%% %% %CopyrightBegin% %% %% Copyright Ericsson AB 1997-2011. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in %% compliance with the License. You should have received a copy of the %% Erlang Public License along with this software. If not, it can be %% retrieved online at http://www.erlang.org/. %% %% Software distributed under the License is distributed on an "AS IS" %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See %% the License for the specific language governing rights and limitations %% under the License. %% %% %CopyrightEnd% %% -module(binary_SUITE). -compile({nowarn_deprecated_function, {erlang,hash,2}}). %% Tests binaries and the BIFs: %% list_to_binary/1 %% iolist_to_binary/1 %% list_to_bitstring/1 %% binary_to_list/1 %% binary_to_list/3 %% binary_to_term/1 %% binary_to_term/2 %% bitstring_to_list/1 %% term_to_binary/1 %% erlang:external_size/1 %% size(Binary) %% iolist_size/1 %% split_binary/2 %% hash(Binary, N) %% phash(Binary, N) %% phash2(Binary, N) %% -include_lib("test_server/include/test_server.hrl"). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, init_per_testcase/2, end_per_testcase/2, copy_terms/1, conversions/1, deep_lists/1, deep_bitstr_lists/1, bad_list_to_binary/1, bad_binary_to_list/1, t_split_binary/1, bad_split/1, terms/1, terms_float/1, external_size/1, t_iolist_size/1, t_hash/1, bad_size/1, bad_term_to_binary/1, bad_binary_to_term_2/1,safe_binary_to_term2/1, bad_binary_to_term/1, bad_terms/1, more_bad_terms/1, otp_5484/1,otp_5933/1, ordering/1,unaligned_order/1,gc_test/1, bit_sized_binary_sizes/1, otp_6817/1,deep/1,obsolete_funs/1,robustness/1,otp_8117/1, otp_8180/1]). %% Internal exports. -export([sleeper/0]). suite() -> [{ct_hooks,[ts_install_cth]}, {timetrap,{minutes,2}}]. all() -> [copy_terms, conversions, deep_lists, deep_bitstr_lists, t_split_binary, bad_split, bad_list_to_binary, bad_binary_to_list, terms, terms_float, external_size, t_iolist_size, bad_binary_to_term_2, safe_binary_to_term2, bad_binary_to_term, bad_terms, t_hash, bad_size, bad_term_to_binary, more_bad_terms, otp_5484, otp_5933, ordering, unaligned_order, gc_test, bit_sized_binary_sizes, otp_6817, otp_8117, deep, obsolete_funs, robustness, otp_8180]. groups() -> []. init_per_suite(Config) -> Config. end_per_suite(_Config) -> ok. init_per_group(_GroupName, Config) -> Config. end_per_group(_GroupName, Config) -> Config. init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) -> Config. end_per_testcase(_Func, _Config) -> ok. -define(heap_binary_size, 64). copy_terms(Config) when is_list(Config) -> Self = self(), ?line Pid = spawn_link(fun() -> copy_server(Self) end), F = fun(Term) -> Pid ! Term, receive Term -> ok; Other -> io:format("Sent: ~P\nGot back:~P", [Term,12,Other,12]), ?t:fail(bad_term) end end, ?line test_terms(F), ok. copy_server(Parent) -> receive Term -> Parent ! Term, copy_server(Parent) end. %% Tests list_to_binary/1, binary_to_list/1 and size/1, %% using flat lists. conversions(suite) -> []; conversions(Config) when is_list(Config) -> ?line test_bin([]), ?line test_bin([1]), ?line test_bin([1, 2]), ?line test_bin([1, 2, 3]), ?line test_bin(lists:seq(0, ?heap_binary_size)), ?line test_bin(lists:seq(0, ?heap_binary_size+1)), ?line test_bin(lists:seq(0, 255)), ?line test_bin(lists:duplicate(50000, $@)), %% Binary in list. List = [1,2,3,4,5], ?line B1 = make_sub_binary(list_to_binary(List)), ?line 5 = size(B1), ?line 5 = size(make_unaligned_sub_binary(B1)), ?line 40 = bit_size(B1), ?line 40 = bit_size(make_unaligned_sub_binary(B1)), ?line B2 = list_to_binary([42,B1,19]), ?line B2 = list_to_binary([42,make_unaligned_sub_binary(B1),19]), ?line B2 = iolist_to_binary(B2), ?line B2 = iolist_to_binary(make_unaligned_sub_binary(B2)), ?line 7 = size(B2), ?line 7 = size(make_sub_binary(B2)), ?line 56 = bit_size(B2), ?line 56 = bit_size(make_sub_binary(B2)), ?line [42,1,2,3,4,5,19] = binary_to_list(B2), ?line [42,1,2,3,4,5,19] = binary_to_list(make_sub_binary(B2)), ?line [42,1,2,3,4,5,19] = binary_to_list(make_unaligned_sub_binary(B2)), ?line [42,1,2,3,4,5,19] = bitstring_to_list(B2), ?line [42,1,2,3,4,5,19] = bitstring_to_list(make_sub_binary(B2)), ?line [42,1,2,3,4,5,19] = bitstring_to_list(make_unaligned_sub_binary(B2)), ok. test_bin(List) -> ?line Size = length(List), ?line Bin = list_to_binary(List), ?line Bin = iolist_to_binary(List), ?line Bin = list_to_bitstring(List), ?line Size = iolist_size(List), ?line Size = iolist_size(Bin), ?line Size = iolist_size(make_unaligned_sub_binary(Bin)), ?line Size = size(Bin), ?line Size = size(make_sub_binary(Bin)), ?line Size = size(make_unaligned_sub_binary(Bin)), ?line List = binary_to_list(Bin), ?line List = binary_to_list(make_sub_binary(Bin)), ?line List = binary_to_list(make_unaligned_sub_binary(Bin)), ?line List = bitstring_to_list(Bin), ?line List = bitstring_to_list(make_unaligned_sub_binary(Bin)). %% Tests list_to_binary/1, iolist_to_binary/1, list_to_bitstr/1, binary_to_list/1,3, %% bitstr_to_list/1, and size/1, using deep lists. deep_lists(Config) when is_list(Config) -> ?line test_deep_list(["abc"]), ?line test_deep_list([[12,13,[123,15]]]), ?line test_deep_list([[12,13,[lists:seq(0, 255), []]]]), ok. test_deep_list(List) -> ?line FlatList = lists:flatten(List), ?line Size = length(FlatList), ?line Bin = list_to_binary(List), ?line Bin = iolist_to_binary(List), ?line Bin = iolist_to_binary(Bin), ?line Bin = list_to_bitstring(List), ?line Size = size(Bin), ?line Size = iolist_size(List), ?line Size = iolist_size(FlatList), ?line Size = iolist_size(Bin), ?line Bitsize = bit_size(Bin), ?line Bitsize = 8*Size, ?line FlatList = binary_to_list(Bin), ?line FlatList = bitstring_to_list(Bin), io:format("testing plain binary..."), ?line t_binary_to_list_3(FlatList, Bin, 1, Size), io:format("testing unaligned sub binary..."), ?line t_binary_to_list_3(FlatList, make_unaligned_sub_binary(Bin), 1, Size). t_binary_to_list_3(List, Bin, From, To) -> ?line going_up(List, Bin, From, To), ?line going_down(List, Bin, From, To), ?line going_center(List, Bin, From, To). going_up(List, Bin, From, To) when From =< To -> ?line List = binary_to_list(Bin, From, To), ?line going_up(tl(List), Bin, From+1, To); going_up(_List, _Bin, From, To) when From > To -> ok. going_down(List, Bin, From, To) when To > 0-> ?line compare(List, binary_to_list(Bin, From, To), To-From+1), ?line going_down(List, Bin, From, To-1); going_down(_List, _Bin, _From, _To) -> ok. going_center(List, Bin, From, To) when From >= To -> ?line compare(List, binary_to_list(Bin, From, To), To-From+1), ?line going_center(tl(List), Bin, From+1, To-1); going_center(_List, _Bin, _From, _To) -> ok. compare([X|Rest1], [X|Rest2], Left) when Left > 0 -> ?line compare(Rest1, Rest2, Left-1); compare([_X|_], [_Y|_], _Left) -> ?line test_server:fail(); compare(_List, [], 0) -> ok. deep_bitstr_lists(Config) when is_list(Config) -> ?line {<<7:3>>,[<<7:3>>]} = test_deep_bitstr([<<7:3>>]), ?line {<<42,5:3>>=Bin,[42,<<5:3>>]=List} = test_deep_bitstr([42,<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([42|<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([<<42,5:3>>]), ?line {Bin,List} = test_deep_bitstr([<<1:3>>,<<10:5>>|<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([<<1:3>>,<<10:5>>,<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([[<<1:3>>,<<10:5>>],[],<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([[[<<1:3>>]|<<10:5>>],[],<<5:3>>]), ?line {Bin,List} = test_deep_bitstr([[<<0:1>>,<<0:1>>,[],<<1:1>>,<<10:5>>], <<1:1>>,<<0:1>>,<<1:1>>]), ok. test_deep_bitstr(List) -> %%?line {'EXIT',{badarg,_}} = list_to_binary(List), Bin = list_to_bitstring(List), {Bin,bitstring_to_list(Bin)}. bad_list_to_binary(suite) -> []; bad_list_to_binary(Config) when is_list(Config) -> ?line test_bad_bin(atom), ?line test_bad_bin(42), ?line test_bad_bin([1|2]), ?line test_bad_bin([256]), ?line test_bad_bin([255, [256]]), ?line test_bad_bin([-1]), ?line test_bad_bin([atom_in_list]), ?line test_bad_bin([[<<8>>]|bad_tail]), {'EXIT',{badarg,_}} = (catch list_to_binary(id(<<1,2,3>>))), {'EXIT',{badarg,_}} = (catch list_to_binary(id([<<42:7>>]))), {'EXIT',{badarg,_}} = (catch list_to_bitstring(id(<<1,2,3>>))), %% Funs used to be implemented as a type of binary internally. ?line test_bad_bin(fun(X, Y) -> X*Y end), ?line test_bad_bin([1,fun(X) -> X + 1 end,2|fun() -> 0 end]), ?line test_bad_bin([fun(X) -> X + 1 end]), %% Test iolists that do not fit in the address space. %% Unfortunately, it would be too slow to test in a 64-bit emulator. case erlang:system_info(wordsize) of 4 -> huge_iolists(); _ -> ok end. huge_iolists() -> FourGigs = 1 bsl 32, ?line Sizes = [FourGigs+N || N <- lists:seq(0, 64)] ++ [1 bsl N || N <- lists:seq(33, 37)], ?line Base = <<0:(1 bsl 20)/unit:8>>, [begin L = build_iolist(Sz, Base), ?line {'EXIT',{system_limit,_}} = (catch list_to_binary([L])), ?line {'EXIT',{system_limit,_}} = (catch list_to_bitstring([L])), ?line {'EXIT',{system_limit,_}} = (catch binary:list_to_bin([L])), ?line {'EXIT',{system_limit,_}} = (catch iolist_to_binary(L)) end || Sz <- Sizes], ok. test_bad_bin(List) -> {'EXIT',{badarg,_}} = (catch list_to_binary(List)), {'EXIT',{badarg,_}} = (catch iolist_to_binary(List)), {'EXIT',{badarg,_}} = (catch list_to_bitstring(List)), {'EXIT',{badarg,_}} = (catch iolist_size(List)). bad_binary_to_list(doc) -> "Tries binary_to_list/1,3 with bad arguments."; bad_binary_to_list(Config) when is_list(Config) -> ?line bad_bin_to_list(fun(X) -> X * 42 end), GoodBin = list_to_binary(lists:seq(1, 10)), ?line bad_bin_to_list(fun(X) -> X * 44 end, 1, 2), ?line bad_bin_to_list(GoodBin, 0, 1), ?line bad_bin_to_list(GoodBin, 2, 1), ?line bad_bin_to_list(GoodBin, 11, 11), {'EXIT',{badarg,_}} = (catch binary_to_list(id(<<42:7>>))), ok. bad_bin_to_list(BadBin) -> {'EXIT',{badarg,_}} = (catch binary_to_list(BadBin)), {'EXIT',{badarg,_}} = (catch bitstring_to_list(BadBin)). bad_bin_to_list(Bin, First, Last) -> {'EXIT',{badarg,_}} = (catch binary_to_list(Bin, First, Last)). %% Tries to split a binary at all possible positions. t_split_binary(suite) -> []; t_split_binary(Config) when is_list(Config) -> ?line L = lists:seq(0, ?heap_binary_size-5), %Heap binary. ?line B = list_to_binary(L), ?line split(L, B, size(B)), %% Sub binary of heap binary. ?line split(L, make_sub_binary(B), size(B)), {X,_Y} = split_binary(B, size(B) div 2), ?line split(binary_to_list(X), X, size(X)), %% Unaligned sub binary of heap binary. ?line split(L, make_unaligned_sub_binary(B), size(B)), {X,_Y} = split_binary(B, size(B) div 2), ?line split(binary_to_list(X), X, size(X)), %% Reference-counted binary. ?line L2 = lists:seq(0, ?heap_binary_size+1), ?line B2 = list_to_binary(L2), ?line split(L2, B2, size(B2)), %% Sub binary of reference-counted binary. ?line split(L2, make_sub_binary(B2), size(B2)), {X2,_Y2} = split_binary(B2, size(B2) div 2), ?line split(binary_to_list(X2), X2, size(X2)), %% Unaligned sub binary of reference-counted binary. ?line split(L2, make_unaligned_sub_binary(B2), size(B2)), {X2,_Y2} = split_binary(B2, size(B2) div 2), ?line split(binary_to_list(X2), X2, size(X2)), ok. split(L, B, Pos) when Pos > 0 -> ?line {B1, B2} = split_binary(B, Pos), ?line B1 = list_to_binary(lists:sublist(L, 1, Pos)), ?line B2 = list_to_binary(lists:nthtail(Pos, L)), ?line split(L, B, Pos-1); split(_L, _B, 0) -> ok. bad_split(doc) -> "Tries split_binary/2 with bad arguments."; bad_split(suite) -> []; bad_split(Config) when is_list(Config) -> GoodBin = list_to_binary([1,2,3]), ?line bad_split(GoodBin, -1), ?line bad_split(GoodBin, 4), ?line bad_split(GoodBin, a), %% Funs are a kind of binaries. ?line bad_split(fun(_X) -> 1 end, 1), ok. bad_split(Bin, Pos) -> {'EXIT',{badarg,_}} = (catch split_binary(Bin, Pos)). t_hash(doc) -> "Test hash/2 with different type of binaries."; t_hash(Config) when is_list(Config) -> test_hash([]), test_hash([253]), test_hash(lists:seq(1, ?heap_binary_size)), test_hash(lists:seq(1, ?heap_binary_size+1)), test_hash([X rem 256 || X <- lists:seq(1, 312)]), ok. test_hash(List) -> Bin = list_to_binary(List), Sbin = make_sub_binary(List), Unaligned = make_unaligned_sub_binary(Sbin), ?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:hash/2), ?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:phash/2), ?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:phash2/2). test_hash_1(Bin, Sbin, Unaligned, Hash) when is_function(Hash, 2) -> N = 65535, case {Hash(Bin, N),Hash(Sbin, N),Hash(Unaligned, N)} of {H,H,H} -> ok; {H1,H2,H3} -> io:format("Different hash values: ~p, ~p, ~p\n", [H1,H2,H3]), ?t:fail() end. bad_size(doc) -> "Try bad arguments to size/1."; bad_size(suite) -> []; bad_size(Config) when is_list(Config) -> ?line {'EXIT',{badarg,_}} = (catch size(fun(X) -> X + 33 end)), ok. bad_term_to_binary(Config) when is_list(Config) -> T = id({a,b,c}), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, not_a_list)), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [blurf])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,-1}])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,10}])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,cucumber}])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed}])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{version,1}|bad_tail])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{minor_version,-1}])), ?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{minor_version,x}])), ok. %% Tests binary_to_term/1 and term_to_binary/1. terms(Config) when is_list(Config) -> TestFun = fun(Term) -> try S = io_lib:format("~p", [Term]), io:put_chars(S) catch error:badarg -> io:put_chars("bit sized binary") end, Bin = term_to_binary(Term), case erlang:external_size(Bin) of Sz when is_integer(Sz), size(Bin) =< Sz -> ok end, Bin1 = term_to_binary(Term, [{minor_version, 1}]), case erlang:external_size(Bin1, [{minor_version, 1}]) of Sz1 when is_integer(Sz1), size(Bin1) =< Sz1 -> ok end, Term = binary_to_term(Bin), Term = binary_to_term(Bin, [safe]), Unaligned = make_unaligned_sub_binary(Bin), Term = binary_to_term(Unaligned), Term = binary_to_term(Unaligned, []), Term = binary_to_term(Bin, [safe]), BinC = erlang:term_to_binary(Term, [compressed]), Term = binary_to_term(BinC), true = size(BinC) =< size(Bin), Bin = term_to_binary(Term, [{compressed,0}]), terms_compression_levels(Term, size(Bin), 1), UnalignedC = make_unaligned_sub_binary(BinC), Term = binary_to_term(UnalignedC) end, ?line test_terms(TestFun), ok. terms_compression_levels(Term, UncompressedSz, Level) when Level < 10 -> BinC = erlang:term_to_binary(Term, [{compressed,Level}]), Term = binary_to_term(BinC), Sz = byte_size(BinC), true = Sz =< UncompressedSz, terms_compression_levels(Term, UncompressedSz, Level+1); terms_compression_levels(_, _, _) -> ok. terms_float(Config) when is_list(Config) -> ?line test_floats(fun(Term) -> Bin0 = term_to_binary(Term), Bin0 = term_to_binary(Term, [{minor_version,0}]), Term = binary_to_term(Bin0), Bin1 = term_to_binary(Term, [{minor_version,1}]), Term = binary_to_term(Bin1), true = size(Bin1) < size(Bin0), Size0 = erlang:external_size(Term), Size00 = erlang:external_size(Term, [{minor_version, 0}]), Size1 = erlang:external_size(Term, [{minor_version, 1}]), true = (Size0 =:= Size00), true = Size1 < Size0 end). external_size(Config) when is_list(Config) -> %% Build a term whose external size only fits in a big num (on 32-bit CPU). ?line external_size_1(16#11111111111111117777777777777777888889999, 0, 16#FFFFFFF), %% Test that the same binary aligned and unaligned has the same external size. ?line Bin = iolist_to_binary([1,2,3,96]), ?line Unaligned = make_unaligned_sub_binary(Bin), case {erlang:external_size(Bin),erlang:external_size(Unaligned)} of {X,X} -> ok; {Sz1,Sz2} -> io:format(" Aligned size: ~p\n", [Sz1]), io:format("Unaligned size: ~p\n", [Sz2]), ?line ?t:fail() end, ?line erlang:external_size(Bin) =:= erlang:external_size(Bin, [{minor_version, 1}]), ?line erlang:external_size(Unaligned) =:= erlang:external_size(Unaligned, [{minor_version, 1}]). external_size_1(Term, Size0, Limit) when Size0 < Limit -> case erlang:external_size(Term) of Size when is_integer(Size), Size0 < Size -> io:format("~p", [Size]), external_size_1([Term|Term], Size, Limit) end; external_size_1(_, _, _) -> ok. t_iolist_size(Config) when is_list(Config) -> ?line Seed = now(), ?line io:format("Seed: ~p", [Seed]), ?line random:seed(Seed), ?line Base = <<0:(1 bsl 20)/unit:8>>, ?line Powers = [1 bsl N || N <- lists:seq(2, 37)], ?line Sizes0 = [[N - random:uniform(N div 2), lists:seq(N-2, N+2), N+N div 2, N + random:uniform(N div 2)] || N <- Powers], %% Test sizes around 1^32 more thoroughly. FourGigs = 1 bsl 32, ?line Sizes1 = [FourGigs+N || N <- lists:seq(-8, 40)] ++ Sizes0, ?line Sizes2 = lists:flatten(Sizes1), ?line Sizes = lists:usort(Sizes2), io:format("~p sizes:", [length(Sizes)]), io:format("~p\n", [Sizes]), ?line [Sz = iolist_size(build_iolist(Sz, Base)) || Sz <- Sizes], ok. build_iolist(N, Base) when N < 16 -> case random:uniform(3) of 1 -> <<Bin:N/binary,_/binary>> = Base, Bin; _ -> lists:seq(1, N) end; build_iolist(N, Base) when N =< byte_size(Base) -> case random:uniform(3) of 1 -> <<Bin:N/binary,_/binary>> = Base, Bin; 2 -> <<Bin:N/binary,_/binary>> = Base, [Bin]; 3 -> case N rem 2 of 0 -> L = build_iolist(N div 2, Base), [L,L]; 1 -> L = build_iolist(N div 2, Base), [L,L,45] end end; build_iolist(N0, Base) -> Small = random:uniform(15), Seq = lists:seq(1, Small), N = N0 - Small, case N rem 2 of 0 -> L = build_iolist(N div 2, Base), [L,L|Seq]; 1 -> L = build_iolist(N div 2, Base), [47,L,L|Seq] end. bad_binary_to_term_2(doc) -> "OTP-4053."; bad_binary_to_term_2(suite) -> []; bad_binary_to_term_2(Config) when is_list(Config) -> ?line {ok, N} = test_server:start_node(plopp, slave, []), ?line R = rpc:call(N, erlang, binary_to_term, [<<131,111,255,255,255,0>>]), ?line case R of {badrpc, {'EXIT', _}} -> ok; _Other -> test_server:fail({rpcresult, R}) end, ?line test_server:stop_node(N), ok. bad_binary_to_term(doc) -> "Try bad input to binary_to_term/1."; bad_binary_to_term(Config) when is_list(Config) -> ?line bad_bin_to_term(an_atom), ?line bad_bin_to_term({an,tuple}), ?line bad_bin_to_term({a,list}), ?line bad_bin_to_term(fun() -> self() end), ?line bad_bin_to_term(fun(X) -> 42*X end), ?line bad_bin_to_term(fun(X, Y) -> {X,Y} end), ?line bad_bin_to_term(fun(X, Y, Z) -> {X,Y,Z} end), ?line bad_bin_to_term(bit_sized_binary(term_to_binary({you,should,'not',see,this,term}))), %% Bad float. ?line bad_bin_to_term(<<131,70,-1:64>>), ok. bad_bin_to_term(BadBin) -> {'EXIT',{badarg,_}} = (catch binary_to_term(BadBin)). bad_bin_to_term(BadBin,Opts) -> {'EXIT',{badarg,_}} = (catch binary_to_term(BadBin,Opts)). safe_binary_to_term2(doc) -> "Test safety options for binary_to_term/2"; safe_binary_to_term2(Config) when is_list(Config) -> ?line bad_bin_to_term(<<131,100,0,14,"undefined_atom">>, [safe]), ?line bad_bin_to_term(<<131,100,0,14,"other_bad_atom">>, [safe]), BadHostAtom = <<100,0,14,"badguy@badhost">>, Empty = <<0,0,0,0>>, BadRef = <<131,114,0,3,BadHostAtom/binary,0,<<0,0,0,255>>/binary, Empty/binary,Empty/binary>>, ?line bad_bin_to_term(BadRef, [safe]), % good ref, with a bad atom ?line fullsweep_after = binary_to_term(<<131,100,0,15,"fullsweep_after">>, [safe]), % should be a good atom BadExtFun = <<131,113,100,0,4,98,108,117,101,100,0,4,109,111,111,110,97,3>>, ?line bad_bin_to_term(BadExtFun, [safe]), ok. %% Tests bad input to binary_to_term/1. bad_terms(suite) -> []; bad_terms(Config) when is_list(Config) -> ?line test_terms(fun corrupter/1). corrupter(Term) -> ?line try S = io_lib:format("About to corrupt: ~P", [Term,12]), io:put_chars(S) catch error:badarg -> io:format("About to corrupt: <<bit-level-binary:~p", [bit_size(Term)]) end, ?line Bin = term_to_binary(Term), ?line corrupter(Bin, size(Bin)-1), ?line CompressedBin = term_to_binary(Term, [compressed]), ?line corrupter(CompressedBin, size(CompressedBin)-1). corrupter(Bin, Pos) when Pos >= 0 -> ?line {ShorterBin, Rest} = split_binary(Bin, Pos), ?line catch binary_to_term(ShorterBin), %% emulator shouldn't crash ?line MovedBin = list_to_binary([ShorterBin]), ?line catch binary_to_term(MovedBin), %% emulator shouldn't crash %% Bit faults, shouldn't crash <<Byte,Tail/binary>> = Rest, Fun = fun(M) -> FaultyByte = Byte bxor M, catch binary_to_term(<<ShorterBin/binary, FaultyByte, Tail/binary>>) end, ?line lists:foreach(Fun,[1,2,4,8,16,32,64,128,255]), ?line corrupter(Bin, Pos-1); corrupter(_Bin, _) -> ok. more_bad_terms(suite) -> []; more_bad_terms(Config) when is_list(Config) -> ?line Data = ?config(data_dir, Config), ?line BadFile = filename:join(Data, "bad_binary"), ?line ok = io:format("File: ~s\n", [BadFile]), ?line case file:read_file(BadFile) of {ok,Bin} -> ?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin)), ok; Other -> ?line ?t:fail(Other) end. otp_5484(Config) when is_list(Config) -> ?line {'EXIT',_} = (catch binary_to_term( <<131, 104,2, %Tuple, 2 elements 103, %Pid 100,0,20,"wslin1427198@wslin14", %% Obviously bad values follow. 255,255,255,255, 255,255,255,255, 255, 106>>)), ?line {'EXIT',_} = (catch binary_to_term( <<131, 104,2, %Tuple, 2 elements 103, %Pid 106, %[] instead of atom. 0,0,0,17, 0,0,0,135, 2, 106>>)), ?line {'EXIT',_} = (catch binary_to_term( %% A old-type fun in a list containing a bad creator pid. <<131,108,0,0,0,1,117,0,0,0,0,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,255,255,0,25,255,0,0,0,0,100,0,1,116,97,0,98,6,142,121,72,106>>)), ?line {'EXIT',_} = (catch binary_to_term( %% A new-type fun in a list containing a bad creator pid. %% <<131, 108,0,0,0,1, %List, 1 element 112,0,0,0,66,0,52,216,81,158,148,250,237,109,185,9,208,60,202,156,244,218,0,0,0,0,0,0,0,0,100,0,1,116,97,0,98,6,142,121,72, 103, %Pid. 106, %[] instead of an atom. 0,0,0,27,0,0,0,0,0,106>>)), ?line {'EXIT',_} = (catch binary_to_term( %% A new-type fun in a list containing a bad module. <<131, 108,0,0,0,1, %List, 1 element 112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2, %%100,0,1,116, 107,0,1,64, %String instead of atom (same length). 97,0,98,6,64,82,230,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)), ?line {'EXIT',_} = (catch binary_to_term( %% A new-type fun in a list containing a bad index. <<131, 108,0,0,0,1, %List, 1 element 112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2, 100,0,1,116, %%97,0, %Integer: 0. 104,0, %Tuple {} instead of integer. 98,6,64,82,230,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)), ?line {'EXIT',_} = (catch binary_to_term( %% A new-type fun in a list containing a bad unique value. <<131, 108,0,0,0,1, %List, 1 element 112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2, 100,0,1,116, 97,0, %Integer: 0. %%98,6,64,82,230, %Integer. 100,0,2,64,65, %Atom instead of integer. 103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)), %% An absurdly large atom. ?line {'EXIT',_} = (catch binary_to_term(iolist_to_binary([<<131,100,65000:16>>| lists:duplicate(65000, 42)]))), %% Longer than 255 characters. ?line {'EXIT',_} = (catch binary_to_term(iolist_to_binary([<<131,100,256:16>>| lists:duplicate(256, 42)]))), %% OTP-7218. Thanks to Matthew Dempsky. Also make sure that we %% cover the other error cases for external funs (EXPORT_EXT). ?line {'EXIT',_} = (catch binary_to_term( <<131, 113, %EXPORT_EXP 97,13, %Integer: 13 97,13, %Integer: 13 97,13>>)), %Integer: 13 ?line {'EXIT',_} = (catch binary_to_term( <<131, 113, %EXPORT_EXP 100,0,1,64, %Atom: '@' 97,13, %Integer: 13 97,13>>)), %Integer: 13 ?line {'EXIT',_} = (catch binary_to_term( <<131, 113, %EXPORT_EXP 100,0,1,64, %Atom: '@' 100,0,1,64, %Atom: '@' 106>>)), %NIL ?line {'EXIT',_} = (catch binary_to_term( <<131, 113, %EXPORT_EXP 100,0,1,64, %Atom: '@' 100,0,1,64, %Atom: '@' 98,255,255,255,255>>)), %Integer: -1 ?line {'EXIT',_} = (catch binary_to_term( <<131, 113, %EXPORT_EXP 100,0,1,64, %Atom: '@' 100,0,1,64, %Atom: '@' 113,97,13,97,13,97,13>>)), %fun 13:13/13 %% Bad funs. ?line {'EXIT',_} = (catch binary_to_term(fake_fun(0, lists:seq(0, 256)))), ok. fake_fun(Arity, Env0) -> Uniq = erlang:md5([]), Index = 0, NumFree = length(Env0), Mod = list_to_binary(?MODULE_STRING), OldIndex = 0, OldUniq = 16#123456, <<131,Pid/binary>> = term_to_binary(self()), Env1 = [term_to_binary(Term) || Term <- Env0], Env = << <<Bin/binary>> || <<131,Bin/binary>> <- Env1 >>, B = <<Arity,Uniq/binary,Index:32,NumFree:32, $d,(byte_size(Mod)):16,Mod/binary, %Module. $a,OldIndex:8, $b,OldUniq:32, Pid/binary,Env/binary>>, <<131,$p,(byte_size(B)+4):32,B/binary>>. %% More bad terms submitted by Matthias Lang. otp_5933(Config) when is_list(Config) -> ?line try_bad_lengths(<<131,$m>>), %binary ?line try_bad_lengths(<<131,$n>>), %bignum ?line try_bad_lengths(<<131,$o>>), %huge bignum ok. try_bad_lengths(B) -> try_bad_lengths(B, 16#FFFFFFFF). try_bad_lengths(B, L) when L > 16#FFFFFFF0 -> Bin = <<B/binary,L:32>>, io:format("~p\n", [Bin]), {'EXIT',_} = (catch binary_to_term(Bin)), try_bad_lengths(B, L-1); try_bad_lengths(_, _) -> ok. otp_6817(Config) when is_list(Config) -> process_flag(min_heap_size, 20000), %Use the heap, not heap fragments. %% Floats are only validated when the heap fragment has been allocated. BadFloat = <<131,99,53,46,48,$X,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,101,45,48,49,0,0,0,0,0>>, ?line otp_6817_try_bin(BadFloat), %% {Binary,BadFloat}: When the error in float is discovered, a refc-binary %% has been allocated and the list of refc-binaries goes through the %% limbo area between the heap top and stack. BinAndFloat = <<131,104,2,109,0,0,1,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20, 21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45, 46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70, 71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95, 96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115, 116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134, 135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153, 154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172, 173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210, 211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229, 230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248, 249,250,251,252,253,254,255,99,51,46,49,52,$B,$l,$u,$r,$f,48,48,48,48,48,48, 48,48,49,50,52,51,52,101,43,48,48,0,0,0,0,0>>, ?line otp_6817_try_bin(BinAndFloat), %% {Fun,BadFloat} FunAndFloat = <<131,104,2,112,0,0,0,66,0,238,239,135,138,137,216,89,57,22,111,52,126,16,84, 71,8,0,0,0,0,0,0,0,0,100,0,1,116,97,0,98,5,175,169,123,103,100,0,13,110,111, 110,111,100,101,64,110,111,104,111,115,116,0,0,0,41,0,0,0,0,0,99,50,46,55,48, $Y,57,57,57,57,57,57,57,57,57,57,57,57,57,54,52,52,55,101,43,48,48,0,0,0,0,0>>, ?line otp_6817_try_bin(FunAndFloat), %% [ExternalPid|BadFloat] ExtPidAndFloat = <<131,108,0,0,0,1,103,100,0,13,107,97,108,108,101,64,115,116,114,105,100,101, 114,0,0,0,36,0,0,0,0,2,99,48,46,$@,48,48,48,48,48,48,48,48,48,48,48,48,48,48, 48,48,48,48,48,101,43,48,48,0,0,0,0,0>>, ?line otp_6817_try_bin(ExtPidAndFloat), ok. otp_6817_try_bin(Bin) -> erlang:garbage_collect(), %% If the bug is present, the heap pointer will moved when the invalid term %% is found and we will have a linked list passing through the limbo area %% between the heap top and the stack pointer. catch binary_to_term(Bin), %% If the bug is present, we will overwrite the pointers in the limbo area. Filler = erlang:make_tuple(1024, 16#3FA), id(Filler), %% Will crash if the bug is present. erlang:garbage_collect(). otp_8117(doc) -> "Some bugs in binary_to_term when 32-bit integers are negative."; otp_8117(suite) -> []; otp_8117(Config) when is_list(Config) -> [otp_8117_do(Op,-(1 bsl N)) || Op <- ['fun',list,tuple], N <- lists:seq(0,31)], ok. otp_8117_do('fun',Neg) -> % Fun with negative num_free FunBin = term_to_binary(fun() -> ok end), ?line <<B1:27/binary,_NumFree:32,Rest/binary>> = FunBin, ?line bad_bin_to_term(<<B1/binary,Neg:32,Rest/binary>>); otp_8117_do(list,Neg) -> %% List with negative length ?line bad_bin_to_term(<<131,104,2,108,Neg:32,97,11,104,1,97,12,97,13,106,97,14>>); otp_8117_do(tuple,Neg) -> %% Tuple with negative arity ?line bad_bin_to_term(<<131,104,2,105,Neg:32,97,11,97,12,97,13,97,14>>). ordering(doc) -> "Tests ordering of binaries."; ordering(suite) -> []; ordering(Config) when is_list(Config) -> B1 = list_to_binary([7,8,9]), B2 = make_sub_binary([1,2,3,4]), B3 = list_to_binary([1,2,3,5]), Unaligned = make_unaligned_sub_binary(B2), %% From R8 binaries are compared as strings. ?line false = B1 == B2, ?line false = B1 =:= B2, ?line true = B1 /= B2, ?line true = B1 =/= B2, ?line true = B1 > B2, ?line true = B2 < B3, ?line true = B2 =< B1, ?line true = B2 =< B3, ?line true = B2 =:= Unaligned, ?line true = B2 == Unaligned, ?line true = Unaligned < B3, ?line true = Unaligned =< B3, %% Binaries are greater than all other terms. ?line true = B1 > 0, ?line true = B1 > 39827491247298471289473333333333333333333333333333, ?line true = B1 > -3489274937438742190467869234328742398347, ?line true = B1 > 3.14, ?line true = B1 > [], ?line true = B1 > [a], ?line true = B1 > {a}, ?line true = B1 > self(), ?line true = B1 > make_ref(), ?line true = B1 > xxx, ?line true = B1 > fun() -> 1 end, ?line true = B1 > fun erlang:send/2, ?line Path = ?config(priv_dir, Config), ?line AFile = filename:join(Path, "vanilla_file"), ?line Port = open_port(AFile, [out]), ?line true = B1 > Port, ?line true = B1 >= 0, ?line true = B1 >= 39827491247298471289473333333333333333333333333333, ?line true = B1 >= -3489274937438742190467869234328742398347, ?line true = B1 >= 3.14, ?line true = B1 >= [], ?line true = B1 >= [a], ?line true = B1 >= {a}, ?line true = B1 >= self(), ?line true = B1 >= make_ref(), ?line true = B1 >= xxx, ?line true = B1 >= fun() -> 1 end, ?line true = B1 >= fun erlang:send/2, ?line true = B1 >= Port, ok. %% Test that comparisions between binaries with different alignment work. unaligned_order(Config) when is_list(Config) -> L = lists:seq(0, 7), [test_unaligned_order(I, J) || I <- L, J <- L], ok. test_unaligned_order(I, J) -> Align = {I,J}, io:format("~p ~p", [I,J]), ?line true = test_unaligned_order_1('=:=', <<1,2,3,16#AA,16#7C,4,16#5F,5,16#5A>>, <<1,2,3,16#AA,16#7C,4,16#5F,5,16#5A>>, Align), ?line false = test_unaligned_order_1('=/=', <<1,2,3>>, <<1,2,3>>, Align), ?line true = test_unaligned_order_1('==', <<4,5,6>>, <<4,5,6>>, Align), ?line false = test_unaligned_order_1('/=', <<1,2,3>>, <<1,2,3>>, Align), ?line true = test_unaligned_order_1('<', <<1,2>>, <<1,2,3>>, Align), ?line true = test_unaligned_order_1('=<', <<1,2>>, <<1,2,3>>, Align), ?line true = test_unaligned_order_1('=<', <<1,2,7,8>>, <<1,2,7,8>>, Align), ok. test_unaligned_order_1(Op, A, B, {Aa,Ba}) -> erlang:Op(unaligned_sub_bin(A, Aa), unaligned_sub_bin(B, Ba)). test_terms(Test_Func) -> ?line Test_Func(atom), ?line Test_Func(''), ?line Test_Func('a'), ?line Test_Func('ab'), ?line Test_Func('abc'), ?line Test_Func('abcd'), ?line Test_Func('abcde'), ?line Test_Func('abcdef'), ?line Test_Func('abcdefg'), ?line Test_Func('abcdefgh'), ?line Test_Func(fun() -> ok end), X = id([a,{b,c},c]), Y = id({x,y,z}), Z = id(1 bsl 8*257), ?line Test_Func(fun() -> X end), ?line Test_Func(fun() -> {X,Y} end), ?line Test_Func([fun() -> {X,Y,Z} end, fun() -> {Z,X,Y} end, fun() -> {Y,Z,X} end]), ?line Test_Func({trace_ts,{even_bigger,{some_data,fun() -> ok end}},{1,2,3}}), ?line Test_Func({trace_ts,{even_bigger,{some_data,<<1,2,3,4,5,6,7,8,9,10>>}}, {1,2,3}}), ?line Test_Func(1), ?line Test_Func(42), ?line Test_Func(-23), ?line Test_Func(256), ?line Test_Func(25555), ?line Test_Func(-3333), ?line Test_Func(1.0), ?line Test_Func(183749783987483978498378478393874), ?line Test_Func(-37894183749783987483978498378478393874), Very_Big = very_big_num(), ?line Test_Func(Very_Big), ?line Test_Func(-Very_Big+1), ?line Test_Func([]), ?line Test_Func("abcdef"), ?line Test_Func([a, b, 1, 2]), ?line Test_Func([a|b]), ?line Test_Func({}), ?line Test_Func({1}), ?line Test_Func({a, b}), ?line Test_Func({a, b, c}), ?line Test_Func(list_to_tuple(lists:seq(0, 255))), ?line Test_Func(list_to_tuple(lists:seq(0, 256))), ?line Test_Func(make_ref()), ?line Test_Func([make_ref(), make_ref()]), ?line Test_Func(make_port()), ?line Test_Func(make_pid()), ?line Test_Func(Bin0 = list_to_binary(lists:seq(0, 14))), ?line Test_Func(Bin1 = list_to_binary(lists:seq(0, ?heap_binary_size))), ?line Test_Func(Bin2 = list_to_binary(lists:seq(0, ?heap_binary_size+1))), ?line Test_Func(Bin3 = list_to_binary(lists:seq(0, 255))), ?line Test_Func(make_unaligned_sub_binary(Bin0)), ?line Test_Func(make_unaligned_sub_binary(Bin1)), ?line Test_Func(make_unaligned_sub_binary(Bin2)), ?line Test_Func(make_unaligned_sub_binary(Bin3)), ?line Test_Func(make_sub_binary(lists:seq(42, 43))), ?line Test_Func(make_sub_binary([42,43,44])), ?line Test_Func(make_sub_binary([42,43,44,45])), ?line Test_Func(make_sub_binary([42,43,44,45,46])), ?line Test_Func(make_sub_binary([42,43,44,45,46,47])), ?line Test_Func(make_sub_binary([42,43,44,45,46,47,48])), ?line Test_Func(make_sub_binary(lists:seq(42, 49))), ?line Test_Func(make_sub_binary(lists:seq(0, 14))), ?line Test_Func(make_sub_binary(lists:seq(0, ?heap_binary_size))), ?line Test_Func(make_sub_binary(lists:seq(0, ?heap_binary_size+1))), ?line Test_Func(make_sub_binary(lists:seq(0, 255))), ?line Test_Func(make_unaligned_sub_binary(lists:seq(42, 43))), ?line Test_Func(make_unaligned_sub_binary([42,43,44])), ?line Test_Func(make_unaligned_sub_binary([42,43,44,45])), ?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46])), ?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46,47])), ?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46,47,48])), ?line Test_Func(make_unaligned_sub_binary(lists:seq(42, 49))), ?line Test_Func(make_unaligned_sub_binary(lists:seq(0, 14))), ?line Test_Func(make_unaligned_sub_binary(lists:seq(0, ?heap_binary_size))), ?line Test_Func(make_unaligned_sub_binary(lists:seq(0, ?heap_binary_size+1))), ?line Test_Func(make_unaligned_sub_binary(lists:seq(0, 255))), %% Bit level binaries. ?line Test_Func(<<1:1>>), ?line Test_Func(<<2:2>>), ?line Test_Func(<<42:10>>), ?line Test_Func(list_to_bitstring([<<5:6>>|lists:seq(0, 255)])), ?line Test_Func(F = fun(A) -> 42*A end), ?line Test_Func(lists:duplicate(32, F)), ?line Test_Func(FF = fun binary_SUITE:all/0), ?line Test_Func(lists:duplicate(32, FF)), ok. test_floats(Test_Func) -> ?line Test_Func(5.5), ?line Test_Func(-15.32), ?line Test_Func(1.2435e25), ?line Test_Func(1.2333e-20), ?line Test_Func(199.0e+15), ok. very_big_num() -> very_big_num(33, 1). very_big_num(Left, Result) when Left > 0 -> ?line very_big_num(Left-1, Result*256); very_big_num(0, Result) -> ?line Result. make_port() -> ?line open_port({spawn, efile}, [eof]). make_pid() -> ?line spawn_link(?MODULE, sleeper, []). sleeper() -> ?line receive after infinity -> ok end. %% Test that binaries are garbage collected properly. gc_test(Config) when is_list(Config) -> %% Note: This test is only relevant for REFC binaries. %% Therefore, we take care that all binaries are REFC binaries. B = list_to_binary(lists:seq(0, ?heap_binary_size)), Self = self(), F1 = fun() -> gc(), {binary,[]} = process_info(self(), binary), Self ! {self(),done} end, F = fun() -> receive go -> ok end, {binary,[{_,65,1}]} = process_info(self(), binary), gc(), {B1,B2} = my_split_binary(B, 4), gc(), gc(), {binary,L1} = process_info(self(), binary), [Binfo1,Binfo2,Binfo3] = L1, {_,65,3} = Binfo1 = Binfo2 = Binfo3, 65 = size(B), 4 = size(B1), 61 = size(B2), F1() end, gc(), gc(), 65 = size(B), gc_test1(spawn_opt(erlang, apply, [F,[]], [link,{fullsweep_after,0}])). gc_test1(Pid) -> gc(), Pid ! go, receive {Pid,done} -> ok after 10000 -> ?line ?t:fail() end. %% Like split binary, but returns REFC binaries. Only useful for gc_test/1. my_split_binary(B, Pos) -> Self = self(), Ref = make_ref(), spawn(fun() -> Self ! {Ref,split_binary(B, Pos)} end), receive {Ref,Result} -> Result end. gc() -> erlang:garbage_collect(), gc1(). gc1() -> ok. bit_sized_binary_sizes(Config) when is_list(Config) -> ?line [bsbs_1(A) || A <- lists:seq(0, 7)], ok. bsbs_1(0) -> BinSize = 32+8, io:format("A: ~p BinSize: ~p", [0,BinSize]), Bin = binary_to_term(<<131,$M,5:32,0,0,0,0,0,0>>), BinSize = bit_size(Bin); bsbs_1(A) -> BinSize = 32+A, io:format("A: ~p BinSize: ~p", [A,BinSize]), Bin = binary_to_term(<<131,$M,5:32,A,0,0,0,0,0>>), BinSize = bit_size(Bin). deep(Config) when is_list(Config) -> ?line deep_roundtrip(lists:foldl(fun(E, A) -> [E,A] end, [], lists:seq(1, 1000000))), ?line deep_roundtrip(lists:foldl(fun(E, A) -> {E,A} end, [], lists:seq(1, 1000000))), ?line deep_roundtrip(lists:foldl(fun(E, A) -> fun() -> {E,A} end end, [], lists:seq(1, 1000000))), ok. deep_roundtrip(T) -> B = term_to_binary(T), T = binary_to_term(B). obsolete_funs(Config) when is_list(Config) -> erts_debug:set_internal_state(available_internal_state, true), X = id({1,2,3}), Y = id([a,b,c,d]), Z = id({x,y,z}), ?line obsolete_fun(fun() -> ok end), ?line obsolete_fun(fun() -> X end), ?line obsolete_fun(fun(A) -> {A,X} end), ?line obsolete_fun(fun() -> {X,Y} end), ?line obsolete_fun(fun() -> {X,Y,Z} end), ?line obsolete_fun(fun ?MODULE:all/1), erts_debug:set_internal_state(available_internal_state, false), ok. obsolete_fun(Fun) -> Tuple = case erlang:fun_info(Fun, type) of {type,external} -> {module,M} = erlang:fun_info(Fun, module), {name,F} = erlang:fun_info(Fun, name), {M,F}; {type,local} -> {module,M} = erlang:fun_info(Fun, module), {index,I} = erlang:fun_info(Fun, index), {uniq,U} = erlang:fun_info(Fun, uniq), {env,E} = erlang:fun_info(Fun, env), {'fun',M,I,U,list_to_tuple(E)} end, Tuple = no_fun_roundtrip(Fun). no_fun_roundtrip(Term) -> binary_to_term(erts_debug:get_internal_state({term_to_binary_no_funs,Term})). %% Test non-standard encodings never generated by term_to_binary/1 %% but recognized by binary_to_term/1. robustness(Config) when is_list(Config) -> ?line [] = binary_to_term(<<131,107,0,0>>), %Empty string. ?line [] = binary_to_term(<<131,108,0,0,0,0,106>>), %Zero-length list. %% {[],a} where [] is a zero-length list. ?line {[],a} = binary_to_term(<<131,104,2,108,0,0,0,0,106,100,0,1,97>>), %% {42,a} where 42 is a zero-length list with 42 in the tail. ?line {42,a} = binary_to_term(<<131,104,2,108,0,0,0,0,97,42,100,0,1,97>>), %% {{x,y},a} where {x,y} is a zero-length list with {x,y} in the tail. ?line {{x,y},a} = binary_to_term(<<131,104,2,108,0,0,0,0, 104,2,100,0,1,120,100,0,1, 121,100,0,1,97>>), %% Bignums fitting in 32 bits. ?line 16#7FFFFFFF = binary_to_term(<<131,98,127,255,255,255>>), ?line -1 = binary_to_term(<<131,98,255,255,255,255>>), ok. %% OTP-8180: Test several terms that have been known to crash the emulator. %% (Thanks to Scott Lystig Fritchie.) otp_8180(Config) when is_list(Config) -> ?line Data = ?config(data_dir, Config), ?line Wc = filename:join(Data, "zzz.*"), Files = filelib:wildcard(Wc), [run_otp_8180(F) || F <- Files], ok. run_otp_8180(Name) -> io:format("~s", [Name]), ?line {ok,Bins} = file:consult(Name), [begin io:format("~p\n", [Bin]), ?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin)) end || Bin <- Bins], ok. %% Utilities. make_sub_binary(Bin) when is_binary(Bin) -> {_,B} = split_binary(list_to_binary([0,1,3,Bin]), 3), B; make_sub_binary(List) -> make_sub_binary(list_to_binary(List)). make_unaligned_sub_binary(Bin0) when is_binary(Bin0) -> Bin1 = <<0:3,Bin0/binary,31:5>>, Sz = size(Bin0), <<0:3,Bin:Sz/binary,31:5>> = id(Bin1), Bin; make_unaligned_sub_binary(List) -> make_unaligned_sub_binary(list_to_binary(List)). %% Add 1 bit to the size of the binary. bit_sized_binary(Bin0) -> Bin = <<Bin0/binary,1:1>>, BitSize = bit_size(Bin), BitSize = 8*size(Bin) + 1, Bin. unaligned_sub_bin(Bin, 0) -> Bin; unaligned_sub_bin(Bin0, Offs) -> F = random:uniform(256), Roffs = 8-Offs, Bin1 = <<F:Offs,Bin0/binary,F:Roffs>>, Sz = size(Bin0), <<_:Offs,Bin:Sz/binary,_:Roffs>> = id(Bin1), Bin. id(I) -> I.