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ICU-22549 Add DateTimePatternGenerator fuzzer

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See #2708
This commit is contained in:
Frank Tang 2023-11-18 06:40:08 +00:00 • committed by Frank Yung-Fong Tang
parent 276d3dc865
commit 0bfa5f4c44
2 changed files with 57 additions and 1 deletions
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2
icu4c/source/test/fuzzer/Makefile.in
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@ -33,7 +33,7 @@ CPPFLAGS += -I$(srcdir) -I$(top_srcdir)/common -I$(top_srcdir)/i18n -I$(top_srcd
DEFS += -D'U_TOPSRCDIR="$(top_srcdir)/"' -D'U_TOPBUILDDIR="$(BUILDDIR)"'
LIBS = $(LIBCTESTFW) $(LIBICUTOOLUTIL) $(LIBICUIO) $(LIBICUI18N) $(LIBICUUC) $(DEFAULT_LIBS) $(LIB_M)
FUZZER_TARGETS = break_iterator_fuzzer calendar_fuzzer collator_compare_fuzzer collator_rulebased_fuzzer converter_fuzzer date_format_fuzzer list_format_fuzzer locale_fuzzer locale_morph_fuzzer number_format_fuzzer relative_date_time_formatter_fuzzer rule_based_break_iterator_fuzzer ucasemap_fuzzer uloc_canonicalize_fuzzer uloc_for_language_tag_fuzzer uloc_get_name_fuzzer uloc_is_right_to_left_fuzzer uloc_open_keywords_fuzzer unicode_string_codepage_create_fuzzer uregex_open_fuzzer
FUZZER_TARGETS = break_iterator_fuzzer calendar_fuzzer collator_compare_fuzzer collator_rulebased_fuzzer converter_fuzzer date_format_fuzzer date_time_pattern_generator_fuzzer list_format_fuzzer locale_fuzzer locale_morph_fuzzer number_format_fuzzer relative_date_time_formatter_fuzzer rule_based_break_iterator_fuzzer ucasemap_fuzzer uloc_canonicalize_fuzzer uloc_for_language_tag_fuzzer uloc_get_name_fuzzer uloc_is_right_to_left_fuzzer uloc_open_keywords_fuzzer unicode_string_codepage_create_fuzzer uregex_open_fuzzer
OBJECTS = $(FUZZER_TARGETS:%=%.o)
OBJECTS += fuzzer_driver.o locale_util.o

56
icu4c/source/test/fuzzer/date_time_pattern_generator_fuzzer.cpp Normal file
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@ -0,0 +1,56 @@
// © 2019 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include <cstring>
#include "fuzzer_utils.h"
#include "unicode/dtptngen.h"
#include "unicode/localpointer.h"
#include "unicode/locid.h"
IcuEnvironment* env = new IcuEnvironment();
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
UErrorCode status = U_ZERO_ERROR;
uint16_t rnd16;
if (size < 2 + sizeof(rnd16))
return 0;
std::memcpy(&rnd16, data, sizeof(rnd16));
size -= sizeof(rnd16);
data += sizeof(rnd16);
const icu::Locale& locale = GetRandomLocale(rnd16);
std::unique_ptr<char16_t[]> fuzzbuff(new char16_t[size/2]);
std::memcpy(fuzzbuff.get(), data, (size/2)*2);
icu::UnicodeString fuzzstr(false, fuzzbuff.get(), size/2);
icu::LocalPointer<icu::DateTimePatternGenerator > gen(
icu::DateTimePatternGenerator::createInstance(locale, status), status);
if (U_FAILURE(status))
return 0;
status = U_ZERO_ERROR;
gen->getSkeleton(fuzzstr, status);
status = U_ZERO_ERROR;
gen->getBaseSkeleton(fuzzstr, status);
status = U_ZERO_ERROR;
gen->getBaseSkeleton(fuzzstr, status);
status = U_ZERO_ERROR;
gen->getPatternForSkeleton(fuzzstr);
status = U_ZERO_ERROR;
gen->getBestPattern(fuzzstr, status);
status = U_ZERO_ERROR;
icu::DateTimePatternGenerator::staticGetSkeleton(fuzzstr, status);
status = U_ZERO_ERROR;
icu::DateTimePatternGenerator::staticGetBaseSkeleton (fuzzstr, status);
return 0;
}