Socket.tcp_without_fast_fallback

# File tmp/rubies/ruby-3.4.1/ext/socket/lib/socket.rb, line 906
def self.tcp_without_fast_fallback(host, port, local_host, local_port, connect_timeout:, resolv_timeout:)
  last_error = nil
  ret = nil

  local_addr_list = nil
  if local_host != nil || local_port != nil
    local_addr_list = Addrinfo.getaddrinfo(local_host, local_port, nil, :STREAM, nil)
  end

  Addrinfo.foreach(host, port, nil, :STREAM, timeout: resolv_timeout) {|ai|
    if local_addr_list
      local_addr = local_addr_list.find {|local_ai| local_ai.afamily == ai.afamily }
      next unless local_addr
    else
      local_addr = nil
    end
    begin
      sock = local_addr ?
        ai.connect_from(local_addr, timeout: connect_timeout) :
        ai.connect(timeout: connect_timeout)
    rescue SystemCallError
      last_error = $!
      next
    end
    ret = sock
    break
  }
  unless ret
    if last_error
      raise last_error
    else
      raise SocketError, "no appropriate local address"
    end
  end

  ret
end