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-rw-r--r--lib/asn1/src/asn1rt_per_bin.erl2285
1 files changed, 0 insertions, 2285 deletions
diff --git a/lib/asn1/src/asn1rt_per_bin.erl b/lib/asn1/src/asn1rt_per_bin.erl
deleted file mode 100644
index 5772f09bf4..0000000000
--- a/lib/asn1/src/asn1rt_per_bin.erl
+++ /dev/null
@@ -1,2285 +0,0 @@
-%%
-%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 2001-2012. 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(asn1rt_per_bin).
-%% encoding / decoding of PER aligned
-
--include("asn1_records.hrl").
-
--export([dec_fixup/3, cindex/3, list_to_record/2]).
--export([setchoiceext/1, setext/1, fixoptionals/2, fixoptionals/3,
- fixextensions/2,
- getext/1, getextension/2, skipextensions/3, getbit/1, getchoice/3 ]).
--export([getoptionals/2, getoptionals2/2, set_choice/3, encode_integer/2, encode_integer/3 ]).
--export([decode_integer/2, decode_integer/3, encode_small_number/1, encode_boolean/1,
- decode_boolean/1, encode_length/2, decode_length/1, decode_length/2,
- encode_small_length/1, decode_small_length/1,
- decode_compact_bit_string/3]).
--export([decode_enumerated/3,
- encode_bit_string/3, decode_bit_string/3 ]).
--export([encode_octet_string/2, decode_octet_string/2,
- encode_null/1, decode_null/1,
- encode_object_identifier/1, decode_object_identifier/1,
- encode_real/1, decode_real/1,
- encode_relative_oid/1, decode_relative_oid/1,
- complete/1]).
-
-
--export([encode_open_type/2, decode_open_type/2]).
-
--export([encode_UniversalString/2, decode_UniversalString/2,
- encode_PrintableString/2, decode_PrintableString/2,
- encode_GeneralString/2, decode_GeneralString/2,
- encode_GraphicString/2, decode_GraphicString/2,
- encode_TeletexString/2, decode_TeletexString/2,
- encode_VideotexString/2, decode_VideotexString/2,
- encode_VisibleString/2, decode_VisibleString/2,
- encode_UTF8String/1, decode_UTF8String/1,
- encode_BMPString/2, decode_BMPString/2,
- encode_IA5String/2, decode_IA5String/2,
- encode_NumericString/2, decode_NumericString/2,
- encode_ObjectDescriptor/2, decode_ObjectDescriptor/1
- ]).
--export([complete_bytes/1, getbits/2, getoctets/2, minimum_bits/1]).
-
--define('16K',16384).
--define('32K',32768).
--define('64K',65536).
-
-dec_fixup(Terms,Cnames,RemBytes) ->
- dec_fixup(Terms,Cnames,RemBytes,[]).
-
-dec_fixup([novalue|T],[_Hc|Tc],RemBytes,Acc) ->
- dec_fixup(T,Tc,RemBytes,Acc);
-dec_fixup([{_Name,novalue}|T],[_Hc|Tc],RemBytes,Acc) ->
- dec_fixup(T,Tc,RemBytes,Acc);
-dec_fixup([H|T],[Hc|Tc],RemBytes,Acc) ->
- dec_fixup(T,Tc,RemBytes,[{Hc,H}|Acc]);
-dec_fixup([],_Cnames,RemBytes,Acc) ->
- {lists:reverse(Acc),RemBytes}.
-
-cindex(Ix,Val,Cname) ->
- case element(Ix,Val) of
- {Cname,Val2} -> Val2;
- X -> X
- end.
-
-%% converts a list to a record if necessary
-list_to_record(_Name,Tuple) when is_tuple(Tuple) ->
- Tuple;
-list_to_record(Name,List) when is_list(List) ->
- list_to_tuple([Name|List]).
-
-%%--------------------------------------------------------
-%% setchoiceext(InRootSet) -> [{bit,X}]
-%% X is set to 1 when InRootSet==false
-%% X is set to 0 when InRootSet==true
-%%
-setchoiceext(true) ->
- [{debug,choiceext},{bits,1,0}];
-setchoiceext(false) ->
- [{debug,choiceext},{bits,1,1}].
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% setext(true|false) -> CompleteList
-%%
-
-setext(false) ->
- [{debug,ext},{bits,1,0}];
-setext(true) ->
- [{debug,ext},{bits,1,1}].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% This version of fixoptionals/2 are left only because of
-%% backward compatibility with older generates
-
-fixoptionals(OptList,Val) when is_tuple(Val) ->
- fixoptionals1(OptList,Val,[]);
-
-fixoptionals(OptList,Val) when is_list(Val) ->
- fixoptionals1(OptList,Val,1,[],[]).
-
-fixoptionals1([],Val,Acc) ->
- %% return {Val,Opt}
- {Val,lists:reverse(Acc)};
-fixoptionals1([{_,Pos}|Ot],Val,Acc) ->
- case element(Pos+1,Val) of
- asn1_NOVALUE -> fixoptionals1(Ot,Val,[0|Acc]);
- asn1_DEFAULT -> fixoptionals1(Ot,Val,[0|Acc]);
- _ -> fixoptionals1(Ot,Val,[1|Acc])
- end.
-
-
-fixoptionals1([{Name,Pos}|Ot],[{Name,Val}|Vt],_Opt,Acc1,Acc2) ->
- fixoptionals1(Ot,Vt,Pos+1,[1|Acc1],[{Name,Val}|Acc2]);
-fixoptionals1([{_Name,Pos}|Ot],V,Pos,Acc1,Acc2) ->
- fixoptionals1(Ot,V,Pos+1,[0|Acc1],[asn1_NOVALUE|Acc2]);
-fixoptionals1(O,[Vh|Vt],Pos,Acc1,Acc2) ->
- fixoptionals1(O,Vt,Pos+1,Acc1,[Vh|Acc2]);
-fixoptionals1([],[Vh|Vt],Pos,Acc1,Acc2) ->
- fixoptionals1([],Vt,Pos+1,Acc1,[Vh|Acc2]);
-fixoptionals1([],[],_,Acc1,Acc2) ->
- % return {Val,Opt}
- {list_to_tuple([asn1_RECORDNAME|lists:reverse(Acc2)]),lists:reverse(Acc1)}.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% This is the new fixoptionals/3 which is used by the new generates
-%%
-fixoptionals(OptList,OptLength,Val) when is_tuple(Val) ->
- Bits = fixoptionals(OptList,Val,0),
- {Val,{bits,OptLength,Bits}};
-
-fixoptionals([],_Val,Acc) ->
- %% Optbits
- Acc;
-fixoptionals([{Pos,DefVal}|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
- DefVal -> fixoptionals(Ot,Val,Acc bsl 1);
- _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
- end;
-fixoptionals([Pos|Ot],Val,Acc) ->
- case element(Pos,Val) of
- asn1_NOVALUE -> fixoptionals(Ot,Val,Acc bsl 1);
- asn1_DEFAULT -> fixoptionals(Ot,Val,Acc bsl 1);
- _ -> fixoptionals(Ot,Val,(Acc bsl 1) + 1)
- end.
-
-
-getext(Bytes) when is_tuple(Bytes) ->
- getbit(Bytes);
-getext(Bytes) when is_binary(Bytes) ->
- getbit({0,Bytes}).
-
-getextension(0, Bytes) ->
- {{},Bytes};
-getextension(1, Bytes) ->
- {Len,Bytes2} = decode_small_length(Bytes),
- {Blist, Bytes3} = getbits_as_list(Len,Bytes2),
- {list_to_tuple(Blist),Bytes3}.
-
-fixextensions({ext,ExtPos,ExtNum},Val) ->
- case fixextensions(ExtPos,ExtNum+ExtPos,Val,0) of
- 0 -> [];
- ExtBits ->
- [encode_small_length(ExtNum),{bits,ExtNum,ExtBits}]
- end.
-
-fixextensions(Pos,MaxPos,_,Acc) when Pos >= MaxPos ->
- Acc;
-fixextensions(Pos,ExtPos,Val,Acc) ->
- Bit = case catch(element(Pos+1,Val)) of
- asn1_NOVALUE ->
- 0;
- asn1_NOEXTVALUE ->
- 0;
- {'EXIT',_} ->
- 0;
- _ ->
- 1
- end,
- fixextensions(Pos+1,ExtPos,Val,(Acc bsl 1)+Bit).
-
-skipextensions(Bytes,Nr,ExtensionBitPattern) ->
- case (catch element(Nr,ExtensionBitPattern)) of
- 1 ->
- {_,Bytes2} = decode_open_type(Bytes,[]),
- skipextensions(Bytes2, Nr+1, ExtensionBitPattern);
- 0 ->
- skipextensions(Bytes, Nr+1, ExtensionBitPattern);
- {'EXIT',_} -> % badarg, no more extensions
- Bytes
- end.
-
-
-getchoice(Bytes,1,0) -> % only 1 alternative is not encoded
- {0,Bytes};
-getchoice(Bytes,_,1) ->
- decode_small_number(Bytes);
-getchoice(Bytes,NumChoices,0) ->
- decode_constrained_number(Bytes,{0,NumChoices-1}).
-
-%% old version kept for backward compatibility with generates from R7B
-getoptionals(Bytes,NumOpt) ->
- {Blist,Bytes1} = getbits_as_list(NumOpt,Bytes),
- {list_to_tuple(Blist),Bytes1}.
-
-%% new version used in generates from r8b_patch/3 and later
-getoptionals2(Bytes,NumOpt) ->
- getbits(Bytes,NumOpt).
-
-
-%% getbits_as_binary(Num,Bytes) -> {{Unused,BinBits},RestBytes},
-%% Num = integer(),
-%% Bytes = list() | tuple(),
-%% Unused = integer(),
-%% BinBits = binary(),
-%% RestBytes = tuple()
-getbits_as_binary(Num,Bytes) when is_binary(Bytes) ->
- getbits_as_binary(Num,{0,Bytes});
-getbits_as_binary(0,Buffer) ->
- {{0,<<>>},Buffer};
-getbits_as_binary(Num,{0,Bin}) when Num > 16 ->
- Used = Num rem 8,
- Pad = (8 - Used) rem 8,
-% Nbytes = Num div 8,
- <<Bits:Num,_:Pad,RestBin/binary>> = Bin,
- {{Pad,<<Bits:Num,0:Pad>>},RestBin};
-getbits_as_binary(Num,Buffer={_Used,_Bin}) -> % Unaligned buffer
- %% Num =< 16,
- {Bits2,Buffer2} = getbits(Buffer,Num),
- Pad = (8 - (Num rem 8)) rem 8,
- {{Pad,<<Bits2:Num,0:Pad>>},Buffer2}.
-
-
-% integer_from_list(Int,[],BigInt) ->
-% BigInt;
-% integer_from_list(Int,[H|T],BigInt) when Int < 8 ->
-% (BigInt bsl Int) bor (H bsr (8-Int));
-% integer_from_list(Int,[H|T],BigInt) ->
-% integer_from_list(Int-8,T,(BigInt bsl 8) bor H).
-
-getbits_as_list(Num,Bytes) when is_binary(Bytes) ->
- getbits_as_list(Num,{0,Bytes},[]);
-getbits_as_list(Num,Bytes) ->
- getbits_as_list(Num,Bytes,[]).
-
-%% If buffer is empty and nothing more will be picked.
-getbits_as_list(0, B, Acc) ->
- {lists:reverse(Acc),B};
-%% If first byte in buffer is full and at least one byte will be picked,
-%% then pick one byte.
-getbits_as_list(N,{0,Bin},Acc) when N >= 8 ->
- <<B7:1,B6:1,B5:1,B4:1,B3:1,B2:1,B1:1,B0:1,Rest/binary>> = Bin,
- getbits_as_list(N-8,{0,Rest},[B0,B1,B2,B3,B4,B5,B6,B7|Acc]);
-getbits_as_list(N,{Used,Bin},Acc) when N >= 4, Used =< 4 ->
- NewUsed = Used + 4,
- Rem = 8 - NewUsed,
- <<_:Used,B3:1,B2:1,B1:1,B0:1,_:Rem, Rest/binary>> = Bin,
- NewRest = case Rem of 0 -> Rest; _ -> Bin end,
- getbits_as_list(N-4,{NewUsed rem 8,NewRest},[B0,B1,B2,B3|Acc]);
-getbits_as_list(N,{Used,Bin},Acc) when N >= 2, Used =< 6 ->
- NewUsed = Used + 2,
- Rem = 8 - NewUsed,
- <<_:Used,B1:1,B0:1,_:Rem, Rest/binary>> = Bin,
- NewRest = case Rem of 0 -> Rest; _ -> Bin end,
- getbits_as_list(N-2,{NewUsed rem 8,NewRest},[B0,B1|Acc]);
-getbits_as_list(N,{Used,Bin},Acc) when Used =< 7 ->
- NewUsed = Used + 1,
- Rem = 8 - NewUsed,
- <<_:Used,B0:1,_:Rem, Rest/binary>> = Bin,
- NewRest = case Rem of 0 -> Rest; _ -> Bin end,
- getbits_as_list(N-1,{NewUsed rem 8,NewRest},[B0|Acc]).
-
-
-getbit({7,<<_:7,B:1,Rest/binary>>}) ->
- {B,{0,Rest}};
-getbit({0,Buffer = <<B:1,_:7,_/binary>>}) ->
- {B,{1,Buffer}};
-getbit({Used,Buffer}) ->
- Unused = (8 - Used) - 1,
- <<_:Used,B:1,_:Unused,_/binary>> = Buffer,
- {B,{Used+1,Buffer}};
-getbit(Buffer) when is_binary(Buffer) ->
- getbit({0,Buffer}).
-
-
-getbits({0,Buffer},Num) when (Num rem 8) == 0 ->
- <<Bits:Num,Rest/binary>> = Buffer,
- {Bits,{0,Rest}};
-getbits({Used,Bin},Num) ->
- NumPlusUsed = Num + Used,
- NewUsed = NumPlusUsed rem 8,
- Unused = (8-NewUsed) rem 8,
- case Unused of
- 0 ->
- <<_:Used,Bits:Num,Rest/binary>> = Bin,
- {Bits,{0,Rest}};
- _ ->
- Bytes = NumPlusUsed div 8,
- <<_:Used,Bits:Num,_UBits:Unused,_/binary>> = Bin,
- <<_:Bytes/binary,Rest/binary>> = Bin,
- {Bits,{NewUsed,Rest}}
- end;
-getbits(Bin,Num) when is_binary(Bin) ->
- getbits({0,Bin},Num).
-
-
-
-% getoctet(Bytes) when is_list(Bytes) ->
-% getoctet({0,Bytes});
-% getoctet(Bytes) ->
-% %% io:format("getoctet:Buffer = ~p~n",[Bytes]),
-% getoctet1(Bytes).
-
-% getoctet1({0,[H|T]}) ->
-% {H,{0,T}};
-% getoctet1({Pos,[_,H|T]}) ->
-% {H,{0,T}}.
-
-align({0,L}) ->
- {0,L};
-align({_Pos,<<_H,T/binary>>}) ->
- {0,T};
-align(Bytes) ->
- {0,Bytes}.
-
-%% First align buffer, then pick the first Num octets.
-%% Returns octets as an integer with bit significance as in buffer.
-getoctets({0,Buffer},Num) ->
- <<Val:Num/integer-unit:8,RestBin/binary>> = Buffer,
- {Val,{0,RestBin}};
-getoctets({U,<<_Padding,Rest/binary>>},Num) when U /= 0 ->
- getoctets({0,Rest},Num);
-getoctets(Buffer,Num) when is_binary(Buffer) ->
- getoctets({0,Buffer},Num).
-% getoctets(Buffer,Num) ->
-% %% io:format("getoctets:Buffer = ~p~nNum = ~p~n",[Buffer,Num]),
-% getoctets(Buffer,Num,0).
-
-% getoctets(Buffer,0,Acc) ->
-% {Acc,Buffer};
-% getoctets(Buffer,Num,Acc) ->
-% {Oct,NewBuffer} = getoctet(Buffer),
-% getoctets(NewBuffer,Num-1,(Acc bsl 8)+Oct).
-
-% getoctets_as_list(Buffer,Num) ->
-% getoctets_as_list(Buffer,Num,[]).
-
-% getoctets_as_list(Buffer,0,Acc) ->
-% {lists:reverse(Acc),Buffer};
-% getoctets_as_list(Buffer,Num,Acc) ->
-% {Oct,NewBuffer} = getoctet(Buffer),
-% getoctets_as_list(NewBuffer,Num-1,[Oct|Acc]).
-
-%% First align buffer, then pick the first Num octets.
-%% Returns octets as a binary
-getoctets_as_bin({0,Bin},Num)->
- <<Octets:Num/binary,RestBin/binary>> = Bin,
- {Octets,{0,RestBin}};
-getoctets_as_bin({_U,Bin},Num) ->
- <<_Padding,Octets:Num/binary,RestBin/binary>> = Bin,
- {Octets,{0,RestBin}};
-getoctets_as_bin(Bin,Num) when is_binary(Bin) ->
- getoctets_as_bin({0,Bin},Num).
-
-%% same as above but returns octets as a List
-getoctets_as_list(Buffer,Num) ->
- {Bin,Buffer2} = getoctets_as_bin(Buffer,Num),
- {binary_to_list(Bin),Buffer2}.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% set_choice(Alt,Choices,Altnum) -> ListofBitSettings
-%% Alt = atom()
-%% Altnum = integer() | {integer(),integer()}% number of alternatives
-%% Choices = [atom()] | {[atom()],[atom()]}
-%% When Choices is a tuple the first list is the Rootset and the
-%% second is the Extensions and then Altnum must also be a tuple with the
-%% lengths of the 2 lists
-%%
-set_choice(Alt,{L1,L2},{Len1,_Len2}) ->
- case set_choice_tag(Alt,L1) of
- N when is_integer(N), Len1 > 1 ->
- [{bits,1,0}, % the value is in the root set
- encode_integer([{'ValueRange',{0,Len1-1}}],N)];
- N when is_integer(N) ->
- [{bits,1,0}]; % no encoding if only 0 or 1 alternative
- false ->
- [{bits,1,1}, % extension value
- case set_choice_tag(Alt,L2) of
- N2 when is_integer(N2) ->
- encode_small_number(N2);
- false ->
- unknown_choice_alt
- end]
- end;
-set_choice(Alt,L,Len) ->
- case set_choice_tag(Alt,L) of
- N when is_integer(N), Len > 1 ->
- encode_integer([{'ValueRange',{0,Len-1}}],N);
- N when is_integer(N) ->
- []; % no encoding if only 0 or 1 alternative
- false ->
- [unknown_choice_alt]
- end.
-
-set_choice_tag(Alt,Choices) ->
- set_choice_tag(Alt,Choices,0).
-
-set_choice_tag(Alt,[Alt|_Rest],Tag) ->
- Tag;
-set_choice_tag(Alt,[_H|Rest],Tag) ->
- set_choice_tag(Alt,Rest,Tag+1);
-set_choice_tag(_Alt,[],_Tag) ->
- false.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_fragmented_XXX; decode of values encoded fragmented according
-%% to ITU-T X.691 clause 10.9.3.8. The unit (XXX) is either bits, octets,
-%% characters or number of components (in a choice,sequence or similar).
-%% Buffer is a buffer {Used, Bin}.
-%% C is the constrained length.
-%% If the buffer is not aligned, this function does that.
-decode_fragmented_bits({0,Buffer},C) ->
- decode_fragmented_bits(Buffer,C,[]);
-decode_fragmented_bits({_N,<<_,Bs/binary>>},C) ->
- decode_fragmented_bits(Bs,C,[]).
-
-decode_fragmented_bits(<<3:2,Len:6,Bin/binary>>,C,Acc) ->
- {Value,Bin2} = split_binary(Bin, Len * ?'16K'),
- decode_fragmented_bits(Bin2,C,[Value,Acc]);
-decode_fragmented_bits(<<0:1,0:7,Bin/binary>>,C,Acc) ->
- BinBits = list_to_binary(lists:reverse(Acc)),
- case C of
- Int when is_integer(Int),C == size(BinBits) ->
- {BinBits,{0,Bin}};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinBits}}})
- end;
-decode_fragmented_bits(<<0:1,Len:7,Bin/binary>>,C,Acc) ->
- Result = {BinBits,{Used,_Rest}} =
- case (Len rem 8) of
- 0 ->
- <<Value:Len/binary-unit:1,Bin2/binary>> = Bin,
- {list_to_binary(lists:reverse([Value|Acc])),{0,Bin2}};
- Rem ->
- Bytes = Len div 8,
- U = 8 - Rem,
- <<Value:Bytes/binary-unit:8,Bits1:Rem,Bits2:U,Bin2/binary>> = Bin,
- {list_to_binary(lists:reverse([Bits1 bsl U,Value|Acc])),
- {Rem,<<Bits2,Bin2/binary>>}}
- end,
- case C of
- Int when is_integer(Int),C == (size(BinBits) - ((8 - Used) rem 8)) ->
- Result;
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinBits}}})
- end.
-
-
-decode_fragmented_octets({0,Bin},C) ->
- decode_fragmented_octets(Bin,C,[]).
-
-decode_fragmented_octets(<<3:2,Len:6,Bin/binary>>,C,Acc) ->
- {Value,Bin2} = split_binary(Bin,Len * ?'16K'),
- decode_fragmented_octets(Bin2,C,[Value,Acc]);
-decode_fragmented_octets(<<0:1,0:7,Bin/binary>>,C,Acc) ->
- Octets = list_to_binary(lists:reverse(Acc)),
- case C of
- Int when is_integer(Int), C == size(Octets) ->
- {Octets,{0,Bin}};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,Octets}}})
- end;
-decode_fragmented_octets(<<0:1,Len:7,Bin/binary>>,C,Acc) ->
- <<Value:Len/binary-unit:8,Bin2/binary>> = Bin,
- BinOctets = list_to_binary(lists:reverse([Value|Acc])),
- case C of
- Int when is_integer(Int),size(BinOctets) == Int ->
- {BinOctets,Bin2};
- Int when is_integer(Int) ->
- exit({error,{asn1,{illegal_value,C,BinOctets}}})
- end.
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_open_type(Constraint, Value) -> CompleteList
-%% Value = list of bytes of an already encoded value (the list must be flat)
-%% | binary
-%% Contraint = not used in this version
-%%
-encode_open_type(_C, Val) when is_list(Val) ->
- Bin = list_to_binary(Val),
- [encode_length(undefined,size(Bin)),{octets,Bin}]; % octets implies align
-encode_open_type(_C, Val) when is_binary(Val) ->
- [encode_length(undefined,size(Val)),{octets,Val}]. % octets implies align
-%% the binary_to_list is not optimal but compatible with the current solution
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_open_type(Buffer,Constraint) -> Value
-%% Constraint is not used in this version
-%% Buffer = [byte] with PER encoded data
-%% Value = [byte] with decoded data (which must be decoded again as some type)
-%%
-decode_open_type(Bytes, _C) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_bin(Bytes2,Len).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_integer(Constraint,Value,NamedNumberList) -> CompleteList
-%% encode_integer(Constraint,Value) -> CompleteList
-%% encode_integer(Constraint,{Name,Value}) -> CompleteList
-%%
-%%
-encode_integer(C,V,NamedNumberList) when is_atom(V) ->
- case lists:keysearch(V,1,NamedNumberList) of
- {value,{_,NewV}} ->
- encode_integer(C,NewV);
- _ ->
- exit({error,{asn1,{namednumber,V}}})
- end;
-encode_integer(C,V,_NamedNumberList) when is_integer(V) ->
- encode_integer(C,V);
-encode_integer(C,{Name,V},NamedNumberList) when is_atom(Name) ->
- encode_integer(C,V,NamedNumberList).
-
-encode_integer(C,{Name,Val}) when is_atom(Name) ->
- encode_integer(C,Val);
-
-encode_integer([{Rc,_Ec}],Val) when is_tuple(Rc) -> % XXX when is this invoked? First argument most often a list,...Ok this is the extension case...but it doesn't work.
- case (catch encode_integer([Rc],Val)) of
- {'EXIT',{error,{asn1,_}}} ->
- [{bits,1,1},encode_unconstrained_number(Val)];
- Encoded ->
- [{bits,1,0},Encoded]
- end;
-encode_integer(C,Val ) when is_list(C) ->
- case get_constraint(C,'SingleValue') of
- no ->
- encode_integer1(C,Val);
- V when is_integer(V),V == Val ->
- []; % a type restricted to a single value encodes to nothing
- V when is_list(V) ->
- case lists:member(Val,V) of
- true ->
- encode_integer1(C,Val);
- _ ->
- exit({error,{asn1,{illegal_value,Val}}})
- end;
- _ ->
- exit({error,{asn1,{illegal_value,Val}}})
- end.
-
-encode_integer1(C, Val) ->
- case VR = get_constraint(C,'ValueRange') of
- no ->
- encode_unconstrained_number(Val);
- {Lb,'MAX'} ->
- encode_semi_constrained_number(Lb,Val);
- %% positive with range
- {Lb,Ub} when Val >= Lb,
- Ub >= Val ->
- encode_constrained_number(VR,Val);
- _ ->
- exit({error,{asn1,{illegal_value,VR,Val}}})
- end.
-
-decode_integer(Buffer,Range,NamedNumberList) ->
- {Val,Buffer2} = decode_integer(Buffer,Range),
- case lists:keysearch(Val,2,NamedNumberList) of
- {value,{NewVal,_}} -> {NewVal,Buffer2};
- _ -> {Val,Buffer2}
- end.
-
-decode_integer(Buffer,[{Rc,_Ec}]) when is_tuple(Rc) ->
- {Ext,Buffer2} = getext(Buffer),
- case Ext of
- 0 -> decode_integer(Buffer2,[Rc]);
- 1 -> decode_unconstrained_number(Buffer2)
- end;
-decode_integer(Buffer,undefined) ->
- decode_unconstrained_number(Buffer);
-decode_integer(Buffer,C) ->
- case get_constraint(C,'SingleValue') of
- V when is_integer(V) ->
- {V,Buffer};
- V when is_list(V) ->
- {Val,Buffer2} = decode_integer1(Buffer,C),
- case lists:member(Val,V) of
- true ->
- {Val,Buffer2};
- _ ->
- exit({error,{asn1,{illegal_value,Val}}})
- end;
- _ ->
- decode_integer1(Buffer,C)
- end.
-
-decode_integer1(Buffer,C) ->
- case VR = get_constraint(C,'ValueRange') of
- no ->
- decode_unconstrained_number(Buffer);
- {Lb, 'MAX'} ->
- decode_semi_constrained_number(Buffer,Lb);
- {_,_} ->
- decode_constrained_number(Buffer,VR)
- end.
-
- % X.691:10.6 Encoding of a normally small non-negative whole number
- % Use this for encoding of CHOICE index if there is an extension marker in
- % the CHOICE
-encode_small_number({Name,Val}) when is_atom(Name) ->
- encode_small_number(Val);
-encode_small_number(Val) when Val =< 63 ->
-% [{bits,1,0},{bits,6,Val}];
- [{bits,7,Val}]; % same as above but more efficient
-encode_small_number(Val) ->
- [{bits,1,1},encode_semi_constrained_number(0,Val)].
-
-decode_small_number(Bytes) ->
- {Bit,Bytes2} = getbit(Bytes),
- case Bit of
- 0 ->
- getbits(Bytes2,6);
- 1 ->
- decode_semi_constrained_number(Bytes2,0)
- end.
-
-%% X.691:10.7 Encoding of a semi-constrained whole number
-%% might be an optimization encode_semi_constrained_number(0,Val) ->
-encode_semi_constrained_number(C,{Name,Val}) when is_atom(Name) ->
- encode_semi_constrained_number(C,Val);
-encode_semi_constrained_number({Lb,'MAX'},Val) ->
- encode_semi_constrained_number(Lb,Val);
-encode_semi_constrained_number(Lb,Val) ->
- Val2 = Val - Lb,
- Oct = eint_positive(Val2),
- Len = length(Oct),
- if
- Len < 128 ->
- {octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- true ->
- [encode_length(undefined,Len),{octets,Oct}]
- end.
-
-decode_semi_constrained_number(Bytes,{Lb,_}) ->
- decode_semi_constrained_number(Bytes,Lb);
-decode_semi_constrained_number(Bytes,Lb) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {V,Bytes3} = getoctets(Bytes2,Len),
- {V+Lb,Bytes3}.
-
-encode_constrained_number(Range,{Name,Val}) when is_atom(Name) ->
- encode_constrained_number(Range,Val);
-encode_constrained_number({Lb,Ub},Val) when Val >= Lb, Ub >= Val ->
- Range = Ub - Lb + 1,
- Val2 = Val - Lb,
- if
- Range == 1 ->
- [];
- Range == 2 ->
- {bits,1,Val2};
- Range =< 4 ->
- {bits,2,Val2};
- Range =< 8 ->
- {bits,3,Val2};
- Range =< 16 ->
- {bits,4,Val2};
- Range =< 32 ->
- {bits,5,Val2};
- Range =< 64 ->
- {bits,6,Val2};
- Range =< 128 ->
- {bits,7,Val2};
- Range =< 255 ->
- {bits,8,Val2};
- Range =< 256 ->
- {octets,[Val2]};
- Range =< 65536 ->
- {octets,<<Val2:16>>};
- Range =< (1 bsl (255*8)) ->
- Octs = binary:encode_unsigned(Val2),
- RangeOcts = binary:encode_unsigned(Range - 1),
- OctsLen = erlang:byte_size(Octs),
- RangeOctsLen = erlang:byte_size(RangeOcts),
- LengthBitsNeeded = minimum_bits(RangeOctsLen - 1),
- [{bits, LengthBitsNeeded, OctsLen - 1}, {octets, Octs}];
- true ->
- exit({not_supported,{integer_range,Range}})
- end;
-encode_constrained_number(Range,Val) ->
- exit({error,{asn1,{integer_range,Range,value,Val}}}).
-
-%% For some reason the minimum bits needed in the length field in encoding of
-%% constrained whole numbers must always be atleast 2?
-minimum_bits(N) when N < 4 -> 2;
-minimum_bits(N) when N < 8 -> 3;
-minimum_bits(N) when N < 16 -> 4;
-minimum_bits(N) when N < 32 -> 5;
-minimum_bits(N) when N < 64 -> 6;
-minimum_bits(N) when N < 128 -> 7;
-minimum_bits(_N) -> 8.
-
-decode_constrained_number(Buffer,{Lb,Ub}) ->
- Range = Ub - Lb + 1,
- % Val2 = Val - Lb,
- {Val,Remain} =
- if
- Range == 1 ->
- {0,Buffer};
- Range == 2 ->
- getbits(Buffer,1);
- Range =< 4 ->
- getbits(Buffer,2);
- Range =< 8 ->
- getbits(Buffer,3);
- Range =< 16 ->
- getbits(Buffer,4);
- Range =< 32 ->
- getbits(Buffer,5);
- Range =< 64 ->
- getbits(Buffer,6);
- Range =< 128 ->
- getbits(Buffer,7);
- Range =< 255 ->
- getbits(Buffer,8);
- Range =< 256 ->
- getoctets(Buffer,1);
- Range =< 65536 ->
- getoctets(Buffer,2);
- Range =< (1 bsl (255*8)) ->
- OList = binary:bin_to_list(binary:encode_unsigned(Range - 1)),
- RangeOctLen = length(OList),
- {Len, Bytes} = decode_length(Buffer, {1, RangeOctLen}),
- {Octs, RestBytes} = getoctets_as_list(Bytes, Len),
- {binary:decode_unsigned(binary:list_to_bin(Octs)), RestBytes};
- true ->
- exit({not_supported,{integer_range,Range}})
- end,
- {Val+Lb,Remain}.
-
-%% X.691:10.8 Encoding of an unconstrained whole number
-
-encode_unconstrained_number(Val) when Val >= 0 ->
- Oct = eint(Val,[]),
- Len = length(Oct),
- if
- Len < 128 ->
- {octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- true ->
- [encode_length(undefined,Len),{octets,Oct}]
- end;
-encode_unconstrained_number(Val) -> % negative
- Oct = enint(Val,[]),
- Len = length(Oct),
- if
- Len < 128 ->
- {octets,[Len|Oct]}; % equiv with encode_length(undefined,Len) but faster
- true ->
- [encode_length(undefined,Len),{octets,Oct}]
- end.
-
-
-%% used for positive Values which don't need a sign bit
-%% returns a binary
-eint_positive(Val) ->
- case eint(Val,[]) of
- [0,B1|T] ->
- [B1|T];
- T ->
- T
- end.
-
-
-eint(0, [B|Acc]) when B < 128 ->
- [B|Acc];
-eint(N, Acc) ->
- eint(N bsr 8, [N band 16#ff| Acc]).
-
-enint(-1, [B1|T]) when B1 > 127 ->
- [B1|T];
-enint(N, Acc) ->
- enint(N bsr 8, [N band 16#ff|Acc]).
-
-decode_unconstrained_number(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Ints,Bytes3} = getoctets_as_list(Bytes2,Len),
- {dec_integer(Ints),Bytes3}.
-
-dec_integer(Ints) when hd(Ints) band 255 =< 127 -> %% Positive number
- decpint(Ints, 8 * (length(Ints) - 1));
-dec_integer(Ints) -> %% Negative
- decnint(Ints, 8 * (length(Ints) - 1)).
-
-decpint([Byte|Tail], Shift) ->
- (Byte bsl Shift) bor decpint(Tail, Shift-8);
-decpint([], _) -> 0.
-
-decnint([Byte|Tail], Shift) ->
- (-128 + (Byte band 127) bsl Shift) bor decpint(Tail, Shift-8).
-
-% minimum_octets(Val) ->
-% minimum_octets(Val,[]).
-
-% minimum_octets(Val,Acc) when Val > 0 ->
-% minimum_octets((Val bsr 8),[Val band 16#FF|Acc]);
-% minimum_octets(0,Acc) ->
-% Acc.
-
-
-%% X.691:10.9 Encoding of a length determinant
-%%encode_small_length(undefined,Len) -> % null means no UpperBound
-%% encode_small_number(Len).
-
-%% X.691:10.9.3.5
-%% X.691:10.9.3.7
-encode_length(undefined,Len) -> % un-constrained
- if
- Len < 128 ->
- {octets,[Len]};
- Len < 16384 ->
- {octets,<<2:2,Len:14>>};
- true -> % should be able to endode length >= 16384
- exit({error,{asn1,{encode_length,{nyi,above_16k}}}})
- end;
-
-encode_length({0,'MAX'},Len) ->
- encode_length(undefined,Len);
-encode_length(Vr={Lb,Ub},Len) when Ub =< 65535 ,Lb >= 0 -> % constrained
- encode_constrained_number(Vr,Len);
-encode_length({Lb,_Ub},Len) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- encode_length(undefined,Len);
-encode_length({Vr={Lb,Ub},Ext},Len)
- when Ub =< 65535 ,Lb >= 0, Len=<Ub, is_list(Ext) ->
- %% constrained extensible
- [{bits,1,0},encode_constrained_number(Vr,Len)];
-encode_length({{Lb,_Ub},Ext},Len) when is_list(Ext) ->
- [{bits,1,1},encode_semi_constrained_number(Lb,Len)];
-encode_length(SingleValue,_Len) when is_integer(SingleValue) ->
- [].
-
-%% X.691 10.9.3.4 (only used for length of bitmap that prefixes extension
-%% additions in a sequence or set
-encode_small_length(Len) when Len =< 64 ->
-%% [{bits,1,0},{bits,6,Len-1}];
- {bits,7,Len-1}; % the same as above but more efficient
-encode_small_length(Len) ->
- [{bits,1,1},encode_length(undefined,Len)].
-
-% decode_small_length({Used,<<_:Used,0:1,Num:6,_:((8-Used+1) rem 8),Rest/binary>>}) ->
-% case Buffer of
-% <<_:Used,0:1,Num:6,_:((8-Used+1) rem 8),Rest/binary>> ->
-% {Num,
-% case getbit(Buffer) of
-% {0,Remain} ->
-% {Bits,Remain2} = getbits(Remain,6),
-% {Bits+1,Remain2};
-% {1,Remain} ->
-% decode_length(Remain,undefined)
-% end.
-
-decode_small_length(Buffer) ->
- case getbit(Buffer) of
- {0,Remain} ->
- {Bits,Remain2} = getbits(Remain,6),
- {Bits+1,Remain2};
- {1,Remain} ->
- decode_length(Remain,undefined)
- end.
-
-decode_length(Buffer) ->
- decode_length(Buffer,undefined).
-
-decode_length(Buffer,undefined) -> % un-constrained
- {0,Buffer2} = align(Buffer),
- case Buffer2 of
- <<0:1,Oct:7,Rest/binary>> ->
- {Oct,{0,Rest}};
- <<2:2,Val:14,Rest/binary>> ->
- {Val,{0,Rest}};
- <<3:2,_:14,_Rest/binary>> ->
- %% this case should be fixed
- exit({error,{asn1,{decode_length,{nyi,above_16k}}}})
- end;
-%% {Bits,_} = getbits(Buffer2,2),
-% case Bits of
-% 2 ->
-% {Val,Bytes3} = getoctets(Buffer2,2),
-% {(Val band 16#3FFF),Bytes3};
-% 3 ->
-% exit({error,{asn1,{decode_length,{nyi,above_16k}}}});
-% _ ->
-% {Val,Bytes3} = getoctet(Buffer2),
-% {Val band 16#7F,Bytes3}
-% end;
-
-decode_length(Buffer,{Lb,Ub}) when Ub =< 65535 ,Lb >= 0 -> % constrained
- decode_constrained_number(Buffer,{Lb,Ub});
-decode_length(Buffer,{Lb,_}) when is_integer(Lb), Lb >= 0 -> % Ub > 65535
- decode_length(Buffer,undefined);
-decode_length(Buffer,{VR={_Lb,_Ub},Ext}) when is_list(Ext) ->
- case getbit(Buffer) of
- {0,Buffer2} ->
- decode_length(Buffer2, VR);
- {1,Buffer2} ->
- decode_length(Buffer2, undefined)
- end;
-%% {0,Buffer2} = getbit(Buffer),
-%% decode_length(Buffer2, VR);
-
-
-%When does this case occur with {_,_Lb,Ub} ??
-% X.691:10.9.3.5
-decode_length({Used,Bin},{_,_Lb,_Ub}) -> %when Len =< 127 -> % Unconstrained or large Ub NOTE! this case does not cover case when Ub > 65535
- Unused = (8-Used) rem 8,
- case Bin of
- <<_:Used,0:1,Val:7,R:Unused,Rest/binary>> ->
- {Val,{Used,<<R,Rest/binary>>}};
- <<_:Used,_:Unused,2:2,Val:14,Rest/binary>> ->
- {Val, {0,Rest}};
- <<_:Used,_:Unused,3:2,_:14,_Rest/binary>> ->
- exit({error,{asn1,{decode_length,{nyi,length_above_64K}}}})
- end;
-% decode_length(Buffer,{_,_Lb,Ub}) -> %when Len =< 127 -> % Unconstrained or large Ub
-% case getbit(Buffer) of
-% {0,Remain} ->
-% getbits(Remain,7);
-% {1,Remain} ->
-% {Val,Remain2} = getoctets(Buffer,2),
-% {Val band 2#0111111111111111, Remain2}
-% end;
-decode_length(Buffer,SingleValue) when is_integer(SingleValue) ->
- {SingleValue,Buffer}.
-
-
- % X.691:11
-encode_boolean(true) ->
- {bits,1,1};
-encode_boolean(false) ->
- {bits,1,0};
-encode_boolean({Name,Val}) when is_atom(Name) ->
- encode_boolean(Val);
-encode_boolean(Val) ->
- exit({error,{asn1,{encode_boolean,Val}}}).
-
-decode_boolean(Buffer) -> %when record(Buffer,buffer)
- case getbit(Buffer) of
- {1,Remain} -> {true,Remain};
- {0,Remain} -> {false,Remain}
- end.
-
-
-%% ENUMERATED with extension marker
-decode_enumerated(Buffer,C,{Ntup1,Ntup2}) when is_tuple(Ntup1), is_tuple(Ntup2) ->
- {Ext,Buffer2} = getext(Buffer),
- case Ext of
- 0 -> % not an extension value
- {Val,Buffer3} = decode_integer(Buffer2,C),
- case catch (element(Val+1,Ntup1)) of
- NewVal when is_atom(NewVal) -> {NewVal,Buffer3};
- _Error -> exit({error,{asn1,{decode_enumerated,{Val,[Ntup1,Ntup2]}}}})
- end;
- 1 -> % this an extension value
- {Val,Buffer3} = decode_small_number(Buffer2),
- case catch (element(Val+1,Ntup2)) of
- NewVal when is_atom(NewVal) -> {NewVal,Buffer3};
- _ -> {{asn1_enum,Val},Buffer3}
- end
- end;
-
-decode_enumerated(Buffer,C,NamedNumberTup) when is_tuple(NamedNumberTup) ->
- {Val,Buffer2} = decode_integer(Buffer,C),
- case catch (element(Val+1,NamedNumberTup)) of
- NewVal when is_atom(NewVal) -> {NewVal,Buffer2};
- _Error -> exit({error,{asn1,{decode_enumerated,{Val,NamedNumberTup}}}})
- end.
-
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-%% Bitstring value, ITU_T X.690 Chapter 8.5
-%%===============================================================================
-%%===============================================================================
-%%===============================================================================
-
-%%===============================================================================
-%% encode bitstring value
-%%===============================================================================
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% bitstring NamedBitList
-%% Val can be of:
-%% - [identifiers] where only named identifers are set to one,
-%% the Constraint must then have some information of the
-%% bitlength.
-%% - [list of ones and zeroes] all bits
-%% - integer value representing the bitlist
-%% C is constraint Len, only valid when identifiers
-
-
-%% when the value is a list of {Unused,BinBits}, where
-%% Unused = integer(),
-%% BinBits = binary().
-
-encode_bit_string(C,Bin={Unused,BinBits},NamedBitList) when is_integer(Unused),
- is_binary(BinBits) ->
- encode_bin_bit_string(C,Bin,NamedBitList);
-
-%% when the value is a list of named bits
-encode_bit_string(C, LoNB=[FirstVal | _RestVal], NamedBitList) when is_atom(FirstVal) ->
- ToSetPos = get_all_bitposes(LoNB, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string(C,BitList,NamedBitList);
-
-encode_bit_string(C, BL=[{bit,_No} | _RestVal], NamedBitList) ->
- ToSetPos = get_all_bitposes(BL, NamedBitList, []),
- BitList = make_and_set_list(ToSetPos,0),
- encode_bit_string(C,BitList,NamedBitList);
-
-%% when the value is a list of ones and zeroes
-
-% encode_bit_string(C, BitListValue, NamedBitList) when is_list(BitListValue) ->
-% Bl1 =
-% case NamedBitList of
-% [] -> % dont remove trailing zeroes
-% BitListValue;
-% _ -> % first remove any trailing zeroes
-% lists:reverse(lists:dropwhile(fun(0)->true;(1)->false end,
-% lists:reverse(BitListValue)))
-% end,
-% BitList = [{bit,X} || X <- Bl1],
-% %% BListLen = length(BitList),
-% case get_constraint(C,'SizeConstraint') of
-% 0 -> % fixed length
-% []; % nothing to encode
-% V when is_integer(V),V=<16 -> % fixed length 16 bits or less
-% pad_list(V,BitList);
-% V when is_integer(V) -> % fixed length 16 bits or more
-% [align,pad_list(V,BitList)]; % should be another case for V >= 65537
-% {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
-% [encode_length({Lb,Ub},length(BitList)),align,BitList];
-% no ->
-% [encode_length(undefined,length(BitList)),align,BitList];
-% Sc -> % extension marker
-% [encode_length(Sc,length(BitList)),align,BitList]
-% end;
-encode_bit_string(C, BitListValue, NamedBitList) when is_list(BitListValue) ->
- BitListToBinary =
- %% fun that transforms a list of 1 and 0 to a tuple:
- %% {UnusedBitsInLastByte, Binary}
- fun([1|T],Acc,N,Fun) ->
- Fun(T,(Acc bsl 1)+1,N+1,Fun);
- ([0|T],Acc,N,Fun) ->
- Fun(T,(Acc bsl 1),N+1,Fun);
- ([_H|_T],_,_,_) ->
- exit({error,{asn1,{bitstring_bitlist,BitListValue}}});
- ([],Acc,N,_) ->
- Unused = (8 - (N rem 8)) rem 8,
- {Unused,<<Acc:N,0:Unused>>}
- end,
- UnusedAndBin =
- case NamedBitList of
- [] -> % dont remove trailing zeroes
- BitListToBinary(BitListValue,0,0,BitListToBinary);
- _ ->
- BitListToBinary(lists:reverse(
- lists:dropwhile(fun(0)->true;(_)->false end,
- lists:reverse(BitListValue))),
- 0,0,BitListToBinary)
- end,
- encode_bin_bit_string(C,UnusedAndBin,NamedBitList);
-
-%% when the value is an integer
-encode_bit_string(C, IntegerVal, NamedBitList) when is_integer(IntegerVal)->
- BitList = int_to_bitlist(IntegerVal),
- encode_bit_string(C,BitList,NamedBitList);
-
-%% when the value is a tuple
-encode_bit_string(C,{Name,Val}, NamedBitList) when is_atom(Name) ->
- encode_bit_string(C,Val,NamedBitList).
-
-
-%% encode_bin_bit_string/3, when value is a tuple of Unused and BinBits.
-%% Unused = integer(),i.e. number unused bits in least sign. byte of
-%% BinBits = binary().
-
-
-encode_bin_bit_string(C,UnusedAndBin={_Unused,_BinBits},NamedBitList) ->
- Constr = get_constraint(C,'SizeConstraint'),
- UnusedAndBin1 = {Unused1,Bin1} =
- remove_trailing_bin(NamedBitList,UnusedAndBin,lower_bound(Constr)),
- case Constr of
- 0 ->
- [];
- V when is_integer(V),V=<16 ->
- {Unused2,Bin2} = pad_list(V,UnusedAndBin1),
- <<BitVal:V,_:Unused2>> = Bin2,
- {bits,V,BitVal};
- V when is_integer(V) ->
- [align, pad_list(V, UnusedAndBin1)];
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- [encode_length({Lb,Ub},size(Bin1)*8 - Unused1),
- align,UnusedAndBin1];
- {{Fix,Fix},L} when is_integer(Fix),is_list(L) ->
- %% X.691 � 15.6, the rest of this paragraph is covered by
- %% the last, ie. Sc, clause in this case
- case (size(Bin1)*8)-Unused1 of
- Size when Size =< Fix, Fix =< 16 ->
- {Unused2,Bin2} = pad_list(Fix,UnusedAndBin),
- <<BitVal:Fix,_:Unused2>> = Bin2,
- [{bits,1,0},{bits,Fix,BitVal}];
- Size when Size =< Fix ->
- [{bits,1,0},align, pad_list(Fix, UnusedAndBin1)];
- Size ->
- [{bits,1,1},encode_length(undefined,Size),
- align,UnusedAndBin1]
- end;
- no ->
- [encode_length(undefined,size(Bin1)*8 - Unused1),
- align,UnusedAndBin1];
- Sc ->
- [encode_length(Sc,size(Bin1)*8 - Unused1),
- align,UnusedAndBin1]
- end.
-
-
-remove_trailing_bin([], {Unused,Bin},_) ->
- {Unused,Bin};
-remove_trailing_bin(_NamedNumberList,{_Unused,<<>>},C) ->
- case C of
- Int when is_integer(Int),Int > 0 ->
- %% this padding see OTP-4353
- pad_list(Int,{0,<<>>});
- _ -> {0,<<>>}
- end;
-remove_trailing_bin(NamedNumberList, {_Unused,Bin},C) ->
- Size = size(Bin)-1,
- <<Bfront:Size/binary, LastByte:8>> = Bin,
- %% clear the Unused bits to be sure
- Unused1 = trailingZeroesInNibble(LastByte band 15),
- Unused2 =
- case Unused1 of
- 4 ->
- 4 + trailingZeroesInNibble(LastByte bsr 4);
- _ -> Unused1
- end,
- case Unused2 of
- 8 ->
- remove_trailing_bin(NamedNumberList,{0,Bfront},C);
- _ ->
- case C of
- Int when is_integer(Int),Int > ((size(Bin)*8)-Unused2) ->
- %% this padding see OTP-4353
- pad_list(Int,{Unused2,Bin});
- _ -> {Unused2,Bin}
- end
- end.
-
-
-trailingZeroesInNibble(0) ->
- 4;
-trailingZeroesInNibble(1) ->
- 0;
-trailingZeroesInNibble(2) ->
- 1;
-trailingZeroesInNibble(3) ->
- 0;
-trailingZeroesInNibble(4) ->
- 2;
-trailingZeroesInNibble(5) ->
- 0;
-trailingZeroesInNibble(6) ->
- 1;
-trailingZeroesInNibble(7) ->
- 0;
-trailingZeroesInNibble(8) ->
- 3;
-trailingZeroesInNibble(9) ->
- 0;
-trailingZeroesInNibble(10) ->
- 1;
-trailingZeroesInNibble(11) ->
- 0;
-trailingZeroesInNibble(12) -> %#1100
- 2;
-trailingZeroesInNibble(13) ->
- 0;
-trailingZeroesInNibble(14) ->
- 1;
-trailingZeroesInNibble(15) ->
- 0.
-
-lower_bound({{Lb,_},_}) when is_integer(Lb) ->
- Lb;
-lower_bound({Lb,_}) when is_integer(Lb) ->
- Lb;
-lower_bound(C) ->
- C.
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a tuple {Unused,Bits}. Unused is the number of unused
-%% bits, least significant bits in the last byte of Bits. Bits is
-%% the BIT STRING represented as a binary.
-%%
-decode_compact_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- 0 -> % fixed length
- {{8,0},Buffer};
- V when is_integer(V),V=<16 -> %fixed length 16 bits or less
- compact_bit_string(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 -> %fixed length > 16 bits
- Bytes2 = align(Buffer),
- compact_bit_string(Bytes2,V,NamedNumberList);
- V when is_integer(V) -> % V > 65536 => fragmented value
- {Bin,Buffer2} = decode_fragmented_bits(Buffer,V),
- case Buffer2 of
- {0,_} -> {{0,Bin},Buffer2};
- {U,_} -> {{8-U,Bin},Buffer2}
- end;
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- no ->
- %% This case may demand decoding of fragmented length/value
- {Len,Bytes2} = decode_length(Buffer,undefined),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- {{Fix,Fix},L} = Sc when is_list(L), is_integer(Fix), Fix =< 16 ->
- %% X.691 �15.6, special case of extension marker
- case decode_length(Buffer,Sc) of
- {Len,Bytes2} when Len > Fix ->
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} ->
- compact_bit_string(Bytes2,Len,NamedNumberList)
- end;
- Sc ->
- {Len,Bytes2} = decode_length(Buffer,Sc),
- Bytes3 = align(Bytes2),
- compact_bit_string(Bytes3,Len,NamedNumberList)
- end.
-
-
-%%%%%%%%%%%%%%%
-%% The result is presented as a list of named bits (if possible)
-%% else as a list of 0 and 1.
-%%
-decode_bit_string(Buffer, C, NamedNumberList) ->
- case get_constraint(C,'SizeConstraint') of
- {Lb,Ub} when is_integer(Lb),is_integer(Ub) ->
- {Len,Bytes2} = decode_length(Buffer,{Lb,Ub}),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- no ->
- {Len,Bytes2} = decode_length(Buffer,undefined),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- 0 -> % fixed length
- {[],Buffer}; % nothing to encode
- V when is_integer(V),V=<16 -> % fixed length 16 bits or less
- bit_list_or_named(Buffer,V,NamedNumberList);
- V when is_integer(V),V=<65536 ->
- Bytes2 = align(Buffer),
- bit_list_or_named(Bytes2,V,NamedNumberList);
- V when is_integer(V) ->
- Bytes2 = align(Buffer),
- {BinBits,_} = decode_fragmented_bits(Bytes2,V),
- bit_list_or_named(BinBits,V,NamedNumberList);
- {{Fix,Fix},L} = Sc when is_list(L), is_integer(Fix), Fix =< 16 ->
- %% X.691 �15.6, special case of extension marker
- case decode_length(Buffer,Sc) of
- {Len,Bytes2} when Len > Fix ->
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} when Len > 16 ->
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList);
- {Len,Bytes2} ->
- bit_list_or_named(Bytes2,Len,NamedNumberList)
- end;
- Sc -> %% X.691 �15.6, extension marker
- {Len,Bytes2} = decode_length(Buffer,Sc),
- Bytes3 = align(Bytes2),
- bit_list_or_named(Bytes3,Len,NamedNumberList)
- end.
-
-
-%% if no named bits are declared we will return a
-%% {Unused,Bits}. Unused = integer(),
-%% Bits = binary().
-compact_bit_string(Buffer,Len,[]) ->
- getbits_as_binary(Len,Buffer); % {{Unused,BinBits},NewBuffer}
-compact_bit_string(Buffer,Len,NamedNumberList) ->
- bit_list_or_named(Buffer,Len,NamedNumberList).
-
-
-%% if no named bits are declared we will return a
-%% BitList = [0 | 1]
-
-bit_list_or_named(Buffer,Len,[]) ->
- getbits_as_list(Len,Buffer);
-
-%% if there are named bits declared we will return a named
-%% BitList where the names are atoms and unnamed bits represented
-%% as {bit,Pos}
-%% BitList = [atom() | {bit,Pos}]
-%% Pos = integer()
-
-bit_list_or_named(Buffer,Len,NamedNumberList) ->
- {BitList,Rest} = getbits_as_list(Len,Buffer),
- {bit_list_or_named1(0,BitList,NamedNumberList,[]), Rest}.
-
-bit_list_or_named1(Pos,[0|Bt],Names,Acc) ->
- bit_list_or_named1(Pos+1,Bt,Names,Acc);
-bit_list_or_named1(Pos,[1|Bt],Names,Acc) ->
- case lists:keysearch(Pos,2,Names) of
- {value,{Name,_}} ->
- bit_list_or_named1(Pos+1,Bt,Names,[Name|Acc]);
- _ ->
- bit_list_or_named1(Pos+1,Bt,Names,[{bit,Pos}|Acc])
- end;
-bit_list_or_named1(_,[],_,Acc) ->
- lists:reverse(Acc).
-
-
-
-%%%%%%%%%%%%%%%
-%%
-
-int_to_bitlist(Int) when is_integer(Int), Int > 0 ->
- [Int band 1 | int_to_bitlist(Int bsr 1)];
-int_to_bitlist(0) ->
- [].
-
-
-%%%%%%%%%%%%%%%%%%
-%% get_all_bitposes([list of named bits to set], named_bit_db, []) ->
-%% [sorted_list_of_bitpositions_to_set]
-
-get_all_bitposes([{bit,ValPos}|Rest], NamedBitList, Ack) ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack ]);
-
-get_all_bitposes([Val | Rest], NamedBitList, Ack) ->
- case lists:keysearch(Val, 1, NamedBitList) of
- {value, {_ValName, ValPos}} ->
- get_all_bitposes(Rest, NamedBitList, [ValPos | Ack]);
- _ ->
- exit({error,{asn1, {bitstring_namedbit, Val}}})
- end;
-get_all_bitposes([], _NamedBitList, Ack) ->
- lists:sort(Ack).
-
-%%%%%%%%%%%%%%%%%%
-%% make_and_set_list([list of positions to set to 1])->
-%% returns list with all in SetPos set.
-%% in positioning in list the first element is 0, the second 1 etc.., but
-%%
-
-make_and_set_list([XPos|SetPos], XPos) ->
- [1 | make_and_set_list(SetPos, XPos + 1)];
-make_and_set_list([Pos|SetPos], XPos) ->
- [0 | make_and_set_list([Pos | SetPos], XPos + 1)];
-make_and_set_list([], _) ->
- [].
-
-%%%%%%%%%%%%%%%%%
-%% pad_list(N,BitList) -> PaddedList
-%% returns a padded (with trailing {bit,0} elements) list of length N
-%% if Bitlist contains more than N significant bits set an exit asn1_error
-%% is generated
-
-pad_list(N,In={Unused,Bin}) ->
- pad_list(N, size(Bin)*8 - Unused, In).
-
-pad_list(N,Size,In={_,_}) when N < Size ->
- exit({error,{asn1,{range_error,{bit_string,In}}}});
-pad_list(N,Size,{Unused,Bin}) when N > Size, Unused > 0 ->
- pad_list(N,Size+1,{Unused-1,Bin});
-pad_list(N,Size,{_Unused,Bin}) when N > Size ->
- pad_list(N,Size+1,{7,<<Bin/binary,0>>});
-pad_list(N,N,In={_,_}) ->
- In.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% X.691:16
-%% encode_octet_string(Constraint,ExtensionMarker,Val)
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-encode_octet_string(C,Val) ->
- encode_octet_string2(C,Val).
-
-encode_octet_string2(C,{_Name,Val}) ->
- encode_octet_string2(C,Val);
-encode_octet_string2(C,Val) ->
- case get_constraint(C,'SizeConstraint') of
- 0 ->
- [];
- 1 ->
- [V] = Val,
- {bits,8,V};
- 2 ->
- [V1,V2] = Val,
- [{bits,8,V1},{bits,8,V2}];
- Sv when Sv =<65535, Sv == length(Val) -> % fixed length
- {octets,Val};
- {Lb,Ub} ->
- [encode_length({Lb,Ub},length(Val)),{octets,Val}];
- Sv when is_list(Sv) ->
- [encode_length({hd(Sv),lists:max(Sv)},length(Val)),{octets,Val}];
- no ->
- [encode_length(undefined,length(Val)),{octets,Val}]
- end.
-
-decode_octet_string(Bytes,Range) ->
- decode_octet_string(Bytes,Range,false).
-
-decode_octet_string(Bytes,C,false) ->
- case get_constraint(C,'SizeConstraint') of
- 0 ->
- {[],Bytes};
- 1 ->
- {B1,Bytes2} = getbits(Bytes,8),
- {[B1],Bytes2};
- 2 ->
- {Bs,Bytes2}= getbits(Bytes,16),
- {binary_to_list(<<Bs:16>>),Bytes2};
- {_,0} ->
- {[],Bytes};
- Sv when is_integer(Sv), Sv =<65535 -> % fixed length
- getoctets_as_list(Bytes,Sv);
- Sv when is_integer(Sv) -> % fragmented encoding
- Bytes2 = align(Bytes),
- decode_fragmented_octets(Bytes2,Sv);
- {Lb,Ub} ->
- {Len,Bytes2} = decode_length(Bytes,{Lb,Ub}),
- getoctets_as_list(Bytes2,Len);
- Sv when is_list(Sv) ->
- {Len,Bytes2} = decode_length(Bytes,{hd(Sv),lists:max(Sv)}),
- getoctets_as_list(Bytes2,Len);
- no ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_list(Bytes2,Len)
- end.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% Restricted char string types
-%% (NumericString, PrintableString,VisibleString,IA5String,BMPString,UniversalString)
-%% X.691:26 and X.680:34-36
-%%encode_restricted_string(aligned,'BMPString',Constraints,Extension,Val)
-
-
-encode_restricted_string(aligned,{Name,Val}) when is_atom(Name) ->
- encode_restricted_string(aligned,Val);
-
-encode_restricted_string(aligned,Val) when is_list(Val)->
- [encode_length(undefined,length(Val)),{octets,Val}].
-
-encode_known_multiplier_string(aligned,StringType,C,_Ext,{Name,Val}) when is_atom(Name) ->
- encode_known_multiplier_string(aligned,StringType,C,false,Val);
-
-encode_known_multiplier_string(aligned,StringType,C,_Ext,Val) ->
- Result = chars_encode(C,StringType,Val),
- NumBits = get_NumBits(C,StringType),
- case get_constraint(C,'SizeConstraint') of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- Result;
- 0 ->
- [];
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- [align,Result];
- {Ub,Lb} ->
- [encode_length({Ub,Lb},length(Val)),align,Result];
- Vl when is_list(Vl) ->
- [encode_length({lists:min(Vl),lists:max(Vl)},length(Val)),align,Result];
- no ->
- [encode_length(undefined,length(Val)),align,Result]
- end.
-
-decode_restricted_string(Bytes,aligned) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- getoctets_as_list(Bytes2,Len).
-
-decode_known_multiplier_string(Bytes,aligned,StringType,C,_Ext) ->
- NumBits = get_NumBits(C,StringType),
- case get_constraint(C,'SizeConstraint') of
- Ub when is_integer(Ub), Ub*NumBits =< 16 ->
- chars_decode(Bytes,NumBits,StringType,C,Ub);
- Ub when is_integer(Ub),Ub =<65535 -> % fixed length
- Bytes1 = align(Bytes),
- chars_decode(Bytes1,NumBits,StringType,C,Ub);
- 0 ->
- {[],Bytes};
- Vl when is_list(Vl) ->
- {Len,Bytes1} = decode_length(Bytes,{hd(Vl),lists:max(Vl)}),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,C,Len);
- no ->
- {Len,Bytes1} = decode_length(Bytes,undefined),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,C,Len);
- {Lb,Ub}->
- {Len,Bytes1} = decode_length(Bytes,{Lb,Ub}),
- Bytes2 = align(Bytes1),
- chars_decode(Bytes2,NumBits,StringType,C,Len)
- end.
-
-
-encode_NumericString(C,Val) ->
- encode_known_multiplier_string(aligned,'NumericString',C,false,Val).
-decode_NumericString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'NumericString',C,false).
-
-encode_PrintableString(C,Val) ->
- encode_known_multiplier_string(aligned,'PrintableString',C,false,Val).
-decode_PrintableString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'PrintableString',C,false).
-
-encode_VisibleString(C,Val) -> % equivalent with ISO646String
- encode_known_multiplier_string(aligned,'VisibleString',C,false,Val).
-decode_VisibleString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'VisibleString',C,false).
-
-encode_IA5String(C,Val) ->
- encode_known_multiplier_string(aligned,'IA5String',C,false,Val).
-decode_IA5String(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'IA5String',C,false).
-
-encode_BMPString(C,Val) ->
- encode_known_multiplier_string(aligned,'BMPString',C,false,Val).
-decode_BMPString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'BMPString',C,false).
-
-encode_UniversalString(C,Val) ->
- encode_known_multiplier_string(aligned,'UniversalString',C,false,Val).
-decode_UniversalString(Bytes,C) ->
- decode_known_multiplier_string(Bytes,aligned,'UniversalString',C,false).
-
-
-%% end of known-multiplier strings for which PER visible constraints are
-%% applied
-
-encode_GeneralString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_GeneralString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_GraphicString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_GraphicString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_ObjectDescriptor(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_ObjectDescriptor(Bytes) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_TeletexString(_C,Val) -> % equivalent with T61String
- encode_restricted_string(aligned,Val).
-decode_TeletexString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-encode_VideotexString(_C,Val) ->
- encode_restricted_string(aligned,Val).
-decode_VideotexString(Bytes,_C) ->
- decode_restricted_string(Bytes,aligned).
-
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% getBMPChars(Bytes,Len) ->{BMPcharList,RemainingBytes}
-%%
-getBMPChars(Bytes,1) ->
- {O1,Bytes2} = getbits(Bytes,8),
- {O2,Bytes3} = getbits(Bytes2,8),
- if
- O1 == 0 ->
- {[O2],Bytes3};
- true ->
- {[{0,0,O1,O2}],Bytes3}
- end;
-getBMPChars(Bytes,Len) ->
- getBMPChars(Bytes,Len,[]).
-
-getBMPChars(Bytes,0,Acc) ->
- {lists:reverse(Acc),Bytes};
-getBMPChars(Bytes,Len,Acc) ->
- {Octs,Bytes1} = getoctets_as_list(Bytes,2),
- case Octs of
- [0,O2] ->
- getBMPChars(Bytes1,Len-1,[O2|Acc]);
- [O1,O2]->
- getBMPChars(Bytes1,Len-1,[{0,0,O1,O2}|Acc])
- end.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% chars_encode(C,StringType,Value) -> ValueList
-%%
-%% encodes chars according to the per rules taking the constraint PermittedAlphabet
-%% into account.
-%% This function does only encode the value part and NOT the length
-
-chars_encode(C,StringType,Value) ->
- case {StringType,get_constraint(C,'PermittedAlphabet')} of
- {'UniversalString',{_,_Sv}} ->
- exit({error,{asn1,{'not implemented',"UniversalString with PermittedAlphabet constraint"}}});
- {'BMPString',{_,_Sv}} ->
- exit({error,{asn1,{'not implemented',"BMPString with PermittedAlphabet constraint"}}});
- _ ->
- {NumBits,CharOutTab} = {get_NumBits(C,StringType),get_CharOutTab(C,StringType)},
- chars_encode2(Value,NumBits,CharOutTab)
- end.
-
-chars_encode2([H|T],NumBits,{Min,Max,notab}) when H =< Max, H >= Min ->
- [{bits,NumBits,H-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([H|T],NumBits,{Min,Max,Tab}) when H =< Max, H >= Min ->
- [{bits,NumBits,exit_if_false(H,element(H-Min+1,Tab))}|chars_encode2(T,NumBits,{Min,Max,Tab})];
-chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,notab}) ->
- %% no value range check here (ought to be, but very expensive)
-% [{bits,NumBits,(A*B*C*D)-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
- [{bits,NumBits,((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min}|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([{A,B,C,D}|T],NumBits,{Min,Max,Tab}) ->
- %% no value range check here (ought to be, but very expensive)
-% [{bits,NumBits,element((A*B*C*D)-Min,Tab)}|chars_encode2(T,NumBits,{Min,Max,notab})];
- [{bits,NumBits,exit_if_false({A,B,C,D},element(((((((A bsl 8)+B) bsl 8)+C) bsl 8)+D)-Min,Tab))}|chars_encode2(T,NumBits,{Min,Max,notab})];
-chars_encode2([H|_T],_,{_,_,_}) ->
- exit({error,{asn1,{illegal_char_value,H}}});
-chars_encode2([],_,_) ->
- [].
-
-exit_if_false(V,false)->
- exit({error,{asn1,{"illegal value according to Permitted alphabet constraint",V}}});
-exit_if_false(_,V) ->V.
-
-
-get_NumBits(C,StringType) ->
- case get_constraint(C,'PermittedAlphabet') of
- {'SingleValue',Sv} ->
- charbits(length(Sv),aligned);
- no ->
- case StringType of
- 'IA5String' ->
- charbits(128,aligned); % 16#00..16#7F
- 'VisibleString' ->
- charbits(95,aligned); % 16#20..16#7E
- 'PrintableString' ->
- charbits(74,aligned); % [$\s,$',$(,$),$+,$,,$-,$.,$/,"0123456789",$:,$=,$?,$A..$Z,$a..$z
- 'NumericString' ->
- charbits(11,aligned); % $ ,"0123456789"
- 'UniversalString' ->
- 32;
- 'BMPString' ->
- 16
- end
- end.
-
-%%Maybe used later
-%%get_MaxChar(C,StringType) ->
-%% case get_constraint(C,'PermittedAlphabet') of
-%% {'SingleValue',Sv} ->
-%% lists:nth(length(Sv),Sv);
-%% no ->
-%% case StringType of
-%% 'IA5String' ->
-%% 16#7F; % 16#00..16#7F
-%% 'VisibleString' ->
-%% 16#7E; % 16#20..16#7E
-%% 'PrintableString' ->
-%% $z; % [$\s,$',$(,$),$+,$,,$-,$.,$/,"0123456789",$:,$=,$?,$A..$Z,$a..$z
-%% 'NumericString' ->
-%% $9; % $ ,"0123456789"
-%% 'UniversalString' ->
-%% 16#ffffffff;
-%% 'BMPString' ->
-%% 16#ffff
-%% end
-%% end.
-
-%%Maybe used later
-%%get_MinChar(C,StringType) ->
-%% case get_constraint(C,'PermittedAlphabet') of
-%% {'SingleValue',Sv} ->
-%% hd(Sv);
-%% no ->
-%% case StringType of
-%% 'IA5String' ->
-%% 16#00; % 16#00..16#7F
-%% 'VisibleString' ->
-%% 16#20; % 16#20..16#7E
-%% 'PrintableString' ->
-%% $\s; % [$\s,$',$(,$),$+,$,,$-,$.,$/,"0123456789",$:,$=,$?,$A..$Z,$a..$z
-%% 'NumericString' ->
-%% $\s; % $ ,"0123456789"
-%% 'UniversalString' ->
-%% 16#00;
-%% 'BMPString' ->
-%% 16#00
-%% end
-%% end.
-
-get_CharOutTab(C,StringType) ->
- get_CharTab(C,StringType,out).
-
-get_CharInTab(C,StringType) ->
- get_CharTab(C,StringType,in).
-
-get_CharTab(C,StringType,InOut) ->
- case get_constraint(C,'PermittedAlphabet') of
- {'SingleValue',Sv} ->
- get_CharTab2(C,StringType,hd(Sv),lists:max(Sv),Sv,InOut);
- no ->
- case StringType of
- 'IA5String' ->
- {0,16#7F,notab};
- 'VisibleString' ->
- get_CharTab2(C,StringType,16#20,16#7F,notab,InOut);
- 'PrintableString' ->
- Chars = lists:sort(
- " '()+,-./0123456789:=?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"),
- get_CharTab2(C,StringType,hd(Chars),lists:max(Chars),Chars,InOut);
- 'NumericString' ->
- get_CharTab2(C,StringType,16#20,$9," 0123456789",InOut);
- 'UniversalString' ->
- {0,16#FFFFFFFF,notab};
- 'BMPString' ->
- {0,16#FFFF,notab}
- end
- end.
-
-get_CharTab2(C,StringType,Min,Max,Chars,InOut) ->
- BitValMax = (1 bsl get_NumBits(C,StringType))-1,
- if
- Max =< BitValMax ->
- {0,Max,notab};
- true ->
- case InOut of
- out ->
- {Min,Max,create_char_tab(Min,Chars)};
- in ->
- {Min,Max,list_to_tuple(Chars)}
- end
- end.
-
-create_char_tab(Min,L) ->
- list_to_tuple(create_char_tab(Min,L,0)).
-create_char_tab(Min,[Min|T],V) ->
- [V|create_char_tab(Min+1,T,V+1)];
-create_char_tab(_Min,[],_V) ->
- [];
-create_char_tab(Min,L,V) ->
- [false|create_char_tab(Min+1,L,V)].
-
-%% This very inefficient and should be moved to compiletime
-charbits(NumOfChars,aligned) ->
- case charbits(NumOfChars) of
- 1 -> 1;
- 2 -> 2;
- B when B =< 4 -> 4;
- B when B =< 8 -> 8;
- B when B =< 16 -> 16;
- B when B =< 32 -> 32
- end.
-
-charbits(NumOfChars) when NumOfChars =< 2 -> 1;
-charbits(NumOfChars) when NumOfChars =< 4 -> 2;
-charbits(NumOfChars) when NumOfChars =< 8 -> 3;
-charbits(NumOfChars) when NumOfChars =< 16 -> 4;
-charbits(NumOfChars) when NumOfChars =< 32 -> 5;
-charbits(NumOfChars) when NumOfChars =< 64 -> 6;
-charbits(NumOfChars) when NumOfChars =< 128 -> 7;
-charbits(NumOfChars) when NumOfChars =< 256 -> 8;
-charbits(NumOfChars) when NumOfChars =< 512 -> 9;
-charbits(NumOfChars) when NumOfChars =< 1024 -> 10;
-charbits(NumOfChars) when NumOfChars =< 2048 -> 11;
-charbits(NumOfChars) when NumOfChars =< 4096 -> 12;
-charbits(NumOfChars) when NumOfChars =< 8192 -> 13;
-charbits(NumOfChars) when NumOfChars =< 16384 -> 14;
-charbits(NumOfChars) when NumOfChars =< 32768 -> 15;
-charbits(NumOfChars) when NumOfChars =< 65536 -> 16;
-charbits(NumOfChars) when is_integer(NumOfChars) ->
- 16 + charbits1(NumOfChars bsr 16).
-
-charbits1(0) ->
- 0;
-charbits1(NumOfChars) ->
- 1 + charbits1(NumOfChars bsr 1).
-
-
-chars_decode(Bytes,_,'BMPString',C,Len) ->
- case get_constraint(C,'PermittedAlphabet') of
- no ->
- getBMPChars(Bytes,Len);
- _ ->
- exit({error,{asn1,
- {'not implemented',
- "BMPString with PermittedAlphabet constraint"}}})
- end;
-chars_decode(Bytes,NumBits,StringType,C,Len) ->
- CharInTab = get_CharInTab(C,StringType),
- chars_decode2(Bytes,CharInTab,NumBits,Len).
-
-
-chars_decode2(Bytes,CharInTab,NumBits,Len) ->
- chars_decode2(Bytes,CharInTab,NumBits,Len,[]).
-
-chars_decode2(Bytes,_CharInTab,_NumBits,0,Acc) ->
- {lists:reverse(Acc),Bytes};
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) when NumBits > 8 ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- Result =
- if
- Char < 256 -> Char;
- true ->
- list_to_tuple(binary_to_list(<<Char:32>>))
- end,
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Result|Acc]);
-% chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) when NumBits > 8 ->
-% {Char,Bytes2} = getbits(Bytes,NumBits),
-% Result = case minimum_octets(Char+Min) of
-% [NewChar] -> NewChar;
-% [C1,C2] -> {0,0,C1,C2};
-% [C1,C2,C3] -> {0,C1,C2,C3};
-% [C1,C2,C3,C4] -> {C1,C2,C3,C4}
-% end,
-% chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Result|Acc]);
-chars_decode2(Bytes,{Min,Max,notab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,notab},NumBits,Len -1,[Char+Min|Acc]);
-
-%% BMPString and UniversalString with PermittedAlphabet is currently not supported
-chars_decode2(Bytes,{Min,Max,CharInTab},NumBits,Len,Acc) ->
- {Char,Bytes2} = getbits(Bytes,NumBits),
- chars_decode2(Bytes2,{Min,Max,CharInTab},NumBits,Len -1,[element(Char+1,CharInTab)|Acc]).
-
-
-%% UTF8String
-encode_UTF8String(Val) when is_binary(Val) ->
- [encode_length(undefined,size(Val)),{octets,Val}];
-encode_UTF8String(Val) ->
- Bin = list_to_binary(Val),
- encode_UTF8String(Bin).
-
-decode_UTF8String(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- {list_to_binary(Octs),Bytes3}.
-
-
- % X.691:17
-encode_null(_) -> []. % encodes to nothing
-%encode_null({Name,Val}) when is_atom(Name) ->
-% encode_null(Val).
-
-decode_null(Bytes) ->
- {'NULL',Bytes}.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_object_identifier(Val) -> CompleteList
-%% encode_object_identifier({Name,Val}) -> CompleteList
-%% Val -> {Int1,Int2,...,IntN} % N >= 2
-%% Name -> atom()
-%% Int1 -> integer(0..2)
-%% Int2 -> integer(0..39) when Int1 (0..1) else integer()
-%% Int3-N -> integer()
-%% CompleteList -> [{bits,8,Val}|{octets,Ol}|align|...]
-%%
-encode_object_identifier({Name,Val}) when is_atom(Name) ->
- encode_object_identifier(Val);
-encode_object_identifier(Val) ->
- OctetList = e_object_identifier(Val),
- Octets = list_to_binary(OctetList), % performs a flatten at the same time
- [{debug,object_identifier},encode_length(undefined,size(Octets)),{octets,Octets}].
-
-%% This code is copied from asn1_encode.erl (BER) and corrected and modified
-
-e_object_identifier({'OBJECT IDENTIFIER',V}) ->
- e_object_identifier(V);
-e_object_identifier({Cname,V}) when is_atom(Cname),is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-e_object_identifier({Cname,V}) when is_atom(Cname),is_list(V) ->
- e_object_identifier(V);
-e_object_identifier(V) when is_tuple(V) ->
- e_object_identifier(tuple_to_list(V));
-
-%% E1 = 0|1|2 and (E2 < 40 when E1 = 0|1)
-e_object_identifier([E1,E2|Tail]) when E1 >= 0, E1 < 2, E2 < 40 ; E1==2 ->
- Head = 40*E1 + E2, % weird
- e_object_elements([Head|Tail],[]);
-e_object_identifier(Oid=[_,_|_Tail]) ->
- exit({error,{asn1,{'illegal_value',Oid}}}).
-
-e_object_elements([],Acc) ->
- lists:reverse(Acc);
-e_object_elements([H|T],Acc) ->
- e_object_elements(T,[e_object_element(H)|Acc]).
-
-e_object_element(Num) when Num < 128 ->
- [Num];
-e_object_element(Num) ->
- [e_o_e(Num bsr 7)|[Num band 2#1111111]].
-e_o_e(Num) when Num < 128 ->
- Num bor 2#10000000;
-e_o_e(Num) ->
- [e_o_e(Num bsr 7)|[(Num band 2#1111111) bor 2#10000000]].
-
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_object_identifier(Bytes) -> {ObjId,RemainingBytes}
-%% ObjId -> {integer(),integer(),...} % at least 2 integers
-%% RemainingBytes -> [integer()] when integer() (0..255)
-decode_object_identifier(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- [First|Rest] = dec_subidentifiers(Octs,0,[]),
- Idlist = if
- First < 40 ->
- [0,First|Rest];
- First < 80 ->
- [1,First - 40|Rest];
- true ->
- [2,First - 80|Rest]
- end,
- {list_to_tuple(Idlist),Bytes3}.
-
-dec_subidentifiers([H|T],Av,Al) when H >=16#80 ->
- dec_subidentifiers(T,(Av bsl 7) + (H band 16#7F),Al);
-dec_subidentifiers([H|T],Av,Al) ->
- dec_subidentifiers(T,0,[(Av bsl 7) + H |Al]);
-dec_subidentifiers([],_Av,Al) ->
- lists:reverse(Al).
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_relative_oid(Val) -> CompleteList
-%% encode_relative_oid({Name,Val}) -> CompleteList
-encode_relative_oid({Name,Val}) when is_atom(Name) ->
- encode_relative_oid(Val);
-encode_relative_oid(Val) when is_tuple(Val) ->
- encode_relative_oid(tuple_to_list(Val));
-encode_relative_oid(Val) when is_list(Val) ->
- Octets = list_to_binary([e_object_element(X)||X <- Val]),
- [encode_length(undefined,size(Octets)),{octets,Octets}].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_relative_oid(Val) -> {ROID,Rest}
-%% decode_relative_oid({Name,Val}) -> {ROID,Rest}
-decode_relative_oid(Bytes) ->
- {Len,Bytes2} = decode_length(Bytes,undefined),
- {Octs,Bytes3} = getoctets_as_list(Bytes2,Len),
- ObjVals = dec_subidentifiers(Octs,0,[]),
- {list_to_tuple(ObjVals),Bytes3}.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% encode_real(Val) -> CompleteList
-%% encode_real({Name,Val}) -> CompleteList
-encode_real({Name,Val}) when is_atom(Name) ->
- encode_real(Val);
-encode_real(Real) ->
- {EncVal,Len} = ?RT_COMMON:encode_real([],Real),
- [encode_length(undefined,Len),{octets,EncVal}].
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% decode_real(Val) -> {REALvalue,Rest}
-%% decode_real({Name,Val}) -> {REALvalue,Rest}
-decode_real(Bytes) ->
- {Len,{0,Bytes2}} = decode_length(Bytes,undefined),
- {RealVal,Rest,Len} = ?RT_COMMON:decode_real(Bytes2,Len),
- {RealVal,{0,Rest}}.
-
-
-get_constraint([{Key,V}],Key) ->
- V;
-get_constraint([],_Key) ->
- no;
-get_constraint(C,Key) ->
- case lists:keysearch(Key,1,C) of
- false ->
- no;
- {value,{_,V}} ->
- V
- end.
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% complete(InList) -> ByteList
-%% Takes a coded list with bits and bytes and converts it to a list of bytes
-%% Should be applied as the last step at encode of a complete ASN.1 type
-%%
-
-% complete(L) ->
-% case complete1(L) of
-% {[],0} ->
-% <<0>>;
-% {Acc,0} ->
-% lists:reverse(Acc);
-% {[Hacc|Tacc],Acclen} -> % Acclen >0
-% Rest = 8 - Acclen,
-% NewHacc = Hacc bsl Rest,
-% lists:reverse([NewHacc|Tacc])
-% end.
-
-
-% complete1(InList) when is_list(InList) ->
-% complete1(InList,[]);
-% complete1(InList) ->
-% complete1([InList],[]).
-
-% complete1([{debug,_}|T], Acc) ->
-% complete1(T,Acc);
-% complete1([H|T],Acc) when is_list(H) ->
-% {NewH,NewAcclen} = complete1(H,Acc),
-% complete1(T,NewH,NewAcclen);
-
-% complete1([{0,Bin}|T],Acc,0) when is_binary(Bin) ->
-% complete1(T,[Bin|Acc],0);
-% complete1([{Unused,Bin}|T],Acc,0) when is_integer(Unused),is_binary(Bin) ->
-% Size = size(Bin)-1,
-% <<Bs:Size/binary,B>> = Bin,
-% complete1(T,[(B bsr Unused),Bs|Acc],8-Unused);
-% complete1([{Unused,Bin}|T],[Hacc|Tacc],Acclen) when is_integer(Unused),is_binary(Bin) ->
-% Rest = 8 - Acclen,
-% Used = 8 - Unused,
-% case size(Bin) of
-% 1 ->
-% if
-% Rest >= Used ->
-% <<B:Used,_:Unused>> = Bin,
-% complete1(T,[(Hacc bsl Used) + B|Tacc],
-% (Acclen+Used) rem 8);
-% true ->
-% LeftOver = 8 - Rest - Unused,
-% <<Val2:Rest,Val1:LeftOver,_:Unused>> = Bin,
-% complete1(T,[Val1,(Hacc bsl Rest) + Val2|Tacc],
-% (Acclen+Used) rem 8)
-% end;
-% N ->
-% if
-% Rest == Used ->
-% N1 = N - 1,
-% <<B:Rest,Bs:N1/binary,_:Unused>> = Bin,
-% complete1(T,[Bs,(Hacc bsl Rest) + B|Tacc],0);
-% Rest > Used ->
-% N1 = N - 2,
-% N2 = (8 - Rest) + Used,
-% <<B1:Rest,Bytes:N1/binary,B2:N2,_:Unused>> = Bin,
-% complete1(T,[B2,Bytes,(Hacc bsl Rest) + B1|Tacc],
-% (Acclen + Used) rem 8);
-% true -> % Rest < Used
-% N1 = N - 1,
-% N2 = Used - Rest,
-% <<B1:Rest,Bytes:N1/binary,B2:N2,_:Unused>> = Bin,
-% complete1(T,[B2,Bytes,(Hacc bsl Rest) + B1|Tacc],
-% (Acclen + Used) rem 8)
-% end
-% end;
-
-% %complete1([{octets,N,Val}|T],Acc,Acclen) when N =< 4 ,is_integer(Val) ->
-% % complete1([{octets,<<Val:N/unit:8>>}|T],Acc,Acclen);
-% complete1([{octets,N,Val}|T],Acc,Acclen) when N =< 4 ,is_integer(Val) ->
-% Newval = case N of
-% 1 ->
-% Val4 = Val band 16#FF,
-% [Val4];
-% 2 ->
-% Val3 = (Val bsr 8) band 16#FF,
-% Val4 = Val band 16#FF,
-% [Val3,Val4];
-% 3 ->
-% Val2 = (Val bsr 16) band 16#FF,
-% Val3 = (Val bsr 8) band 16#FF,
-% Val4 = Val band 16#FF,
-% [Val2,Val3,Val4];
-% 4 ->
-% Val1 = (Val bsr 24) band 16#FF,
-% Val2 = (Val bsr 16) band 16#FF,
-% Val3 = (Val bsr 8) band 16#FF,
-% Val4 = Val band 16#FF,
-% [Val1,Val2,Val3,Val4]
-% end,
-% complete1([{octets,Newval}|T],Acc,Acclen);
-
-% complete1([{octets,Bin}|T],Acc,Acclen) when is_binary(Bin) ->
-% Rest = 8 - Acclen,
-% if
-% Rest == 8 ->
-% complete1(T,[Bin|Acc],0);
-% true ->
-% [Hacc|Tacc]=Acc,
-% complete1(T,[Bin, Hacc bsl Rest|Tacc],0)
-% end;
-
-% complete1([{octets,Oct}|T],Acc,Acclen) when is_list(Oct) ->
-% Rest = 8 - Acclen,
-% if
-% Rest == 8 ->
-% complete1(T,[list_to_binary(Oct)|Acc],0);
-% true ->
-% [Hacc|Tacc]=Acc,
-% complete1(T,[list_to_binary(Oct), Hacc bsl Rest|Tacc],0)
-% end;
-
-% complete1([{bit,Val}|T], Acc, Acclen) ->
-% complete1([{bits,1,Val}|T],Acc,Acclen);
-% complete1([{octet,Val}|T], Acc, Acclen) ->
-% complete1([{octets,1,Val}|T],Acc,Acclen);
-
-% complete1([{bits,N,Val}|T], Acc, 0) when N =< 8 ->
-% complete1(T,[Val|Acc],N);
-% complete1([{bits,N,Val}|T], [Hacc|Tacc], Acclen) when N =< 8 ->
-% Rest = 8 - Acclen,
-% if
-% Rest >= N ->
-% complete1(T,[(Hacc bsl N) + Val|Tacc],(Acclen+N) rem 8);
-% true ->
-% Diff = N - Rest,
-% NewHacc = (Hacc bsl Rest) + (Val bsr Diff),
-% Mask = element(Diff,{1,3,7,15,31,63,127,255}),
-% complete1(T,[(Val band Mask),NewHacc|Tacc],(Acclen+N) rem 8)
-% end;
-% complete1([{bits,N,Val}|T], Acc, Acclen) -> % N > 8
-% complete1([{bits,N-8,Val bsr 8},{bits,8,Val band 255}|T],Acc,Acclen);
-
-% complete1([align|T],Acc,0) ->
-% complete1(T,Acc,0);
-% complete1([align|T],[Hacc|Tacc],Acclen) ->
-% Rest = 8 - Acclen,
-% complete1(T,[Hacc bsl Rest|Tacc],0);
-% complete1([{octets,N,Val}|T],Acc,Acclen) when is_list(Val) -> % no security check here
-% complete1([{octets,Val}|T],Acc,Acclen);
-
-% complete1([],Acc,Acclen) ->
-% {Acc,Acclen}.
-
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-%% complete(InList) -> ByteList
-%% Takes a coded list with bits and bytes and converts it to a list of bytes
-%% Should be applied as the last step at encode of a complete ASN.1 type
-%%
-
-complete(L) ->
- case complete1(L) of
- {[],[]} ->
- <<0>>;
- {Acc,[]} ->
- Acc;
- {Acc,Bacc} ->
- [Acc|complete_bytes(Bacc)]
- end.
-
-%% this function builds the ugly form of lists [E1|E2] to avoid having to reverse it at the end.
-%% this is done because it is efficient and that the result always will be sent on a port or
-%% converted by means of list_to_binary/1
-complete1(InList) when is_list(InList) ->
- complete1(InList,[],[]);
-complete1(InList) ->
- complete1([InList],[],[]).
-
-complete1([],Acc,Bacc) ->
- {Acc,Bacc};
-complete1([H|T],Acc,Bacc) when is_list(H) ->
- {NewH,NewBacc} = complete1(H,Acc,Bacc),
- complete1(T,NewH,NewBacc);
-
-complete1([{octets,Bin}|T],Acc,[]) ->
- complete1(T,[Acc|Bin],[]);
-
-complete1([{octets,Bin}|T],Acc,Bacc) ->
- complete1(T,[Acc|[complete_bytes(Bacc),Bin]],[]);
-
-complete1([{debug,_}|T], Acc,Bacc) ->
- complete1(T,Acc,Bacc);
-
-complete1([{bits,N,Val}|T],Acc,Bacc) ->
- complete1(T,Acc,complete_update_byte(Bacc,Val,N));
-
-complete1([{bit,Val}|T],Acc,Bacc) ->
- complete1(T,Acc,complete_update_byte(Bacc,Val,1));
-
-complete1([align|T],Acc,[]) ->
- complete1(T,Acc,[]);
-complete1([align|T],Acc,Bacc) ->
- complete1(T,[Acc|complete_bytes(Bacc)],[]);
-complete1([{0,Bin}|T],Acc,[]) when is_binary(Bin) ->
- complete1(T,[Acc|Bin],[]);
-complete1([{Unused,Bin}|T],Acc,[]) when is_integer(Unused),is_binary(Bin) ->
- Size = size(Bin)-1,
- <<Bs:Size/binary,B>> = Bin,
- NumBits = 8-Unused,
- complete1(T,[Acc|Bs],[[B bsr Unused]|NumBits]);
-complete1([{Unused,Bin}|T],Acc,Bacc) when is_integer(Unused),is_binary(Bin) ->
- Size = size(Bin)-1,
- <<Bs:Size/binary,B>> = Bin,
- NumBits = 8 - Unused,
- Bf = complete_bytes(Bacc),
- complete1(T,[Acc|[Bf,Bs]],[[B bsr Unused]|NumBits]).
-
-
-complete_update_byte([],Val,Len) ->
- complete_update_byte([[0]|0],Val,Len);
-complete_update_byte([[Byte|Bacc]|NumBits],Val,Len) when NumBits + Len == 8 ->
- [[0,((Byte bsl Len) + Val) band 255|Bacc]|0];
-complete_update_byte([[Byte|Bacc]|NumBits],Val,Len) when NumBits + Len > 8 ->
- Rem = 8 - NumBits,
- Rest = Len - Rem,
- complete_update_byte([[0,((Byte bsl Rem) + (Val bsr Rest)) band 255 |Bacc]|0],Val,Rest);
-complete_update_byte([[Byte|Bacc]|NumBits],Val,Len) ->
- [[((Byte bsl Len) + Val) band 255|Bacc]|NumBits+Len].
-
-
-complete_bytes([[_Byte|Bacc]|0]) ->
- lists:reverse(Bacc);
-complete_bytes([[Byte|Bacc]|NumBytes]) ->
- lists:reverse([(Byte bsl (8-NumBytes)) band 255|Bacc]);
-complete_bytes([]) ->
- [].
-
-% complete_bytes(L) ->
-% complete_bytes1(lists:reverse(L),[],[],0,0).
-
-% complete_bytes1([H={V,B}|T],Acc,ReplyAcc,NumBits,NumFields) when ((NumBits+B) rem 8) == 0 ->
-% NewReplyAcc = [complete_bytes2([H|Acc],0)|ReplyAcc],
-% complete_bytes1(T,[],NewReplyAcc,0,0);
-% complete_bytes1([H={V,B}|T],Acc,ReplyAcc,NumBits,NumFields) when NumFields == 7; (NumBits+B) div 8 > 0 ->
-% Rem = (NumBits+B) rem 8,
-% NewReplyAcc = [complete_bytes2([{V bsr Rem,B - Rem}|Acc],0)|ReplyAcc],
-% complete_bytes1([{V,Rem}|T],[],NewReplyAcc,0,0);
-% complete_bytes1([H={V,B}|T],Acc,ReplyAcc,NumBits,NumFields) ->
-% complete_bytes1(T,[H|Acc],ReplyAcc,NumBits+B,NumFields+1);
-% complete_bytes1([],[],ReplyAcc,_,_) ->
-% lists:reverse(ReplyAcc);
-% complete_bytes1([],Acc,ReplyAcc,NumBits,_) ->
-% PadBits = case NumBits rem 8 of
-% 0 -> 0;
-% Rem -> 8 - Rem
-% end,
-% lists:reverse([complete_bytes2(Acc,PadBits)|ReplyAcc]).
-
-
-% complete_bytes2([{V1,B1}],PadBits) ->
-% <<V1:B1,0:PadBits>>;
-% complete_bytes2([{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,0:PadBits>>;
-% complete_bytes2([{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,0:PadBits>>;
-% complete_bytes2([{V4,B4},{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,V4:B4,0:PadBits>>;
-% complete_bytes2([{V5,B5},{V4,B4},{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,V4:B4,V5:B5,0:PadBits>>;
-% complete_bytes2([{V6,B6},{V5,B5},{V4,B4},{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,V4:B4,V5:B5,V6:B6,0:PadBits>>;
-% complete_bytes2([{V7,B7},{V6,B6},{V5,B5},{V4,B4},{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,V4:B4,V5:B5,V6:B6,V7:B7,0:PadBits>>;
-% complete_bytes2([{V8,B8},{V7,B7},{V6,B6},{V5,B5},{V4,B4},{V3,B3},{V2,B2},{V1,B1}],PadBits) ->
-% <<V1:B1,V2:B2,V3:B3,V4:B4,V5:B5,V6:B6,V7:B7,V8:B8,0:PadBits>>.
-
-
-
-
-
-