File 0642-ftp-remove-unused-code-in-comments.patch of Package erlang

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File 0642-ftp-remove-unused-code-in-comments.patch of Package erlang (Revision 2b7f631fe5821f577e2de7203216335f)

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From cb104e9078cfe43842214258c5a75ea9535dd43a Mon Sep 17 00:00:00 2001
From: Kiko Fernandez-Reyes <kiko@erlang.org>
Date: Mon, 23 Jan 2023 09:40:34 +0100
Subject: [PATCH 2/3] ftp: remove unused code in comments

---
 lib/ftp/src/ftp.erl | 76 +++++++--------------------------------------
 1 file changed, 11 insertions(+), 65 deletions(-)

diff --git a/lib/ftp/src/ftp.erl b/lib/ftp/src/ftp.erl
index cff22946ab..c44626a663 100644
--- a/lib/ftp/src/ftp.erl
+++ b/lib/ftp/src/ftp.erl
@@ -1784,81 +1784,27 @@ handle_ctrl_result({pos_prel, _}, #state{caller = {dir, Dir}} = State0) ->
             ctrl_result_response(error, State0, Error)
     end;
 
-handle_ctrl_result({pos_compl, _}, #state{caller = {handle_dir_result, Dir,
-                                                    Data}, client = From}
-                   = State) ->
-    case Dir of
-        "" -> % Current directory
-            gen_server:reply(From, {ok, Data}),
-            {noreply, State#state{client = undefined,
-                                  caller = undefined}};
-        _ ->
-            %% <WTF>
-            %% Dir cannot be assumed to be a dir. It is a string that
-            %% could be a dir, but could also be a file or even a string
-            %% containing wildcards (*).
-            %%
-            %% %% If there is only one line it might be a directory with one
-            %% %% file but it might be an error message that the directory
-            %% %% was not found. So in this case we have to endure a little
-            %% %% overhead to be able to give a good return value. Alas not
-            %% %% all ftp implementations behave the same and returning
-            %% %% an error string is allowed by the FTP RFC.
-            %% case lists:dropwhile(fun(?CR) -> false;(_) -> true end,
-            %%                          binary_to_list(Data)) of
-            %%         L when (L =:= [?CR, ?LF]) orelse (L =:= []) ->
-            %%             _ = send_ctrl_message(State, mk_cmd("PWD", [])),
-            %%             activate_ctrl_connection(State),
-            %%             {noreply,
-            %%              State#state{caller = {handle_dir_data, Dir, Data}}};
-            %%         _ ->
-            %%             gen_server:reply(From, {ok, Data}),
-            %%             {noreply, State#state{client = undefined,
-            %%                                   caller = undefined}}
-            %% end
-            %% </WTF>
-            gen_server:reply(From, {ok, Data}),
-            {noreply, State#state{client = undefined,
-                                  caller = undefined}}
-    end;
+handle_ctrl_result({pos_compl, _}, #state{caller = {handle_dir_result, ""=_CurrentDir,
+                                                    Data}, client = From}= State) ->
+    gen_server:reply(From, {ok, Data}),
+    {noreply, State#state{client = undefined,
+                          caller = undefined}};
+
+handle_ctrl_result({pos_compl, _}, #state{caller = {handle_dir_result, _Dir,
+                                                    Data}, client = From}= State) ->
+    gen_server:reply(From, {ok, Data}),
+    {noreply, State#state{client = undefined,
+                          caller = undefined}};
 
 handle_ctrl_result({pos_compl, _}=Operation, #state{caller = {handle_dir_result, Dir},
                                                     data   = Data}= State) ->
-    %% operation completed. handle
     handle_ctrl_result(Operation, State#state{caller = {handle_dir_result, Dir, Data}});
 
-handle_ctrl_result({pos_compl, Lines},
-                   #state{caller = {handle_dir_data, Dir, DirData}} =
-                   State0) ->
-    OldDir = pwd_result(Lines),
-    _ = send_ctrl_message(State0, mk_cmd("CWD ~s", [Dir])),
-    State = activate_ctrl_connection(State0),
-    {noreply, State#state{caller = {handle_dir_data_second_phase, OldDir,
-                                    DirData}}};
-handle_ctrl_result({Status, _},
-                   #state{caller = {handle_dir_data, _, _}} = State) ->
-    ctrl_result_response(Status, State, {error, epath});
-
 handle_ctrl_result(S={_Status, _},
                    #state{caller = {handle_dir_result, _, _}} = State) ->
     %% OTP-5731, macosx
     ctrl_result_response(S, State, {error, epath});
 
-handle_ctrl_result({pos_compl, _},
-                   #state{caller = {handle_dir_data_second_phase, OldDir,
-                                    DirData}} = State0) ->
-    _ = send_ctrl_message(State0, mk_cmd("CWD ~s", [OldDir])),
-    State = activate_ctrl_connection(State0),
-    {noreply, State#state{caller = {handle_dir_data_third_phase, DirData}}};
-handle_ctrl_result({Status, _},
-                   #state{caller = {handle_dir_data_second_phase, _, _}}
-                   = State) ->
-    ctrl_result_response(Status, State, {error, epath});
-handle_ctrl_result(_, #state{caller = {handle_dir_data_third_phase, DirData},
-                             client = From} = State) ->
-    gen_server:reply(From, {ok, DirData}),
-    {noreply, State#state{client = undefined, caller = undefined}};
-
 handle_ctrl_result({Status, _}, #state{caller = cd} = State) ->
     ctrl_result_response(Status, State, {error, Status});
 
-- 
2.35.3

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