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-rw-r--r--lib/kernel/src/os.erl81
1 files changed, 48 insertions, 33 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl
index f6769df585..742c000cc1 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 1997-2013. 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
@@ -24,16 +24,48 @@
-include("file.hrl").
--spec type() -> vxworks | {Osfamily, Osname} when
+%%% 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() -> {Osfamily, Osname} when
Osfamily :: unix | win32,
Osname :: atom().
type() ->
- case erlang:system_info(os_type) of
- {vxworks, _} ->
- vxworks;
- Else -> Else
- end.
+ erlang:system_info(os_type).
-spec version() -> VersionString | {Major, Minor, Release} when
VersionString :: string(),
@@ -83,25 +115,14 @@ find_executable1(_Name, [], _Extensions) ->
verify_executable(Name0, [Ext|Rest], OrigExtensions) ->
Name1 = Name0 ++ Ext,
- case os:type() of
- vxworks ->
- %% We consider all existing VxWorks files to be executable
- case file:read_file_info(Name1) of
- {ok, _} ->
- {ok, Name1};
- _ ->
- verify_executable(Name0, Rest, OrigExtensions)
- end;
+ case file:read_file_info(Name1) of
+ {ok, #file_info{type=regular,mode=Mode}}
+ when Mode band 8#111 =/= 0 ->
+ %% XXX This test for execution permission is not fool-proof
+ %% on Unix, since we test if any execution bit is set.
+ {ok, Name1};
_ ->
- case file:read_file_info(Name1) of
- {ok, #file_info{type=regular,mode=Mode}}
- when Mode band 8#111 =/= 0 ->
- %% XXX This test for execution permission is not fool-proof
- %% on Unix, since we test if any execution bit is set.
- {ok, Name1};
- _ ->
- verify_executable(Name0, Rest, OrigExtensions)
- end
+ verify_executable(Name0, Rest, OrigExtensions)
end;
verify_executable(Name, [], OrigExtensions) when OrigExtensions =/= [""] -> %% Windows
%% Will only happen on windows, hence case insensitivity
@@ -154,8 +175,7 @@ reverse_element(List) ->
extensions() ->
case type() of
{win32, _} -> [".exe",".com",".cmd",".bat"];
- {unix, _} -> [""];
- vxworks -> [""]
+ {unix, _} -> [""]
end.
%% Executes the given command in the default shell for the operating system.
@@ -173,11 +193,6 @@ cmd(Cmd) ->
{Cspec,_} -> lists:concat([Cspec," /c",Cmd])
end,
Port = open_port({spawn, Command}, [stream, in, eof, hide]),
- get_data(Port, []);
- %% VxWorks uses a 'sh -c hook' in 'vxcall.c' to run os:cmd.
- vxworks ->
- Command = lists:concat(["sh -c '", Cmd, "'"]),
- Port = open_port({spawn, Command}, [stream, in, eof]),
get_data(Port, [])
end.
@@ -319,7 +334,7 @@ mk_cmd(Cmd) when is_atom(Cmd) -> % backward comp.
mk_cmd(Cmd) ->
%% We insert a new line after the command, in case the command
%% contains a comment character.
- io_lib:format("(~s\n) </dev/null; echo \"\^D\"\n", [Cmd]).
+ io_lib:format("(~ts\n) </dev/null; echo \"\^D\"\n", [Cmd]).
validate(Atom) when is_atom(Atom) ->