| // Copyright 2019 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 <limits> |
| #include <string> |
| #include <vector> |
| |
| #include "base/check.h" |
| #include "base/containers/span.h" |
| #include "base/ranges/algorithm.h" |
| #include "components/base32/base32.h" |
| |
| base32::Base32EncodePolicy GetBase32EncodePolicyFromUint8(uint8_t value) { |
| // Dummy switch to detect changes to the enum definition. |
| switch (base32::Base32EncodePolicy()) { |
| case base32::Base32EncodePolicy::INCLUDE_PADDING: |
| case base32::Base32EncodePolicy::OMIT_PADDING: |
| break; |
| } |
| |
| return (value % 2) == 0 ? base32::Base32EncodePolicy::INCLUDE_PADDING |
| : base32::Base32EncodePolicy::OMIT_PADDING; |
| } |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| if (size < 2 || size > std::numeric_limits<size_t>::max() / 5) |
| return 0; |
| |
| const base32::Base32EncodePolicy encode_policy = |
| GetBase32EncodePolicyFromUint8(data[0]); |
| const base::span<const uint8_t> input_bytes(data + 1, size - 1); |
| std::string encoded_string = base32::Base32Encode(input_bytes, encode_policy); |
| std::vector<uint8_t> decoded_bytes = base32::Base32Decode(encoded_string); |
| CHECK(base::ranges::equal(input_bytes, decoded_bytes)); |
| return 0; |
| } |