+++ /dev/null
-#pragma once
-/******************************************************************************
-*
-* Copyright (c) 2019 AT&T Intellectual Property.
-* Copyright (c) 2018-2019 Nokia.
-*
-* Licensed under the Apache License, Version 2.0 (the "License");
-* you may not use this file except in compliance with the License.
-* You may obtain a copy of the License at
-*
-* http://www.apache.org/licenses/LICENSE-2.0
-*
-* Unless required by applicable law or agreed to in writing, software
-* distributed under the License is distributed on an "AS IS" BASIS,
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-* See the License for the specific language governing permissions and
-* limitations under the License.
-*
-******************************************************************************/
-
-// Standard Includes: ANSI C/C++, MSA, and Third-Party Libraries
-
-// Local Includes: Application specific classes, functions, and libraries
-
-namespace asn {
-namespace ber {
-
-constexpr size_t indefinite_length = std::numeric_limits<size_t>::max();
-
-/***************************************************************************************
-* Length
-***************************************************************************************/
-struct Length
-{
- static size_t inline get(int64_t value)
- {
- size_t length = 1;
-
- if(value != 0)
- {
- size_t extra_sign_bits = __builtin_clrsbll(value);
- length = sizeof(value) - (extra_sign_bits >> 3) ;
- }
-
- return length;
- }
-
- static void inline encode(size_t length, EncoderCtx& ctx)
- {
- auto & buffer = ctx.refBuffer();
-
- if(length <= 0x7F)
- {
- buffer.putByte(static_cast<uint8_t>(length));
- }
- else
- {
- size_t lenlen = get(length);
- if(lenlen > 0x7F)
- {
- ctx.refErrorCtx().sizeRangeError(length, 0, 0x7F);
- }
- else
- {
- uint8_t bt = static_cast<uint8_t>(lenlen);
- bt |= 0x80;
- buffer.putByte(bt);
- Tools::put_bytes(length, lenlen, ctx);
- }
- }
-
- }
-
- static size_t inline decode(DecoderCtx& ctx)
- {
- auto & buffer = ctx.refBuffer();
- size_t length = 0;
-
- uint8_t const* data = buffer.getBytes(1);
-
- if(data)
- {
- if(!(data[0] & 0x80))
- {
- length = data[0];
- }
- else
- {
- size_t lenlen = data[0] & 0x7F;
-
- if(lenlen)
- Tools::get_bytes(length, lenlen, ctx);
- else
- length = indefinite_length;
- }
- }
-
- return length;
- }
-};
-
-} //namespace ber
-} //namespace asn