1 files changed, 99 insertions, 0 deletions
diff --git a/lib/tftp/src/tftp_logger.erl b/lib/tftp/src/tftp_logger.erl
new file mode 100644
index 0000000000..548ed509dc
--- /dev/null
+++ b/lib/tftp/src/tftp_logger.erl
@@ -0,0 +1,99 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2008-2018. All Rights Reserved.
+%% 
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+%%
+-module(tftp_logger).
+
+%%-------------------------------------------------------------------
+%% Interface
+%%-------------------------------------------------------------------
+
+%% public functions
+-export([
+	 error_msg/2,
+	 warning_msg/2,
+	 info_msg/2
+	]).
+
+-export([behaviour_info/1]).
+
+behaviour_info(callbacks) ->
+    [{error_msg, 2}, {warning_msg, 2}, {info_msg, 2}];
+behaviour_info(_) ->
+    undefined.
+
+%%-------------------------------------------------------------------
+%% error_msg(Format, Data) -> ok | exit(Reason)
+%% 
+%% Format = string()
+%% Data = [term()]
+%% Reason = term()
+%%
+%% Log an error message
+%%-------------------------------------------------------------------
+
+error_msg(Format, Data) ->
+    {Format2, Data2} = add_timestamp(Format, Data),
+    error_logger:error_msg(Format2, Data2).
+
+%%-------------------------------------------------------------------
+%% warning_msg(Format, Data) -> ok | exit(Reason)
+%% 
+%% Format = string()
+%% Data = [term()]
+%% Reason = term()
+%%
+%% Log a warning message
+%%-------------------------------------------------------------------
+
+warning_msg(Format, Data) ->
+    {Format2, Data2} = add_timestamp(Format, Data),
+    error_logger:warning_msg(Format2, Data2).
+
+%%-------------------------------------------------------------------
+%% info_msg(Format, Data) -> ok | exit(Reason)
+%% 
+%% Format = string()
+%% Data = [term()]
+%% Reason = term()
+%%
+%% Log an info message
+%%-------------------------------------------------------------------
+
+info_msg(Format, Data) ->
+    {Format2, Data2} = add_timestamp(Format, Data),
+    io:format(Format2, Data2).
+
+%%-------------------------------------------------------------------
+%% Add timestamp to log message
+%%-------------------------------------------------------------------
+
+add_timestamp(Format, Data) ->
+    Time = erlang:timestamp(),
+    {{_Y, _Mo, _D}, {H, Mi, S}} = calendar:now_to_universal_time(Time),
+    %% {"~p-~s-~sT~s:~s:~sZ,~6.6.0w tftp: " ++ Format ++ "\n", 
+    %%  [Y, t(Mo), t(D), t(H), t(Mi), t(S), MicroSecs | Data]}.
+    {"~s:~s:~s tftp: " ++ Format, [t(H), t(Mi), t(S) | Data]}.
+
+%% Convert 9 to "09".
+t(Int) ->
+    case integer_to_list(Int) of
+	[Single] -> [$0, Single];
+        Multi    -> Multi
+    end.