Function IsRoutable

connectd/netaddress.c:190–193

}

static bool IsRoutable(const struct wireaddr *addr)
{
    return IsValid(addr) && !(IsRFC1918(addr) || IsRFC2544(addr) || IsRFC3927(addr) || IsRFC4862(addr) || IsRFC6598(addr) || IsRFC5737(addr) || (IsRFC4193(addr) && !IsTor(addr)) || IsRFC4843(addr) || IsLocal(addr) || IsInternal(addr));
}

/* Trick I learned from Harald Welte: create UDP socket, connect() and
 * then query address. */