Addrinfo#canonname

() -> ::String

addrinfo.canonname => string or nil

static VALUE
addrinfo_canonname(VALUE self)
{
    rb_addrinfo_t *rai = get_addrinfo(self);
    return rai->canonname;
}

returns the canonical name as a string.

nil is returned if no canonical name.

The canonical name is set by Addrinfo.getaddrinfo when AI_CANONNAME is specified.

Example

list = Addrinfo.getaddrinfo("www.ruby-lang.org", 80, :INET, :STREAM, nil, Socket::AI_CANONNAME)
p list[0] #=> #<Addrinfo: 221.186.184.68:80 TCP carbon.ruby-lang.org (www.ruby-lang.org)>
p list[0].canonname #=> "carbon.ruby-lang.org"

See also #bind #connect #afamily #connect_from also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0

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