diff options
Diffstat (limited to 'lib/kernel/src')
| -rw-r--r-- | lib/kernel/src/os.erl | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl index 742c000cc1..ded03361ee 100644 --- a/lib/kernel/src/os.erl +++ b/lib/kernel/src/os.erl @@ -126,7 +126,7 @@ verify_executable(Name0, [Ext|Rest], OrigExtensions) -> end; 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 + case can_be_full_name(string:to_lower(Name),OrigExtensions) of true -> verify_executable(Name,[""],[""]); _ -> @@ -150,7 +150,7 @@ split_path(Path) -> {win32, _} -> {ok,Curr} = file:get_cwd(), split_path(Path, $;, [], [Curr]); - _ -> + _ -> split_path(Path, $:, [], []) end. @@ -187,11 +187,14 @@ cmd(Cmd) -> {unix, _} -> unix_cmd(Cmd); {win32, Wtype} -> - Command = case {os:getenv("COMSPEC"),Wtype} of + Command0 = case {os:getenv("COMSPEC"),Wtype} of {false,windows} -> lists:concat(["command.com /c", Cmd]); {false,_} -> lists:concat(["cmd /c", Cmd]); {Cspec,_} -> lists:concat([Cspec," /c",Cmd]) end, + %% open_port/2 awaits string() in Command, but io_lib:chars() can be + %% deep lists according to io_lib module description. + Command = lists:flatten(Command0), Port = open_port({spawn, Command}, [stream, in, eof, hide]), get_data(Port, []) end. @@ -213,7 +216,7 @@ unix_cmd(Cmd) -> end. %% The -s flag implies that only the positional parameters are set, -%% and the commands are read from standard input. We set the +%% and the commands are read from standard input. We set the %% $1 parameter for easy identification of the resident shell. %% -define(SHELL, "/bin/sh -s unix:cmd 2>&1"). @@ -226,7 +229,7 @@ unix_cmd(Cmd) -> -spec start_port() -> port(). start_port() -> Ref = make_ref(), - Request = {Ref,self()}, + Request = {Ref,self()}, {Pid, Mon} = case whereis(?PORT_CREATOR_NAME) of undefined -> spawn_monitor(fun() -> @@ -273,7 +276,7 @@ start_port_srv_handle({Ref,Client}) -> Port catch error:Reason -> - {Reason,erlang:get_stacktrace()} + {Reason,erlang:get_stacktrace()} end, Client ! {Ref,Reply}. @@ -355,16 +358,16 @@ get_data(Port, Sofar) -> {Port, {data, Bytes}} -> get_data(Port, [Sofar|Bytes]); {Port, eof} -> - Port ! {self(), close}, + Port ! {self(), close}, receive {Port, closed} -> true - end, + end, receive - {'EXIT', Port, _} -> + {'EXIT', Port, _} -> ok after 1 -> % force context switch ok - end, + end, lists:flatten(Sofar) end. |