50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
// © 2019 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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// Fuzzer for ICU Locales.
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#include <algorithm>
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#include <cstddef>
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#include <cstdint>
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#include <cstdlib>
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#include <string>
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#include <vector>
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#include "unicode/locid.h"
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namespace {
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void ConsumeNBytes(const uint8_t** data, size_t* size, size_t N) {
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*data += N;
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*size -= N;
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}
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uint8_t ConsumeUint8(const uint8_t** data, size_t* size) {
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uint8_t tmp = 0;
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if (*size >= 1) {
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tmp = (*data)[0];
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ConsumeNBytes(data, size, 1);
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}
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return tmp;
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}
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std::string ConsumeSubstring(const uint8_t** data, size_t* size) {
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const size_t request_size = ConsumeUint8(data, size);
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const char* substring_start = reinterpret_cast<const char*>(*data);
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const size_t substring_size = std::min(*size, request_size);
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ConsumeNBytes(data, size, substring_size);
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return std::string(substring_start, substring_size);
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}
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} // namespace
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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const std::string language = ConsumeSubstring(&data, &size);
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const std::string country = ConsumeSubstring(&data, &size);
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const std::string variant = ConsumeSubstring(&data, &size);
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const std::string kv_pairs = ConsumeSubstring(&data, &size);
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icu::Locale locale(language.c_str(), country.c_str(), variant.c_str(),
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kv_pairs.c_str());
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return EXIT_SUCCESS;
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}
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