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-rw-r--r--lib/kernel/src/os.erl38
1 files changed, 37 insertions, 1 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl
index f6769df585..b986f3a61e 100644
--- a/lib/kernel/src/os.erl
+++ b/lib/kernel/src/os.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2012. 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
@@ -24,6 +24,42 @@
-include("file.hrl").
+%%% BIFs
+
+-export([getenv/0, getenv/1, getpid/0, putenv/2, timestamp/0]).
+
+-spec getenv() -> [string()].
+
+getenv() -> erlang:nif_error(undef).
+
+-spec getenv(VarName) -> Value | false when
+ VarName :: string(),
+ Value :: string().
+
+getenv(_) ->
+ erlang:nif_error(undef).
+
+-spec getpid() -> Value when
+ Value :: string().
+
+getpid() ->
+ erlang:nif_error(undef).
+
+-spec putenv(VarName, Value) -> true when
+ VarName :: string(),
+ Value :: string().
+
+putenv(_, _) ->
+ erlang:nif_error(undef).
+
+-spec timestamp() -> Timestamp when
+ Timestamp :: erlang:timestamp().
+
+timestamp() ->
+ erlang:nif_error(undef).
+
+%%% End of BIFs
+
-spec type() -> vxworks | {Osfamily, Osname} when
Osfamily :: unix | win32,
Osname :: atom().