TUN-1734: Pin packages at exact versions

vendor/golang.org/x/sys/windows/syscall_windows.go

@@ -112,12 +112,14 @@ func Getpagesize() int { return 4096 }
 
 // NewCallback converts a Go function to a function pointer conforming to the stdcall calling convention.
 // This is useful when interoperating with Windows code requiring callbacks.
+// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
 func NewCallback(fn interface{}) uintptr {
 	return syscall.NewCallback(fn)
 }
 
 // NewCallbackCDecl converts a Go function to a function pointer conforming to the cdecl calling convention.
 // This is useful when interoperating with Windows code requiring callbacks.
+// The argument is expected to be a function with with one uintptr-sized result. The function must not have arguments with size larger than the size of uintptr.
 func NewCallbackCDecl(fn interface{}) uintptr {
 	return syscall.NewCallbackCDecl(fn)
 }
@@ -135,6 +137,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //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	GetOverlappedResult(handle Handle, overlapped *Overlapped, done *uint32, wait bool) (err error)
 //sys	SetFilePointer(handle Handle, lowoffset int32, highoffsetptr *int32, whence uint32) (newlowoffset uint32, err error) [failretval==0xffffffff]
 //sys	CloseHandle(handle Handle) (err error)
 //sys	GetStdHandle(stdhandle uint32) (handle Handle, err error) [failretval==InvalidHandle]
@@ -143,6 +146,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //sys	findNextFile1(handle Handle, data *win32finddata1) (err error) = FindNextFileW
 //sys	FindClose(handle Handle) (err error)
 //sys	GetFileInformationByHandle(handle Handle, data *ByHandleFileInformation) (err error)
+//sys	GetFileInformationByHandleEx(handle Handle, class uint32, outBuffer *byte, outBufferLen uint32) (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
@@ -170,6 +174,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
 //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	waitForMultipleObjects(count uint32, handles uintptr, waitAll bool, waitMilliseconds uint32) (event uint32, err error) [failretval==0xffffffff] = WaitForMultipleObjects
 //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)
@@ -587,6 +592,18 @@ func LoadSetFileCompletionNotificationModes() error {
 	return procSetFileCompletionNotificationModes.Find()
 }
 
+func WaitForMultipleObjects(handles []Handle, waitAll bool, waitMilliseconds uint32) (event uint32, err error) {
+	// Every other win32 array API takes arguments as "pointer, count", except for this function. So we
+	// can't declare it as a usual [] type, because mksyscall will use the opposite order. We therefore
+	// trivially stub this ourselves.
+
+	var handlePtr *Handle
+	if len(handles) > 0 {
+		handlePtr = &handles[0]
+	}
+	return waitForMultipleObjects(uint32(len(handles)), uintptr(unsafe.Pointer(handlePtr)), waitAll, waitMilliseconds)
+}
+
 // net api calls
 
 const socket_error = uintptr(^uint32(0))
@@ -653,7 +670,7 @@ type RawSockaddr struct {
 
 type RawSockaddrAny struct {
 	Addr RawSockaddr
-	Pad  [96]int8
+	Pad  [100]int8
 }
 
 type Sockaddr interface {
@@ -702,19 +719,69 @@ func (sa *SockaddrInet6) sockaddr() (unsafe.Pointer, int32, error) {
 	return unsafe.Pointer(&sa.raw), int32(unsafe.Sizeof(sa.raw)), nil
 }
 
+type RawSockaddrUnix struct {
+	Family uint16
+	Path   [UNIX_PATH_MAX]int8
+}
+
 type SockaddrUnix struct {
 	Name string
+	raw  RawSockaddrUnix
 }
 
 func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, int32, error) {
-	// TODO(brainman): implement SockaddrUnix.sockaddr()
-	return nil, 0, syscall.EWINDOWS
+	name := sa.Name
+	n := len(name)
+	if n > len(sa.raw.Path) {
+		return nil, 0, syscall.EINVAL
+	}
+	if n == len(sa.raw.Path) && name[0] != '@' {
+		return nil, 0, syscall.EINVAL
+	}
+	sa.raw.Family = AF_UNIX
+	for i := 0; i < n; i++ {
+		sa.raw.Path[i] = int8(name[i])
+	}
+	// length is family (uint16), name, NUL.
+	sl := int32(2)
+	if n > 0 {
+		sl += int32(n) + 1
+	}
+	if sa.raw.Path[0] == '@' {
+		sa.raw.Path[0] = 0
+		// Don't count trailing NUL for abstract address.
+		sl--
+	}
+
+	return unsafe.Pointer(&sa.raw), sl, nil
 }
 
 func (rsa *RawSockaddrAny) Sockaddr() (Sockaddr, error) {
 	switch rsa.Addr.Family {
 	case AF_UNIX:
-		return nil, syscall.EWINDOWS
+		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))
+		sa := new(SockaddrUnix)
+		if pp.Path[0] == 0 {
+			// "Abstract" Unix domain socket.
+			// Rewrite leading NUL as @ for textual display.
+			// (This is the standard convention.)
+			// Not friendly to overwrite in place,
+			// but the callers below don't care.
+			pp.Path[0] = '@'
+		}
+
+		// Assume path ends at NUL.
+		// This is not technically the Linux semantics for
+		// abstract Unix domain sockets--they are supposed
+		// to be uninterpreted fixed-size binary blobs--but
+		// everyone uses this convention.
+		n := 0
+		for n < len(pp.Path) && pp.Path[n] != 0 {
+			n++
+		}
+		bytes := (*[10000]byte)(unsafe.Pointer(&pp.Path[0]))[0:n]
+		sa.Name = string(bytes)
+		return sa, nil
 
 	case AF_INET:
 		pp := (*RawSockaddrInet4)(unsafe.Pointer(rsa))