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- // Copyright 2017 The Chromium Authors. All rights reserved.
- // 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 <fuzzer/FuzzedDataProvider.h>
- #include <string>
- #include <vector>
- #include "base/containers/span.h"
- #include "net/ntlm/ntlm_client.h"
- #include "net/ntlm/ntlm_test_data.h"
- std::u16string ConsumeRandomLengthString16(FuzzedDataProvider& data_provider,
- size_t max_chars) {
- std::string bytes = data_provider.ConsumeRandomLengthString(max_chars * 2);
- return std::u16string(reinterpret_cast<const char16_t*>(bytes.data()),
- bytes.size() / 2);
- }
- extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
- FuzzedDataProvider fdp(data, size);
- bool is_v2 = fdp.ConsumeBool();
- uint64_t client_time = fdp.ConsumeIntegral<uint64_t>();
- net::ntlm::NtlmClient client((net::ntlm::NtlmFeatures(is_v2)));
- // Generate the input strings and challenge message. The strings will have a
- // maximum length 1 character longer than the maximum that |NtlmClient| will
- // accept to allow exploring the error cases.
- std::u16string domain =
- ConsumeRandomLengthString16(fdp, net::ntlm::kMaxFqdnLen + 1);
- std::u16string username =
- ConsumeRandomLengthString16(fdp, net::ntlm::kMaxUsernameLen + 1);
- std::u16string password =
- ConsumeRandomLengthString16(fdp, net::ntlm::kMaxPasswordLen + 1);
- std::string hostname =
- fdp.ConsumeRandomLengthString(net::ntlm::kMaxFqdnLen + 1);
- std::string channel_bindings = fdp.ConsumeRandomLengthString(150);
- std::string spn =
- fdp.ConsumeRandomLengthString(net::ntlm::kMaxFqdnLen + 5 + 1);
- std::vector<uint8_t> challenge_msg_bytes =
- fdp.ConsumeRemainingBytes<uint8_t>();
- client.GenerateAuthenticateMessage(
- domain, username, password, hostname, channel_bindings, spn, client_time,
- net::ntlm::test::kClientChallenge, base::make_span(challenge_msg_bytes));
- return 0;
- }
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