diff options
Diffstat (limited to 'lib/asn1/src/asn1rt_uper_bin.erl')
| -rw-r--r-- | lib/asn1/src/asn1rt_uper_bin.erl | 51 |
1 files changed, 44 insertions, 7 deletions
diff --git a/lib/asn1/src/asn1rt_uper_bin.erl b/lib/asn1/src/asn1rt_uper_bin.erl index 6f6bfa195e..2cd68c62a0 100644 --- a/lib/asn1/src/asn1rt_uper_bin.erl +++ b/lib/asn1/src/asn1rt_uper_bin.erl @@ -582,7 +582,7 @@ encode_length(undefined,Len) -> % un-constrained Len < 16384 -> <<2:2,Len:14>>; true -> % should be able to endode length >= 16384 - exit({error,{asn1,{encode_length,{nyi,above_16k}}}}) + error({error,{asn1,{encode_length,{nyi,above_16k}}}}) end; encode_length({0,'MAX'},Len) -> @@ -1052,16 +1052,53 @@ encode_octet_string(C,Val) -> list_to_binary(Val); 2 -> list_to_binary(Val); - Sv when Sv =<65535, Sv == length(Val) -> % fixed length - list_to_binary(Val); - VR = {_,_} -> - [encode_length(VR,length(Val)),list_to_binary(Val)]; + {_,_}=VR -> + try + [encode_length(VR, length(Val)),list_to_binary(Val)] + catch + error:{error,{asn1,{encode_length,_}}} -> + encode_fragmented_octet_string(Val) + end; + Sv when is_integer(Sv), Sv =:= length(Val) -> % fixed length + if + Sv =< 65535 -> + list_to_binary(Val); + true -> + encode_fragmented_octet_string(Val) + end; Sv when is_list(Sv) -> - [encode_length({hd(Sv),lists:max(Sv)},length(Val)),list_to_binary(Val)]; + try + [encode_length({hd(Sv),lists:max(Sv)}, + length(Val)),list_to_binary(Val)] + catch + error:{error,{asn1,{encode_length,_}}} -> + encode_fragmented_octet_string(Val) + end; no -> - [encode_length(undefined,length(Val)),list_to_binary(Val)] + try + [encode_length(undefined, length(Val)),list_to_binary(Val)] + catch + error:{error,{asn1,{encode_length,_}}} -> + encode_fragmented_octet_string(Val) + end end. +encode_fragmented_octet_string(Val) -> + Bin = list_to_binary(Val), + efos_1(Bin). + +efos_1(<<B:16#10000/binary,T/binary>>) -> + [<<3:2,4:6>>,B|efos_1(T)]; +efos_1(<<B:16#C000/binary,T/binary>>) -> + [<<3:2,3:6>>,B|efos_1(T)]; +efos_1(<<B:16#8000/binary,T/binary>>) -> + [<<3:2,2:6>>,B|efos_1(T)]; +efos_1(<<B:16#4000/binary,T/binary>>) -> + [<<3:2,1:6>>,B|efos_1(T)]; +efos_1(<<B/bitstring>>) -> + Len = byte_size(B), + [encode_length(undefined, Len),B]. + decode_octet_string(Bytes,C) -> decode_octet_string1(Bytes,get_constraint(C,'SizeConstraint')). decode_octet_string1(<<B1,Bytes/bitstring>>,1) -> |