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path: root/src/pkg/syscall/syscall_windows.go
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-rw-r--r--src/pkg/syscall/syscall_windows.go770
1 files changed, 770 insertions, 0 deletions
diff --git a/src/pkg/syscall/syscall_windows.go b/src/pkg/syscall/syscall_windows.go
new file mode 100644
index 000000000..19c6587f5
--- /dev/null
+++ b/src/pkg/syscall/syscall_windows.go
@@ -0,0 +1,770 @@
+// 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 (
+ "sync"
+ "unsafe"
+ "utf16"
+)
+
+const OS = "windows"
+
+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 int) {
+ panic(funcname + " failed: " + syscall.Errstr(err))
+}
+
+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 != 0 {
+ abort("LoadLibrary", err)
+ }
+ defer syscall.FreeLibrary(h)
+ proc, err := syscall.GetProcAddress(h, "GetVersion")
+ if err != 0 {
+ 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([]int(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] }
+
+// dll helpers
+
+// Implemented in ../runtime/windows/syscall.goc
+func Syscall(trap, nargs, a1, a2, a3 uintptr) (r1, r2, err uintptr)
+func Syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+func Syscall9(trap, nargs, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr)
+func Syscall12(trap, nargs, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12 uintptr) (r1, r2, err uintptr)
+func loadlibraryex(filename uintptr) (handle uintptr)
+func getprocaddress(handle uintptr, procname uintptr) (proc uintptr)
+
+// A LazyDLL implements access to a single DLL.
+// It will delay the load of the DLL until the first
+// call to its Handle method or to one of its
+// LazyProc's Addr method.
+type LazyDLL struct {
+ mu sync.Mutex
+ Name string
+ h uintptr // module handle once dll is loaded
+}
+
+// Handle returns d's module handle.
+func (d *LazyDLL) Handle() uintptr {
+ if d.h == 0 {
+ d.mu.Lock()
+ defer d.mu.Unlock()
+ if d.h == 0 {
+ d.h = loadlibraryex(uintptr(unsafe.Pointer(StringBytePtr(d.Name))))
+ if d.h == 0 {
+ panic("syscall: could not LoadLibraryEx " + d.Name)
+ }
+ }
+ }
+ return d.h
+}
+
+// NewProc returns a LazyProc for accessing the named procedure in the DLL d.
+func (d *LazyDLL) NewProc(name string) *LazyProc {
+ return &LazyProc{dll: d, Name: name}
+}
+
+// NewLazyDLL creates new LazyDLL associated with dll file.
+func NewLazyDLL(name string) *LazyDLL {
+ return &LazyDLL{Name: name}
+}
+
+// A LazyProc implements access to a procedure inside a LazyDLL.
+// It delays the lookup until the Addr method is called.
+type LazyProc struct {
+ mu sync.Mutex
+ Name string
+ dll *LazyDLL
+ addr uintptr
+}
+
+// Addr returns the address of the procedure represented by s.
+// The return value can be passed to Syscall to run the procedure.
+func (s *LazyProc) Addr() uintptr {
+ if s.addr == 0 {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+ if s.addr == 0 {
+ s.addr = getprocaddress(s.dll.Handle(), uintptr(unsafe.Pointer(StringBytePtr(s.Name))))
+ if s.addr == 0 {
+ panic("syscall: could not GetProcAddress for " + s.Name)
+ }
+ }
+ }
+ return s.addr
+}
+
+func Getpagesize() int { return 4096 }
+
+// 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() (lasterrno int)
+//sys LoadLibrary(libname string) (handle Handle, errno int) = LoadLibraryW
+//sys FreeLibrary(handle Handle) (errno int)
+//sys GetProcAddress(module Handle, procname string) (proc Handle, errno int)
+//sys GetVersion() (ver uint32, errno int)
+//sys FormatMessage(flags uint32, msgsrc uint32, msgid uint32, langid uint32, buf []uint16, args *byte) (n uint32, errno int) = FormatMessageW
+//sys ExitProcess(exitcode uint32)
+//sys CreateFile(name *uint16, access uint32, mode uint32, sa *SecurityAttributes, createmode uint32, attrs uint32, templatefile int32) (handle Handle, errno int) [failretval==InvalidHandle] = CreateFileW
+//sys ReadFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (errno int)
+//sys WriteFile(handle Handle, buf []byte, done *uint32, overlapped *Overlapped) (errno int)
+//sys SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, errno int) [failretval==0xffffffff]
+//sys CloseHandle(handle Handle) (errno int)
+//sys GetStdHandle(stdhandle int) (handle Handle, errno int) [failretval==InvalidHandle]
+//sys FindFirstFile(name *uint16, data *Win32finddata) (handle Handle, errno int) [failretval==InvalidHandle] = FindFirstFileW
+//sys FindNextFile(handle Handle, data *Win32finddata) (errno int) = FindNextFileW
+//sys FindClose(handle Handle) (errno int)
+//sys GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (errno int)
+//sys GetCurrentDirectory(buflen uint32, buf *uint16) (n uint32, errno int) = GetCurrentDirectoryW
+//sys SetCurrentDirectory(path *uint16) (errno int) = SetCurrentDirectoryW
+//sys CreateDirectory(path *uint16, sa *SecurityAttributes) (errno int) = CreateDirectoryW
+//sys RemoveDirectory(path *uint16) (errno int) = RemoveDirectoryW
+//sys DeleteFile(path *uint16) (errno int) = DeleteFileW
+//sys MoveFile(from *uint16, to *uint16) (errno int) = MoveFileW
+//sys GetComputerName(buf *uint16, n *uint32) (errno int) = GetComputerNameW
+//sys SetEndOfFile(handle Handle) (errno int)
+//sys GetSystemTimeAsFileTime(time *Filetime)
+//sys sleep(msec uint32) = Sleep
+//sys GetTimeZoneInformation(tzi *Timezoneinformation) (rc uint32, errno int) [failretval==0xffffffff]
+//sys CreateIoCompletionPort(filehandle Handle, cphandle Handle, key uint32, threadcnt uint32) (handle Handle, errno int)
+//sys GetQueuedCompletionStatus(cphandle Handle, qty *uint32, key *uint32, overlapped **Overlapped, timeout uint32) (errno int)
+//sys CancelIo(s Handle) (errno int)
+//sys CreateProcess(appName *uint16, commandLine *uint16, procSecurity *SecurityAttributes, threadSecurity *SecurityAttributes, inheritHandles bool, creationFlags uint32, env *uint16, currentDir *uint16, startupInfo *StartupInfo, outProcInfo *ProcessInformation) (errno int) = CreateProcessW
+//sys OpenProcess(da uint32, inheritHandle bool, pid uint32) (handle Handle, errno int)
+//sys TerminateProcess(handle Handle, exitcode uint32) (errno int)
+//sys GetExitCodeProcess(handle Handle, exitcode *uint32) (errno int)
+//sys GetStartupInfo(startupInfo *StartupInfo) (errno int) = GetStartupInfoW
+//sys GetCurrentProcess() (pseudoHandle Handle, errno int)
+//sys DuplicateHandle(hSourceProcessHandle Handle, hSourceHandle Handle, hTargetProcessHandle Handle, lpTargetHandle *Handle, dwDesiredAccess uint32, bInheritHandle bool, dwOptions uint32) (errno int)
+//sys WaitForSingleObject(handle Handle, waitMilliseconds uint32) (event uint32, errno int) [failretval==0xffffffff]
+//sys GetTempPath(buflen uint32, buf *uint16) (n uint32, errno int) = GetTempPathW
+//sys CreatePipe(readhandle *Handle, writehandle *Handle, sa *SecurityAttributes, size uint32) (errno int)
+//sys GetFileType(filehandle Handle) (n uint32, errno int)
+//sys CryptAcquireContext(provhandle *Handle, container *uint16, provider *uint16, provtype uint32, flags uint32) (errno int) = advapi32.CryptAcquireContextW
+//sys CryptReleaseContext(provhandle Handle, flags uint32) (errno int) = advapi32.CryptReleaseContext
+//sys CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (errno int) = advapi32.CryptGenRandom
+//sys GetEnvironmentStrings() (envs *uint16, errno int) [failretval==nil] = kernel32.GetEnvironmentStringsW
+//sys FreeEnvironmentStrings(envs *uint16) (errno int) = kernel32.FreeEnvironmentStringsW
+//sys GetEnvironmentVariable(name *uint16, buffer *uint16, size uint32) (n uint32, errno int) = kernel32.GetEnvironmentVariableW
+//sys SetEnvironmentVariable(name *uint16, value *uint16) (errno int) = kernel32.SetEnvironmentVariableW
+//sys SetFileTime(handle Handle, ctime *Filetime, atime *Filetime, wtime *Filetime) (errno int)
+//sys GetFileAttributes(name *uint16) (attrs uint32, errno int) [failretval==INVALID_FILE_ATTRIBUTES] = kernel32.GetFileAttributesW
+//sys SetFileAttributes(name *uint16, attrs uint32) (errno int) = kernel32.SetFileAttributesW
+//sys GetCommandLine() (cmd *uint16) = kernel32.GetCommandLineW
+//sys CommandLineToArgv(cmd *uint16, argc *int32) (argv *[8192]*[8192]uint16, errno int) [failretval==nil] = shell32.CommandLineToArgvW
+//sys LocalFree(hmem Handle) (handle Handle, errno int) [failretval!=0]
+//sys SetHandleInformation(handle Handle, mask uint32, flags uint32) (errno int)
+//sys FlushFileBuffers(handle Handle) (errno int)
+//sys GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, errno int) = kernel32.GetFullPathNameW
+//sys CreateFileMapping(fhandle Handle, sa *SecurityAttributes, prot uint32, maxSizeHigh uint32, maxSizeLow uint32, name *uint16) (handle Handle, errno int) = kernel32.CreateFileMappingW
+//sys MapViewOfFile(handle Handle, access uint32, offsetHigh uint32, offsetLow uint32, length uintptr) (addr uintptr, errno int)
+//sys UnmapViewOfFile(addr uintptr) (errno int)
+//sys FlushViewOfFile(addr uintptr, length uintptr) (errno int)
+//sys VirtualLock(addr uintptr, length uintptr) (errno int)
+//sys VirtualUnlock(addr uintptr, length uintptr) (errno int)
+//sys TransmitFile(s Handle, handle Handle, bytesToWrite uint32, bytsPerSend uint32, overlapped *Overlapped, transmitFileBuf *TransmitFileBuffers, flags uint32) (errno int) = wsock32.TransmitFile
+
+// syscall interface implementation for other packages
+
+func Errstr(errno int) string {
+ // deal with special go errors
+ e := errno - APPLICATION_ERROR
+ if 0 <= e && e < len(errors) {
+ return errors[e]
+ }
+ // 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(errno), 0, b, nil)
+ if err != 0 {
+ return "error " + itoa(errno) + " (FormatMessage failed with err=" + itoa(err) + ")"
+ }
+ // trim terminating \r and \n
+ for ; n > 0 && (b[n-1] == '\n' || b[n-1] == '\r'); n-- {
+ }
+ return string(utf16.Decode(b[:n]))
+}
+
+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, errno int) {
+ 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, int(e)
+}
+
+func Read(fd Handle, p []byte) (n int, errno int) {
+ var done uint32
+ e := ReadFile(fd, p, &done, nil)
+ if e != 0 {
+ if e == ERROR_BROKEN_PIPE {
+ // NOTE(brainman): work around ERROR_BROKEN_PIPE is returned on reading EOF from stdin
+ return 0, 0
+ }
+ return 0, e
+ }
+ return int(done), 0
+}
+
+func Write(fd Handle, p []byte) (n int, errno int) {
+ var done uint32
+ e := WriteFile(fd, p, &done, nil)
+ if e != 0 {
+ return 0, e
+ }
+ return int(done), 0
+}
+
+func Seek(fd Handle, offset int64, whence int) (newoffset int64, errno int) {
+ 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 != 0 {
+ return 0, e
+ }
+ return int64(hi)<<32 + int64(rlo), 0
+}
+
+func Close(fd Handle) (errno int) {
+ 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)
+ return r
+}
+
+func Stat(path string, stat *Stat_t) (errno int) {
+ if len(path) == 0 {
+ return ERROR_PATH_NOT_FOUND
+ }
+ // Remove trailing slash.
+ if path[len(path)-1] == '/' || path[len(path)-1] == '\\' {
+ // Check if we're given root directory ("\" or "c:\").
+ if len(path) == 1 || (len(path) == 3 && path[1] == ':') {
+ // TODO(brainman): Perhaps should fetch other fields, not just FileAttributes.
+ stat.Windata = Win32finddata{}
+ a, e := GetFileAttributes(StringToUTF16Ptr(path))
+ if e != 0 {
+ return e
+ }
+ stat.Windata.FileAttributes = a
+ return 0
+ }
+ path = path[:len(path)-1]
+ }
+ h, e := FindFirstFile(StringToUTF16Ptr(path), &stat.Windata)
+ if e != 0 {
+ return e
+ }
+ defer FindClose(h)
+ stat.Mode = 0
+ return 0
+}
+
+func Lstat(path string, stat *Stat_t) (errno int) {
+ // no links on windows, just call Stat
+ return Stat(path, stat)
+}
+
+const ImplementsGetwd = true
+
+func Getwd() (wd string, errno int) {
+ b := make([]uint16, 300)
+ n, e := GetCurrentDirectory(uint32(len(b)), &b[0])
+ if e != 0 {
+ return "", e
+ }
+ return string(utf16.Decode(b[0:n])), 0
+}
+
+func Chdir(path string) (errno int) {
+ return SetCurrentDirectory(&StringToUTF16(path)[0])
+}
+
+func Mkdir(path string, mode uint32) (errno int) {
+ return CreateDirectory(&StringToUTF16(path)[0], nil)
+}
+
+func Rmdir(path string) (errno int) {
+ return RemoveDirectory(&StringToUTF16(path)[0])
+}
+
+func Unlink(path string) (errno int) {
+ return DeleteFile(&StringToUTF16(path)[0])
+}
+
+func Rename(oldpath, newpath string) (errno int) {
+ from := &StringToUTF16(oldpath)[0]
+ to := &StringToUTF16(newpath)[0]
+ return MoveFile(from, to)
+}
+
+func ComputerName() (name string, errno int) {
+ var n uint32 = MAX_COMPUTERNAME_LENGTH + 1
+ b := make([]uint16, n)
+ e := GetComputerName(&b[0], &n)
+ if e != 0 {
+ return "", e
+ }
+ return string(utf16.Decode(b[0:n])), 0
+}
+
+func Ftruncate(fd Handle, length int64) (errno int) {
+ curoffset, e := Seek(fd, 0, 1)
+ if e != 0 {
+ return e
+ }
+ defer Seek(fd, curoffset, 0)
+ _, e = Seek(fd, length, 0)
+ if e != 0 {
+ return e
+ }
+ e = SetEndOfFile(fd)
+ if e != 0 {
+ return e
+ }
+ return 0
+}
+
+func Gettimeofday(tv *Timeval) (errno int) {
+ var ft Filetime
+ GetSystemTimeAsFileTime(&ft)
+ *tv = NsecToTimeval(ft.Nanoseconds())
+ return 0
+}
+
+func Sleep(nsec int64) (errno int) {
+ sleep(uint32((nsec + 1e6 - 1) / 1e6)) // round up to milliseconds
+ return 0
+}
+
+func Pipe(p []Handle) (errno int) {
+ if len(p) != 2 {
+ return EINVAL
+ }
+ var r, w Handle
+ e := CreatePipe(&r, &w, makeInheritSa(), 0)
+ if e != 0 {
+ return e
+ }
+ p[0] = r
+ p[1] = w
+ return 0
+}
+
+func Utimes(path string, tv []Timeval) (errno int) {
+ 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 != 0 {
+ 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) (errno int) {
+ return FlushFileBuffers(fd)
+}
+
+func Chmod(path string, mode uint32) (errno int) {
+ if mode == 0 {
+ return EINVAL
+ }
+ p := StringToUTF16Ptr(path)
+ attrs, e := GetFileAttributes(p)
+ if e != 0 {
+ 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) (sockerrno int) = wsock32.WSAStartup
+//sys WSACleanup() (errno int) [failretval==-1] = wsock32.WSACleanup
+//sys WSAIoctl(s Handle, iocc uint32, inbuf *byte, cbif uint32, outbuf *byte, cbob uint32, cbbr *uint32, overlapped *Overlapped, completionRoutine uintptr) (errno int) [failretval==-1] = ws2_32.WSAIoctl
+//sys socket(af int32, typ int32, protocol int32) (handle Handle, errno int) [failretval==InvalidHandle] = wsock32.socket
+//sys Setsockopt(s Handle, level int32, optname int32, optval *byte, optlen int32) (errno int) [failretval==-1] = wsock32.setsockopt
+//sys bind(s Handle, name uintptr, namelen int32) (errno int) [failretval==-1] = wsock32.bind
+//sys connect(s Handle, name uintptr, namelen int32) (errno int) [failretval==-1] = wsock32.connect
+//sys getsockname(s Handle, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval==-1] = wsock32.getsockname
+//sys getpeername(s Handle, rsa *RawSockaddrAny, addrlen *int32) (errno int) [failretval==-1] = wsock32.getpeername
+//sys listen(s Handle, backlog int32) (errno int) [failretval==-1] = wsock32.listen
+//sys shutdown(s Handle, how int32) (errno int) [failretval==-1] = wsock32.shutdown
+//sys Closesocket(s Handle) (errno int) [failretval==-1] = wsock32.closesocket
+//sys AcceptEx(ls Handle, as Handle, buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, recvd *uint32, overlapped *Overlapped) (errno int) = wsock32.AcceptEx
+//sys GetAcceptExSockaddrs(buf *byte, rxdatalen uint32, laddrlen uint32, raddrlen uint32, lrsa **RawSockaddrAny, lrsalen *int32, rrsa **RawSockaddrAny, rrsalen *int32) = wsock32.GetAcceptExSockaddrs
+//sys WSARecv(s Handle, bufs *WSABuf, bufcnt uint32, recvd *uint32, flags *uint32, overlapped *Overlapped, croutine *byte) (errno int) [failretval==-1] = ws2_32.WSARecv
+//sys WSASend(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, overlapped *Overlapped, croutine *byte) (errno int) [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) (errno int) [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) (errno int) [failretval==-1] = ws2_32.WSASendTo
+//sys GetHostByName(name string) (h *Hostent, errno int) [failretval==nil] = ws2_32.gethostbyname
+//sys GetServByName(name string, proto string) (s *Servent, errno int) [failretval==nil] = ws2_32.getservbyname
+//sys Ntohs(netshort uint16) (u uint16) = ws2_32.ntohs
+//sys DnsQuery(name string, qtype uint16, options uint32, extra *byte, qrs **DNSRecord, pr *byte) (status uint32) = dnsapi.DnsQuery_W
+//sys DnsRecordListFree(rl *DNSRecord, freetype uint32) = dnsapi.DnsRecordListFree
+//sys GetIfEntry(pIfRow *MibIfRow) (errcode int) = iphlpapi.GetIfEntry
+//sys GetAdaptersInfo(ai *IpAdapterInfo, ol *uint32) (errcode int) = 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, errno int) // lowercase; only we can define Sockaddrs
+}
+
+type SockaddrInet4 struct {
+ Port int
+ Addr [4]byte
+ raw RawSockaddrInet4
+}
+
+func (sa *SockaddrInet4) sockaddr() (uintptr, int32, int) {
+ 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)), 0
+}
+
+type SockaddrInet6 struct {
+ Port int
+ ZoneId uint32
+ Addr [16]byte
+}
+
+func (sa *SockaddrInet6) sockaddr() (uintptr, int32, int) {
+ // TODO(brainman): implement SockaddrInet6.sockaddr()
+ return 0, 0, EWINDOWS
+}
+
+type SockaddrUnix struct {
+ Name string
+}
+
+func (sa *SockaddrUnix) sockaddr() (uintptr, int32, int) {
+ // TODO(brainman): implement SockaddrUnix.sockaddr()
+ return 0, 0, EWINDOWS
+}
+
+func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, int) {
+ 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, 0
+
+ case AF_INET6:
+ return nil, EWINDOWS
+ }
+ return nil, EAFNOSUPPORT
+}
+
+func Socket(domain, typ, proto int) (fd Handle, errno int) {
+ if domain == AF_INET6 && SocketDisableIPv6 {
+ return InvalidHandle, EAFNOSUPPORT
+ }
+ h, e := socket(int32(domain), int32(typ), int32(proto))
+ return h, int(e)
+}
+
+func SetsockoptInt(fd Handle, level, opt int, value int) (errno int) {
+ v := int32(value)
+ return int(Setsockopt(fd, int32(level), int32(opt), (*byte)(unsafe.Pointer(&v)), int32(unsafe.Sizeof(v))))
+}
+
+func Bind(fd Handle, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return bind(fd, ptr, n)
+}
+
+func Connect(fd Handle, sa Sockaddr) (errno int) {
+ ptr, n, err := sa.sockaddr()
+ if err != 0 {
+ return err
+ }
+ return connect(fd, ptr, n)
+}
+
+func Getsockname(fd Handle) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ l := int32(unsafe.Sizeof(rsa))
+ if errno = getsockname(fd, &rsa, &l); errno != 0 {
+ return
+ }
+ return rsa.Sockaddr()
+}
+
+func Getpeername(fd Handle) (sa Sockaddr, errno int) {
+ var rsa RawSockaddrAny
+ l := int32(unsafe.Sizeof(rsa))
+ if errno = getpeername(fd, &rsa, &l); errno != 0 {
+ return
+ }
+ return rsa.Sockaddr()
+}
+
+func Listen(s Handle, n int) (errno int) {
+ return int(listen(s, int32(n)))
+}
+
+func Shutdown(fd Handle, how int) (errno int) {
+ return int(shutdown(fd, int32(how)))
+}
+
+func WSASendto(s Handle, bufs *WSABuf, bufcnt uint32, sent *uint32, flags uint32, to Sockaddr, overlapped *Overlapped, croutine *byte) (errno int) {
+ rsa, l, err := to.sockaddr()
+ if err != 0 {
+ return err
+ }
+ errno = WSASendTo(s, bufs, bufcnt, sent, flags, (*RawSockaddrAny)(unsafe.Pointer(rsa)), l, overlapped, croutine)
+ return
+}
+
+// Invented structures to support what package os expects.
+type Rusage struct{}
+
+type WaitStatus struct {
+ Status uint32
+ ExitCode uint32
+}
+
+func (w WaitStatus) Exited() bool { return true }
+
+func (w WaitStatus) ExitStatus() int { return int(w.ExitCode) }
+
+func (w WaitStatus) Signal() int { 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() int { return -1 }
+
+func (w WaitStatus) Signaled() bool { return false }
+
+func (w WaitStatus) TrapCause() int { return -1 }
+
+// TODO(brainman): fix all needed for net
+
+func Accept(fd Handle) (nfd Handle, sa Sockaddr, errno int) { return 0, nil, EWINDOWS }
+func Recvfrom(fd Handle, p []byte, flags int) (n int, from Sockaddr, errno int) {
+ return 0, nil, EWINDOWS
+}
+func Sendto(fd Handle, p []byte, flags int, to Sockaddr) (errno int) { return EWINDOWS }
+func SetsockoptTimeval(fd Handle, level, opt int, tv *Timeval) (errno int) { return EWINDOWS }
+
+type Linger struct {
+ Onoff int32
+ Linger int32
+}
+
+const (
+ IP_ADD_MEMBERSHIP = iota
+ IP_DROP_MEMBERSHIP
+)
+
+type IPMreq struct {
+ Multiaddr [4]byte /* in_addr */
+ Interface [4]byte /* in_addr */
+}
+
+type IPv6Mreq struct {
+ Multiaddr [16]byte /* in6_addr */
+ Interface uint32
+}
+
+func SetsockoptLinger(fd Handle, level, opt int, l *Linger) (errno int) { return EWINDOWS }
+func SetsockoptIPMreq(fd Handle, level, opt int, mreq *IPMreq) (errno int) { return EWINDOWS }
+func SetsockoptIPv6Mreq(fd Handle, level, opt int, mreq *IPv6Mreq) (errno int) { return EWINDOWS }
+func BindToDevice(fd Handle, device string) (errno int) { 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) (errno int) { return EWINDOWS }
+func Link(oldpath, newpath string) (errno int) { return EWINDOWS }
+func Symlink(path, link string) (errno int) { return EWINDOWS }
+func Readlink(path string, buf []byte) (n int, errno int) { return 0, EWINDOWS }
+
+func Fchmod(fd Handle, mode uint32) (errno int) { return EWINDOWS }
+func Chown(path string, uid int, gid int) (errno int) { return EWINDOWS }
+func Lchown(path string, uid int, gid int) (errno int) { return EWINDOWS }
+func Fchown(fd Handle, uid int, gid int) (errno int) { 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, errno int) { return nil, EWINDOWS }
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-27 02:17:59 +0000