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// Copyright 2018 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 <string>
#include "components/autofill/core/browser/password_generator_fips181.h"
namespace autofill {
namespace {
const char* g_password_text = nullptr;
// The "PasswordGeneratorFips181" is a wrapper around Fips181's gen_pron_pass().
// The former processes the random string from the latter and ensures that it
// meets some constraints. GenerateForTest here substitutes for gen_pron_pass(),
// so that the fuzzer tests the wrapper's logic rather than the third-party's
// generator implementation.
int GenerateForTest(char* word,
char* hypenated_word,
unsigned short minlen,
unsigned short maxlen,
unsigned int pass_mode) {
strncpy(word, g_password_text, maxlen);
g_password_text = nullptr;
// Resize password to |maxlen|.
word[maxlen] = '\0';
return static_cast<int>(strlen(word));
}
} // namespace
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
autofill::PasswordGeneratorFips181::SetGeneratorForTest(GenerateForTest);
std::string generator_string(reinterpret_cast<const char*>(data), size);
g_password_text = generator_string.c_str();
autofill::PasswordGeneratorFips181 pg(size);
std::string password = pg.Generate();
autofill::PasswordGeneratorFips181::SetGeneratorForTest(nullptr);
return 0;
}
} // namespace autofill
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