Function getaddrinfo 

pub fn getaddrinfo(
    host: &str,
    port: &str,
    hints: &addrinfo,
    timeout: f64,
) -> Result<addrinfo, Error>

Fiber-friendly version of getaddrinfo(3).

• host - host name, i.e. “tarantool.org”
• port - service name, i.e. “80” or “http”
• hints - hints, see getaddrinfo(3)
• timeout - timeout