inets,tftp: Break out TFTP from inets

- Create directory structure
- Move code, tests, documentation from inets
- Add inets_tftp_wrapper
- Add tftp app to run-dialyzer script

Change-Id: I6a142ae66cecb9a1821cbf9ea6a45f66a836763d

1 files changed, 0 insertions, 949 deletions

diff --git a/lib/inets/test/tftp_SUITE.erl b/lib/inets/test/tftp_SUITE.erl
deleted file mode 100644
index 09049e36af..0000000000
--- a/lib/inets/test/tftp_SUITE.erl
+++ /dev/null
@@ -1,949 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 2006-2016. All Rights Reserved.
-%% 
-%% Licensed under the Apache License, Version 2.0 (the "License");
-%% you may not use this file except in compliance with the License.
-%% You may obtain a copy of the License at
-%%
-%%     http://www.apache.org/licenses/LICENSE-2.0
-%%
-%% Unless required by applicable law or agreed to in writing, software
-%% distributed under the License is distributed on an "AS IS" BASIS,
-%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-%% See the License for the specific language governing permissions and
-%% limitations under the License.
-%% 
-%% %CopyrightEnd%
-%%
-
--module(tftp_SUITE).
-
--compile(export_all).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Includes and defines
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
--include("tftp_test_lib.hrl").
-
--define(START_DAEMON(PortX, OptionsX),
-        fun(Port, Options) ->
-                {ok, Pid} = ?VERIFY({ok, _Pid}, tftp:start([{port, Port} | Options])),
-                if
-                    Port == 0 ->
-                        {ok, ActualOptions} = ?IGNORE(tftp:info(Pid)),
-                        {value, {port, ActualPort}} =
-                            lists:keysearch(port, 1, ActualOptions),
-                        {ActualPort, Pid};
-                    true ->
-                        {Port, Pid}
-                end
-        end(PortX, OptionsX)).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% API
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-t() -> 
-    tftp_test_lib:t([{?MODULE, all}]).
-
-t(Cases) ->
-    tftp_test_lib:t(Cases, default_config()).
-
-t(Cases, Config) ->
-    tftp_test_lib:t(Cases, Config).
-
-default_config() ->
-    [].
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Test server callbacks
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-init_per_testcase(Case, Config) ->
-    tftp_test_lib:init_per_testcase(Case, Config).
-
-end_per_testcase(Case, Config) when is_list(Config) ->
-    tftp_test_lib:end_per_testcase(Case, Config).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Top test case
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-suite() -> [{ct_hooks,[ts_install_cth]}].
-
-all() -> 
-    [simple, extra, reuse_connection, resend_client,
-     resend_server, large_file].
-
-groups() -> 
-    [].
-
-init_per_suite(Config) ->
-    Config.
-
-end_per_suite(_Config) ->
-    ok.
-
-init_per_group(_GroupName, Config) ->
-    Config.
-
-end_per_group(_GroupName, Config) ->
-    Config.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Simple
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-simple(doc) ->
-    ["Start the daemon and perform simple a read and write."];
-simple(suite) ->
-    [];
-simple(Config) when is_list(Config) ->
-    ?VERIFY(ok, application:start(inets)),
-
-    {Port, DaemonPid} = ?IGNORE(?START_DAEMON(0, [{debug, brief}])),
-
-    %% Read fail
-    RemoteFilename = "tftp_temporary_remote_test_file.txt",
-    LocalFilename = "tftp_temporary_local_test_file.txt",
-    Blob = list_to_binary(lists:duplicate(2000, $1)),
-    %% Blob = <<"Some file contents\n">>,
-    Size = size(Blob),
-    ?IGNORE(file:delete(RemoteFilename)),
-    ?VERIFY({error, {client_open, enoent, _}},
-            tftp:read_file(RemoteFilename, binary, [{port, Port}])),
-    
-    %% Write and read
-    ?VERIFY({ok, Size}, tftp:write_file(RemoteFilename, Blob, [{port, Port}])),
-    ?VERIFY({ok, Blob}, tftp:read_file(RemoteFilename, binary, [{port, Port}])),
-    ?IGNORE(file:delete(LocalFilename)),
-    ?VERIFY({ok, Size}, tftp:read_file(RemoteFilename, LocalFilename, [{port, Port}])),
-
-    %% Cleanup
-    unlink(DaemonPid),
-    exit(DaemonPid, kill),
-    ?VERIFY(ok, file:delete(LocalFilename)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-    ?VERIFY(ok, application:stop(inets)),
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Extra
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-extra(doc) ->
-    ["Verify new stuff for IS 1.2."];
-extra(suite) ->
-    [];
-extra(Config) when is_list(Config) ->
-    ?VERIFY({'EXIT', {badarg,{fake_key, fake_flag}}},
-            tftp:start([{port, 0}, {fake_key, fake_flag}])),
-
-    {Port, DaemonPid} = ?IGNORE(?START_DAEMON(0, [{debug, brief}])),
-    
-    RemoteFilename = "tftp_extra_temporary_remote_test_file.txt",
-    LocalFilename = "tftp_extra_temporary_local_test_file.txt",
-    Blob = <<"Some file contents\n">>,
-    Size = size(Blob),
-    Host = "127.0.0.1",
-    Peer = {inet, Host, Port},
-    Generic =
-        [
-         {state,   []},
-         {prepare, fun extra_prepare/6},
-         {open,    fun extra_open/6},
-         {read,    fun extra_read/1},
-         {write,   fun extra_write/2},
-         {abort,   fun extra_abort/3 }
-        ],
-    Options = [{host, Host},
-               {port, Port},
-               %%{ debug,all},
-               {callback, {".*", tftp_test_lib, Generic}}],
-    ?VERIFY(ok, file:write_file(LocalFilename, Blob)),
-    ?VERIFY({ok, [{count, Size}, Peer]},
-            tftp:write_file(RemoteFilename, LocalFilename, Options)),
-    ?VERIFY(ok, file:delete(LocalFilename)),
-    
-    ?VERIFY({ok,[{bin, Blob}, Peer]}, 
-            tftp:read_file(RemoteFilename, LocalFilename, Options)),
-
-    %% Cleanup
-    unlink(DaemonPid),
-    exit(DaemonPid, kill),
-    ?VERIFY(ok, file:delete(LocalFilename)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-    ok.
-
--record(extra_state,  {file, blksize, count, acc, peer}).
-
-%%-------------------------------------------------------------------
-%% Prepare
-%%-------------------------------------------------------------------
-
-extra_prepare(Peer, Access, LocalFilename, Mode, SuggestedOptions, []) ->
-    %% Client side
-    BlkSize = list_to_integer(tftp_test_lib:lookup_option("blksize", "512", SuggestedOptions)),
-    State = #extra_state{blksize = BlkSize, peer = Peer},
-    extra_open(Peer, Access, LocalFilename, Mode, SuggestedOptions, State),
-    {ok, SuggestedOptions, State};
-extra_prepare(_Peer, _Access, _Bin, _Mode, _SuggestedOptions, _Initial) ->
-    {error, {undef, "Illegal callback options."}}.
-
-%%-------------------------------------------------------------------
-%% Open
-%%-------------------------------------------------------------------
-
-extra_open(Peer, Access, LocalFilename, Mode, SuggestedOptions, []) ->
-    %% Server side
-    case extra_prepare(Peer, Access, LocalFilename, Mode, SuggestedOptions, []) of
-        {ok, AcceptedOptions, []} ->
-            BlkSize = list_to_integer(tftp_test_lib:lookup_option("blksize", "512", AcceptedOptions)),
-            State = #extra_state{blksize = BlkSize, peer = Peer},
-            extra_open(Peer, Access, LocalFilename, Mode, AcceptedOptions, State);
-        {error, {Code, Text}} ->
-            {error, {Code, Text}}
-    end;
-extra_open(_Peer, Access, LocalFilename, _Mode, NegotiatedOptions, #extra_state{} = State) ->
-    {File, Acc} =
-        case Access of
-            read ->
-                if
-                    is_binary(LocalFilename) ->
-                        {undefined, LocalFilename};
-                    is_list(LocalFilename) ->
-                        {ok, Bin} = file:read_file(LocalFilename),
-                        {LocalFilename, Bin}
-            end;
-            write -> 
-                {LocalFilename, []}
-        end,
-    %% Both sides
-    State2 = State#extra_state{file = File, acc = Acc, count = 0},
-    {ok, NegotiatedOptions, State2}.
-
-%%-------------------------------------------------------------------
-%% Read
-%%-------------------------------------------------------------------
-
-extra_read(#extra_state{acc = Bin} = State) when is_binary(Bin) ->
-    BlkSize = State#extra_state.blksize,
-    Count = State#extra_state.count + size(Bin),
-    if
-        size(Bin) >= BlkSize ->
-            <<Block:BlkSize/binary, Bin2/binary>> = Bin,
-            State2 = State#extra_state{acc = Bin2, count = Count},
-            {more, Block, State2};
-        size(Bin) < BlkSize ->
-            Res = [{count, Count}, State#extra_state.peer],
-            {last, Bin, Res}
-    end.
-
-%%-------------------------------------------------------------------
-%% Write
-%%-------------------------------------------------------------------
-
-extra_write(Bin, #extra_state{acc = List} = State) when is_binary(Bin), is_list(List) ->
-    Size = size(Bin),
-    BlkSize = State#extra_state.blksize,
-    if
-        Size == BlkSize ->
-            {more, State#extra_state{acc = [Bin | List]}};
-        Size < BlkSize ->
-            Bin2 = list_to_binary(lists:reverse([Bin | List])),
-            Res = [{bin,  Bin2}, State#extra_state.peer],
-            file:write_file(State#extra_state.file, Bin2),
-            {last, Res}
-    end.
-
-%%-------------------------------------------------------------------
-%% Abort
-%%-------------------------------------------------------------------
-
-extra_abort(_Code, _Text, #extra_state{}) ->
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Re-send client
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-resend_client(doc) ->
-    ["Verify that the server behaves correctly when the client re-sends packets."];
-resend_client(suite) ->
-    [];
-resend_client(Config) when is_list(Config) ->
-    Host = {127, 0, 0, 1},
-    {Port, DaemonPid} = ?IGNORE(?START_DAEMON(0, [{debug, all}])),
-
-    ?VERIFY(ok, resend_read_client(Host, Port, 10)),
-    ?VERIFY(ok, resend_read_client(Host, Port, 512)),
-    ?VERIFY(ok, resend_read_client(Host, Port, 1025)),
-
-    ?VERIFY(ok, resend_write_client(Host, Port, 10)),
-    ?VERIFY(ok, resend_write_client(Host, Port, 512)),
-    ?VERIFY(ok, resend_write_client(Host, Port, 1025)),
-    
-    %% Cleanup
-    unlink(DaemonPid),
-    exit(DaemonPid, kill),
-    ok.
-
-resend_read_client(Host, Port, BlkSize) ->
-    RemoteFilename = "tftp_resend_read_client.tmp",
-    Block1 = lists:duplicate(BlkSize, $1),
-    Block2 = lists:duplicate(BlkSize, $2),
-    Block3 = lists:duplicate(BlkSize, $3),
-    Block4 = lists:duplicate(BlkSize, $4),
-    Block5 = lists:duplicate(BlkSize, $5),
-    Blocks = [Block1, Block2, Block3, Block4, Block5],
-    Blob = list_to_binary(Blocks),
-    ?VERIFY(ok, file:write_file(RemoteFilename, Blob)),
-
-    Timeout = timer:seconds(3),
-    ?VERIFY(timeout, recv(0)),
-
-    %% Open socket
-    {ok, Socket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-
-    ReadList = [0, 1, RemoteFilename, 0, "octet", 0],
-    Data1Bin = list_to_binary([0, 3, 0, 1 | Block1]),
-    NewPort =
-        if
-            BlkSize =:= 512 ->
-                %% Send READ
-                ReadBin = list_to_binary(ReadList),
-                ?VERIFY(ok, gen_udp:send(Socket, Host, Port, ReadBin)),
-
-                %% Sleep a while in order to provoke the server to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv DATA #1 (the packet that the server think that we have lost)
-                {udp, _, _, NewPort0, _} = ?VERIFY({udp, Socket, Host, _, Data1Bin}, recv(Timeout)),
-                NewPort0;
-            true ->
-                %% Send READ
-                BlkSizeList = integer_to_list(BlkSize),
-                Options = ["blksize", 0, BlkSizeList, 0],
-                ReadBin = list_to_binary([ReadList | Options]),
-                ?VERIFY(ok, gen_udp:send(Socket, Host, Port, ReadBin)),
-
-                %% Recv OACK
-                OptionAckBin = list_to_binary([0, 6 | Options]),
-                {udp, _, _, NewPort0, _} = ?VERIFY({udp, Socket, Host, _, OptionAckBin}, recv(Timeout)),
-
-                %% Send ACK #0
-                Ack0Bin = <<0, 4, 0, 0>>,
-                ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort0, Ack0Bin)),
-
-                %% Send ACK #0 AGAIN (pretend that we timed out)
-                timer:sleep(timer:seconds(1)),
-                ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort0, Ack0Bin)),
-
-                %% Recv DATA #1 (the packet that the server think that we have lost)
-                ?VERIFY({udp, Socket, Host, NewPort0, Data1Bin}, recv(Timeout)),
-                NewPort0
-        end,
-
-    %% Recv DATA #1 AGAIN (the re-sent package)
-    ?VERIFY({udp, Socket, Host, NewPort, Data1Bin}, recv(Timeout)),
-
-    %% Send ACK #1
-    Ack1Bin = <<0, 4, 0, 1>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack1Bin)),
-
-    %% Recv DATA #2
-    Data2Bin = list_to_binary([0, 3, 0, 2 | Block2]),
-    ?VERIFY({udp, Socket, Host, NewPort, Data2Bin}, recv(Timeout)),
-
-    %% Send ACK #2
-    Ack2Bin = <<0, 4, 0, 2>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack2Bin)),
-
-    %% Recv DATA #3
-    Data3Bin = list_to_binary([0, 3, 0, 3 | Block3]),
-    ?VERIFY({udp, Socket, Host, NewPort, Data3Bin}, recv(Timeout)),
-
-    %% Send ACK #3
-    Ack3Bin = <<0, 4, 0, 3>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack3Bin)),
-
-    %% Send ACK #3 AGAIN (pretend that we timed out)
-    timer:sleep(timer:seconds(1)),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack3Bin)),
-
-    %% Recv DATA #4 (the packet that the server think that we have lost)
-    Data4Bin = list_to_binary([0, 3, 0, 4 | Block4]),
-    ?VERIFY({udp, Socket, Host, NewPort, Data4Bin}, recv(Timeout)),
-
-    %% Recv DATA #4 AGAIN (the re-sent package)
-    ?VERIFY({udp, Socket, Host, NewPort, Data4Bin}, recv(Timeout)),
-
-    %% Send ACK #2 which is out of range
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack2Bin)),
-
-    %% Send ACK #4
-    Ack4Bin = <<0, 4, 0, 4>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack4Bin)),
-
-    %% Recv DATA #5
-    Data5Bin = list_to_binary([0, 3, 0, 5 | Block5]),
-    ?VERIFY({udp, Socket, Host, NewPort, Data5Bin}, recv(Timeout)),
-
-    %% Send ACK #5
-    Ack5Bin = <<0, 4, 0, 5>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack5Bin)),
-
-    %% Close socket
-    ?VERIFY(ok, gen_udp:close(Socket)),
-
-    ?VERIFY(timeout, recv(Timeout)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-    ok.
-
-resend_write_client(Host, Port, BlkSize) ->
-    RemoteFilename = "tftp_resend_write_client.tmp",
-    Block1 = lists:duplicate(BlkSize, $1),
-    Block2 = lists:duplicate(BlkSize, $2),
-    Block3 = lists:duplicate(BlkSize, $3),
-    Block4 = lists:duplicate(BlkSize, $4),
-    Block5 = lists:duplicate(BlkSize, $5),
-    Blocks = [Block1, Block2, Block3, Block4, Block5],
-    Blob = list_to_binary(Blocks),
-    ?IGNORE(file:delete(RemoteFilename)),
-    ?VERIFY({error, enoent}, file:read_file(RemoteFilename)),
-
-    Timeout = timer:seconds(3),
-    ?VERIFY(timeout, recv(0)),
-
-    %% Open socket
-    {ok, Socket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-
-    WriteList = [0, 2, RemoteFilename, 0, "octet", 0],
-    NewPort =
-        if
-            BlkSize =:= 512 ->
-                %% Send WRITE
-                WriteBin = list_to_binary(WriteList),
-                ?VERIFY(ok,  gen_udp:send(Socket, Host, Port, WriteBin)),
-
-                %% Sleep a while in order to provoke the server to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv ACK #0 (the packet that the server think that we have lost)
-                Ack0Bin = <<0, 4, 0, 0>>,
-                ?VERIFY({udp, Socket, Host, _, Ack0Bin}, recv(Timeout)),
-
-                %% Recv ACK #0  AGAIN (the re-sent package)
-                {udp, _, _, NewPort0, _} = ?VERIFY({udp, Socket, Host, _, Ack0Bin}, recv(Timeout)),
-                NewPort0;
-            true ->
-                %% Send WRITE
-                BlkSizeList = integer_to_list(BlkSize),
-                WriteBin = list_to_binary([WriteList, "blksize", 0, BlkSizeList, 0]),
-                ?VERIFY(ok,  gen_udp:send(Socket, Host, Port, WriteBin)),
-
-                %% Sleep a while in order to provoke the server to re-send the packet
-                timer:sleep(timer:seconds(1)),
-
-                %% Recv OACK (the packet that the server think that we have lost)
-                OptionAckBin = list_to_binary([0, 6, "blksize",0, BlkSizeList, 0]),
-                ?VERIFY({udp, Socket, Host, _, OptionAckBin}, recv(Timeout)),
-                
-                %% Recv OACK AGAIN (the re-sent package)
-                {udp, _, _, NewPort0, _} = ?VERIFY({udp, Socket, Host, _, OptionAckBin}, recv(Timeout)),
-                NewPort0
-        end,
-
-    %% Send DATA #1
-    Data1Bin = list_to_binary([0, 3, 0, 1 | Block1]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data1Bin)),
-
-    %% Recv ACK #1 
-    Ack1Bin = <<0, 4, 0, 1>>,
-    ?VERIFY({udp, Socket, Host, NewPort, Ack1Bin}, recv(Timeout)),
-
-    %% Send DATA #2
-    Data2Bin = list_to_binary([0, 3, 0, 2 | Block2]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data2Bin)),
-
-    %% Recv ACK #2
-    Ack2Bin = <<0, 4, 0, 2>>,
-    ?VERIFY({udp, Socket, Host, NewPort, Ack2Bin}, recv(Timeout)),
-
-    %% Send DATA #3
-    Data3Bin = list_to_binary([0, 3, 0, 3 | Block3]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data3Bin)),
-
-    %% Recv ACK #3
-    Ack3Bin = <<0, 4, 0, 3>>,
-    ?VERIFY({udp, Socket, Host, NewPort, Ack3Bin}, recv(Timeout)),
-
-    %% Send DATA #3 AGAIN (pretend that we timed out)
-    timer:sleep(timer:seconds(1)),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data3Bin)),
-
-    %% Recv ACK #3 AGAIN (the packet that the server think that we have lost)
-    ?VERIFY({udp, Socket, Host, NewPort, Ack3Bin}, recv(Timeout)),
-
-    %% Send DATA #2 which is out of range
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data2Bin)),
-
-    %% Send DATA #4
-    Data4Bin = list_to_binary([0, 3, 0, 4 | Block4]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data4Bin)),
-
-    %% Recv ACK #4
-    Ack4Bin = <<0, 4, 0, 4>>,
-    ?VERIFY({udp, Socket, Host, NewPort, Ack4Bin}, recv(Timeout)),
-
-    %% Send DATA #5
-    Data5Bin = list_to_binary([0, 3, 0, 5 | Block5]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Data5Bin)),
-
-    %% Recv ACK #5
-    Ack5Bin = <<0, 4, 0, 5>>,
-    ?VERIFY({udp, Socket, Host, NewPort, Ack5Bin}, recv(Timeout)),
-
-    %% Close socket
-    ?VERIFY(ok, gen_udp:close(Socket)),
-
-    ?VERIFY(timeout, recv(Timeout)),
-    ?VERIFY({ok, Blob}, file:read_file(RemoteFilename)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Re-send server
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-resend_server(doc) ->
-    ["Verify that the server behaves correctly when the server re-sends packets."];
-resend_server(suite) ->
-    [];
-resend_server(Config) when is_list(Config) ->
-    Host = {127, 0, 0, 1},
-
-    ?VERIFY(ok, resend_read_server(Host, 10)),
-    ?VERIFY(ok, resend_read_server(Host, 512)),
-    ?VERIFY(ok, resend_read_server(Host, 1025)),
-    
-    ?VERIFY(ok, resend_write_server(Host, 10)),
-    ?VERIFY(ok, resend_write_server(Host, 512)),
-    ?VERIFY(ok, resend_write_server(Host, 1025)),
-    ok.
-
-resend_read_server(Host, BlkSize) ->
-    RemoteFilename = "tftp_resend_read_server.tmp",
-    Block1 = lists:duplicate(BlkSize, $1),
-    Block2 = lists:duplicate(BlkSize, $2),
-    Block3 = lists:duplicate(BlkSize, $3),
-    Block4 = lists:duplicate(BlkSize, $4),
-    Block5 = lists:duplicate(BlkSize, $5),
-    Block6 = [],
-    Blocks = [Block1, Block2, Block3, Block4, Block5, Block6],
-    Blob = list_to_binary(Blocks),
-
-    Timeout = timer:seconds(3),
-    ?VERIFY(timeout, recv(0)),
-
-    %% Open daemon socket
-    {ok, DaemonSocket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-    {ok, DaemonPort} = ?IGNORE(inet:port(DaemonSocket)),
-
-    %% Open server socket
-    {ok, ServerSocket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-    ?IGNORE(inet:port(ServerSocket)),
-
-    %% Prepare client process
-    ReplyTo = self(),
-    ClientFun =
-        fun(Extra) ->
-                Options = [{port, DaemonPort}, {debug, brief}] ++ Extra,
-                Res = ?VERIFY({ok, Blob}, tftp:read_file(RemoteFilename, binary, Options)),
-                ReplyTo ! {self(), {tftp_client_reply, Res}},
-                exit(normal)
-        end,
-
-    ReadList = [0, 1, RemoteFilename, 0, "octet", 0],
-    Data1Bin = list_to_binary([0, 3, 0, 1 | Block1]),
-    Ack1Bin = <<0, 4, 0, 1>>,
-    {ClientPort, ClientPid} =
-        if
-            BlkSize =:= 512 ->
-                %% Start client process
-                ClientPid0 = spawn_link(fun() -> ClientFun([]) end),
-
-                %% Recv READ
-                ReadBin = list_to_binary(ReadList),
-                {udp, _, _, ClientPort0, _} = ?VERIFY({udp, DaemonSocket, Host, _, ReadBin}, recv(Timeout)),
-
-                %% Send DATA #1
-                ?VERIFY(ok,  gen_udp:send(ServerSocket, Host, ClientPort0, Data1Bin)),
-
-                %% Sleep a while in order to provoke the client to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv ACK #1 (the packet that the server think that we have lost)
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Ack1Bin}, recv(Timeout)),
-
-                %% Recv ACK #1 AGAIN (the re-sent package)
-                ?VERIFY({udp, ServerSocket, Host, _, Ack1Bin}, recv(Timeout)),
-                {ClientPort0, ClientPid0};
-            true ->
-                %% Start client process
-                BlkSizeList = integer_to_list(BlkSize),
-                ClientPid0 = spawn_link(fun() -> ClientFun([{"blksize", BlkSizeList}]) end),
-                
-                %% Recv READ
-                Options = ["blksize", 0, BlkSizeList, 0],
-                ReadBin = list_to_binary([ReadList | Options]),
-                {udp, _, _, ClientPort0, _} = ?VERIFY({udp, DaemonSocket, Host, _, ReadBin}, recv(Timeout)),
-
-                %% Send OACK
-                BlkSizeList = integer_to_list(BlkSize),
-                OptionAckBin = list_to_binary([0, 6, "blksize",0, BlkSizeList, 0]),
-                ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort0, OptionAckBin)),
-
-                %% Sleep a while in order to provoke the client to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv ACK #0 (the packet that the server think that we have lost)
-                Ack0Bin = <<0, 4, 0, 0>>,
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Ack0Bin}, recv(Timeout)),
-
-                %% Recv ACK #0 AGAIN (the re-sent package)
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Ack0Bin}, recv(Timeout)),
-
-                %% Send DATA #1
-                ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort0, Data1Bin)),
-
-                %% Recv ACK #1
-                ?VERIFY({udp, ServerSocket, Host, _, Ack1Bin}, recv(Timeout)),
-                {ClientPort0, ClientPid0}
-        end,
-
-    %% Send DATA #2
-    Data2Bin = list_to_binary([0, 3, 0, 2 | Block2]),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data2Bin)),
-
-    %% Recv ACK #2
-    Ack2Bin = <<0, 4, 0, 2>>,
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Ack2Bin}, recv(Timeout)),
-
-    %% Send DATA #3
-    Data3Bin = list_to_binary([0, 3, 0, 3 | Block3]),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data3Bin)),
-
-    %% Recv ACK #3
-    Ack3Bin = <<0, 4, 0, 3>>,
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Ack3Bin}, recv(Timeout)),
-
-    %% Send DATA #3 AGAIN (pretend that we timed out)
-    timer:sleep(timer:seconds(1)),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data3Bin)),
-
-    %% Recv ACK #3 AGAIN (the packet that the server think that we have lost)
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Ack3Bin}, recv(Timeout)),
-
-    %% Send DATA #4
-    Data4Bin = list_to_binary([0, 3, 0, 4 | Block4]),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data4Bin)),
-
-    %% Recv ACK #4
-    Ack4Bin = <<0, 4, 0, 4>>,
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Ack4Bin}, recv(Timeout)),
-
-    %% Send DATA #3 which is out of range
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data3Bin)),
-
-    %% Send DATA #5
-    Data5Bin = list_to_binary([0, 3, 0, 5 | Block5]),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data5Bin)),
-
-    %% Recv ACK #5
-    Ack5Bin = <<0, 4, 0, 5>>,
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Ack5Bin}, recv(Timeout)),
-
-    %% Send DATA #6
-    Data6Bin = list_to_binary([0, 3, 0, 6 | Block6]),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Data6Bin)),
-
-    %% Close daemon and server sockets
-    ?VERIFY(ok, gen_udp:close(ServerSocket)),
-    ?VERIFY(ok, gen_udp:close(DaemonSocket)),
-
-    ?VERIFY({ClientPid, {tftp_client_reply, {ok, Blob}}}, recv(Timeout)),
-
-    ?VERIFY(timeout, recv(Timeout)),
-    ok.
-
-resend_write_server(Host, BlkSize) ->
-    RemoteFilename = "tftp_resend_write_server.tmp",
-    Block1 = lists:duplicate(BlkSize, $1),
-    Block2 = lists:duplicate(BlkSize, $2),
-    Block3 = lists:duplicate(BlkSize, $3),
-    Block4 = lists:duplicate(BlkSize, $4),
-    Block5 = lists:duplicate(BlkSize, $5),
-    Block6 = [],
-    Blocks = [Block1, Block2, Block3, Block4, Block5, Block6],
-    Blob = list_to_binary(Blocks),
-    Size = size(Blob),
-
-    Timeout = timer:seconds(3),
-    ?VERIFY(timeout, recv(0)),
-
-    %% Open daemon socket
-    {ok, DaemonSocket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-    {ok, DaemonPort} = ?IGNORE(inet:port(DaemonSocket)),
-
-    %% Open server socket
-    {ok, ServerSocket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-    ?IGNORE(inet:port(ServerSocket)),
-
-    %% Prepare client process
-    ReplyTo = self(),
-    ClientFun =
-        fun(Extra) ->
-                Options = [{port, DaemonPort}, {debug, brief}] ++ Extra,
-                Res = ?VERIFY({ok, Size}, tftp:write_file(RemoteFilename, Blob, Options)),
-                ReplyTo ! {self(), {tftp_client_reply, Res}},
-                exit(normal)
-        end,
-
-    WriteList = [0, 2, RemoteFilename, 0, "octet", 0],
-    Data1Bin = list_to_binary([0, 3, 0, 1 | Block1]),
-    {ClientPort, ClientPid} =
-        if
-            BlkSize =:= 512 ->
-                %% Start client process
-                ClientPid0 = spawn_link(fun() -> ClientFun([]) end),
-
-                %% Recv WRITE
-                WriteBin = list_to_binary(WriteList),
-                io:format("WriteBin ~p\n", [WriteBin]),
-                {udp, _, _, ClientPort0, _} = ?VERIFY({udp, DaemonSocket, Host, _, WriteBin}, recv(Timeout)),
-
-                %% Send ACK #1
-                Ack0Bin = <<0, 4, 0, 0>>,
-                ?VERIFY(ok,  gen_udp:send(ServerSocket, Host, ClientPort0, Ack0Bin)),
-
-                %% Sleep a while in order to provoke the client to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv DATA #1 (the packet that the server think that we have lost)
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Data1Bin}, recv(Timeout)),
-
-                %% Recv DATA #1 AGAIN (the re-sent package)
-                ?VERIFY({udp, ServerSocket, Host, _, Data1Bin}, recv(Timeout)),
-                {ClientPort0, ClientPid0};
-            true ->
-                %% Start client process
-                BlkSizeList = integer_to_list(BlkSize),
-                ClientPid0 = spawn_link(fun() -> ClientFun([{"blksize", BlkSizeList}]) end),
-                
-                %% Recv WRITE
-                Options = ["blksize", 0, BlkSizeList, 0],
-                WriteBin = list_to_binary([WriteList | Options]),
-                {udp, _, _, ClientPort0, _} = ?VERIFY({udp, DaemonSocket, Host, _, WriteBin}, recv(Timeout)),
-
-                %% Send OACK
-                BlkSizeList = integer_to_list(BlkSize),
-                OptionAckBin = list_to_binary([0, 6, "blksize",0, BlkSizeList, 0]),
-                ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort0, OptionAckBin)),
-
-                %% Sleep a while in order to provoke the client to re-send the packet
-                timer:sleep(Timeout + timer:seconds(1)),
-
-                %% Recv DATA #1 (the packet that the server think that we have lost)
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Data1Bin}, recv(Timeout)),
-
-                %% Recv DATA #1 AGAIN (the re-sent package)
-                ?VERIFY({udp, ServerSocket, Host, ClientPort0, Data1Bin}, recv(Timeout)),
-                {ClientPort0, ClientPid0}
-        end,
-
-    %% Send ACK #1
-    Ack1Bin = <<0, 4, 0, 1>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack1Bin)),
-
-    %% Recv DATA #2
-    Data2Bin = list_to_binary([0, 3, 0, 2 | Block2]),
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data2Bin}, recv(Timeout)),
-
-    %% Send ACK #2
-    Ack2Bin = <<0, 4, 0, 2>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack2Bin)),
-
-    %% Recv DATA #3
-    Data3Bin = list_to_binary([0, 3, 0, 3 | Block3]),
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data3Bin}, recv(Timeout)),
-
-    %% Send ACK #3
-    Ack3Bin = <<0, 4, 0, 3>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack3Bin)),
-
-    %% Send ACK #3 AGAIN (pretend that we timed out)
-    timer:sleep(timer:seconds(1)),
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack3Bin)),
-
-    %% Recv DATA #4 (the packet that the server think that we have lost)
-    Data4Bin = list_to_binary([0, 3, 0, 4 | Block4]),
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data4Bin}, recv(Timeout)),
-
-    %% Recv DATA #4 AGAIN (the re-sent package)
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data4Bin}, recv(Timeout)),
-
-    %% Send ACK #4
-    Ack4Bin = <<0, 4, 0, 4>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack4Bin)),
-
-    %% Recv DATA #5
-    Data5Bin = list_to_binary([0, 3, 0, 5 | Block5]),
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data5Bin}, recv(Timeout)),
-
-    %% Send ACK #3 which is out of range
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack3Bin)),
-
-    %% Send ACK #5
-    Ack5Bin = <<0, 4, 0, 5>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack5Bin)),
-
-    %% Recv DATA #6
-    Data6Bin = list_to_binary([0, 3, 0, 6 | Block6]),
-    ?VERIFY({udp, ServerSocket, Host, ClientPort, Data6Bin}, recv(Timeout)),
-
-    %% Send ACK #6
-    Ack6Bin = <<0, 4, 0, 6>>,
-    ?VERIFY(ok, gen_udp:send(ServerSocket, Host, ClientPort, Ack6Bin)),
-
-    %% Close daemon and server sockets
-    ?VERIFY(ok, gen_udp:close(ServerSocket)),
-    ?VERIFY(ok, gen_udp:close(DaemonSocket)),
-
-    ?VERIFY({ClientPid, {tftp_client_reply, {ok, Size}}}, recv(Timeout)),
-
-    ?VERIFY(timeout, recv(Timeout)),
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-reuse_connection(doc) ->
-    ["Verify that the server can reuse an ongiong connection when same client resends request."];
-reuse_connection(suite) ->
-    [];
-reuse_connection(Config) when is_list(Config) ->
-    Host = {127, 0, 0, 1},
-    {Port, DaemonPid} = ?IGNORE(?START_DAEMON(0, [{debug, all}])),
-
-    RemoteFilename = "reuse_connection.tmp",
-    BlkSize = 512,
-    Block1 = lists:duplicate(BlkSize, $1),
-    Block2 = lists:duplicate(BlkSize div 2, $2),
-    Blocks = [Block1, Block2],
-    Blob = list_to_binary(Blocks),
-    ?VERIFY(ok, file:write_file(RemoteFilename, Blob)),
-    
-    Seconds = 3,
-    Timeout = timer:seconds(Seconds),
-    ?VERIFY(timeout, recv(0)),
-    
-    %% Open socket
-    {ok, Socket} = ?VERIFY({ok, _}, gen_udp:open(0, [binary, {reuseaddr, true}, {active, true}])),
-    
-    ReadList = [0, 1, RemoteFilename, 0, "octet", 0],
-    Data1Bin = list_to_binary([0, 3, 0, 1 | Block1]),
-    
-    %% Send READ
-    TimeoutList = integer_to_list(Seconds),
-    Options = ["timeout", 0, TimeoutList, 0],
-    ReadBin = list_to_binary([ReadList | Options]),
-    ?VERIFY(ok, gen_udp:send(Socket, Host, Port, ReadBin)),
-
-    %% Send yet another READ for same file
-    ?VERIFY(ok, gen_udp:send(Socket, Host, Port, ReadBin)),
-
-    %% Recv OACK
-    OptionAckBin = list_to_binary([0, 6 | Options]),
-    {udp, _, _, NewPort, _} = ?VERIFY({udp, Socket, Host, _, OptionAckBin}, recv(Timeout)),
-
-    %% Send ACK #0
-    Ack0Bin = <<0, 4, 0, 0>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack0Bin)),
-
-    %% Recv DATA #1
-    ?VERIFY({udp, Socket, Host, NewPort, Data1Bin}, recv(Timeout)),
-
-    %% Send ACK #1
-    Ack1Bin = <<0, 4, 0, 1>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack1Bin)),
-
-    %% Recv DATA #2
-    Data2Bin = list_to_binary([0, 3, 0, 2 | Block2]),
-    ?VERIFY({udp, Socket, Host, NewPort, Data2Bin}, recv(Timeout)),
-
-    %% Send ACK #2
-    Ack2Bin = <<0, 4, 0, 2>>,
-    ?VERIFY(ok, gen_udp:send(Socket, Host, NewPort, Ack2Bin)),
-
-    %% Close socket
-    ?VERIFY(ok, gen_udp:close(Socket)),
-
-    ?VERIFY(timeout, recv(Timeout)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-
-    %% Cleanup
-    unlink(DaemonPid),
-    exit(DaemonPid, kill),
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Large file: transfer > 65535 blocks
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-large_file(doc) ->
-    ["Start the daemon and test transfer of files greater than 32M."];
-large_file(suite) ->
-    [];
-large_file(Config) when is_list(Config) ->
-    ?VERIFY(ok, application:start(inets)),
-
-    {Port, DaemonPid} = ?IGNORE(?START_DAEMON(0, [{debug, brief}])),
-
-    %% Read fail
-    RemoteFilename = "tftp_temporary_large_file_remote_test_file.txt",
-    LocalFilename = "tftp_temporary_large_file_local_test_file.txt",
-
-    {ok, FH} = file:open(LocalFilename, [write,exclusive]),
-    {ok, Size} = file:position(FH, {eof, 2*512*65535}),
-    ok = file:truncate(FH),
-    ?IGNORE(file:close(FH)),
-
-    %% Write and read
-    ?VERIFY({ok, Size}, tftp:write_file(RemoteFilename, LocalFilename, [{port, Port}])),
-    ?IGNORE(file:delete(LocalFilename)),
-    ?VERIFY({ok, Size}, tftp:read_file(RemoteFilename, LocalFilename, [{port, Port}])),
-
-    %% Cleanup
-    unlink(DaemonPid),
-    exit(DaemonPid, kill),
-    ?VERIFY(ok, file:delete(LocalFilename)),
-    ?VERIFY(ok, file:delete(RemoteFilename)),
-    ?VERIFY(ok, application:stop(inets)),
-    ok.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Goodies
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-recv(Timeout) ->
-    receive
-        Msg ->
-            Msg
-    after Timeout ->
-            timeout
-    end.