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-rw-r--r--lib/kernel/src/os.erl23
1 files changed, 13 insertions, 10 deletions
diff --git a/lib/kernel/src/os.erl b/lib/kernel/src/os.erl
index 1f96e5c3c0..86f2f94f1f 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},
ok.
@@ -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.