Mirror of BoringSSL (grpc依赖)
https://boringssl.googlesource.com/boringssl
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63 lines
1.5 KiB
63 lines
1.5 KiB
// Copyright 2015 The Chromium Authors |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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#include "input.h" |
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#include <algorithm> |
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#include <openssl/base.h> |
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namespace bssl::der { |
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std::string Input::AsString() const { |
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return std::string(reinterpret_cast<const char *>(data_.data()), |
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data_.size()); |
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} |
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std::string_view Input::AsStringView() const { |
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return std::string_view(reinterpret_cast<const char *>(data_.data()), |
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data_.size()); |
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} |
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bssl::Span<const uint8_t> Input::AsSpan() const { return data_; } |
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bool operator==(const Input &lhs, const Input &rhs) { |
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return lhs.Length() == rhs.Length() && |
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std::equal(lhs.UnsafeData(), lhs.UnsafeData() + lhs.Length(), |
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rhs.UnsafeData()); |
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} |
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bool operator!=(const Input &lhs, const Input &rhs) { return !(lhs == rhs); } |
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ByteReader::ByteReader(const Input &in) |
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: data_(in.UnsafeData()), len_(in.Length()) {} |
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bool ByteReader::ReadByte(uint8_t *byte_p) { |
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if (!HasMore()) { |
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return false; |
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} |
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*byte_p = *data_; |
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Advance(1); |
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return true; |
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} |
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bool ByteReader::ReadBytes(size_t len, Input *out) { |
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if (len > len_) { |
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return false; |
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} |
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*out = Input(data_, len); |
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Advance(len); |
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return true; |
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} |
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// Returns whether there is any more data to be read. |
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bool ByteReader::HasMore() { return len_ > 0; } |
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void ByteReader::Advance(size_t len) { |
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BSSL_CHECK(len <= len_); |
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data_ += len; |
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len_ -= len; |
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} |
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} // namespace bssl::der
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