| return e == EINTR || e == EMFILE || e.Timeout() |
| } |
| |
| func (e Errno) Timeout() bool { |
| return e == EAGAIN || e == EWOULDBLOCK || e == ETIMEDOUT |
| } |
| |
| // Converts a Go function to a function pointer conforming |
| // to the stdcall calling convention. This is useful when |
| // interoperating with Windows code requiring callbacks. |
| // Implemented in ../runtime/windows/syscall.goc |
| func NewCallback(fn interface{}) uintptr |
| |
| // windows api calls |
| |
| //sys GetLastError() (lasterr error) |
| //sys LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW |
| //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 uint32, 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 int) (handle Handle, err error) [failretval==InvalidHandle] |
| //sys FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW |
| //sys FindNextFile(handle Handle, data *Win32finddata) (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 GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW |
| //sys SetEndOfFile(handle Handle) (err error) |
| //sys GetSystemTimeAsFileTime(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 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 |
| |
| // 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 |
| } |
| 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(StringToUTF16Ptr(path), 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 |
| } |
| return int(done), nil |
| } |
| |
| func Write(fd Handle, p []byte) (n int, err error) { |
| var done uint32 |
| e := WriteFile(fd, p, &done, nil) |
| if e != nil { |
| return 0, e |
| } |
| return int(done), nil |
| } |
| |
| 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, 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(h int) (fd Handle) { |
| r, _ := GetStdHandle(h) |
| 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) { |
| return SetCurrentDirectory(&StringToUTF16(path)[0]) |
| } |
| |
| func Mkdir(path string, mode uint32) (err error) { |
| return CreateDirectory(&StringToUTF16(path)[0], nil) |
| } |
| |
| func Rmdir(path string) (err error) { |
| return RemoveDirectory(&StringToUTF16(path)[0]) |
| } |
| |
| func Unlink(path string) (err error) { |
| return DeleteFile(&StringToUTF16(path)[0]) |
| } |
| |
| func Rename(oldpath, newpath string) (err error) { |
| from := &StringToUTF16(oldpath)[0] |
| to := &StringToUTF16(newpath)[0] |
| return MoveFile(from, to) |
| } |
| |
| 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 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 EINVAL |
| } |
| h, e := CreateFile(StringToUTF16Ptr(path), |
| FILE_WRITE_ATTRIBUTES, FILE_SHARE_WRITE, nil, |
| OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 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 Fsync(fd Handle) (err error) { |
| return FlushFileBuffers(fd) |
| } |
| |
| func Chmod(path string, mode uint32) (err error) { |
| if mode == 0 { |
| return EINVAL |
| } |
| p := StringToUTF16Ptr(path) |
| 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) |
| } |
| |
| // net api calls |
| |
| //sys WSAStartup(verreq uint32, data *WSAData) (sockerr error) = ws2_32.WSAStartup |
| //sys WSACleanup() (err error) [failretval==-1] = 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==-1] = 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==-1] = ws2_32.setsockopt |
| //sys bind(s Handle, name uintptr, namelen int32) (err error) [failretval==-1] = ws2_32.bind |
| //sys connect(s Handle, name uintptr, namelen int32) (err error) [failretval==-1] = ws2_32.connect |
| //sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==-1] = ws2_32.getsockname |
| //sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (err error) [failretval==-1] = ws2_32.getpeername |
| //sys listen(s Handle, backlog int32) (err error) [failretval==-1] = ws2_32.listen |
| //sys shutdown(s Handle, how int32) (err error) [failretval==-1] = ws2_32.shutdown |
| //sys Closesocket(s Handle) (err error) [failretval==-1] = 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==-1] = ws2_32.WSARecv |
| //sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (err error) [failretval==-1] = 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==-1] = 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==-1] = 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 GetIfEntry(pIfRow *MibIfRow) (errcode error) = iphlpapi.GetIfEntry |
| //sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode error) = iphlpapi.GetAdaptersInfo |
| |
| // 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 RawSockaddr struct { |
| Family uint16 |
| Data [14]int8 |
| } |
| |
| type RawSockaddrAny struct { |
| Addr RawSockaddr |
| Pad [96]int8 |
| } |
| |
| type Sockaddr interface { |
| sockaddr() (ptr uintptr, len int32, err error) // lowercase; only we can define Sockaddrs |
| } |
| |
| type SockaddrInet4 struct { |
| Port int |
| Addr [4]byte |
| raw RawSockaddrInet4 |
| } |
| |
| func (sa *SockaddrInet4) sockaddr() (uintptr, int32, error) { |
| if sa.Port < 0 || sa.Port > 0xFFFF { |
| return 0, 0, 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 uintptr(unsafe.Pointer(&sa.raw)), int32(unsafe.Sizeof(sa.raw)), nil |
| } |
| |
| type SockaddrInet6 struct { |
| Port int |
| ZoneId uint32 |
| Addr [16]byte |
| } |
| |
| func (sa *SockaddrInet6) sockaddr() (uintptr, int32, error) { |
| // TODO(brainman): implement SockaddrInet6.sockaddr() |
| return 0, 0, EWINDOWS |
| } |
| |
| type SockaddrUnix struct { |
| Name string |
| } |
| |
| func (sa *SockaddrUnix) sockaddr() (uintptr, int32, error) { |
| // TODO(brainman): implement SockaddrUnix.sockaddr() |
| return 0, 0, EWINDOWS |
| } |
| |
| func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) { |
| switch rsa.Addr.Family { |
| case AF_UNIX: |
| return nil, 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: |
| return nil, EWINDOWS |
| } |
| return nil, EAFNOSUPPORT |
| } |
| |
| func Socket(domain, typ, proto int) (fd Handle, err error) { |
| if domain == AF_INET6 && SocketDisableIPv6 { |
| return InvalidHandle, 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) |
| } |
| |
| // 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 syscall package for other operating systems. |
| type Timespec struct { |
| Sec int64 |
| Nsec int64 |
| } |
| |
| // TODO(brainman): fix all needed for net |
| |
| func Accept(fd Handle) (nfd Handle, sa Sockaddr, err error) { return 0, nil, EWINDOWS } |
| func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, err error) { |
| return 0, nil, EWINDOWS |
| } |
| func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (err error) { return EWINDOWS } |
| func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (err error) { return EWINDOWS } |
| |
| type Linger struct { |
| Onoff int32 |
| Linger int32 |
| } |
| |
| 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, EWINDOWS } |
| func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (err error) { return EWINDOWS } |
| 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 EWINDOWS } |
| |
| // TODO(brainman): fix all needed for os |
| |
| func Getpid() (pid int) { return -1 } |
| func Getppid() (ppid int) { return -1 } |
| |
| func Fchdir(fd Handle) (err error) { return EWINDOWS } |
| func Link(oldpath, newpath string) (err error) { return EWINDOWS } |
| func Symlink(path, link string) (err error) { return EWINDOWS } |
| func Readlink(path string, buf []byte) (n int, err error) { return 0, EWINDOWS } |
| |
| func Fchmod(fd Handle, mode uint32) (err error) { return EWINDOWS } |
| func Chown(path string, uid int, gid int) (err error) { return EWINDOWS } |
| func Lchown(path string, uid int, gid int) (err error) { return EWINDOWS } |
| func Fchown(fd Handle, uid int, gid int) (err error) { return 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, 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)) |
| } |