Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

class method

Socket.pack_sockaddr_in

(::Integer port, ::String ip) -> ::String

Socket.sockaddr_in(port, host) => sockaddr

Socket.pack_sockaddr_in(port, host) => sockaddr

static VALUE
sock_s_pack_sockaddr_in(VALUE self, VALUE port, VALUE host)
{
    struct rb_addrinfo *res = rsock_addrinfo(host, port, AF_UNSPEC, 0, 0, Qnil);
    VALUE addr = rb_str_new((char*)res->ai->ai_addr, res->ai->ai_addrlen);

    rb_freeaddrinfo(res);

    return addr;
}

Packs port and host as an AF_INET/AF_INET6 sockaddr string.

Example

Socket.sockaddr_in(80, "127.0.0.1")
#=> "\x02\x00\x00P\x7F\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00"

Socket.sockaddr_in(80, "::1")
#=> "\n\x00\x00P\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00"

See also .new .pack_sockaddr_un .ip_address_list .pair also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

‹ prev.new next ›.pack_sockaddr_un