}
	return z.sendDataAndWaitForAck(data, fd)
}

func (z *ZtunnelConnection) sendDataAndWaitForAck(data []byte, fd *int) (*zdsapi.WorkloadResponse, error) {
	var rights []byte
	if fd != nil {
		rights = unix.UnixRights(*fd)
	}
	err := z.u.SetWriteDeadline(time.Now().Add(readWriteDeadline))
	if err != nil {
		return nil, err
	}

	_, _, err = z.u.WriteMsgUnix(data, rights, nil)
	if err != nil {
		return nil, err

pkg syscall (freebsd-arm64), func Truncate(string, int64) error
pkg syscall (freebsd-arm64), func Umask(int) int
pkg syscall (freebsd-arm64), func Undelete(string) error
pkg syscall (freebsd-arm64), func UnixRights(...int) []uint8
pkg syscall (freebsd-arm64), func Unmount(string, int) error
pkg syscall (freebsd-arm64), func Wait4(int, *WaitStatus, int, *Rusage) (int, error)

pkg syscall (darwin-arm64), func Truncate(string, int64) error
pkg syscall (darwin-arm64), func Umask(int) int
pkg syscall (darwin-arm64), func Undelete(string) error
pkg syscall (darwin-arm64), func UnixRights(...int) []uint8
pkg syscall (darwin-arm64), func Unmount(string, int) error
pkg syscall (darwin-arm64), func Wait4(int, *WaitStatus, int, *Rusage) (int, error)
pkg syscall (darwin-arm64), func Write(int, []uint8) (int, error)

pkg syscall (freebsd-riscv64), func Umask(int) int #53466
pkg syscall (freebsd-riscv64), func Undelete(string) error #53466
pkg syscall (freebsd-riscv64), func UnixRights(...int) []uint8 #53466
pkg syscall (freebsd-riscv64), func Unmount(string, int) error #53466
pkg syscall (freebsd-riscv64), func Wait4(int, *WaitStatus, int, *Rusage) (int, error) #53466