pub fn poll_host_by_addr(addr: IpAddr, reactor: &Handle) -> HostByAddr
Returns host information for a given IP address.
The IP address can either be an IPv4 or IPv6 address. The function returns
a future performing all necessary IO via the Tokio reactor given by
For this initial version of the crate, the lookup is a
first and only if that does fail to yield a result, a DNS query for
PTR records. This initial version also does not yet fill
the aliases list of the returned