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## The contents of this file are subject to the Mozilla Public License
## Version 1.1 (the "License"); you may not use this file except in
## compliance with the License. You may obtain a copy of the License
## at https://www.mozilla.org/MPL/
##
## Software distributed under the License is distributed on an "AS IS"
## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
## the License for the specific language governing rights and
## limitations under the License.
##
## The Original Code is RabbitMQ.
##
## The Initial Developer of the Original Code is GoPivotal, Inc.
## Copyright (c) 2007-2019 Pivotal Software, Inc. All rights reserved.
defmodule RabbitMQ.CLI.Diagnostics.Helpers do
def check_port_connectivity(port, node_name, timeout) do
hostname = Regex.replace(~r/^(.+)@/, to_string(node_name), "") |> to_charlist
try do
case :gen_tcp.connect(hostname, port, [], timeout) do
{:error, _} ->
false
{:ok, port} ->
:ok = :gen_tcp.close(port)
true
end
# `gen_tcp:connect/4` will throw if the port is outside of its
# expected domain
catch
:exit, _ -> false
end
end
def check_listener_connectivity(%{port: port}, node_name, timeout) do
check_port_connectivity(port, node_name, timeout)
end
end
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