diff options
Diffstat (limited to 'lib/kernel/src/os.erl')
| -rw-r--r-- | lib/kernel/src/os.erl | 64 |
1 files changed, 43 insertions, 21 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl index d0b498edc9..d1feae771d 100644 --- a/lib/kernel/src/os.erl +++ b/lib/kernel/src/os.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1997-2010. All Rights Reserved. +%% Copyright Ericsson AB 1997-2011. 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 @@ -50,7 +50,7 @@ find_executable(Name, Path) -> relative -> find_executable1(Name, split_path(Path), Extensions); _ -> - case verify_executable(Name, Extensions) of + case verify_executable(Name, Extensions, Extensions) of {ok, Complete} -> Complete; error -> @@ -60,7 +60,7 @@ find_executable(Name, Path) -> find_executable1(Name, [Base|Rest], Extensions) -> Complete0 = filename:join(Base, Name), - case verify_executable(Complete0, Extensions) of + case verify_executable(Complete0, Extensions, Extensions) of {ok, Complete} -> Complete; error -> @@ -69,7 +69,7 @@ find_executable1(Name, [Base|Rest], Extensions) -> find_executable1(_Name, [], _Extensions) -> false. -verify_executable(Name0, [Ext|Rest]) -> +verify_executable(Name0, [Ext|Rest], OrigExtensions) -> Name1 = Name0 ++ Ext, case os:type() of vxworks -> @@ -78,21 +78,40 @@ verify_executable(Name0, [Ext|Rest]) -> {ok, _} -> {ok, Name1}; _ -> - verify_executable(Name0, Rest) + verify_executable(Name0, Rest, OrigExtensions) end; _ -> case file:read_file_info(Name1) of - {ok, #file_info{mode=Mode}} when Mode band 8#111 =/= 0 -> - %% XXX This test for execution permission is not full-proof + {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) + verify_executable(Name0, Rest, OrigExtensions) end end; -verify_executable(_, []) -> +verify_executable(Name, [], OrigExtensions) when OrigExtensions =/= [""] -> %% Windows + %% Will only happen on windows, hence case insensitivity + case can_be_full_name(string:to_lower(Name),OrigExtensions) of + true -> + verify_executable(Name,[""],[""]); + _ -> + error + end; +verify_executable(_, [], _) -> error. +can_be_full_name(_Name,[]) -> + false; +can_be_full_name(Name,[H|T]) -> + case lists:suffix(H,Name) of %% Name is in lowercase, cause this is a windows thing + true -> + true; + _ -> + can_be_full_name(Name,T) + end. + split_path(Path) -> case type() of {win32, _} -> @@ -118,7 +137,8 @@ reverse_element([$"|T]) -> %" reverse_element(List) -> lists:reverse(List). --spec extensions() -> [string()]. +-spec extensions() -> [string(),...]. +%% Extensions in lower case extensions() -> case type() of {win32, _} -> [".exe",".com",".cmd",".bat"]; @@ -211,9 +231,13 @@ start_port_srv(Request) -> catch error:_ -> false end, - start_port_srv_loop(Request, StayAlive). + start_port_srv_handle(Request), + case StayAlive of + true -> start_port_srv_loop(); + false -> exiting + end. -start_port_srv_loop({Ref,Client}, StayAlive) -> +start_port_srv_handle({Ref,Client}) -> Reply = try open_port({spawn, ?SHELL},[stream]) of Port when is_port(Port) -> (catch port_connect(Port, Client)), @@ -223,20 +247,18 @@ start_port_srv_loop({Ref,Client}, StayAlive) -> error:Reason -> {Reason,erlang:get_stacktrace()} end, - Client ! {Ref,Reply}, - case StayAlive of - true -> start_port_srv_loop(get_open_port_request(), true); - false -> exiting - end. + Client ! {Ref,Reply}. + -get_open_port_request() -> +start_port_srv_loop() -> receive {Ref, Client} = Request when is_reference(Ref), is_pid(Client) -> - Request; + start_port_srv_handle(Request); _Junk -> - get_open_port_request() - end. + ignore + end, + start_port_srv_loop(). %% %% unix_get_data(Port) -> Result |