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Diffstat (limited to 'lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/ftp.erl')
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1 files changed, 1582 insertions, 0 deletions
diff --git a/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/ftp.erl b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/ftp.erl new file mode 100644 index 0000000000..be06ec654c --- /dev/null +++ b/lib/dialyzer/test/r9c_tests_SUITE_data/src/inets/ftp.erl @@ -0,0 +1,1582 @@ +%% ``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 +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved via the world wide web at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% The Initial Developer of the Original Code is Ericsson Utvecklings AB. +%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings +%% AB. All Rights Reserved.'' +%% +%% $Id: ftp.erl,v 1.2 2009/03/03 01:55:01 kostis Exp $ +%% +-module(ftp). + +-behaviour(gen_server). + +%% This module implements an ftp client based on socket(3)/gen_tcp(3), +%% file(3) and filename(3). +%% + + +-define(OPEN_TIMEOUT, 60*1000). +-define(BYTE_TIMEOUT, 1000). % Timeout for _ONE_ byte to arrive. (ms) +-define(OPER_TIMEOUT, 300). % Operation timeout (seconds) +-define(FTP_PORT, 21). + +%% Client interface +-export([cd/2, close/1, delete/2, formaterror/1, help/0, + lcd/2, lpwd/1, ls/1, ls/2, + mkdir/2, nlist/1, nlist/2, + open/1, open/2, open/3, + pwd/1, + recv/2, recv/3, recv_bin/2, + recv_chunk_start/2, recv_chunk/1, + rename/3, rmdir/2, + send/2, send/3, send_bin/3, + send_chunk_start/2, send_chunk/2, send_chunk_end/1, + type/2, user/3,user/4,account/2, + append/3, append/2, append_bin/3, + append_chunk/2, append_chunk_end/1, append_chunk_start/2]). + +%% Internal +-export([init/1, handle_call/3, handle_cast/2, + handle_info/2, terminate/2,code_change/3]). + + +%% +%% CLIENT FUNCTIONS +%% + +%% open(Host) +%% open(Host, Flags) +%% +%% Purpose: Start an ftp client and connect to a host. +%% Args: Host = string(), +%% Port = integer(), +%% Flags = [Flag], +%% Flag = verbose | debug +%% Returns: {ok, Pid} | {error, ehost} + +%%Tho only option was the host in textual form +open({option_list,Option_list})-> + %% Dbg = {debug,[trace,log,statistics]}, + %% Options = [Dbg], + Options = [], + {ok,Pid1}=case lists:keysearch(flags,1,Option_list) of + {value,{flags,Flags}}-> + {ok, Pid} = gen_server:start_link(?MODULE, [Flags], Options); + false -> + {ok, Pid} = gen_server:start_link(?MODULE, [], Options) + end, + gen_server:call(Pid1, {open, ip_comm,Option_list}, infinity); + + +%%The only option was the tuple form of the ip-number +open(Host)when tuple(Host) -> + open(Host, ?FTP_PORT, []); + +%%Host is the string form of the hostname +open(Host)-> + open(Host,?FTP_PORT,[]). + + + +open(Host, Port) when integer(Port) -> + open(Host,Port,[]); + +open(Host, Flags) when list(Flags) -> + open(Host,?FTP_PORT, Flags). + +open(Host,Port,Flags) when integer(Port), list(Flags) -> + %% Dbg = {debug,[trace,log,statistics]}, + %% Options = [Dbg], + Options = [], + {ok, Pid} = gen_server:start_link(?MODULE, [Flags], Options), + gen_server:call(Pid, {open, ip_comm, Host, Port}, infinity). + +%% user(Pid, User, Pass) +%% Purpose: Login. +%% Args: Pid = pid(), User = Pass = string() +%% Returns: ok | {error, euser} | {error, econn} +user(Pid, User, Pass) -> + gen_server:call(Pid, {user, User, Pass}, infinity). + +%% user(Pid, User, Pass,Acc) +%% Purpose: Login whith a supplied account name +%% Args: Pid = pid(), User = Pass = Acc = string() +%% Returns: ok | {error, euser} | {error, econn} | {error, eacct} +user(Pid, User, Pass,Acc) -> + gen_server:call(Pid, {user, User, Pass,Acc}, infinity). + +%% account(Pid,Acc) +%% Purpose: Set a user Account. +%% Args: Pid = pid(), Acc= string() +%% Returns: ok | {error, eacct} +account(Pid,Acc) -> + gen_server:call(Pid, {account,Acc}, infinity). + +%% pwd(Pid) +%% +%% Purpose: Get the current working directory at remote server. +%% Args: Pid = pid() +%% Returns: {ok, Dir} | {error, elogin} | {error, econn} +pwd(Pid) -> + gen_server:call(Pid, pwd, infinity). + +%% lpwd(Pid) +%% +%% Purpose: Get the current working directory at local server. +%% Args: Pid = pid() +%% Returns: {ok, Dir} | {error, elogin} +lpwd(Pid) -> + gen_server:call(Pid, lpwd, infinity). + +%% cd(Pid, Dir) +%% +%% Purpose: Change current working directory at remote server. +%% Args: Pid = pid(), Dir = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +cd(Pid, Dir) -> + gen_server:call(Pid, {cd, Dir}, infinity). + +%% lcd(Pid, Dir) +%% +%% Purpose: Change current working directory for the local client. +%% Args: Pid = pid(), Dir = string() +%% Returns: ok | {error, epath} +lcd(Pid, Dir) -> + gen_server:call(Pid, {lcd, Dir}, infinity). + +%% ls(Pid) +%% ls(Pid, Dir) +%% +%% Purpose: List the contents of current directory (ls/1) or directory +%% Dir (ls/2) at remote server. +%% Args: Pid = pid(), Dir = string() +%% Returns: {ok, Listing} | {error, epath} | {error, elogin} | {error, econn} +ls(Pid) -> + ls(Pid, ""). +ls(Pid, Dir) -> + gen_server:call(Pid, {dir, long, Dir}, infinity). + +%% nlist(Pid) +%% nlist(Pid, Dir) +%% +%% Purpose: List the contents of current directory (ls/1) or directory +%% Dir (ls/2) at remote server. The returned list is a stream +%% of file names. +%% Args: Pid = pid(), Dir = string() +%% Returns: {ok, Listing} | {error, epath} | {error, elogin} | {error, econn} +nlist(Pid) -> + nlist(Pid, ""). +nlist(Pid, Dir) -> + gen_server:call(Pid, {dir, short, Dir}, infinity). + +%% rename(Pid, CurrFile, NewFile) +%% +%% Purpose: Rename a file at remote server. +%% Args: Pid = pid(), CurrFile = NewFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +rename(Pid, CurrFile, NewFile) -> + gen_server:call(Pid, {rename, CurrFile, NewFile}, infinity). + +%% delete(Pid, File) +%% +%% Purpose: Remove file at remote server. +%% Args: Pid = pid(), File = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +delete(Pid, File) -> + gen_server:call(Pid, {delete, File}, infinity). + +%% mkdir(Pid, Dir) +%% +%% Purpose: Make directory at remote server. +%% Args: Pid = pid(), Dir = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +mkdir(Pid, Dir) -> + gen_server:call(Pid, {mkdir, Dir}, infinity). + +%% rmdir(Pid, Dir) +%% +%% Purpose: Remove directory at remote server. +%% Args: Pid = pid(), Dir = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +rmdir(Pid, Dir) -> + gen_server:call(Pid, {rmdir, Dir}, infinity). + +%% type(Pid, Type) +%% +%% Purpose: Set transfer type. +%% Args: Pid = pid(), Type = ascii | binary +%% Returns: ok | {error, etype} | {error, elogin} | {error, econn} +type(Pid, Type) -> + gen_server:call(Pid, {type, Type}, infinity). + +%% recv(Pid, RFile [, LFile]) +%% +%% Purpose: Transfer file from remote server. +%% Args: Pid = pid(), RFile = LFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +recv(Pid, RFile) -> + recv(Pid, RFile, ""). + +recv(Pid, RFile, LFile) -> + gen_server:call(Pid, {recv, RFile, LFile}, infinity). + +%% recv_bin(Pid, RFile) +%% +%% Purpose: Transfer file from remote server into binary. +%% Args: Pid = pid(), RFile = string() +%% Returns: {ok, Bin} | {error, epath} | {error, elogin} | {error, econn} +recv_bin(Pid, RFile) -> + gen_server:call(Pid, {recv_bin, RFile}, infinity). + +%% recv_chunk_start(Pid, RFile) +%% +%% Purpose: Start receive of chunks of remote file. +%% Args: Pid = pid(), RFile = string(). +%% Returns: ok | {error, elogin} | {error, epath} | {error, econn} +recv_chunk_start(Pid, RFile) -> + gen_server:call(Pid, {recv_chunk_start, RFile}, infinity). + + +%% recv_chunk(Pid, RFile) +%% +%% Purpose: Transfer file from remote server into binary in chunks +%% Args: Pid = pid(), RFile = string() +%% Returns: Reference +recv_chunk(Pid) -> + gen_server:call(Pid, recv_chunk, infinity). + +%% send(Pid, LFile [, RFile]) +%% +%% Purpose: Transfer file to remote server. +%% Args: Pid = pid(), LFile = RFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +send(Pid, LFile) -> + send(Pid, LFile, ""). + +send(Pid, LFile, RFile) -> + gen_server:call(Pid, {send, LFile, RFile}, infinity). + +%% send_bin(Pid, Bin, RFile) +%% +%% Purpose: Transfer a binary to a remote file. +%% Args: Pid = pid(), Bin = binary(), RFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, enotbinary} +%% | {error, econn} +send_bin(Pid, Bin, RFile) when binary(Bin) -> + gen_server:call(Pid, {send_bin, Bin, RFile}, infinity); +send_bin(Pid, Bin, RFile) -> + {error, enotbinary}. + +%% send_chunk_start(Pid, RFile) +%% +%% Purpose: Start transfer of chunks to remote file. +%% Args: Pid = pid(), RFile = string(). +%% Returns: ok | {error, elogin} | {error, epath} | {error, econn} +send_chunk_start(Pid, RFile) -> + gen_server:call(Pid, {send_chunk_start, RFile}, infinity). + + +%% append_chunk_start(Pid, RFile) +%% +%% Purpose: Start append chunks of data to remote file. +%% Args: Pid = pid(), RFile = string(). +%% Returns: ok | {error, elogin} | {error, epath} | {error, econn} +append_chunk_start(Pid, RFile) -> + gen_server:call(Pid, {append_chunk_start, RFile}, infinity). + + +%% send_chunk(Pid, Bin) +%% +%% Purpose: Send chunk to remote file. +%% Args: Pid = pid(), Bin = binary(). +%% Returns: ok | {error, elogin} | {error, enotbinary} | {error, echunk} +%% | {error, econn} +send_chunk(Pid, Bin) when binary(Bin) -> + gen_server:call(Pid, {send_chunk, Bin}, infinity); +send_chunk(Pid, Bin) -> + {error, enotbinary}. + +%%append_chunk(Pid, Bin) +%% +%% Purpose: Append chunk to remote file. +%% Args: Pid = pid(), Bin = binary(). +%% Returns: ok | {error, elogin} | {error, enotbinary} | {error, echunk} +%% | {error, econn} +append_chunk(Pid, Bin) when binary(Bin) -> + gen_server:call(Pid, {append_chunk, Bin}, infinity); +append_chunk(Pid, Bin) -> + {error, enotbinary}. + +%% send_chunk_end(Pid) +%% +%% Purpose: End sending of chunks to remote file. +%% Args: Pid = pid(). +%% Returns: ok | {error, elogin} | {error, echunk} | {error, econn} +send_chunk_end(Pid) -> + gen_server:call(Pid, send_chunk_end, infinity). + +%% append_chunk_end(Pid) +%% +%% Purpose: End appending of chunks to remote file. +%% Args: Pid = pid(). +%% Returns: ok | {error, elogin} | {error, echunk} | {error, econn} +append_chunk_end(Pid) -> + gen_server:call(Pid, append_chunk_end, infinity). + +%% append(Pid, LFile,RFile) +%% +%% Purpose: Append the local file to the remote file +%% Args: Pid = pid(), LFile = RFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, econn} +append(Pid, LFile) -> + append(Pid, LFile, ""). + +append(Pid, LFile, RFile) -> + gen_server:call(Pid, {append, LFile, RFile}, infinity). + +%% append_bin(Pid, Bin, RFile) +%% +%% Purpose: Append a binary to a remote file. +%% Args: Pid = pid(), Bin = binary(), RFile = string() +%% Returns: ok | {error, epath} | {error, elogin} | {error, enotbinary} +%% | {error, econn} +append_bin(Pid, Bin, RFile) when binary(Bin) -> + gen_server:call(Pid, {append_bin, Bin, RFile}, infinity); +append_bin(Pid, Bin, RFile) -> + {error, enotbinary}. + + +%% close(Pid) +%% +%% Purpose: End the ftp session. +%% Args: Pid = pid() +%% Returns: ok +close(Pid) -> + case (catch gen_server:call(Pid, close, 30000)) of + ok -> + ok; + {'EXIT',{noproc,_}} -> + %% Already gone... + ok; + Res -> + Res + end. + +%% formaterror(Tag) +%% +%% Purpose: Return diagnostics. +%% Args: Tag = atom() | {error, atom()} +%% Returns: string(). +formaterror(Tag) -> + errstr(Tag). + +%% help() +%% +%% Purpose: Print list of valid commands. +%% +%% Undocumented. +%% +help() -> + io:format("\n Commands:\n" + " ---------\n" + " cd(Pid, Dir)\n" + " close(Pid)\n" + " delete(Pid, File)\n" + " formaterror(Tag)\n" + " help()\n" + " lcd(Pid, Dir)\n" + " lpwd(Pid)\n" + " ls(Pid [, Dir])\n" + " mkdir(Pid, Dir)\n" + " nlist(Pid [, Dir])\n" + " open(Host [Port, Flags])\n" + " pwd(Pid)\n" + " recv(Pid, RFile [, LFile])\n" + " recv_bin(Pid, RFile)\n" + " recv_chunk_start(Pid, RFile)\n" + " recv_chunk(Pid)\n" + " rename(Pid, CurrFile, NewFile)\n" + " rmdir(Pid, Dir)\n" + " send(Pid, LFile [, RFile])\n" + " send_chunk(Pid, Bin)\n" + " send_chunk_start(Pid, RFile)\n" + " send_chunk_end(Pid)\n" + " send_bin(Pid, Bin, RFile)\n" + " append(Pid, LFile [, RFile])\n" + " append_chunk(Pid, Bin)\n" + " append_chunk_start(Pid, RFile)\n" + " append_chunk_end(Pid)\n" + " append_bin(Pid, Bin, RFile)\n" + " type(Pid, Type)\n" + " account(Pid,Account)\n" + " user(Pid, User, Pass)\n" + " user(Pid, User, Pass,Account)\n"). + +%% +%% INIT +%% + +-record(state, {csock = undefined, dsock = undefined, flags = undefined, + ldir = undefined, type = undefined, chunk = false, + pending = undefined}). + +init([Flags]) -> + sock_start(), + put(debug,get_debug(Flags)), + put(verbose,get_verbose(Flags)), + process_flag(priority, low), + {ok, LDir} = file:get_cwd(), + {ok, #state{flags = Flags, ldir = LDir}}. + +%% +%% HANDLERS +%% + +%% First group of reply code digits +-define(POS_PREL, 1). +-define(POS_COMPL, 2). +-define(POS_INTERM, 3). +-define(TRANS_NEG_COMPL, 4). +-define(PERM_NEG_COMPL, 5). + +%% Second group of reply code digits +-define(SYNTAX,0). +-define(INFORMATION,1). +-define(CONNECTION,2). +-define(AUTH_ACC,3). +-define(UNSPEC,4). +-define(FILE_SYSTEM,5). + + +-define(STOP_RET(E),{stop, normal, {error, E}, + State#state{csock = undefined}}). + + +rescode(?POS_PREL,_,_) -> pos_prel; %%Positive Preleminary Reply +rescode(?POS_COMPL,_,_) -> pos_compl; %%Positive Completion Reply +rescode(?POS_INTERM,?AUTH_ACC,2) -> pos_interm_acct; %%Positive Intermediate Reply nedd account +rescode(?POS_INTERM,_,_) -> pos_interm; %%Positive Intermediate Reply +rescode(?TRANS_NEG_COMPL,?FILE_SYSTEM,2) -> trans_no_space; %%No storage area no action taken +rescode(?TRANS_NEG_COMPL,_,_) -> trans_neg_compl;%%Temporary Error, no action taken +rescode(?PERM_NEG_COMPL,?FILE_SYSTEM,2) -> perm_no_space; %%Permanent disk space error, the user shall not try again +rescode(?PERM_NEG_COMPL,?FILE_SYSTEM,3) -> perm_fname_not_allowed; +rescode(?PERM_NEG_COMPL,_,_) -> perm_neg_compl. + +retcode(trans_no_space,_) -> etnospc; +retcode(perm_no_space,_) -> epnospc; +retcode(perm_fname_not_allowed,_) -> efnamena; +retcode(_,Otherwise) -> Otherwise. + +handle_call({open,ip_comm,Conn_data},From,State) -> + case lists:keysearch(host,1,Conn_data) of + {value,{host,Host}}-> + Port=get_key1(port,Conn_data,?FTP_PORT), + Timeout=get_key1(timeout,Conn_data,?OPEN_TIMEOUT), + open(Host,Port,Timeout,State); + false -> + ehost + end; + +handle_call({open,ip_comm,Host,Port},From,State) -> + open(Host,Port,?OPEN_TIMEOUT,State); + +handle_call({user, User, Pass}, _From, State) -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "USER ~s", [User]) of + pos_interm -> + case ctrl_cmd(CSock, "PASS ~s", [Pass]) of + pos_compl -> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + {error,enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, euser}, State} + end; + pos_compl -> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, euser}, State} + end; + +handle_call({user, User, Pass,Acc}, _From, State) -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "USER ~s", [User]) of + pos_interm -> + case ctrl_cmd(CSock, "PASS ~s", [Pass]) of + pos_compl -> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + pos_interm_acct-> + case ctrl_cmd(CSock,"ACCT ~s",[Acc]) of + pos_compl-> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + {error,enotconn}-> + ?STOP_RET(econn); + _ -> + {reply, {error, eacct}, State} + end; + {error,enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, euser}, State} + end; + pos_compl -> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, euser}, State} + end; + +%%set_account(Acc,State)->Reply +%%Reply={reply, {error, euser}, State} | {error,enotconn}-> +handle_call({account,Acc},_From,State)-> + #state{csock = CSock} = State, + case ctrl_cmd(CSock,"ACCT ~s",[Acc]) of + pos_compl-> + {reply, ok,State}; + {error,enotconn}-> + ?STOP_RET(econn); + Error -> + debug(" error: ~p",[Error]), + {reply, {error, eacct}, State} + end; + +handle_call(pwd, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + %% + %% NOTE: The directory string comes over the control connection. + case sock_write(CSock, mk_cmd("PWD", [])) of + ok -> + {_, Line} = result_line(CSock), + {_, Cs} = split($", Line), % XXX Ugly + {Dir0, _} = split($", Cs), + Dir = lists:delete($", Dir0), + {reply, {ok, Dir}, State}; + {error, enotconn} -> + ?STOP_RET(econn) + end; + +handle_call(lpwd, _From, State) -> + #state{csock = CSock, ldir = LDir} = State, + {reply, {ok, LDir}, State}; + +handle_call({cd, Dir}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "CWD ~s", [Dir]) of + pos_compl -> + {reply, ok, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + +handle_call({lcd, Dir}, _From, State) -> + #state{csock = CSock, ldir = LDir0} = State, + LDir = absname(LDir0, Dir), + case file:read_file_info(LDir) of + {ok, _ } -> + {reply, ok, State#state{ldir = LDir}}; + _ -> + {reply, {error, epath}, State} + end; + +handle_call({dir, Len, Dir}, _From, State) when State#state.chunk == false -> + debug(" dir : ~p: ~s~n",[Len,Dir]), + #state{csock = CSock, type = Type} = State, + set_type(ascii, Type, CSock), + LSock = listen_data(CSock, raw), + Cmd = case Len of + short -> "NLST"; + long -> "LIST" + end, + Result = case Dir of + "" -> + ctrl_cmd(CSock, Cmd, ""); + _ -> + ctrl_cmd(CSock, Cmd ++ " ~s", [Dir]) + end, + debug(" ctrl : command result: ~p~n",[Result]), + case Result of + pos_prel -> + debug(" dbg : await the data connection", []), + DSock = accept_data(LSock), + debug(" dbg : await the data", []), + Reply0 = + case recv_data(DSock) of + {ok, DirData} -> + debug(" data : DirData: ~p~n",[DirData]), + case result(CSock) of + pos_compl -> + {ok, DirData}; + _ -> + {error, epath} + end; + {error, Reason} -> + sock_close(DSock), + verbose(" data : error: ~p, ~p~n",[Reason, result(CSock)]), + {error, epath} + end, + + debug(" ctrl : reply: ~p~n",[Reply0]), + reset_type(ascii, Type, CSock), + {reply, Reply0, State}; + {closed, _Why} -> + ?STOP_RET(econn); + _ -> + sock_close(LSock), + {reply, {error, epath}, State} + end; + + +handle_call({rename, CurrFile, NewFile}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "RNFR ~s", [CurrFile]) of + pos_interm -> + case ctrl_cmd(CSock, "RNTO ~s", [NewFile]) of + pos_compl -> + {reply, ok, State}; + _ -> + {reply, {error, epath}, State} + end; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + +handle_call({delete, File}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "DELE ~s", [File]) of + pos_compl -> + {reply, ok, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + +handle_call({mkdir, Dir}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "MKD ~s", [Dir]) of + pos_compl -> + {reply, ok, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + +handle_call({rmdir, Dir}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case ctrl_cmd(CSock, "RMD ~s", [Dir]) of + pos_compl -> + {reply, ok, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + +handle_call({type, Type}, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + case Type of + ascii -> + set_type(ascii, CSock), + {reply, ok, State#state{type = ascii}}; + binary -> + set_type(binary, CSock), + {reply, ok, State#state{type = binary}}; + _ -> + {reply, {error, etype}, State} + end; + +handle_call({recv, RFile, LFile}, _From, State) when State#state.chunk == false -> + #state{csock = CSock, ldir = LDir} = State, + ALFile = case LFile of + "" -> + absname(LDir, RFile); + _ -> + absname(LDir, LFile) + end, + case file_open(ALFile, write) of + {ok, Fd} -> + LSock = listen_data(CSock, binary), + Ret = case ctrl_cmd(CSock, "RETR ~s", [RFile]) of + pos_prel -> + DSock = accept_data(LSock), + recv_file(DSock, Fd), + Reply0 = case result(CSock) of + pos_compl -> + ok; + _ -> + {error, epath} + end, + sock_close(DSock), + {reply, Reply0, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end, + file_close(Fd), + Ret; + {error, _What} -> + {reply, {error, epath}, State} + end; + +handle_call({recv_bin, RFile}, _From, State) when State#state.chunk == false -> + #state{csock = CSock, ldir = LDir} = State, + LSock = listen_data(CSock, binary), + case ctrl_cmd(CSock, "RETR ~s", [RFile]) of + pos_prel -> + DSock = accept_data(LSock), + Reply = recv_binary(DSock,CSock), + sock_close(DSock), + {reply, Reply, State}; + {error, enotconn} -> + ?STOP_RET(econn); + _ -> + {reply, {error, epath}, State} + end; + + +handle_call({recv_chunk_start, RFile}, _From, State) + when State#state.chunk == false -> + start_chunk_transfer("RETR",RFile,State); + +handle_call(recv_chunk, _From, State) + when State#state.chunk == true -> + do_recv_chunk(State); + + +handle_call({send, LFile, RFile}, _From, State) + when State#state.chunk == false -> + transfer_file("STOR",LFile,RFile,State); + +handle_call({append, LFile, RFile}, _From, State) + when State#state.chunk == false -> + transfer_file("APPE",LFile,RFile,State); + + +handle_call({send_bin, Bin, RFile}, _From, State) + when State#state.chunk == false -> + transfer_data("STOR",Bin,RFile,State); + +handle_call({append_bin, Bin, RFile}, _From, State) + when State#state.chunk == false -> + transfer_data("APPE",Bin,RFile,State); + + + +handle_call({send_chunk_start, RFile}, _From, State) + when State#state.chunk == false -> + start_chunk_transfer("STOR",RFile,State); + +handle_call({append_chunk_start,RFile},_From,State) + when State#state.chunk==false-> + start_chunk_transfer("APPE",RFile,State); + +handle_call({send_chunk, Bin}, _From, State) + when State#state.chunk == true -> + chunk_transfer(Bin,State); + +handle_call({append_chunk, Bin}, _From, State) + when State#state.chunk == true -> + chunk_transfer(Bin,State); + +handle_call(append_chunk_end, _From, State) + when State#state.chunk == true -> + end_chunk_transfer(State); + +handle_call(send_chunk_end, _From, State) + when State#state.chunk == true -> + end_chunk_transfer(State); + + + +handle_call(close, _From, State) when State#state.chunk == false -> + #state{csock = CSock} = State, + ctrl_cmd(CSock, "QUIT", []), + sock_close(CSock), + {stop, normal, ok, State}; + +handle_call(_, _From, State) when State#state.chunk == true -> + {reply, {error, echunk}, State}. + + +handle_cast(Msg, State) -> + {noreply, State}. + + +handle_info({Sock, {fromsocket, Bytes}}, State) when Sock == State#state.csock -> + put(leftovers, Bytes ++ leftovers()), + {noreply, State}; + +%% Data connection closed (during chunk sending) +handle_info({Sock, {socket_closed, _Reason}}, State) when Sock == State#state.dsock -> + {noreply, State#state{dsock = undefined}}; + +%% Control connection closed. +handle_info({Sock, {socket_closed, _Reason}}, State) when Sock == State#state.csock -> + debug(" sc : ~s~n",[leftovers()]), + {stop, ftp_server_close, State#state{csock = undefined}}; + +handle_info(Info, State) -> + error_logger:info_msg("ftp : ~w : Unexpected message: ~w\n", [self(),Info]), + {noreply, State}. + +code_change(OldVsn,State,Extra)-> + {ok,State}. + +terminate(Reason, State) -> + ok. +%% +%% OPEN CONNECTION +%% +open(Host,Port,Timeout,State)-> + case sock_connect(Host,Port,Timeout) of + {error, What} -> + {stop, normal, {error, What}, State}; + CSock -> + case result(CSock, State#state.flags) of + {error,Reason} -> + sock_close(CSock), + {stop,normal,{error,Reason},State}; + _ -> % We should really check this... + {reply, {ok, self()}, State#state{csock = CSock}} + end + end. + + + +%% +%% CONTROL CONNECTION +%% + +ctrl_cmd(CSock, Fmt, Args) -> + Cmd = mk_cmd(Fmt, Args), + case sock_write(CSock, Cmd) of + ok -> + debug(" cmd : ~s",[Cmd]), + result(CSock); + {error, enotconn} -> + {error, enotconn}; + Other -> + Other + end. + +mk_cmd(Fmt, Args) -> + [io_lib:format(Fmt, Args)| "\r\n"]. % Deep list ok. + +%% +%% TRANSFER TYPE +%% + +%% +%% set_type(NewType, CurrType, CSock) +%% reset_type(NewType, CurrType, CSock) +%% +set_type(Type, Type, CSock) -> + ok; +set_type(NewType, _OldType, CSock) -> + set_type(NewType, CSock). + +reset_type(Type, Type, CSock) -> + ok; +reset_type(_NewType, OldType, CSock) -> + set_type(OldType, CSock). + +set_type(ascii, CSock) -> + ctrl_cmd(CSock, "TYPE A", []); +set_type(binary, CSock) -> + ctrl_cmd(CSock, "TYPE I", []). + +%% +%% DATA CONNECTION +%% + +%% Create a listen socket for a data connection and send a PORT command +%% containing the IP address and port number. Mode is binary or raw. +%% +listen_data(CSock, Mode) -> + {IP, _} = sock_name(CSock), % IP address of control conn. + LSock = sock_listen(Mode, IP), + Port = sock_listen_port(LSock), + {A1, A2, A3, A4} = IP, + {P1, P2} = {Port div 256, Port rem 256}, + ctrl_cmd(CSock, "PORT ~w,~w,~w,~w,~w,~w", [A1, A2, A3, A4, P1, P2]), + LSock. + +%% +%% Accept the data connection and close the listen socket. +%% +accept_data(LSock) -> + Sock = sock_accept(LSock), + sock_close(LSock), + Sock. + +%% +%% DATA COLLECTION (ls, dir) +%% +%% Socket is a byte stream in ASCII mode. +%% + +%% Receive data (from data connection). +recv_data(Sock) -> + recv_data(Sock, [], 0). +recv_data(Sock, Sofar, ?OPER_TIMEOUT) -> + sock_close(Sock), + {ok, lists:flatten(lists:reverse(Sofar))}; +recv_data(Sock, Sofar, Retry) -> + case sock_read(Sock) of + {ok, Data} -> + debug(" dbg : received some data: ~n~s", [Data]), + recv_data(Sock, [Data| Sofar], 0); + {error, timeout} -> + %% Retry.. + recv_data(Sock, Sofar, Retry+1); + {error, Reason} -> + SoFar1 = lists:flatten(lists:reverse(Sofar)), + {error, {socket_error, Reason, SoFar1, Retry}}; + {closed, _} -> + {ok, lists:flatten(lists:reverse(Sofar))} + end. + +%% +%% BINARY TRANSFER +%% + +%% -------------------------------------------------- + +%% recv_binary(DSock,CSock) = {ok,Bin} | {error,Reason} +%% +recv_binary(DSock,CSock) -> + recv_binary1(recv_binary2(DSock,[],0),CSock). + +recv_binary1(Reply,Sock) -> + case result(Sock) of + pos_compl -> Reply; + _ -> {error, epath} + end. + +recv_binary2(Sock, _Bs, ?OPER_TIMEOUT) -> + sock_close(Sock), + {error,eclosed}; +recv_binary2(Sock, Bs, Retry) -> + case sock_read(Sock) of + {ok, Bin} -> + recv_binary2(Sock, [Bs, Bin], 0); + {error, timeout} -> + recv_binary2(Sock, Bs, Retry+1); + {closed, _Why} -> + {ok,list_to_binary(Bs)} + end. + +%% -------------------------------------------------- + +%% +%% recv_chunk +%% + +do_recv_chunk(#state{dsock = undefined} = State) -> + {reply, {error,econn}, State}; +do_recv_chunk(State) -> + recv_chunk1(recv_chunk2(State, 0), State). + +recv_chunk1({ok, _Bin} = Reply, State) -> + {reply, Reply, State}; +%% Reply = ok | {error, Reason} +recv_chunk1(Reply, #state{csock = CSock} = State) -> + State1 = State#state{dsock = undefined, chunk = false}, + case result(CSock) of + pos_compl -> + {reply, Reply, State1}; + _ -> + {reply, {error, epath}, State1} + end. + +recv_chunk2(#state{dsock = DSock} = State, ?OPER_TIMEOUT) -> + sock_close(DSock), + {error, eclosed}; +recv_chunk2(#state{dsock = DSock} = State, Retry) -> + case sock_read(DSock) of + {ok, Bin} -> + {ok, Bin}; + {error, timeout} -> + recv_chunk2(State, Retry+1); + {closed, Reason} -> + debug(" dbg : socket closed: ~p", [Reason]), + ok + end. + + +%% -------------------------------------------------- + +%% +%% FILE TRANSFER +%% + +recv_file(Sock, Fd) -> + recv_file(Sock, Fd, 0). + +recv_file(Sock, Fd, ?OPER_TIMEOUT) -> + sock_close(Sock), + {closed, timeout}; +recv_file(Sock, Fd, Retry) -> + case sock_read(Sock) of + {ok, Bin} -> + file_write(Fd, Bin), + recv_file(Sock, Fd); + {error, timeout} -> + recv_file(Sock, Fd, Retry+1); +% {error, Reason} -> +% SoFar1 = lists:flatten(lists:reverse(Sofar)), +% exit({socket_error, Reason, Sock, SoFar1, Retry}); + {closed, How} -> + {closed, How} + end. + +%% +%% send_file(Fd, Sock) = ok | {error, Why} +%% + +send_file(Fd, Sock) -> + {N, Bin} = file_read(Fd), + if + N > 0 -> + case sock_write(Sock, Bin) of + ok -> + send_file(Fd, Sock); + {error, Reason} -> + {error, Reason} + end; + true -> + ok + end. + + + +%% +%% PARSING OF RESULT LINES +%% + +%% Excerpt from RFC 959: +%% +%% "A reply is defined to contain the 3-digit code, followed by Space +%% <SP>, followed by one line of text (where some maximum line length +%% has been specified), and terminated by the Telnet end-of-line +%% code. There will be cases however, where the text is longer than +%% a single line. In these cases the complete text must be bracketed +%% so the User-process knows when it may stop reading the reply (i.e. +%% stop processing input on the control connection) and go do other +%% things. This requires a special format on the first line to +%% indicate that more than one line is coming, and another on the +%% last line to designate it as the last. At least one of these must +%% contain the appropriate reply code to indicate the state of the +%% transaction. To satisfy all factions, it was decided that both +%% the first and last line codes should be the same. +%% +%% Thus the format for multi-line replies is that the first line +%% will begin with the exact required reply code, followed +%% immediately by a Hyphen, "-" (also known as Minus), followed by +%% text. The last line will begin with the same code, followed +%% immediately by Space <SP>, optionally some text, and the Telnet +%% end-of-line code. +%% +%% For example: +%% 123-First line +%% Second line +%% 234 A line beginning with numbers +%% 123 The last line +%% +%% The user-process then simply needs to search for the second +%% occurrence of the same reply code, followed by <SP> (Space), at +%% the beginning of a line, and ignore all intermediary lines. If +%% an intermediary line begins with a 3-digit number, the Server +%% must pad the front to avoid confusion. +%% +%% This scheme allows standard system routines to be used for +%% reply information (such as for the STAT reply), with +%% "artificial" first and last lines tacked on. In rare cases +%% where these routines are able to generate three digits and a +%% Space at the beginning of any line, the beginning of each +%% text line should be offset by some neutral text, like Space. +%% +%% This scheme assumes that multi-line replies may not be nested." + +%% We have to collect the stream of result characters into lines (ending +%% in "\r\n"; we check for "\n"). When a line is assembled, left-over +%% characters are saved in the process dictionary. +%% + +%% result(Sock) = rescode() +%% +result(Sock) -> + result(Sock, false). + +result_line(Sock) -> + result(Sock, true). + +%% result(Sock, Bool) = {error,Reason} | rescode() | {rescode(), Lines} +%% Printout if Bool = true. +%% +result(Sock, RetForm) -> + case getline(Sock) of + Line when length(Line) > 3 -> + [D1, D2, D3| Tail] = Line, + case Tail of + [$-| _] -> + parse_to_end(Sock, [D1, D2, D3, $ ]); % 3 digits + space + _ -> + ok + end, + result(D1,D2,D3,Line,RetForm); + _ -> + retform(rescode(?PERM_NEG_COMPL,-1,-1),[],RetForm) + end. + +result(D1,_D2,_D3,Line,_RetForm) when D1 - $0 > 10 -> + {error,{invalid_server_response,Line}}; +result(D1,_D2,_D3,Line,_RetForm) when D1 - $0 < 0 -> + {error,{invalid_server_response,Line}}; +result(D1,D2,D3,Line,RetForm) -> + Res1 = D1 - $0, + Res2 = D2 - $0, + Res3 = D3 - $0, + verbose(" ~w : ~s", [Res1, Line]), + retform(rescode(Res1,Res2,Res3),Line,RetForm). + +retform(ResCode,Line,true) -> + {ResCode,Line}; +retform(ResCode,_,_) -> + ResCode. + +leftovers() -> + case get(leftovers) of + undefined -> []; + X -> X + end. + +%% getline(Sock) = Line +%% +getline(Sock) -> + getline(Sock, leftovers()). + +getline(Sock, Rest) -> + getline1(Sock, split($\n, Rest), 0). + +getline1(Sock, {[], Rest}, ?OPER_TIMEOUT) -> + sock_close(Sock), + put(leftovers, Rest), + []; +getline1(Sock, {[], Rest}, Retry) -> + case sock_read(Sock) of + {ok, More} -> + debug(" read : ~s~n",[More]), + getline(Sock, Rest ++ More); + {error, timeout} -> + %% Retry.. + getline1(Sock, {[], Rest}, Retry+1); + Error -> + put(leftovers, Rest), + [] + end; +getline1(Sock, {Line, Rest}, Retry) -> + put(leftovers, Rest), + Line. + +parse_to_end(Sock, Prefix) -> + Line = getline(Sock), + case lists:prefix(Prefix, Line) of + false -> + parse_to_end(Sock, Prefix); + true -> + ok + end. + + +%% Split list after first occurence of S. +%% Returns {Prefix, Suffix} ({[], Cs} if S not found). +split(S, Cs) -> + split(S, Cs, []). + +split(S, [S| Cs], As) -> + {lists:reverse([S|As]), Cs}; +split(S, [C| Cs], As) -> + split(S, Cs, [C| As]); +split(_, [], As) -> + {[], lists:reverse(As)}. + +%% +%% FILE INTERFACE +%% +%% All files are opened raw in binary mode. +%% +-define(BUFSIZE, 4096). + +file_open(File, Option) -> + file:open(File, [raw, binary, Option]). + +file_close(Fd) -> + file:close(Fd). + + +file_read(Fd) -> % Compatible with pre R2A. + case file:read(Fd, ?BUFSIZE) of + {ok, {N, Bytes}} -> + {N, Bytes}; + {ok, Bytes} -> + {size(Bytes), Bytes}; + eof -> + {0, []} + end. + +file_write(Fd, Bytes) -> + file:write(Fd, Bytes). + +absname(Dir, File) -> % Args swapped. + filename:absname(File, Dir). + + + +%% sock_start() +%% + +%% +%% USE GEN_TCP +%% + +sock_start() -> + inet_db:start(). + +%% +%% Connect to FTP server at Host (default is TCP port 21) in raw mode, +%% in order to establish a control connection. +%% + +sock_connect(Host,Port,TimeOut) -> + debug(" info : connect to server on ~p:~p~n",[Host,Port]), + Opts = [{packet, 0}, {active, false}], + case (catch gen_tcp:connect(Host, Port, Opts,TimeOut)) of + {'EXIT', R1} -> % XXX Probably no longer needed. + debug(" error: socket connectionn failed with exit reason:" + "~n ~p",[R1]), + {error, ehost}; + {error, R2} -> + debug(" error: socket connectionn failed with exit reason:" + "~n ~p",[R2]), + {error, ehost}; + {ok, Sock} -> + Sock + end. + +%% +%% Create a listen socket (any port) in binary or raw non-packet mode for +%% data connection. +%% +sock_listen(Mode, IP) -> + Opts = case Mode of + binary -> + [binary, {packet, 0}]; + raw -> + [{packet, 0}] + end, + {ok, Sock} = gen_tcp:listen(0, [{ip, IP}, {active, false} | Opts]), + Sock. + +sock_accept(LSock) -> + {ok, Sock} = gen_tcp:accept(LSock), + Sock. + +sock_close(undefined) -> + ok; +sock_close(Sock) -> + gen_tcp:close(Sock). + +sock_read(Sock) -> + case gen_tcp:recv(Sock, 0, ?BYTE_TIMEOUT) of + {ok, Bytes} -> + {ok, Bytes}; + + {error, closed} -> + {closed, closed}; % Yes + + %% --- OTP-4770 begin --- + %% + %% This seems to happen on windows + %% "Someone" tried to close an already closed socket... + %% + + {error, enotsock} -> + {closed, enotsock}; + + %% + %% --- OTP-4770 end --- + + {error, etimedout} -> + {error, timeout}; + + Other -> + Other + end. + +%% receive +%% {tcp, Sock, Bytes} -> +%% {ok, Bytes}; +%% {tcp_closed, Sock} -> +%% {closed, closed} +%% end. + +sock_write(Sock, Bytes) -> + gen_tcp:send(Sock, Bytes). + +sock_name(Sock) -> + {ok, {IP, Port}} = inet:sockname(Sock), + {IP, Port}. + +sock_listen_port(LSock) -> + {ok, Port} = inet:port(LSock), + Port. + + +%% +%% ERROR STRINGS +%% +errstr({error, Reason}) -> + errstr(Reason); + +errstr(echunk) -> "Synchronisation error during chung sending."; +errstr(eclosed) -> "Session has been closed."; +errstr(econn) -> "Connection to remote server prematurely closed."; +errstr(eexists) ->"File or directory already exists."; +errstr(ehost) -> "Host not found, FTP server not found, " +"or connection rejected."; +errstr(elogin) -> "User not logged in."; +errstr(enotbinary) -> "Term is not a binary."; +errstr(epath) -> "No such file or directory, already exists, " +"or permission denied."; +errstr(etype) -> "No such type."; +errstr(euser) -> "User name or password not valid."; +errstr(etnospc) -> "Insufficient storage space in system."; +errstr(epnospc) -> "Exceeded storage allocation " +"(for current directory or dataset)."; +errstr(efnamena) -> "File name not allowed."; +errstr(Reason) -> + lists:flatten(io_lib:format("Unknown error: ~w", [Reason])). + + + +%% ---------------------------------------------------------- + +get_verbose(Params) -> check_param(verbose,Params). + +get_debug(Flags) -> check_param(debug,Flags). + +check_param(P,Ps) -> lists:member(P,Ps). + + +%% verbose -> ok +%% +%% Prints the string if the Flags list is non-epmty +%% +%% Params: F Format string +%% A Arguments to the format string +%% +verbose(F,A) -> verbose(get(verbose),F,A). + +verbose(true,F,A) -> print(F,A); +verbose(_,_F,_A) -> ok. + + + + +%% debug -> ok +%% +%% Prints the string if debug enabled +%% +%% Params: F Format string +%% A Arguments to the format string +%% +debug(F,A) -> debug(get(debug),F,A). + +debug(true,F,A) -> print(F,A); +debug(_,_F,_A) -> ok. + + +print(F,A) -> io:format(F,A). + + + +transfer_file(Cmd,LFile,RFile,State)-> + #state{csock = CSock, ldir = LDir} = State, + ARFile = case RFile of + "" -> + LFile; + _ -> + RFile + end, + ALFile = absname(LDir, LFile), + case file_open(ALFile, read) of + {ok, Fd} -> + LSock = listen_data(CSock, binary), + case ctrl_cmd(CSock, "~s ~s", [Cmd,ARFile]) of + pos_prel -> + DSock = accept_data(LSock), + SFreply = send_file(Fd, DSock), + file_close(Fd), + sock_close(DSock), + case {SFreply,result(CSock)} of + {ok,pos_compl} -> + {reply, ok, State}; + {ok,Other} -> + debug(" error: unknown reply: ~p~n",[Other]), + {reply, {error, epath}, State}; + {{error,Why},Result} -> + ?STOP_RET(retcode(Result,econn)) + end; + {error, enotconn} -> + ?STOP_RET(econn); + Other -> + debug(" error: ctrl failed: ~p~n",[Other]), + {reply, {error, epath}, State} + end; + {error, Reason} -> + debug(" error: file open: ~p~n",[Reason]), + {reply, {error, epath}, State} + end. + +transfer_data(Cmd,Bin,RFile,State)-> + #state{csock = CSock, ldir = LDir} = State, + LSock = listen_data(CSock, binary), + case ctrl_cmd(CSock, "~s ~s", [Cmd,RFile]) of + pos_prel -> + DSock = accept_data(LSock), + SReply = sock_write(DSock, Bin), + sock_close(DSock), + case {SReply,result(CSock)} of + {ok,pos_compl} -> + {reply, ok, State}; + {ok,trans_no_space} -> + ?STOP_RET(etnospc); + {ok,perm_no_space} -> + ?STOP_RET(epnospc); + {ok,perm_fname_not_allowed} -> + ?STOP_RET(efnamena); + {ok,Other} -> + debug(" error: unknown reply: ~p~n",[Other]), + {reply, {error, epath}, State}; + {{error,Why},Result} -> + ?STOP_RET(retcode(Result,econn)) + %% {{error,_Why},_Result} -> + %% ?STOP_RET(econn) + end; + + {error, enotconn} -> + ?STOP_RET(econn); + + Other -> + debug(" error: ctrl failed: ~p~n",[Other]), + {reply, {error, epath}, State} + end. + + +start_chunk_transfer(Cmd, RFile, #state{csock = CSock} = State) -> + LSock = listen_data(CSock, binary), + case ctrl_cmd(CSock, "~s ~s", [Cmd,RFile]) of + pos_prel -> + DSock = accept_data(LSock), + {reply, ok, State#state{dsock = DSock, chunk = true}}; + {error, enotconn} -> + ?STOP_RET(econn); + Otherwise -> + debug(" error: ctrl failed: ~p~n",[Otherwise]), + {reply, {error, epath}, State} + end. + + +chunk_transfer(Bin,State)-> + #state{dsock = DSock, csock = CSock} = State, + case DSock of + undefined -> + {reply,{error,econn},State}; + _ -> + case sock_write(DSock, Bin) of + ok -> + {reply, ok, State}; + Other -> + debug(" error: chunk write error: ~p~n",[Other]), + {reply, {error, econn}, State#state{dsock = undefined}} + end + end. + + + +end_chunk_transfer(State)-> + #state{csock = CSock, dsock = DSock} = State, + case DSock of + undefined -> + Result = result(CSock), + case Result of + pos_compl -> + {reply,ok,State#state{dsock = undefined, + chunk = false}}; + trans_no_space -> + ?STOP_RET(etnospc); + perm_no_space -> + ?STOP_RET(epnospc); + perm_fname_not_allowed -> + ?STOP_RET(efnamena); + Result -> + debug(" error: send chunk end (1): ~p~n", + [Result]), + {reply,{error,epath},State#state{dsock = undefined, + chunk = false}} + end; + _ -> + sock_close(DSock), + Result = result(CSock), + case Result of + pos_compl -> + {reply,ok,State#state{dsock = undefined, + chunk = false}}; + trans_no_space -> + sock_close(CSock), + ?STOP_RET(etnospc); + perm_no_space -> + sock_close(CSock), + ?STOP_RET(epnospc); + perm_fname_not_allowed -> + sock_close(CSock), + ?STOP_RET(efnamena); + Result -> + debug(" error: send chunk end (2): ~p~n", + [Result]), + {reply,{error,epath},State#state{dsock = undefined, + chunk = false}} + end + end. + +get_key1(Key,List,Default)-> + case lists:keysearch(Key,1,List)of + {value,{_,Val}}-> + Val; + false-> + Default + end. |