46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
// Copyright 2016 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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#ifndef NET_DNS_FUZZED_HOST_RESOLVER_UTIL_H_
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#define NET_DNS_FUZZED_HOST_RESOLVER_UTIL_H_
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#include <memory>
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#include "net/dns/host_resolver.h"
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class FuzzedDataProvider;
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namespace net {
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class ContextHostResolver;
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class NetLog;
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// Creates a ContextHostResolver that uses a fuzzer to determine what results to
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// return. It inherits from ContextHostResolver, unlike MockHostResolver, so
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// more closely matches real behavior.
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//
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// By default uses a mocked out system resolver, though can be configured to use
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// the built-in async resolver (Built in DNS stub resolver) with a fuzzed set
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// of UDP/TCP sockets by setting ManagerOptions.insecure_dns_client_enabled to
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// true or calling SetInsecureDnsClientEnabled on the underlying
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// HostResolverManager.
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//
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// To make behavior most deterministic, it is recommended that tests and fuzzers
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// run all system DNS resolution on the current thread.
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//
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// Note that it does not attempt to sort the resulting AddressList when using
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// the mock system resolver path.
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//
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// The async DNS client can make system calls in AddressSorterPosix, but other
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// methods that make system calls are stubbed out.
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std::unique_ptr<ContextHostResolver> CreateFuzzedContextHostResolver(
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const HostResolver::ManagerOptions& options,
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NetLog* net_log,
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FuzzedDataProvider* data_provider,
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bool enable_caching);
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} // namespace net
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#endif // NET_DNS_FUZZED_HOST_RESOLVER_UTIL_H_
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