nodes := make([]sysctlNode, olen/sz)
	np := (*byte)(unsafe.Pointer(&nodes[0]))
	if err := sysctl(mib, np, &olen, qp, sz); err != nil {
		return nil, err
	}

	return nodes, nil
}

func nametomib(name string) ([]int32, error) {
	// Split name into components.
	var parts []string
	last := 0
	for i := 0; i < len(name); i++ {
		if name[i] == '.' {
			parts = append(parts, name[last:i])
			last = i + 1
		}

	}
	return kevent(kq, change, len(changes), event, len(events), timeout)
}

func Sysctl(name string) (value string, err error) {
	// Translate name to mib number.
	mib, err := nametomib(name)
	if err != nil {
		return "", err
	}

	// Find size.
	n := uintptr(0)
	if err = sysctl(mib, nil, &n, nil, 0); err != nil {
		return "", err
	}
	if n == 0 {
		return "", nil
	}

type SockaddrDatalink struct {
	Len    uint8
	Family uint8
	Index  uint16
	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [24]int8
	raw    RawSockaddrDatalink
}

func nametomib(name string) (mib []_C_int, err error) {
	// Perform lookup via a binary search
	left := 0
	right := len(sysctlMib) - 1
	for {
		idx := int(uint(left+right) >> 1)
		switch {
		case name == sysctlMib[idx].ctlname:

	Family uint8
	Index  uint16
	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [46]int8
	raw    RawSockaddrDatalink
}

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

	// NOTE(rsc): It seems strange to set the buffer to have
	// size CTL_MAXNAME+2 but use only CTL_MAXNAME

	nodes = make([]Sysctlnode, olen/sz)
	np := (*byte)(unsafe.Pointer(&nodes[0]))
	if err = sysctl(mib, np, &olen, qp, sz); err != nil {
		return nil, err
	}

	return nodes, nil
}

func nametomib(name string) (mib []_C_int, err error) {
	// Split name into components.
	var parts []string
	last := 0
	for i := 0; i < len(name); i++ {
		if name[i] == '.' {
			parts = append(parts, name[last:i])
			last = i + 1

	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [12]int8
	Rcf    uint16
	Route  [16]uint16
	raw    RawSockaddrDatalink
}

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

	// NOTE(rsc): It seems strange to set the buffer to have
	// size CTL_MAXNAME+2 but use only CTL_MAXNAME

	Family uint8
	Index  uint16
	Type   uint8
	Nlen   uint8
	Alen   uint8
	Slen   uint8
	Data   [12]int8
	raw    RawSockaddrDatalink
}

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

	// NOTE(rsc): It seems strange to set the buffer to have
	// size CTL_MAXNAME+2 but use only CTL_MAXNAME

	Route  [16]uint16
	raw    RawSockaddrDatalink
}

func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
	return nil, EAFNOSUPPORT
}

// Translate "kern.hostname" to []_C_int{0,1,2,3}.
func nametomib(name string) (mib []_C_int, err error) {
	const siz = unsafe.Sizeof(mib[0])

	// NOTE(rsc): It seems strange to set the buffer to have
	// size CTL_MAXNAME+2 but use only CTL_MAXNAME

}

func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
	return nil, EAFNOSUPPORT
}

func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)

func nametomib(name string) (mib []_C_int, err error) {
	i := sort.Search(len(sysctlMib), func(i int) bool {
		return sysctlMib[i].ctlname >= name
	})
	if i < len(sysctlMib) && sysctlMib[i].ctlname == name {

	nodes = make([]Sysctlnode, olen/sz)
	np := (*byte)(unsafe.Pointer(&nodes[0]))
	if err = sysctl(mib, np, &olen, qp, sz); err != nil {
		return nil, err
	}

	return nodes, nil
}

func nametomib(name string) (mib []_C_int, err error) {
	// Split name into components.
	var parts []string
	last := 0
	for i := 0; i < len(name); i++ {
		if name[i] == '.' {
			parts = append(parts, name[last:i])
			last = i + 1