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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <stdint.h>
#include <functional>
#include "base/strings/string_piece.h"
#include "net/base/address_list.h"
#include "net/base/ip_address.h"
// Entry point for LibFuzzer.
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
const base::StringPiece hostname(reinterpret_cast<const char*>(data), size);
net::IPAddress address;
if (net::ParseURLHostnameToAddress(hostname, &address)) {
// To fuzz port number without spending raw bytes of data, use hash(data).
std::size_t data_hash = std::hash<std::string>()(std::string(hostname));
uint16_t port = static_cast<uint16_t>(data_hash & 0xFFFF);
net::AddressList addresses =
net::AddressList::CreateFromIPAddress(address, port);
for (const auto& endpoint : addresses) {
endpoint.ToString();
}
}
return 0;
}
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