mirror of
https://github.com/k3s-io/kubernetes.git
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1025 lines
38 KiB
Go
1025 lines
38 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Windows system calls.
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package windows
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import (
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errorspkg "errors"
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"sync"
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"syscall"
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"unicode/utf16"
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"unsafe"
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)
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type Handle uintptr
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const InvalidHandle = ^Handle(0)
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// StringToUTF16 is deprecated. Use UTF16FromString instead.
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// If s contains a NUL byte this function panics instead of
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// returning an error.
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func StringToUTF16(s string) []uint16 {
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a, err := UTF16FromString(s)
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if err != nil {
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panic("windows: string with NUL passed to StringToUTF16")
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}
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return a
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}
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// UTF16FromString returns the UTF-16 encoding of the UTF-8 string
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// s, with a terminating NUL added. If s contains a NUL byte at any
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// location, it returns (nil, syscall.EINVAL).
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func UTF16FromString(s string) ([]uint16, error) {
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for i := 0; i < len(s); i++ {
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if s[i] == 0 {
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return nil, syscall.EINVAL
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}
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}
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return utf16.Encode([]rune(s + "\x00")), nil
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}
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// UTF16ToString returns the UTF-8 encoding of the UTF-16 sequence s,
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// with a terminating NUL removed.
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func UTF16ToString(s []uint16) string {
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for i, v := range s {
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if v == 0 {
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s = s[0:i]
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break
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}
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}
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return string(utf16.Decode(s))
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}
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// StringToUTF16Ptr is deprecated. Use UTF16PtrFromString instead.
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// If s contains a NUL byte this function panics instead of
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// returning an error.
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func StringToUTF16Ptr(s string) *uint16 { return &StringToUTF16(s)[0] }
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// UTF16PtrFromString returns pointer to the UTF-16 encoding of
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// the UTF-8 string s, with a terminating NUL added. If s
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// contains a NUL byte at any location, it returns (nil, syscall.EINVAL).
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func UTF16PtrFromString(s string) (*uint16, error) {
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a, err := UTF16FromString(s)
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if err != nil {
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return nil, err
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}
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return &a[0], nil
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}
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func Getpagesize() int { return 4096 }
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// NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
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// This is useful when interoperating with Windows code requiring callbacks.
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func NewCallback(fn interface{}) uintptr {
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return syscall.NewCallback(fn)
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}
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// NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention.
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// This is useful when interoperating with Windows code requiring callbacks.
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func NewCallbackCDecl(fn interface{}) uintptr {
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return syscall.NewCallbackCDecl(fn)
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}
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// windows api calls
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//sys GetLastError() (lasterr error)
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//sys LoadLibrary(libname string) (handle Handle, err error) = LoadLibraryW
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//sys LoadLibraryEx(libname string, zero Handle, flags uintptr) (handle Handle, err error) = LoadLibraryExW
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//sys FreeLibrary(handle Handle) (err error)
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//sys GetProcAddress(module Handle, procname string) (proc uintptr, err error)
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//sys GetVersion() (ver uint32, err error)
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//sys FormatMessage(flags uint32, msgsrc uintptr, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, err error) = FormatMessageW
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//sys ExitProcess(exitcode uint32)
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//sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile int32) (handle Handle, err error) [failretval==InvalidHandle] = CreateFileW
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//sys ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
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//sys WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (err error)
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//sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]
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//sys CloseHandle(handle Handle) (err error)
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//sys GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle]
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//sys SetStdHandle(stdhandle uint32, handle Handle) (err error)
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//sys findFirstFile1(name *uint16, data *win32finddata1) (handle Handle, err error) [failretval==InvalidHandle] = FindFirstFileW
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//sys findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW
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//sys FindClose(handle Handle) (err error)
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//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
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//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, err error) = GetCurrentDirectoryW
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//sys SetCurrentDirectory(path *uint16) (err error) = SetCurrentDirectoryW
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//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (err error) = CreateDirectoryW
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//sys RemoveDirectory(path *uint16) (err error) = RemoveDirectoryW
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//sys DeleteFile(path *uint16) (err error) = DeleteFileW
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//sys MoveFile(from *uint16, to *uint16) (err error) = MoveFileW
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//sys MoveFileEx(from *uint16, to *uint16, flags uint32) (err error) = MoveFileExW
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//sys GetComputerName(buf *uint16, n *uint32) (err error) = GetComputerNameW
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//sys GetComputerNameEx(nametype uint32, buf *uint16, n *uint32) (err error) = GetComputerNameExW
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//sys SetEndOfFile(handle Handle) (err error)
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//sys GetSystemTimeAsFileTime(time *Filetime)
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//sys GetSystemTimePreciseAsFileTime(time *Filetime)
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//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, err error) [failretval==0xffffffff]
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//sys CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uint32, threadcnt uint32) (handle Handle, err error)
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//sys GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uint32, overlapped **Overlapped, timeout uint32) (err error)
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//sys PostQueuedCompletionStatus(cphandle Handle, qty uint32, key uint32, overlapped *Overlapped) (err error)
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//sys CancelIo(s Handle) (err error)
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//sys CancelIoEx(s Handle, o *Overlapped) (err error)
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//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
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//sys OpenProcess(da uint32, inheritHandle bool, pid uint32) (handle Handle, err error)
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//sys TerminateProcess(handle Handle, exitcode uint32) (err error)
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//sys GetExitCodeProcess(handle Handle, exitcode *uint32) (err error)
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//sys GetStartupInfo(startupInfo *StartupInfo) (err error) = GetStartupInfoW
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//sys GetCurrentProcess() (pseudoHandle Handle, err error)
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//sys GetProcessTimes(handle Handle, creationTime *Filetime, exitTime *Filetime, kernelTime *Filetime, userTime *Filetime) (err error)
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//sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (err error)
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//sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff]
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//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, err error) = GetTempPathW
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//sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (err error)
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//sys GetFileType(filehandle Handle) (n uint32, err error)
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//sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (err error) = advapi32.CryptAcquireContextW
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//sys CryptReleaseContext(provhandle Handle, flags uint32) (err error) = advapi32.CryptReleaseContext
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//sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) = advapi32.CryptGenRandom
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//sys GetEnvironmentStrings() (envs *uint16, err error) [failretval==nil] = kernel32.GetEnvironmentStringsW
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//sys FreeEnvironmentStrings(envs *uint16) (err error) = kernel32.FreeEnvironmentStringsW
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//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, err error) = kernel32.GetEnvironmentVariableW
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//sys SetEnvironmentVariable(name *uint16, value *uint16) (err error) = kernel32.SetEnvironmentVariableW
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//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (err error)
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//sys GetFileAttributes(name *uint16) (attrs uint32, err error) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
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//sys SetFileAttributes(name *uint16, attrs uint32) (err error) = kernel32.SetFileAttributesW
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//sys GetFileAttributesEx(name *uint16, level uint32, info *byte) (err error) = kernel32.GetFileAttributesExW
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//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
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//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, err error) [failretval==nil] = shell32.CommandLineToArgvW
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//sys LocalFree(hmem Handle) (handle Handle, err error) [failretval!=0]
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//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (err error)
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//sys FlushFileBuffers(handle Handle) (err error)
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//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW
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//sys GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW
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//sys GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW
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//sys CreateFileMapping(fhandle Handle, sa *SecurityAttributes, prot uint32, maxSizeHigh uint32, maxSizeLow uint32, name *uint16) (handle Handle, err error) = kernel32.CreateFileMappingW
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//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, err error)
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//sys UnmapViewOfFile(addr uintptr) (err error)
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//sys FlushViewOfFile(addr uintptr, length uintptr) (err error)
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//sys VirtualLock(addr uintptr, length uintptr) (err error)
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//sys VirtualUnlock(addr uintptr, length uintptr) (err error)
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//sys VirtualAlloc(address uintptr, size uintptr, alloctype uint32, protect uint32) (value uintptr, err error) = kernel32.VirtualAlloc
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//sys VirtualFree(address uintptr, size uintptr, freetype uint32) (err error) = kernel32.VirtualFree
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//sys VirtualProtect(address uintptr, size uintptr, newprotect uint32, oldprotect *uint32) (err error) = kernel32.VirtualProtect
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//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (err error) = mswsock.TransmitFile
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//sys ReadDirectoryChanges(handle Handle, buf *byte, buflen uint32, watchSubTree bool, mask uint32, retlen *uint32, overlapped *Overlapped, completionRoutine uintptr) (err error) = kernel32.ReadDirectoryChangesW
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//sys CertOpenSystemStore(hprov Handle, name *uint16) (store Handle, err error) = crypt32.CertOpenSystemStoreW
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//sys CertOpenStore(storeProvider uintptr, msgAndCertEncodingType uint32, cryptProv uintptr, flags uint32, para uintptr) (handle Handle, err error) [failretval==InvalidHandle] = crypt32.CertOpenStore
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//sys CertEnumCertificatesInStore(store Handle, prevContext *CertContext) (context *CertContext, err error) [failretval==nil] = crypt32.CertEnumCertificatesInStore
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//sys CertAddCertificateContextToStore(store Handle, certContext *CertContext, addDisposition uint32, storeContext **CertContext) (err error) = crypt32.CertAddCertificateContextToStore
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//sys CertCloseStore(store Handle, flags uint32) (err error) = crypt32.CertCloseStore
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//sys CertGetCertificateChain(engine Handle, leaf *CertContext, time *Filetime, additionalStore Handle, para *CertChainPara, flags uint32, reserved uintptr, chainCtx **CertChainContext) (err error) = crypt32.CertGetCertificateChain
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//sys CertFreeCertificateChain(ctx *CertChainContext) = crypt32.CertFreeCertificateChain
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//sys CertCreateCertificateContext(certEncodingType uint32, certEncoded *byte, encodedLen uint32) (context *CertContext, err error) [failretval==nil] = crypt32.CertCreateCertificateContext
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//sys CertFreeCertificateContext(ctx *CertContext) (err error) = crypt32.CertFreeCertificateContext
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//sys CertVerifyCertificateChainPolicy(policyOID uintptr, chain *CertChainContext, para *CertChainPolicyPara, status *CertChainPolicyStatus) (err error) = crypt32.CertVerifyCertificateChainPolicy
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//sys RegOpenKeyEx(key Handle, subkey *uint16, options uint32, desiredAccess uint32, result *Handle) (regerrno error) = advapi32.RegOpenKeyExW
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//sys RegCloseKey(key Handle) (regerrno error) = advapi32.RegCloseKey
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//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
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//sys RegEnumKeyEx(key Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, class *uint16, classLen *uint32, lastWriteTime *Filetime) (regerrno error) = advapi32.RegEnumKeyExW
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//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW
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//sys getCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId
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//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode
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//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode
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//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo
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//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
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//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
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//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot
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//sys Process32First(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32FirstW
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//sys Process32Next(snapshot Handle, procEntry *ProcessEntry32) (err error) = kernel32.Process32NextW
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//sys DeviceIoControl(handle Handle, ioControlCode uint32, inBuffer *byte, inBufferSize uint32, outBuffer *byte, outBufferSize uint32, bytesReturned *uint32, overlapped *Overlapped) (err error)
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// This function returns 1 byte BOOLEAN rather than the 4 byte BOOL.
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//sys CreateSymbolicLink(symlinkfilename *uint16, targetfilename *uint16, flags uint32) (err error) [failretval&0xff==0] = CreateSymbolicLinkW
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//sys CreateHardLink(filename *uint16, existingfilename *uint16, reserved uintptr) (err error) [failretval&0xff==0] = CreateHardLinkW
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//sys GetCurrentThreadId() (id uint32)
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//sys CreateEvent(eventAttrs *SecurityAttributes, manualReset uint32, initialState uint32, name *uint16) (handle Handle, err error) = kernel32.CreateEventW
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//sys CreateEventEx(eventAttrs *SecurityAttributes, name *uint16, flags uint32, desiredAccess uint32) (handle Handle, err error) = kernel32.CreateEventExW
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//sys OpenEvent(desiredAccess uint32, inheritHandle bool, name *uint16) (handle Handle, err error) = kernel32.OpenEventW
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//sys SetEvent(event Handle) (err error) = kernel32.SetEvent
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//sys ResetEvent(event Handle) (err error) = kernel32.ResetEvent
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//sys PulseEvent(event Handle) (err error) = kernel32.PulseEvent
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// syscall interface implementation for other packages
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// GetProcAddressByOrdinal retrieves the address of the exported
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// function from module by ordinal.
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func GetProcAddressByOrdinal(module Handle, ordinal uintptr) (proc uintptr, err error) {
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r0, _, e1 := syscall.Syscall(procGetProcAddress.Addr(), 2, uintptr(module), ordinal, 0)
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proc = uintptr(r0)
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if proc == 0 {
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if e1 != 0 {
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err = errnoErr(e1)
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} else {
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err = syscall.EINVAL
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}
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}
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return
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}
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func Exit(code int) { ExitProcess(uint32(code)) }
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func makeInheritSa() *SecurityAttributes {
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var sa SecurityAttributes
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sa.Length = uint32(unsafe.Sizeof(sa))
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sa.InheritHandle = 1
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return &sa
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}
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func Open(path string, mode int, perm uint32) (fd Handle, err error) {
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if len(path) == 0 {
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return InvalidHandle, ERROR_FILE_NOT_FOUND
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}
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pathp, err := UTF16PtrFromString(path)
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if err != nil {
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return InvalidHandle, err
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}
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var access uint32
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switch mode & (O_RDONLY | O_WRONLY | O_RDWR) {
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case O_RDONLY:
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access = GENERIC_READ
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case O_WRONLY:
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access = GENERIC_WRITE
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case O_RDWR:
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access = GENERIC_READ | GENERIC_WRITE
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}
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if mode&O_CREAT != 0 {
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access |= GENERIC_WRITE
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}
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if mode&O_APPEND != 0 {
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access &^= GENERIC_WRITE
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access |= FILE_APPEND_DATA
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}
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sharemode := uint32(FILE_SHARE_READ | FILE_SHARE_WRITE)
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var sa *SecurityAttributes
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if mode&O_CLOEXEC == 0 {
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sa = makeInheritSa()
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}
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var createmode uint32
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switch {
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case mode&(O_CREAT|O_EXCL) == (O_CREAT | O_EXCL):
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createmode = CREATE_NEW
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case mode&(O_CREAT|O_TRUNC) == (O_CREAT | O_TRUNC):
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createmode = CREATE_ALWAYS
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case mode&O_CREAT == O_CREAT:
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createmode = OPEN_ALWAYS
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case mode&O_TRUNC == O_TRUNC:
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createmode = TRUNCATE_EXISTING
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default:
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createmode = OPEN_EXISTING
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}
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h, e := CreateFile(pathp, access, sharemode, sa, createmode, FILE_ATTRIBUTE_NORMAL, 0)
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return h, e
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}
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func Read(fd Handle, p []byte) (n int, err error) {
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var done uint32
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e := ReadFile(fd, p, &done, nil)
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if e != nil {
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if e == ERROR_BROKEN_PIPE {
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// NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin
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return 0, nil
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}
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return 0, e
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}
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if raceenabled {
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if done > 0 {
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raceWriteRange(unsafe.Pointer(&p[0]), int(done))
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}
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raceAcquire(unsafe.Pointer(&ioSync))
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}
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return int(done), nil
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}
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func Write(fd Handle, p []byte) (n int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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var done uint32
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e := WriteFile(fd, p, &done, nil)
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if e != nil {
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return 0, e
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}
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if raceenabled && done > 0 {
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raceReadRange(unsafe.Pointer(&p[0]), int(done))
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}
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return int(done), nil
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}
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var ioSync int64
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func Seek(fd Handle, offset int64, whence int) (newoffset int64, err error) {
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var w uint32
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switch whence {
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case 0:
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w = FILE_BEGIN
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case 1:
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w = FILE_CURRENT
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case 2:
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w = FILE_END
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}
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hi := int32(offset >> 32)
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lo := int32(offset)
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// use GetFileType to check pipe, pipe can't do seek
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ft, _ := GetFileType(fd)
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if ft == FILE_TYPE_PIPE {
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return 0, syscall.EPIPE
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}
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rlo, e := SetFilePointer(fd, lo, &hi, w)
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if e != nil {
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return 0, e
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}
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return int64(hi)<<32 + int64(rlo), nil
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}
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func Close(fd Handle) (err error) {
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return CloseHandle(fd)
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}
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var (
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Stdin = getStdHandle(STD_INPUT_HANDLE)
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Stdout = getStdHandle(STD_OUTPUT_HANDLE)
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Stderr = getStdHandle(STD_ERROR_HANDLE)
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)
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func getStdHandle(stdhandle uint32) (fd Handle) {
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r, _ := GetStdHandle(stdhandle)
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CloseOnExec(r)
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return r
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}
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const ImplementsGetwd = true
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func Getwd() (wd string, err error) {
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b := make([]uint16, 300)
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n, e := GetCurrentDirectory(uint32(len(b)), &b[0])
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if e != nil {
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return "", e
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}
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return string(utf16.Decode(b[0:n])), nil
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}
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func Chdir(path string) (err error) {
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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 LoadGetSystemTimePreciseAsFileTime() error {
|
|
return procGetSystemTimePreciseAsFileTime.Find()
|
|
}
|
|
|
|
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
|
|
}
|