Wraps getaddrinfo()/freeaddrinfo() and manages an addrinfo instance.
Wraps getaddrinfo()/freeaddrinfo() and manages an addrinfo instance; uses C strings as arguments. This class is memory-friendly when used with 'scope' instances.
Obtains the error message for errcode.
Address information struct as returned by getaddrinfo().
Declaration of and wrappers for the addrinfo address lookup API.