103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
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// Copyright 2022 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 <stdint.h>
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#include <string>
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#include <tuple>
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#include <fuzzer/FuzzedDataProvider.h>
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#include "net/der/input.h"
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#include "net/der/parse_values.h"
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#include "net/der/parser.h"
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#include "net/der/tag.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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FuzzedDataProvider provider(data, size);
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std::string der = provider.ConsumeRandomLengthString();
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net::der::Parser parser = net::der::Parser(net::der::Input(&der));
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while (provider.remaining_bytes()) {
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switch (provider.ConsumeIntegralInRange<int>(0, 13)) {
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case 0: {
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net::der::Tag tag;
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net::der::Input value;
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std::ignore = parser.ReadTagAndValue(&tag, &value);
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break;
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}
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case 1: {
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net::der::Input tlv;
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std::ignore = parser.ReadRawTLV(&tlv);
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break;
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}
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case 2: {
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absl::optional<net::der::Input> value;
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std::ignore = parser.ReadOptionalTag(
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provider.ConsumeIntegral<net::der::Tag>(), &value);
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break;
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}
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case 3: {
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bool was_present;
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std::ignore = parser.SkipOptionalTag(
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provider.ConsumeIntegral<net::der::Tag>(), &was_present);
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break;
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}
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case 4: {
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net::der::Input value;
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std::ignore =
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parser.ReadTag(provider.ConsumeIntegral<net::der::Tag>(), &value);
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break;
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}
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case 5: {
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std::ignore = parser.SkipTag(provider.ConsumeIntegral<net::der::Tag>());
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break;
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}
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case 6: {
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net::der::Parser new_parser;
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std::ignore = parser.ReadConstructed(
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provider.ConsumeIntegral<net::der::Tag>(), &new_parser);
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break;
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}
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case 7: {
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net::der::Parser new_parser;
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std::ignore = parser.ReadSequence(&new_parser);
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break;
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}
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case 8: {
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uint8_t value;
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std::ignore = parser.ReadUint8(&value);
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break;
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}
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case 9: {
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uint64_t value;
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std::ignore = parser.ReadUint64(&value);
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break;
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}
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case 10: {
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std::ignore = parser.ReadBitString();
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break;
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}
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case 11: {
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net::der::GeneralizedTime generalized_time;
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std::ignore = parser.ReadGeneralizedTime(&generalized_time);
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break;
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}
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case 12: {
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net::der::Tag tag;
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net::der::Input value;
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std::ignore = parser.PeekTagAndValue(&tag, &value);
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break;
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}
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case 13: {
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std::ignore = parser.Advance();
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break;
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}
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}
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}
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return 0;
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}
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