diff options
Diffstat (limited to 'lib/asn1/src/asn1rtt_ber.erl')
| -rw-r--r-- | lib/asn1/src/asn1rtt_ber.erl | 46 |
1 files changed, 15 insertions, 31 deletions
diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl index 34f246fb22..509c091355 100644 --- a/lib/asn1/src/asn1rtt_ber.erl +++ b/lib/asn1/src/asn1rtt_ber.erl @@ -838,8 +838,8 @@ int_to_bitlist(Int) when is_integer(Int), Int >= 0 -> %% and BinBits is a binary representing the BIT STRING. %%================================================================= encode_bin_bit_string(C,{Unused,BinBits},_NamedBitList,TagIn)-> - case get_constraint(C,'SizeConstraint') of - no -> + case C of + [] -> remove_unused_then_dotag(TagIn, Unused, BinBits); {_Min,Max} -> BBLen = (byte_size(BinBits)*8)-Unused, @@ -885,8 +885,8 @@ remove_unused_then_dotag(TagIn,Unused,BinBits) -> encode_bit_string_named(C, [FirstVal | RestVal], NamedBitList, TagIn) -> ToSetPos = get_all_bitposes([FirstVal | RestVal], NamedBitList, []), Size = - case get_constraint(C,'SizeConstraint') of - no -> + case C of + [] -> lists:max(ToSetPos)+1; {_Min,Max} -> Max; @@ -943,8 +943,8 @@ make_and_set_list(Len, [], XPos) -> %% Encode bit string for lists of ones and zeroes %%================================================================= encode_bit_string_bits(C, BitListVal, _NamedBitList, TagIn) when is_list(BitListVal) -> - case get_constraint(C,'SizeConstraint') of - no -> + case C of + [] -> {Len, Unused, OctetList} = encode_bitstring(BitListVal), %%add unused byte to the Len encode_tags(TagIn, [Unused | OctetList], Len+1); @@ -957,7 +957,7 @@ encode_bit_string_bits(C, BitListVal, _NamedBitList, TagIn) when is_list(BitList Constr={{_,_},{_,_}} ->%{{Min1,Max1},{Min2,Max2}} %% constraint with extension mark encode_constr_bit_str_bits(Constr,BitListVal,TagIn); - Size -> + Size when is_integer(Size) -> case length(BitListVal) of BitSize when BitSize == Size -> {Len, Unused, OctetList} = encode_bitstring(BitListVal), @@ -1266,22 +1266,14 @@ decode_restricted_string(Tlv, Range, TagsIn) -> Bin = match_and_collect(Tlv, TagsIn), check_restricted_string(binary_to_list(Bin), byte_size(Bin), Range). -check_restricted_string(Val, StrLen, Range) -> - case Range of - {Lb,Ub} when StrLen >= Lb, Ub >= StrLen -> % variable length constraint - Val; - {_,Ext} when is_list(Ext) -> - Val; - StrLen -> % fixed length constraint - Val; - {_,_} -> - exit({error,{asn1,{length,Range,Val}}}); - _Len when is_integer(_Len) -> - exit({error,{asn1,{length,Range,Val}}}); - _ -> % some strange constraint that we don't support yet - Val - end. - +check_restricted_string(Val, _Len, []) -> + Val; +check_restricted_string(Val, Len, {Lb,Ub}) when Lb =< Len, Len =< Ub -> + Val; +check_restricted_string(Val, Len, Len) -> + Val; +check_restricted_string(Val, _Len, Range) -> + exit({error,{asn1,{length,Range,Val}}}). %%============================================================================ %% encode Universal string @@ -1530,14 +1522,6 @@ match_and_collect(Tlv, TagsIn) -> Bin end. -get_constraint(C, Key) -> - case lists:keyfind(Key, 1, C) of - false -> - no; - {_,V} -> - V - end. - collect_parts(TlvList) -> collect_parts(TlvList, []). |