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ICU-22549 Add DateFormatSymbols fuzzer

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Frank Tang 2023-12-15 11:26:49 -08:00 • committed by Frank Yung-Fong Tang
parent 7bef50e71d
commit 4ba5d9191b
2 changed files with 76 additions and 0 deletions
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1
icu4c/source/test/fuzzer/Makefile.in
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@ -39,6 +39,7 @@ FUZZER_TARGETS = \
collator_rulebased_fuzzer \
converter_fuzzer date_format_fuzzer \
date_time_pattern_generator_fuzzer \
dtfmtsym_fuzzer \
list_format_fuzzer locale_fuzzer \
locale_morph_fuzzer \
normalizer2_fuzzer \

75
icu4c/source/test/fuzzer/dtfmtsym_fuzzer.cpp Normal file
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@ -0,0 +1,75 @@
// © 2023 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Fuzzer for ICU DateFormatSymbols.
#include <cstring>
#include "fuzzer_utils.h"
#include "unicode/dtfmtsym.h"
#include "unicode/locid.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
uint16_t rnd;
icu::DateFormatSymbols::DtContextType context;
icu::DateFormatSymbols::DtWidthType width;
if (size < sizeof(rnd) + sizeof(context) + sizeof(width)) return 0;
icu::StringPiece fuzzData(reinterpret_cast<const char *>(data), size);
std::memcpy(&rnd, fuzzData.data(), sizeof(rnd));
icu::Locale locale = GetRandomLocale(rnd);
fuzzData.remove_prefix(sizeof(rnd));
std::memcpy(&context, fuzzData.data(), sizeof(context));
fuzzData.remove_prefix(sizeof(context));
icu::DateFormatSymbols::DtContextType context_mod =
static_cast<icu::DateFormatSymbols::DtContextType>(
context % icu::DateFormatSymbols::DtContextType::DT_CONTEXT_COUNT);
;
std::memcpy(&width, fuzzData.data(), sizeof(width));
fuzzData.remove_prefix(sizeof(width));
icu::DateFormatSymbols::DtWidthType width_mod =
static_cast<icu::DateFormatSymbols::DtWidthType>(
width % icu::DateFormatSymbols::DtWidthType::DT_WIDTH_COUNT);
size_t len = fuzzData.size() / sizeof(char16_t);
icu::UnicodeString text(false, reinterpret_cast<const char16_t*>(fuzzData.data()), len);
const icu::UnicodeString items[] = { text, text, text, text };
UErrorCode status = U_ZERO_ERROR;
std::unique_ptr<icu::DateFormatSymbols> dfs(
new icu::DateFormatSymbols(locale, status));
if (U_FAILURE(status)) {
return EXIT_SUCCESS;
}
int32_t count;
dfs->getEras(count);
dfs->getEraNames(count);
dfs->getNarrowEras(count);
dfs->getMonths(count);
dfs->getShortMonths(count);
dfs->getMonths(count, context, width);
dfs->getMonths(count, context_mod, width_mod);
dfs->getWeekdays(count);
dfs->getShortWeekdays(count);
dfs->getWeekdays(count, context, width);
dfs->getWeekdays(count, context_mod, width_mod);
dfs->getShortWeekdays(count);
dfs->getQuarters(count, context_mod, width_mod);
dfs->getAmPmStrings(count);
icu::UnicodeString output;
dfs->getTimeSeparatorString(output);
dfs->getYearNames(count, context, width);
dfs->getYearNames(count, context_mod, width_mod);
dfs->getZodiacNames(count, context, width);
dfs->getZodiacNames(count, context_mod, width_mod);
dfs->getLeapMonthPatterns(count);
int32_t count2;
dfs->getZoneStrings(count, count2);
dfs->getLocalPatternChars(output);
return EXIT_SUCCESS;
}