diff options
Diffstat (limited to 'lib/asn1/src/asn1rtt_per_common.erl')
| -rw-r--r-- | lib/asn1/src/asn1rtt_per_common.erl | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/lib/asn1/src/asn1rtt_per_common.erl b/lib/asn1/src/asn1rtt_per_common.erl index 3309e6a4ca..71fec411a0 100644 --- a/lib/asn1/src/asn1rtt_per_common.erl +++ b/lib/asn1/src/asn1rtt_per_common.erl @@ -37,8 +37,10 @@ bitstring_from_positions/1,bitstring_from_positions/2, to_bitstring/1,to_bitstring/2, to_named_bitstring/1,to_named_bitstring/2, - is_default_bitstring/5, - extension_bitmap/3]). + bs_drop_trailing_zeroes/1,adjust_trailing_zeroes/2, + is_default_bitstring/3,is_default_bitstring/5, + extension_bitmap/3, + open_type_to_binary/1,legacy_open_type_to_binary/1]). -define('16K',16384). @@ -272,6 +274,25 @@ to_named_bitstring(Val, Lb) -> %% for correctness, not speed. adjust_trailing_zeroes(to_bitstring(Val), Lb). +is_default_bitstring(asn1_DEFAULT, _, _) -> + true; +is_default_bitstring(Named, Named, _) -> + true; +is_default_bitstring(Bs, _, Bs) -> + true; +is_default_bitstring(Val, _, Def) when is_bitstring(Val) -> + Sz = bit_size(Def), + case Val of + <<Def:Sz/bitstring,T/bitstring>> -> + NumZeroes = bit_size(T), + case T of + <<0:NumZeroes>> -> true; + _ -> false + end; + _ -> + false + end. + is_default_bitstring(asn1_DEFAULT, _, _, _, _) -> true; is_default_bitstring({Unused,Bin}, V0, V1, V2, V3) when is_integer(Unused) -> @@ -306,6 +327,16 @@ is_default_bitstring(_, _, _, _, _) -> false. extension_bitmap(Val, Pos, Limit) -> extension_bitmap(Val, Pos, Limit, 0). +open_type_to_binary({asn1_OPENTYPE,Bin}) when is_binary(Bin) -> + Bin. + +legacy_open_type_to_binary({asn1_OPENTYPE,Bin}) when is_binary(Bin) -> + Bin; +legacy_open_type_to_binary(Bin) when is_binary(Bin) -> + Bin; +legacy_open_type_to_binary(List) when is_list(List) -> + List. + %%% %%% Internal functions. %%% @@ -438,6 +469,8 @@ adjust_trailing_zeroes(Bs0, Lb) -> bs_drop_trailing_zeroes(Bs) -> bs_drop_trailing_zeroes(Bs, bit_size(Bs)). +bs_drop_trailing_zeroes(Bs, 0) -> + Bs; bs_drop_trailing_zeroes(Bs0, Sz0) when Sz0 < 8 -> <<Byte:Sz0>> = Bs0, Sz = Sz0 - ntz(Byte), |