diff options
Diffstat (limited to 'lib/asn1/src/asn1rtt_uper.erl')
-rw-r--r-- | lib/asn1/src/asn1rtt_uper.erl | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/lib/asn1/src/asn1rtt_uper.erl b/lib/asn1/src/asn1rtt_uper.erl index 8efe9a7b0f..e55535860f 100644 --- a/lib/asn1/src/asn1rtt_uper.erl +++ b/lib/asn1/src/asn1rtt_uper.erl @@ -21,7 +21,7 @@ -export([setext/1, fixoptionals/3, fixextensions/2, - skipextensions/3, getbit/1, getchoice/3 ]). + skipextensions/3]). -export([set_choice/3, encode_integer/2, encode_integer/3]). -export([encode_small_number/1, encode_constrained_number/2, encode_boolean/1, @@ -123,29 +123,6 @@ skipextensions(Bytes0, Nr, ExtensionBitstr) when is_bitstring(ExtensionBitstr) - 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}). - - -getbit(Buffer) -> - <<B:1,Rest/bitstring>> = Buffer, - {B,Rest}. - -getbits(Buffer, Num) when is_bitstring(Buffer) -> - <<Bs:Num,Rest/bitstring>> = Buffer, - {Bs,Rest}. - - -%% Pick the first Num octets. -%% Returns octets as an integer with bit significance as in buffer. -getoctets(Buffer, Num) when is_bitstring(Buffer) -> - <<Val:Num/integer-unit:8,RestBitStr/bitstring>> = Buffer, - {Val,RestBitStr}. - %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% set_choice(Alt,Choices,Altnum) -> ListofBitSettings %% Alt = atom() @@ -265,15 +242,6 @@ encode_small_number(Val) when Val < 64 -> encode_small_number(Val) -> [<<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) - end. - %% X.691:10.7 Encoding of a semi-constrained whole number encode_semi_constrained_number(Lb, Val) -> %% encoding in minimum number of octets preceeded by a length @@ -289,11 +257,6 @@ encode_semi_constrained_number(Lb, Val) -> [encode_length(Size),Bin] end. -decode_semi_constrained_number(Bytes) -> - {Len,Bytes2} = decode_length(Bytes), - {V,Bytes3} = getoctets(Bytes2,Len), - {V,Bytes3}. - encode_constrained_number({Lb,Ub}, Val) when Val >= Lb, Ub >= Val -> Range = Ub - Lb + 1, Val2 = Val - Lb, @@ -302,13 +265,6 @@ encode_constrained_number({Lb,Ub}, Val) when Val >= Lb, Ub >= Val -> encode_constrained_number(Range,Val) -> exit({error,{asn1,{integer_range,Range,value,Val}}}). - -decode_constrained_number(Buffer, {Lb,Ub}) -> - Range = Ub - Lb + 1, - NumBits = num_bits(Range), - {Val,Remain} = getbits(Buffer,NumBits), - {Val+Lb,Remain}. - %% X.691:10.8 Encoding of an unconstrained whole number encode_unconstrained_number(Val) when Val >= 0 -> |