if err != nil {
		return nil, err
	}
	defer windows.DestroyEnvironmentBlock(blockp)

	const size = unsafe.Sizeof(*blockp)
	for *blockp != 0 { // environment block ends with empty string
		// find NUL terminator
		end := unsafe.Add(unsafe.Pointer(blockp), size)
		for *(*uint16)(end) != 0 {
			end = unsafe.Add(end, size)
		}

		entry := unsafe.Slice(blockp, (uintptr(end)-uintptr(unsafe.Pointer(blockp)))/2)

//
//	 Source		Encoding			Maximum length of single name entry
//	 Unicast DNS		ASCII or			<=253 + a NUL terminator
//				Unicode in RFC 5892		252 * total number of labels + delimiters + a NUL terminator
//	 Multicast DNS	UTF-8 in RFC 5198 or		<=253 + a NUL terminator
//				the same as unicast DNS ASCII	<=253 + a NUL terminator
//	 Local database	various				depends on implementation
const (
	nameinfoLen    = 64

          data.ranges.escapeDataString(),
          data.mappings.escapeDataString(),
        )
        .build(),
    )
    .build()
}

/**
 * KotlinPoet doesn't really know what to do with a string containing NUL, BEL, DEL, etc. We also
 * don't want to perform `trimMargin()` at runtime.
 */
fun String.escapeDataString(): String {
  return buildString {
    for (codePoint in ******@****.***ints()) {

	{"a/../a", true},
	{"a/", true},
	{"a/.", true},
	{"a/./b/./c", true},
	{`a/../b:/../../c`, false},
}

var winislocaltests = []IsLocalTest{
	{"NUL", false},
	{"nul", false},
	{"nul ", false},
	{"nul.", false},
	{"a/nul:", false},
	{"a/nul : a", false},
	{"com0", true},
	{"com1", false},
	{"com2", false},
	{"com3", false},
	{"com4", false},
	{"com5", false},
	{"com6", false},

// command lines are passed around.
// DecomposeCommandLine returns an error if commandLine contains NUL.
func DecomposeCommandLine(commandLine string) ([]string, error) {
	if len(commandLine) == 0 {
		return []string{}, nil
	}
	utf16CommandLine, err := UTF16FromString(commandLine)
	if err != nil {
		return nil, errorspkg.New("string with NUL passed to DecomposeCommandLine")
	}
	var argc int32

	}
}

// Test that errors in gob shut down the connection. Issue 7689.

type R struct {
	msg []byte // Not exported, so R does not work with gob.
}

type S struct{}

func (s *S) Recv(nul *struct{}, reply *R) error {
	*reply = R{[]byte("foo")}
	return nil
}

func TestGobError(t *testing.T) {
	defer func() {
		err := recover()
		if err == nil {
			t.Fatal("no error")
		}

		{
			// Filter out entries containing NULs.
			in:      []string{"A=a\x00b", "B=b", "C\x00C=c"},
			want:    []string{"B=b"},
			wantErr: true,
		},
		{
			// Plan 9 needs to preserve environment variables with NUL (#56544).
			nulOK: true,
			in:    []string{"path=one\x00two"},
			want:  []string{"path=one\x00two"},
		},
	}
	for _, tt := range tests {
		got, err := dedupEnvCase(tt.noCase, tt.nulOK, tt.in)

	// __LINKEDIT                  103b00000-103c98000    [ 1632K  1616K     0K     0K] r--/r-SM=COW          /Users/USER/*/gopls
	// dyld private memory         103cd8000-103cdc000    [   16K     0K     0K     0K] ---/--SM=NUL
	// shared memory               103ce4000-103ce8000    [   16K    16K    16K     0K] r--/r-SM=SHM

	for _, test := range []struct {
		path string
		want string
	}{
		{`C:\foo`, `C:\foo`},
		{`\\host\share\foo`, `\\host\share\foo`},
		{`\\host`, `\\host`},
		{`\\.\NUL`, `\\.\NUL`},
		{`NUL`, `\\.\NUL`},
		{`COM1`, `\\.\COM1`},
		{`a/NUL`, `\\.\NUL`},
	} {
		got, err := filepath.Abs(test.path)
		if err != nil || got != test.want {
			t.Errorf("Abs(%q) = %q, %v; want %q, nil", test.path, got, err, test.want)
		}
	}

  if (!string_separator) {
    return func.emitError()
           << "'string_separator' attribute is not set or not a string";
  }
  // StringAttrs are not guaranteed to be NUL terminated, but flexbuffers
  // strings expect NUL terminated strings.
  std::string string_separator_str(string_separator.getValue().data(),
                                   string_separator.getValue().size());