diff options
Diffstat (limited to 'lib/asn1/src/asn1rtt_per.erl')
| -rw-r--r-- | lib/asn1/src/asn1rtt_per.erl | 37 |
1 files changed, 6 insertions, 31 deletions
diff --git a/lib/asn1/src/asn1rtt_per.erl b/lib/asn1/src/asn1rtt_per.erl index 7194e8d127..4713125ffc 100644 --- a/lib/asn1/src/asn1rtt_per.erl +++ b/lib/asn1/src/asn1rtt_per.erl @@ -79,7 +79,7 @@ skipextensions(Bytes0, Nr, ExtensionBitstr) when is_bitstring(ExtensionBitstr) - Prev = Nr - 1, case ExtensionBitstr of <<_:Prev,1:1,_/bitstring>> -> - {Len,Bytes1} = decode_length(Bytes0, undefined), + {Len,Bytes1} = decode_length(Bytes0), <<_:Len/binary,Bytes2/bitstring>> = Bytes1, skipextensions(Bytes2, Nr+1, ExtensionBitstr); <<_:Prev,0:1,_/bitstring>> -> @@ -262,7 +262,7 @@ encode_semi_constrained_number(Lb, Val) -> end. decode_semi_constrained_number(Bytes) -> - {Len,Bytes2} = decode_length(Bytes, undefined), + {Len,Bytes2} = decode_length(Bytes), getoctets(Bytes2, Len). encode_constrained_number({Lb,_Ub},_Range,{bits,N},Val) -> @@ -465,7 +465,7 @@ encode_small_length(Len) -> [1,encode_length(Len)]. -decode_length(Buffer, undefined) -> % un-constrained +decode_length(Buffer) -> % un-constrained case align(Buffer) of <<0:1,Oct:7,Rest/binary>> -> {Oct,Rest}; @@ -474,37 +474,12 @@ decode_length(Buffer, undefined) -> % un-constrained <<3:2,_Val:14,_Rest/binary>> -> %% this case should be fixed exit({error,{asn1,{decode_length,{nyi,above_16k}}}}) - end; + end. -decode_length(Buffer, {Lb,Ub}) when Ub =< 65535 ,Lb >= 0 -> % constrained +decode_length(Buffer, {Lb,Ub}) when Ub =< 65535, Lb >= 0 -> % constrained decode_constrained_number(Buffer, {Lb,Ub}); decode_length(Buffer, {Lb,_Ub}) when is_integer(Lb), Lb >= 0 -> % Ub > 65535 - decode_length(Buffer,undefined); -decode_length(Buffer, {{Lb,Ub},Ext}) when is_list(Ext) -> - case getbit(Buffer) of - {0,Buffer2} -> - decode_length(Buffer2, {Lb,Ub}); - {1,Buffer2} -> - decode_length(Buffer2, undefined) - end; - -%When does this case occur with {_,_Lb,Ub} ?? -% X.691:10.9.3.5 -decode_length(Bin, {_,_Lb,_Ub}) -> % Unconstrained or large Ub NOTE! this case does not cover case when Ub > 65535 - case Bin of - <<0:1,Val:7,Rest/bitstring>> -> - {Val,Rest}; - _ -> - case align(Bin) of - <<2:2,Val:14,Rest/binary>> -> - {Val,Rest}; - <<3:2,_:14,_Rest/binary>> -> - exit({error,{asn1,{decode_length,{nyi,length_above_64K}}}}) - end - end; -decode_length(Buffer, SingleValue) when is_integer(SingleValue) -> - {SingleValue,Buffer}. - + decode_length(Buffer). %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% bitstring NamedBitList |