pkg syscall (darwin-arm64), func Syscall(uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (darwin-arm64), func Syscall6(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (darwin-arm64), func Syscall9(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)

		return false
	}

	// check if it is a number
	if strings.IndexFunc(entry.Name(), isNotNumber) != -1 {
		return false
	}
	return true
}

func GetFd(f fs.File) (uintptr, error) {
	if fdable, ok := f.(interface{ Fd() uintptr }); ok {
		return fdable.Fd(), nil
	}

	return 0, fmt.Errorf("unable to get fd")
}

/// mostly copy pasted from spire below:

pkg syscall (netbsd-arm64-cgo), func Syscall6(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (netbsd-arm64-cgo), func Syscall9(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (netbsd-arm64-cgo), func Syscall(uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)

func CheckPortAvailability(host, port string, opts TCPOptions) (err error) {
	lc := &net.ListenConfig{
		Control: func(network, address string, c syscall.RawConn) error {
			c.Control(func(fdPtr uintptr) {
				if opts.Interface != "" {
					// When interface is specified look for specifically port availability on
					// the specified interface if any.

pkg runtime/debug, func SetPanicOnFault(bool) bool
pkg runtime/debug, func WriteHeapDump(uintptr)
pkg sync, method (*Pool) Get() interface{}
pkg sync, method (*Pool) Put(interface{})
pkg sync, type Pool struct
pkg sync, type Pool struct, New func() interface{}
pkg syscall (darwin-386), func FcntlFlock(uintptr, int, *Flock_t) error
pkg syscall (darwin-386), func Mlock([]uint8) error

	if filepath.Base(s) != "gorm.io" {
		s = dir
	}
	return filepath.ToSlash(s) + "/"
}

// FileWithLineNum return the file name and line number of the current file
func FileWithLineNum() string {
	pcs := [13]uintptr{}
	// the third caller usually from gorm internal
	len := runtime.Callers(3, pcs[:])
	frames := runtime.CallersFrames(pcs[:len])
	for i := 0; i < len; i++ {
		// second return value is "more", not "ok"

pkg syscall (freebsd-arm64), func Syscall(uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (freebsd-arm64), func Syscall6(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (freebsd-arm64), func Syscall9(uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)

	"golang.org/x/sys/unix"
)

func setTCPParametersFn(opts TCPOptions) func(network, address string, c syscall.RawConn) error {
	return func(network, address string, c syscall.RawConn) error {
		c.Control(func(fdPtr uintptr) {
			// got socket file descriptor to set parameters.
			fd := int(fdPtr)

			_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)

			_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)

	inode      uint64
}

func (n *NetnsWrapper) Inode() uint64 {
	return n.inode
}

func (n *NetnsWrapper) Close() error {
	return n.innerNetns.Close()
}

func (n *NetnsWrapper) Fd() uintptr {
	return n.innerNetns.Fd()
}

func inodeForFd(n NetnsFd) (uint64, error) {
	stats := &unix.Stat_t{}
	err := unix.Fstat(int(n.Fd()), stats)
	return stats.Ino, err
}

// uint is an unsigned integer type that is at least 32 bits in size. It is a
// distinct type, however, and not an alias for, say, uint32.
type uint uint

// uintptr is an integer type that is large enough to hold the bit pattern of
// any pointer.
type uintptr uintptr

// byte is an alias for uint8 and is equivalent to uint8 in all ways. It is
// used, by convention, to distinguish byte values from 8-bit unsigned
// integer values.