1%%
2%% %CopyrightBegin%
3%%
4%% Copyright Ericsson AB 2005-2015. All Rights Reserved.
5%%
6%% Licensed under the Apache License, Version 2.0 (the "License");
7%% you may not use this file except in compliance with the License.
8%% You may obtain a copy of the License at
9%%
10%%     http://www.apache.org/licenses/LICENSE-2.0
11%%
12%% Unless required by applicable law or agreed to in writing, software
13%% distributed under the License is distributed on an "AS IS" BASIS,
14%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15%% See the License for the specific language governing permissions and
16%% limitations under the License.
17%%
18%% %CopyrightEnd%
19%%
20
21-module(ssh_device).
22
23%% api
24-export([ssh_device/5]).
25
26%%% I wrote this because of i think a fully ssh client sample will be easy to start the ssh module better than
27%%% go though each function file.
28ssh_device(Host, Port, User, Pass, Cmd) ->
29    ssh:start(),
30    case ssh:connect(Host, Port,
31		     [{user, User}, {password, Pass},
32		      {silently_accept_hosts, true}, {quiet_mode, true}])
33	of
34      {ok, Conn} ->
35	  {ok, ChannelId} = ssh_connection:session_channel(Conn,
36							   infinity),
37	  ssh_connection:exec(Conn, ChannelId, Cmd, infinity),
38	  Init_rep = <<>>,
39	  wait_for_response(Conn, Host, Init_rep),
40	  ssh:close(Conn);
41      {error, nxdomain} ->
42          {error,nxdomain}
43    end.
44
45%%--------------------------------------------------------------------
46%%% Internal application API
47%%--------------------------------------------------------------------
48wait_for_response(Conn, Host, Acc) ->
49    receive
50      {ssh_cm, Conn, Msg} ->
51	  case Msg of
52	    {closed, _ChannelId} ->
53		{ok,Acc};
54	    {data, _, _, A} ->
55		Acc2 = <<Acc/binary, A/binary>>,
56		wait_for_response(Conn, Host, Acc2);
57	    _ ->
58		wait_for_response(Conn, Host, Acc)
59	  end
60    after
61    	5000 ->
62    	        {error,timeout}
63    end.
64