diff options
Diffstat (limited to 'lib/stdlib')
51 files changed, 4041 insertions, 2032 deletions
diff --git a/lib/stdlib/doc/src/erl_tar.xml b/lib/stdlib/doc/src/erl_tar.xml index 24e7b64b9e..f28d8b425b 100644 --- a/lib/stdlib/doc/src/erl_tar.xml +++ b/lib/stdlib/doc/src/erl_tar.xml @@ -37,12 +37,13 @@ </modulesummary> <description> <p>This module archives and extract files to and from - a tar file. This module supports the <c>ustar</c> format - (IEEE Std 1003.1 and ISO/IEC 9945-1). All modern <c>tar</c> - programs (including GNU tar) can read this format. To ensure that - that GNU tar produces a tar file that <c>erl_tar</c> can read, - specify option <c>--format=ustar</c> to GNU tar.</p> - + a tar file. This module supports reading most common tar formats, + namely v7, STAR, USTAR, and PAX, as well as some of GNU tar's extensions + to the USTAR format (sparse files most notably). It produces tar archives + in USTAR format, unless the files being archived require PAX format due to + restrictions in USTAR (such as unicode metadata, filename length, and more). + As such, <c>erl_tar</c> supports tar archives produced by most all modern + tar utilities, and produces tarballs which should be similarly portable.</p> <p>By convention, the name of a tar file is to end in "<c>.tar</c>". To abide to the convention, add "<c>.tar</c>" to the name.</p> @@ -83,6 +84,8 @@ <p>If <seealso marker="kernel:file#native_name_encoding/0"> <c>file:native_name_encoding/0</c></seealso> returns <c>latin1</c>, no translation of path names is done.</p> + + <p>Unicode metadata stored in PAX headers is preserved</p> </section> <section> @@ -104,21 +107,20 @@ <title>Limitations</title> <list type="bulleted"> <item> - <p>For maximum compatibility, it is safe to archive files with names - up to 100 characters in length. Such tar files can generally be - extracted by any <c>tar</c> program.</p> - </item> - <item> - <p>For filenames exceeding 100 characters in length, the resulting tar - file can only be correctly extracted by a POSIX-compatible <c>tar</c> - program (such as Solaris <c>tar</c> or a modern GNU <c>tar</c>).</p> - </item> - <item> - <p>Files with longer names than 256 bytes cannot be stored.</p> + <p>If you must remain compatible with the USTAR tar format, you must ensure file paths being + stored are less than 255 bytes in total, with a maximum filename component + length of 100 bytes. USTAR uses a header field (prefix) in addition to the name field, and + splits file paths longer than 100 bytes into two parts. This split is done on a directory boundary, + and is done in such a way to make the best use of the space available in those two fields, but in practice + this will often mean that you have less than 255 bytes for a path. <c>erl_tar</c> will + automatically upgrade the format to PAX to handle longer filenames, so this is only an issue if you + need to extract the archive with an older implementation of <c>erl_tar</c> or <c>tar</c> which does + not support PAX. In this case, the PAX headers will be extracted as regular files, and you will need to + apply them manually.</p> </item> <item> - <p>The file name a symbolic link points is always limited - to 100 characters.</p> + <p>Like the above, if you must remain USTAR compatible, you must also ensure than paths for + symbolic/hard links are no more than 100 bytes, otherwise PAX headers will be used.</p> </item> </list> </section> @@ -129,7 +131,9 @@ <fsummary>Add a file to an open tar file.</fsummary> <type> <v>TarDescriptor = term()</v> - <v>Filename = filename()</v> + <v>FilenameOrBin = filename()|binary()</v> + <v>NameInArchive = filename()</v> + <v>Filename = filename()|{NameInArchive,FilenameOrBin}</v> <v>Options = [Option]</v> <v>Option = dereference|verbose|{chunks,ChunkSize}</v> <v>ChunkSize = positive_integer()</v> @@ -139,6 +143,9 @@ <desc> <p>Adds a file to a tar file that has been opened for writing by <seealso marker="#open/2"><c>open/1</c></seealso>.</p> + <p><c>NameInArchive</c> is the name under which the file becomes + stored in the tar file. The file gets this name when it is + extracted from the tar file.</p> <p>Options:</p> <taglist> <tag><c>dereference</c></tag> @@ -183,9 +190,6 @@ <seealso marker="#open/2"><c>open/2</c></seealso>. This function accepts the same options as <seealso marker="#add/3"><c>add/3</c></seealso>.</p> - <p><c>NameInArchive</c> is the name under which the file becomes - stored in the tar file. The file gets this name when it is - extracted from the tar file.</p> </desc> </func> @@ -206,8 +210,8 @@ <fsummary>Create a tar archive.</fsummary> <type> <v>Name = filename()</v> - <v>FileList = [Filename|{NameInArchive, binary()},{NameInArchive, - Filename}]</v> + <v>FileList = [Filename|{NameInArchive, FilenameOrBin}]</v> + <v>FilenameOrBin = filename()|binary()</v> <v>Filename = filename()</v> <v>NameInArchive = filename()</v> <v>RetValue = ok|{error,{Name,Reason}}</v> @@ -225,8 +229,8 @@ <fsummary>Create a tar archive with options.</fsummary> <type> <v>Name = filename()</v> - <v>FileList = [Filename|{NameInArchive, binary()},{NameInArchive, - Filename}]</v> + <v>FileList = [Filename|{NameInArchive, FilenameOrBin}]</v> + <v>FilenameOrBin = filename()|binary()</v> <v>Filename = filename()</v> <v>NameInArchive = filename()</v> <v>OptionList = [Option]</v> @@ -275,7 +279,8 @@ <name>extract(Name) -> RetValue</name> <fsummary>Extract all files from a tar file.</fsummary> <type> - <v>Name = filename()</v> + <v>Name = filename() | {binary,binary()} | {file,Fd}</v> + <v>Fd = file_descriptor()</v> <v>RetValue = ok|{error,{Name,Reason}}</v> <v>Reason = term()</v> </type> @@ -294,8 +299,7 @@ <name>extract(Name, OptionList)</name> <fsummary>Extract files from a tar file.</fsummary> <type> - <v>Name = filename() | {binary,Binary} | {file,Fd}</v> - <v>Binary = binary()</v> + <v>Name = filename() | {binary,binary()} | {file,Fd}</v> <v>Fd = file_descriptor()</v> <v>OptionList = [Option]</v> <v>Option = {cwd,Cwd}|{files,FileList}|keep_old_files|verbose|memory</v> @@ -521,7 +525,7 @@ erl_tar:close(TarDesc)</code> <name>table(Name) -> RetValue</name> <fsummary>Retrieve the name of all files in a tar file.</fsummary> <type> - <v>Name = filename()</v> + <v>Name = filename()|{binary,binary()}|{file,file_descriptor()}</v> <v>RetValue = {ok,[string()]}|{error,{Name,Reason}}</v> <v>Reason = term()</v> </type> @@ -535,7 +539,7 @@ erl_tar:close(TarDesc)</code> <fsummary>Retrieve name and information of all files in a tar file. </fsummary> <type> - <v>Name = filename()</v> + <v>Name = filename()|{binary,binary()}|{file,file_descriptor()}</v> </type> <desc> <p>Retrieves the names of all files in the tar file <c>Name</c>.</p> @@ -546,7 +550,7 @@ erl_tar:close(TarDesc)</code> <name>t(Name)</name> <fsummary>Print the name of each file in a tar file.</fsummary> <type> - <v>Name = filename()</v> + <v>Name = filename()|{binary,binary()}|{file,file_descriptor()}</v> </type> <desc> <p>Prints the names of all files in the tar file <c>Name</c> to the @@ -559,7 +563,7 @@ erl_tar:close(TarDesc)</code> <fsummary>Print name and information for each file in a tar file. </fsummary> <type> - <v>Name = filename()</v> + <v>Name = filename()|{binary,binary()}|{file,file_descriptor()}</v> </type> <desc> <p>Prints names and information about all files in the tar file diff --git a/lib/stdlib/doc/src/filename.xml b/lib/stdlib/doc/src/filename.xml index 7acef51ca1..0ccca37a9d 100644 --- a/lib/stdlib/doc/src/filename.xml +++ b/lib/stdlib/doc/src/filename.xml @@ -513,6 +513,33 @@ true </func> <func> + <name name="safe_relative_path" arity="1"/> + <fsummary>Sanitize a relative path to avoid directory traversal attacks.</fsummary> + <desc> + <p>Sanitizes the relative path by eliminating ".." and "." + components to protect against directory traversal attacks. + Either returns the sanitized path name, or the atom + <c>unsafe</c> if the path is unsafe. + The path is considered unsafe in the following circumstances:</p> + <list type="bulleted"> + <item><p>The path is not relative.</p></item> + <item><p>A ".." component would climb up above the root of + the relative path.</p></item> + </list> + <p><em>Examples:</em></p> + <pre> +1> <input>filename:safe_relative_path("dir/sub_dir/..").</input> +"dir" +2> <input>filename:safe_relative_path("dir/..").</input> +[] +3> <input>filename:safe_relative_path("dir/../..").</input> +unsafe +4> <input>filename:safe_relative_path("/abs/path").</input> +unsafe</pre> + </desc> + </func> + + <func> <name name="split" arity="1"/> <fsummary>Split a filename into its path components.</fsummary> <desc> diff --git a/lib/stdlib/doc/src/gen_statem.xml b/lib/stdlib/doc/src/gen_statem.xml index fd498ee82e..5eb13db1aa 100644 --- a/lib/stdlib/doc/src/gen_statem.xml +++ b/lib/stdlib/doc/src/gen_statem.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2016</year> + <year>2016-2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -587,8 +587,8 @@ handle_event(_, _, State, Data) -> <name name="state_enter"/> <desc> <p> - If the state machine should use <em>state enter calls</em> - is selected when starting the <c>gen_statem</c> + Whether the state machine should use <em>state enter calls</em> + or not is selected when starting the <c>gen_statem</c> and after code change using the return value from <seealso marker="#Module:callback_mode/0"><c>Module:callback_mode/0</c></seealso>. </p> @@ -606,7 +606,16 @@ handle_event(_, _, State, Data) -> See <seealso marker="#Module:StateName/3"><c>Module:StateName/3</c></seealso> and - <seealso marker="#Module:handle_event/4"><c>Module:handle_event/4</c></seealso>. + <seealso marker="#Module:handle_event/4"><c>Module:handle_event/4</c></seealso>. + Such a call can be repeated by returning a + <seealso marker="#type-state_callback_result"> + <c>repeat_state</c> + </seealso> + or + <seealso marker="#type-state_callback_result"> + <c>repeat_state_and_data</c> + </seealso> + tuple from the state callback. </p> <p> If @@ -625,7 +634,8 @@ handle_event(_, _, State, Data) -> right before entering the initial state even though this formally is not a state change. In this case <c>OldState</c> will be the same as <c>State</c>, - which can not happen for a subsequent state change. + which can not happen for a subsequent state change, + but will happen when repeating the state enter call. </p> </desc> </datatype> @@ -640,7 +650,15 @@ handle_event(_, _, State, Data) -> <list type="ordered"> <item> <p> - If the state changes or is the initial state, and + If the state changes, is the initial state, + <seealso marker="#type-state_callback_result"> + <c>repeat_state</c> + </seealso> + or + <seealso marker="#type-state_callback_result"> + <c>repeat_state_and_data</c> + </seealso> + is used, and also <seealso marker="#type-state_enter"><em>state enter calls</em></seealso> are used, the <c>gen_statem</c> calls the new state callback with arguments @@ -983,6 +1001,33 @@ handle_event(_, _, State, Data) -> </desc> </datatype> <datatype> + <name name="init_result"/> + <desc> + <p> + For a succesful initialization, + <c><anno>State</anno></c> is the initial + <seealso marker="#type-state"><c>state()</c></seealso> + and <c><anno>Data</anno></c> the initial server + <seealso marker="#type-data"><c>data()</c></seealso> + of the <c>gen_statem</c>. + </p> + <p> + The <seealso marker="#type-action"><c>Actions</c></seealso> + are executed when entering the first + <seealso marker="#type-state">state</seealso> just as for a + <seealso marker="#state callback">state callback</seealso>, + except that the action <c>postpone</c> is forced to + <c>false</c> since there is no event to postpone. + </p> + <p> + For an unsuccesful initialization, + <c>{stop,<anno>Reason</anno>}</c> + or <c>ignore</c> should be used; see + <seealso marker="#start_link/3"><c>start_link/3,4</c></seealso>. + </p> + </desc> + </datatype> + <datatype> <name name="state_enter_result"/> <desc> <p> @@ -1068,6 +1113,37 @@ handle_event(_, _, State, Data) -> <c>{next_state,CurrentState,CurrentData,<anno>Actions</anno>}</c>. </p> </item> + <tag><c>repeat_state</c></tag> + <item> + <p> + The <c>gen_statem</c> keeps the current state, or + does a state transition to the current state if you like, + sets <c><anno>NewData</anno></c>, + and executes all <c><anno>Actions</anno></c>. + If the <c>gen_statem</c> runs with + <seealso marker="#type-state_enter"><em>state enter calls</em></seealso>, + the state enter call is repeated, see type + <seealso marker="#type-transition_option"><c>transition_option()</c></seealso>, + otherwise <c>repeat_state</c> is the same as + <c>keep_state</c>. + </p> + </item> + <tag><c>repeat_state_and_data</c></tag> + <item> + <p> + The <c>gen_statem</c> keeps the current state and data, or + does a state transition to the current state if you like, + and executes all <c><anno>Actions</anno></c>. + This is the same as + <c>{repeat_state,CurrentData,<anno>Actions</anno>}</c>. + If the <c>gen_statem</c> runs with + <seealso marker="#type-state_enter"><em>state enter calls</em></seealso>, + the state enter call is repeated, see type + <seealso marker="#type-transition_option"><c>transition_option()</c></seealso>, + otherwise <c>repeat_state_and_data</c> is the same as + <c>keep_state_and_data</c>. + </p> + </item> <tag><c>stop</c></tag> <item> <p> @@ -1609,29 +1685,33 @@ handle_event(_, _, State, Data) -> It is recommended to use an atom as <c>Reason</c> since it will be wrapped in an <c>{error,Reason}</c> tuple. </p> + <p> + Also note when upgrading a <c>gen_statem</c>, + this function and hence + the <c>Change={advanced,Extra}</c> parameter in the + <seealso marker="sasl:appup"><c>appup</c></seealso> file + is not only needed to update the internal state + or to act on the <c>Extra</c> argument. + It is also needed if an upgrade or downgrade should change + <seealso marker="#type-callback_mode"><em>callback mode</em></seealso>, + or else the callback mode after the code change + will not be honoured, + most probably causing a server crash. + </p> </desc> </func> <func> - <name>Module:init(Args) -> Result</name> + <name>Module:init(Args) -> Result(StateType)</name> <fsummary> Optional function for initializing process and internal state. </fsummary> <type> <v>Args = term()</v> - <v>Result = {ok,State,Data}</v> - <v> | {ok,State,Data,Actions}</v> - <v> | {stop,Reason} | ignore</v> - <v>State = <seealso marker="#type-state">state()</seealso></v> - <v> - Data = <seealso marker="#type-data">data()</seealso> - </v> <v> - Actions = - [<seealso marker="#type-action">action()</seealso>] | - <seealso marker="#type-action">action()</seealso> + Result(StateType) = + <seealso marker="#type-init_result">init_result(StateType)</seealso> </v> - <v>Reason = term()</v> </type> <desc> <marker id="Module:init-1"/> @@ -1644,30 +1724,9 @@ handle_event(_, _, State, Data) -> the implementation state and server data. </p> <p> - <c>Args</c> is the <c>Args</c> argument provided to the start + <c>Args</c> is the <c>Args</c> argument provided to that start function. </p> - <p> - If the initialization is successful, the function is to - return <c>{ok,State,Data}</c> or - <c>{ok,State,Data,Actions}</c>. - <c>State</c> is the initial - <seealso marker="#type-state"><c>state()</c></seealso> - and <c>Data</c> the initial server - <seealso marker="#type-data"><c>data()</c></seealso>. - </p> - <p> - The <seealso marker="#type-action"><c>Actions</c></seealso> - are executed when entering the first - <seealso marker="#type-state">state</seealso> just as for a - <seealso marker="#state callback">state callback</seealso>. - </p> - <p> - If the initialization fails, - the function is to return <c>{stop,Reason}</c> - or <c>ignore</c>; see - <seealso marker="#start_link/3"><c>start_link/3,4</c></seealso>. - </p> <note> <p> This callback is optional, so a callback module does not need @@ -1873,22 +1932,33 @@ handle_event(_, _, State, Data) -> <seealso marker="#type-enter_action">actions</seealso> that may be returned: <seealso marker="#type-postpone"><c>postpone()</c></seealso> - and + is not allowed since a <em>state enter call</em> is not + an event so there is no event to postpone, and <seealso marker="#type-action"><c>{next_event,_,_}</c></seealso> - are not allowed. + is not allowed since using <em>state enter calls</em> + should not affect how events are consumed and produced. You may also not change states from this call. Should you return <c>{next_state,NextState, ...}</c> with <c>NextState =/= State</c> the <c>gen_statem</c> crashes. - You are advised to use <c>{keep_state,...}</c> or - <c>keep_state_and_data</c>. + It is possible to use <c>{repeat_state, ...}</c>, + <c>{repeat_state_and_data,_}</c> or + <c>repeat_state_and_data</c> but all of them makes little + sense since you immediately will be called again with a new + <em>state enter call</em> making this just a weird way + of looping, and there are better ways to loop in Erlang. + You are advised to use <c>{keep_state,...}</c>, + <c>{keep_state_and_data,_}</c> or + <c>keep_state_and_data</c> since you can not change states + from a <em>state enter call</em> anyway. </p> <p> Note the fact that you can use <seealso marker="erts:erlang#throw/1"><c>throw</c></seealso> to return the result, which can be useful. For example to bail out with <c>throw(keep_state_and_data)</c> - from deep within complex code that is in no position to - return <c>{next_state,State,Data}</c>. + from deep within complex code that can not + return <c>{next_state,State,Data}</c> because + <c>State</c> or <c>Data</c> is no longer in scope. </p> </desc> </func> @@ -1903,6 +1973,11 @@ handle_event(_, _, State, Data) -> <v>Ignored = term()</v> </type> <desc> + <note> + <p>This callback is optional, so callback modules need not + export it. The <c>gen_statem</c> module provides a default + implementation without cleanup.</p> + </note> <p> This function is called by a <c>gen_statem</c> when it is about to terminate. It is to be the opposite of diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml index 0143686bb2..0e8bf3d27c 100644 --- a/lib/stdlib/doc/src/notes.xml +++ b/lib/stdlib/doc/src/notes.xml @@ -3163,7 +3163,7 @@ <p> Two bugs in io:format for ~F.~Ps has been corrected. When length(S) >= abs(F) > P, the precision P was incorrectly - ignored. When F == P > lenght(S) the result was + ignored. When F == P > length(S) the result was incorrectly left adjusted. Bug found by Ali Yakout who also provided a fix.</p> <p> diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml index 9091a46df9..45171f814d 100644 --- a/lib/stdlib/doc/src/sys.xml +++ b/lib/stdlib/doc/src/sys.xml @@ -83,8 +83,8 @@ <p>If the modules used to implement the process change dynamically during runtime, the process must understand one more message. An example is the <seealso marker="gen_event"><c>gen_event</c></seealso> - processes. The message is <c>{get_modules, From}</c>. - The reply to this message is <c>From ! {modules, Modules}</c>, where + processes. The message is <c>{_Label, {From, Ref}, get_modules}</c>. + The reply to this message is <c>From ! {Ref, Modules}</c>, where <c>Modules</c> is a list of the currently active modules in the process.</p> <p>This message is used by the release handler to find which diff --git a/lib/stdlib/src/Makefile b/lib/stdlib/src/Makefile index d6c0ff8d8d..ed3dfb342c 100644 --- a/lib/stdlib/src/Makefile +++ b/lib/stdlib/src/Makefile @@ -130,7 +130,7 @@ HRL_FILES= \ ../include/qlc.hrl \ ../include/zip.hrl -INTERNAL_HRL_FILES= dets.hrl +INTERNAL_HRL_FILES= dets.hrl erl_tar.hrl ERL_FILES= $(MODULES:%=%.erl) @@ -228,7 +228,7 @@ $(EBIN)/dets_v9.beam: dets.hrl $(EBIN)/erl_bits.beam: ../include/erl_bits.hrl $(EBIN)/erl_compile.beam: ../include/erl_compile.hrl ../../kernel/include/file.hrl $(EBIN)/erl_lint.beam: ../include/erl_bits.hrl -$(EBIN)/erl_tar.beam: ../../kernel/include/file.hrl +$(EBIN)/erl_tar.beam: ../../kernel/include/file.hrl erl_tar.hrl $(EBIN)/file_sorter.beam: ../../kernel/include/file.hrl $(EBIN)/filelib.beam: ../../kernel/include/file.hrl $(EBIN)/filename.beam: ../../kernel/include/file.hrl diff --git a/lib/stdlib/src/base64.erl b/lib/stdlib/src/base64.erl index bf259e6691..0c8d817910 100644 --- a/lib/stdlib/src/base64.erl +++ b/lib/stdlib/src/base64.erl @@ -219,38 +219,49 @@ mime_decode_binary(Result, <<0:8,T/bits>>) -> mime_decode_binary(Result, T); mime_decode_binary(Result0, <<C:8,T/bits>>) -> case element(C, ?DECODE_MAP) of - Bits when is_integer(Bits) -> - mime_decode_binary(<<Result0/bits,Bits:6>>, T); - eq -> - case tail_contains_more(T, false) of - {<<>>, Eq} -> - %% No more valid data. - case bit_size(Result0) rem 8 of - 0 -> - %% '====' is not uncommon. - Result0; - 4 when Eq -> - %% enforce at least one more '=' only ignoring illegals and spacing - Split = byte_size(Result0) - 1, - <<Result:Split/bytes,_:4>> = Result0, - Result; - 2 -> - %% remove 2 bits - Split = byte_size(Result0) - 1, - <<Result:Split/bytes,_:2>> = Result0, - Result - end; - {More, _} -> - %% More valid data, skip the eq as invalid - mime_decode_binary(Result0, More) - end; - _ -> - mime_decode_binary(Result0, T) + Bits when is_integer(Bits) -> + mime_decode_binary(<<Result0/bits,Bits:6>>, T); + eq -> + mime_decode_binary_after_eq(Result0, T, false); + _ -> + mime_decode_binary(Result0, T) end; -mime_decode_binary(Result, <<>>) -> +mime_decode_binary(Result, _) -> true = is_binary(Result), Result. +mime_decode_binary_after_eq(Result, <<0:8,T/bits>>, Eq) -> + mime_decode_binary_after_eq(Result, T, Eq); +mime_decode_binary_after_eq(Result0, <<C:8,T/bits>>, Eq) -> + case element(C, ?DECODE_MAP) of + bad -> + mime_decode_binary_after_eq(Result0, T, Eq); + ws -> + mime_decode_binary_after_eq(Result0, T, Eq); + eq -> + mime_decode_binary_after_eq(Result0, T, true); + Bits when is_integer(Bits) -> + %% More valid data, skip the eq as invalid + mime_decode_binary(<<Result0/bits,Bits:6>>, T) + end; +mime_decode_binary_after_eq(Result0, <<>>, Eq) -> + %% No more valid data. + case bit_size(Result0) rem 8 of + 0 -> + %% '====' is not uncommon. + Result0; + 4 when Eq -> + %% enforce at least one more '=' only ignoring illegals and spacing + Split = byte_size(Result0) - 1, + <<Result:Split/bytes,_:4>> = Result0, + Result; + 2 -> + %% remove 2 bits + Split = byte_size(Result0) - 1, + <<Result:Split/bytes,_:2>> = Result0, + Result + end. + decode([], A) -> A; decode([$=,$=,C2,C1|Cs], A) -> Bits2x6 = (b64d(C1) bsl 18) bor (b64d(C2) bsl 12), diff --git a/lib/stdlib/src/c.erl b/lib/stdlib/src/c.erl index d3f9a9c7af..52df2319dd 100644 --- a/lib/stdlib/src/c.erl +++ b/lib/stdlib/src/c.erl @@ -35,7 +35,7 @@ -export([appcall/4]). -import(lists, [reverse/1,flatten/1,sublist/3,sort/1,keysort/2, - concat/1,max/1,min/1,foreach/2,foldl/3,flatmap/2]). + max/1,min/1,foreach/2,foldl/3,flatmap/2]). -import(io, [format/1, format/2]). %%----------------------------------------------------------------------- @@ -83,9 +83,11 @@ c(Module) -> c(Module, []). -spec c(Module, Options) -> {'ok', ModuleName} | 'error' when Module :: file:name(), - Options :: [compile:option()], + Options :: [compile:option()] | compile:option(), ModuleName :: module(). +c(Module, SingleOption) when not is_list(SingleOption) -> + c(Module, [SingleOption]); c(Module, Opts) when is_atom(Module) -> %% either a module name or a source file name (possibly without %% suffix); if such a source file exists, it is used to compile from diff --git a/lib/stdlib/src/edlin_expand.erl b/lib/stdlib/src/edlin_expand.erl index 5f821caef0..a1a97af4c5 100644 --- a/lib/stdlib/src/edlin_expand.erl +++ b/lib/stdlib/src/edlin_expand.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2005-2016. All Rights Reserved. +%% Copyright Ericsson AB 2005-2017. 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. @@ -101,44 +101,77 @@ match(Prefix, Alts, Extra0) -> %% Return the list of names L in multiple columns. format_matches(L) -> - S = format_col(lists:sort(L), []), + {S1, Dots} = format_col(lists:sort(L), []), + S = case Dots of + true -> + {_, Prefix} = longest_common_head(vals(L)), + PrefixLen = length(Prefix), + case PrefixLen =< 3 of + true -> S1; % Do not replace the prefix with "...". + false -> + LeadingDotsL = leading_dots(L, PrefixLen), + {S2, _} = format_col(lists:sort(LeadingDotsL), []), + S2 + end; + false -> S1 + end, ["\n" | S]. format_col([], _) -> []; -format_col(L, Acc) -> format_col(L, field_width(L), 0, Acc). - -format_col(X, Width, Len, Acc) when Width + Len > 79 -> - format_col(X, Width, 0, ["\n" | Acc]); -format_col([A|T], Width, Len, Acc0) -> - H = case A of - %% If it's a tuple {string(), integer()}, we assume it's an - %% arity, and meant to be printed. - {H0, I} when is_integer(I) -> - H0 ++ "/" ++ integer_to_list(I); - {H1, _} -> H1; - H2 -> H2 - end, - Acc = [io_lib:format("~-*ts", [Width,H]) | Acc0], - format_col(T, Width, Len+Width, Acc); -format_col([], _, _, Acc) -> - lists:reverse(Acc, "\n"). - -field_width(L) -> field_width(L, 0). - -field_width([{H,_}|T], W) -> +format_col(L, Acc) -> + LL = 79, + format_col(L, field_width(L, LL), 0, Acc, LL, false). + +format_col(X, Width, Len, Acc, LL, Dots) when Width + Len > LL -> + format_col(X, Width, 0, ["\n" | Acc], LL, Dots); +format_col([A|T], Width, Len, Acc0, LL, Dots) -> + {H0, R} = format_val(A), + Hmax = LL - length(R), + {H, NewDots} = + case length(H0) > Hmax of + true -> {io_lib:format("~-*ts", [Hmax - 3, H0]) ++ "...", true}; + false -> {H0, Dots} + end, + Acc = [io_lib:format("~-*ts", [Width, H ++ R]) | Acc0], + format_col(T, Width, Len+Width, Acc, LL, NewDots); +format_col([], _, _, Acc, _LL, Dots) -> + {lists:reverse(Acc, "\n"), Dots}. + +format_val({H, I}) when is_integer(I) -> + %% If it's a tuple {string(), integer()}, we assume it's an + %% arity, and meant to be printed. + {H, "/" ++ integer_to_list(I)}; +format_val({H, _}) -> + {H, ""}; +format_val(H) -> + {H, ""}. + +field_width(L, LL) -> field_width(L, 0, LL). + +field_width([{H,_}|T], W, LL) -> case length(H) of - L when L > W -> field_width(T, L); - _ -> field_width(T, W) + L when L > W -> field_width(T, L, LL); + _ -> field_width(T, W, LL) end; -field_width([H|T], W) -> +field_width([H|T], W, LL) -> case length(H) of - L when L > W -> field_width(T, L); - _ -> field_width(T, W) + L when L > W -> field_width(T, L, LL); + _ -> field_width(T, W, LL) end; -field_width([], W) when W < 40 -> +field_width([], W, LL) when W < LL - 3 -> W + 4; -field_width([], _) -> - 40. +field_width([], _, LL) -> + LL. + +vals([]) -> []; +vals([{S, _}|L]) -> [S|vals(L)]; +vals([S|L]) -> [S|vals(L)]. + +leading_dots([], _Len) -> []; +leading_dots([{H, I}|L], Len) -> + [{"..." ++ nthtail(Len, H), I}|leading_dots(L, Len)]; +leading_dots([H|L], Len) -> + ["..." ++ nthtail(Len, H)|leading_dots(L, Len)]. longest_common_head([]) -> no; diff --git a/lib/stdlib/src/erl_expand_records.erl b/lib/stdlib/src/erl_expand_records.erl index 2280464bff..16220bceb4 100644 --- a/lib/stdlib/src/erl_expand_records.erl +++ b/lib/stdlib/src/erl_expand_records.erl @@ -30,13 +30,13 @@ -import(lists, [map/2,foldl/3,foldr/3,sort/1,reverse/1,duplicate/2]). --record(exprec, {compile=[], % Compile flags - vcount=0, % Variable counter - calltype=#{}, % Call types - records=dict:new(), % Record definitions - strict_ra=[], % strict record accesses - checked_ra=[] % successfully accessed records - }). +-record(exprec, {compile=[], % Compile flags + vcount=0, % Variable counter + calltype=#{}, % Call types + records=#{}, % Record definitions + strict_ra=[], % strict record accesses + checked_ra=[] % successfully accessed records + }). -spec(module(AbsForms, CompileOptions) -> AbsForms2 when AbsForms :: [erl_parse:abstract_form()], @@ -72,7 +72,7 @@ init_calltype_imports([], Ctype) -> Ctype. forms([{attribute,_,record,{Name,Defs}}=Attr | Fs], St0) -> NDefs = normalise_fields(Defs), - St = St0#exprec{records=dict:store(Name, NDefs, St0#exprec.records)}, + St = St0#exprec{records=maps:put(Name, NDefs, St0#exprec.records)}, {Fs1, St1} = forms(Fs, St), {[Attr | Fs1], St1}; forms([{function,L,N,A,Cs0} | Fs0], St0) -> @@ -546,7 +546,7 @@ normalise_fields(Fs) -> %% record_fields(RecordName, State) %% find_field(FieldName, Fields) -record_fields(R, St) -> dict:fetch(R, St#exprec.records). +record_fields(R, St) -> maps:get(R, St#exprec.records). find_field(F, [{record_field,_,{atom,_,F},Val} | _]) -> {ok,Val}; find_field(F, [_ | Fs]) -> find_field(F, Fs); diff --git a/lib/stdlib/src/erl_tar.erl b/lib/stdlib/src/erl_tar.erl index a383a0fc67..086e77cd28 100644 --- a/lib/stdlib/src/erl_tar.erl +++ b/lib/stdlib/src/erl_tar.erl @@ -1,8 +1,8 @@ %% %% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. -%% +%% +%% Copyright Ericsson AB 1997-2017. 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 @@ -14,191 +14,245 @@ %% 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% %% +%% This module implements extraction/creation of tar archives. +%% It supports reading most common tar formats, namely V7, STAR, +%% USTAR, GNU, BSD/libarchive, and PAX. It produces archives in USTAR +%% format, unless it must use PAX headers, in which case it produces PAX +%% format. +%% +%% The following references where used: +%% http://www.freebsd.org/cgi/man.cgi?query=tar&sektion=5 +%% http://www.gnu.org/software/tar/manual/html_node/Standard.html +%% http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html -module(erl_tar). -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%% Purpose: Unix tar (tape archive) utility. -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - --export([init/3, create/2, create/3, extract/1, extract/2, table/1, table/2, - open/2, close/1, add/3, add/4, - t/1, tt/1, format_error/1]). +-export([init/3, + create/2, create/3, + extract/1, extract/2, + table/1, table/2, t/1, tt/1, + open/2, close/1, + add/3, add/4, + format_error/1]). -include_lib("kernel/include/file.hrl"). +-include_lib("erl_tar.hrl"). --record(add_opts, - {read_info, % Fun to use for read file/link info. - chunk_size = 0, % For file reading when sending to sftp. 0=do not chunk - verbose = false :: boolean()}). % Verbose on/off. - -%% Opens a tar archive. - -init(UsrHandle, AccessMode, Fun) when is_function(Fun,2) -> - {ok, {AccessMode,{tar_descriptor,UsrHandle,Fun}}}. - -%%%================================================================ -%%% The open function with friends is to keep the file and binary api of this module -open(Name, Mode) -> - case open_mode(Mode) of - {ok, Access, Raw, Opts} -> - open1(Name, Access, Raw, Opts); - {error, Reason} -> - {error, {Name, Reason}} - end. - -open1({binary,Bin}, read, _Raw, Opts) -> - case file:open(Bin, [ram,binary,read]) of - {ok,File} -> - _ = [ram_file:uncompress(File) || Opts =:= [compressed]], - init(File,read,file_fun()); - Error -> - Error - end; -open1({file, Fd}, read, _Raw, _Opts) -> - init(Fd, read, file_fun()); -open1(Name, Access, Raw, Opts) -> - case file:open(Name, Raw ++ [binary, Access|Opts]) of - {ok, File} -> - init(File, Access, file_fun()); - {error, Reason} -> - {error, {Name, Reason}} - end. - -file_fun() -> - fun(write, {Fd,Data}) -> file:write(Fd, Data); - (position, {Fd,Pos}) -> file:position(Fd, Pos); - (read2, {Fd,Size}) -> file:read(Fd,Size); - (close, Fd) -> file:close(Fd) - end. - -%%% End of file and binary api (except for open_mode/1 downwards -%%%================================================================ - -%% Closes a tar archive. - -close({read, File}) -> - ok = do_close(File); -close({write, File}) -> - PadResult = pad_file(File), - ok = do_close(File), - PadResult; -close(_) -> - {error, einval}. - -%% Adds a file to a tape archive. - -add(File, Name, Options) -> - add(File, Name, Name, Options). -add({write, File}, Name, NameInArchive, Options) -> - Opts = #add_opts{read_info=fun(F) -> file:read_link_info(F) end}, - add1(File, Name, NameInArchive, add_opts(Options, Opts)); -add({read, _File}, _, _, _) -> - {error, eacces}; -add(_, _, _, _) -> - {error, einval}. - -add_opts([dereference|T], Opts) -> - add_opts(T, Opts#add_opts{read_info=fun(F) -> file:read_file_info(F) end}); -add_opts([verbose|T], Opts) -> - add_opts(T, Opts#add_opts{verbose=true}); -add_opts([{chunks,N}|T], Opts) -> - add_opts(T, Opts#add_opts{chunk_size=N}); -add_opts([_|T], Opts) -> - add_opts(T, Opts); -add_opts([], Opts) -> - Opts. - -%% Creates a tar file Name containing the given files. - -create(Name, Filenames) -> - create(Name, Filenames, []). - -%% Creates a tar archive Name containing the given files. -%% Accepted options: verbose, compressed, cooked +%% Converts the short error reason to a descriptive string. +-spec format_error(term()) -> string(). +format_error(invalid_tar_checksum) -> + "Checksum failed"; +format_error(bad_header) -> + "Unrecognized tar header format"; +format_error({bad_header, Reason}) -> + lists:flatten(io_lib:format("Unrecognized tar header format: ~p", [Reason])); +format_error({invalid_header, negative_size}) -> + "Invalid header: negative size"; +format_error(invalid_sparse_header_size) -> + "Invalid sparse header: negative size"; +format_error(invalid_sparse_map_entry) -> + "Invalid sparse map entry"; +format_error({invalid_sparse_map_entry, Reason}) -> + lists:flatten(io_lib:format("Invalid sparse map entry: ~p", [Reason])); +format_error(invalid_end_of_archive) -> + "Invalid end of archive"; +format_error(eof) -> + "Unexpected end of file"; +format_error(integer_overflow) -> + "Failed to parse numeric: integer overflow"; +format_error({misaligned_read, Pos}) -> + lists:flatten(io_lib:format("Read a block which was misaligned: block_size=~p pos=~p", + [?BLOCK_SIZE, Pos])); +format_error(invalid_gnu_1_0_sparsemap) -> + "Invalid GNU sparse map (version 1.0)"; +format_error({invalid_gnu_0_1_sparsemap, Format}) -> + lists:flatten(io_lib:format("Invalid GNU sparse map (version ~s)", [Format])); +format_error({Name,Reason}) -> + lists:flatten(io_lib:format("~ts: ~ts", [Name,format_error(Reason)])); +format_error(Atom) when is_atom(Atom) -> + file:format_error(Atom); +format_error(Term) -> + lists:flatten(io_lib:format("~tp", [Term])). -create(Name, FileList, Options) -> - Mode = lists:filter(fun(X) -> (X=:=compressed) or (X=:=cooked) - end, Options), - case open(Name, [write|Mode]) of - {ok, TarFile} -> - Add = fun({NmInA, NmOrBin}) -> - add(TarFile, NmOrBin, NmInA, Options); - (Nm) -> - add(TarFile, Nm, Nm, Options) - end, - Result = foreach_while_ok(Add, FileList), - case {Result, close(TarFile)} of - {ok, Res} -> Res; - {Res, _} -> Res - end; - Reason -> - Reason - end. +%% Initializes a new reader given a custom file handle and I/O wrappers +-spec init(handle(), write | read, file_op()) -> {ok, reader()} | {error, badarg}. +init(Handle, AccessMode, Fun) when is_function(Fun, 2) -> + Reader = #reader{handle=Handle,access=AccessMode,func=Fun}, + {ok, Pos, Reader2} = do_position(Reader, {cur, 0}), + {ok, Reader2#reader{pos=Pos}}; +init(_Handle, _AccessMode, _Fun) -> + {error, badarg}. +%%%================================================================ %% Extracts all files from the tar file Name. - +-spec extract(open_handle()) -> ok | {error, term()}. extract(Name) -> extract(Name, []). %% Extracts (all) files from the tar file Name. -%% Options accepted: keep_old_files, {files, ListOfFilesToExtract}, verbose, -%% {cwd, AbsoluteDirectory} +%% Options accepted: +%% - cooked: Opens the tar file without mode `raw` +%% - compressed: Uncompresses the tar file when reading +%% - memory: Returns the tar contents as a list of tuples {Name, Bin} +%% - keep_old_files: Extracted files will not overwrite the destination +%% - {files, ListOfFilesToExtract}: Only extract ListOfFilesToExtract +%% - verbose: Prints verbose information about the extraction, +%% - {cwd, AbsoluteDir}: Sets the current working directory for the extraction +-spec extract(open_handle(), [extract_opt()]) -> + ok + | {ok, [{string(), binary()}]} + | {error, term()}. +extract({binary, Bin}, Opts) when is_list(Opts) -> + do_extract({binary, Bin}, Opts); +extract({file, Fd}, Opts) when is_list(Opts) -> + do_extract({file, Fd}, Opts); +extract(#reader{}=Reader, Opts) when is_list(Opts) -> + do_extract(Reader, Opts); +extract(Name, Opts) when is_list(Name); is_binary(Name), is_list(Opts) -> + do_extract(Name, Opts). + +do_extract(Handle, Opts) when is_list(Opts) -> + Opts2 = extract_opts(Opts), + Acc = if Opts2#read_opts.output =:= memory -> []; true -> ok end, + foldl_read(Handle, fun extract1/4, Acc, Opts2). + +extract1(eof, Reader, _, Acc) when is_list(Acc) -> + {ok, {ok, lists:reverse(Acc)}, Reader}; +extract1(eof, Reader, _, Acc) -> + {ok, Acc, Reader}; +extract1(#tar_header{name=Name,size=Size}=Header, Reader, Opts, Acc) -> + case check_extract(Name, Opts) of + true -> + case do_read(Reader, Size) of + {ok, Bin, Reader2} -> + case write_extracted_element(Header, Bin, Opts) of + ok -> + {ok, Acc, Reader2}; + {ok, NameBin} when is_list(Acc) -> + {ok, [NameBin | Acc], Reader2}; + {error, _} = Err -> + throw(Err) + end; + {error, _} = Err -> + throw(Err) + end; + false -> + {ok, Acc, skip_file(Reader)} + end. -extract(Name, Opts) -> - foldl_read(Name, fun extract1/4, ok, extract_opts(Opts)). +%% Checks if the file Name should be extracted. +check_extract(_, #read_opts{files=all}) -> + true; +check_extract(Name, #read_opts{files=Files}) -> + ordsets:is_element(Name, Files). -%% Returns a list of names of the files in the tar file Name. -%% Options accepted: verbose +%%%================================================================ +%% The following table functions produce a list of information about +%% the files contained in the archive. +-type filename() :: string(). +-type typeflag() :: regular | link | symlink | + char | block | directory | + fifo | reserved | unknown. +-type mode() :: non_neg_integer(). +-type uid() :: non_neg_integer(). +-type gid() :: non_neg_integer(). + +-type tar_entry() :: {filename(), + typeflag(), + non_neg_integer(), + calendar:datetime(), + mode(), + uid(), + gid()}. +%% Returns a list of names of the files in the tar file Name. +-spec table(open_handle()) -> {ok, [string()]} | {error, term()}. table(Name) -> table(Name, []). %% Returns a list of names of the files in the tar file Name. %% Options accepted: compressed, verbose, cooked. - -table(Name, Opts) -> +-spec table(open_handle(), [compressed | verbose | cooked]) -> + {ok, [tar_entry()]} | {error, term()}. +table(Name, Opts) when is_list(Opts) -> foldl_read(Name, fun table1/4, [], table_opts(Opts)). +table1(eof, Reader, _, Result) -> + {ok, {ok, lists:reverse(Result)}, Reader}; +table1(#tar_header{}=Header, Reader, #read_opts{verbose=Verbose}, Result) -> + Attrs = table1_attrs(Header, Verbose), + Reader2 = skip_file(Reader), + {ok, [Attrs|Result], Reader2}. + +%% Extracts attributes relevant to table1's output +table1_attrs(#tar_header{typeflag=Typeflag,mode=Mode}=Header, true) -> + Type = typeflag(Typeflag), + Name = Header#tar_header.name, + Mtime = Header#tar_header.mtime, + Uid = Header#tar_header.uid, + Gid = Header#tar_header.gid, + Size = Header#tar_header.size, + {Name, Type, Size, Mtime, Mode, Uid, Gid}; +table1_attrs(#tar_header{name=Name}, _Verbose) -> + Name. + +typeflag(?TYPE_REGULAR) -> regular; +typeflag(?TYPE_REGULAR_A) -> regular; +typeflag(?TYPE_GNU_SPARSE) -> regular; +typeflag(?TYPE_CONT) -> regular; +typeflag(?TYPE_LINK) -> link; +typeflag(?TYPE_SYMLINK) -> symlink; +typeflag(?TYPE_CHAR) -> char; +typeflag(?TYPE_BLOCK) -> block; +typeflag(?TYPE_DIR) -> directory; +typeflag(?TYPE_FIFO) -> fifo; +typeflag(_) -> unknown. +%%%================================================================ %% Comments for printing the contents of a tape archive, %% meant to be invoked from the shell. -t(Name) -> +%% Prints each filename in the archive +-spec t(file:filename()) -> ok | {error, term()}. +t(Name) when is_list(Name); is_binary(Name) -> case table(Name) of - {ok, List} -> - lists:foreach(fun(N) -> ok = io:format("~ts\n", [N]) end, List); - Error -> - Error + {ok, List} -> + lists:foreach(fun(N) -> ok = io:format("~ts\n", [N]) end, List); + Error -> + Error end. +%% Prints verbose information about each file in the archive +-spec tt(open_handle()) -> ok | {error, term()}. tt(Name) -> case table(Name, [verbose]) of - {ok, List} -> - lists:foreach(fun print_header/1, List); - Error -> - Error + {ok, List} -> + lists:foreach(fun print_header/1, List); + Error -> + Error end. +%% Used by tt/1 to print a tar_entry tuple +-spec print_header(tar_entry()) -> ok. print_header({Name, Type, Size, Mtime, Mode, Uid, Gid}) -> io:format("~s~s ~4w/~-4w ~7w ~s ~s\n", - [type_to_string(Type), mode_to_string(Mode), - Uid, Gid, Size, time_to_string(Mtime), Name]). + [type_to_string(Type), mode_to_string(Mode), + Uid, Gid, Size, time_to_string(Mtime), Name]). -type_to_string(regular) -> "-"; +type_to_string(regular) -> "-"; type_to_string(directory) -> "d"; -type_to_string(link) -> "l"; -type_to_string(symlink) -> "s"; -type_to_string(char) -> "c"; -type_to_string(block) -> "b"; -type_to_string(fifo) -> "f"; -type_to_string(_) -> "?". - +type_to_string(link) -> "l"; +type_to_string(symlink) -> "s"; +type_to_string(char) -> "c"; +type_to_string(block) -> "b"; +type_to_string(fifo) -> "f"; +type_to_string(unknown) -> "?". + +%% Converts a numeric mode to its human-readable representation mode_to_string(Mode) -> mode_to_string(Mode, "xwrxwrxwr", []). - mode_to_string(Mode, [C|T], Acc) when Mode band 1 =:= 1 -> mode_to_string(Mode bsr 1, T, [C|Acc]); mode_to_string(Mode, [_|T], Acc) -> @@ -206,6 +260,7 @@ mode_to_string(Mode, [_|T], Acc) -> mode_to_string(_, [], Acc) -> Acc. +%% Converts a datetime tuple to a readable string time_to_string({{Y, Mon, Day}, {H, Min, _}}) -> io_lib:format("~s ~2w ~s:~s ~w", [month(Mon), Day, two_d(H), two_d(Min), Y]). @@ -225,809 +280,1608 @@ month(10) -> "Oct"; month(11) -> "Nov"; month(12) -> "Dec". -%% Converts the short error reason to a descriptive string. +%%%================================================================ +%% The open function with friends is to keep the file and binary api of this module +-type open_handle() :: file:filename() + | {binary, binary()} + | {file, term()}. +-spec open(open_handle(), [write | compressed | cooked]) -> + {ok, reader()} | {error, term()}. +open({binary, Bin}, Mode) when is_binary(Bin) -> + do_open({binary, Bin}, Mode); +open({file, Fd}, Mode) -> + do_open({file, Fd}, Mode); +open(Name, Mode) when is_list(Name); is_binary(Name) -> + do_open(Name, Mode). + +do_open(Name, Mode) when is_list(Mode) -> + case open_mode(Mode) of + {ok, Access, Raw, Opts} -> + open1(Name, Access, Raw, Opts); + {error, Reason} -> + {error, {Name, Reason}} + end. -format_error(bad_header) -> "Bad directory header"; -format_error(eof) -> "Unexpected end of file"; -format_error(symbolic_link_too_long) -> "Symbolic link too long"; -format_error({Name,Reason}) -> - lists:flatten(io_lib:format("~ts: ~ts", [Name,format_error(Reason)])); -format_error(Atom) when is_atom(Atom) -> - file:format_error(Atom); -format_error(Term) -> - lists:flatten(io_lib:format("~tp", [Term])). +open1({binary,Bin}, read, _Raw, Opts) when is_binary(Bin) -> + case file:open(Bin, [ram,binary,read]) of + {ok,File} -> + _ = [ram_file:uncompress(File) || Opts =:= [compressed]], + {ok, #reader{handle=File,access=read,func=fun file_op/2}}; + Error -> + Error + end; +open1({file, Fd}, read, _Raw, _Opts) -> + Reader = #reader{handle=Fd,access=read,func=fun file_op/2}, + case do_position(Reader, {cur, 0}) of + {ok, Pos, Reader2} -> + {ok, Reader2#reader{pos=Pos}}; + {error, _} = Err -> + Err + end; +open1(Name, Access, Raw, Opts) when is_list(Name) or is_binary(Name) -> + case file:open(Name, Raw ++ [binary, Access|Opts]) of + {ok, File} -> + {ok, #reader{handle=File,access=Access,func=fun file_op/2}}; + {error, Reason} -> + {error, {Name, Reason}} + end. +open_mode(Mode) -> + open_mode(Mode, false, [raw], []). -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%%% -%%% Useful definitions (also start of implementation). -%%% -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -%% Offset for fields in the tar header. -%% Note that these offsets are ZERO-based as in the POSIX standard -%% document, while binaries use ONE-base offset. Caveat Programmer. - --define(th_name, 0). --define(th_mode, 100). --define(th_uid, 108). --define(th_gid, 116). --define(th_size, 124). --define(th_mtime, 136). --define(th_chksum, 148). --define(th_typeflag, 156). --define(th_linkname, 157). --define(th_magic, 257). --define(th_version, 263). --define(th_prefix, 345). - -%% Length of these fields. - --define(th_name_len, 100). --define(th_mode_len, 8). --define(th_uid_len, 8). --define(th_gid_len, 8). --define(th_size_len, 12). --define(th_mtime_len, 12). --define(th_chksum_len, 8). --define(th_linkname_len, 100). --define(th_magic_len, 6). --define(th_version_len, 2). --define(th_prefix_len, 167). - --record(tar_header, - {name, % Name of file. - mode, % Mode bits. - uid, % User id. - gid, % Group id. - size, % Size of file - mtime, % Last modified (seconds since - % Jan 1, 1970). - chksum, % Checksum of header. - typeflag = [], % Type of file. - linkname = [], % Name of link. - filler = [], - prefix}). % Filename prefix. - --define(record_size, 512). --define(block_size, (512*20)). - - - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%%% -%%% Adding members to a tar archive. -%%% -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -add1(TarFile, Bin, NameInArchive, Opts) when is_binary(Bin) -> - Now = calendar:now_to_local_time(erlang:timestamp()), - Info = #file_info{size = byte_size(Bin), - type = regular, - access = read_write, - atime = Now, - mtime = Now, - ctime = Now, - mode = 8#100644, - links = 1, - major_device = 0, - minor_device = 0, - inode = 0, - uid = 0, - gid = 0}, - Header = create_header(NameInArchive, Info), - add1(TarFile, NameInArchive, Header, Bin, Opts); -add1(TarFile, Name, NameInArchive, Opts) -> - case read_file_and_info(Name, Opts) of - {ok, Bin, Info} when Info#file_info.type =:= regular -> - Header = create_header(NameInArchive, Info), - add1(TarFile, Name, Header, Bin, Opts); - {ok, PointsTo, Info} when Info#file_info.type =:= symlink -> - if - length(PointsTo) > 100 -> - {error,{PointsTo,symbolic_link_too_long}}; - true -> - Info2 = Info#file_info{size=0}, - Header = create_header(NameInArchive, Info2, PointsTo), - add1(TarFile, Name, Header, list_to_binary([]), Opts) - end; - {ok, _, Info} when Info#file_info.type =:= directory -> - add_directory(TarFile, Name, NameInArchive, Info, Opts); - {ok, _, #file_info{type=Type}} -> - {error, {bad_file_type, Name, Type}}; - {error, Reason} -> - {error, {Name, Reason}} +open_mode(read, _, Raw, _) -> + {ok, read, Raw, []}; +open_mode(write, _, Raw, _) -> + {ok, write, Raw, []}; +open_mode([read|Rest], false, Raw, Opts) -> + open_mode(Rest, read, Raw, Opts); +open_mode([write|Rest], false, Raw, Opts) -> + open_mode(Rest, write, Raw, Opts); +open_mode([compressed|Rest], Access, Raw, Opts) -> + open_mode(Rest, Access, Raw, [compressed|Opts]); +open_mode([cooked|Rest], Access, _Raw, Opts) -> + open_mode(Rest, Access, [], Opts); +open_mode([], Access, Raw, Opts) -> + {ok, Access, Raw, Opts}; +open_mode(_, _, _, _) -> + {error, einval}. + +file_op(write, {Fd, Data}) -> + file:write(Fd, Data); +file_op(position, {Fd, Pos}) -> + file:position(Fd, Pos); +file_op(read2, {Fd, Size}) -> + file:read(Fd, Size); +file_op(close, Fd) -> + file:close(Fd). + +%% Closes a tar archive. +-spec close(reader()) -> ok | {error, term()}. +close(#reader{access=read}=Reader) -> + ok = do_close(Reader); +close(#reader{access=write}=Reader) -> + {ok, Reader2} = pad_file(Reader), + ok = do_close(Reader2), + ok; +close(_) -> + {error, einval}. + +pad_file(#reader{pos=Pos}=Reader) -> + %% There must be at least two zero blocks at the end. + PadCurrent = skip_padding(Pos+?BLOCK_SIZE), + Padding = <<0:PadCurrent/unit:8>>, + do_write(Reader, [Padding, ?ZERO_BLOCK, ?ZERO_BLOCK]). + + +%%%================================================================ +%% Creation/modification of tar archives + +%% Creates a tar file Name containing the given files. +-spec create(file:filename(), filelist()) -> ok | {error, {string(), term()}}. +create(Name, FileList) when is_list(Name); is_binary(Name) -> + create(Name, FileList, []). + +%% Creates a tar archive Name containing the given files. +%% Accepted options: verbose, compressed, cooked +-spec create(file:filename(), filelist(), [create_opt()]) -> + ok | {error, term()} | {error, {string(), term()}}. +create(Name, FileList, Options) when is_list(Name); is_binary(Name) -> + Mode = lists:filter(fun(X) -> (X=:=compressed) or (X=:=cooked) + end, Options), + case open(Name, [write|Mode]) of + {ok, TarFile} -> + do_create(TarFile, FileList, Options); + {error, _} = Err -> + Err end. -add1(Tar, Name, Header, chunked, Options) -> - add_verbose(Options, "a ~ts [chunked ", [Name]), - try - ok = do_write(Tar, Header), - {ok,D} = file:open(Name, [read,binary]), - {ok,NumBytes} = add_read_write_chunks(D, Tar, Options#add_opts.chunk_size, 0, Options), - _ = file:close(D), - ok = do_write(Tar, padding(NumBytes,?record_size)) - of - ok -> - add_verbose(Options, "~n", []), - ok - catch - error:{badmatch,{error,Error}} -> - add_verbose(Options, "~n", []), - {error,{Name,Error}} +do_create(TarFile, [], _Opts) -> + close(TarFile); +do_create(TarFile, [{NameInArchive, NameOrBin}|Rest], Opts) -> + case add(TarFile, NameOrBin, NameInArchive, Opts) of + ok -> + do_create(TarFile, Rest, Opts); + {error, _} = Err -> + _ = close(TarFile), + Err end; -add1(Tar, Name, Header, Bin, Options) -> - add_verbose(Options, "a ~ts~n", [Name]), - do_write(Tar, [Header, Bin, padding(byte_size(Bin), ?record_size)]). - -add_read_write_chunks(D, Tar, ChunkSize, SumNumBytes, Options) -> - case file:read(D, ChunkSize) of - {ok,Bin} -> - ok = do_write(Tar, Bin), - add_verbose(Options, ".", []), - add_read_write_chunks(D, Tar, ChunkSize, SumNumBytes+byte_size(Bin), Options); - eof -> - add_verbose(Options, "]", []), - {ok,SumNumBytes}; - Other -> - Other +do_create(TarFile, [Name|Rest], Opts) -> + case add(TarFile, Name, Name, Opts) of + ok -> + do_create(TarFile, Rest, Opts); + {error, _} = Err -> + _ = close(TarFile), + Err end. -add_directory(TarFile, DirName, NameInArchive, Info, Options) -> +%% Adds a file to a tape archive. +-type add_type() :: string() + | {string(), string()} + | {string(), binary()}. +-spec add(reader(), add_type(), [add_opt()]) -> ok | {error, term()}. +add(Reader, {NameInArchive, Name}, Opts) + when is_list(NameInArchive), is_list(Name) -> + do_add(Reader, Name, NameInArchive, Opts); +add(Reader, {NameInArchive, Bin}, Opts) + when is_list(NameInArchive), is_binary(Bin) -> + do_add(Reader, Bin, NameInArchive, Opts); +add(Reader, Name, Opts) when is_list(Name) -> + do_add(Reader, Name, Name, Opts). + + +-spec add(reader(), string() | binary(), string(), [add_opt()]) -> + ok | {error, term()}. +add(Reader, NameOrBin, NameInArchive, Options) + when is_list(NameOrBin); is_binary(NameOrBin), + is_list(NameInArchive), is_list(Options) -> + do_add(Reader, NameOrBin, NameInArchive, Options). + +do_add(#reader{access=write}=Reader, Name, NameInArchive, Options) + when is_list(NameInArchive), is_list(Options) -> + Opts = #add_opts{read_info=fun(F) -> file:read_link_info(F) end}, + add1(Reader, Name, NameInArchive, add_opts(Options, Opts)); +do_add(#reader{access=read},_,_,_) -> + {error, eacces}; +do_add(Reader,_,_,_) -> + {error, {badarg, Reader}}. + +add_opts([dereference|T], Opts) -> + add_opts(T, Opts#add_opts{read_info=fun(F) -> file:read_file_info(F) end}); +add_opts([verbose|T], Opts) -> + add_opts(T, Opts#add_opts{verbose=true}); +add_opts([{chunks,N}|T], Opts) -> + add_opts(T, Opts#add_opts{chunk_size=N}); +add_opts([_|T], Opts) -> + add_opts(T, Opts); +add_opts([], Opts) -> + Opts. + +add1(#reader{}=Reader, Name, NameInArchive, #add_opts{read_info=ReadInfo}=Opts) + when is_list(Name) -> + Res = case ReadInfo(Name) of + {error, Reason0} -> + {error, {Name, Reason0}}; + {ok, #file_info{type=symlink}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + {ok, Linkname} = file:read_link(Name), + Header = fileinfo_to_header(NameInArchive, Fi, Linkname), + add_header(Reader, Header, Opts); + {ok, #file_info{type=regular}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Header = fileinfo_to_header(NameInArchive, Fi, false), + {ok, Reader2} = add_header(Reader, Header, Opts), + FileSize = Header#tar_header.size, + {ok, FileSize, Reader3} = do_copy(Reader2, Name, Opts), + Padding = skip_padding(FileSize), + Pad = <<0:Padding/unit:8>>, + do_write(Reader3, Pad); + {ok, #file_info{type=directory}=Fi} -> + add_directory(Reader, Name, NameInArchive, Fi, Opts); + {ok, #file_info{}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Header = fileinfo_to_header(NameInArchive, Fi, false), + add_header(Reader, Header, Opts) + end, + case Res of + ok -> ok; + {ok, _Reader} -> ok; + {error, _Reason} = Err -> Err + end; +add1(Reader, Bin, NameInArchive, Opts) when is_binary(Bin) -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Now = calendar:now_to_local_time(erlang:timestamp()), + Header = #tar_header{ + name = NameInArchive, + size = byte_size(Bin), + typeflag = ?TYPE_REGULAR, + atime = Now, + mtime = Now, + ctime = Now, + mode = 8#100644}, + {ok, Reader2} = add_header(Reader, Header, Opts), + Padding = skip_padding(byte_size(Bin)), + Data = [Bin, <<0:Padding/unit:8>>], + case do_write(Reader2, Data) of + {ok, _Reader3} -> ok; + {error, Reason} -> {error, {NameInArchive, Reason}} + end. + +add_directory(Reader, DirName, NameInArchive, Info, Opts) -> case file:list_dir(DirName) of - {ok, []} -> - add_verbose(Options, "a ~ts~n", [DirName]), - Header = create_header(NameInArchive, Info), - do_write(TarFile, Header); - {ok, Files} -> - Add = fun (File) -> - add1(TarFile, - filename:join(DirName, File), - filename:join(NameInArchive, File), - Options) end, - foreach_while_ok(Add, Files); - {error, Reason} -> - {error, {DirName, Reason}} + {ok, []} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Header = fileinfo_to_header(NameInArchive, Info, false), + add_header(Reader, Header, Opts); + {ok, Files} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + try add_files(Reader, Files, DirName, NameInArchive, Opts) of + ok -> ok; + {error, _} = Err -> Err + catch + throw:{error, {_Name, _Reason}} = Err -> Err; + throw:{error, Reason} -> {error, {DirName, Reason}} + end; + {error, Reason} -> + {error, {DirName, Reason}} end. - -%% Creates a header for file in a tar file. - -create_header(Name, Info) -> - create_header(Name, Info, []). -create_header(Name, #file_info {mode=Mode, uid=Uid, gid=Gid, - size=Size, mtime=Mtime0, type=Type}, Linkname) -> - Mtime = posix_time(erlang:localtime_to_universaltime(Mtime0)), - {Prefix,Suffix} = split_filename(Name), - H0 = [to_string(Suffix, 100), - to_octal(Mode, 8), - to_octal(Uid, 8), - to_octal(Gid, 8), - to_octal(Size, ?th_size_len), - to_octal(Mtime, ?th_mtime_len), - <<" ">>, - file_type(Type), - to_string(Linkname, ?th_linkname_len), - "ustar",0, - "00", - zeroes(?th_prefix-?th_version-?th_version_len), - to_string(Prefix, ?th_prefix_len)], - H = list_to_binary(H0), - 512 = byte_size(H), %Assertion. - ChksumString = to_octal(checksum(H), 6, [0,$\s]), - <<Before:?th_chksum/binary,_:?th_chksum_len/binary,After/binary>> = H, - [Before,ChksumString,After]. - -file_type(regular) -> $0; -file_type(symlink) -> $2; -file_type(directory) -> $5. - -to_octal(Int, Count) when Count > 1 -> - to_octal(Int, Count-1, [0]). - -to_octal(_, 0, Result) -> Result; -to_octal(Int, Count, Result) -> - to_octal(Int div 8, Count-1, [Int rem 8 + $0|Result]). - -to_string(Str0, Count) -> - Str = case file:native_name_encoding() of - utf8 -> - unicode:characters_to_binary(Str0); - latin1 -> - list_to_binary(Str0) - end, - case byte_size(Str) of - Size when Size < Count -> - [Str|zeroes(Count-Size)]; - _ -> Str + +add_files(_Reader, [], _Dir, _DirInArchive, _Opts) -> + ok; +add_files(Reader, [Name|Rest], Dir, DirInArchive, #add_opts{read_info=Info}=Opts) -> + FullName = filename:join(Dir, Name), + NameInArchive = filename:join(DirInArchive, Name), + Res = case Info(FullName) of + {error, Reason} -> + {error, {FullName, Reason}}; + {ok, #file_info{type=directory}=Fi} -> + add_directory(Reader, FullName, NameInArchive, Fi, Opts); + {ok, #file_info{type=symlink}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + {ok, Linkname} = file:read_link(FullName), + Header = fileinfo_to_header(NameInArchive, Fi, Linkname), + add_header(Reader, Header, Opts); + {ok, #file_info{type=regular}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Header = fileinfo_to_header(NameInArchive, Fi, false), + {ok, Reader2} = add_header(Reader, Header, Opts), + FileSize = Header#tar_header.size, + {ok, FileSize, Reader3} = do_copy(Reader2, FullName, Opts), + Padding = skip_padding(FileSize), + Pad = <<0:Padding/unit:8>>, + do_write(Reader3, Pad); + {ok, #file_info{}=Fi} -> + add_verbose(Opts, "a ~ts~n", [NameInArchive]), + Header = fileinfo_to_header(NameInArchive, Fi, false), + add_header(Reader, Header, Opts) + end, + case Res of + ok -> add_files(Reader, Rest, Dir, DirInArchive, Opts); + {ok, ReaderNext} -> add_files(ReaderNext, Rest, Dir, DirInArchive, Opts); + {error, _} = Err -> Err end. -%% Pads out end of file. - -pad_file(File) -> - {ok,Position} = do_position(File, {cur,0}), - %% There must be at least two zero records at the end. - Fill = case ?block_size - (Position rem ?block_size) of - Fill0 when Fill0 < 2*?record_size -> - %% We need to another block here to ensure that there - %% are at least two zero records at the end. - Fill0 + ?block_size; - Fill0 -> - %% Large enough. - Fill0 - end, - do_write(File, zeroes(Fill)). - -split_filename(Name) when length(Name) =< ?th_name_len -> - {"", Name}; -split_filename(Name0) -> - split_filename(lists:reverse(filename:split(Name0)), [], [], 0). - -split_filename([Comp|Rest], Prefix, Suffix, Len) - when Len+length(Comp) < ?th_name_len -> - split_filename(Rest, Prefix, [Comp|Suffix], Len+length(Comp)+1); -split_filename([Comp|Rest], Prefix, Suffix, Len) -> - split_filename(Rest, [Comp|Prefix], Suffix, Len+length(Comp)+1); -split_filename([], Prefix, Suffix, _) -> - {filename:join(Prefix),filename:join(Suffix)}. - - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%%% -%%% Retrieving files from a tape archive. -%%% -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -%% Options used when reading a tar archive. - --record(read_opts, - {cwd :: string(), % Current working directory. - keep_old_files = false :: boolean(), % Owerwrite or not. - files = all, % Set of files to extract - % (or all). - output = file :: 'file' | 'memory', - open_mode = [], % Open mode options. - verbose = false :: boolean()}). % Verbose on/off. +format_string(String, Size) when length(String) > Size -> + throw({error, {write_string, field_too_long}}); +format_string(String, Size) -> + Ascii = to_ascii(String), + if byte_size(Ascii) < Size -> + [Ascii, 0]; + true -> + Ascii + end. -extract_opts(List) -> - extract_opts(List, default_options()). +format_octal(Octal) -> + iolist_to_binary(io_lib:fwrite("~.8B", [Octal])). + +add_header(#reader{}=Reader, #tar_header{}=Header, Opts) -> + {ok, Iodata} = build_header(Header, Opts), + do_write(Reader, Iodata). + +write_to_block(Block, IoData, Start) when is_list(IoData) -> + write_to_block(Block, iolist_to_binary(IoData), Start); +write_to_block(Block, Bin, Start) when is_binary(Bin) -> + Size = byte_size(Bin), + <<Head:Start/unit:8, _:Size/unit:8, Rest/binary>> = Block, + <<Head:Start/unit:8, Bin/binary, Rest/binary>>. + +build_header(#tar_header{}=Header, Opts) -> + #tar_header{ + name=Name, + mode=Mode, + uid=Uid, + gid=Gid, + size=Size, + typeflag=Type, + linkname=Linkname, + uname=Uname, + gname=Gname, + devmajor=Devmaj, + devminor=Devmin + } = Header, + Mtime = datetime_to_posix(Header#tar_header.mtime), + + Block0 = ?ZERO_BLOCK, + {Block1, Pax0} = write_string(Block0, ?V7_NAME, ?V7_NAME_LEN, Name, ?PAX_PATH, #{}), + Block2 = write_octal(Block1, ?V7_MODE, ?V7_MODE_LEN, Mode), + {Block3, Pax1} = write_numeric(Block2, ?V7_UID, ?V7_UID_LEN, Uid, ?PAX_UID, Pax0), + {Block4, Pax2} = write_numeric(Block3, ?V7_GID, ?V7_GID_LEN, Gid, ?PAX_GID, Pax1), + {Block5, Pax3} = write_numeric(Block4, ?V7_SIZE, ?V7_SIZE_LEN, Size, ?PAX_SIZE, Pax2), + {Block6, Pax4} = write_numeric(Block5, ?V7_MTIME, ?V7_MTIME_LEN, Mtime, ?PAX_NONE, Pax3), + {Block7, Pax5} = write_string(Block6, ?V7_TYPE, ?V7_TYPE_LEN, <<Type>>, ?PAX_NONE, Pax4), + {Block8, Pax6} = write_string(Block7, ?V7_LINKNAME, ?V7_LINKNAME_LEN, + Linkname, ?PAX_LINKPATH, Pax5), + {Block9, Pax7} = write_string(Block8, ?USTAR_UNAME, ?USTAR_UNAME_LEN, + Uname, ?PAX_UNAME, Pax6), + {Block10, Pax8} = write_string(Block9, ?USTAR_GNAME, ?USTAR_GNAME_LEN, + Gname, ?PAX_GNAME, Pax7), + {Block11, Pax9} = write_numeric(Block10, ?USTAR_DEVMAJ, ?USTAR_DEVMAJ_LEN, + Devmaj, ?PAX_NONE, Pax8), + {Block12, Pax10} = write_numeric(Block11, ?USTAR_DEVMIN, ?USTAR_DEVMIN_LEN, + Devmin, ?PAX_NONE, Pax9), + {Block13, Pax11} = set_path(Block12, Pax10), + PaxEntry = case maps:size(Pax11) of + 0 -> []; + _ -> build_pax_entry(Header, Pax11, Opts) + end, + Block14 = set_format(Block13, ?FORMAT_USTAR), + Block15 = set_checksum(Block14), + {ok, [PaxEntry, Block15]}. + +set_path(Block0, Pax) -> + %% only use ustar header when name is too long + case maps:get(?PAX_PATH, Pax, nil) of + nil -> + {Block0, Pax}; + PaxPath -> + case split_ustar_path(PaxPath) of + {ok, UstarName, UstarPrefix} -> + {Block1, _} = write_string(Block0, ?V7_NAME, ?V7_NAME_LEN, + UstarName, ?PAX_NONE, #{}), + {Block2, _} = write_string(Block1, ?USTAR_PREFIX, ?USTAR_PREFIX_LEN, + UstarPrefix, ?PAX_NONE, #{}), + {Block2, maps:remove(?PAX_PATH, Pax)}; + false -> + {Block0, Pax} + end + end. -table_opts(List) -> - read_opts(List, default_options()). +set_format(Block0, Format) + when Format =:= ?FORMAT_USTAR; Format =:= ?FORMAT_PAX -> + Block1 = write_to_block(Block0, ?MAGIC_USTAR, ?USTAR_MAGIC), + write_to_block(Block1, ?VERSION_USTAR, ?USTAR_VERSION); +set_format(_Block, Format) -> + throw({error, {invalid_format, Format}}). + +set_checksum(Block) -> + Checksum = compute_checksum(Block), + write_octal(Block, ?V7_CHKSUM, ?V7_CHKSUM_LEN, Checksum). + +build_pax_entry(Header, PaxAttrs, Opts) -> + Path = Header#tar_header.name, + Filename = filename:basename(Path), + Dir = filename:dirname(Path), + Path2 = filename:join([Dir, "PaxHeaders.0", Filename]), + AsciiPath = to_ascii(Path2), + Path3 = if byte_size(AsciiPath) > ?V7_NAME_LEN -> + binary_part(AsciiPath, 0, ?V7_NAME_LEN - 1); + true -> + AsciiPath + end, + Keys = maps:keys(PaxAttrs), + SortedKeys = lists:sort(Keys), + PaxFile = build_pax_file(SortedKeys, PaxAttrs), + Size = byte_size(PaxFile), + Padding = (?BLOCK_SIZE - + (byte_size(PaxFile) rem ?BLOCK_SIZE)) rem ?BLOCK_SIZE, + Pad = <<0:Padding/unit:8>>, + PaxHeader = #tar_header{ + name=unicode:characters_to_list(Path3), + size=Size, + mtime=Header#tar_header.mtime, + atime=Header#tar_header.atime, + ctime=Header#tar_header.ctime, + typeflag=?TYPE_X_HEADER + }, + {ok, PaxHeaderData} = build_header(PaxHeader, Opts), + [PaxHeaderData, PaxFile, Pad]. + +build_pax_file(Keys, PaxAttrs) -> + build_pax_file(Keys, PaxAttrs, []). +build_pax_file([], _, Acc) -> + unicode:characters_to_binary(Acc); +build_pax_file([K|Rest], Attrs, Acc) -> + V = maps:get(K, Attrs), + Size = sizeof(K) + sizeof(V) + 3, + Size2 = sizeof(Size) + Size, + Key = to_string(K), + Value = to_string(V), + Record = unicode:characters_to_binary(io_lib:format("~B ~ts=~ts\n", [Size2, Key, Value])), + if byte_size(Record) =/= Size2 -> + Size3 = byte_size(Record), + Record2 = io_lib:format("~B ~ts=~ts\n", [Size3, Key, Value]), + build_pax_file(Rest, Attrs, [Acc, Record2]); + true -> + build_pax_file(Rest, Attrs, [Acc, Record]) + end. -default_options() -> - {ok, Cwd} = file:get_cwd(), - #read_opts{cwd=Cwd}. +sizeof(Bin) when is_binary(Bin) -> + byte_size(Bin); +sizeof(List) when is_list(List) -> + length(List); +sizeof(N) when is_integer(N) -> + byte_size(integer_to_binary(N)); +sizeof(N) when is_float(N) -> + byte_size(float_to_binary(N)). + +to_string(Bin) when is_binary(Bin) -> + unicode:characters_to_list(Bin); +to_string(List) when is_list(List) -> + List; +to_string(N) when is_integer(N) -> + integer_to_list(N); +to_string(N) when is_float(N) -> + float_to_list(N). + +split_ustar_path(Path) -> + Len = length(Path), + NotAscii = not is_ascii(Path), + if Len =< ?V7_NAME_LEN; NotAscii -> + false; + true -> + PathBin = binary:list_to_bin(Path), + case binary:split(PathBin, [<<$/>>], [global, trim_all]) of + [Part] when byte_size(Part) >= ?V7_NAME_LEN -> + false; + Parts -> + case lists:last(Parts) of + Name when byte_size(Name) >= ?V7_NAME_LEN -> + false; + Name -> + Parts2 = lists:sublist(Parts, length(Parts) - 1), + join_split_ustar_path(Parts2, {ok, Name, nil}) + end + end + end. -%% Parse options for extract. +join_split_ustar_path([], Acc) -> + Acc; +join_split_ustar_path([Part|_], {ok, _, nil}) + when byte_size(Part) > ?USTAR_PREFIX_LEN -> + false; +join_split_ustar_path([Part|_], {ok, _Name, Acc}) + when (byte_size(Part)+byte_size(Acc)) > ?USTAR_PREFIX_LEN -> + false; +join_split_ustar_path([Part|Rest], {ok, Name, nil}) -> + join_split_ustar_path(Rest, {ok, Name, Part}); +join_split_ustar_path([Part|Rest], {ok, Name, Acc}) -> + join_split_ustar_path(Rest, {ok, Name, <<Acc/binary,$/,Part/binary>>}). + +datetime_to_posix(DateTime) -> + Epoch = calendar:datetime_to_gregorian_seconds(?EPOCH), + Secs = calendar:datetime_to_gregorian_seconds(DateTime), + case Secs - Epoch of + N when N < 0 -> 0; + N -> N + end. -extract_opts([keep_old_files|Rest], Opts) -> - extract_opts(Rest, Opts#read_opts{keep_old_files=true}); -extract_opts([{cwd, Cwd}|Rest], Opts) -> - extract_opts(Rest, Opts#read_opts{cwd=Cwd}); -extract_opts([{files, Files}|Rest], Opts) -> - Set = ordsets:from_list(Files), - extract_opts(Rest, Opts#read_opts{files=Set}); -extract_opts([memory|Rest], Opts) -> - extract_opts(Rest, Opts#read_opts{output=memory}); -extract_opts([compressed|Rest], Opts=#read_opts{open_mode=OpenMode}) -> - extract_opts(Rest, Opts#read_opts{open_mode=[compressed|OpenMode]}); -extract_opts([cooked|Rest], Opts=#read_opts{open_mode=OpenMode}) -> - extract_opts(Rest, Opts#read_opts{open_mode=[cooked|OpenMode]}); -extract_opts([verbose|Rest], Opts) -> - extract_opts(Rest, Opts#read_opts{verbose=true}); -extract_opts([Other|Rest], Opts) -> - extract_opts(Rest, read_opts([Other], Opts)); -extract_opts([], Opts) -> - Opts. +write_octal(Block, Pos, Size, X) -> + Octal = zero_pad(format_octal(X), Size-1), + if byte_size(Octal) < Size -> + write_to_block(Block, Octal, Pos); + true -> + throw({error, {write_failed, octal_field_too_long}}) + end. -%% Common options for all read operations. +write_string(Block, Pos, Size, Str, PaxAttr, Pax0) -> + NotAscii = not is_ascii(Str), + if PaxAttr =/= ?PAX_NONE andalso (length(Str) > Size orelse NotAscii) -> + Pax1 = maps:put(PaxAttr, Str, Pax0), + {Block, Pax1}; + true -> + Formatted = format_string(Str, Size), + {write_to_block(Block, Formatted, Pos), Pax0} + end. +write_numeric(Block, Pos, Size, X, PaxAttr, Pax0) -> + %% attempt octal + Octal = zero_pad(format_octal(X), Size-1), + if byte_size(Octal) < Size -> + {write_to_block(Block, [Octal, 0], Pos), Pax0}; + PaxAttr =/= ?PAX_NONE -> + Pax1 = maps:put(PaxAttr, X, Pax0), + {Block, Pax1}; + true -> + throw({error, {write_failed, numeric_field_too_long}}) + end. -read_opts([compressed|Rest], Opts=#read_opts{open_mode=OpenMode}) -> - read_opts(Rest, Opts#read_opts{open_mode=[compressed|OpenMode]}); -read_opts([cooked|Rest], Opts=#read_opts{open_mode=OpenMode}) -> - read_opts(Rest, Opts#read_opts{open_mode=[cooked|OpenMode]}); -read_opts([verbose|Rest], Opts) -> - read_opts(Rest, Opts#read_opts{verbose=true}); -read_opts([_|Rest], Opts) -> - read_opts(Rest, Opts); -read_opts([], Opts) -> - Opts. +zero_pad(Str, Size) when byte_size(Str) >= Size -> + Str; +zero_pad(Str, Size) -> + Padding = Size - byte_size(Str), + Pad = binary:copy(<<$0>>, Padding), + <<Pad/binary, Str/binary>>. -foldl_read({AccessMode,TD={tar_descriptor,_UsrHandle,_AccessFun}}, Fun, Accu, Opts) -> - case AccessMode of - read -> - foldl_read0(TD, Fun, Accu, Opts); - _ -> - {error,{read_mode_expected,AccessMode}} - end; -foldl_read(TarName, Fun, Accu, Opts) -> - case open(TarName, [read|Opts#read_opts.open_mode]) of - {ok, {read, File}} -> - Result = foldl_read0(File, Fun, Accu, Opts), - ok = do_close(File), - Result; - Error -> - Error + +%%%================================================================ +%% Functions for creating or modifying tar archives + +read_block(Reader) -> + case do_read(Reader, ?BLOCK_SIZE) of + eof -> + throw({error, eof}); + %% Two zero blocks mark the end of the archive + {ok, ?ZERO_BLOCK, Reader1} -> + case do_read(Reader1, ?BLOCK_SIZE) of + eof -> + % This is technically a malformed end-of-archive marker, + % as two ZERO_BLOCKs are expected as the marker, + % but if we've already made it this far, we should just ignore it + eof; + {ok, ?ZERO_BLOCK, _Reader2} -> + eof; + {ok, _Block, _Reader2} -> + throw({error, invalid_end_of_archive}); + {error,_} = Err -> + throw(Err) + end; + {ok, Block, Reader1} when is_binary(Block) -> + {ok, Block, Reader1}; + {error, _} = Err -> + throw(Err) end. -foldl_read0(File, Fun, Accu, Opts) -> - case catch foldl_read1(Fun, Accu, File, Opts) of - {'EXIT', Reason} -> - exit(Reason); - {error, {Reason, Format, Args}} -> - read_verbose(Opts, Format, Args), - {error, Reason}; - {error, Reason} -> - {error, Reason}; - Ok -> - Ok +get_header(#reader{}=Reader) -> + case read_block(Reader) of + eof -> + eof; + {ok, Block, Reader1} -> + convert_header(Block, Reader1) end. -foldl_read1(Fun, Accu0, File, Opts) -> - case get_header(File) of - eof -> - Fun(eof, File, Opts, Accu0); - Header -> - {ok, NewAccu} = Fun(Header, File, Opts, Accu0), - foldl_read1(Fun, NewAccu, File, Opts) +%% Converts the tar header to a record. +to_v7(Bin) when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + #header_v7{ + name=binary_part(Bin, ?V7_NAME, ?V7_NAME_LEN), + mode=binary_part(Bin, ?V7_MODE, ?V7_MODE_LEN), + uid=binary_part(Bin, ?V7_UID, ?V7_UID_LEN), + gid=binary_part(Bin, ?V7_GID, ?V7_GID_LEN), + size=binary_part(Bin, ?V7_SIZE, ?V7_SIZE_LEN), + mtime=binary_part(Bin, ?V7_MTIME, ?V7_MTIME_LEN), + checksum=binary_part(Bin, ?V7_CHKSUM, ?V7_CHKSUM_LEN), + typeflag=binary:at(Bin, ?V7_TYPE), + linkname=binary_part(Bin, ?V7_LINKNAME, ?V7_LINKNAME_LEN) + }; +to_v7(_) -> + {error, header_block_too_small}. + +to_gnu(#header_v7{}=V7, Bin) + when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + #header_gnu{ + header_v7=V7, + magic=binary_part(Bin, ?GNU_MAGIC, ?GNU_MAGIC_LEN), + version=binary_part(Bin, ?GNU_VERSION, ?GNU_VERSION_LEN), + uname=binary_part(Bin, 265, 32), + gname=binary_part(Bin, 297, 32), + devmajor=binary_part(Bin, 329, 8), + devminor=binary_part(Bin, 337, 8), + atime=binary_part(Bin, 345, 12), + ctime=binary_part(Bin, 357, 12), + sparse=to_sparse_array(binary_part(Bin, 386, 24*4+1)), + real_size=binary_part(Bin, 483, 12) + }. + +to_star(#header_v7{}=V7, Bin) + when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + #header_star{ + header_v7=V7, + magic=binary_part(Bin, ?USTAR_MAGIC, ?USTAR_MAGIC_LEN), + version=binary_part(Bin, ?USTAR_VERSION, ?USTAR_VERSION_LEN), + uname=binary_part(Bin, ?USTAR_UNAME, ?USTAR_UNAME_LEN), + gname=binary_part(Bin, ?USTAR_GNAME, ?USTAR_GNAME_LEN), + devmajor=binary_part(Bin, ?USTAR_DEVMAJ, ?USTAR_DEVMAJ_LEN), + devminor=binary_part(Bin, ?USTAR_DEVMIN, ?USTAR_DEVMIN_LEN), + prefix=binary_part(Bin, 345, 131), + atime=binary_part(Bin, 476, 12), + ctime=binary_part(Bin, 488, 12), + trailer=binary_part(Bin, ?STAR_TRAILER, ?STAR_TRAILER_LEN) + }. + +to_ustar(#header_v7{}=V7, Bin) + when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + #header_ustar{ + header_v7=V7, + magic=binary_part(Bin, ?USTAR_MAGIC, ?USTAR_MAGIC_LEN), + version=binary_part(Bin, ?USTAR_VERSION, ?USTAR_VERSION_LEN), + uname=binary_part(Bin, ?USTAR_UNAME, ?USTAR_UNAME_LEN), + gname=binary_part(Bin, ?USTAR_GNAME, ?USTAR_GNAME_LEN), + devmajor=binary_part(Bin, ?USTAR_DEVMAJ, ?USTAR_DEVMAJ_LEN), + devminor=binary_part(Bin, ?USTAR_DEVMIN, ?USTAR_DEVMIN_LEN), + prefix=binary_part(Bin, 345, 155) + }. + +to_sparse_array(Bin) when is_binary(Bin) -> + MaxEntries = byte_size(Bin) div 24, + IsExtended = 1 =:= binary:at(Bin, 24*MaxEntries), + Entries = parse_sparse_entries(Bin, MaxEntries-1, []), + #sparse_array{ + entries=Entries, + max_entries=MaxEntries, + is_extended=IsExtended + }. + +parse_sparse_entries(<<>>, _, Acc) -> + Acc; +parse_sparse_entries(_, -1, Acc) -> + Acc; +parse_sparse_entries(Bin, N, Acc) -> + case to_sparse_entry(binary_part(Bin, N*24, 24)) of + nil -> + parse_sparse_entries(Bin, N-1, Acc); + Entry = #sparse_entry{} -> + parse_sparse_entries(Bin, N-1, [Entry|Acc]) end. -table1(eof, _, _, Result) -> - {ok, lists:reverse(Result)}; -table1(Header = #tar_header{}, File, #read_opts{verbose=true}, Result) -> - #tar_header{name=Name, size=Size, mtime=Mtime, typeflag=Type, - mode=Mode, uid=Uid, gid=Gid} = Header, - skip(File, Size), - {ok, [{Name, Type, Size, posix_to_erlang_time(Mtime), Mode, Uid, Gid}|Result]}; -table1(#tar_header{name=Name, size=Size}, File, _, Result) -> - skip(File, Size), - {ok, [Name|Result]}. - -extract1(eof, _, _, Acc) -> - if - is_list(Acc) -> - {ok, lists:reverse(Acc)}; - true -> - Acc - end; -extract1(Header, File, Opts, Acc) -> - Name = Header#tar_header.name, - case check_extract(Name, Opts) of - true -> - {ok, Bin} = get_element(File, Header), - case write_extracted_element(Header, Bin, Opts) of - ok -> - {ok, Acc}; - {ok, NameBin} when is_list(Acc) -> - {ok, [NameBin | Acc]}; - {ok, NameBin} when Acc =:= ok -> - {ok, [NameBin]} - end; - false -> - ok = skip(File, Header#tar_header.size), - {ok, Acc} +-define(EMPTY_ENTRY, <<0,0,0,0,0,0,0,0,0,0,0,0>>). +to_sparse_entry(Bin) when is_binary(Bin), byte_size(Bin) =:= 24 -> + OffsetBin = binary_part(Bin, 0, 12), + NumBytesBin = binary_part(Bin, 12, 12), + case {OffsetBin, NumBytesBin} of + {?EMPTY_ENTRY, ?EMPTY_ENTRY} -> + nil; + _ -> + #sparse_entry{ + offset=parse_numeric(OffsetBin), + num_bytes=parse_numeric(NumBytesBin)} end. -%% Checks if the file Name should be extracted. +-spec get_format(binary()) -> {ok, pos_integer(), header_v7()} + | ?FORMAT_UNKNOWN + | {error, term()}. +get_format(Bin) when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + do_get_format(to_v7(Bin), Bin). + +do_get_format({error, _} = Err, _Bin) -> + Err; +do_get_format(#header_v7{}=V7, Bin) + when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + Checksum = parse_octal(V7#header_v7.checksum), + Chk1 = compute_checksum(Bin), + Chk2 = compute_signed_checksum(Bin), + if Checksum =/= Chk1 andalso Checksum =/= Chk2 -> + ?FORMAT_UNKNOWN; + true -> + %% guess magic + Ustar = to_ustar(V7, Bin), + Star = to_star(V7, Bin), + Magic = Ustar#header_ustar.magic, + Version = Ustar#header_ustar.version, + Trailer = Star#header_star.trailer, + Format = if + Magic =:= ?MAGIC_USTAR, Trailer =:= ?TRAILER_STAR -> + ?FORMAT_STAR; + Magic =:= ?MAGIC_USTAR -> + ?FORMAT_USTAR; + Magic =:= ?MAGIC_GNU, Version =:= ?VERSION_GNU -> + ?FORMAT_GNU; + true -> + ?FORMAT_V7 + end, + {ok, Format, V7} + end. -check_extract(_, #read_opts{files=all}) -> +unpack_format(Format, #header_v7{}=V7, Bin, Reader) + when is_binary(Bin), byte_size(Bin) =:= ?BLOCK_SIZE -> + Mtime = posix_to_erlang_time(parse_numeric(V7#header_v7.mtime)), + Header0 = #tar_header{ + name=parse_string(V7#header_v7.name), + mode=parse_numeric(V7#header_v7.mode), + uid=parse_numeric(V7#header_v7.uid), + gid=parse_numeric(V7#header_v7.gid), + size=parse_numeric(V7#header_v7.size), + mtime=Mtime, + atime=Mtime, + ctime=Mtime, + typeflag=V7#header_v7.typeflag, + linkname=parse_string(V7#header_v7.linkname) + }, + Typeflag = Header0#tar_header.typeflag, + Header1 = if Format > ?FORMAT_V7 -> + unpack_modern(Format, V7, Bin, Header0); + true -> + Name = Header0#tar_header.name, + Header0#tar_header{name=safe_join_path("", Name)} + end, + HeaderOnly = is_header_only_type(Typeflag), + Header2 = if HeaderOnly -> + Header1#tar_header{size=0}; + true -> + Header1 + end, + if Typeflag =:= ?TYPE_GNU_SPARSE -> + Gnu = to_gnu(V7, Bin), + RealSize = parse_numeric(Gnu#header_gnu.real_size), + {Sparsemap, Reader2} = parse_sparse_map(Gnu, Reader), + Header3 = Header2#tar_header{size=RealSize}, + {Header3, new_sparse_file_reader(Reader2, Sparsemap, RealSize)}; + true -> + FileReader = #reg_file_reader{ + handle=Reader, + num_bytes=Header2#tar_header.size, + size=Header2#tar_header.size, + pos = 0 + }, + {Header2, FileReader} + end. + +unpack_modern(Format, #header_v7{}=V7, Bin, #tar_header{}=Header0) + when is_binary(Bin) -> + Typeflag = Header0#tar_header.typeflag, + Ustar = to_ustar(V7, Bin), + H0 = Header0#tar_header{ + uname=parse_string(Ustar#header_ustar.uname), + gname=parse_string(Ustar#header_ustar.gname)}, + H1 = if Typeflag =:= ?TYPE_CHAR + orelse Typeflag =:= ?TYPE_BLOCK -> + Ma = parse_numeric(Ustar#header_ustar.devmajor), + Mi = parse_numeric(Ustar#header_ustar.devminor), + H0#tar_header{ + devmajor=Ma, + devminor=Mi + }; + true -> + H0 + end, + {Prefix, H2} = case Format of + ?FORMAT_USTAR -> + {parse_string(Ustar#header_ustar.prefix), H1}; + ?FORMAT_STAR -> + Star = to_star(V7, Bin), + Prefix0 = parse_string(Star#header_star.prefix), + Atime0 = Star#header_star.atime, + Atime = posix_to_erlang_time(parse_numeric(Atime0)), + Ctime0 = Star#header_star.ctime, + Ctime = posix_to_erlang_time(parse_numeric(Ctime0)), + {Prefix0, H1#tar_header{ + atime=Atime, + ctime=Ctime + }}; + _ -> + {"", H1} + end, + Name = H2#tar_header.name, + H2#tar_header{name=safe_join_path(Prefix, Name)}. + + +safe_join_path([], Name) -> + strip_slashes(Name, both); +safe_join_path(Prefix, []) -> + strip_slashes(Prefix, right); +safe_join_path(Prefix, Name) -> + filename:join(strip_slashes(Prefix, right), strip_slashes(Name, both)). + +strip_slashes(Str, Direction) -> + string:strip(Str, Direction, $/). + +new_sparse_file_reader(Reader, Sparsemap, RealSize) -> + true = validate_sparse_entries(Sparsemap, RealSize), + #sparse_file_reader{ + handle = Reader, + num_bytes = RealSize, + pos = 0, + size = RealSize, + sparse_map = Sparsemap}. + +validate_sparse_entries(Entries, RealSize) -> + validate_sparse_entries(Entries, RealSize, 0, 0). +validate_sparse_entries([], _RealSize, _I, _LastOffset) -> true; -check_extract(Name, #read_opts{files=Files}) -> - ordsets:is_element(Name, Files). +validate_sparse_entries([#sparse_entry{}=Entry|Rest], RealSize, I, LastOffset) -> + Offset = Entry#sparse_entry.offset, + NumBytes = Entry#sparse_entry.num_bytes, + if + Offset > ?MAX_INT64-NumBytes -> + throw({error, {invalid_sparse_map_entry, offset_too_large}}); + Offset+NumBytes > RealSize -> + throw({error, {invalid_sparse_map_entry, offset_too_large}}); + I > 0 andalso LastOffset > Offset -> + throw({error, {invalid_sparse_map_entry, overlapping_offsets}}); + true -> + ok + end, + validate_sparse_entries(Rest, RealSize, I+1, Offset+NumBytes). + + +-spec parse_sparse_map(header_gnu(), reader_type()) -> + {[sparse_entry()], reader_type()}. +parse_sparse_map(#header_gnu{sparse=Sparse}, Reader) + when Sparse#sparse_array.is_extended -> + parse_sparse_map(Sparse, Reader, []); +parse_sparse_map(#header_gnu{sparse=Sparse}, Reader) -> + {Sparse#sparse_array.entries, Reader}. +parse_sparse_map(#sparse_array{is_extended=true,entries=Entries}, Reader, Acc) -> + case read_block(Reader) of + eof -> + throw({error, eof}); + {ok, Block, Reader2} -> + Sparse2 = to_sparse_array(Block), + parse_sparse_map(Sparse2, Reader2, Entries++Acc) + end; +parse_sparse_map(#sparse_array{entries=Entries}, Reader, Acc) -> + Sorted = lists:sort(fun (#sparse_entry{offset=A},#sparse_entry{offset=B}) -> + A =< B + end, Entries++Acc), + {Sorted, Reader}. + +%% Defined by taking the sum of the unsigned byte values of the +%% entire header record, treating the checksum bytes to as ASCII spaces +compute_checksum(<<H1:?V7_CHKSUM/binary, + H2:?V7_CHKSUM_LEN/binary, + Rest:(?BLOCK_SIZE - ?V7_CHKSUM - ?V7_CHKSUM_LEN)/binary, + _/binary>>) -> + C0 = checksum(H1) + (byte_size(H2) * $\s), + C1 = checksum(Rest), + C0 + C1. + +compute_signed_checksum(<<H1:?V7_CHKSUM/binary, + H2:?V7_CHKSUM_LEN/binary, + Rest:(?BLOCK_SIZE - ?V7_CHKSUM - ?V7_CHKSUM_LEN)/binary, + _/binary>>) -> + C0 = signed_checksum(H1) + (byte_size(H2) * $\s), + C1 = signed_checksum(Rest), + C0 + C1. -get_header(File) -> - case do_read(File, ?record_size) of - eof -> - throw({error,eof}); - {ok, Bin} when is_binary(Bin) -> - convert_header(Bin); - {ok, List} -> - convert_header(list_to_binary(List)); - {error, Reason} -> - throw({error, Reason}) - end. +%% Returns the checksum of a binary. +checksum(Bin) -> checksum(Bin, 0). +checksum(<<A/unsigned,Rest/binary>>, Sum) -> + checksum(Rest, Sum+A); +checksum(<<>>, Sum) -> Sum. -%% Converts the tar header to a record. +signed_checksum(Bin) -> signed_checksum(Bin, 0). +signed_checksum(<<A/signed,Rest/binary>>, Sum) -> + signed_checksum(Rest, Sum+A); +signed_checksum(<<>>, Sum) -> Sum. + +-spec parse_numeric(binary()) -> non_neg_integer(). +parse_numeric(<<>>) -> + 0; +parse_numeric(<<First, _/binary>> = Bin) -> + %% check for base-256 format first + %% if the bit is set, then all following bits constitute a two's + %% complement encoded number in big-endian byte order + if + First band 16#80 =/= 0 -> + %% Handling negative numbers relies on the following identity: + %% -a-1 == ^a + %% If the number is negative, we use an inversion mask to invert + %% the data bytes and treat the value as an unsigned number + Inv = if First band 16#40 =/= 0 -> 16#00; true -> 16#FF end, + Bytes = binary:bin_to_list(Bin), + Reducer = fun (C, {I, X}) -> + C1 = C bxor Inv, + C2 = if I =:= 0 -> C1 band 16#7F; true -> C1 end, + if (X bsr 56) > 0 -> + throw({error,integer_overflow}); + true -> + {I+1, (X bsl 8) bor C2} + end + end, + {_, N} = lists:foldl(Reducer, {0,0}, Bytes), + if (N bsr 63) > 0 -> + throw({error, integer_overflow}); + true -> + if Inv =:= 16#FF -> + -1 bxor N; + true -> + N + end + end; + true -> + %% normal case is an octal number + parse_octal(Bin) + end. -convert_header(Bin) when byte_size(Bin) =:= ?record_size -> - case verify_checksum(Bin) of - ok -> - Hd = #tar_header{name=get_name(Bin), - mode=from_octal(Bin, ?th_mode, ?th_mode_len), - uid=from_octal(Bin, ?th_uid, ?th_uid_len), - gid=from_octal(Bin, ?th_gid, ?th_gid_len), - size=from_octal(Bin, ?th_size, ?th_size_len), - mtime=from_octal(Bin, ?th_mtime, ?th_mtime_len), - linkname=from_string(Bin, - ?th_linkname, ?th_linkname_len), - typeflag=typeflag(Bin)}, - convert_header1(Hd); - eof -> - eof +parse_octal(Bin) when is_binary(Bin) -> + %% skip leading/trailing zero bytes and spaces + do_parse_octal(Bin, <<>>). +do_parse_octal(<<>>, <<>>) -> + 0; +do_parse_octal(<<>>, Acc) -> + case io_lib:fread("~8u", binary:bin_to_list(Acc)) of + {error, _} -> throw({error, invalid_tar_checksum}); + {ok, [Octal], []} -> Octal; + {ok, _, _} -> throw({error, invalid_tar_checksum}) end; -convert_header(Bin) when byte_size(Bin) =:= 0 -> +do_parse_octal(<<$\s,Rest/binary>>, Acc) -> + do_parse_octal(Rest, Acc); +do_parse_octal(<<0, Rest/binary>>, Acc) -> + do_parse_octal(Rest, Acc); +do_parse_octal(<<C, Rest/binary>>, Acc) -> + do_parse_octal(Rest, <<Acc/binary, C>>). + +parse_string(Bin) when is_binary(Bin) -> + do_parse_string(Bin, <<>>). +do_parse_string(<<>>, Acc) -> + case unicode:characters_to_list(Acc) of + Str when is_list(Str) -> + Str; + {incomplete, _Str, _Rest} -> + binary:bin_to_list(Acc); + {error, _Str, _Rest} -> + throw({error, {bad_header, invalid_string}}) + end; +do_parse_string(<<0, _/binary>>, Acc) -> + do_parse_string(<<>>, Acc); +do_parse_string(<<C, Rest/binary>>, Acc) -> + do_parse_string(Rest, <<Acc/binary, C>>). + +convert_header(Bin, #reader{pos=Pos}=Reader) + when byte_size(Bin) =:= ?BLOCK_SIZE, (Pos rem ?BLOCK_SIZE) =:= 0 -> + case get_format(Bin) of + ?FORMAT_UNKNOWN -> + throw({error, bad_header}); + {ok, Format, V7} -> + unpack_format(Format, V7, Bin, Reader); + {error, Reason} -> + throw({error, {bad_header, Reason}}) + end; +convert_header(Bin, #reader{pos=Pos}) when byte_size(Bin) =:= ?BLOCK_SIZE -> + throw({error, misaligned_read, Pos}); +convert_header(Bin, _Reader) when byte_size(Bin) =:= 0 -> eof; -convert_header(_Bin) -> +convert_header(_Bin, _Reader) -> throw({error, eof}). -%% Basic sanity. Better set the element size to zero here if the type -%% always is of zero length. - -convert_header1(H) when H#tar_header.typeflag =:= symlink, H#tar_header.size =/= 0 -> - convert_header1(H#tar_header{size=0}); -convert_header1(H) when H#tar_header.typeflag =:= directory, H#tar_header.size =/= 0 -> - convert_header1(H#tar_header{size=0}); -convert_header1(Header) -> - Header. - -typeflag(Bin) -> - [T] = binary_to_list(Bin, ?th_typeflag+1, ?th_typeflag+1), - case T of - 0 -> regular; - $0 -> regular; - $1 -> link; - $2 -> symlink; - $3 -> char; - $4 -> block; - $5 -> directory; - $6 -> fifo; - $7 -> regular; - _ -> unknown +%% Creates a partially-populated header record based +%% on the provided file_info record. If the file is +%% a symlink, then `link` is used as the link target. +%% If the file is a directory, a slash is appended to the name. +fileinfo_to_header(Name, #file_info{}=Fi, Link) when is_list(Name) -> + BaseHeader = #tar_header{name=Name, + mtime=Fi#file_info.mtime, + atime=Fi#file_info.atime, + ctime=Fi#file_info.ctime, + mode=Fi#file_info.mode, + uid=Fi#file_info.uid, + gid=Fi#file_info.gid, + typeflag=?TYPE_REGULAR}, + do_fileinfo_to_header(BaseHeader, Fi, Link). + +do_fileinfo_to_header(Header, #file_info{size=Size,type=regular}, _Link) -> + Header#tar_header{size=Size,typeflag=?TYPE_REGULAR}; +do_fileinfo_to_header(#tar_header{name=Name}=Header, + #file_info{type=directory}, _Link) -> + Header#tar_header{name=Name++"/",typeflag=?TYPE_DIR}; +do_fileinfo_to_header(Header, #file_info{type=symlink}, Link) -> + Header#tar_header{typeflag=?TYPE_SYMLINK,linkname=Link}; +do_fileinfo_to_header(Header, #file_info{type=device,mode=Mode}=Fi, _Link) + when (Mode band ?S_IFMT) =:= ?S_IFCHR -> + Header#tar_header{typeflag=?TYPE_CHAR, + devmajor=Fi#file_info.major_device, + devminor=Fi#file_info.minor_device}; +do_fileinfo_to_header(Header, #file_info{type=device,mode=Mode}=Fi, _Link) + when (Mode band ?S_IFMT) =:= ?S_IFBLK -> + Header#tar_header{typeflag=?TYPE_BLOCK, + devmajor=Fi#file_info.major_device, + devminor=Fi#file_info.minor_device}; +do_fileinfo_to_header(Header, #file_info{type=other,mode=Mode}, _Link) + when (Mode band ?S_IFMT) =:= ?S_FIFO -> + Header#tar_header{typeflag=?TYPE_FIFO}; +do_fileinfo_to_header(Header, Fi, _Link) -> + {error, {invalid_file_type, Header#tar_header.name, Fi}}. + +is_ascii(Str) when is_list(Str) -> + not lists:any(fun (Char) -> Char >= 16#80 end, Str); +is_ascii(Bin) when is_binary(Bin) -> + is_ascii1(Bin). + +is_ascii1(<<>>) -> + true; +is_ascii1(<<C,_Rest/binary>>) when C >= 16#80 -> + false; +is_ascii1(<<_, Rest/binary>>) -> + is_ascii1(Rest). + +to_ascii(Str) when is_list(Str) -> + case is_ascii(Str) of + true -> + unicode:characters_to_binary(Str); + false -> + Chars = lists:filter(fun (Char) -> Char < 16#80 end, Str), + unicode:characters_to_binary(Chars) + end; +to_ascii(Bin) when is_binary(Bin) -> + to_ascii(Bin, <<>>). +to_ascii(<<>>, Acc) -> + Acc; +to_ascii(<<C, Rest/binary>>, Acc) when C < 16#80 -> + to_ascii(Rest, <<Acc/binary,C>>); +to_ascii(<<_, Rest/binary>>, Acc) -> + to_ascii(Rest, Acc). + +is_header_only_type(?TYPE_SYMLINK) -> true; +is_header_only_type(?TYPE_LINK) -> true; +is_header_only_type(?TYPE_DIR) -> true; +is_header_only_type(_) -> false. + +posix_to_erlang_time(Sec) -> + OneMillion = 1000000, + Time = calendar:now_to_datetime({Sec div OneMillion, Sec rem OneMillion, 0}), + erlang:universaltime_to_localtime(Time). + +foldl_read(#reader{access=read}=Reader, Fun, Accu, #read_opts{}=Opts) + when is_function(Fun,4) -> + case foldl_read0(Reader, Fun, Accu, Opts) of + {ok, Result, _Reader2} -> + Result; + {error, _} = Err -> + Err + end; +foldl_read(#reader{access=Access}, _Fun, _Accu, _Opts) -> + {error, {read_mode_expected, Access}}; +foldl_read(TarName, Fun, Accu, #read_opts{}=Opts) + when is_function(Fun,4) -> + try open(TarName, [read|Opts#read_opts.open_mode]) of + {ok, #reader{access=read}=Reader} -> + foldl_read(Reader, Fun, Accu, Opts); + {error, _} = Err -> + Err + catch + throw:Err -> + Err end. -%% Get the name of the file from the prefix and name fields of the -%% tar header. - -get_name(Bin0) -> - List0 = get_name_raw(Bin0), - case file:native_name_encoding() of - utf8 -> - Bin = list_to_binary(List0), - case unicode:characters_to_list(Bin) of - {error,_,_} -> - List0; - List when is_list(List) -> - List - end; - latin1 -> - List0 +foldl_read0(Reader, Fun, Accu, Opts) -> + try foldl_read1(Fun, Accu, Reader, Opts, #{}) of + {ok,_,_} = Ok -> + Ok + catch + throw:{error, {Reason, Format, Args}} -> + read_verbose(Opts, Format, Args), + {error, Reason}; + throw:Err -> + Err end. -get_name_raw(Bin) -> - Name = from_string(Bin, ?th_name, ?th_name_len), - case binary_to_list(Bin, ?th_prefix+1, ?th_prefix+1) of - [0] -> - Name; - [_] -> - Prefix = binary_to_list(Bin, ?th_prefix+1, byte_size(Bin)), - lists:reverse(remove_nulls(Prefix), [$/|Name]) +foldl_read1(Fun, Accu0, Reader0, Opts, ExtraHeaders) -> + {ok, Reader1} = skip_unread(Reader0), + case get_header(Reader1) of + eof -> + Fun(eof, Reader1, Opts, Accu0); + {Header, Reader2} -> + case Header#tar_header.typeflag of + ?TYPE_X_HEADER -> + {ExtraHeaders2, Reader3} = parse_pax(Reader2), + ExtraHeaders3 = maps:merge(ExtraHeaders, ExtraHeaders2), + foldl_read1(Fun, Accu0, Reader3, Opts, ExtraHeaders3); + ?TYPE_GNU_LONGNAME -> + {RealName, Reader3} = get_real_name(Reader2), + ExtraHeaders2 = maps:put(?PAX_PATH, + parse_string(RealName), ExtraHeaders), + foldl_read1(Fun, Accu0, Reader3, Opts, ExtraHeaders2); + ?TYPE_GNU_LONGLINK -> + {RealName, Reader3} = get_real_name(Reader2), + ExtraHeaders2 = maps:put(?PAX_LINKPATH, + parse_string(RealName), ExtraHeaders), + foldl_read1(Fun, Accu0, Reader3, Opts, ExtraHeaders2); + _ -> + Header1 = merge_pax(Header, ExtraHeaders), + {ok, NewAccu, Reader3} = Fun(Header1, Reader2, Opts, Accu0), + foldl_read1(Fun, NewAccu, Reader3, Opts, #{}) + end end. -from_string(Bin, Pos, Len) -> - lists:reverse(remove_nulls(binary_to_list(Bin, Pos+1, Pos+Len))). - -%% Returns all characters up to (but not including) the first null -%% character, in REVERSE order. - -remove_nulls(List) -> - remove_nulls(List, []). - -remove_nulls([0|_], Result) -> - remove_nulls([], Result); -remove_nulls([C|Rest], Result) -> - remove_nulls(Rest, [C|Result]); -remove_nulls([], Result) -> - Result. - -from_octal(Bin, Pos, Len) -> - from_octal(binary_to_list(Bin, Pos+1, Pos+Len)). - -from_octal([$\s|Rest]) -> - from_octal(Rest); -from_octal([Digit|Rest]) when $0 =< Digit, Digit =< $7 -> - from_octal(Rest, Digit-$0); -from_octal(Bin) when is_binary(Bin) -> - from_octal(binary_to_list(Bin)); -from_octal(Other) -> - throw({error, {bad_header, "Bad octal number: ~p", [Other]}}). - -from_octal([Digit|Rest], Result) when $0 =< Digit, Digit =< $7 -> - from_octal(Rest, Result*8+Digit-$0); -from_octal([$\s|_], Result) -> - Result; -from_octal([0|_], Result) -> - Result; -from_octal(Other, _) -> - throw({error, {bad_header, "Bad contents in octal field: ~p", [Other]}}). - -%% Retrieves the next element from the archive. -%% Returns {ok, Bin} | eof | {error, Reason} - -get_element(File, #tar_header{size = 0}) -> - skip_to_next(File), - {ok,<<>>}; -get_element(File, #tar_header{size = Size}) -> - case do_read(File, Size) of - {ok,Bin}=Res when byte_size(Bin) =:= Size -> - skip_to_next(File), - Res; - {ok,List} when length(List) =:= Size -> - skip_to_next(File), - {ok,list_to_binary(List)}; - {ok,_} -> throw({error,eof}); - {error, Reason} -> throw({error, Reason}); - eof -> throw({error,eof}) +%% Applies all known PAX attributes to the current tar header +-spec merge_pax(tar_header(), #{binary() => binary()}) -> tar_header(). +merge_pax(Header, ExtraHeaders) when is_map(ExtraHeaders) -> + do_merge_pax(Header, maps:to_list(ExtraHeaders)). + +do_merge_pax(Header, []) -> + Header; +do_merge_pax(Header, [{?PAX_PATH, Path}|Rest]) -> + do_merge_pax(Header#tar_header{name=unicode:characters_to_list(Path)}, Rest); +do_merge_pax(Header, [{?PAX_LINKPATH, LinkPath}|Rest]) -> + do_merge_pax(Header#tar_header{linkname=unicode:characters_to_list(LinkPath)}, Rest); +do_merge_pax(Header, [{?PAX_GNAME, Gname}|Rest]) -> + do_merge_pax(Header#tar_header{gname=unicode:characters_to_list(Gname)}, Rest); +do_merge_pax(Header, [{?PAX_UNAME, Uname}|Rest]) -> + do_merge_pax(Header#tar_header{uname=unicode:characters_to_list(Uname)}, Rest); +do_merge_pax(Header, [{?PAX_UID, Uid}|Rest]) -> + Uid2 = binary_to_integer(Uid), + do_merge_pax(Header#tar_header{uid=Uid2}, Rest); +do_merge_pax(Header, [{?PAX_GID, Gid}|Rest]) -> + Gid2 = binary_to_integer(Gid), + do_merge_pax(Header#tar_header{gid=Gid2}, Rest); +do_merge_pax(Header, [{?PAX_ATIME, Atime}|Rest]) -> + Atime2 = parse_pax_time(Atime), + do_merge_pax(Header#tar_header{atime=Atime2}, Rest); +do_merge_pax(Header, [{?PAX_MTIME, Mtime}|Rest]) -> + Mtime2 = parse_pax_time(Mtime), + do_merge_pax(Header#tar_header{mtime=Mtime2}, Rest); +do_merge_pax(Header, [{?PAX_CTIME, Ctime}|Rest]) -> + Ctime2 = parse_pax_time(Ctime), + do_merge_pax(Header#tar_header{ctime=Ctime2}, Rest); +do_merge_pax(Header, [{?PAX_SIZE, Size}|Rest]) -> + Size2 = binary_to_integer(Size), + do_merge_pax(Header#tar_header{size=Size2}, Rest); +do_merge_pax(Header, [{<<?PAX_XATTR_STR, _Key/binary>>, _Value}|Rest]) -> + do_merge_pax(Header, Rest); +do_merge_pax(Header, [_Ignore|Rest]) -> + do_merge_pax(Header, Rest). + +%% Returns the time since UNIX epoch as a datetime +-spec parse_pax_time(binary()) -> calendar:datetime(). +parse_pax_time(Bin) when is_binary(Bin) -> + TotalNano = case binary:split(Bin, [<<$.>>]) of + [SecondsStr, NanoStr0] -> + Seconds = binary_to_integer(SecondsStr), + if byte_size(NanoStr0) < ?MAX_NANO_INT_SIZE -> + %% right pad + PaddingN = ?MAX_NANO_INT_SIZE-byte_size(NanoStr0), + Padding = binary:copy(<<$0>>, PaddingN), + NanoStr1 = <<NanoStr0/binary,Padding/binary>>, + Nano = binary_to_integer(NanoStr1), + (Seconds*?BILLION)+Nano; + byte_size(NanoStr0) > ?MAX_NANO_INT_SIZE -> + %% right truncate + NanoStr1 = binary_part(NanoStr0, 0, ?MAX_NANO_INT_SIZE), + Nano = binary_to_integer(NanoStr1), + (Seconds*?BILLION)+Nano; + true -> + (Seconds*?BILLION)+binary_to_integer(NanoStr0) + end; + [SecondsStr] -> + binary_to_integer(SecondsStr)*?BILLION + end, + %% truncate to microseconds + Micro = TotalNano div 1000, + Mega = Micro div 1000000000000, + Secs = Micro div 1000000 - (Mega*1000000), + Micro2 = Micro rem 1000000, + calendar:now_to_datetime({Mega, Secs, Micro2}). + +%% Given a regular file reader, reads the whole file and +%% parses all extended attributes it contains. +parse_pax(#reg_file_reader{handle=Handle,num_bytes=0}) -> + {#{}, Handle}; +parse_pax(#reg_file_reader{handle=Handle0,num_bytes=NumBytes}) -> + case do_read(Handle0, NumBytes) of + {ok, Bytes, Handle1} -> + do_parse_pax(Handle1, Bytes, #{}); + {error, _} = Err -> + throw(Err) end. -%% Verify the checksum in the header. First try an unsigned addition -%% of all bytes in the header (as it should be according to Posix). - -verify_checksum(Bin) -> - <<H1:?th_chksum/binary,CheckStr:?th_chksum_len/binary,H2/binary>> = Bin, - case checksum(H1) + checksum(H2) of - 0 -> eof; - Checksum0 -> - Csum = from_octal(CheckStr), - CsumInit = ?th_chksum_len * $\s, - case Checksum0 + CsumInit of - Csum -> ok; - Unsigned -> - verify_checksum(H1, H2, CsumInit, Csum, Unsigned) - end +do_parse_pax(Reader, <<>>, Headers) -> + {Headers, Reader}; +do_parse_pax(Reader, Bin, Headers) -> + {Key, Value, Residual} = parse_pax_record(Bin), + NewHeaders = maps:put(Key, Value, Headers), + do_parse_pax(Reader, Residual, NewHeaders). + +%% Parse an extended attribute +parse_pax_record(Bin) when is_binary(Bin) -> + case binary:split(Bin, [<<$\n>>]) of + [Record, Residual] -> + case binary:split(Record, [<<$\s>>], [trim_all]) of + [_Len, Record1] -> + case binary:split(Record1, [<<$=>>], [trim_all]) of + [AttrName, AttrValue] -> + {AttrName, AttrValue, Residual}; + _Other -> + throw({error, malformed_pax_record}) + end; + _Other -> + throw({error, malformed_pax_record}) + end; + _Other -> + throw({error, malformed_pax_record}) end. -%% The checksums didn't match. Now try a signed addition. +get_real_name(#reg_file_reader{handle=Handle,num_bytes=0}) -> + {"", Handle}; +get_real_name(#reg_file_reader{handle=Handle0,num_bytes=NumBytes}) -> + case do_read(Handle0, NumBytes) of + {ok, RealName, Handle1} -> + {RealName, Handle1}; + {error, _} = Err -> + throw(Err) + end; +get_real_name(#sparse_file_reader{num_bytes=NumBytes}=Reader0) -> + case do_read(Reader0, NumBytes) of + {ok, RealName, Reader1} -> + {RealName, Reader1}; + {error, _} = Err -> + throw(Err) + end. -verify_checksum(H1, H2, Csum, ShouldBe, Unsigned) -> - case signed_sum(binary_to_list(H1), signed_sum(binary_to_list(H2), Csum)) of - ShouldBe -> ok; - Signed -> - throw({error, - {bad_header, - "Incorrect directory checksum ~w (~w), should be ~w", - [Signed, Unsigned, ShouldBe]}}) +%% Skip the remaining bytes for the current file entry +skip_file(#reg_file_reader{handle=Handle0,pos=Pos,size=Size}=Reader) -> + Padding = skip_padding(Size), + AbsPos = Handle0#reader.pos + (Size-Pos) + Padding, + case do_position(Handle0, AbsPos) of + {ok, _, Handle1} -> + Reader#reg_file_reader{handle=Handle1,num_bytes=0,pos=Size}; + Err -> + throw(Err) + end; +skip_file(#sparse_file_reader{pos=Pos,size=Size}=Reader) -> + case do_read(Reader, Size-Pos) of + {ok, _, Reader2} -> + Reader2; + Err -> + throw(Err) end. -signed_sum([C|Rest], Sum) when C < 128 -> - signed_sum(Rest, Sum+C); -signed_sum([C|Rest], Sum) -> - signed_sum(Rest, Sum+C-256); -signed_sum([], Sum) -> Sum. - -write_extracted_element(Header, Bin, Opts) - when Opts#read_opts.output =:= memory -> - case Header#tar_header.typeflag of - regular -> - {ok, {Header#tar_header.name, Bin}}; - _ -> - ok +skip_padding(0) -> + 0; +skip_padding(Size) when (Size rem ?BLOCK_SIZE) =:= 0 -> + 0; +skip_padding(Size) when Size =< ?BLOCK_SIZE -> + ?BLOCK_SIZE - Size; +skip_padding(Size) -> + ?BLOCK_SIZE - (Size rem ?BLOCK_SIZE). + +skip_unread(#reader{pos=Pos}=Reader0) when (Pos rem ?BLOCK_SIZE) > 0 -> + Padding = skip_padding(Pos + ?BLOCK_SIZE), + AbsPos = Pos + Padding, + case do_position(Reader0, AbsPos) of + {ok, _, Reader1} -> + {ok, Reader1}; + Err -> + throw(Err) + end; +skip_unread(#reader{}=Reader) -> + {ok, Reader}; +skip_unread(#reg_file_reader{handle=Handle,num_bytes=0}) -> + skip_unread(Handle); +skip_unread(#reg_file_reader{}=Reader) -> + #reg_file_reader{handle=Handle} = skip_file(Reader), + {ok, Handle}; +skip_unread(#sparse_file_reader{handle=Handle,num_bytes=0}) -> + skip_unread(Handle); +skip_unread(#sparse_file_reader{}=Reader) -> + #sparse_file_reader{handle=Handle} = skip_file(Reader), + {ok, Handle}. + +write_extracted_element(#tar_header{name=Name,typeflag=Type}, + Bin, + #read_opts{output=memory}=Opts) -> + case typeflag(Type) of + regular -> + read_verbose(Opts, "x ~ts~n", [Name]), + {ok, {Name, Bin}}; + _ -> + ok end; -write_extracted_element(Header, Bin, Opts) -> - Name = filename:absname(Header#tar_header.name, Opts#read_opts.cwd), - Created = - case Header#tar_header.typeflag of - regular -> - write_extracted_file(Name, Bin, Opts); - directory -> - create_extracted_dir(Name, Opts); - symlink -> - create_symlink(Name, Header, Opts); - Other -> % Ignore. - read_verbose(Opts, "x ~ts - unsupported type ~p~n", - [Name, Other]), - not_written - end, +write_extracted_element(#tar_header{name=Name0}=Header, Bin, Opts) -> + Name1 = filename:absname(Name0, Opts#read_opts.cwd), + Created = + case typeflag(Header#tar_header.typeflag) of + regular -> + create_regular(Name1, Name0, Bin, Opts); + directory -> + read_verbose(Opts, "x ~ts~n", [Name0]), + create_extracted_dir(Name1, Opts); + symlink -> + read_verbose(Opts, "x ~ts~n", [Name0]), + create_symlink(Name1, Header#tar_header.linkname, Opts); + Device when Device =:= char orelse Device =:= block -> + %% char/block devices will be created as empty files + %% and then have their major/minor device set later + create_regular(Name1, Name0, <<>>, Opts); + fifo -> + %% fifo devices will be created as empty files + create_regular(Name1, Name0, <<>>, Opts); + Other -> % Ignore. + read_verbose(Opts, "x ~ts - unsupported type ~p~n", + [Name0, Other]), + not_written + end, case Created of - ok -> set_extracted_file_info(Name, Header); - not_written -> ok + ok -> set_extracted_file_info(Name1, Header); + not_written -> ok + end. + +create_regular(Name, NameInArchive, Bin, Opts) -> + case write_extracted_file(Name, Bin, Opts) of + not_written -> + read_verbose(Opts, "x ~ts - exists, not created~n", [NameInArchive]), + not_written; + Ok -> + read_verbose(Opts, "x ~ts~n", [NameInArchive]), + Ok end. create_extracted_dir(Name, _Opts) -> case file:make_dir(Name) of - ok -> ok; - {error,enotsup} -> not_written; - {error,eexist} -> not_written; - {error,enoent} -> make_dirs(Name, dir); - {error,Reason} -> throw({error, Reason}) + ok -> ok; + {error,enotsup} -> not_written; + {error,eexist} -> not_written; + {error,enoent} -> make_dirs(Name, dir); + {error,Reason} -> throw({error, Reason}) end. -create_symlink(Name, #tar_header{linkname=Linkname}=Header, Opts) -> +create_symlink(Name, Linkname, Opts) -> case file:make_symlink(Linkname, Name) of - ok -> ok; - {error,enoent} -> - ok = make_dirs(Name, file), - create_symlink(Name, Header, Opts); - {error,eexist} -> not_written; - {error,enotsup} -> - read_verbose(Opts, "x ~ts - symbolic links not supported~n", [Name]), - not_written; - {error,Reason} -> throw({error, Reason}) + ok -> ok; + {error,enoent} -> + ok = make_dirs(Name, file), + create_symlink(Name, Linkname, Opts); + {error,eexist} -> not_written; + {error,enotsup} -> + read_verbose(Opts, "x ~ts - symbolic links not supported~n", [Name]), + not_written; + {error,Reason} -> throw({error, Reason}) end. write_extracted_file(Name, Bin, Opts) -> Write = - case Opts#read_opts.keep_old_files of - true -> - case file:read_file_info(Name) of - {ok, _} -> false; - _ -> true - end; - false -> true - end, + case Opts#read_opts.keep_old_files of + true -> + case file:read_file_info(Name) of + {ok, _} -> false; + _ -> true + end; + false -> true + end, case Write of - true -> - read_verbose(Opts, "x ~ts~n", [Name]), - write_file(Name, Bin); - false -> - read_verbose(Opts, "x ~ts - exists, not created~n", [Name]), - not_written + true -> write_file(Name, Bin); + false -> not_written end. write_file(Name, Bin) -> case file:write_file(Name, Bin) of - ok -> ok; - {error,enoent} -> - ok = make_dirs(Name, file), - write_file(Name, Bin); - {error,Reason} -> - throw({error, Reason}) + ok -> ok; + {error,enoent} -> + ok = make_dirs(Name, file), + write_file(Name, Bin); + {error,Reason} -> + throw({error, Reason}) end. -set_extracted_file_info(_, #tar_header{typeflag = symlink}) -> ok; -set_extracted_file_info(Name, #tar_header{mode=Mode, mtime=Mtime}) -> - Info = #file_info{mode=Mode, mtime=posix_to_erlang_time(Mtime)}, +set_extracted_file_info(_, #tar_header{typeflag = ?TYPE_SYMLINK}) -> ok; +set_extracted_file_info(_, #tar_header{typeflag = ?TYPE_LINK}) -> ok; +set_extracted_file_info(Name, #tar_header{typeflag = ?TYPE_CHAR}=Header) -> + set_device_info(Name, Header); +set_extracted_file_info(Name, #tar_header{typeflag = ?TYPE_BLOCK}=Header) -> + set_device_info(Name, Header); +set_extracted_file_info(Name, #tar_header{mtime=Mtime,mode=Mode}) -> + Info = #file_info{mode=Mode, mtime=Mtime}, + file:write_file_info(Name, Info). + +set_device_info(Name, #tar_header{}=Header) -> + Mtime = Header#tar_header.mtime, + Mode = Header#tar_header.mode, + Devmajor = Header#tar_header.devmajor, + Devminor = Header#tar_header.devminor, + Info = #file_info{ + mode=Mode, + mtime=Mtime, + major_device=Devmajor, + minor_device=Devminor + }, file:write_file_info(Name, Info). %% Makes all directories leading up to the file. make_dirs(Name, file) -> - filelib:ensure_dir(Name); + filelib:ensure_dir(Name); make_dirs(Name, dir) -> - filelib:ensure_dir(filename:join(Name,"*")). + filelib:ensure_dir(filename:join(Name,"*")). %% Prints the message on if the verbose option is given (for reading). - read_verbose(#read_opts{verbose=true}, Format, Args) -> - io:format(Format, Args), - io:nl(); + io:format(Format, Args); read_verbose(_, _, _) -> ok. - -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%%% -%%% Utility functions. -%%% -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -%% Returns the checksum of a binary. - -checksum(Bin) -> checksum(Bin, 0). - -checksum(<<A,B,C,D,E,F,G,H,T/binary>>, Sum) -> - checksum(T, Sum+A+B+C+D+E+F+G+H); -checksum(<<A,T/binary>>, Sum) -> - checksum(T, Sum+A); -checksum(<<>>, Sum) -> Sum. - -%% Returns a list of zeroes to pad out to the given block size. - -padding(Size, BlockSize) -> - zeroes(pad_size(Size, BlockSize)). - -pad_size(Size, BlockSize) -> - case Size rem BlockSize of - 0 -> 0; - Rem -> BlockSize-Rem - end. - -zeroes(0) -> []; -zeroes(1) -> [0]; -zeroes(2) -> [0,0]; -zeroes(Number) -> - Half = zeroes(Number div 2), - case Number rem 2 of - 0 -> [Half|Half]; - 1 -> [Half|[0|Half]] - end. - -%% Skips the given number of bytes rounded up to an even record. - -skip(File, Size) -> - %% Note: There is no point in handling failure to get the current position - %% in the file. If it doesn't work, something serious is wrong. - Amount = ((Size + ?record_size - 1) div ?record_size) * ?record_size, - {ok,_} = do_position(File, {cur, Amount}), - ok. - -%% Skips to the next record in the file. - -skip_to_next(File) -> - %% Note: There is no point in handling failure to get the current position - %% in the file. If it doesn't work, something serious is wrong. - {ok, Position} = do_position(File, {cur, 0}), - NewPosition = ((Position + ?record_size - 1) div ?record_size) * ?record_size, - {ok,NewPosition} = do_position(File, NewPosition), - ok. - %% Prints the message on if the verbose option is given. - add_verbose(#add_opts{verbose=true}, Format, Args) -> io:format(Format, Args); add_verbose(_, _, _) -> ok. -%% Converts a tuple containing the time to a Posix time (seconds -%% since Jan 1, 1970). +%%%%%%%%%%%%%%%%%% +%% I/O primitives +%%%%%%%%%%%%%%%%%% + +do_write(#reader{handle=Handle,func=Fun}=Reader0, Data) + when is_function(Fun,2) -> + case Fun(write,{Handle,Data}) of + ok -> + {ok, Pos, Reader1} = do_position(Reader0, {cur,0}), + {ok, Reader1#reader{pos=Pos}}; + {error, _} = Err -> + Err + end. -posix_time(Time) -> - EpochStart = {{1970,1,1},{0,0,0}}, - {Days,{Hour,Min,Sec}} = calendar:time_difference(EpochStart, Time), - 86400*Days + 3600*Hour + 60*Min + Sec. +do_copy(#reader{func=Fun}=Reader, Source, #add_opts{chunk_size=0}=Opts) + when is_function(Fun, 2) -> + do_copy(Reader, Source, Opts#add_opts{chunk_size=65536}); +do_copy(#reader{func=Fun}=Reader, Source, #add_opts{chunk_size=ChunkSize}) + when is_function(Fun, 2) -> + case file:open(Source, [read, binary]) of + {ok, SourceFd} -> + case copy_chunked(Reader, SourceFd, ChunkSize, 0) of + {ok, _Copied, _Reader2} = Ok-> + _ = file:close(SourceFd), + Ok; + Err -> + _ = file:close(SourceFd), + throw(Err) + end; + Err -> + throw(Err) + end. -posix_to_erlang_time(Sec) -> - OneMillion = 1000000, - Time = calendar:now_to_datetime({Sec div OneMillion, Sec rem OneMillion, 0}), - erlang:universaltime_to_localtime(Time). +copy_chunked(#reader{}=Reader, Source, ChunkSize, Copied) -> + case file:read(Source, ChunkSize) of + {ok, Bin} -> + {ok, Reader2} = do_write(Reader, Bin), + copy_chunked(Reader2, Source, ChunkSize, Copied+byte_size(Bin)); + eof -> + {ok, Copied, Reader}; + Other -> + Other + end. -read_file_and_info(Name, Opts) -> - ReadInfo = Opts#add_opts.read_info, - case ReadInfo(Name) of - {ok,Info} when Info#file_info.type =:= regular, - Opts#add_opts.chunk_size>0 -> - {ok,chunked,Info}; - {ok,Info} when Info#file_info.type =:= regular -> - case file:read_file(Name) of - {ok,Bin} -> - {ok,Bin,Info}; - Error -> - Error - end; - {ok,Info} when Info#file_info.type =:= symlink -> - case file:read_link(Name) of - {ok,PointsTo} -> - {ok,PointsTo,Info}; - Error -> - Error - end; - {ok, Info} -> - {ok,[],Info}; - Error -> - Error + +do_position(#reader{handle=Handle,func=Fun}=Reader, Pos) + when is_function(Fun,2)-> + case Fun(position, {Handle,Pos}) of + {ok, NewPos} -> + %% since Pos may not always be an absolute seek, + %% make sure we update the reader with the new absolute position + {ok, AbsPos} = Fun(position, {Handle, {cur, 0}}), + {ok, NewPos, Reader#reader{pos=AbsPos}}; + Other -> + Other end. -foreach_while_ok(Fun, [First|Rest]) -> - case Fun(First) of - ok -> foreach_while_ok(Fun, Rest); - Other -> Other +do_read(#reg_file_reader{handle=Handle,pos=Pos,size=Size}=Reader, Len) -> + NumBytes = Size - Pos, + ActualLen = if NumBytes - Len < 0 -> NumBytes; true -> Len end, + case do_read(Handle, ActualLen) of + {ok, Bin, Handle2} -> + NewPos = Pos + ActualLen, + NumBytes2 = Size - NewPos, + Reader1 = Reader#reg_file_reader{ + handle=Handle2, + pos=NewPos, + num_bytes=NumBytes2}, + {ok, Bin, Reader1}; + Other -> + Other end; -foreach_while_ok(_, []) -> ok. - -open_mode(Mode) -> - open_mode(Mode, false, [raw], []). +do_read(#sparse_file_reader{}=Reader, Len) -> + do_sparse_read(Reader, Len); +do_read(#reader{pos=Pos,handle=Handle,func=Fun}=Reader, Len) + when is_function(Fun,2)-> + %% Always convert to binary internally + case Fun(read2,{Handle,Len}) of + {ok, List} when is_list(List) -> + Bin = list_to_binary(List), + NewPos = Pos+byte_size(Bin), + {ok, Bin, Reader#reader{pos=NewPos}}; + {ok, Bin} when is_binary(Bin) -> + NewPos = Pos+byte_size(Bin), + {ok, Bin, Reader#reader{pos=NewPos}}; + Other -> + Other + end. -open_mode(read, _, Raw, _) -> - {ok, read, Raw, []}; -open_mode(write, _, Raw, _) -> - {ok, write, Raw, []}; -open_mode([read|Rest], false, Raw, Opts) -> - open_mode(Rest, read, Raw, Opts); -open_mode([write|Rest], false, Raw, Opts) -> - open_mode(Rest, write, Raw, Opts); -open_mode([compressed|Rest], Access, Raw, Opts) -> - open_mode(Rest, Access, Raw, [compressed|Opts]); -open_mode([cooked|Rest], Access, _Raw, Opts) -> - open_mode(Rest, Access, [], Opts); -open_mode([], Access, Raw, Opts) -> - {ok, Access, Raw, Opts}; -open_mode(_, _, _, _) -> - {error, einval}. -%%%================================================================ -do_write({tar_descriptor,UsrHandle,Fun}, Data) -> Fun(write,{UsrHandle,Data}). +do_sparse_read(Reader, Len) -> + do_sparse_read(Reader, Len, <<>>). + +do_sparse_read(#sparse_file_reader{sparse_map=[#sparse_entry{num_bytes=0}|Entries] + }=Reader0, Len, Acc) -> + %% skip all empty fragments + Reader1 = Reader0#sparse_file_reader{sparse_map=Entries}, + do_sparse_read(Reader1, Len, Acc); +do_sparse_read(#sparse_file_reader{sparse_map=[], + pos=Pos,size=Size}=Reader0, Len, Acc) + when Pos < Size -> + %% if there are no more fragments, it is possible that there is one last sparse hole + %% this behaviour matches the BSD tar utility + %% however, GNU tar stops returning data even if we haven't reached the end + {ok, Bin, Reader1} = read_sparse_hole(Reader0, Size, Len), + do_sparse_read(Reader1, Len-byte_size(Bin), <<Acc/binary,Bin/binary>>); +do_sparse_read(#sparse_file_reader{sparse_map=[]}=Reader, _Len, Acc) -> + {ok, Acc, Reader}; +do_sparse_read(#sparse_file_reader{}=Reader, 0, Acc) -> + {ok, Acc, Reader}; +do_sparse_read(#sparse_file_reader{sparse_map=[#sparse_entry{offset=Offset}|_], + pos=Pos}=Reader0, Len, Acc) + when Pos < Offset -> + {ok, Bin, Reader1} = read_sparse_hole(Reader0, Offset, Offset-Pos), + do_sparse_read(Reader1, Len-byte_size(Bin), <<Acc/binary,Bin/binary>>); +do_sparse_read(#sparse_file_reader{sparse_map=[Entry|Entries], + pos=Pos}=Reader0, Len, Acc) -> + %% we're in a data fragment, so read from it + %% end offset of fragment + EndPos = Entry#sparse_entry.offset + Entry#sparse_entry.num_bytes, + %% bytes left in fragment + NumBytes = EndPos - Pos, + ActualLen = if Len > NumBytes -> NumBytes; true -> Len end, + case do_read(Reader0#sparse_file_reader.handle, ActualLen) of + {ok, Bin, Handle} -> + BytesRead = byte_size(Bin), + ActualEndPos = Pos+BytesRead, + Reader1 = if ActualEndPos =:= EndPos -> + Reader0#sparse_file_reader{sparse_map=Entries}; + true -> + Reader0 + end, + Size = Reader1#sparse_file_reader.size, + NumBytes2 = Size - ActualEndPos, + Reader2 = Reader1#sparse_file_reader{ + handle=Handle, + pos=ActualEndPos, + num_bytes=NumBytes2}, + do_sparse_read(Reader2, Len-byte_size(Bin), <<Acc/binary,Bin/binary>>); + Other -> + Other + end. + +%% Reads a sparse hole ending at Offset +read_sparse_hole(#sparse_file_reader{pos=Pos}=Reader, Offset, Len) -> + N = Offset - Pos, + N2 = if N > Len -> + Len; + true -> + N + end, + Bin = <<0:N2/unit:8>>, + NumBytes = Reader#sparse_file_reader.size - (Pos+N2), + {ok, Bin, Reader#sparse_file_reader{ + num_bytes=NumBytes, + pos=Pos+N2}}. + +-spec do_close(reader()) -> ok | {error, term()}. +do_close(#reader{handle=Handle,func=Fun}) when is_function(Fun,2) -> + Fun(close,Handle). + +%%%%%%%%%%%%%%%%%% +%% Option parsing +%%%%%%%%%%%%%%%%%% -do_position({tar_descriptor,UsrHandle,Fun}, Pos) -> Fun(position,{UsrHandle,Pos}). +extract_opts(List) -> + extract_opts(List, default_options()). -do_read({tar_descriptor,UsrHandle,Fun}, Len) -> Fun(read2,{UsrHandle,Len}). +table_opts(List) -> + read_opts(List, default_options()). + +default_options() -> + {ok, Cwd} = file:get_cwd(), + #read_opts{cwd=Cwd}. -do_close({tar_descriptor,UsrHandle,Fun}) -> Fun(close,UsrHandle). +extract_opts([keep_old_files|Rest], Opts) -> + extract_opts(Rest, Opts#read_opts{keep_old_files=true}); +extract_opts([{cwd, Cwd}|Rest], Opts) -> + extract_opts(Rest, Opts#read_opts{cwd=Cwd}); +extract_opts([{files, Files}|Rest], Opts) -> + Set = ordsets:from_list(Files), + extract_opts(Rest, Opts#read_opts{files=Set}); +extract_opts([memory|Rest], Opts) -> + extract_opts(Rest, Opts#read_opts{output=memory}); +extract_opts([compressed|Rest], Opts=#read_opts{open_mode=OpenMode}) -> + extract_opts(Rest, Opts#read_opts{open_mode=[compressed|OpenMode]}); +extract_opts([cooked|Rest], Opts=#read_opts{open_mode=OpenMode}) -> + extract_opts(Rest, Opts#read_opts{open_mode=[cooked|OpenMode]}); +extract_opts([verbose|Rest], Opts) -> + extract_opts(Rest, Opts#read_opts{verbose=true}); +extract_opts([Other|Rest], Opts) -> + extract_opts(Rest, read_opts([Other], Opts)); +extract_opts([], Opts) -> + Opts. + +read_opts([compressed|Rest], Opts=#read_opts{open_mode=OpenMode}) -> + read_opts(Rest, Opts#read_opts{open_mode=[compressed|OpenMode]}); +read_opts([cooked|Rest], Opts=#read_opts{open_mode=OpenMode}) -> + read_opts(Rest, Opts#read_opts{open_mode=[cooked|OpenMode]}); +read_opts([verbose|Rest], Opts) -> + read_opts(Rest, Opts#read_opts{verbose=true}); +read_opts([_|Rest], Opts) -> + read_opts(Rest, Opts); +read_opts([], Opts) -> + Opts. diff --git a/lib/stdlib/src/erl_tar.hrl b/lib/stdlib/src/erl_tar.hrl new file mode 100644 index 0000000000..d646d02989 --- /dev/null +++ b/lib/stdlib/src/erl_tar.hrl @@ -0,0 +1,394 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 2017. 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% + +%% Options used when adding files to a tar archive. +-record(add_opts, { + read_info, %% Fun to use for read file/link info. + chunk_size = 0, %% For file reading when sending to sftp. 0=do not chunk + verbose = false}). %% Verbose on/off. +-type add_opts() :: #add_opts{}. + +%% Options used when reading a tar archive. +-record(read_opts, { + cwd :: string(), %% Current working directory. + keep_old_files = false :: boolean(), %% Owerwrite or not. + files = all, %% Set of files to extract (or all) + output = file :: 'file' | 'memory', + open_mode = [], %% Open mode options. + verbose = false :: boolean()}). %% Verbose on/off. +-type read_opts() :: #read_opts{}. + +-type add_opt() :: dereference | + verbose | + {chunks, pos_integer()}. + +-type extract_opt() :: {cwd, string()} | + {files, [string()]} | + compressed | + cooked | + memory | + keep_old_files | + verbose. + +-type create_opt() :: compressed | + cooked | + dereference | + verbose. + +-type filelist() :: [file:filename() | + {string(), binary()} | + {string(), file:filename()}]. + +%% The tar header, once fully parsed. +-record(tar_header, { + name = "" :: string(), %% name of header file entry + mode = 8#100644 :: non_neg_integer(), %% permission and mode bits + uid = 0 :: non_neg_integer(), %% user id of owner + gid = 0 :: non_neg_integer(), %% group id of owner + size = 0 :: non_neg_integer(), %% length in bytes + mtime :: calendar:datetime(), %% modified time + typeflag :: char(), %% type of header entry + linkname = "" :: string(), %% target name of link + uname = "" :: string(), %% user name of owner + gname = "" :: string(), %% group name of owner + devmajor = 0 :: non_neg_integer(), %% major number of character or block device + devminor = 0 :: non_neg_integer(), %% minor number of character or block device + atime :: calendar:datetime(), %% access time + ctime :: calendar:datetime() %% status change time + }). +-type tar_header() :: #tar_header{}. + +%% Metadata for a sparse file fragment +-record(sparse_entry, { + offset = 0 :: non_neg_integer(), + num_bytes = 0 :: non_neg_integer()}). +-type sparse_entry() :: #sparse_entry{}. +%% Contains metadata about fragments of a sparse file +-record(sparse_array, { + entries = [] :: [sparse_entry()], + is_extended = false :: boolean(), + max_entries = 0 :: non_neg_integer()}). +-type sparse_array() :: #sparse_array{}. +%% A subset of tar header fields common to all tar implementations +-record(header_v7, { + name :: binary(), + mode :: binary(), %% octal + uid :: binary(), %% integer + gid :: binary(), %% integer + size :: binary(), %% integer + mtime :: binary(), %% integer + checksum :: binary(), %% integer + typeflag :: byte(), %% char + linkname :: binary()}). +-type header_v7() :: #header_v7{}. +%% The set of fields specific to GNU tar formatted archives +-record(header_gnu, { + header_v7 :: header_v7(), + magic :: binary(), + version :: binary(), + uname :: binary(), + gname :: binary(), + devmajor :: binary(), %% integer + devminor :: binary(), %% integer + atime :: binary(), %% integer + ctime :: binary(), %% integer + sparse :: sparse_array(), + real_size :: binary()}). %% integer +-type header_gnu() :: #header_gnu{}. +%% The set of fields specific to STAR-formatted archives +-record(header_star, { + header_v7 :: header_v7(), + magic :: binary(), + version :: binary(), + uname :: binary(), + gname :: binary(), + devmajor :: binary(), %% integer + devminor :: binary(), %% integer + prefix :: binary(), + atime :: binary(), %% integer + ctime :: binary(), %% integer + trailer :: binary()}). +-type header_star() :: #header_star{}. +%% The set of fields specific to USTAR-formatted archives +-record(header_ustar, { + header_v7 :: header_v7(), + magic :: binary(), + version :: binary(), + uname :: binary(), + gname :: binary(), + devmajor :: binary(), %% integer + devminor :: binary(), %% integer + prefix :: binary()}). +-type header_ustar() :: #header_ustar{}. + +-type header_fields() :: header_v7() | + header_gnu() | + header_star() | + header_ustar(). + +%% The overall tar reader, it holds the low-level file handle, +%% its access, position, and the I/O primitives wrapper. +-record(reader, { + handle :: file:io_device() | term(), + access :: read | write | ram, + pos = 0 :: non_neg_integer(), + func :: file_op() + }). +-type reader() :: #reader{}. +%% A reader for a regular file within the tar archive, +%% It tracks its current state relative to that file. +-record(reg_file_reader, { + handle :: reader(), + num_bytes = 0, + pos = 0, + size = 0 + }). +-type reg_file_reader() :: #reg_file_reader{}. +%% A reader for a sparse file within the tar archive, +%% It tracks its current state relative to that file. +-record(sparse_file_reader, { + handle :: reader(), + num_bytes = 0, %% bytes remaining + pos = 0, %% pos + size = 0, %% total size of file + sparse_map = #sparse_array{} + }). +-type sparse_file_reader() :: #sparse_file_reader{}. + +%% Types for the readers +-type reader_type() :: reader() | reg_file_reader() | sparse_file_reader(). +-type handle() :: file:io_device() | term(). + +%% Type for the I/O primitive wrapper function +-type file_op() :: fun((write | close | read2 | position, + {handle(), iodata()} | handle() | {handle(), non_neg_integer()} + | {handle(), non_neg_integer()}) -> + ok | eof | {ok, string() | binary()} | {ok, non_neg_integer()} + | {error, term()}). + +%% These constants (except S_IFMT) are +%% used to determine what type of device +%% a file is. Namely, `S_IFMT band file_info.mode` +%% will equal one of these contants, and tells us +%% which type it is. The stdlib file_info record +%% does not differentiate between device types, and +%% will not allow us to differentiate between sockets +%% and named pipes. These constants are pulled from libc. +-define(S_IFMT, 61440). +-define(S_IFSOCK, 49152). %% socket +-define(S_FIFO, 4096). %% fifo/named pipe +-define(S_IFBLK, 24576). %% block device +-define(S_IFCHR, 8192). %% character device + +%% Typeflag constants for the tar header +-define(TYPE_REGULAR, $0). %% regular file +-define(TYPE_REGULAR_A, 0). %% regular file +-define(TYPE_LINK, $1). %% hard link +-define(TYPE_SYMLINK, $2). %% symbolic link +-define(TYPE_CHAR, $3). %% character device node +-define(TYPE_BLOCK, $4). %% block device node +-define(TYPE_DIR, $5). %% directory +-define(TYPE_FIFO, $6). %% fifo node +-define(TYPE_CONT, $7). %% reserved +-define(TYPE_X_HEADER, $x). %% extended header +-define(TYPE_X_GLOBAL_HEADER, $g). %% global extended header +-define(TYPE_GNU_LONGNAME, $L). %% next file has a long name +-define(TYPE_GNU_LONGLINK, $K). %% next file symlinks to a file with a long name +-define(TYPE_GNU_SPARSE, $S). %% sparse file + +%% Mode constants from tar spec +-define(MODE_ISUID, 4000). %% set uid +-define(MODE_ISGID, 2000). %% set gid +-define(MODE_ISVTX, 1000). %% save text (sticky bit) +-define(MODE_ISDIR, 40000). %% directory +-define(MODE_ISFIFO, 10000). %% fifo +-define(MODE_ISREG, 100000). %% regular file +-define(MODE_ISLNK, 120000). %% symbolic link +-define(MODE_ISBLK, 60000). %% block special file +-define(MODE_ISCHR, 20000). %% character special file +-define(MODE_ISSOCK, 140000). %% socket + +%% Keywords for PAX extended header +-define(PAX_ATIME, <<"atime">>). +-define(PAX_CHARSET, <<"charset">>). +-define(PAX_COMMENT, <<"comment">>). +-define(PAX_CTIME, <<"ctime">>). %% ctime is not a valid pax header +-define(PAX_GID, <<"gid">>). +-define(PAX_GNAME, <<"gname">>). +-define(PAX_LINKPATH, <<"linkpath">>). +-define(PAX_MTIME, <<"mtime">>). +-define(PAX_PATH, <<"path">>). +-define(PAX_SIZE, <<"size">>). +-define(PAX_UID, <<"uid">>). +-define(PAX_UNAME, <<"uname">>). +-define(PAX_XATTR, <<"SCHILY.xattr.">>). +-define(PAX_XATTR_STR, "SCHILY.xattr."). +-define(PAX_NONE, <<"">>). + +%% Tar format constants +%% Unknown format +-define(FORMAT_UNKNOWN, 0). +%% The format of the original Unix V7 tar tool prior to standardization +-define(FORMAT_V7, 1). +%% The old and new GNU formats, incompatible with USTAR. +%% This covers the old GNU sparse extension, but it does +%% not cover the GNU sparse extensions using PAX headers, +%% versions 0.0, 0.1, and 1.0; these fall under the PAX format. +-define(FORMAT_GNU, 2). +%% Schily's tar format, which is incompatible with USTAR. +%% This does not cover STAR extensions to the PAX format; these +%% fall under the PAX format. +-define(FORMAT_STAR, 3). +%% USTAR is the former standardization of tar defined in POSIX.1-1988, +%% it is incompatible with the GNU and STAR formats. +-define(FORMAT_USTAR, 4). +%% PAX is the latest standardization of tar defined in POSIX.1-2001. +%% This is an extension of USTAR and is "backwards compatible" with it. +%% +%% Some newer formats add their own extensions to PAX, such as GNU sparse +%% files and SCHILY extended attributes. Since they are backwards compatible +%% with PAX, they will be labelled as "PAX". +-define(FORMAT_PAX, 5). + +%% Magic constants +-define(MAGIC_GNU, <<"ustar ">>). +-define(VERSION_GNU, <<" \x00">>). +-define(MAGIC_USTAR, <<"ustar\x00">>). +-define(VERSION_USTAR, <<"00">>). +-define(TRAILER_STAR, <<"tar\x00">>). + +%% Size constants +-define(BLOCK_SIZE, 512). %% size of each block in a tar stream +-define(NAME_SIZE, 100). %% max length of the name field in USTAR format +-define(PREFIX_SIZE, 155). %% max length of the prefix field in USTAR format + +%% Maximum size of a nanosecond value as an integer +-define(MAX_NANO_INT_SIZE, 9). +%% Maximum size of a 64-bit signed integer +-define(MAX_INT64, (1 bsl 63 - 1)). + +-define(PAX_GNU_SPARSE_NUMBLOCKS, <<"GNU.sparse.numblocks">>). +-define(PAX_GNU_SPARSE_OFFSET, <<"GNU.sparse.offset">>). +-define(PAX_GNU_SPARSE_NUMBYTES, <<"GNU.sparse.numbytes">>). +-define(PAX_GNU_SPARSE_MAP, <<"GNU.sparse.map">>). +-define(PAX_GNU_SPARSE_NAME, <<"GNU.sparse.name">>). +-define(PAX_GNU_SPARSE_MAJOR, <<"GNU.sparse.major">>). +-define(PAX_GNU_SPARSE_MINOR, <<"GNU.sparse.minor">>). +-define(PAX_GNU_SPARSE_SIZE, <<"GNU.sparse.size">>). +-define(PAX_GNU_SPARSE_REALSIZE, <<"GNU.sparse.realsize">>). + +-define(V7_NAME, 0). +-define(V7_NAME_LEN, 100). +-define(V7_MODE, 100). +-define(V7_MODE_LEN, 8). +-define(V7_UID, 108). +-define(V7_UID_LEN, 8). +-define(V7_GID, 116). +-define(V7_GID_LEN, 8). +-define(V7_SIZE, 124). +-define(V7_SIZE_LEN, 12). +-define(V7_MTIME, 136). +-define(V7_MTIME_LEN, 12). +-define(V7_CHKSUM, 148). +-define(V7_CHKSUM_LEN, 8). +-define(V7_TYPE, 156). +-define(V7_TYPE_LEN, 1). +-define(V7_LINKNAME, 157). +-define(V7_LINKNAME_LEN, 100). + +-define(STAR_TRAILER, 508). +-define(STAR_TRAILER_LEN, 4). + +-define(USTAR_MAGIC, 257). +-define(USTAR_MAGIC_LEN, 6). +-define(USTAR_VERSION, 263). +-define(USTAR_VERSION_LEN, 2). +-define(USTAR_UNAME, 265). +-define(USTAR_UNAME_LEN, 32). +-define(USTAR_GNAME, 297). +-define(USTAR_GNAME_LEN, 32). +-define(USTAR_DEVMAJ, 329). +-define(USTAR_DEVMAJ_LEN, 8). +-define(USTAR_DEVMIN, 337). +-define(USTAR_DEVMIN_LEN, 8). +-define(USTAR_PREFIX, 345). +-define(USTAR_PREFIX_LEN, 155). + +-define(GNU_MAGIC, 257). +-define(GNU_MAGIC_LEN, 6). +-define(GNU_VERSION, 263). +-define(GNU_VERSION_LEN, 2). + +%% ?BLOCK_SIZE of zero-bytes. +%% Two of these in a row mark the end of an archive. +-define(ZERO_BLOCK, <<0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0,0,0>>). + +-define(BILLION, 1000000000). + +-define(EPOCH, {{1970,1,1}, {0,0,0}}). diff --git a/lib/stdlib/src/filename.erl b/lib/stdlib/src/filename.erl index 2a2f25dcd2..b5df5c9d37 100644 --- a/lib/stdlib/src/filename.erl +++ b/lib/stdlib/src/filename.erl @@ -37,7 +37,8 @@ -export([absname/1, absname/2, absname_join/2, basename/1, basename/2, dirname/1, extension/1, join/1, join/2, pathtype/1, - rootname/1, rootname/2, split/1, flatten/1, nativename/1]). + rootname/1, rootname/2, split/1, flatten/1, nativename/1, + safe_relative_path/1]). -export([find_src/1, find_src/2]). % deprecated -export([basedir/2, basedir/3]). @@ -753,12 +754,46 @@ separators() -> _ -> {false, false} end. +-spec safe_relative_path(Filename) -> 'unsafe' | SafeFilename when + Filename :: file:name_all(), + SafeFilename :: file:name_all(). + +safe_relative_path(Path) -> + case pathtype(Path) of + relative -> + Cs0 = split(Path), + safe_relative_path_1(Cs0, []); + _ -> + unsafe + end. + +safe_relative_path_1(["."|T], Acc) -> + safe_relative_path_1(T, Acc); +safe_relative_path_1([<<".">>|T], Acc) -> + safe_relative_path_1(T, Acc); +safe_relative_path_1([".."|T], Acc) -> + climb(T, Acc); +safe_relative_path_1([<<"..">>|T], Acc) -> + climb(T, Acc); +safe_relative_path_1([H|T], Acc) -> + safe_relative_path_1(T, [H|Acc]); +safe_relative_path_1([], []) -> + []; +safe_relative_path_1([], Acc) -> + join(lists:reverse(Acc)). + +climb(_, []) -> + unsafe; +climb(T, [_|Acc]) -> + safe_relative_path_1(T, Acc). + %% NOTE: The find_src/1/2 functions are deprecated; they try to do too much %% at once and are not a good fit for this module. Parts of the code have %% been moved to filelib:find_file/2 instead. Only this part of this %% module is allowed to call the filelib module; such mutual dependency %% should otherwise be avoided! This code should eventually be removed. %% + %% find_src(Module) -- %% find_src(Module, Rules) -- %% diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl index 4839fe4f2c..0aebf1bdc5 100644 --- a/lib/stdlib/src/gen_event.erl +++ b/lib/stdlib/src/gen_event.erl @@ -778,7 +778,7 @@ stop_handlers([], _) -> []. %% Message from the release_handler. -%% The list of modules got to be a set ! +%% The list of modules got to be a set, i.e. no duplicate elements! get_modules(MSL) -> Mods = [Handler#handler.module || Handler <- MSL], ordsets:to_list(ordsets:from_list(Mods)). diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl index 6e7528fd98..e925a75fe8 100644 --- a/lib/stdlib/src/gen_fsm.erl +++ b/lib/stdlib/src/gen_fsm.erl @@ -273,7 +273,7 @@ start_timer(Time, Msg) -> send_event_after(Time, Event) -> erlang:start_timer(Time, self(), {'$gen_event', Event}). -%% Returns the remaing time for the timer if Ref referred to +%% Returns the remaining time for the timer if Ref referred to %% an active timer/send_event_after, false otherwise. cancel_timer(Ref) -> case erlang:cancel_timer(Ref) of diff --git a/lib/stdlib/src/gen_statem.erl b/lib/stdlib/src/gen_statem.erl index 018aca90e6..cacc932ec4 100644 --- a/lib/stdlib/src/gen_statem.erl +++ b/lib/stdlib/src/gen_statem.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2016. All Rights Reserved. +%% Copyright Ericsson AB 2016-2017. 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. @@ -47,15 +47,17 @@ %% Type exports for templates and callback modules -export_type( [event_type/0, - init_result/0, callback_mode_result/0, - state_function_result/0, - handle_event_result/0, + init_result/1, state_enter_result/1, event_handler_result/1, reply_action/0, enter_action/0, action/0]). +%% Old types, not advertised +-export_type( + [state_function_result/0, + handle_event_result/0]). %% Type that is exported just to be documented -export_type([transition_option/0]). @@ -143,9 +145,10 @@ {'reply', % Reply to a caller From :: from(), Reply :: term()}. --type init_result() :: - {ok, state(), data()} | - {ok, state(), data(), [action()] | action()} | +-type init_result(StateType) :: + {ok, State :: StateType, Data :: data()} | + {ok, State :: StateType, Data :: data(), + Actions :: [action()] | action()} | 'ignore' | {'stop', Reason :: term()}. @@ -182,12 +185,23 @@ 'keep_state_and_data' | % {keep_state_and_data,[]} {'keep_state_and_data', % Keep state and data -> only actions Actions :: [ActionType] | ActionType} | + %% + {'repeat_state', % {repeat_state,NewData,[]} + NewData :: data()} | + {'repeat_state', % Repeat state, change data + NewData :: data(), + Actions :: [ActionType] | ActionType} | + 'repeat_state_and_data' | % {repeat_state_and_data,[]} + {'repeat_state_and_data', % Repeat state and data -> only actions + Actions :: [ActionType] | ActionType} | + %% 'stop' | % {stop,normal} {'stop', % Stop the server Reason :: term()} | {'stop', % Stop the server Reason :: term(), NewData :: data()} | + %% {'stop_and_reply', % Reply then stop the server Reason :: term(), Replies :: [reply_action()] | reply_action()} | @@ -201,7 +215,7 @@ %% the server is not running until this function has returned %% an {ok, ...} tuple. Thereafter the state callbacks are called %% for all events to this server. --callback init(Args :: term()) -> init_result(). +-callback init(Args :: term()) -> init_result(state()). %% This callback shall return the callback mode of the callback module. %% @@ -275,6 +289,8 @@ -optional_callbacks( [init/1, % One may use enter_loop/5,6,7 instead format_status/2, % Has got a default implementation + terminate/3, % Has got a default implementation + code_change/4, % Only needed by advanced soft upgrade %% state_name/3, % Example for callback_mode() =:= state_functions: %% there has to be a StateName/3 callback function @@ -304,12 +320,16 @@ event_type({call,From}) -> from(From); event_type(Type) -> case Type of + {call,From} -> + from(From); cast -> true; info -> true; timeout -> true; + state_timeout -> + true; internal -> true; _ -> @@ -588,6 +608,22 @@ enter(Module, Opts, State, Data, Server, Actions, Parent) -> true -> [Actions,{postpone,false}] end, + TimerRefs = #{}, + %% Key: timer ref + %% Value: the timer type i.e the timer's event type + %% + TimerTypes = #{}, + %% Key: timer type i.e the timer's event type + %% Value: timer ref + %% + %% We add a timer to both timer_refs and timer_types + %% when we start it. When we request an asynchronous + %% timer cancel we remove it from timer_types. When + %% the timer cancel message arrives we remove it from + %% timer_refs. + %% + Hibernate = false, + CancelTimers = 0, S = #{ callback_mode => undefined, state_enter => false, @@ -596,25 +632,25 @@ enter(Module, Opts, State, Data, Server, Actions, Parent) -> state => State, data => Data, postponed => P, - %% The rest of the fields are set from to the arguments to - %% loop_event_actions/10 when it finally loops back to loop/3 - %% in loop_events/10 %% - %% Marker for initial state, cleared immediately when used - init_state => true + %% The following fields are finally set from to the arguments to + %% loop_event_actions/9 when it finally loops back to loop/3 + %% in loop_event_result/11 + timer_refs => TimerRefs, + timer_types => TimerTypes, + hibernate => Hibernate, + cancel_timers => CancelTimers }, NewDebug = sys_debug(Debug, S, State, {enter,Event,State}), case call_callback_mode(S) of {ok,NewS} -> - TimerRefs = #{}, - TimerTypes = #{}, loop_event_actions( - Parent, NewDebug, NewS, TimerRefs, TimerTypes, - Events, Event, State, Data, NewActions); + Parent, NewDebug, NewS, + Events, Event, State, Data, NewActions, true); {Class,Reason,Stacktrace} -> terminate( - Class, Reason, Stacktrace, - NewDebug, S, [Event|Events]) + Class, Reason, Stacktrace, NewDebug, + S, [Event|Events]) end. %%%========================================================================== @@ -683,9 +719,7 @@ system_continue(Parent, Debug, S) -> loop(Parent, Debug, S). system_terminate(Reason, _Parent, Debug, S) -> - terminate( - exit, Reason, ?STACKTRACE(), - Debug, S, []). + terminate(exit, Reason, ?STACKTRACE(), Debug, S, []). system_code_change( #{module := Module, @@ -796,23 +830,22 @@ wakeup_from_hibernate(Parent, Debug, S) -> %% and detours through sys:handle_system_message/7 and proc_lib:hibernate/3 %% Entry point for system_continue/3 -loop(Parent, Debug, #{hibernate := Hibernate} = S) -> - case Hibernate of - true -> - %% Does not return but restarts process at - %% wakeup_from_hibernate/3 that jumps to loop_receive/3 - proc_lib:hibernate( - ?MODULE, wakeup_from_hibernate, [Parent,Debug,S]), - error( - {should_not_have_arrived_here_but_instead_in, - {wakeup_from_hibernate,3}}); - false -> - loop_receive(Parent, Debug, S) - end. +loop(Parent, Debug, #{hibernate := true, cancel_timers := 0} = S) -> + loop_hibernate(Parent, Debug, S); +loop(Parent, Debug, S) -> + loop_receive(Parent, Debug, S). + +loop_hibernate(Parent, Debug, S) -> + %% Does not return but restarts process at + %% wakeup_from_hibernate/3 that jumps to loop_receive/3 + proc_lib:hibernate( + ?MODULE, wakeup_from_hibernate, [Parent,Debug,S]), + error( + {should_not_have_arrived_here_but_instead_in, + {wakeup_from_hibernate,3}}). %% Entry point for wakeup_from_hibernate/3 -loop_receive( - Parent, Debug, #{timer_refs := TimerRefs, timer_types := TimerTypes} = S) -> +loop_receive(Parent, Debug, S) -> receive Msg -> case Msg of @@ -821,30 +854,87 @@ loop_receive( %% Does not return but tail recursively calls %% system_continue/3 that jumps to loop/3 sys:handle_system_msg( - Req, Pid, Parent, ?MODULE, Debug, S, Hibernate); + Req, Pid, Parent, ?MODULE, Debug, S, + Hibernate); {'EXIT',Parent,Reason} = EXIT -> - %% EXIT is not a 2-tuple and therefore - %% not an event and has no event_type(), - %% but this will stand out in the crash report... - terminate( - exit, Reason, ?STACKTRACE(), Debug, S, [EXIT]); + %% EXIT is not a 2-tuple therefore + %% not an event but this will stand out + %% in the crash report... + Q = [EXIT], + terminate(exit, Reason, ?STACKTRACE(), Debug, S, Q); {timeout,TimerRef,TimerMsg} -> + #{timer_refs := TimerRefs, + timer_types := TimerTypes, + hibernate := Hibernate} = S, case TimerRefs of #{TimerRef := TimerType} -> - Event = {TimerType,TimerMsg}, - %% Unregister the triggered timeout + %% We know of this timer; is it a running + %% timer or a timer being cancelled that + %% managed to send a late timeout message? + case TimerTypes of + #{TimerType := TimerRef} -> + %% The timer type maps back to this + %% timer ref, so it was a running timer + Event = {TimerType,TimerMsg}, + %% Unregister the triggered timeout + NewTimerRefs = + maps:remove(TimerRef, TimerRefs), + NewTimerTypes = + maps:remove(TimerType, TimerTypes), + loop_receive_result( + Parent, Debug, + S#{ + timer_refs := NewTimerRefs, + timer_types := NewTimerTypes}, + Hibernate, + Event); + _ -> + %% This was a late timeout message + %% from timer being cancelled, so + %% ignore it and expect a cancel_timer + %% msg shortly + loop_receive(Parent, Debug, S) + end; + _ -> + %% Not our timer; present it as an event + Event = {info,Msg}, loop_receive_result( - Parent, Debug, S, - maps:remove(TimerRef, TimerRefs), - maps:remove(TimerType, TimerTypes), - Event); + Parent, Debug, S, Hibernate, Event) + end; + {cancel_timer,TimerRef,_} -> + #{timer_refs := TimerRefs, + cancel_timers := CancelTimers, + hibernate := Hibernate} = S, + case TimerRefs of + #{TimerRef := _} -> + %% We must have requested a cancel + %% of this timer so it is already + %% removed from TimerTypes + NewTimerRefs = + maps:remove(TimerRef, TimerRefs), + NewCancelTimers = CancelTimers - 1, + NewS = + S#{ + timer_refs := NewTimerRefs, + cancel_timers := NewCancelTimers}, + if + Hibernate =:= true, NewCancelTimers =:= 0 -> + %% No more cancel_timer msgs to expect; + %% we can hibernate + loop_hibernate(Parent, Debug, NewS); + NewCancelTimers >= 0 -> % Assert + loop_receive(Parent, Debug, NewS) + end; _ -> + %% Not our cancel_timer msg; + %% present it as an event Event = {info,Msg}, loop_receive_result( - Parent, Debug, S, - TimerRefs, TimerTypes, Event) + Parent, Debug, S, Hibernate, Event) end; _ -> + %% External msg + #{hibernate := Hibernate} = S, Event = case Msg of {'$gen_call',From,Request} -> @@ -855,208 +945,212 @@ loop_receive( {info,Msg} end, loop_receive_result( - Parent, Debug, S, - TimerRefs, TimerTypes, Event) + Parent, Debug, S, Hibernate, Event) end end. loop_receive_result( - Parent, Debug, #{state := State} = S, - TimerRefs, TimerTypes, Event) -> - %% The fields 'timer_refs', 'timer_types' and 'hibernate' - %% are now invalid in state map S - they will be recalculated - %% and restored when we return to loop/3 - %% + Parent, Debug, + #{state := State, + timer_types := TimerTypes, cancel_timers := CancelTimers} = S, + Hibernate, Event) -> + %% From now the 'hibernate' field in S is invalid + %% and will be restored when looping back + %% in loop_event_result/11 NewDebug = sys_debug(Debug, S, State, {in,Event}), - %% Here the queue of not yet handled events is created + %% Here is the queue of not yet handled events created Events = [], - Hibernate = false, - loop_event( - Parent, NewDebug, S, TimerRefs, TimerTypes, Events, Event, Hibernate). + %% Cancel any running event timer + case + cancel_timer_by_type(timeout, TimerTypes, CancelTimers) + of + {_,CancelTimers} -> + %% No timer cancelled + loop_event(Parent, NewDebug, S, Events, Event, Hibernate); + {NewTimerTypes,NewCancelTimers} -> + %% The timer is removed from NewTimerTypes but + %% remains in TimerRefs until we get + %% the cancel_timer msg + NewS = + S#{ + timer_types := NewTimerTypes, + cancel_timers := NewCancelTimers}, + loop_event(Parent, NewDebug, NewS, Events, Event, Hibernate) + end. %% Entry point for handling an event, received or enqueued loop_event( - Parent, Debug, #{state := State, data := Data} = S, TimerRefs, TimerTypes, + Parent, Debug, + #{state := State, data := Data} = S, Events, {Type,Content} = Event, Hibernate) -> %% - %% If Hibernate is true here it can only be + %% If (this old) Hibernate is true here it can only be %% because it was set from an event action - %% and we did not go into hibernation since there - %% were events in queue, so we do what the user + %% and we did not go into hibernation since there were + %% events in queue, so we do what the user %% might rely on i.e collect garbage which %% would have happened if we actually hibernated %% and immediately was awakened Hibernate andalso garbage_collect(), case call_state_function(S, Type, Content, State, Data) of {ok,Result,NewS} -> - %% Cancel event timeout - {NewTimerRefs,NewTimerTypes} = - cancel_timer_by_type( - timeout, TimerRefs, TimerTypes), - {NewData,NextState,Actions} = + {NextState,NewData,Actions,EnterCall} = parse_event_result( - true, Debug, NewS, Result, - Events, Event, State, Data), + true, Debug, NewS, + Events, Event, State, Data, Result), loop_event_actions( - Parent, Debug, S, NewTimerRefs, NewTimerTypes, - Events, Event, NextState, NewData, Actions); + Parent, Debug, NewS, + Events, Event, NextState, NewData, Actions, EnterCall); {Class,Reason,Stacktrace} -> terminate( - Class, Reason, Stacktrace, Debug, S, [Event|Events]) + Class, Reason, Stacktrace, Debug, S, + [Event|Events]) end. loop_event_actions( Parent, Debug, - #{state := State, state_enter := StateEnter} = S, TimerRefs, TimerTypes, - Events, Event, NextState, NewData, Actions) -> + #{state := State, state_enter := StateEnter} = S, + Events, Event, NextState, NewData, + Actions, EnterCall) -> + %% Hibernate is reborn here as false being + %% the default value from parse_actions/4 case parse_actions(Debug, S, State, Actions) of {ok,NewDebug,Hibernate,TimeoutsR,Postpone,NextEventsR} -> if - StateEnter, NextState =/= State -> + StateEnter, EnterCall -> loop_event_enter( - Parent, NewDebug, S, TimerRefs, TimerTypes, + Parent, NewDebug, S, Events, Event, NextState, NewData, Hibernate, TimeoutsR, Postpone, NextEventsR); - StateEnter -> - case maps:is_key(init_state, S) of - true -> - %% Avoid infinite loop in initial state - %% with state entry events - NewS = maps:remove(init_state, S), - loop_event_enter( - Parent, NewDebug, NewS, TimerRefs, TimerTypes, - Events, Event, NextState, NewData, - Hibernate, TimeoutsR, Postpone, NextEventsR); - false -> - loop_event_result( - Parent, NewDebug, S, TimerRefs, TimerTypes, - Events, Event, NextState, NewData, - Hibernate, TimeoutsR, Postpone, NextEventsR) - end; true -> loop_event_result( - Parent, NewDebug, S, TimerRefs, TimerTypes, + Parent, NewDebug, S, Events, Event, NextState, NewData, Hibernate, TimeoutsR, Postpone, NextEventsR) end; {Class,Reason,Stacktrace} -> terminate( - Class, Reason, Stacktrace, - Debug, S#{data := NewData}, [Event|Events]) + Class, Reason, Stacktrace, Debug, S, + [Event|Events]) end. loop_event_enter( - Parent, Debug, #{state := State} = S, TimerRefs, TimerTypes, + Parent, Debug, #{state := State} = S, Events, Event, NextState, NewData, Hibernate, TimeoutsR, Postpone, NextEventsR) -> case call_state_function(S, enter, State, NextState, NewData) of {ok,Result,NewS} -> - {NewerData,_,Actions} = - parse_event_result( - false, Debug, NewS, Result, - Events, Event, NextState, NewData), - loop_event_enter_actions( - Parent, Debug, NewS, TimerRefs, TimerTypes, - Events, Event, NextState, NewerData, - Hibernate, TimeoutsR, Postpone, NextEventsR, Actions); + case parse_event_result( + false, Debug, NewS, + Events, Event, NextState, NewData, Result) of + {_,NewerData,Actions,EnterCall} -> + loop_event_enter_actions( + Parent, Debug, NewS, + Events, Event, NextState, NewerData, + Hibernate, TimeoutsR, Postpone, NextEventsR, + Actions, EnterCall) + end; {Class,Reason,Stacktrace} -> terminate( - Class, Reason, Stacktrace, - Debug, S#{state := NextState, data := NewData}, + Class, Reason, Stacktrace, Debug, + S#{ + state := NextState, + data := NewData, + hibernate := Hibernate}, [Event|Events]) end. loop_event_enter_actions( - Parent, Debug, S, TimerRefs, TimerTypes, + Parent, Debug, #{state_enter := StateEnter} = S, Events, Event, NextState, NewData, - Hibernate, TimeoutsR, Postpone, NextEventsR, Actions) -> + Hibernate, TimeoutsR, Postpone, NextEventsR, + Actions, EnterCall) -> case parse_enter_actions( - Debug, S, NextState, Actions, - Hibernate, TimeoutsR) + Debug, S, NextState, Actions, Hibernate, TimeoutsR) of {ok,NewDebug,NewHibernate,NewTimeoutsR,_,_} -> - loop_event_result( - Parent, NewDebug, S, TimerRefs, TimerTypes, - Events, Event, NextState, NewData, - NewHibernate, NewTimeoutsR, Postpone, NextEventsR); + if + StateEnter, EnterCall -> + loop_event_enter( + Parent, NewDebug, S, + Events, Event, NextState, NewData, + NewHibernate, NewTimeoutsR, Postpone, NextEventsR); + true -> + loop_event_result( + Parent, NewDebug, S, + Events, Event, NextState, NewData, + NewHibernate, NewTimeoutsR, Postpone, NextEventsR) + end; {Class,Reason,Stacktrace} -> terminate( - Class, Reason, Stacktrace, - Debug, S#{state := NextState, data := NewData}, + Class, Reason, Stacktrace, Debug, + S#{ + state := NextState, + data := NewData, + hibernate := Hibernate}, [Event|Events]) end. loop_event_result( - Parent, Debug, - #{state := State, postponed := P_0} = S, TimerRefs_0, TimerTypes_0, - Events, Event, NextState, NewData, + Parent, Debug_0, + #{state := State, postponed := P_0, + timer_refs := TimerRefs_0, timer_types := TimerTypes_0, + cancel_timers := CancelTimers_0} = S_0, + Events_0, Event_0, NextState, NewData, Hibernate, TimeoutsR, Postpone, NextEventsR) -> %% %% All options have been collected and next_events are buffered. %% Do the actual state transition. %% - {NewDebug,P_1} = % Move current event to postponed if Postpone + {Debug_1,P_1} = % Move current event to postponed if Postpone case Postpone of true -> - {sys_debug(Debug, S, State, {postpone,Event,State}), - [Event|P_0]}; + {sys_debug(Debug_0, S_0, State, {postpone,Event_0,State}), + [Event_0|P_0]}; false -> - {sys_debug(Debug, S, State, {consume,Event,State}), + {sys_debug(Debug_0, S_0, State, {consume,Event_0,State}), P_0} end, - {Events_1,NewP,{TimerRefs_1,TimerTypes_1}} = + {Events_1,P_2,{TimerTypes_1,CancelTimers_1}} = %% Move all postponed events to queue and cancel the %% state timeout if the state changes if NextState =:= State -> - {Events,P_1,{TimerRefs_0,TimerTypes_0}}; + {Events_0,P_1,{TimerTypes_0,CancelTimers_0}}; true -> - {lists:reverse(P_1, Events),[], + {lists:reverse(P_1, Events_0), + [], cancel_timer_by_type( - state_timeout, TimerRefs_0, TimerTypes_0)} + state_timeout, TimerTypes_0, CancelTimers_0)} + %% The state timer is removed from TimerTypes_1 + %% but remains in TimerRefs_0 until we get + %% the cancel_timer msg end, - {TimerRefs_2,TimerTypes_2,TimeoutEvents} = - %% Stop and start timers non-event timers - parse_timers(TimerRefs_1, TimerTypes_1, TimeoutsR), + {TimerRefs_2,TimerTypes_2,CancelTimers_2,TimeoutEvents} = + %% Stop and start non-event timers + parse_timers(TimerRefs_0, TimerTypes_1, CancelTimers_1, TimeoutsR), %% Place next events last in reversed queue Events_2R = lists:reverse(Events_1, NextEventsR), %% Enqueue immediate timeout events and start event timer - {NewTimerRefs,NewTimerTypes,Events_3R} = - process_timeout_events( - TimerRefs_2, TimerTypes_2, TimeoutEvents, Events_2R), - NewEvents = lists:reverse(Events_3R), - loop_events( - Parent, NewDebug, S, NewTimerRefs, NewTimerTypes, - NewEvents, Hibernate, NextState, NewData, NewP). - -%% Loop until out of enqueued events -%% -loop_events( - Parent, Debug, S, TimerRefs, TimerTypes, - [] = _Events, Hibernate, State, Data, P) -> - %% Update S and loop back to loop/3 to receive a new event - NewS = - S#{ - state := State, - data := Data, - postponed := P, - hibernate => Hibernate, - timer_refs => TimerRefs, - timer_types => TimerTypes}, - loop(Parent, Debug, NewS); -loop_events( - Parent, Debug, S, TimerRefs, TimerTypes, - [Event|Events], Hibernate, State, Data, P) -> - %% Update S and continue with enqueued events - NewS = - S#{ - state := State, - data := Data, - postponed := P}, - loop_event( - Parent, Debug, NewS, TimerRefs, TimerTypes, Events, Event, Hibernate). - + Events_3R = prepend_timeout_events(TimeoutEvents, Events_2R), + S_1 = + S_0#{ + state := NextState, + data := NewData, + postponed := P_2, + timer_refs := TimerRefs_2, + timer_types := TimerTypes_2, + cancel_timers := CancelTimers_2, + hibernate := Hibernate}, + case lists:reverse(Events_3R) of + [] -> + %% Get a new event + loop(Parent, Debug_1, S_1); + [Event|Events] -> + %% Loop until out of enqueued events + loop_event(Parent, Debug_1, S_1, Events, Event, Hibernate) + end. %%--------------------------------------------------------------------------- @@ -1069,19 +1163,6 @@ call_callback_mode(#{module := Module} = S) -> catch CallbackMode -> callback_mode_result(S, CallbackMode); - error:undef -> - %% Process undef to check for the simple mistake - %% of calling a nonexistent state function - %% to make the undef more precise - case erlang:get_stacktrace() of - [{Module,callback_mode,[]=Args,_} - |Stacktrace] -> - {error, - {undef_callback,{Module,callback_mode,Args}}, - Stacktrace}; - Stacktrace -> - {error,undef,Stacktrace} - end; Class:Reason -> {Class,Reason,erlang:get_stacktrace()} end. @@ -1126,8 +1207,7 @@ parse_callback_mode(_, _CBMode, StateEnter) -> call_state_function( - #{callback_mode := undefined} = S, - Type, Content, State, Data) -> + #{callback_mode := undefined} = S, Type, Content, State, Data) -> case call_callback_mode(S) of {ok,NewS} -> call_state_function(NewS, Type, Content, State, Data); @@ -1135,13 +1215,12 @@ call_state_function( Error end; call_state_function( - #{callback_mode := CallbackMode, - module := Module} = S, + #{callback_mode := CallbackMode, module := Module} = S, Type, Content, State, Data) -> try case CallbackMode of state_functions -> - erlang:apply(Module, State, [Type,Content,Data]); + Module:State(Type, Content, Data); handle_event_function -> Module:handle_event(Type, Content, State, Data) end @@ -1151,41 +1230,6 @@ call_state_function( catch Result -> {ok,Result,S}; - error:badarg -> - case erlang:get_stacktrace() of - [{erlang,apply, - [Module,State,[Type,Content,Data]=Args], - _} - |Stacktrace] - when CallbackMode =:= state_functions -> - %% We get here e.g if apply fails - %% due to State not being an atom - {error, - {undef_state_function,{Module,State,Args}}, - Stacktrace}; - Stacktrace -> - {error,badarg,Stacktrace} - end; - error:undef -> - %% Process undef to check for the simple mistake - %% of calling a nonexistent state function - %% to make the undef more precise - case erlang:get_stacktrace() of - [{Module,State,[Type,Content,Data]=Args,_} - |Stacktrace] - when CallbackMode =:= state_functions -> - {error, - {undef_state_function,{Module,State,Args}}, - Stacktrace}; - [{Module,handle_event,[Type,Content,State,Data]=Args,_} - |Stacktrace] - when CallbackMode =:= handle_event_function -> - {error, - {undef_state_function,{Module,handle_event,Args}}, - Stacktrace}; - Stacktrace -> - {error,undef,Stacktrace} - end; Class:Reason -> {Class,Reason,erlang:get_stacktrace()} end. @@ -1193,65 +1237,83 @@ call_state_function( %% Interpret all callback return variants parse_event_result( - AllowStateChange, Debug, S, Result, Events, Event, State, Data) -> + AllowStateChange, Debug, S, + Events, Event, State, Data, Result) -> case Result of stop -> terminate( - exit, normal, ?STACKTRACE(), Debug, S, [Event|Events]); + exit, normal, ?STACKTRACE(), Debug, + S#{state := State, data := Data}, + [Event|Events]); {stop,Reason} -> terminate( - exit, Reason, ?STACKTRACE(), Debug, S, [Event|Events]); + exit, Reason, ?STACKTRACE(), Debug, + S#{state := State, data := Data}, + [Event|Events]); {stop,Reason,NewData} -> terminate( - exit, Reason, ?STACKTRACE(), - Debug, S#{data := NewData}, [Event|Events]); + exit, Reason, ?STACKTRACE(), Debug, + S#{state := State, data := NewData}, + [Event|Events]); + %% {stop_and_reply,Reason,Replies} -> - Q = [Event|Events], reply_then_terminate( - exit, Reason, ?STACKTRACE(), - Debug, S, Q, Replies); + exit, Reason, ?STACKTRACE(), Debug, + S#{state := State, data := Data}, + [Event|Events], Replies); {stop_and_reply,Reason,Replies,NewData} -> - Q = [Event|Events], reply_then_terminate( - exit, Reason, ?STACKTRACE(), - Debug, S#{data := NewData}, Q, Replies); + exit, Reason, ?STACKTRACE(), Debug, + S#{state := State, data := NewData}, + [Event|Events], Replies); + %% {next_state,State,NewData} -> - {NewData,State,[]}; + {State,NewData,[],false}; {next_state,NextState,NewData} when AllowStateChange -> - {NewData,NextState,[]}; + {NextState,NewData,[],true}; {next_state,State,NewData,Actions} -> - {NewData,State,Actions}; + {State,NewData,Actions,false}; {next_state,NextState,NewData,Actions} when AllowStateChange -> - {NewData,NextState,Actions}; + {NextState,NewData,Actions,true}; + %% {keep_state,NewData} -> - {NewData,State,[]}; + {State,NewData,[],false}; {keep_state,NewData,Actions} -> - {NewData,State,Actions}; + {State,NewData,Actions,false}; keep_state_and_data -> - {Data,State,[]}; + {State,Data,[],false}; {keep_state_and_data,Actions} -> - {Data,State,Actions}; + {State,Data,Actions,false}; + %% + {repeat_state,NewData} -> + {State,NewData,[],true}; + {repeat_state,NewData,Actions} -> + {State,NewData,Actions,true}; + repeat_state_and_data -> + {State,Data,[],true}; + {repeat_state_and_data,Actions} -> + {State,Data,Actions,true}; + %% _ -> terminate( error, {bad_return_from_state_function,Result}, - ?STACKTRACE(), - Debug, S, [Event|Events]) + ?STACKTRACE(), Debug, + S#{state := State, data := Data}, + [Event|Events]) end. -parse_enter_actions( - Debug, S, State, Actions, - Hibernate, TimeoutsR) -> +parse_enter_actions(Debug, S, State, Actions, Hibernate, TimeoutsR) -> Postpone = forbidden, NextEventsR = forbidden, parse_actions( Debug, S, State, listify(Actions), Hibernate, TimeoutsR, Postpone, NextEventsR). - + parse_actions(Debug, S, State, Actions) -> Hibernate = false, - TimeoutsR = [], + TimeoutsR = [{timeout,infinity,infinity}], %% Will cancel event timer Postpone = false, NextEventsR = [], parse_actions( @@ -1279,64 +1341,29 @@ parse_actions( {bad_action_from_state_function,Action}, ?STACKTRACE()} end; + %% %% Actions that set options {hibernate,NewHibernate} when is_boolean(NewHibernate) -> parse_actions( Debug, S, State, Actions, NewHibernate, TimeoutsR, Postpone, NextEventsR); - {hibernate,_} -> - {error, - {bad_action_from_state_function,Action}, - ?STACKTRACE()}; hibernate -> + NewHibernate = true, parse_actions( Debug, S, State, Actions, - true, TimeoutsR, Postpone, NextEventsR); - {state_timeout,Time,_} = StateTimeout - when is_integer(Time), Time >= 0; - Time =:= infinity -> - parse_actions( - Debug, S, State, Actions, - Hibernate, [StateTimeout|TimeoutsR], Postpone, NextEventsR); - {state_timeout,_,_} -> - {error, - {bad_action_from_state_function,Action}, - ?STACKTRACE()}; - {timeout,infinity,_} -> - %% Ignore - timeout will never happen and already cancelled - parse_actions( - Debug, S, State, Actions, - Hibernate, TimeoutsR, Postpone, NextEventsR); - {timeout,Time,_} = Timeout when is_integer(Time), Time >= 0 -> - parse_actions( - Debug, S, State, Actions, - Hibernate, [Timeout|TimeoutsR], Postpone, NextEventsR); - {timeout,_,_} -> - {error, - {bad_action_from_state_function,Action}, - ?STACKTRACE()}; - infinity -> % Ignore - timeout will never happen - parse_actions( - Debug, S, State, Actions, - Hibernate, TimeoutsR, Postpone, NextEventsR); - Time when is_integer(Time), Time >= 0 -> - Timeout = {timeout,Time,Time}, - parse_actions( - Debug, S, State, Actions, - Hibernate, [Timeout|TimeoutsR], Postpone, NextEventsR); + NewHibernate, TimeoutsR, Postpone, NextEventsR); + %% {postpone,NewPostpone} when is_boolean(NewPostpone), Postpone =/= forbidden -> parse_actions( Debug, S, State, Actions, Hibernate, TimeoutsR, NewPostpone, NextEventsR); - {postpone,_} -> - {error, - {bad_action_from_state_function,Action}, - ?STACKTRACE()}; postpone when Postpone =/= forbidden -> + NewPostpone = true, parse_actions( Debug, S, State, Actions, - Hibernate, TimeoutsR, true, NextEventsR); + Hibernate, TimeoutsR, NewPostpone, NextEventsR); + %% {next_event,Type,Content} -> case event_type(Type) of true when NextEventsR =/= forbidden -> @@ -1351,96 +1378,150 @@ parse_actions( {bad_action_from_state_function,Action}, ?STACKTRACE()} end; - _ -> + %% + {state_timeout,_,_} = Timeout -> + parse_actions_timeout( + Debug, S, State, Actions, + Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout); + {timeout,_,_} = Timeout -> + parse_actions_timeout( + Debug, S, State, Actions, + Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout); + Time -> + parse_actions_timeout( + Debug, S, State, Actions, + Hibernate, TimeoutsR, Postpone, NextEventsR, Time) + end. + +parse_actions_timeout( + Debug, S, State, Actions, + Hibernate, TimeoutsR, Postpone, NextEventsR, Timeout) -> + Time = + case Timeout of + {_,T,_} -> T; + T -> T + end, + case validate_time(Time) of + true -> + parse_actions( + Debug, S, State, Actions, + Hibernate, [Timeout|TimeoutsR], + Postpone, NextEventsR); + false -> {error, - {bad_action_from_state_function,Action}, + {bad_action_from_state_function,Timeout}, ?STACKTRACE()} end. +validate_time(Time) when is_integer(Time), Time >= 0 -> true; +validate_time(infinity) -> true; +validate_time(_) -> false. %% Stop and start timers as well as create timeout zero events %% and pending event timer %% %% Stop and start timers non-event timers -parse_timers(TimerRefs, TimerTypes, TimeoutsR) -> - parse_timers(TimerRefs, TimerTypes, TimeoutsR, #{}, []). +parse_timers(TimerRefs, TimerTypes, CancelTimers, TimeoutsR) -> + parse_timers(TimerRefs, TimerTypes, CancelTimers, TimeoutsR, #{}, []). %% -parse_timers(TimerRefs, TimerTypes, [], _Seen, TimeoutEvents) -> - {TimerRefs,TimerTypes,TimeoutEvents}; parse_timers( - TimerRefs, TimerTypes, [Timeout|TimeoutsR], Seen, TimeoutEvents) -> - {TimerType,Time,TimerMsg} = Timeout, + TimerRefs, TimerTypes, CancelTimers, [], _Seen, TimeoutEvents) -> + {TimerRefs,TimerTypes,CancelTimers,TimeoutEvents}; +parse_timers( + TimerRefs, TimerTypes, CancelTimers, [Timeout|TimeoutsR], + Seen, TimeoutEvents) -> + case Timeout of + {TimerType,Time,TimerMsg} -> + parse_timers( + TimerRefs, TimerTypes, CancelTimers, TimeoutsR, + Seen, TimeoutEvents, + TimerType, Time, TimerMsg); + Time -> + parse_timers( + TimerRefs, TimerTypes, CancelTimers, TimeoutsR, + Seen, TimeoutEvents, + timeout, Time, Time) + end. + +parse_timers( + TimerRefs, TimerTypes, CancelTimers, TimeoutsR, + Seen, TimeoutEvents, + TimerType, Time, TimerMsg) -> case Seen of #{TimerType := _} -> %% Type seen before - ignore parse_timers( - TimerRefs, TimerTypes, TimeoutsR, Seen, TimeoutEvents); + TimerRefs, TimerTypes, CancelTimers, TimeoutsR, + Seen, TimeoutEvents); #{} -> %% Unseen type - handle NewSeen = Seen#{TimerType => true}, - %% Cancel any running timer - {NewTimerRefs,NewTimerTypes} = - cancel_timer_by_type(TimerType, TimerRefs, TimerTypes), - if - Time =:= infinity -> - %% Ignore - timer will never fire + case Time of + infinity -> + %% Cancel any running timer + {NewTimerTypes,NewCancelTimers} = + cancel_timer_by_type( + TimerType, TimerTypes, CancelTimers), parse_timers( - NewTimerRefs, NewTimerTypes, TimeoutsR, + TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR, NewSeen, TimeoutEvents); - TimerType =:= timeout -> - %% Handle event timer later - parse_timers( - NewTimerRefs, NewTimerTypes, TimeoutsR, - NewSeen, [Timeout|TimeoutEvents]); - Time =:= 0 -> + 0 -> + %% Cancel any running timer + {NewTimerTypes,NewCancelTimers} = + cancel_timer_by_type( + TimerType, TimerTypes, CancelTimers), %% Handle zero time timeouts later TimeoutEvent = {TimerType,TimerMsg}, parse_timers( - NewTimerRefs, NewTimerTypes, TimeoutsR, + TimerRefs, NewTimerTypes, NewCancelTimers, TimeoutsR, NewSeen, [TimeoutEvent|TimeoutEvents]); - true -> - %% Start a new timer - TimerRef = erlang:start_timer(Time, self(), TimerMsg), - parse_timers( - NewTimerRefs#{TimerRef => TimerType}, - NewTimerTypes#{TimerType => TimerRef}, - TimeoutsR, NewSeen, TimeoutEvents) + _ -> + %% (Re)start the timer + TimerRef = + erlang:start_timer(Time, self(), TimerMsg), + case TimerTypes of + #{TimerType := OldTimerRef} -> + %% Cancel the running timer + cancel_timer(OldTimerRef), + NewCancelTimers = CancelTimers + 1, + %% Insert the new timer into + %% both TimerRefs and TimerTypes + parse_timers( + TimerRefs#{TimerRef => TimerType}, + TimerTypes#{TimerType => TimerRef}, + NewCancelTimers, TimeoutsR, + NewSeen, TimeoutEvents); + #{} -> + parse_timers( + TimerRefs#{TimerRef => TimerType}, + TimerTypes#{TimerType => TimerRef}, + CancelTimers, TimeoutsR, + NewSeen, TimeoutEvents) + end end end. -%% Enqueue immediate timeout events and start event timer -process_timeout_events(TimerRefs, TimerTypes, [], EventsR) -> - {TimerRefs, TimerTypes, EventsR}; -process_timeout_events( - TimerRefs, TimerTypes, - [{timeout,0,TimerMsg}|TimeoutEvents], []) -> - %% No enqueued events - insert a timeout zero event - TimeoutEvent = {timeout,TimerMsg}, - process_timeout_events( - TimerRefs, TimerTypes, - TimeoutEvents, [TimeoutEvent]); -process_timeout_events( - TimerRefs, TimerTypes, - [{timeout,Time,TimerMsg}], []) -> - %% No enqueued events - start event timer - TimerRef = erlang:start_timer(Time, self(), TimerMsg), - process_timeout_events( - TimerRefs#{TimerRef => timeout}, TimerTypes#{timeout => TimerRef}, - [], []); -process_timeout_events( - TimerRefs, TimerTypes, - [{timeout,_Time,_TimerMsg}|TimeoutEvents], EventsR) -> - %% There will be some other event so optimize by not starting - %% an event timer to just have to cancel it again - process_timeout_events( - TimerRefs, TimerTypes, - TimeoutEvents, EventsR); -process_timeout_events( - TimerRefs, TimerTypes, - [{_TimeoutType,_TimeoutMsg} = TimeoutEvent|TimeoutEvents], EventsR) -> - process_timeout_events( - TimerRefs, TimerTypes, - TimeoutEvents, [TimeoutEvent|EventsR]). +%% Enqueue immediate timeout events (timeout 0 events) +%% +%% Event timer timeout 0 events gets special treatment since +%% an event timer is cancelled by any received event, +%% so if there are enqueued events before the event timer +%% timeout 0 event - the event timer is cancelled hence no event. +%% +%% Other (state_timeout) timeout 0 events that are after +%% the event timer timeout 0 events are considered to +%% belong to timers that were started after the event timer +%% timeout 0 event fired, so they do not cancel the event timer. +%% +prepend_timeout_events([], EventsR) -> + EventsR; +prepend_timeout_events([{timeout,_} = TimeoutEvent|TimeoutEvents], []) -> + prepend_timeout_events(TimeoutEvents, [TimeoutEvent]); +prepend_timeout_events([{timeout,_}|TimeoutEvents], EventsR) -> + prepend_timeout_events(TimeoutEvents, EventsR); +prepend_timeout_events([TimeoutEvent|TimeoutEvents], EventsR) -> + %% Just prepend all others + prepend_timeout_events(TimeoutEvents, [TimeoutEvent|EventsR]). @@ -1448,18 +1529,11 @@ process_timeout_events( %% Server helpers reply_then_terminate( - Class, Reason, Stacktrace, - Debug, #{state := State} = S, Q, Replies) -> - if - is_list(Replies) -> - do_reply_then_terminate( - Class, Reason, Stacktrace, - Debug, S, Q, Replies, State); - true -> - do_reply_then_terminate( - Class, Reason, Stacktrace, - Debug, S, Q, [Replies], State) - end. + Class, Reason, Stacktrace, Debug, + #{state := State} = S, Q, Replies) -> + do_reply_then_terminate( + Class, Reason, Stacktrace, Debug, + S, Q, listify(Replies), State). %% do_reply_then_terminate( Class, Reason, Stacktrace, Debug, S, Q, [], _State) -> @@ -1485,21 +1559,25 @@ do_reply(Debug, S, State, From, Reply) -> terminate( - Class, Reason, Stacktrace, - Debug, + Class, Reason, Stacktrace, Debug, #{module := Module, state := State, data := Data, postponed := P} = S, Q) -> - try Module:terminate(Reason, State, Data) of - _ -> ok - catch - _ -> ok; - C:R -> - ST = erlang:get_stacktrace(), - error_info( - C, R, ST, S, Q, P, - format_status(terminate, get(), S)), - sys:print_log(Debug), - erlang:raise(C, R, ST) + case erlang:function_exported(Module, terminate, 3) of + true -> + try Module:terminate(Reason, State, Data) of + _ -> ok + catch + _ -> ok; + C:R -> + ST = erlang:get_stacktrace(), + error_info( + C, R, ST, S, Q, P, + format_status(terminate, get(), S)), + sys:print_log(Debug), + erlang:raise(C, R, ST) + end; + false -> + ok end, _ = case Reason of @@ -1637,28 +1715,21 @@ listify(Item) -> [Item]. %% Cancel timer if running, otherwise no op -cancel_timer_by_type(TimerType, TimerRefs, TimerTypes) -> +%% +%% This is an asynchronous cancel so the timer is not really cancelled +%% until we get a cancel_timer msg i.e {cancel_timer,TimerRef,_}. +%% In the mean time we might get a timeout message. +%% +%% Remove the timer from TimerTypes. +%% When we get the cancel_timer msg we remove it from TimerRefs. +cancel_timer_by_type(TimerType, TimerTypes, CancelTimers) -> case TimerTypes of #{TimerType := TimerRef} -> cancel_timer(TimerRef), - {maps:remove(TimerRef, TimerRefs), - maps:remove(TimerType, TimerTypes)}; + {maps:remove(TimerType, TimerTypes),CancelTimers + 1}; #{} -> - {TimerRefs,TimerTypes} + {TimerTypes,CancelTimers} end. -%%cancel_timer(undefined) -> -%% ok; -cancel_timer(TRef) -> - case erlang:cancel_timer(TRef) of - false -> - %% We have to assume that TRef is the ref of a running timer - %% and if so the timer has expired - %% hence we must wait for the timeout message - receive - {timeout,TRef,_} -> - ok - end; - _TimeLeft -> - ok - end. +cancel_timer(TimerRef) -> + ok = erlang:cancel_timer(TimerRef, [{async,true}]). diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl index ad98bc0420..a91143a764 100644 --- a/lib/stdlib/src/io_lib.erl +++ b/lib/stdlib/src/io_lib.erl @@ -28,7 +28,7 @@ %% Most of the code here is derived from the original prolog versions and %% from similar code written by Joe Armstrong and myself. %% -%% This module has been split into seperate modules: +%% This module has been split into separate modules: %% io_lib - basic write and utilities %% io_lib_format - formatted output %% io_lib_fread - formatted input diff --git a/lib/stdlib/src/io_lib_format.erl b/lib/stdlib/src/io_lib_format.erl index c7b75961cb..3113767614 100644 --- a/lib/stdlib/src/io_lib_format.erl +++ b/lib/stdlib/src/io_lib_format.erl @@ -265,7 +265,10 @@ control($W, [A,Depth], F, Adj, P, Pad, _Enc, _Str, _I) when is_integer(Depth) -> term(io_lib:write(A, Depth), F, Adj, P, Pad); control($P, [A,Depth], F, Adj, P, Pad, Enc, Str, I) when is_integer(Depth) -> print(A, Depth, F, Adj, P, Pad, Enc, Str, I); -control($s, [A], F, Adj, P, Pad, _Enc, _Str, _I) when is_atom(A) -> +control($s, [A], F, Adj, P, Pad, latin1, _Str, _I) when is_atom(A) -> + L = iolist_to_chars(atom_to_list(A)), + string(L, F, Adj, P, Pad); +control($s, [A], F, Adj, P, Pad, unicode, _Str, _I) when is_atom(A) -> string(atom_to_list(A), F, Adj, P, Pad); control($s, [L0], F, Adj, P, Pad, latin1, _Str, _I) -> L = iolist_to_chars(L0), diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl index 94376408d1..aabccfc5d9 100644 --- a/lib/stdlib/src/io_lib_pretty.erl +++ b/lib/stdlib/src/io_lib_pretty.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2016. All Rights Reserved. +%% Copyright Ericsson AB 1996-2017. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -139,6 +139,10 @@ max_cs(M, _Len) -> M. -define(ATM(T), is_list(element(1, T))). +-define(ATM_PAIR(Pair), + ?ATM(element(2, element(1, Pair))) % Key + andalso + ?ATM(element(3, element(1, Pair)))). % Value -define(ATM_FLD(Field), ?ATM(element(4, element(1, Field)))). pp({_S, Len} = If, Col, Ll, M, _TInd, _Ind, LD, W) @@ -151,9 +155,8 @@ pp({{tuple,true,L}, _Len}, Col, Ll, M, TInd, Ind, LD, W) -> pp({{tuple,false,L}, _Len}, Col, Ll, M, TInd, Ind, LD, W) -> [${, pp_list(L, Col + 1, Ll, M, TInd, indent(1, Ind), LD, $,, W + 1), $}]; pp({{map,Pairs},_Len}, Col, Ll, M, TInd, Ind, LD, W) -> - [$#,${, pp_list(Pairs, Col + 2, Ll, M, TInd, indent(2, Ind), LD, $,, W + 1), $}]; -pp({{map_pair,K,V},_Len}, Col, Ll, M, TInd, Ind, LD, W) -> - [pp(K, Col, Ll, M, TInd, Ind, LD, W), " => ", pp(V, Col, Ll, M, TInd, Ind, LD, W)]; + [$#, ${, pp_map(Pairs, Col + 2, Ll, M, TInd, indent(2, Ind), LD, W + 1), + $}]; pp({{record,[{Name,NLen} | L]}, _Len}, Col, Ll, M, TInd, Ind, LD, W) -> [Name, ${, pp_record(L, NLen, Col, Ll, M, TInd, Ind, LD, W + NLen+1), $}]; pp({{bin,S}, _Len}, Col, Ll, M, _TInd, Ind, LD, W) -> @@ -178,6 +181,46 @@ pp_tag_tuple([{Tag,Tlen} | L], Col, Ll, M, TInd, Ind, LD, W) -> [Tag, S | pp_list(L, Tcol, Ll, M, TInd, Indent, LD, S, W+Tlen+1)] end. +pp_map([], _Col, _Ll, _M, _TInd, _Ind, _LD, _W) -> + ""; +pp_map({dots, _}, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) -> + "..."; +pp_map([P | Ps], Col, Ll, M, TInd, Ind, LD, W) -> + {PS, PW} = pp_pair(P, Col, Ll, M, TInd, Ind, last_depth(Ps, LD), W), + [PS | pp_pairs_tail(Ps, Col, Col + PW, Ll, M, TInd, Ind, LD, PW)]. + +pp_pairs_tail([], _Col0, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) -> + ""; +pp_pairs_tail({dots, _}, _Col0, _Col, _M, _Ll, _TInd, _Ind, _LD, _W) -> + ",..."; +pp_pairs_tail([{_, Len}=P | Ps], Col0, Col, Ll, M, TInd, Ind, LD, W) -> + LD1 = last_depth(Ps, LD), + ELen = 1 + Len, + if + LD1 =:= 0, ELen + 1 < Ll - Col, W + ELen + 1 =< M, ?ATM_PAIR(P); + LD1 > 0, ELen < Ll - Col - LD1, W + ELen + LD1 =< M, ?ATM_PAIR(P) -> + [$,, write_pair(P) | + pp_pairs_tail(Ps, Col0, Col+ELen, Ll, M, TInd, Ind, LD, W+ELen)]; + true -> + {PS, PW} = pp_pair(P, Col0, Ll, M, TInd, Ind, LD1, 0), + [$,, $\n, Ind, PS | + pp_pairs_tail(Ps, Col0, Col0 + PW, Ll, M, TInd, Ind, LD, PW)] + end. + +pp_pair({_, Len}=Pair, Col, Ll, M, _TInd, _Ind, LD, W) + when Len < Ll - Col - LD, Len + W + LD =< M -> + {write_pair(Pair), if + ?ATM_PAIR(Pair) -> + Len; + true -> + Ll % force nl + end}; +pp_pair({{map_pair, K, V}, _Len}, Col0, Ll, M, TInd, Ind0, LD, W) -> + I = map_value_indent(TInd), + Ind = indent(I, Ind0), + {[pp(K, Col0, Ll, M, TInd, Ind0, LD, W), " =>\n", + Ind | pp(V, Col0 + I, Ll, M, TInd, Ind, LD, 0)], Ll}. % force nl + pp_record([], _Nlen, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) -> ""; pp_record({dots, _}, _Nlen, _Col, _Ll, _M, _TInd, _Ind, _LD, _W) -> @@ -216,7 +259,11 @@ pp_field({_, Len}=Fl, Col, Ll, M, _TInd, _Ind, LD, W) end}; pp_field({{field, Name, NameL, F}, _Len}, Col0, Ll, M, TInd, Ind0, LD, W0) -> {Col, Ind, S, W} = rec_indent(NameL, TInd, Col0, Ind0, W0 + NameL), - {[Name, " = ", S | pp(F, Col, Ll, M, TInd, Ind, LD, W)], Ll}. % force nl + Sep = case S of + [$\n | _] -> " ="; + _ -> " = " + end, + {[Name, Sep, S | pp(F, Col, Ll, M, TInd, Ind, LD, W)], Ll}. % force nl rec_indent(RInd, TInd, Col0, Ind0, W0) -> %% this uses TInd @@ -305,8 +352,8 @@ write({{list, L}, _}) -> [$[, write_list(L, $|), $]]; write({{map, Pairs}, _}) -> [$#,${, write_list(Pairs, $,), $}]; -write({{map_pair, K, V}, _}) -> - [write(K)," => ",write(V)]; +write({{map_pair, _K, _V}, _}=Pair) -> + write_pair(Pair); write({{record, [{Name,_} | L]}, _}) -> [Name, ${, write_fields(L), $}]; write({{bin, S}, _}) -> @@ -314,6 +361,9 @@ write({{bin, S}, _}) -> write({S, _}) -> S. +write_pair({{map_pair, K, V}, _}) -> + [write(K), " => ", write(V)]. + write_fields([]) -> ""; write_fields({dots, _}) -> @@ -347,7 +397,7 @@ write_tail(E, S) -> %% The depth (D) is used for extracting and counting the characters to %% print. The structure is kept so that the returned intermediate -%% format can be formatted. The separators (list, tuple, record) are +%% format can be formatted. The separators (list, tuple, record, map) are %% counted but need to be added later. %% D =/= 0 @@ -423,21 +473,22 @@ print_length(Term, _D, _RF, _Enc, _Str) -> print_length_map(_Map, 1, _RF, _Enc, _Str) -> {"#{...}", 6}; print_length_map(Map, D, RF, Enc, Str) when is_map(Map) -> - Pairs = print_length_map_pairs(maps:to_list(Map), D, RF, Enc, Str), + Pairs = print_length_map_pairs(erts_internal:maps_to_list(Map, D), D, RF, Enc, Str), {{map, Pairs}, list_length(Pairs, 3)}. print_length_map_pairs([], _D, _RF, _Enc, _Str) -> []; print_length_map_pairs(_Pairs, 1, _RF, _Enc, _Str) -> {dots, 3}; -print_length_map_pairs([{K,V}|Pairs], D, RF, Enc, Str) -> - [print_length_map_pair(K,V,D-1,RF,Enc,Str) | - print_length_map_pairs(Pairs,D-1,RF,Enc,Str)]. +print_length_map_pairs([{K, V} | Pairs], D, RF, Enc, Str) -> + [print_length_map_pair(K, V, D - 1, RF, Enc, Str) | + print_length_map_pairs(Pairs, D - 1, RF, Enc, Str)]. print_length_map_pair(K, V, D, RF, Enc, Str) -> {KS, KL} = print_length(K, D, RF, Enc, Str), {VS, VL} = print_length(V, D, RF, Enc, Str), - {{map_pair, {KS,KL}, {VS,VL}}, KL + VL}. + KL1 = KL + 4, + {{map_pair, {KS, KL1}, {VS, VL}}, KL1 + VL}. print_length_tuple(_Tuple, 1, _RF, _Enc, _Str) -> {"{...}", 5}; @@ -630,6 +681,8 @@ cind({{tuple,true,L}, _Len}, Col, Ll, M, Ind, LD, W) -> cind_tag_tuple(L, Col, Ll, M, Ind, LD, W + 1); cind({{tuple,false,L}, _Len}, Col, Ll, M, Ind, LD, W) -> cind_list(L, Col + 1, Ll, M, Ind, LD, W + 1); +cind({{map,Pairs},_Len}, Col, Ll, M, Ind, LD, W) -> + cind_map(Pairs, Col + 2, Ll, M, Ind, LD, W + 2); cind({{record,[{_Name,NLen} | L]}, _Len}, Col, Ll, M, Ind, LD, W) -> cind_record(L, NLen, Col, Ll, M, Ind, LD, W + NLen + 1); cind({{bin,_S}, _Len}, _Col, _Ll, _M, Ind, _LD, _W) -> @@ -655,6 +708,48 @@ cind_tag_tuple([{_Tag,Tlen} | L], Col, Ll, M, Ind, LD, W) -> throw(no_good) end. +cind_map([P | Ps], Col, Ll, M, Ind, LD, W) -> + PW = cind_pair(P, Col, Ll, M, Ind, last_depth(Ps, LD), W), + cind_pairs_tail(Ps, Col, Col + PW, Ll, M, Ind, LD, W + PW); +cind_map(_, _Col, _Ll, _M, Ind, _LD, _W) -> + Ind. + +cind_pairs_tail([{_, Len}=P | Ps], Col0, Col, Ll, M, Ind, LD, W) -> + LD1 = last_depth(Ps, LD), + ELen = 1 + Len, + if + LD1 =:= 0, ELen + 1 < Ll - Col, W + ELen + 1 =< M, ?ATM_PAIR(P); + LD1 > 0, ELen < Ll - Col - LD1, W + ELen + LD1 =< M, ?ATM_PAIR(P) -> + cind_pairs_tail(Ps, Col0, Col + ELen, Ll, M, Ind, LD, W + ELen); + true -> + PW = cind_pair(P, Col0, Ll, M, Ind, LD1, 0), + cind_pairs_tail(Ps, Col0, Col0 + PW, Ll, M, Ind, LD, PW) + end; +cind_pairs_tail(_, _Col0, _Col, _Ll, _M, Ind, _LD, _W) -> + Ind. + +cind_pair({{map_pair, _Key, _Value}, Len}=Pair, Col, Ll, M, _Ind, LD, W) + when Len < Ll - Col - LD, Len + W + LD =< M -> + if + ?ATM_PAIR(Pair) -> + Len; + true -> + Ll + end; +cind_pair({{map_pair, K, V}, _Len}, Col0, Ll, M, Ind, LD, W0) -> + cind(K, Col0, Ll, M, Ind, LD, W0), + I = map_value_indent(Ind), + cind(V, Col0 + I, Ll, M, Ind, LD, 0), + Ll. + +map_value_indent(TInd) -> + case TInd > 0 of + true -> + TInd; + false -> + 4 + end. + cind_record([F | Fs], Nlen, Col0, Ll, M, Ind, LD, W0) -> Nind = Nlen + 1, {Col, W} = cind_rec(Nind, Col0, Ll, M, Ind, W0), diff --git a/lib/stdlib/src/proplists.erl b/lib/stdlib/src/proplists.erl index 21de8c45c1..340dfdcac9 100644 --- a/lib/stdlib/src/proplists.erl +++ b/lib/stdlib/src/proplists.erl @@ -83,7 +83,7 @@ property(Key, Value) -> %% --------------------------------------------------------------------- -%% @doc Unfolds all occurences of atoms in <code>ListIn</code> to tuples +%% @doc Unfolds all occurrences of atoms in <code>ListIn</code> to tuples %% <code>{Atom, true}</code>. %% %% @see compact/1 diff --git a/lib/stdlib/src/qlc.erl b/lib/stdlib/src/qlc.erl index f3665824f2..8c4d835432 100644 --- a/lib/stdlib/src/qlc.erl +++ b/lib/stdlib/src/qlc.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2004-2016. All Rights Reserved. +%% Copyright Ericsson AB 2004-2017. 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. @@ -1292,6 +1292,10 @@ abstr_term(Fun, Line) when is_function(Fun) -> end; abstr_term(PPR, Line) when is_pid(PPR); is_port(PPR); is_reference(PPR) -> {special, Line, lists:flatten(io_lib:write(PPR))}; +abstr_term(Map, Line) when is_map(Map) -> + {map,Line, + [{map_field_assoc,Line,abstr_term(K, Line),abstr_term(V, Line)} || + {K,V} <- maps:to_list(Map)]}; abstr_term(Simple, Line) -> erl_parse:abstract(Simple, erl_anno:line(Line)). diff --git a/lib/stdlib/src/sofs.erl b/lib/stdlib/src/sofs.erl index c244e06ca4..cc50e1b52c 100644 --- a/lib/stdlib/src/sofs.erl +++ b/lib/stdlib/src/sofs.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2001-2016. All Rights Reserved. +%% Copyright Ericsson AB 2001-2017. 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. @@ -76,7 +76,7 @@ %% %% See also "Naive Set Theory" by Paul R. Halmos. %% -%% By convention, erlang:error/2 is called from exported functions. +%% By convention, erlang:error/1 is called from exported functions. -define(TAG, 'Set'). -define(ORDTAG, 'OrdSet'). @@ -87,12 +87,6 @@ -define(LIST(S), (S)#?TAG.data). -define(TYPE(S), (S)#?TAG.type). -%%-define(SET(L, T), -%% case is_type(T) of -%% true -> #?TAG{data = L, type = T}; -%% false -> erlang:error(badtype, [T]) -%% end -%% ). -define(SET(L, T), #?TAG{data = L, type = T}). -define(IS_SET(S), is_record(S, ?TAG)). -define(IS_UNTYPED_SET(S), ?TYPE(S) =:= ?ANYTYPE). @@ -154,11 +148,8 @@ from_term(T) -> _ when is_list(T) -> [?ANYTYPE]; _ -> ?ANYTYPE end, - case catch setify(T, Type) of - {'EXIT', _} -> - erlang:error(badarg, [T]); - Set -> - Set + try setify(T, Type) + catch _:_ -> erlang:error(badarg) end. -spec(from_term(Term, Type) -> AnySet when @@ -168,14 +159,11 @@ from_term(T) -> from_term(L, T) -> case is_type(T) of true -> - case catch setify(L, T) of - {'EXIT', _} -> - erlang:error(badarg, [L, T]); - Set -> - Set + try setify(L, T) + catch _:_ -> erlang:error(badarg) end; false -> - erlang:error(badarg, [L, T]) + erlang:error(badarg) end. -spec(from_external(ExternalSet, Type) -> AnySet when @@ -208,33 +196,26 @@ is_type(_T) -> Set :: a_set(), Terms :: [term()]). set(L) -> - case catch usort(L) of - {'EXIT', _} -> - erlang:error(badarg, [L]); - SL -> - ?SET(SL, ?ATOM_TYPE) + try usort(L) of + SL -> ?SET(SL, ?ATOM_TYPE) + catch _:_ -> erlang:error(badarg) end. -spec(set(Terms, Type) -> Set when Set :: a_set(), Terms :: [term()], Type :: type()). -set(L, ?SET_OF(Type) = T) when ?IS_ATOM_TYPE(Type), Type =/= ?ANYTYPE -> - case catch usort(L) of - {'EXIT', _} -> - erlang:error(badarg, [L, T]); - SL -> - ?SET(SL, Type) +set(L, ?SET_OF(Type)) when ?IS_ATOM_TYPE(Type), Type =/= ?ANYTYPE -> + try usort(L) of + SL -> ?SET(SL, Type) + catch _:_ -> erlang:error(badarg) end; set(L, ?SET_OF(_) = T) -> - case catch setify(L, T) of - {'EXIT', _} -> - erlang:error(badarg, [L, T]); - Set -> - Set + try setify(L, T) + catch _:_ -> erlang:error(badarg) end; -set(L, T) -> - erlang:error(badarg, [L, T]). +set(_, _) -> + erlang:error(badarg). -spec(from_sets(ListOfSets) -> Set when Set :: a_set(), @@ -245,19 +226,19 @@ set(L, T) -> from_sets(Ss) when is_list(Ss) -> case set_of_sets(Ss, [], ?ANYTYPE) of {error, Error} -> - erlang:error(Error, [Ss]); + erlang:error(Error); Set -> Set end; from_sets(Tuple) when is_tuple(Tuple) -> case ordset_of_sets(tuple_to_list(Tuple), [], []) of error -> - erlang:error(badarg, [Tuple]); + erlang:error(badarg); Set -> Set end; -from_sets(T) -> - erlang:error(badarg, [T]). +from_sets(_) -> + erlang:error(badarg). -spec(relation(Tuples) -> Relation when Relation :: relation(), @@ -265,14 +246,11 @@ from_sets(T) -> relation([]) -> ?SET([], ?BINREL(?ATOM_TYPE, ?ATOM_TYPE)); relation(Ts = [T | _]) when is_tuple(T) -> - case catch rel(Ts, tuple_size(T)) of - {'EXIT', _} -> - erlang:error(badarg, [Ts]); - Set -> - Set + try rel(Ts, tuple_size(T)) + catch _:_ -> erlang:error(badarg) end; -relation(E) -> - erlang:error(badarg, [E]). +relation(_) -> + erlang:error(badarg). -spec(relation(Tuples, Type) -> Relation when N :: integer(), @@ -280,24 +258,20 @@ relation(E) -> Relation :: relation(), Tuples :: [tuple()]). relation(Ts, TS) -> - case catch rel(Ts, TS) of - {'EXIT', _} -> - erlang:error(badarg, [Ts, TS]); - Set -> - Set + try rel(Ts, TS) + catch _:_ -> erlang:error(badarg) end. -spec(a_function(Tuples) -> Function when Function :: a_function(), Tuples :: [tuple()]). a_function(Ts) -> - case catch func(Ts, ?BINREL(?ATOM_TYPE, ?ATOM_TYPE)) of - {'EXIT', _} -> - erlang:error(badarg, [Ts]); + try func(Ts, ?BINREL(?ATOM_TYPE, ?ATOM_TYPE)) of Bad when is_atom(Bad) -> - erlang:error(Bad, [Ts]); - Set -> - Set + erlang:error(Bad); + Set -> + Set + catch _:_ -> erlang:error(badarg) end. -spec(a_function(Tuples, Type) -> Function when @@ -305,26 +279,24 @@ a_function(Ts) -> Tuples :: [tuple()], Type :: type()). a_function(Ts, T) -> - case catch a_func(Ts, T) of - {'EXIT', _} -> - erlang:error(badarg, [Ts, T]); + try a_func(Ts, T) of Bad when is_atom(Bad) -> - erlang:error(Bad, [Ts, T]); + erlang:error(Bad); Set -> Set + catch _:_ -> erlang:error(badarg) end. -spec(family(Tuples) -> Family when Family :: family(), Tuples :: [tuple()]). family(Ts) -> - case catch fam2(Ts, ?FAMILY(?ATOM_TYPE, ?ATOM_TYPE)) of - {'EXIT', _} -> - erlang:error(badarg, [Ts]); + try fam2(Ts, ?FAMILY(?ATOM_TYPE, ?ATOM_TYPE)) of Bad when is_atom(Bad) -> - erlang:error(Bad, [Ts]); + erlang:error(Bad); Set -> Set + catch _:_ -> erlang:error(badarg) end. -spec(family(Tuples, Type) -> Family when @@ -332,13 +304,12 @@ family(Ts) -> Tuples :: [tuple()], Type :: type()). family(Ts, T) -> - case catch fam(Ts, T) of - {'EXIT', _} -> - erlang:error(badarg, [Ts, T]); + try fam(Ts, T) of Bad when is_atom(Bad) -> - erlang:error(Bad, [Ts, T]); + erlang:error(Bad); Set -> Set + catch _:_ -> erlang:error(badarg) end. %%% @@ -373,7 +344,7 @@ to_sets(S) when ?IS_SET(S) -> to_sets(S) when ?IS_ORDSET(S), is_tuple(?ORDTYPE(S)) -> tuple_of_sets(tuple_to_list(?ORDDATA(S)), tuple_to_list(?ORDTYPE(S)), []); to_sets(S) when ?IS_ORDSET(S) -> - erlang:error(badarg, [S]). + erlang:error(badarg). -spec(no_elements(ASet) -> NoElements when ASet :: a_set() | ordset(), @@ -383,7 +354,7 @@ no_elements(S) when ?IS_SET(S) -> no_elements(S) when ?IS_ORDSET(S), is_tuple(?ORDTYPE(S)) -> tuple_size(?ORDDATA(S)); no_elements(S) when ?IS_ORDSET(S) -> - erlang:error(badarg, [S]). + erlang:error(badarg). -spec(specification(Fun, Set1) -> Set2 when Fun :: spec_fun(), @@ -401,7 +372,7 @@ specification(Fun, S) when ?IS_SET(S) -> SL when is_list(SL) -> ?SET(SL, Type); Bad -> - erlang:error(Bad, [Fun, S]) + erlang:error(Bad) end. -spec(union(Set1, Set2) -> Set3 when @@ -410,7 +381,7 @@ specification(Fun, S) when ?IS_SET(S) -> Set3 :: a_set()). union(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case unify_types(?TYPE(S1), ?TYPE(S2)) of - [] -> erlang:error(type_mismatch, [S1, S2]); + [] -> erlang:error(type_mismatch); Type -> ?SET(umerge(?LIST(S1), ?LIST(S2)), Type) end. @@ -420,7 +391,7 @@ union(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> Set3 :: a_set()). intersection(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case unify_types(?TYPE(S1), ?TYPE(S2)) of - [] -> erlang:error(type_mismatch, [S1, S2]); + [] -> erlang:error(type_mismatch); Type -> ?SET(intersection(?LIST(S1), ?LIST(S2), []), Type) end. @@ -430,7 +401,7 @@ intersection(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> Set3 :: a_set()). difference(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case unify_types(?TYPE(S1), ?TYPE(S2)) of - [] -> erlang:error(type_mismatch, [S1, S2]); + [] -> erlang:error(type_mismatch); Type -> ?SET(difference(?LIST(S1), ?LIST(S2), []), Type) end. @@ -440,7 +411,7 @@ difference(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> Set3 :: a_set()). symdiff(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case unify_types(?TYPE(S1), ?TYPE(S2)) of - [] -> erlang:error(type_mismatch, [S1, S2]); + [] -> erlang:error(type_mismatch); Type -> ?SET(symdiff(?LIST(S1), ?LIST(S2), []), Type) end. @@ -452,7 +423,7 @@ symdiff(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> Set5 :: a_set()). symmetric_partition(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case unify_types(?TYPE(S1), ?TYPE(S2)) of - [] -> erlang:error(type_mismatch, [S1, S2]); + [] -> erlang:error(type_mismatch); Type -> sympart(?LIST(S1), ?LIST(S2), [], [], [], Type) end. @@ -477,11 +448,9 @@ product({S1, S2}) -> product(S1, S2); product(T) when is_tuple(T) -> Ss = tuple_to_list(T), - case catch sets_to_list(Ss) of - {'EXIT', _} -> - erlang:error(badarg, [T]); + try sets_to_list(Ss) of [] -> - erlang:error(badarg, [T]); + erlang:error(badarg); L -> Type = types(Ss, []), case member([], L) of @@ -490,6 +459,7 @@ product(T) when is_tuple(T) -> false -> ?SET(reverse(prod(L, [], [])), Type) end + catch _:_ -> erlang:error(badarg) end. -spec(constant_function(Set, AnySet) -> Function when @@ -502,10 +472,10 @@ constant_function(S, E) when ?IS_SET(S) -> {Type, true} -> NType = ?BINREL(Type, type(E)), ?SET(constant_function(?LIST(S), to_external(E), []), NType); - _ -> erlang:error(badarg, [S, E]) + _ -> erlang:error(badarg) end; -constant_function(S, E) when ?IS_ORDSET(S) -> - erlang:error(badarg, [S, E]). +constant_function(S, _) when ?IS_ORDSET(S) -> + erlang:error(badarg). -spec(is_equal(AnySet1, AnySet2) -> Bool when AnySet1 :: anyset(), @@ -514,17 +484,17 @@ constant_function(S, E) when ?IS_ORDSET(S) -> is_equal(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case match_types(?TYPE(S1), ?TYPE(S2)) of true -> ?LIST(S1) == ?LIST(S2); - false -> erlang:error(type_mismatch, [S1, S2]) + false -> erlang:error(type_mismatch) end; is_equal(S1, S2) when ?IS_ORDSET(S1), ?IS_ORDSET(S2) -> case match_types(?ORDTYPE(S1), ?ORDTYPE(S2)) of true -> ?ORDDATA(S1) == ?ORDDATA(S2); - false -> erlang:error(type_mismatch, [S1, S2]) + false -> erlang:error(type_mismatch) end; is_equal(S1, S2) when ?IS_SET(S1), ?IS_ORDSET(S2) -> - erlang:error(type_mismatch, [S1, S2]); + erlang:error(type_mismatch); is_equal(S1, S2) when ?IS_ORDSET(S1), ?IS_SET(S2) -> - erlang:error(type_mismatch, [S1, S2]). + erlang:error(type_mismatch). -spec(is_subset(Set1, Set2) -> Bool when Bool :: boolean(), @@ -533,7 +503,7 @@ is_equal(S1, S2) when ?IS_ORDSET(S1), ?IS_SET(S2) -> is_subset(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> case match_types(?TYPE(S1), ?TYPE(S2)) of true -> subset(?LIST(S1), ?LIST(S2)); - false -> erlang:error(type_mismatch, [S1, S2]) + false -> erlang:error(type_mismatch) end. -spec(is_sofs_set(Term) -> Bool when @@ -573,7 +543,7 @@ is_disjoint(S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> [] -> true; [A | As] -> disjoint(?LIST(S2), A, As) end; - false -> erlang:error(type_mismatch, [S1, S2]) + false -> erlang:error(type_mismatch) end. %%% @@ -587,7 +557,7 @@ union(Sets) when ?IS_SET(Sets) -> case ?TYPE(Sets) of ?SET_OF(Type) -> ?SET(lunion(?LIST(Sets)), Type); ?ANYTYPE -> Sets; - _ -> erlang:error(badarg, [Sets]) + _ -> erlang:error(badarg) end. -spec(intersection(SetOfSets) -> Set when @@ -595,12 +565,12 @@ union(Sets) when ?IS_SET(Sets) -> SetOfSets :: set_of_sets()). intersection(Sets) when ?IS_SET(Sets) -> case ?LIST(Sets) of - [] -> erlang:error(badarg, [Sets]); + [] -> erlang:error(badarg); [L | Ls] -> case ?TYPE(Sets) of ?SET_OF(Type) -> ?SET(lintersection(Ls, L), Type); - _ -> erlang:error(badarg, [Sets]) + _ -> erlang:error(badarg) end end. @@ -614,7 +584,7 @@ canonical_relation(Sets) when ?IS_SET(Sets) -> ?SET_OF(Type) -> ?SET(can_rel(?LIST(Sets), []), ?BINREL(Type, ST)); ?ANYTYPE -> Sets; - _ -> erlang:error(badarg, [Sets]) + _ -> erlang:error(badarg) end. %%% @@ -636,7 +606,7 @@ relation_to_family(R) when ?IS_SET(R) -> ?BINREL(DT, RT) -> ?SET(rel2family(?LIST(R)), ?FAMILY(DT, RT)); ?ANYTYPE -> R; - _Else -> erlang:error(badarg, [R]) + _Else -> erlang:error(badarg) end. -spec(domain(BinRel) -> Set when @@ -646,7 +616,7 @@ domain(R) when ?IS_SET(R) -> case ?TYPE(R) of ?BINREL(DT, _) -> ?SET(dom(?LIST(R)), DT); ?ANYTYPE -> R; - _Else -> erlang:error(badarg, [R]) + _Else -> erlang:error(badarg) end. -spec(range(BinRel) -> Set when @@ -656,7 +626,7 @@ range(R) when ?IS_SET(R) -> case ?TYPE(R) of ?BINREL(_, RT) -> ?SET(ran(?LIST(R), []), RT); ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R]) + _ -> erlang:error(badarg) end. -spec(field(BinRel) -> Set when @@ -679,7 +649,7 @@ relative_product(RT) when is_tuple(RT) -> relative_product(RL) when is_list(RL) -> case relprod_n(RL, foo, false, false) of {error, Reason} -> - erlang:error(Reason, [RL]); + erlang:error(Reason); Reply -> Reply end. @@ -703,11 +673,11 @@ relative_product(RL, R) when is_list(RL), ?IS_SET(R) -> EmptyR = case ?TYPE(R) of ?BINREL(_, _) -> ?LIST(R) =:= []; ?ANYTYPE -> true; - _ -> erlang:error(badarg, [RL, R]) + _ -> erlang:error(badarg) end, case relprod_n(RL, R, EmptyR, true) of {error, Reason} -> - erlang:error(Reason, [RL, R]); + erlang:error(Reason); Reply -> Reply end. @@ -720,18 +690,18 @@ relative_product1(R1, R2) when ?IS_SET(R1), ?IS_SET(R2) -> {DTR1, RTR1} = case ?TYPE(R1) of ?BINREL(_, _) = R1T -> R1T; ?ANYTYPE -> {?ANYTYPE, ?ANYTYPE}; - _ -> erlang:error(badarg, [R1, R2]) + _ -> erlang:error(badarg) end, {DTR2, RTR2} = case ?TYPE(R2) of ?BINREL(_, _) = R2T -> R2T; ?ANYTYPE -> {?ANYTYPE, ?ANYTYPE}; - _ -> erlang:error(badarg, [R1, R2]) + _ -> erlang:error(badarg) end, case match_types(DTR1, DTR2) of true when DTR1 =:= ?ANYTYPE -> R1; true when DTR2 =:= ?ANYTYPE -> R2; true -> ?SET(relprod(?LIST(R1), ?LIST(R2)), ?BINREL(RTR1, RTR2)); - false -> erlang:error(type_mismatch, [R1, R2]) + false -> erlang:error(type_mismatch) end. -spec(converse(BinRel1) -> BinRel2 when @@ -741,7 +711,7 @@ converse(R) when ?IS_SET(R) -> case ?TYPE(R) of ?BINREL(DT, RT) -> ?SET(converse(?LIST(R), []), ?BINREL(RT, DT)); ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R]) + _ -> erlang:error(badarg) end. -spec(image(BinRel, Set1) -> Set2 when @@ -755,10 +725,10 @@ image(R, S) when ?IS_SET(R), ?IS_SET(S) -> true -> ?SET(usort(restrict(?LIST(S), ?LIST(R))), RT); false -> - erlang:error(type_mismatch, [R, S]) + erlang:error(type_mismatch) end; ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R, S]) + _ -> erlang:error(badarg) end. -spec(inverse_image(BinRel, Set1) -> Set2 when @@ -773,10 +743,10 @@ inverse_image(R, S) when ?IS_SET(R), ?IS_SET(S) -> NL = restrict(?LIST(S), converse(?LIST(R), [])), ?SET(usort(NL), DT); false -> - erlang:error(type_mismatch, [R, S]) + erlang:error(type_mismatch) end; ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R, S]) + _ -> erlang:error(badarg) end. -spec(strict_relation(BinRel1) -> BinRel2 when @@ -787,7 +757,7 @@ strict_relation(R) when ?IS_SET(R) -> Type = ?BINREL(_, _) -> ?SET(strict(?LIST(R), []), Type); ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R]) + _ -> erlang:error(badarg) end. -spec(weak_relation(BinRel1) -> BinRel2 when @@ -798,12 +768,12 @@ weak_relation(R) when ?IS_SET(R) -> ?BINREL(DT, RT) -> case unify_types(DT, RT) of [] -> - erlang:error(badarg, [R]); + erlang:error(badarg); Type -> ?SET(weak(?LIST(R)), ?BINREL(Type, Type)) end; ?ANYTYPE -> R; - _ -> erlang:error(badarg, [R]) + _ -> erlang:error(badarg) end. -spec(extension(BinRel1, Set, AnySet) -> BinRel2 when @@ -816,7 +786,7 @@ extension(R, S, E) when ?IS_SET(R), ?IS_SET(S) -> {T=?BINREL(DT, RT), ST, true} -> case match_types(DT, ST) and match_types(RT, type(E)) of false -> - erlang:error(type_mismatch, [R, S, E]); + erlang:error(type_mismatch); true -> RL = ?LIST(R), case extc([], ?LIST(S), to_external(E), RL) of @@ -836,7 +806,7 @@ extension(R, S, E) when ?IS_SET(R), ?IS_SET(S) -> ?SET([], ?BINREL(ST, ET)) end; {_, _, true} -> - erlang:error(badarg, [R, S, E]) + erlang:error(badarg) end. -spec(is_a_function(BinRel) -> Bool when @@ -850,7 +820,7 @@ is_a_function(R) when ?IS_SET(R) -> [{V,_} | Es] -> is_a_func(Es, V) end; ?ANYTYPE -> true; - _ -> erlang:error(badarg, [R]) + _ -> erlang:error(badarg) end. -spec(restriction(BinRel1, Set) -> BinRel2 when @@ -879,12 +849,12 @@ composite(Fn1, Fn2) when ?IS_SET(Fn1), ?IS_SET(Fn2) -> ?BINREL(DTF1, RTF1) = case ?TYPE(Fn1)of ?BINREL(_, _) = F1T -> F1T; ?ANYTYPE -> {?ANYTYPE, ?ANYTYPE}; - _ -> erlang:error(badarg, [Fn1, Fn2]) + _ -> erlang:error(badarg) end, ?BINREL(DTF2, RTF2) = case ?TYPE(Fn2) of ?BINREL(_, _) = F2T -> F2T; ?ANYTYPE -> {?ANYTYPE, ?ANYTYPE}; - _ -> erlang:error(badarg, [Fn1, Fn2]) + _ -> erlang:error(badarg) end, case match_types(RTF1, DTF2) of true when DTF1 =:= ?ANYTYPE -> Fn1; @@ -894,9 +864,9 @@ composite(Fn1, Fn2) when ?IS_SET(Fn1), ?IS_SET(Fn2) -> SL when is_list(SL) -> ?SET(sort(SL), ?BINREL(DTF1, RTF2)); Bad -> - erlang:error(Bad, [Fn1, Fn2]) + erlang:error(Bad) end; - false -> erlang:error(type_mismatch, [Fn1, Fn2]) + false -> erlang:error(type_mismatch) end. -spec(inverse(Function1) -> Function2 when @@ -909,10 +879,10 @@ inverse(Fn) when ?IS_SET(Fn) -> SL when is_list(SL) -> ?SET(SL, ?BINREL(RT, DT)); Bad -> - erlang:error(Bad, [Fn]) + erlang:error(Bad) end; ?ANYTYPE -> Fn; - _ -> erlang:error(badarg, [Fn]) + _ -> erlang:error(badarg) end. %%% @@ -932,7 +902,7 @@ restriction(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> empty -> R; error -> - erlang:error(badarg, [I, R, S]); + erlang:error(badarg); Sort -> RL = ?LIST(R), case {match_types(?REL_TYPE(I, RT), ST), ?LIST(S)} of @@ -945,7 +915,7 @@ restriction(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> {true, [E | Es]} -> ?SET(sort(restrict_n(I, keysort(I, RL), E, Es, [])), RT); {false, _SL} -> - erlang:error(type_mismatch, [I, R, S]) + erlang:error(type_mismatch) end end; restriction(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> @@ -963,28 +933,27 @@ restriction(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> NL = sort(restrict(?LIST(S2), converse(NSL, []))), ?SET(NL, Type1); false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end; Bad -> - erlang:error(Bad, [SetFun, S1, S2]) + erlang:error(Bad) end; _ when Type1 =:= ?ANYTYPE -> S1; _XFun when ?IS_SET_OF(Type1) -> - erlang:error(badarg, [SetFun, S1, S2]); + erlang:error(badarg); XFun -> FunT = XFun(Type1), - case catch check_fun(Type1, XFun, FunT) of - {'EXIT', _} -> - erlang:error(badarg, [SetFun, S1, S2]); + try check_fun(Type1, XFun, FunT) of Sort -> case match_types(FunT, Type2) of true -> R1 = inverse_substitution(SL1, XFun, Sort), ?SET(sort(Sort, restrict(?LIST(S2), R1)), Type1); false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end + catch _:_ -> erlang:error(badarg) end end. @@ -1000,7 +969,7 @@ drestriction(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> empty -> R; error -> - erlang:error(badarg, [I, R, S]); + erlang:error(badarg); Sort -> RL = ?LIST(R), case {match_types(?REL_TYPE(I, RT), ST), ?LIST(S)} of @@ -1013,7 +982,7 @@ drestriction(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> {true, [E | Es]} -> ?SET(diff_restrict_n(I, keysort(I, RL), E, Es, []), RT); {false, _SL} -> - erlang:error(type_mismatch, [I, R, S]) + erlang:error(type_mismatch) end end; drestriction(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> @@ -1032,20 +1001,18 @@ drestriction(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> NL = sort(diff_restrict(SL2, converse(NSL, []))), ?SET(NL, Type1); false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end; Bad -> - erlang:error(Bad, [SetFun, S1, S2]) + erlang:error(Bad) end; _ when Type1 =:= ?ANYTYPE -> S1; _XFun when ?IS_SET_OF(Type1) -> - erlang:error(badarg, [SetFun, S1, S2]); + erlang:error(badarg); XFun -> FunT = XFun(Type1), - case catch check_fun(Type1, XFun, FunT) of - {'EXIT', _} -> - erlang:error(badarg, [SetFun, S1, S2]); + try check_fun(Type1, XFun, FunT) of Sort -> case match_types(FunT, Type2) of true -> @@ -1053,8 +1020,9 @@ drestriction(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> SL2 = ?LIST(S2), ?SET(sort(Sort, diff_restrict(SL2, R1)), Type1); false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end + catch _:_ -> erlang:error(badarg) end end. @@ -1068,7 +1036,7 @@ projection(I, Set) when is_integer(I), ?IS_SET(Set) -> empty -> Set; error -> - erlang:error(badarg, [I, Set]); + erlang:error(badarg); _ when I =:= 1 -> ?SET(projection1(?LIST(Set)), ?REL_TYPE(I, Type)); _ -> @@ -1087,7 +1055,7 @@ substitution(I, Set) when is_integer(I), ?IS_SET(Set) -> empty -> Set; error -> - erlang:error(badarg, [I, Set]); + erlang:error(badarg); _Sort -> NType = ?REL_TYPE(I, Type), NSL = substitute_element(?LIST(Set), I, []), @@ -1102,22 +1070,21 @@ substitution(SetFun, Set) when ?IS_SET(Set) -> {SL, NewType} -> ?SET(reverse(SL), ?BINREL(Type, NewType)); Bad -> - erlang:error(Bad, [SetFun, Set]) + erlang:error(Bad) end; false -> empty_set(); _ when Type =:= ?ANYTYPE -> empty_set(); _XFun when ?IS_SET_OF(Type) -> - erlang:error(badarg, [SetFun, Set]); + erlang:error(badarg); XFun -> FunT = XFun(Type), - case catch check_fun(Type, XFun, FunT) of - {'EXIT', _} -> - erlang:error(badarg, [SetFun, Set]); + try check_fun(Type, XFun, FunT) of _Sort -> SL = substitute(L, XFun, []), ?SET(SL, ?BINREL(Type, FunT)) + catch _:_ -> erlang:error(badarg) end end. @@ -1139,7 +1106,7 @@ partition(I, Set) when is_integer(I), ?IS_SET(Set) -> empty -> Set; error -> - erlang:error(badarg, [I, Set]); + erlang:error(badarg); false -> % I =:= 1 ?SET(partition_n(I, ?LIST(Set)), ?SET_OF(Type)); true -> @@ -1161,7 +1128,7 @@ partition(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> empty -> {R, R}; error -> - erlang:error(badarg, [I, R, S]); + erlang:error(badarg); Sort -> RL = ?LIST(R), case {match_types(?REL_TYPE(I, RT), ST), ?LIST(S)} of @@ -1176,7 +1143,7 @@ partition(I, R, S) when is_integer(I), ?IS_SET(R), ?IS_SET(S) -> [L1 | L2] = partition3_n(I, keysort(I,RL), E, Es, [], []), {?SET(L1, RT), ?SET(L2, RT)}; {false, _SL} -> - erlang:error(type_mismatch, [I, R, S]) + erlang:error(type_mismatch) end end; partition(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> @@ -1195,20 +1162,18 @@ partition(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> [L1 | L2] = partition3(?LIST(S2), R1), {?SET(sort(L1), Type1), ?SET(sort(L2), Type1)}; false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end; Bad -> - erlang:error(Bad, [SetFun, S1, S2]) + erlang:error(Bad) end; _ when Type1 =:= ?ANYTYPE -> {S1, S1}; _XFun when ?IS_SET_OF(Type1) -> - erlang:error(badarg, [SetFun, S1, S2]); + erlang:error(badarg); XFun -> FunT = XFun(Type1), - case catch check_fun(Type1, XFun, FunT) of - {'EXIT', _} -> - erlang:error(badarg, [SetFun, S1, S2]); + try check_fun(Type1, XFun, FunT) of Sort -> case match_types(FunT, Type2) of true -> @@ -1216,8 +1181,9 @@ partition(SetFun, S1, S2) when ?IS_SET(S1), ?IS_SET(S2) -> [L1 | L2] = partition3(?LIST(S2), R1), {?SET(sort(L1), Type1), ?SET(sort(L2), Type1)}; false -> - erlang:error(type_mismatch, [SetFun, S1, S2]) + erlang:error(type_mismatch) end + catch _:_ -> erlang:error(badarg) end end. @@ -1234,7 +1200,7 @@ multiple_relative_product(T, R) when is_tuple(T), ?IS_SET(R) -> MProd = mul_relprod(tuple_to_list(T), 1, R), relative_product(MProd); false -> - erlang:error(badarg, [T, R]) + erlang:error(badarg) end. -spec(join(Relation1, I, Relation2, J) -> Relation3 when @@ -1246,8 +1212,7 @@ multiple_relative_product(T, R) when is_tuple(T), ?IS_SET(R) -> join(R1, I1, R2, I2) when ?IS_SET(R1), ?IS_SET(R2), is_integer(I1), is_integer(I2) -> case test_rel(R1, I1, lte) and test_rel(R2, I2, lte) of - false -> - erlang:error(badarg, [R1, I1, R2, I2]); + false -> erlang:error(badarg); true when ?TYPE(R1) =:= ?ANYTYPE -> R1; true when ?TYPE(R2) =:= ?ANYTYPE -> R2; true -> @@ -1294,7 +1259,7 @@ family_to_relation(F) when ?IS_SET(F) -> ?FAMILY(DT, RT) -> ?SET(family2rel(?LIST(F), []), ?BINREL(DT, RT)); ?ANYTYPE -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_specification(Fun, Family1) -> Family2 when @@ -1314,10 +1279,10 @@ family_specification(Fun, F) when ?IS_SET(F) -> SL when is_list(SL) -> ?SET(SL, FType); Bad -> - erlang:error(Bad, [Fun, F]) + erlang:error(Bad) end; ?ANYTYPE -> F; - _ -> erlang:error(badarg, [Fun, F]) + _ -> erlang:error(badarg) end. -spec(union_of_family(Family) -> Set when @@ -1328,7 +1293,7 @@ union_of_family(F) when ?IS_SET(F) -> ?FAMILY(_DT, Type) -> ?SET(un_of_fam(?LIST(F), []), Type); ?ANYTYPE -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(intersection_of_family(Family) -> Set when @@ -1341,9 +1306,9 @@ intersection_of_family(F) when ?IS_SET(F) -> FU when is_list(FU) -> ?SET(FU, Type); Bad -> - erlang:error(Bad, [F]) + erlang:error(Bad) end; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_union(Family1) -> Family2 when @@ -1354,7 +1319,7 @@ family_union(F) when ?IS_SET(F) -> ?FAMILY(DT, ?SET_OF(Type)) -> ?SET(fam_un(?LIST(F), []), ?FAMILY(DT, Type)); ?ANYTYPE -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_intersection(Family1) -> Family2 when @@ -1367,10 +1332,10 @@ family_intersection(F) when ?IS_SET(F) -> FU when is_list(FU) -> ?SET(FU, ?FAMILY(DT, Type)); Bad -> - erlang:error(Bad, [F]) + erlang:error(Bad) end; ?ANYTYPE -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_domain(Family1) -> Family2 when @@ -1382,7 +1347,7 @@ family_domain(F) when ?IS_SET(F) -> ?SET(fam_dom(?LIST(F), []), ?FAMILY(FDT, DT)); ?ANYTYPE -> F; ?FAMILY(_, ?ANYTYPE) -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_range(Family1) -> Family2 when @@ -1394,7 +1359,7 @@ family_range(F) when ?IS_SET(F) -> ?SET(fam_ran(?LIST(F), []), ?FAMILY(DT, RT)); ?ANYTYPE -> F; ?FAMILY(_, ?ANYTYPE) -> F; - _ -> erlang:error(badarg, [F]) + _ -> erlang:error(badarg) end. -spec(family_field(Family1) -> Family2 when @@ -1428,12 +1393,12 @@ family_difference(F1, F2) -> fam_binop(F1, F2, FF) when ?IS_SET(F1), ?IS_SET(F2) -> case unify_types(?TYPE(F1), ?TYPE(F2)) of [] -> - erlang:error(type_mismatch, [F1, F2]); + erlang:error(type_mismatch); ?ANYTYPE -> F1; Type = ?FAMILY(_, _) -> ?SET(FF(?LIST(F1), ?LIST(F2), []), Type); - _ -> erlang:error(badarg, [F1, F2]) + _ -> erlang:error(badarg) end. -spec(partition_family(SetFun, Set) -> Family when @@ -1446,7 +1411,7 @@ partition_family(I, Set) when is_integer(I), ?IS_SET(Set) -> empty -> Set; error -> - erlang:error(badarg, [I, Set]); + erlang:error(badarg); false -> % when I =:= 1 ?SET(fam_partition_n(I, ?LIST(Set)), ?BINREL(?REL_TYPE(I, Type), ?SET_OF(Type))); @@ -1464,23 +1429,22 @@ partition_family(SetFun, Set) when ?IS_SET(Set) -> P = fam_partition(converse(NSL, []), true), ?SET(reverse(P), ?BINREL(NewType, ?SET_OF(Type))); Bad -> - erlang:error(Bad, [SetFun, Set]) + erlang:error(Bad) end; false -> empty_set(); _ when Type =:= ?ANYTYPE -> empty_set(); _XFun when ?IS_SET_OF(Type) -> - erlang:error(badarg, [SetFun, Set]); + erlang:error(badarg); XFun -> DType = XFun(Type), - case catch check_fun(Type, XFun, DType) of - {'EXIT', _} -> - erlang:error(badarg, [SetFun, Set]); + try check_fun(Type, XFun, DType) of Sort -> Ts = inverse_substitution(?LIST(Set), XFun, Sort), P = fam_partition(Ts, Sort), ?SET(reverse(P), ?BINREL(DType, ?SET_OF(Type))) + catch _:_ -> erlang:error(badarg) end end. @@ -1499,13 +1463,13 @@ family_projection(SetFun, F) when ?IS_SET(F) -> {SL, NewType} -> ?SET(SL, ?BINREL(DT, NewType)); Bad -> - erlang:error(Bad, [SetFun, F]) + erlang:error(Bad) end; _ -> - erlang:error(badarg, [SetFun, F]) + erlang:error(badarg) end; ?ANYTYPE -> F; - _ -> erlang:error(badarg, [SetFun, F]) + _ -> erlang:error(badarg) end. %%% @@ -1519,7 +1483,7 @@ family_to_digraph(F) when ?IS_SET(F) -> case ?TYPE(F) of ?FAMILY(_, _) -> fam2digraph(F, digraph:new()); ?ANYTYPE -> digraph:new(); - _Else -> erlang:error(badarg, [F]) + _Else -> erlang:error(badarg) end. -spec(family_to_digraph(Family, GraphType) -> Graph when @@ -1530,27 +1494,27 @@ family_to_digraph(F, Type) when ?IS_SET(F) -> case ?TYPE(F) of ?FAMILY(_, _) -> ok; ?ANYTYPE -> ok; - _Else -> erlang:error(badarg, [F, Type]) + _Else -> erlang:error(badarg) end, try digraph:new(Type) of G -> case catch fam2digraph(F, G) of {error, Reason} -> true = digraph:delete(G), - erlang:error(Reason, [F, Type]); + erlang:error(Reason); _ -> G end catch - error:badarg -> erlang:error(badarg, [F, Type]) + error:badarg -> erlang:error(badarg) end. -spec(digraph_to_family(Graph) -> Family when Graph :: digraph:graph(), Family :: family()). digraph_to_family(G) -> - case catch digraph_family(G) of - {'EXIT', _} -> erlang:error(badarg, [G]); + try digraph_family(G) of L -> ?SET(L, ?FAMILY(?ATOM_TYPE, ?ATOM_TYPE)) + catch _:_ -> erlang:error(badarg) end. -spec(digraph_to_family(Graph, Type) -> Family when @@ -1560,12 +1524,12 @@ digraph_to_family(G) -> digraph_to_family(G, T) -> case {is_type(T), T} of {true, ?SET_OF(?FAMILY(_,_) = Type)} -> - case catch digraph_family(G) of - {'EXIT', _} -> erlang:error(badarg, [G, T]); + try digraph_family(G) of L -> ?SET(L, Type) + catch _:_ -> erlang:error(badarg) end; _ -> - erlang:error(badarg, [G, T]) + erlang:error(badarg) end. %% @@ -1713,14 +1677,15 @@ func_type([], SL, Type, F) -> setify(L, ?SET_OF(Atom)) when ?IS_ATOM_TYPE(Atom), Atom =/= ?ANYTYPE -> ?SET(usort(L), Atom); setify(L, ?SET_OF(Type0)) -> - case catch is_no_lists(Type0) of - {'EXIT', _} -> - {?SET_OF(Type), Set} = create(L, Type0, Type0, []), - ?SET(Set, Type); + try is_no_lists(Type0) of N when is_integer(N) -> - rel(L, N, Type0); + rel(L, N, Type0); Sizes -> make_oset(L, Sizes, L, Type0) + catch + _:_ -> + {?SET_OF(Type), Set} = create(L, Type0, Type0, []), + ?SET(Set, Type) end; setify(E, Type0) -> {Type, OrdSet} = make_element(E, Type0, Type0), diff --git a/lib/stdlib/src/stdlib.appup.src b/lib/stdlib/src/stdlib.appup.src index 979161fef7..3c9e95e3a9 100644 --- a/lib/stdlib/src/stdlib.appup.src +++ b/lib/stdlib/src/stdlib.appup.src @@ -18,7 +18,7 @@ %% %CopyrightEnd% {"%VSN%", %% Up from - max one major revision back - [{<<"3\\.[0-1](\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-19.* + [{<<"3\\.[0-3](\\.[0-9]+)*">>,[restart_new_emulator]}], % OTP-19.* %% Down to - max one major revision back - [{<<"3\\.[0-1](\\.[0-9]+)*">>,[restart_new_emulator]}] % OTP-19.* + [{<<"3\\.[0-3](\\.[0-9]+)*">>,[restart_new_emulator]}] % OTP-19.* }. diff --git a/lib/stdlib/src/zip.erl b/lib/stdlib/src/zip.erl index 340cc21390..fadf96146e 100644 --- a/lib/stdlib/src/zip.erl +++ b/lib/stdlib/src/zip.erl @@ -179,19 +179,6 @@ external_attr, local_header_offset}). -%% Unix extra fields (not yet supported) --define(UNIX_EXTRA_FIELD_TAG, 16#000d). --record(unix_extra_field, {atime, - mtime, - uid, - gid}). - -%% extended timestamps (not yet supported) --define(EXTENDED_TIMESTAMP_TAG, 16#5455). -%% -record(extended_timestamp, {mtime, -%% atime, -%% ctime}). - -define(END_OF_CENTRAL_DIR_MAGIC, 16#06054b50). -define(END_OF_CENTRAL_DIR_SZ, (4+2+2+2+2+4+4+2)). @@ -381,9 +368,12 @@ do_unzip(F, Options) -> {Info, In1} = get_central_dir(In0, RawIterator, Input), %% get rid of zip-comment Z = zlib:open(), - Files = get_z_files(Info, Z, In1, Opts, []), - zlib:close(Z), - Input(close, In1), + Files = try + get_z_files(Info, Z, In1, Opts, []) + after + zlib:close(Z), + Input(close, In1) + end, {ok, Files}. %% Iterate over all files in a zip archive @@ -460,11 +450,20 @@ do_zip(F, Files, Options) -> #zip_opts{output = Output, open_opts = OpO} = Opts, Out0 = Output({open, F, OpO}, []), Z = zlib:open(), - {Out1, LHS, Pos} = put_z_files(Files, Z, Out0, 0, Opts, []), - zlib:close(Z), - Out2 = put_central_dir(LHS, Pos, Out1, Opts), - Out3 = Output({close, F}, Out2), - {ok, Out3}. + try + {Out1, LHS, Pos} = put_z_files(Files, Z, Out0, 0, Opts, []), + zlib:close(Z), + Out2 = put_central_dir(LHS, Pos, Out1, Opts), + Out3 = Output({close, F}, Out2), + {ok, Out3} + catch + C:R -> + Stk = erlang:get_stacktrace(), + zlib:close(Z), + Output({close, F}, Out0), + erlang:raise(C, R, Stk) + end. + %% List zip directory contents %% @@ -1379,12 +1378,7 @@ cd_file_header_to_file_info(FileName, gid = 0}, add_extra_info(FI, ExtraField). -%% add extra info to file (some day when we implement it) -add_extra_info(FI, <<?EXTENDED_TIMESTAMP_TAG:16/little, _Rest/binary>>) -> - FI; % not yet supported, some other day... -add_extra_info(FI, <<?UNIX_EXTRA_FIELD_TAG:16/little, Rest/binary>>) -> - _UnixExtra = unix_extra_field_and_var_from_bin(Rest), - FI; % not yet supported, and not widely used +%% Currently, we ignore all the extra fields. add_extra_info(FI, _) -> FI. @@ -1572,20 +1566,6 @@ dos_date_time_from_datetime({{Year, Month, Day}, {Hour, Min, Sec}}) -> <<DosDate:16>> = <<YearFrom1980:7, Month:4, Day:5>>, {DosDate, DosTime}. -unix_extra_field_and_var_from_bin(<<TSize:16/little, - ATime:32/little, - MTime:32/little, - UID:16/little, - GID:16/little, - Var:TSize/binary>>) -> - {#unix_extra_field{atime = ATime, - mtime = MTime, - uid = UID, - gid = GID}, - Var}; -unix_extra_field_and_var_from_bin(_) -> - throw(bad_unix_extra_field). - %% A pwrite-like function for iolists (used by memory-option) pwrite_binary(B, Pos, Bin) when byte_size(B) =:= Pos -> diff --git a/lib/stdlib/test/base64_SUITE.erl b/lib/stdlib/test/base64_SUITE.erl index d0abe5c961..6ddc67464c 100644 --- a/lib/stdlib/test/base64_SUITE.erl +++ b/lib/stdlib/test/base64_SUITE.erl @@ -82,7 +82,7 @@ base64_decode(Config) when is_list(Config) -> Alphabet = list_to_binary(lists:seq(0, 255)), Alphabet = base64:decode(base64:encode(Alphabet)), - %% Encoded base 64 strings may be devided by non base 64 chars. + %% Encoded base 64 strings may be divided by non base 64 chars. %% In this cases whitespaces. "0123456789!@#0^&*();:<>,. []{}" = base64:decode_to_string( diff --git a/lib/stdlib/test/edlin_expand_SUITE.erl b/lib/stdlib/test/edlin_expand_SUITE.erl index 718d91c6a3..1f694ea549 100644 --- a/lib/stdlib/test/edlin_expand_SUITE.erl +++ b/lib/stdlib/test/edlin_expand_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2010-2016. All Rights Reserved. +%% Copyright Ericsson AB 2010-2017. 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. @@ -21,7 +21,8 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_testcase/2, end_per_testcase/2, init_per_group/2,end_per_group/2]). --export([normal/1, quoted_fun/1, quoted_module/1, quoted_both/1, erl_1152/1]). +-export([normal/1, quoted_fun/1, quoted_module/1, quoted_both/1, erl_1152/1, + erl_352/1]). -include_lib("common_test/include/ct.hrl"). @@ -36,7 +37,7 @@ suite() -> {timetrap,{minutes,1}}]. all() -> - [normal, quoted_fun, quoted_module, quoted_both, erl_1152]. + [normal, quoted_fun, quoted_module, quoted_both, erl_1152, erl_352]. groups() -> []. @@ -153,6 +154,78 @@ erl_1152(Config) when is_list(Config) -> "\n"++"foo"++" "++[1089]++_ = do_format(["foo",[1089]]), ok. +erl_352(Config) when is_list(Config) -> + erl_352_test(3, 3), + + erl_352_test(3, 75), + erl_352_test(3, 76, [trailing]), + erl_352_test(4, 74), + erl_352_test(4, 75, [leading]), + erl_352_test(4, 76, [leading, trailing]), + + erl_352_test(75, 3), + erl_352_test(76, 3, [leading]), + erl_352_test(74, 4), + erl_352_test(75, 4, [leading]), + erl_352_test(76, 4, [leading]), + + erl_352_test(74, 74, [leading]), + erl_352_test(74, 75, [leading]), + erl_352_test(74, 76, [leading, trailing]). + +erl_352_test(PrefixLen, SuffixLen) -> + erl_352_test(PrefixLen, SuffixLen, []). + +erl_352_test(PrefixLen, SuffixLen, Dots) -> + io:format("\nPrefixLen = ~w, SuffixLen = ~w\n", [PrefixLen, SuffixLen]), + + PrefixM = lists:duplicate(PrefixLen, $p), + SuffixM = lists:duplicate(SuffixLen, $s), + LM = [PrefixM ++ S ++ SuffixM || S <- ["1", "2"]], + StrM = do_format(LM), + check_leading(StrM, "", PrefixM, SuffixM, Dots), + + PrefixF = lists:duplicate(PrefixLen, $p), + SuffixF = lists:duplicate(SuffixLen-2, $s), + LF = [{PrefixF ++ S ++ SuffixF, 1} || S <- ["1", "2"]], + StrF = do_format(LF), + true = check_leading(StrF, "/1", PrefixF, SuffixF, Dots), + + ok. + +check_leading(FormStr, ArityStr, Prefix, Suffix, Dots) -> + List = string:tokens(FormStr, "\n "), + io:format("~p\n", [List]), + true = lists:all(fun(L) -> length(L) < 80 end, List), + case lists:member(leading, Dots) of + true -> + true = lists:all(fun(L) -> + {"...", Rest} = lists:split(3, L), + check_trailing(Rest, ArityStr, + Suffix, Dots) + end, List); + false -> + true = lists:all(fun(L) -> + {Prefix, Rest} = + lists:split(length(Prefix), L), + check_trailing(Rest, ArityStr, + Suffix, Dots) + end, List) + end. + +check_trailing([I|Str], ArityStr, Suffix, Dots) -> + true = lists:member(I, [$1, $2]), + case lists:member(trailing, Dots) of + true -> + {Rest, "..." ++ ArityStr} = + lists:split(length(Str) - (3 + length(ArityStr)), Str), + true = lists:prefix(Rest, Suffix); + false -> + {Rest, ArityStr} = + lists:split(length(Str) - length(ArityStr), Str), + Rest =:= Suffix + end. + do_expand(String) -> edlin_expand:expand(lists:reverse(String)). diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl index f68d5eca3f..8581440d58 100644 --- a/lib/stdlib/test/ets_SUITE.erl +++ b/lib/stdlib/test/ets_SUITE.erl @@ -22,7 +22,7 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2]). -export([default/1,setbag/1,badnew/1,verybadnew/1,named/1,keypos2/1, - privacy/1,privacy_owner/2]). + privacy/1]). -export([empty/1,badinsert/1]). -export([time_lookup/1,badlookup/1,lookup_order/1]). -export([delete_elem/1,delete_tab/1,delete_large_tab/1, @@ -82,27 +82,6 @@ %% Convenience for manual testing -export([random_test/0]). -%% internal exports --export([dont_make_worse_sub/0, make_better_sub1/0, make_better_sub2/0]). --export([t_repair_continuation_do/1, t_bucket_disappears_do/1, - select_fail_do/1, whitebox_1/1, whitebox_2/1, t_delete_all_objects_do/1, - t_delete_object_do/1, t_init_table_do/1, t_insert_list_do/1, - update_element_opts/1, update_element_opts/4, update_element/4, update_element_do/4, - update_element_neg/1, update_element_neg_do/1, update_counter_do/1, update_counter_neg/1, - evil_update_counter_do/1, fixtable_next_do/1, heir_do/1, give_away_do/1, setopts_do/1, - rename_do/1, rename_unnamed_do/1, interface_equality_do/1, ordered_match_do/1, - ordered_do/1, privacy_do/1, empty_do/1, badinsert_do/1, time_lookup_do/1, - lookup_order_do/1, lookup_element_mult_do/1, delete_tab_do/1, delete_elem_do/1, - match_delete_do/1, match_delete3_do/1, firstnext_do/1, - slot_do/1, match1_do/1, match2_do/1, match_object_do/1, match_object2_do/1, - misc1_do/1, safe_fixtable_do/1, info_do/1, dups_do/1, heavy_lookup_do/1, - heavy_lookup_element_do/1, member_do/1, otp_5340_do/1, otp_7665_do/1, meta_wb_do/1, - do_heavy_concurrent/1, tab2file2_do/2, exit_large_table_owner_do/2, - types_do/1, sleeper/0, memory_do/1, update_counter_with_default_do/1, - update_counter_table_growth_do/1, - ms_tracee_dummy/1, ms_tracee_dummy/2, ms_tracee_dummy/3, ms_tracee_dummy/4 - ]). - -export([t_select_reverse/1]). -include_lib("common_test/include/ct.hrl"). @@ -228,7 +207,7 @@ memory_check_summary(_Config) -> %% Test that a disappearing bucket during select of a non-fixed table works. t_bucket_disappears(Config) when is_list(Config) -> - repeat_for_opts(t_bucket_disappears_do). + repeat_for_opts(fun t_bucket_disappears_do/1). t_bucket_disappears_do(Opts) -> EtsMem = etsmem(), @@ -396,11 +375,16 @@ ms_tracer_collect(Tracee, Ref, Acc) -> ms_tracee(Parent, CallArgList) -> Parent ! {self(), ready}, receive start -> ok end, - lists:foreach(fun(Args) -> - erlang:apply(?MODULE, ms_tracee_dummy, tuple_to_list(Args)) - end, CallArgList). - - + F = fun({A1}) -> + ms_tracee_dummy(A1); + ({A1,A2}) -> + ms_tracee_dummy(A1, A2); + ({A1,A2,A3}) -> + ms_tracee_dummy(A1, A2, A3); + ({A1,A2,A3,A4}) -> + ms_tracee_dummy(A1, A2, A3, A4) + end, + lists:foreach(F, CallArgList). ms_tracee_dummy(_) -> ok. ms_tracee_dummy(_,_) -> ok. @@ -418,7 +402,7 @@ assert_eq(A,B) -> %% Test ets:repair_continuation/2. t_repair_continuation(Config) when is_list(Config) -> - repeat_for_opts(t_repair_continuation_do). + repeat_for_opts(fun t_repair_continuation_do/1). t_repair_continuation_do(Opts) -> @@ -564,7 +548,8 @@ default(Config) when is_list(Config) -> %% Test that select fails even if nothing can match. select_fail(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(select_fail_do, [all_types,write_concurrency]), + repeat_for_opts(fun select_fail_do/1, + [all_types,write_concurrency]), verify_etsmem(EtsMem). select_fail_do(Opts) -> @@ -594,7 +579,7 @@ select_fail_do(Opts) -> %% Whitebox test of ets:info(X, memory). memory(Config) when is_list(Config) -> ok = chk_normal_tab_struct_size(), - repeat_for_opts(memory_do,[compressed]), + repeat_for_opts(fun memory_do/1, [compressed]), catch erts_debug:set_internal_state(available_internal_state, false). memory_do(Opts) -> @@ -704,12 +689,12 @@ adjust_xmem([_T1,_T2,_T3,_T4], {A0,B0,C0,D0} = _Mem0, EstCnt) -> %% Misc. whitebox tests t_whitebox(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(whitebox_1), - repeat_for_opts(whitebox_1), - repeat_for_opts(whitebox_1), - repeat_for_opts(whitebox_2), - repeat_for_opts(whitebox_2), - repeat_for_opts(whitebox_2), + repeat_for_opts(fun whitebox_1/1), + repeat_for_opts(fun whitebox_1/1), + repeat_for_opts(fun whitebox_1/1), + repeat_for_opts(fun whitebox_2/1), + repeat_for_opts(fun whitebox_2/1), + repeat_for_opts(fun whitebox_2/1), verify_etsmem(EtsMem). whitebox_1(Opts) -> @@ -774,7 +759,7 @@ check_badarg({'EXIT', {badarg, [{M,F,A,_} | _]}}, M, F, Args) -> %% Test ets:delete_all_objects/1. t_delete_all_objects(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(t_delete_all_objects_do), + repeat_for_opts(fun t_delete_all_objects_do/1), verify_etsmem(EtsMem). get_kept_objects(T) -> @@ -808,7 +793,7 @@ t_delete_all_objects_do(Opts) -> %% Test ets:delete_object/2. t_delete_object(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(t_delete_object_do), + repeat_for_opts(fun t_delete_object_do/1), verify_etsmem(EtsMem). t_delete_object_do(Opts) -> @@ -881,7 +866,7 @@ make_init_fun(N) -> %% Test ets:init_table/2. t_init_table(Config) when is_list(Config)-> EtsMem = etsmem(), - repeat_for_opts(t_init_table_do), + repeat_for_opts(fun t_init_table_do/1), verify_etsmem(EtsMem). t_init_table_do(Opts) -> @@ -957,7 +942,7 @@ t_insert_new(Config) when is_list(Config) -> %% Test ets:insert/2 with list of objects. t_insert_list(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(t_insert_list_do), + repeat_for_opts(fun t_insert_list_do/1), verify_etsmem(EtsMem). t_insert_list_do(Opts) -> @@ -1187,7 +1172,7 @@ partly_bound(Config) when is_list(Config) -> end. dont_make_worse() -> - seventyfive_percent_success({?MODULE,dont_make_worse_sub,[]},0,0,10). + seventyfive_percent_success(fun dont_make_worse_sub/0, 0, 0, 10). dont_make_worse_sub() -> T = build_table([a,b],[a,b],15000), @@ -1199,8 +1184,9 @@ dont_make_worse_sub() -> ok. make_better() -> - fifty_percent_success({?MODULE,make_better_sub2,[]},0,0,10), - fifty_percent_success({?MODULE,make_better_sub1,[]},0,0,10). + fifty_percent_success(fun make_better_sub2/0, 0, 0, 10), + fifty_percent_success(fun make_better_sub1/0, 0, 0, 10). + make_better_sub1() -> T = build_table2([a,b],[a,b],15000), T1 = time_match_object(T,{'_',1500,a,a}, [{{1500,a,a},1500,a,a}]), @@ -1485,7 +1471,7 @@ do_random_test() -> %% Ttest various variants of update_element. update_element(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(update_element_opts), + repeat_for_opts(fun update_element_opts/1), verify_etsmem(EtsMem). update_element_opts(Opts) -> @@ -1647,7 +1633,7 @@ update_element_neg_do(T) -> %% test various variants of update_counter. update_counter(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(update_counter_do), + repeat_for_opts(fun update_counter_do/1), verify_etsmem(EtsMem). update_counter_do(Opts) -> @@ -1868,7 +1854,7 @@ evil_update_counter(Config) when is_list(Config) -> ordsets:module_info(), rand:module_info(), - repeat_for_opts(evil_update_counter_do). + repeat_for_opts(fun evil_update_counter_do/1). evil_update_counter_do(Opts) -> EtsMem = etsmem(), @@ -1915,7 +1901,7 @@ evil_counter_1(Iter, T) -> evil_counter_1(Iter-1, T). update_counter_with_default(Config) when is_list(Config) -> - repeat_for_opts(update_counter_with_default_do). + repeat_for_opts(fun update_counter_with_default_do/1). update_counter_with_default_do(Opts) -> T1 = ets_new(a, [set | Opts]), @@ -1953,7 +1939,7 @@ update_counter_with_default_do(Opts) -> ok. update_counter_table_growth(_Config) -> - repeat_for_opts(update_counter_table_growth_do). + repeat_for_opts(fun update_counter_table_growth_do/1). update_counter_table_growth_do(Opts) -> Set = ets_new(b, [set | Opts]), @@ -1964,7 +1950,8 @@ update_counter_table_growth_do(Opts) -> %% Check that a first-next sequence always works on a fixed table. fixtable_next(Config) when is_list(Config) -> - repeat_for_opts(fixtable_next_do, [write_concurrency,all_types]). + repeat_for_opts(fun fixtable_next_do/1, + [write_concurrency,all_types]). fixtable_next_do(Opts) -> EtsMem = etsmem(), @@ -2104,7 +2091,7 @@ write_concurrency(Config) when is_list(Config) -> %% The 'heir' option. heir(Config) when is_list(Config) -> - repeat_for_opts(heir_do). + repeat_for_opts(fun heir_do/1). heir_do(Opts) -> EtsMem = etsmem(), @@ -2244,7 +2231,7 @@ heir_1(HeirData,Mode,Opts) -> %% Test ets:give_way/3. give_away(Config) when is_list(Config) -> - repeat_for_opts(give_away_do). + repeat_for_opts(fun give_away_do/1). give_away_do(Opts) -> T = ets_new(foo,[named_table, private | Opts]), @@ -2325,7 +2312,7 @@ give_away_receiver(T, Giver) -> %% Test ets:setopts/2. setopts(Config) when is_list(Config) -> - repeat_for_opts(setopts_do,[write_concurrency,all_types]). + repeat_for_opts(fun setopts_do/1, [write_concurrency,all_types]). setopts_do(Opts) -> Self = self(), @@ -2475,7 +2462,7 @@ bad_table_call(T,{F,Args,_,{return,Return}}) -> %% Check rename of ets tables. rename(Config) when is_list(Config) -> - repeat_for_opts(rename_do, [write_concurrency, all_types]). + repeat_for_opts(fun rename_do/1, [write_concurrency, all_types]). rename_do(Opts) -> EtsMem = etsmem(), @@ -2490,7 +2477,8 @@ rename_do(Opts) -> %% Check rename of unnamed ets table. rename_unnamed(Config) when is_list(Config) -> - repeat_for_opts(rename_unnamed_do,[write_concurrency,all_types]). + repeat_for_opts(fun rename_unnamed_do/1, + [write_concurrency,all_types]). rename_unnamed_do(Opts) -> EtsMem = etsmem(), @@ -2565,7 +2553,7 @@ evil_create_fixed_tab() -> %% Tests that the return values and errors are equal for set's and %% ordered_set's where applicable. interface_equality(Config) when is_list(Config) -> - repeat_for_opts(interface_equality_do). + repeat_for_opts(fun interface_equality_do/1). interface_equality_do(Opts) -> EtsMem = etsmem(), @@ -2629,7 +2617,7 @@ maybe_sort(Any) -> %% Test match, match_object and match_delete in ordered set's. ordered_match(Config) when is_list(Config)-> - repeat_for_opts(ordered_match_do). + repeat_for_opts(fun ordered_match_do/1). ordered_match_do(Opts) -> EtsMem = etsmem(), @@ -2675,7 +2663,7 @@ ordered_match_do(Opts) -> %% Test basic functionality in ordered_set's. ordered(Config) when is_list(Config) -> - repeat_for_opts(ordered_do). + repeat_for_opts(fun ordered_do/1). ordered_do(Opts) -> EtsMem = etsmem(), @@ -2801,12 +2789,13 @@ keypos2(Config) when is_list(Config) -> %% Privacy check. Check that a named(public/private/protected) table %% cannot be read by the wrong process(es). privacy(Config) when is_list(Config) -> - repeat_for_opts(privacy_do). + repeat_for_opts(fun privacy_do/1). privacy_do(Opts) -> EtsMem = etsmem(), process_flag(trap_exit,true), - Owner = my_spawn_link(?MODULE,privacy_owner,[self(),Opts]), + Parent = self(), + Owner = my_spawn_link(fun() -> privacy_owner(Parent, Opts) end), receive {'EXIT',Owner,Reason} -> exit({privacy_test,Reason}); @@ -2886,7 +2875,7 @@ rotate_tuple(Tuple, N) -> %% Check lookup in an empty table and lookup of a non-existing key. empty(Config) when is_list(Config) -> - repeat_for_opts(empty_do). + repeat_for_opts(fun empty_do/1). empty_do(Opts) -> EtsMem = etsmem(), @@ -2899,7 +2888,7 @@ empty_do(Opts) -> %% Check proper return values for illegal insert operations. badinsert(Config) when is_list(Config) -> - repeat_for_opts(badinsert_do). + repeat_for_opts(fun badinsert_do/1). badinsert_do(Opts) -> EtsMem = etsmem(), @@ -2923,7 +2912,7 @@ badinsert_do(Opts) -> time_lookup(Config) when is_list(Config) -> %% just for timing, really EtsMem = etsmem(), - Values = repeat_for_opts(time_lookup_do), + Values = repeat_for_opts(fun time_lookup_do/1), verify_etsmem(EtsMem), {comment,lists:flatten(io_lib:format( "~p ets lookups/s",[Values]))}. @@ -2957,7 +2946,8 @@ badlookup(Config) when is_list(Config) -> %% Test that lookup returns objects in order of insertion for bag and dbag. lookup_order(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(lookup_order_do, [write_concurrency,[bag,duplicate_bag]]), + repeat_for_opts(fun lookup_order_do/1, + [write_concurrency,[bag,duplicate_bag]]), verify_etsmem(EtsMem), ok. @@ -3048,7 +3038,7 @@ fill_tab(Tab,Val) -> %% OTP-2386. Multiple return elements. lookup_element_mult(Config) when is_list(Config) -> - repeat_for_opts(lookup_element_mult_do). + repeat_for_opts(fun lookup_element_mult_do/1). lookup_element_mult_do(Opts) -> EtsMem = etsmem(), @@ -3086,7 +3076,8 @@ lem_crash_3(T) -> %% Check delete of an element inserted in a `filled' table. delete_elem(Config) when is_list(Config) -> - repeat_for_opts(delete_elem_do, [write_concurrency, all_types]). + repeat_for_opts(fun delete_elem_do/1, + [write_concurrency, all_types]). delete_elem_do(Opts) -> EtsMem = etsmem(), @@ -3103,7 +3094,8 @@ delete_elem_do(Opts) -> %% Check that ets:delete() works and releases the name of the %% deleted table. delete_tab(Config) when is_list(Config) -> - repeat_for_opts(delete_tab_do,[write_concurrency,all_types]). + repeat_for_opts(fun delete_tab_do/1, + [write_concurrency,all_types]). delete_tab_do(Opts) -> Name = foo, @@ -3301,10 +3293,14 @@ exit_large_table_owner(Config) when is_list(Config) -> end, 1) end, EtsMem = etsmem(), - repeat_for_opts({exit_large_table_owner_do,{FEData,Config}}), + repeat_for_opts(fun(Opts) -> + exit_large_table_owner_do(Opts, + FEData, + Config) + end), verify_etsmem(EtsMem). -exit_large_table_owner_do(Opts,{FEData,Config}) -> +exit_large_table_owner_do(Opts, FEData, Config) -> verify_rescheduling_exit(Config, FEData, [named_table | Opts], true, 1, 1), verify_rescheduling_exit(Config, FEData, Opts, false, 1, 1). @@ -3472,7 +3468,8 @@ baddelete(Config) when is_list(Config) -> %% Check that match_delete works. Also tests tab2list function. match_delete(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(match_delete_do,[write_concurrency,all_types]), + repeat_for_opts(fun match_delete_do/1, + [write_concurrency,all_types]), verify_etsmem(EtsMem). match_delete_do(Opts) -> @@ -3489,7 +3486,7 @@ match_delete_do(Opts) -> %% OTP-3005: check match_delete with constant argument. match_delete3(Config) when is_list(Config) -> - repeat_for_opts(match_delete3_do). + repeat_for_opts(fun match_delete3_do/1). match_delete3_do(Opts) -> EtsMem = etsmem(), @@ -3514,7 +3511,7 @@ match_delete3_do(Opts) -> %% Test ets:first/1 & ets:next/2. firstnext(Config) when is_list(Config) -> - repeat_for_opts(firstnext_do). + repeat_for_opts(fun firstnext_do/1). firstnext_do(Opts) -> EtsMem = etsmem(), @@ -3572,7 +3569,7 @@ dyn_lookup(T, K) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% slot(Config) when is_list(Config) -> - repeat_for_opts(slot_do). + repeat_for_opts(fun slot_do/1). slot_do(Opts) -> EtsMem = etsmem(), @@ -3597,7 +3594,7 @@ slot_loop(Tab,SlotNo,EltsSoFar) -> match1(Config) when is_list(Config) -> - repeat_for_opts(match1_do). + repeat_for_opts(fun match1_do/1). match1_do(Opts) -> EtsMem = etsmem(), @@ -3633,7 +3630,7 @@ match1_do(Opts) -> %% Test match with specified keypos bag table. match2(Config) when is_list(Config) -> - repeat_for_opts(match2_do). + repeat_for_opts(fun match2_do/1). match2_do(Opts) -> EtsMem = etsmem(), @@ -3660,7 +3657,7 @@ match2_do(Opts) -> %% Some ets:match_object tests. match_object(Config) when is_list(Config) -> - repeat_for_opts(match_object_do). + repeat_for_opts(fun match_object_do/1). match_object_do(Opts) -> EtsMem = etsmem(), @@ -3760,7 +3757,7 @@ match_object_do(Opts) -> %% Tests that db_match_object does not generate a `badarg' when %% resuming a search with no previous matches. match_object2(Config) when is_list(Config) -> - repeat_for_opts(match_object2_do). + repeat_for_opts(fun match_object2_do/1). match_object2_do(Opts) -> EtsMem = etsmem(), @@ -3796,7 +3793,7 @@ tab2list(Config) when is_list(Config) -> %% Simple general small test. If this fails, ets is in really bad %% shape. misc1(Config) when is_list(Config) -> - repeat_for_opts(misc1_do). + repeat_for_opts(fun misc1_do/1). misc1_do(Opts) -> EtsMem = etsmem(), @@ -3814,7 +3811,7 @@ misc1_do(Opts) -> %% Check the safe_fixtable function. safe_fixtable(Config) when is_list(Config) -> - repeat_for_opts(safe_fixtable_do). + repeat_for_opts(fun safe_fixtable_do/1). safe_fixtable_do(Opts) -> EtsMem = etsmem(), @@ -3872,7 +3869,7 @@ safe_fixtable_do(Opts) -> %% Tests ets:info result for required tuples. info(Config) when is_list(Config) -> - repeat_for_opts(info_do). + repeat_for_opts(fun info_do/1). info_do(Opts) -> EtsMem = etsmem(), @@ -3904,7 +3901,7 @@ info_do(Opts) -> %% Test various duplicate_bags stuff. dups(Config) when is_list(Config) -> - repeat_for_opts(dups_do). + repeat_for_opts(fun dups_do/1). dups_do(Opts) -> EtsMem = etsmem(), @@ -3970,7 +3967,9 @@ tab2file_do(FName, Opts) -> %% Check the ets:tab2file function on a filled set/bag type ets table. tab2file2(Config) when is_list(Config) -> - repeat_for_opts({tab2file2_do,Config}, [[set,bag],compressed]). + repeat_for_opts(fun(Opts) -> + tab2file2_do(Opts, Config) + end, [[set,bag],compressed]). tab2file2_do(Opts, Config) -> EtsMem = etsmem(), @@ -4234,7 +4233,7 @@ make_sub_binary(List, Num) when is_list(List) -> %% Perform multiple lookups for every key in a large table. heavy_lookup(Config) when is_list(Config) -> - repeat_for_opts(heavy_lookup_do). + repeat_for_opts(fun heavy_lookup_do/1). heavy_lookup_do(Opts) -> EtsMem = etsmem(), @@ -4257,7 +4256,7 @@ do_lookup(Tab, N) -> %% Perform multiple lookups for every element in a large table. heavy_lookup_element(Config) when is_list(Config) -> - repeat_for_opts(heavy_lookup_element_do). + repeat_for_opts(fun heavy_lookup_element_do/1). heavy_lookup_element_do(Opts) -> EtsMem = etsmem(), @@ -4285,7 +4284,7 @@ do_lookup_element(Tab, N, M) -> heavy_concurrent(Config) when is_list(Config) -> ct:timetrap({minutes,30}), %% valgrind needs a lot of time - repeat_for_opts(do_heavy_concurrent). + repeat_for_opts(fun do_heavy_concurrent/1). do_heavy_concurrent(Opts) -> Size = 10000, @@ -4370,7 +4369,7 @@ foldr_ordered(Config) when is_list(Config) -> %% Test ets:member BIF. member(Config) when is_list(Config) -> - repeat_for_opts(member_do, [write_concurrency, all_types]). + repeat_for_opts(fun member_do/1, [write_concurrency, all_types]). member_do(Opts) -> EtsMem = etsmem(), @@ -4453,26 +4452,26 @@ time_match(Tab,Match) -> seventyfive_percent_success(_,S,Fa,0) -> true = (S > ((S + Fa) * 0.75)); -seventyfive_percent_success({M,F,A},S,Fa,N) -> - case (catch apply(M,F,A)) of - {'EXIT', _} -> - seventyfive_percent_success({M,F,A},S,Fa+1,N-1); - _ -> - seventyfive_percent_success({M,F,A},S+1,Fa,N-1) +seventyfive_percent_success(F, S, Fa, N) when is_function(F, 0) -> + try F() of + _ -> + seventyfive_percent_success(F, S+1, Fa, N-1) + catch error:_ -> + seventyfive_percent_success(F, S, Fa+1, N-1) end. fifty_percent_success(_,S,Fa,0) -> true = (S > ((S + Fa) * 0.5)); -fifty_percent_success({M,F,A},S,Fa,N) -> - case (catch apply(M,F,A)) of - {'EXIT', _} -> - fifty_percent_success({M,F,A},S,Fa+1,N-1); - _ -> - fifty_percent_success({M,F,A},S+1,Fa,N-1) +fifty_percent_success(F, S, Fa, N) when is_function(F, 0) -> + try F() of + _ -> + fifty_percent_success(F, S+1, Fa, N-1) + catch + error:_ -> + fifty_percent_success(F, S, Fa+1, N-1) end. - create_random_string(0) -> []; @@ -4811,7 +4810,7 @@ otp_6338(Config) when is_list(Config) -> %% Elements could come in the wrong order in a bag if a rehash occurred. otp_5340(Config) when is_list(Config) -> - repeat_for_opts(otp_5340_do). + repeat_for_opts(fun otp_5340_do/1). otp_5340_do(Opts) -> N = 3000, @@ -4847,7 +4846,7 @@ verify2(_Err, _) -> %% delete_object followed by delete on fixed bag failed to delete objects. otp_7665(Config) when is_list(Config) -> - repeat_for_opts(otp_7665_do). + repeat_for_opts(fun otp_7665_do/1). otp_7665_do(Opts) -> Tab = ets_new(otp_7665,[bag | Opts]), @@ -4877,7 +4876,7 @@ otp_7665_act(Tab,Min,Max,DelNr) -> %% Whitebox testing of meta name table hashing. meta_wb(Config) when is_list(Config) -> EtsMem = etsmem(), - repeat_for_opts(meta_wb_do), + repeat_for_opts(fun meta_wb_do/1), verify_etsmem(EtsMem). @@ -5446,7 +5445,7 @@ smp_select_delete(Config) when is_list(Config) -> %% Test different types. types(Config) when is_list(Config) -> init_externals(), - repeat_for_opts(types_do,[[set,ordered_set],compressed]). + repeat_for_opts(fun types_do/1, [[set,ordered_set],compressed]). types_do(Opts) -> EtsMem = etsmem(), @@ -5848,12 +5847,8 @@ log_test_proc(Proc) when is_pid(Proc) -> Proc. my_spawn(Fun) -> log_test_proc(spawn(Fun)). -%%my_spawn(M,F,A) -> log_test_proc(spawn(M,F,A)). -%%my_spawn(N,M,F,A) -> log_test_proc(spawn(N,M,F,A)). my_spawn_link(Fun) -> log_test_proc(spawn_link(Fun)). -my_spawn_link(M,F,A) -> log_test_proc(spawn_link(M,F,A)). -%%my_spawn_link(N,M,F,A) -> log_test_proc(spawn_link(N,M,F,A)). my_spawn_opt(Fun,Opts) -> case spawn_opt(Fun,Opts) of @@ -6096,7 +6091,7 @@ make_port() -> open_port({spawn, "efile"}, [eof]). make_pid() -> - spawn_link(?MODULE, sleeper, []). + spawn_link(fun sleeper/0). sleeper() -> receive after infinity -> ok end. @@ -6232,11 +6227,7 @@ make_unaligned_sub_binary(List) -> repeat_for_opts(F) -> repeat_for_opts(F, [write_concurrency, read_concurrency, compressed]). -repeat_for_opts(F, OptGenList) when is_atom(F) -> - repeat_for_opts(fun(Opts) -> ?MODULE:F(Opts) end, OptGenList); -repeat_for_opts({F,Args}, OptGenList) when is_atom(F) -> - repeat_for_opts(fun(Opts) -> ?MODULE:F(Opts,Args) end, OptGenList); -repeat_for_opts(F, OptGenList) -> +repeat_for_opts(F, OptGenList) when is_function(F, 1) -> repeat_for_opts(F, OptGenList, []). repeat_for_opts(F, [], Acc) -> diff --git a/lib/stdlib/test/ets_tough_SUITE.erl b/lib/stdlib/test/ets_tough_SUITE.erl index 49aba7a529..0abce3200f 100644 --- a/lib/stdlib/test/ets_tough_SUITE.erl +++ b/lib/stdlib/test/ets_tough_SUITE.erl @@ -19,10 +19,15 @@ %% -module(ets_tough_SUITE). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, - init_per_group/2,end_per_group/2,ex1/1]). --export([init/1,terminate/2,handle_call/3,handle_info/2]). + init_per_group/2,end_per_group/2, + ex1/1]). -export([init_per_testcase/2, end_per_testcase/2]). --compile([export_all]). + +%% gen_server behavior. +-behavior(gen_server). +-export([init/1,terminate/2,handle_call/3,handle_cast/2, + handle_info/2,code_change/3]). + -include_lib("common_test/include/ct.hrl"). suite() -> @@ -235,33 +240,6 @@ random_element(T) -> I = rand:uniform(tuple_size(T)), element(I,T). -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -show_table(N) -> - FileName = ["etsdump.",integer_to_list(N)], - case file:open(FileName,read) of - {ok,Fd} -> - show_entries(Fd); - _ -> - error - end. - -show_entries(Fd) -> - case phys_read_len(Fd) of - {ok,Len} -> - case phys_read_entry(Fd,Len) of - {ok,ok} -> - ok; - {ok,{Key,Val}} -> - io:format("~w\n",[{Key,Val}]), - show_entries(Fd); - _ -> - error - end; - _ -> - error - end. - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -378,20 +356,6 @@ dget_class(ServerPid,Class,Condition) -> derase_class(ServerPid,Class) -> gen_server:call(ServerPid,{handle_delete_class,Class}, infinity). -%%% dmodify(ServerPid,Application) -> ok -%%% -%%% Applies a function on every instance in the database. -%%% The user provided function must always return one of the -%%% terms {ok,NewItem}, true, or false. -%%% Aug 96, this is only used to reset all timestamp values -%%% in the database. -%%% The function is supplied as Application = {Mod, Fun, ExtraArgs}, -%%% where the instance will be prepended to ExtraArgs before each -%%% call is made. - -dmodify(ServerPid,Application) -> - gen_server:call(ServerPid,{handle_dmodify,Application}, infinity). - %%% ddump_first(ServerPid,DumpDir) -> {dump_more,Ticket} | already_dumping %%% %%% Starts dumping the database. This call redirects all database updates @@ -643,9 +607,15 @@ handle_call(stop,_From,Admin) -> ?ets_delete(Admin), % Make sure table is gone before reply is sent. {stop, normal, ok, []}. +handle_cast(_Req, Admin) -> + {noreply, Admin}. + handle_info({'EXIT',_Pid,_Reason},Admin) -> {stop,normal,Admin}. +code_change(_OldVsn, StateData, _Extra) -> + {ok, StateData}. + handle_delete(Class, Key, Admin) -> handle_call({handle_delete,Class,Key},from,Admin). diff --git a/lib/stdlib/test/filename_SUITE.erl b/lib/stdlib/test/filename_SUITE.erl index 54066021fb..dc3daa56c1 100644 --- a/lib/stdlib/test/filename_SUITE.erl +++ b/lib/stdlib/test/filename_SUITE.erl @@ -29,6 +29,7 @@ dirname_bin/1, extension_bin/1, join_bin/1, t_nativename_bin/1]). -export([pathtype_bin/1,rootname_bin/1,split_bin/1]). -export([t_basedir_api/1, t_basedir_xdg/1, t_basedir_windows/1]). +-export([safe_relative_path/1]). -include_lib("common_test/include/ct.hrl"). @@ -41,7 +42,8 @@ all() -> find_src, absname_bin, absname_bin_2, {group,p}, - t_basedir_xdg, t_basedir_windows]. + t_basedir_xdg, t_basedir_windows, + safe_relative_path]. groups() -> [{p, [parallel], @@ -770,6 +772,71 @@ t_nativename_bin(Config) when is_list(Config) -> filename:nativename(<<"/usr/tmp//arne/">>) end. +safe_relative_path(Config) -> + PrivDir = proplists:get_value(priv_dir, Config), + Root = filename:join(PrivDir, ?FUNCTION_NAME), + ok = file:make_dir(Root), + ok = file:set_cwd(Root), + + ok = file:make_dir("a"), + ok = file:set_cwd("a"), + ok = file:make_dir("b"), + ok = file:set_cwd("b"), + ok = file:make_dir("c"), + + ok = file:set_cwd(Root), + + "a" = test_srp("a"), + "a/b" = test_srp("a/b"), + "a/b" = test_srp("a/./b"), + "a/b" = test_srp("a/./b/."), + + "" = test_srp("a/.."), + "" = test_srp("a/./.."), + "" = test_srp("a/../."), + "a" = test_srp("a/b/.."), + "a" = test_srp("a/../a"), + "a" = test_srp("a/../a/../a"), + "a/b/c" = test_srp("a/../a/b/c"), + + unsafe = test_srp("a/../.."), + unsafe = test_srp("a/../../.."), + unsafe = test_srp("a/./../.."), + unsafe = test_srp("a/././../../.."), + unsafe = test_srp("a/b/././../../.."), + + unsafe = test_srp(PrivDir), %Absolute path. + + ok. + +test_srp(RelPath) -> + Res = do_test_srp(RelPath), + Res = case do_test_srp(list_to_binary(RelPath)) of + Bin when is_binary(Bin) -> + binary_to_list(Bin); + Other -> + Other + end. + +do_test_srp(RelPath) -> + {ok,Root} = file:get_cwd(), + ok = file:set_cwd(RelPath), + {ok,Cwd} = file:get_cwd(), + ok = file:set_cwd(Root), + case filename:safe_relative_path(RelPath) of + unsafe -> + true = length(Cwd) < length(Root), + unsafe; + "" -> + ""; + SafeRelPath -> + ok = file:set_cwd(SafeRelPath), + {ok,Cwd} = file:get_cwd(), + true = length(Cwd) >= length(Root), + ok = file:set_cwd(Root), + SafeRelPath + end. + %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% basedirs t_basedir_api(Config) when is_list(Config) -> diff --git a/lib/stdlib/test/gen_statem_SUITE.erl b/lib/stdlib/test/gen_statem_SUITE.erl index 8f2ba0cab2..ac27c9fc79 100644 --- a/lib/stdlib/test/gen_statem_SUITE.erl +++ b/lib/stdlib/test/gen_statem_SUITE.erl @@ -38,7 +38,7 @@ all() -> {group, abnormal}, {group, abnormal_handle_event}, shutdown, stop_and_reply, state_enter, event_order, - state_timeout, code_change, + state_timeout, event_types, code_change, {group, sys}, hibernate, enter_loop]. @@ -600,15 +600,26 @@ state_enter(_Config) -> (internal, Prev, N) -> Self ! {internal,start,Prev,N}, {keep_state,N + 1}; + ({call,From}, repeat, N) -> + {repeat_state,N + 1, + [{reply,From,{repeat,start,N}}]}; ({call,From}, echo, N) -> - {next_state,wait,N + 1,{reply,From,{echo,start,N}}}; + {next_state,wait,N + 1, + {reply,From,{echo,start,N}}}; ({call,From}, {stop,Reason}, N) -> - {stop_and_reply,Reason,[{reply,From,{stop,N}}],N + 1} + {stop_and_reply,Reason, + [{reply,From,{stop,N}}],N + 1} end, wait => - fun (enter, Prev, N) -> + fun (enter, Prev, N) when N < 5 -> + {repeat_state,N + 1, + {reply,{Self,N},{enter,Prev}}}; + (enter, Prev, N) -> Self ! {enter,wait,Prev,N}, {keep_state,N + 1}; + ({call,From}, repeat, N) -> + {repeat_state_and_data, + [{reply,From,{repeat,wait,N}}]}; ({call,From}, echo, N) -> {next_state,start,N + 1, [{next_event,internal,wait}, @@ -620,11 +631,15 @@ state_enter(_Config) -> [{enter,start,start,1}] = flush(), {echo,start,2} = gen_statem:call(STM, echo), - [{enter,wait,start,3}] = flush(), - {wait,[4|_]} = sys:get_state(STM), - {echo,wait,4} = gen_statem:call(STM, echo), - [{enter,start,wait,5},{internal,start,wait,6}] = flush(), - {stop,7} = gen_statem:call(STM, {stop,bye}), + [{3,{enter,start}},{4,{enter,start}},{enter,wait,start,5}] = flush(), + {wait,[6|_]} = sys:get_state(STM), + {repeat,wait,6} = gen_statem:call(STM, repeat), + [{enter,wait,wait,6}] = flush(), + {echo,wait,7} = gen_statem:call(STM, echo), + [{enter,start,wait,8},{internal,start,wait,9}] = flush(), + {repeat,start,10} = gen_statem:call(STM, repeat), + [{enter,start,start,11}] = flush(), + {stop,12} = gen_statem:call(STM, {stop,bye}), [{'EXIT',STM,bye}] = flush(), {noproc,_} = @@ -801,6 +816,74 @@ state_timeout(_Config) -> +%% Test that all event types can be sent with {next_event,EventType,_} +event_types(_Config) -> + process_flag(trap_exit, true), + + Machine = + %% Abusing the internal format of From... + #{init => + fun () -> + {ok, start, undefined} + end, + start => + fun ({call,_} = Call, Req, undefined) -> + {next_state, state1, undefined, + [{next_event,internal,1}, + {next_event,state_timeout,2}, + {next_event,timeout,3}, + {next_event,info,4}, + {next_event,cast,5}, + {next_event,Call,Req}]} + end, + state1 => + fun (internal, 1, undefined) -> + {next_state, state2, undefined} + end, + state2 => + fun (state_timeout, 2, undefined) -> + {next_state, state3, undefined} + end, + state3 => + fun (timeout, 3, undefined) -> + {next_state, state4, undefined} + end, + state4 => + fun (info, 4, undefined) -> + {next_state, state5, undefined} + end, + state5 => + fun (cast, 5, undefined) -> + {next_state, state6, undefined} + end, + state6 => + fun ({call,From}, stop, undefined) -> + {stop_and_reply, shutdown, + [{reply,From,stopped}]} + end}, + {ok,STM} = + gen_statem:start_link( + ?MODULE, {map_statem,Machine,[]}, [{debug,[trace]}]), + + stopped = gen_statem:call(STM, stop), + receive + {'EXIT',STM,shutdown} -> + ok + after 500 -> + ct:fail(did_not_stop) + end, + + {noproc,_} = + ?EXPECT_FAILURE(gen_statem:call(STM, hej), Reason), + case flush() of + [] -> + ok; + Other2 -> + ct:fail({unexpected,Other2}) + end. + + + sys1(Config) -> {ok,Pid} = gen_statem:start(?MODULE, start_arg(Config, []), []), {status, Pid, {module,gen_statem}, _} = sys:get_status(Pid), @@ -1722,6 +1805,10 @@ handle_event( {keep_state,[NewData|Machine]}; {keep_state,NewData,Ops} -> {keep_state,[NewData|Machine],Ops}; + {repeat_state,NewData} -> + {repeat_state,[NewData|Machine]}; + {repeat_state,NewData,Ops} -> + {repeat_state,[NewData|Machine],Ops}; Other -> Other end; diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl index 7d48cbc97c..d546e8fad2 100644 --- a/lib/stdlib/test/io_SUITE.erl +++ b/lib/stdlib/test/io_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1999-2016. All Rights Reserved. +%% Copyright Ericsson AB 1999-2017. 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. @@ -30,7 +30,7 @@ io_lib_print_binary_depth_one/1, otp_10302/1, otp_10755/1, otp_10836/1, io_lib_width_too_small/1, io_with_huge_message_queue/1, format_string/1, - maps/1, coverage/1]). + maps/1, coverage/1, otp_14178_unicode_atoms/1, otp_14175/1]). -export([pretty/2]). @@ -61,7 +61,7 @@ all() -> printable_range, bad_printable_range, io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836, io_lib_width_too_small, io_with_huge_message_queue, - format_string, maps, coverage]. + format_string, maps, coverage, otp_14178_unicode_atoms, otp_14175]. %% Error cases for output. error_1(Config) when is_list(Config) -> @@ -415,13 +415,13 @@ otp_6354(Config) when is_list(Config) -> bt(<<"#rrrrr{\n" " f1 = 1,\n" " f2 = #rrrrr{f1 = a,f2 = b,f3 = c},\n" - " f3 = \n" + " f3 =\n" " #rrrrr{\n" " f1 = h,f2 = i,\n" - " f3 = \n" + " f3 =\n" " #rrrrr{\n" " f1 = aa,\n" - " f2 = \n" + " f2 =\n" " #rrrrr{\n" " f1 = #rrrrr{f1 = a,f2 = b,f3 = c},\n" " f2 = 2,f3 = 3},\n" @@ -431,17 +431,17 @@ otp_6354(Config) when is_list(Config) -> 2,3},bb}}}, -1)), bt(<<"#d{aaaaaaaaaaaaaaaaaaaa = 1,\n" - " bbbbbbbbbbbbbbbbbbbb = \n" + " bbbbbbbbbbbbbbbbbbbb =\n" " #d{aaaaaaaaaaaaaaaaaaaa = a,bbbbbbbbbbbbbbbbbbbb = b,\n" " cccccccccccccccccccc = c,dddddddddddddddddddd = d,\n" " eeeeeeeeeeeeeeeeeeee = e},\n" " cccccccccccccccccccc = 3,\n" - " dddddddddddddddddddd = \n" + " dddddddddddddddddddd =\n" " #d{aaaaaaaaaaaaaaaaaaaa = h,bbbbbbbbbbbbbbbbbbbb = i,\n" - " cccccccccccccccccccc = \n" + " cccccccccccccccccccc =\n" " #d{aaaaaaaaaaaaaaaaaaaa = aa," "bbbbbbbbbbbbbbbbbbbb = bb,\n" - " cccccccccccccccccccc = \n" + " cccccccccccccccccccc =\n" " #d{aaaaaaaaaaaaaaaaaaaa = 1," "bbbbbbbbbbbbbbbbbbbb = 2,\n" " cccccccccccccccccccc = 3," @@ -534,21 +534,21 @@ otp_6354(Config) when is_list(Config) -> p({A,{A,{A,{A,{A,{A,{A, {g,{h,{i,{j,{k,{l,{m,{n,{o,{a}}}}}}}}}}}}}}}}}, 100)), bt(<<"#c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" - " f1 = \n" + " f1 =\n" " #c{\n" " f1 = #c{f1 = #c{f1 = #c{f1 = a," "f2 = b},f2 = b},f2 = b},\n" @@ -564,13 +564,13 @@ otp_6354(Config) when is_list(Config) -> p({c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,a,b},b},b},b},b},b}, b},b},b},b},b},b}, -1)), bt(<<"#rrrrr{\n" - " f1 = \n" + " f1 =\n" " #rrrrr{\n" - " f1 = \n" + " f1 =\n" " #rrrrr{\n" - " f1 = \n" + " f1 =\n" " #rrrrr{\n" - " f1 = \n" + " f1 =\n" " {rrrrr,{rrrrr,a,#rrrrr{f1 = {rrrrr,1,2},f2 = a," "f3 = b}},b},\n" " f2 = {rrrrr,c,d},\n" @@ -2106,3 +2106,221 @@ coverage(_Config) -> io:format("~s\n", [S2]), ok. + +%% Test UTF-8 atoms. +otp_14178_unicode_atoms(_Config) -> + "atom" = fmt("~ts", ['atom']), + "кирилли́ческий атом" = fmt("~ts", ['кирилли́ческий атом']), + [16#10FFFF] = fmt("~ts", ['\x{10FFFF}']), + + %% ~s must not accept code points greater than 255. + bad_io_lib_format("~s", ['\x{100}']), + bad_io_lib_format("~s", ['кирилли́ческий атом']), + + ok. + +bad_io_lib_format(F, S) -> + try io_lib:format(F, S) of + _ -> + ct:fail({should_fail,F,S}) + catch + error:badarg -> + ok + end. + +otp_14175(_Config) -> + "..." = p(#{}, 0), + "#{}" = p(#{}, 1), + "#{...}" = p(#{a => 1}, 1), + "#{#{} => a}" = p(#{#{} => a}, 2), + "#{a => 1,...}" = p(#{a => 1, b => 2}, 2), + "#{a => 1,b => 2}" = p(#{a => 1, b => 2}, -1), + + M = #{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2, + kccccccccccccccccccc => v3,kddddddddddddddddddd => v4, + keeeeeeeeeeeeeeeeeee => v5}, + "#{...}" = p(M, 1), + mt("#{kaaaaaaaaaaaaaaaaaaaa => v1,...}", p(M, 2)), + mt("#{kaaaaaaaaaaaaaaaaaaaa => 1,kbbbbbbbbbbbbbbbbbbbb => 2,...}", + p(M, 3)), + + mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n" + " kccccccccccccccccccc => v3,...}", p(M, 4)), + + mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n" + " kccccccccccccccccccc => v3,kddddddddddddddddddd => v4,...}", + p(M, 5)), + + mt("#{kaaaaaaaaaaaaaaaaaaa => v1,kbbbbbbbbbbbbbbbbbbb => v2,\n" + " kccccccccccccccccccc => v3,kddddddddddddddddddd => v4,\n" + " keeeeeeeeeeeeeeeeeee => v5}", p(M, 6)), + + weak("#{aaaaaaaaaaaaaaaaaaa => 1,bbbbbbbbbbbbbbbbbbbb => 2,\n" + " cccccccccccccccccccc => {3},\n" + " dddddddddddddddddddd => 4,eeeeeeeeeeeeeeeeeeee => 5}", + p(#{aaaaaaaaaaaaaaaaaaa => 1,bbbbbbbbbbbbbbbbbbbb => 2, + cccccccccccccccccccc => {3}, + dddddddddddddddddddd => 4,eeeeeeeeeeeeeeeeeeee => 5}, -1)), + + M2 = #{dddddddddddddddddddd => {1}, {aaaaaaaaaaaaaaaaaaaa} => 2, + {bbbbbbbbbbbbbbbbbbbb} => 3,{cccccccccccccccccccc} => 4, + {eeeeeeeeeeeeeeeeeeee} => 5}, + "#{...}" = p(M2, 1), + weak("#{dddddddddddddddddddd => {...},...}", p(M2, 2)), + weak("#{dddddddddddddddddddd => {1},{...} => 2,...}", p(M2, 3)), + + weak("#{dddddddddddddddddddd => {1},\n" + " {aaaaaaaaaaaaaaaaaaaa} => 2,\n" + " {...} => 3,...}", p(M2, 4)), + + weak("#{dddddddddddddddddddd => {1},\n" + " {aaaaaaaaaaaaaaaaaaaa} => 2,\n" + " {bbbbbbbbbbbbbbbbbbbb} => 3,\n" + " {...} => 4,...}", p(M2, 5)), + + weak("#{dddddddddddddddddddd => {1},\n" + " {aaaaaaaaaaaaaaaaaaaa} => 2,\n" + " {bbbbbbbbbbbbbbbbbbbb} => 3,\n" + " {cccccccccccccccccccc} => 4,\n" + " {...} => 5}", p(M2, 6)), + + weak("#{dddddddddddddddddddd => {1},\n" + " {aaaaaaaaaaaaaaaaaaaa} => 2,\n" + " {bbbbbbbbbbbbbbbbbbbb} => 3,\n" + " {cccccccccccccccccccc} => 4,\n" + " {eeeeeeeeeeeeeeeeeeee} => 5}", p(M2, 7)), + + M3 = #{kaaaaaaaaaaaaaaaaaaa => vuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu, + kbbbbbbbbbbbbbbbbbbb => vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv, + kccccccccccccccccccc => vxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, + kddddddddddddddddddd => vyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy, + keeeeeeeeeeeeeeeeeee => vzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz}, + + mt("#{aaaaaaaaaaaaaaaaaaaa =>\n" + " uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu,\n" + " bbbbbbbbbbbbbbbbbbbb =>\n" + " vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv,\n" + " cccccccccccccccccccc =>\n" + " xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,\n" + " dddddddddddddddddddd =>\n" + " yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy,\n" + " eeeeeeeeeeeeeeeeeeee =>\n" + " zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz}", p(M3, -1)), + + R4 = {c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,{c,a,b},b},b},b},b},b}, + b},b},b},b},b},b}, + M4 = #{aaaaaaaaaaaaaaaaaaaa => R4, + bbbbbbbbbbbbbbbbbbbb => R4, + cccccccccccccccccccc => R4, + dddddddddddddddddddd => R4, + eeeeeeeeeeeeeeeeeeee => R4}, + + weak("#{aaaaaaaaaaaaaaaaaaaa =>\n" + " #c{f1 = #c{f1 = #c{...},f2 = b},f2 = b},\n" + " bbbbbbbbbbbbbbbbbbbb => #c{f1 = #c{f1 = {...},...},f2 = b},\n" + " cccccccccccccccccccc => #c{f1 = #c{...},f2 = b},\n" + " dddddddddddddddddddd => #c{f1 = {...},...},\n" + " eeeeeeeeeeeeeeeeeeee => #c{...}}", p(M4, 7)), + + M5 = #{aaaaaaaaaaaaaaaaaaaa => R4}, + mt("#{aaaaaaaaaaaaaaaaaaaa =>\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 =\n" + " #c{\n" + " f1 = #c{f1 = #c{f1 = #c{f1 = a,f2 = b},f2 = b}," + "f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b},\n" + " f2 = b}}", p(M5, -1)), + ok. + +%% Just check number of newlines and dots ('...'). +-define(WEAK, true). + +-ifdef(WEAK). + +weak(S, R) -> + (nl(S) =:= nl(R) andalso + dots(S) =:= dots(S)). + +nl(S) -> + [C || C <- S, C =:= $\n]. + +dots(S) -> + [C || C <- S, C =:= $\.]. + +-else. % WEAK + +weak(S, R) -> + mt(S, R). + +-endif. % WEAK + +%% If EXACT is defined: mt() matches strings exactly. +%% +%% if EXACT is not defined: do not match the strings exactly, but +%% compare them assuming that all map keys and all map values are +%% equal (by assuming all map keys and all map values have the same +%% length and begin with $k and $v respectively). + +%-define(EXACT, true). + +-ifdef(EXACT). + +mt(S, R) -> + S =:= R. + +-else. % EXACT + +mt(S, R) -> + anon(S) =:= anon(R). + +anon(S) -> + {ok, Ts0, _} = erl_scan:string(S, 1, [text]), + Ts = anon1(Ts0), + text(Ts). + +anon1([]) -> []; +anon1([{atom,Anno,Atom}=T|Ts]) -> + case erl_anno:text(Anno) of + "k" ++ _ -> + NewAnno = erl_anno:set_text("key", Anno), + [{atom,NewAnno,Atom}|anon1(Ts)]; + "v" ++ _ -> + NewAnno = erl_anno:set_text("val", Anno), + [{atom,NewAnno,Atom}|anon1(Ts)]; + _ -> + [T|anon1(Ts)] + end; +anon1([T|Ts]) -> + [T|anon1(Ts)]. + +text(Ts) -> + lists:append(text1(Ts)). + +text1([]) -> []; +text1([T|Ts]) -> + Anno = element(2, T), + [erl_anno:text(Anno) | text1(Ts)]. + +-endif. % EXACT diff --git a/lib/stdlib/test/lists_SUITE.erl b/lib/stdlib/test/lists_SUITE.erl index 531e97e8d6..5f2d8f0f4e 100644 --- a/lib/stdlib/test/lists_SUITE.erl +++ b/lib/stdlib/test/lists_SUITE.erl @@ -121,7 +121,7 @@ groups() -> {zip, [parallel], [zip_unzip, zip_unzip3, zipwith, zipwith3]}, {misc, [parallel], [reverse, member, dropwhile, takewhile, filter_partition, suffix, subtract, join, - hof]} + hof, droplast]} ]. init_per_suite(Config) -> diff --git a/lib/stdlib/test/qlc_SUITE.erl b/lib/stdlib/test/qlc_SUITE.erl index c08e138ad3..2b5d52287e 100644 --- a/lib/stdlib/test/qlc_SUITE.erl +++ b/lib/stdlib/test/qlc_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2004-2016. All Rights Reserved. +%% Copyright Ericsson AB 2004-2017. 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. @@ -886,11 +886,12 @@ eval_unique(Config) when is_list(Config) -> [a] = qlc:e(Q2, {unique_all, true}) ">>, - <<"Q = qlc:q([SQV || SQV <- qlc:q([X || X <- [1,2,1]],unique)], + <<"Q = qlc:q([SQV || SQV <- qlc:q([X || X <- [1,2,1,#{a => 1}]], + unique)], unique), {call,_,_,[{lc,_,{var,_,'X'},[{generate,_,{var,_,'X'},_}]},_]} = qlc:info(Q, [{format,abstract_code},unique_all]), - [1,2] = qlc:e(Q)">>, + [1,2,#{a := 1}] = qlc:e(Q)">>, <<"Q = qlc:q([X || X <- [1,2,1]]), {call,_,_,[{lc,_,{var,_,'X'},[{generate,_,{var,_,'X'},_}]},_]} = @@ -2637,7 +2638,16 @@ info(Config) when is_list(Config) -> {cons, _, _, _}]}, {nil,_}}]}]} = i(QH, {format, abstract_code}), [{5},{6}] = qlc:e(QH), - [{4},{5},{6}] = qlc:e(F(3))">> + [{4},{5},{6}] = qlc:e(F(3))">>, + + <<"Fun = fun ?MODULE:i/2, + L = [{#{k => #{v => Fun}}, Fun}], + H = qlc:q([Q || Q <- L, Q =:= {#{k => #{v => Fun}}, Fun}]), + L = qlc:e(H), + {call,_,_,[{lc,_,{var,_,'Q'}, + [{generate,_,_,_}, + {op,_,_,_,_}]}]} = + qlc:info(H, [{format,abstract_code}])">> ], run(Config, Ts), diff --git a/lib/stdlib/test/random_iolist.erl b/lib/stdlib/test/random_iolist.erl index 555f063e0a..b62cf5b82b 100644 --- a/lib/stdlib/test/random_iolist.erl +++ b/lib/stdlib/test/random_iolist.erl @@ -24,17 +24,13 @@ -module(random_iolist). --export([run/3, run2/3, standard_seed/0, compare/3, compare2/3, +-export([run/3, standard_seed/0, compare/3, random_iolist/1]). run(Iter,Fun1,Fun2) -> standard_seed(), compare(Iter,Fun1,Fun2). -run2(Iter,Fun1,Fun2) -> - standard_seed(), - compare2(Iter,Fun1,Fun2). - random_byte() -> rand:uniform(256) - 1. @@ -150,16 +146,6 @@ do_comp(List,F1,F2) -> _ -> true end. - -do_comp(List,List2,F1,F2) -> - X = F1(List,List2), - Y = F2(List,List2), - case X =:= Y of - false -> - exit({not_matching,List,List2,X,Y}); - _ -> - true - end. compare(0,Fun1,Fun2) -> do_comp(<<>>,Fun1,Fun2), @@ -172,25 +158,3 @@ compare(N,Fun1,Fun2) -> L = random_iolist(N), do_comp(L,Fun1,Fun2), compare(N-1,Fun1,Fun2). - -compare2(0,Fun1,Fun2) -> - L = random_iolist(100), - do_comp(<<>>,L,Fun1,Fun2), - do_comp(L,<<>>,Fun1,Fun2), - do_comp(<<>>,<<>>,Fun1,Fun2), - do_comp([],L,Fun1,Fun2), - do_comp(L,[],Fun1,Fun2), - do_comp([],[],Fun1,Fun2), - do_comp([[]|<<>>],L,Fun1,Fun2), - do_comp(L,[[]|<<>>],Fun1,Fun2), - do_comp([[]|<<>>],[[]|<<>>],Fun1,Fun2), - do_comp([<<>>,[]|<<>>],L,Fun1,Fun2), - do_comp(L,[<<>>,[]|<<>>],Fun1,Fun2), - do_comp([<<>>,[]|<<>>],[<<>>,[]|<<>>],Fun1,Fun2), - true; - -compare2(N,Fun1,Fun2) -> - L = random_iolist(N), - L2 = random_iolist(N), - do_comp(L,L2,Fun1,Fun2), - compare2(N-1,Fun1,Fun2). diff --git a/lib/stdlib/test/random_unicode_list.erl b/lib/stdlib/test/random_unicode_list.erl index 8db2fa8b56..2eeb28113d 100644 --- a/lib/stdlib/test/random_unicode_list.erl +++ b/lib/stdlib/test/random_unicode_list.erl @@ -24,7 +24,7 @@ -module(random_unicode_list). --export([run/3, run/4, run2/3, standard_seed/0, compare/4, compare2/3, +-export([run/3, run/4, standard_seed/0, compare/4, random_unicode_list/2]). run(I,F1,F2) -> @@ -33,10 +33,6 @@ run(Iter,Fun1,Fun2,Enc) -> standard_seed(), compare(Iter,Fun1,Fun2,Enc). -run2(Iter,Fun1,Fun2) -> - standard_seed(), - compare2(Iter,Fun1,Fun2). - int_to_utf8(I) when I =< 16#7F -> <<I>>; int_to_utf8(I) when I =< 16#7FF -> @@ -225,16 +221,6 @@ do_comp(List,F1,F2) -> _ -> true end. - -do_comp(List,List2,F1,F2) -> - X = F1(List,List2), - Y = F2(List,List2), - case X =:= Y of - false -> - exit({not_matching,List,List2,X,Y}); - _ -> - true - end. compare(0,Fun1,Fun2,_Enc) -> do_comp(<<>>,Fun1,Fun2), @@ -247,25 +233,3 @@ compare(N,Fun1,Fun2,Enc) -> L = random_unicode_list(N,Enc), do_comp(L,Fun1,Fun2), compare(N-1,Fun1,Fun2,Enc). - -compare2(0,Fun1,Fun2) -> - L = random_unicode_list(100,utf8), - do_comp(<<>>,L,Fun1,Fun2), - do_comp(L,<<>>,Fun1,Fun2), - do_comp(<<>>,<<>>,Fun1,Fun2), - do_comp([],L,Fun1,Fun2), - do_comp(L,[],Fun1,Fun2), - do_comp([],[],Fun1,Fun2), - do_comp([[]|<<>>],L,Fun1,Fun2), - do_comp(L,[[]|<<>>],Fun1,Fun2), - do_comp([[]|<<>>],[[]|<<>>],Fun1,Fun2), - do_comp([<<>>,[]|<<>>],L,Fun1,Fun2), - do_comp(L,[<<>>,[]|<<>>],Fun1,Fun2), - do_comp([<<>>,[]|<<>>],[<<>>,[]|<<>>],Fun1,Fun2), - true; - -compare2(N,Fun1,Fun2) -> - L = random_unicode_list(N,utf8), - L2 = random_unicode_list(N,utf8), - do_comp(L,L2,Fun1,Fun2), - compare2(N-1,Fun1,Fun2). diff --git a/lib/stdlib/test/re_testoutput1_replacement_test.erl b/lib/stdlib/test/re_testoutput1_replacement_test.erl index a40800d760..563e0001e4 100644 --- a/lib/stdlib/test/re_testoutput1_replacement_test.erl +++ b/lib/stdlib/test/re_testoutput1_replacement_test.erl @@ -18,7 +18,7 @@ %% %CopyrightEnd% %% -module(re_testoutput1_replacement_test). --compile(export_all). +-export([run/0]). -compile(no_native). %% This file is generated by running run_pcre_tests:gen_repl_test("re_SUITE_data/testoutput1") run() -> diff --git a/lib/stdlib/test/re_testoutput1_split_test.erl b/lib/stdlib/test/re_testoutput1_split_test.erl index 02987971fa..b39cb53a55 100644 --- a/lib/stdlib/test/re_testoutput1_split_test.erl +++ b/lib/stdlib/test/re_testoutput1_split_test.erl @@ -18,7 +18,7 @@ %% %CopyrightEnd% %% -module(re_testoutput1_split_test). --compile(export_all). +-export([run/0]). -compile(no_native). %% This file is generated by running run_pcre_tests:gen_split_test("re_SUITE_data/testoutput1") join([]) -> []; diff --git a/lib/stdlib/test/run_pcre_tests.erl b/lib/stdlib/test/run_pcre_tests.erl index ae56db59d6..b62674d6e0 100644 --- a/lib/stdlib/test/run_pcre_tests.erl +++ b/lib/stdlib/test/run_pcre_tests.erl @@ -18,8 +18,7 @@ %% %CopyrightEnd% %% -module(run_pcre_tests). - --compile(export_all). +-export([test/1,gen_split_test/1,gen_repl_test/1]). test(RootDir) -> put(verbose,false), @@ -119,49 +118,6 @@ test([{RE0,Line,Options0,Tests}|T],PreCompile,XMode,REAsList) -> end end. -loopexec(_,_,X,Y,_,_) when X > Y -> - {match,[]}; -loopexec(P,Chal,X,Y,Unicode,Xopt) -> - case re:run(Chal,P,[{offset,X}]++Xopt) of - nomatch -> - {match,[]}; - {match,[{A,B}|More]} -> - {match,Rest} = - case B>0 of - true -> - loopexec(P,Chal,A+B,Y,Unicode,Xopt); - false -> - {match,M} = case re:run(Chal,P,[{offset,X},notempty,anchored]++Xopt) of - nomatch -> - {match,[]}; - {match,Other} -> - {match,fixup(Chal,Other,0)} - end, - NewA = forward(Chal,A,1,Unicode), - {match,MM} = loopexec(P,Chal,NewA,Y,Unicode,Xopt), - {match,M ++ MM} - end, - {match,fixup(Chal,[{A,B}|More],0)++Rest} - end. - -forward(_Chal,A,0,_) -> - A; -forward(_Chal,A,N,false) -> - A+N; -forward(Chal,A,N,true) -> - <<_:A/binary,Tl/binary>> = Chal, - Forw = case Tl of - <<1:1,1:1,0:1,_:5,_/binary>> -> - 2; - <<1:1,1:1,1:1,0:1,_:4,_/binary>> -> - 3; - <<1:1,1:1,1:1,1:1,0:1,_:3,_/binary>> -> - 4; - _ -> - 1 - end, - forward(Chal,A+Forw,N-1,true). - contains_eightbit(<<>>) -> false; contains_eightbit(<<X:8,_/binary>>) when X >= 128 -> @@ -201,23 +157,6 @@ clean_duplicates([X|T],L) -> end. -global_fixup(_,nomatch) -> - nomatch; -global_fixup(P,{match,M}) -> - {match,lists:flatten(global_fixup2(P,M))}. - -global_fixup2(_,[]) -> - []; -global_fixup2(P,[H|T]) -> - [gfixup_one(P,0,H)|global_fixup2(P,T)]. - -gfixup_one(_,_,[]) -> - []; -gfixup_one(P,I,[{Start,Len}|T]) -> - <<_:Start/binary,R:Len/binary,_/binary>> = P, - [{I,R}|gfixup_one(P,I+1,T)]. - - press([]) -> []; press([H|T]) -> @@ -981,7 +920,7 @@ gen_split_test(OneFile) -> ErlFileName = ErlModule++".erl", {ok,F}= file:open(ErlFileName,[write]), io:format(F,"-module(~s).~n",[ErlModule]), - io:format(F,"-compile(export_all).~n",[]), + io:format(F,"-export([run/0]).~n",[]), io:format(F,"-compile(no_native).~n",[]), io:format(F,"%% This file is generated by running ~w:gen_split_test(~p)~n", [?MODULE,OneFile]), @@ -1024,7 +963,7 @@ dumponesplit(F,{RE,Line,O,TS}) -> "$x =~~ s/\\\\/\\\\\\\\/g; $x =~~ s/\\\"/\\\\\"/g; " "print \" <<\\\"$x\\\">> = " "iolist_to_binary(join(re:split(\\\"~s\\\"," - "\\\"~s\\\",~p))), \\n\";'~n", + "\\\"~s\\\",~p))),\\n\";'~n", [zsafe(safe(RE)), SSS, ysafe(safe(Str)), @@ -1035,7 +974,7 @@ dumponesplit(F,{RE,Line,O,TS}) -> "$x =~~ s/\\\\/\\\\\\\\/g; $x =~~ s/\\\"/\\\\\"/g; " "print \" <<\\\"$x\\\">> = " "iolist_to_binary(join(re:split(\\\"~s\\\"," - "\\\"~s\\\",~p))), \\n\";'~n", + "\\\"~s\\\",~p))),\\n\";'~n", [zsafe(safe(RE)), SSS, ysafe(safe(Str)), @@ -1046,7 +985,7 @@ dumponesplit(F,{RE,Line,O,TS}) -> "$x =~~ s/\\\\/\\\\\\\\/g; $x =~~ s/\\\"/\\\\\"/g; " "print \" <<\\\"$x\\\">> = " "iolist_to_binary(join(re:split(\\\"~s\\\"," - "\\\"~s\\\",~p))), \\n\";'~n", + "\\\"~s\\\",~p))),\\n\";'~n", [zsafe(safe(RE)), SSS, ysafe(safe(Str)), @@ -1071,7 +1010,7 @@ gen_repl_test(OneFile) -> ErlFileName = ErlModule++".erl", {ok,F}= file:open(ErlFileName,[write]), io:format(F,"-module(~s).~n",[ErlModule]), - io:format(F,"-compile(export_all).~n",[]), + io:format(F,"-export([run/0]).~n",[]), io:format(F,"-compile(no_native).~n",[]), io:format(F,"%% This file is generated by running ~w:gen_repl_test(~p)~n", [?MODULE,OneFile]), diff --git a/lib/stdlib/test/sofs_SUITE.erl b/lib/stdlib/test/sofs_SUITE.erl index 13c12ad2f2..f67bf16f0f 100644 --- a/lib/stdlib/test/sofs_SUITE.erl +++ b/lib/stdlib/test/sofs_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2001-2016. All Rights Reserved. +%% Copyright Ericsson AB 2001-2017. 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. @@ -1837,11 +1837,8 @@ digraph(Conf) when is_list(Conf) -> ok. digraph_fail(ExitReason, Fail) -> - {'EXIT', {ExitReason, [{sofs,family_to_digraph,A,_}|_]}} = Fail, - case {test_server:is_native(sofs),A} of - {false,[_,_]} -> ok; - {true,2} -> ok - end. + {'EXIT', {ExitReason, [{sofs,family_to_digraph,2,_}|_]}} = Fail, + ok. constant_function(Conf) when is_list(Conf) -> E = empty_set(), diff --git a/lib/stdlib/test/tar_SUITE.erl b/lib/stdlib/test/tar_SUITE.erl index 6f3979bb77..d6b6d3f80c 100644 --- a/lib/stdlib/test/tar_SUITE.erl +++ b/lib/stdlib/test/tar_SUITE.erl @@ -22,9 +22,10 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, borderline/1, atomic/1, long_names/1, create_long_names/1, bad_tar/1, errors/1, extract_from_binary/1, - extract_from_binary_compressed/1, + extract_from_binary_compressed/1, extract_filtered/1, extract_from_open_file/1, symlinks/1, open_add_close/1, cooked_compressed/1, - memory/1,unicode/1]). + memory/1,unicode/1,read_other_implementations/1, + sparse/1, init/1]). -include_lib("common_test/include/ct.hrl"). -include_lib("kernel/include/file.hrl"). @@ -35,7 +36,10 @@ all() -> [borderline, atomic, long_names, create_long_names, bad_tar, errors, extract_from_binary, extract_from_binary_compressed, extract_from_open_file, - symlinks, open_add_close, cooked_compressed, memory, unicode]. + extract_filtered, + symlinks, open_add_close, cooked_compressed, memory, unicode, + read_other_implementations, + sparse,init]. groups() -> []. @@ -84,17 +88,30 @@ borderline(Config) when is_list(Config) -> ok. borderline_test(Size, TempDir) -> - Archive = filename:join(TempDir, "ar_"++integer_to_list(Size)++".tar"), - Name = filename:join(TempDir, "file_"++integer_to_list(Size)), io:format("Testing size ~p", [Size]), + borderline_test(Size, TempDir, true), + borderline_test(Size, TempDir, false), + ok. + +borderline_test(Size, TempDir, IsUstar) -> + Prefix = case IsUstar of + true -> + "file_"; + false -> + lists:duplicate(100, $f) ++ "ile_" + end, + SizeList = integer_to_list(Size), + Archive = filename:join(TempDir, "ar_"++ SizeList ++".tar"), + Name = filename:join(TempDir, Prefix++SizeList), %% Create a file and archive it. X0 = erlang:monotonic_time(), - file:write_file(Name, random_byte_list(X0, Size)), + ok = file:write_file(Name, random_byte_list(X0, Size)), ok = erl_tar:create(Archive, [Name]), ok = file:delete(Name), %% Verify listing and extracting. + IsUstar = is_ustar(Archive), {ok, [Name]} = erl_tar:table(Archive), ok = erl_tar:extract(Archive, [verbose]), @@ -103,7 +120,12 @@ borderline_test(Size, TempDir) -> true = match_byte_list(X0, binary_to_list(Bin)), %% Verify that Unix tar can read it. - tar_tf(Archive, Name), + case IsUstar of + true -> + tar_tf(Archive, Name); + false -> + ok + end, ok. @@ -336,6 +358,7 @@ create_long_names() -> ok = erl_tar:tt(TarName), %% Extract and verify. + true = is_ustar(TarName), ExtractDir = "extract_dir", ok = file:make_dir(ExtractDir), ok = erl_tar:extract(TarName, [{cwd,ExtractDir}]), @@ -357,7 +380,7 @@ make_dirs([], Dir) -> %% Try erl_tar:table/2 and erl_tar:extract/2 on some corrupted tar files. bad_tar(Config) when is_list(Config) -> try_bad("bad_checksum", bad_header, Config), - try_bad("bad_octal", bad_header, Config), + try_bad("bad_octal", invalid_tar_checksum, Config), try_bad("bad_too_short", eof, Config), try_bad("bad_even_shorter", eof, Config), ok. @@ -370,8 +393,10 @@ try_bad(Name0, Reason, Config) -> Name = Name0 ++ ".tar", io:format("~nTrying ~s", [Name]), Full = filename:join(DataDir, Name), - Opts = [verbose, {cwd, PrivDir}], + Dest = filename:join(PrivDir, Name0), + Opts = [verbose, {cwd, Dest}], Expected = {error, Reason}, + io:fwrite("Expected: ~p\n", [Expected]), case {erl_tar:table(Full, Opts), erl_tar:extract(Full, Opts)} of {Expected, Expected} -> io:format("Result: ~p", [Expected]), @@ -493,6 +518,27 @@ extract_from_binary_compressed(Config) when is_list(Config) -> ok. +%% Test extracting a tar archive from a binary. +extract_filtered(Config) when is_list(Config) -> + DataDir = proplists:get_value(data_dir, Config), + PrivDir = proplists:get_value(priv_dir, Config), + Long = filename:join(DataDir, "no_fancy_stuff.tar"), + ExtractDir = filename:join(PrivDir, "extract_from_binary"), + ok = file:make_dir(ExtractDir), + + ok = erl_tar:extract(Long, [{cwd,ExtractDir},{files,["no_fancy_stuff/EPLICENCE"]}]), + + %% Verify. + Dir = filename:join(ExtractDir, "no_fancy_stuff"), + true = filelib:is_dir(Dir), + false = filelib:is_file(filename:join(Dir, "a_dir_list")), + true = filelib:is_file(filename:join(Dir, "EPLICENCE")), + + %% Clean up. + delete_files([ExtractDir]), + + ok. + %% Test extracting a tar archive from an open file. extract_from_open_file(Config) when is_list(Config) -> DataDir = proplists:get_value(data_dir, Config), @@ -573,6 +619,7 @@ symlinks(Dir, BadSymlink, PointsTo) -> ok = file:write_file(AFile, ALine), ok = file:make_symlink(AFile, GoodSymlink), ok = erl_tar:create(Tar, [BadSymlink, GoodSymlink, AFile], [verbose]), + true = is_ustar(Tar), %% List contents of tar file. @@ -581,6 +628,7 @@ symlinks(Dir, BadSymlink, PointsTo) -> %% Also create another archive with the dereference flag. ok = erl_tar:create(DerefTar, [AFile, GoodSymlink], [dereference, verbose]), + true = is_ustar(DerefTar), %% Extract files to a new directory. @@ -619,13 +667,50 @@ long_symlink(Dir) -> ok = file:set_cwd(Dir), AFile = "long_symlink", - FarTooLong = "/tmp/aarrghh/this/path/is/far/longer/than/one/hundred/characters/which/is/the/maximum/number/of/characters/allowed", - ok = file:make_symlink(FarTooLong, AFile), - {error,Error} = erl_tar:create(Tar, [AFile], [verbose]), - io:format("Error: ~s\n", [erl_tar:format_error(Error)]), - {FarTooLong,symbolic_link_too_long} = Error, + RequiresPAX = "/tmp/aarrghh/this/path/is/far/longer/than/one/hundred/characters/which/is/the/maximum/number/of/characters/allowed", + ok = file:make_symlink(RequiresPAX, AFile), + ok = erl_tar:create(Tar, [AFile], [verbose]), + false = is_ustar(Tar), + NewDir = filename:join(Dir, "extracted"), + _ = file:make_dir(NewDir), + ok = erl_tar:extract(Tar, [{cwd, NewDir}, verbose]), + ok = file:set_cwd(NewDir), + {ok, #file_info{type=symlink}} = file:read_link_info(AFile), + {ok, RequiresPAX} = file:read_link(AFile), + ok. + +init(Config) when is_list(Config) -> + PrivDir = proplists:get_value(priv_dir, Config), + ok = file:set_cwd(PrivDir), + Dir = filename:join(PrivDir, "init"), + ok = file:make_dir(Dir), + + [{FileOne,_,_}|_] = oac_files(), + TarOne = filename:join(Dir, "archive1.tar"), + {ok,Fd} = file:open(TarOne, [write]), + + %% If the arity of the fun is wrong, badarg should be returned + {error, badarg} = erl_tar:init(Fd, write, fun file_op_bad/1), + + %% Otherwise we should be good to go + {ok, Tar} = erl_tar:init(Fd, write, fun file_op/2), + ok = erl_tar:add(Tar, FileOne, []), + ok = erl_tar:close(Tar), + {ok, [FileOne]} = erl_tar:table(TarOne), ok. +file_op_bad(_) -> + throw({error, should_never_be_called}). + +file_op(write, {Fd, Data}) -> + file:write(Fd, Data); +file_op(position, {Fd, Pos}) -> + file:position(Fd, Pos); +file_op(read2, {Fd, Size}) -> + file:read(Fd, Size); +file_op(close, Fd) -> + file:close(Fd). + open_add_close(Config) when is_list(Config) -> PrivDir = proplists:get_value(priv_dir, Config), ok = file:set_cwd(PrivDir), @@ -643,17 +728,26 @@ open_add_close(Config) when is_list(Config) -> TarOne = filename:join(Dir, "archive1.tar"), {ok,AD} = erl_tar:open(TarOne, [write]), ok = erl_tar:add(AD, FileOne, []), - ok = erl_tar:add(AD, FileTwo, "second file", []), - ok = erl_tar:add(AD, FileThree, [verbose]), + + %% Add with {NameInArchive,Name} + ok = erl_tar:add(AD, {"second file", FileTwo}, []), + + %% Add with {binary, Bin} + {ok,FileThreeBin} = file:read_file(FileThree), + ok = erl_tar:add(AD, {FileThree, FileThreeBin}, [verbose]), + + %% Add with Name ok = erl_tar:add(AD, FileThree, "chunked", [{chunks,11411},verbose]), ok = erl_tar:add(AD, ADir, [verbose]), ok = erl_tar:add(AD, AnotherDir, [verbose]), ok = erl_tar:close(AD), + true = is_ustar(TarOne), ok = erl_tar:t(TarOne), ok = erl_tar:tt(TarOne), - {ok,[FileOne,"second file",FileThree,"chunked",ADir,SomeContent]} = erl_tar:table(TarOne), + Expected = {ok,[FileOne,"second file",FileThree,"chunked",ADir,SomeContent]}, + Expected = erl_tar:table(TarOne), delete_files(["oac_file","oac_small","oac_big",Dir,AnotherDir,ADir]), @@ -718,6 +812,41 @@ memory(Config) when is_list(Config) -> ok = delete_files([Name1,Name2]), ok. +read_other_implementations(Config) when is_list(Config) -> + DataDir = proplists:get_value(data_dir, Config), + Files = ["v7.tar", "gnu.tar", "bsd.tar", + "star.tar", "pax_mtime.tar"], + do_read_other_implementations(Files, DataDir). + +do_read_other_implementations([], _DataDir) -> + ok; +do_read_other_implementations([File|Rest], DataDir) -> + io:format("~nTrying ~s", [File]), + Full = filename:join(DataDir, File), + {ok, _} = erl_tar:table(Full), + {ok, _} = erl_tar:extract(Full, [memory]), + do_read_other_implementations(Rest, DataDir). + + +%% Test handling of sparse files +sparse(Config) when is_list(Config) -> + DataDir = proplists:get_value(data_dir, Config), + PrivDir = proplists:get_value(priv_dir, Config), + Sparse01Empty = "sparse01_empty.tar", + Sparse01 = "sparse01.tar", + Sparse10Empty = "sparse10_empty.tar", + Sparse10 = "sparse10.tar", + do_sparse([Sparse01Empty, Sparse01, Sparse10Empty, Sparse10], DataDir, PrivDir). + +do_sparse([], _DataDir, _PrivDir) -> + ok; +do_sparse([Name|Rest], DataDir, PrivDir) -> + io:format("~nTrying sparse file ~s", [Name]), + Full = filename:join(DataDir, Name), + {ok, [_]} = erl_tar:table(Full), + {ok, _} = erl_tar:extract(Full, [memory]), + do_sparse(Rest, DataDir, PrivDir). + %% Test filenames with characters outside the US ASCII range. unicode(Config) when is_list(Config) -> run_unicode_node(Config, "+fnu"), @@ -753,6 +882,9 @@ do_unicode(PrivDir) -> Names = lists:sort(unicode_create_files()), Tar = "unicöde.tar", ok = erl_tar:create(Tar, ["unicöde"], []), + + %% Unicode filenames require PAX format. + false = is_ustar(Tar), {ok,Names0} = erl_tar:table(Tar, []), Names = lists:sort(Names0), _ = [ok = file:delete(Name) || Name <- Names], @@ -850,3 +982,15 @@ start_node(Name, Args) -> ct:log("Node ~p started~n", [Node]), Node end. + +%% Test that the given tar file is a plain USTAR archive, +%% without any PAX extensions. +is_ustar(File) -> + {ok,Bin} = file:read_file(File), + <<_:257/binary,"ustar",0,_/binary>> = Bin, + <<_:156/binary,Type:8,_/binary>> = Bin, + case Type of + $x -> false; + $g -> false; + _ -> true + end. diff --git a/lib/stdlib/test/tar_SUITE_data/bsd.tar b/lib/stdlib/test/tar_SUITE_data/bsd.tar Binary files differnew file mode 100644 index 0000000000..8c31864be0 --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/bsd.tar diff --git a/lib/stdlib/test/tar_SUITE_data/gnu.tar b/lib/stdlib/test/tar_SUITE_data/gnu.tar Binary files differnew file mode 100644 index 0000000000..60268065c1 --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/gnu.tar diff --git a/lib/stdlib/test/tar_SUITE_data/pax_mtime.tar b/lib/stdlib/test/tar_SUITE_data/pax_mtime.tar Binary files differnew file mode 100644 index 0000000000..1b6e80ffac --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/pax_mtime.tar diff --git a/lib/stdlib/test/tar_SUITE_data/sparse00.tar b/lib/stdlib/test/tar_SUITE_data/sparse00.tar Binary files differnew file mode 100644 index 0000000000..61a04de90b --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/sparse00.tar diff --git a/lib/stdlib/test/tar_SUITE_data/sparse01.tar b/lib/stdlib/test/tar_SUITE_data/sparse01.tar Binary files differnew file mode 100644 index 0000000000..61a04de90b --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/sparse01.tar diff --git a/lib/stdlib/test/tar_SUITE_data/sparse01_empty.tar b/lib/stdlib/test/tar_SUITE_data/sparse01_empty.tar Binary files differnew file mode 100644 index 0000000000..efa6d060f4 --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/sparse01_empty.tar diff --git a/lib/stdlib/test/tar_SUITE_data/sparse10.tar b/lib/stdlib/test/tar_SUITE_data/sparse10.tar Binary files differnew file mode 100644 index 0000000000..61a04de90b --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/sparse10.tar diff --git a/lib/stdlib/test/tar_SUITE_data/sparse10_empty.tar b/lib/stdlib/test/tar_SUITE_data/sparse10_empty.tar Binary files differnew file mode 100644 index 0000000000..efa6d060f4 --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/sparse10_empty.tar diff --git a/lib/stdlib/test/tar_SUITE_data/star.tar b/lib/stdlib/test/tar_SUITE_data/star.tar Binary files differnew file mode 100644 index 0000000000..b0631e3b13 --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/star.tar diff --git a/lib/stdlib/test/tar_SUITE_data/v7.tar b/lib/stdlib/test/tar_SUITE_data/v7.tar Binary files differnew file mode 100644 index 0000000000..9918e006bb --- /dev/null +++ b/lib/stdlib/test/tar_SUITE_data/v7.tar diff --git a/lib/stdlib/test/zip_SUITE.erl b/lib/stdlib/test/zip_SUITE.erl index 7d90795c9e..f0feda217a 100644 --- a/lib/stdlib/test/zip_SUITE.erl +++ b/lib/stdlib/test/zip_SUITE.erl @@ -27,7 +27,7 @@ openzip_api/1, zip_api/1, open_leak/1, unzip_jar/1, unzip_traversal_exploit/1, compress_control/1, - foldl/1]). + foldl/1,fd_leak/1]). -include_lib("common_test/include/ct.hrl"). -include_lib("kernel/include/file.hrl"). @@ -40,7 +40,7 @@ all() -> unzip_to_binary, zip_to_binary, unzip_options, zip_options, list_dir_options, aliases, openzip_api, zip_api, open_leak, unzip_jar, compress_control, foldl, - unzip_traversal_exploit]. + unzip_traversal_exploit,fd_leak]. groups() -> []. @@ -882,3 +882,35 @@ foldl(Config) -> {error, enoent} = zip:foldl(ZipFun, [], File), ok. + +fd_leak(Config) -> + ok = file:set_cwd(proplists:get_value(priv_dir, Config)), + DataDir = proplists:get_value(data_dir, Config), + Name = filename:join(DataDir, "bad_file_header.zip"), + BadExtract = fun() -> + {error,bad_file_header} = zip:extract(Name), + ok + end, + do_fd_leak(BadExtract, 1), + + BadCreate = fun() -> + {error,enoent} = zip:zip("failed.zip", + ["none"]), + ok + end, + do_fd_leak(BadCreate, 1), + + ok. + +do_fd_leak(_Bad, 10000) -> + ok; +do_fd_leak(Bad, N) -> + try Bad() of + ok -> + do_fd_leak(Bad, N + 1) + catch + C:R -> + Stk = erlang:get_stacktrace(), + io:format("Bad error after ~p attempts\n", [N]), + erlang:raise(C, R, Stk) + end. |