input 192.168.15.69 output false

BUT the result should be true.

the value of sa.in->sin_addr.s_addr is 0x450FA8C0

My environment is OSX ,it is little end.And the following implementation is good for the IP 192.168.15.69:

static gboolean nice_interfaces_is_private_ip (const struct sockaddr *_sa)
{
  union {
    const struct sockaddr *addr;
    const struct sockaddr_in *in;
  } sa;

  sa.addr = _sa;

  if (sa.addr->sa_family == AF_INET) {
    /* 10.x.x.x/8 */
    if (sa.in->sin_addr.s_addr >> 24 == 0x0A)
      return TRUE;

    /* 172.16.0.0 - 172.31.255.255 = 172.16.0.0/10 */
    if (sa.in->sin_addr.s_addr >> 20 == 0xAC1)
      return TRUE;

    /* 192.168.x.x/16 */
    if ((sa.in->sin_addr.s_addr & 0xFFFF) == 0xA8C0)
      return TRUE;

    /* 169.254.x.x/16  (for APIPA) */
    if (sa.in->sin_addr.s_addr >> 16 == 0xA9FE)
      return TRUE;
  }
  
  return FALSE;
}