ssl: Add set_log_level/1

- Add utility function for setting log level of ssl application
  modules.

Change-Id: Iee278ada17b4d872a9891094b96ce5343bf0ade4

1 files changed, 28 insertions, 1 deletions

diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 592c02a28c..9cf2b8acb0 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -55,7 +55,8 @@
          format_error/1, renegotiate/1, prf/5, negotiated_protocol/1, 
 	 connection_information/1, connection_information/2]).
 %% Misc
--export([handle_options/2, tls_version/1, new_ssl_options/3, suite_to_str/1]).
+-export([handle_options/2, tls_version/1, new_ssl_options/3, suite_to_str/1,
+         set_log_level/1]).
 
 -deprecated({ssl_accept, 1, eventually}).
 -deprecated({ssl_accept, 2, eventually}).
@@ -801,6 +802,32 @@ suite_to_str(Cipher) ->
     ssl_cipher:suite_to_str(Cipher).
 
 
+%%--------------------------------------------------------------------
+-spec set_log_level(atom()) -> ok | {error, term()}.
+%%
+%% Description: Set log level for the SSL application
+%%--------------------------------------------------------------------
+set_log_level(Level) ->
+    case application:get_all_key(ssl) of
+        {ok, PropList} ->
+            Modules = proplists:get_value(modules, PropList),
+            set_module_level(Modules, Level);
+        undefined ->
+            {error, ssl_not_started}
+    end.
+
+set_module_level(Modules, Level) ->
+    Fun = fun (Module) ->
+                  ok = logger:set_module_level(Module, Level)
+          end,
+    try lists:map(Fun, Modules) of
+        _ ->
+            ok
+    catch
+        error:{badmatch, Error} ->
+            Error
+    end.
+
 %%%--------------------------------------------------------------
 %%% Internal functions
 %%%--------------------------------------------------------------------