The R13B03 release.OTP_R13B03

1 files changed, 79 insertions, 0 deletions

diff --git a/lib/ssh/src/ssh_io.erl b/lib/ssh/src/ssh_io.erl
new file mode 100755
index 0000000000..0e343c20b4
--- /dev/null
+++ b/lib/ssh/src/ssh_io.erl
@@ -0,0 +1,79 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2005-2009. 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%
+%%
+
+%%
+
+%%% Description: user interaction for SSH
+
+-module(ssh_io).
+
+-export([yes_no/1, read_password/1, read_line/1, format/2]).
+-import(lists, [reverse/1]).
+
+
+read_line(Prompt) when is_list(Prompt) ->
+    io:get_line(list_to_atom(Prompt));
+read_line(Prompt) when is_atom(Prompt) ->
+    io:get_line(Prompt).
+
+read_ln(Prompt) ->
+    trim(read_line(Prompt)).
+
+yes_no(Prompt) ->
+    io:format("~s [y/n]?", [Prompt]),
+    case read_ln('') of
+	"y" -> yes;
+	"n" -> no;
+	"Y" -> yes;
+	"N" -> no;
+	_ ->
+	    io:format("please answer y or n\n"),
+	    yes_no(Prompt)
+    end.
+
+
+read_password(Prompt) ->
+    format("~s", [listify(Prompt)]),
+    case io:get_password() of
+	"" ->
+	    read_password(Prompt);
+	Pass -> Pass
+    end.
+
+listify(A) when is_atom(A) ->
+    atom_to_list(A);
+listify(L) when is_list(L) ->
+    L.
+
+format(Fmt, Args) ->
+    io:format(Fmt, Args).
+
+
+trim(Line) when is_list(Line) ->
+    reverse(trim1(reverse(trim1(Line))));
+trim(Other) -> Other.
+
+trim1([$\s|Cs]) -> trim(Cs);
+trim1([$\r|Cs]) -> trim(Cs);
+trim1([$\n|Cs]) -> trim(Cs);
+trim1([$\t|Cs]) -> trim(Cs);
+trim1(Cs) -> Cs.
+    
+
+