diff options
Diffstat (limited to 'lib/asn1/src/asn1rt.erl')
-rw-r--r-- | lib/asn1/src/asn1rt.erl | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/lib/asn1/src/asn1rt.erl b/lib/asn1/src/asn1rt.erl deleted file mode 100644 index 3e09ce2252..0000000000 --- a/lib/asn1/src/asn1rt.erl +++ /dev/null @@ -1,184 +0,0 @@ -%% -%% %CopyrightBegin% -%% -%% Copyright Ericsson AB 1997-2016. All Rights Reserved. -%% -%% Licensed under the Apache License, Version 2.0 (the "License"); -%% you may not use this file except in compliance with the License. -%% You may obtain a copy of the License at -%% -%% http://www.apache.org/licenses/LICENSE-2.0 -%% -%% Unless required by applicable law or agreed to in writing, software -%% distributed under the License is distributed on an "AS IS" BASIS, -%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -%% See the License for the specific language governing permissions and -%% limitations under the License. -%% -%% %CopyrightEnd% -%% -%% --module(asn1rt). --deprecated(module). - -%% Runtime functions for ASN.1 (i.e encode, decode) - --export([encode/2,encode/3,decode/3,load_driver/0,unload_driver/0,info/1]). - --export([utf8_binary_to_list/1,utf8_list_to_binary/1]). - -encode(Module,{Type,Term}) -> - encode(Module,Type,Term). - -encode(Module,Type,Term) -> - case catch apply(Module,encode,[Type,Term]) of - {'EXIT',undef} -> - {error,{asn1,{undef,Module,Type}}}; - Result -> - Result - end. - -decode(Module,Type,Bytes) -> - case catch apply(Module,decode,[Type,Bytes]) of - {'EXIT',undef} -> - {error,{asn1,{undef,Module,Type}}}; - Result -> - Result - end. - -%% Remove in R16A -load_driver() -> - ok. - -unload_driver() -> - ok. - -info(Module) -> - case catch apply(Module,info,[]) of - {'EXIT',{undef,_Reason}} -> - {error,{asn1,{undef,Module,info}}}; - Result -> - {ok,Result} - end. - -%% utf8_binary_to_list/1 transforms a utf8 encoded binary to a list of -%% unicode elements, where each element is the unicode integer value -%% of a utf8 character. -%% Bin is a utf8 encoded value. The return value is either {ok,Val} or -%% {error,Reason}. Val is a list of integers, where each integer is a -%% unicode character value. -utf8_binary_to_list(Bin) when is_binary(Bin) -> - utf8_binary_to_list(Bin,[]). - -utf8_binary_to_list(<<>>,Acc) -> - {ok,lists:reverse(Acc)}; -utf8_binary_to_list(Bin,Acc) -> - Len = utf8_binary_len(Bin), - case catch split_binary(Bin,Len) of - {CharBin,RestBin} -> - case utf8_binary_char(CharBin) of - C when is_integer(C) -> - utf8_binary_to_list(RestBin,[C|Acc]); - Err -> Err - end; - Err -> {error,{asn1,{bad_encoded_utf8string,Err}}} - end. - -utf8_binary_len(<<0:1,_:7,_/binary>>) -> - 1; -utf8_binary_len(<<1:1,1:1,0:1,_:5,_/binary>>) -> - 2; -utf8_binary_len(<<1:1,1:1,1:1,0:1,_:4,_/binary>>) -> - 3; -utf8_binary_len(<<1:1,1:1,1:1,1:1,0:1,_:3,_/binary>>) -> - 4; -utf8_binary_len(<<1:1,1:1,1:1,1:1,1:1,0:1,_:2,_/binary>>) -> - 5; -utf8_binary_len(<<1:1,1:1,1:1,1:1,1:1,1:1,0:1,_:1,_/binary>>) -> - 6; -utf8_binary_len(Bin) -> - {error,{asn1,{bad_utf8_length,Bin}}}. - -utf8_binary_char(<<0:1,Int:7>>) -> - Int; -utf8_binary_char(<<_:2,0:1,Int1:5,1:1,0:1,Int2:6>>) -> - (Int1 bsl 6) bor Int2; -utf8_binary_char(<<_:3,0:1,Int1:4,1:1,0:1,Int2:6,1:1,0:1,Int3:6>>) -> - <<Res:16>> = <<Int1:4,Int2:6,Int3:6>>, - Res; -utf8_binary_char(<<_:4,0:1,Int1:3,Rest/binary>>) -> - <<1:1,0:1,Int2:6,1:1,0:1,Int3:6,1:1,0:1,Int4:6>> = Rest, - <<Res:24>> = <<0:3,Int1:3,Int2:6,Int3:6,Int4:6>>, - Res; -utf8_binary_char(<<_:5,0:1,Int1:2,Rest/binary>>) -> - <<1:1,0:1,Int2:6,1:1,0:1,Int3:6,1:1,0:1,Int4:6,1:1,0:1,Int5:6>> = Rest, - <<Res:32>> = <<0:6,Int1:2,Int2:6,Int3:6,Int4:6,Int5:6>>, - Res; -utf8_binary_char(<<_:6,0:1,I:1,Rest/binary>>) -> - <<1:1,0:1,Int2:6,1:1,0:1,Int3:6,1:1,0:1,Int4:6,1:1,0:1, - Int5:6,1:1,0:1,Int6:6>> = Rest, - <<Res:32>> = <<0:1,I:1,Int2:6,Int3:6,Int4:6,Int5:6,Int6:6>>, - Res; -utf8_binary_char(Err) -> - {error,{asn1,{bad_utf8_character_encoding,Err}}}. - - -%% macros used for utf8 encoding --define(bit1to6_into_utf8byte(I),16#80 bor (I band 16#3f)). --define(bit7to12_into_utf8byte(I),16#80 bor ((I band 16#fc0) bsr 6)). --define(bit13to18_into_utf8byte(I),16#80 bor ((I band 16#3f000) bsr 12)). --define(bit19to24_into_utf8byte(I),16#80 bor ((Int band 16#fc0000) bsr 18)). --define(bit25to30_into_utf8byte(I),16#80 bor ((Int band 16#3f000000) bsr 24)). - -%% utf8_list_to_binary/1 transforms a list of integers to a -%% binary. Each element in the input list has the unicode (integer) -%% value of an utf8 character. -%% The return value is either {ok,Bin} or {error,Reason}. The -%% resulting binary is utf8 encoded. -utf8_list_to_binary(List) -> - utf8_list_to_binary(List,[]). - -utf8_list_to_binary([],Acc) when is_list(Acc) -> - {ok,list_to_binary(lists:reverse(Acc))}; -utf8_list_to_binary([],Acc) -> - {error,{asn1,Acc}}; -utf8_list_to_binary([H|T],Acc) -> - case catch utf8_encode(H,Acc) of - NewAcc when is_list(NewAcc) -> - utf8_list_to_binary(T,NewAcc); - Err -> Err - end. - - -utf8_encode(Int,Acc) when Int < 128 -> - %% range 16#00000000 - 16#0000007f - %% utf8 encoding: 0xxxxxxx - [Int|Acc]; -utf8_encode(Int,Acc) when Int < 16#800 -> - %% range 16#00000080 - 16#000007ff - %% utf8 encoding: 110xxxxx 10xxxxxx - [?bit1to6_into_utf8byte(Int),16#c0 bor (Int bsr 6)|Acc]; -utf8_encode(Int,Acc) when Int < 16#10000 -> - %% range 16#00000800 - 16#0000ffff - %% utf8 encoding: 1110xxxx 10xxxxxx 10xxxxxx - [?bit1to6_into_utf8byte(Int),?bit7to12_into_utf8byte(Int), - 16#e0 bor ((Int band 16#f000) bsr 12)|Acc]; -utf8_encode(Int,Acc) when Int < 16#200000 -> - %% range 16#00010000 - 16#001fffff - %% utf8 encoding: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx - [?bit1to6_into_utf8byte(Int),?bit7to12_into_utf8byte(Int), - ?bit13to18_into_utf8byte(Int), - 16#f0 bor ((Int band 16#1c0000) bsr 18)|Acc]; -utf8_encode(Int,Acc) when Int < 16#4000000 -> - %% range 16#00200000 - 16#03ffffff - %% utf8 encoding: 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx - [?bit1to6_into_utf8byte(Int),?bit7to12_into_utf8byte(Int), - ?bit13to18_into_utf8byte(Int),?bit19to24_into_utf8byte(Int), - 16#f8 bor ((Int band 16#3000000) bsr 24)|Acc]; -utf8_encode(Int,Acc) -> - %% range 16#04000000 - 16#7fffffff - %% utf8 encoding: 1111110x 10xxxxxx ...(total 6 bytes) 10xxxxxx - [?bit1to6_into_utf8byte(Int),?bit7to12_into_utf8byte(Int), - ?bit13to18_into_utf8byte(Int),?bit19to24_into_utf8byte(Int), - ?bit25to30_into_utf8byte(Int), - 16#fc bor ((Int band 16#40000000) bsr 30)|Acc]. |