ssh: simple info function (ssh_info:print/0).

1 files changed, 144 insertions, 0 deletions

diff --git a/lib/ssh/src/ssh_info.erl b/lib/ssh/src/ssh_info.erl
new file mode 100644
index 0000000000..073a9c7d28
--- /dev/null
+++ b/lib/ssh/src/ssh_info.erl
@@ -0,0 +1,144 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2008-2014. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% 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.
+%%
+%% %CopyrightEnd%
+%%
+
+%%
+%%----------------------------------------------------------------------
+%% Purpose: Print some info of a running ssh aplication.
+%%----------------------------------------------------------------------
+
+-module(ssh_info).
+
+-compile(export_all).
+
+print() ->
+    try supervisor:which_children(ssh_sup)
+    of
+	_ ->
+	    io:nl(),
+	    print_general(),
+	    io:nl(),
+	    underline("Client part", $=),
+	    print_clients(),
+	    io:nl(),
+	    underline("Server part", $=),
+	    print_servers(),
+	    %% case os:type() of
+	    %% 	{unix,_} ->
+	    %% 	    io:nl(),
+	    %% 	    underline("Linux part", $=),
+	    %% 	    underline("Listening"),
+	    %% 	    catch io:format(os:cmd("netstat -tpln")),
+	    %% 	    io:nl(),
+	    %% 	    underline("Other"),
+	    %% 	    catch io:format(os:cmd("netstat -tpn"));
+	    %% 	_ -> ok
+	    %% end,
+	    ok
+    catch
+	_:_ ->
+	    io:format("Ssh not found~n",[])
+    end.
+
+%%%================================================================
+print_general() ->
+    {_Name, Slogan, Ver} = lists:keyfind(ssh,1,application:which_applications()),
+    underline(io_lib:format("~s  ~s", [Slogan, Ver]), $=),
+    io:format('This printout is generated ~s. ~n',[datetime()]).
+
+%%%================================================================
+print_clients() ->
+    try
+	lists:foreach(fun print_client/1, supervisor:which_children(sshc_sup))
+    catch
+	C:E ->
+	    io:format('***FAILED: ~p:~p~n',[C,E])
+    end.
+
+print_client({undefined,Pid,supervisor,[ssh_connection_handler]}) ->
+    {{Local,Remote},_Str} = ssh_connection_handler:get_print_info(Pid),
+    io:format("    Local=~s Remote=~s~n",[fmt_host_port(Local),fmt_host_port(Remote)]);
+print_client(Other) ->
+    io:format("    [[Other 1: ~p]]~n",[Other]).
+
+
+%%%================================================================
+print_servers() ->
+    try
+	lists:foreach(fun print_server/1, supervisor:which_children(sshd_sup))
+    catch
+	C:E ->
+	    io:format('***FAILED: ~p:~p~n',[C,E])
+    end.
+
+print_server({{server,ssh_system_sup,LocalHost,LocalPort},Pid,supervisor,[ssh_system_sup]}) when is_pid(Pid) ->
+    io:format('Local=~s (~p children)~n',[fmt_host_port({LocalHost,LocalPort}),
+					  ssh_acceptor:number_of_connections(Pid)]),
+    lists:foreach(fun print_system_sup/1, supervisor:which_children(Pid));
+print_server(Other) ->
+    io:format("    [[Other 2: ~p]]~n",[Other]).
+    
+print_system_sup({Ref,Pid,supervisor,[ssh_subsystem_sup]}) when is_reference(Ref),
+								is_pid(Pid) ->
+    lists:foreach(fun print_channels/1, supervisor:which_children(Pid));
+print_system_sup({{ssh_acceptor_sup,LocalHost,LocalPort}, Pid,supervisor, [ssh_acceptor_sup]}) when is_pid(Pid) ->
+    io:format("    [Acceptor for ~s]~n",[fmt_host_port({LocalHost,LocalPort})]);
+print_system_sup(Other) -> 
+    io:format("    [[Other 3: ~p]]~n",[Other]).
+
+print_channels({{server,ssh_channel_sup,_,_},Pid,supervisor,[ssh_channel_sup]}) when is_pid(Pid) ->
+    lists:foreach(fun print_channel/1, supervisor:which_children(Pid));
+print_channels(Other) -> 
+    io:format("    [[Other 4: ~p]]~n",[Other]).
+
+
+print_channel({Ref,Pid,worker,[ssh_channel]}) when is_reference(Ref), 
+						   is_pid(Pid)  ->
+    {{ConnManager,ChannelID}, Str} = ssh_channel:get_print_info(Pid),
+    {{Local,Remote},StrM} = ssh_connection_handler:get_print_info(ConnManager),
+    io:format('    ch ~p: ~s ~s',[ChannelID, StrM, Str]),
+    io:format("    Local=~s Remote=~s~n",[fmt_host_port(Local),fmt_host_port(Remote)]);
+print_channel(Other) -> 
+    io:format("    [[Other 5: ~p]]~n",[Other]).
+	      
+%%%================================================================
+underline(Str) ->
+    underline(Str, $-).
+
+underline(Str, LineChar) ->
+    Len = lists:flatlength(Str),
+    io:format('~s~n',[Str]),
+    line(Len,LineChar).
+
+line(Len, Char) ->
+    io:format('~*c~n', [Len,Char]).
+	    
+
+datetime() ->
+    {{YYYY,MM,DD}, {H,M,S}} = calendar:now_to_universal_time(now()),
+    lists:flatten(io_lib:format('~4w-~2..0w-~2..0w ~2..0w:~2..0w:~2..0w UTC',[YYYY,MM,DD, H,M,S])).
+
+
+fmt_host_port({{A,B,C,D},Port}) -> io_lib:format('~p.~p.~p.~p:~p',[A,B,C,D,Port]);
+fmt_host_port({Host,Port}) -> io_lib:format('~s:~p',[Host,Port]).
+
+
+
+nyi() ->
+    io:format('Not yet implemented~n',[]),
+    nyi.