// systems by fcntl_linux_32bit.go to be SYS_FCNTL64.
var fcntl64Syscall uintptr = SYS_FCNTL

func fcntl(fd int, cmd, arg int) (int, error) {
	valptr, _, errno := Syscall(fcntl64Syscall, uintptr(fd), uintptr(cmd), uintptr(arg))
	var err error
	if errno != 0 {
		err = errno
	}
	return int(valptr), err
}

// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
func FcntlInt(fd uintptr, cmd, arg int) (int, error) {

			return
		}
	}

	// compare values
	gotStr := ""
	if gotTv.Value != nil {
		gotStr = gotTv.Value.ExactString()
	}
	if gotStr != valStr {
		t.Errorf("Eval(%q) got value %s, want %s", expr, gotStr, valStr)
	}
}

func TestEvalBasic(t *testing.T) {
	fset := token.NewFileSet()
	for _, typ := range Typ[Bool : String+1] {
		testEval(t, fset, nil, nopos, typ.Name(), typ, "", "")
	}

)

// validateWithRegex checks whether the given value matches the regexp r.
func validateWithRegex(path util.Path, val any, r *regexp.Regexp) (errs util.Errors) {
	valStr := fmt.Sprint(val)
	if len(r.FindString(valStr)) != len(valStr) {
		errs = util.AppendErr(errs, fmt.Errorf("invalid value %s: %v", path, val))
		printError(errs.ToError())
	}
	return errs
}

	Reclen  uint16
	Namlen  uint16
	Type    uint8
	Name    [1024]int8
	_       [3]byte
}

type Attrlist struct {
	Bitmapcount uint16
	Reserved    uint16
	Commonattr  uint32
	Volattr     uint32
	Dirattr     uint32
	Fileattr    uint32
	Forkattr    uint32
}

const (
	PathMax = 0x400
)

type RawSockaddrInet4 struct {
	Len    uint8
	Family uint8
	Port   uint16

	Reclen  uint16
	Namlen  uint16
	Type    uint8
	Name    [1024]int8
	_       [3]byte
}

type Attrlist struct {
	Bitmapcount uint16
	Reserved    uint16
	Commonattr  uint32
	Volattr     uint32
	Dirattr     uint32
	Fileattr    uint32
	Forkattr    uint32
}

const (
	PathMax = 0x400
)

type RawSockaddrInet4 struct {
	Len    uint8
	Family uint8
	Port   uint16

func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
	valptr, _, errno := sysvicall6(uintptr(unsafe.Pointer(&procfcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
	var err error
	if errno != 0 {
		err = errno
	}
	return int(valptr), err
}

// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.