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// © 2019 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// Fuzzer for ICU Locales.
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <cstdlib>
#include <set>
#include <string>
#include <vector>
#include "unicode/locid.h"
#include "unicode/localpointer.h"
#include "unicode/stringpiece.h"
#include "locale_util.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (size < 1) return 0;
icu::StringPiece fuzzData(reinterpret_cast<const char *>(data), size);
uint8_t rnd = *fuzzData.data();
fuzzData.remove_prefix(1);
const std::string input = MakeZeroTerminatedInput(
(const uint8_t*)(fuzzData.data()), fuzzData.length());
icu::Locale locale(input.c_str());
UErrorCode status = U_ZERO_ERROR;
switch(rnd % 8) {
case 0:
locale.addLikelySubtags(status);
break;
case 1:
locale.minimizeSubtags(status);
break;
case 2:
locale.canonicalize(status);
break;
case 3:
{
icu::LocalPointer<icu::StringEnumeration> senum(
locale.createKeywords(status), status);
while (U_SUCCESS(status) &&
(senum->next(nullptr, status)) != nullptr) {
// noop
}
}
break;
case 4:
{
icu::LocalPointer<icu::StringEnumeration> senum(
locale.createUnicodeKeywords(status), status);
while (U_SUCCESS(status) &&
(senum->next(nullptr, status)) != nullptr) {
// noop
}
}
break;
case 5:
{
char buf[256];
icu::CheckedArrayByteSink sink(buf, rnd);
locale.toLanguageTag(sink, status);
}
break;
case 6:
{
std::set<std::string> keys;
locale.getKeywords<std::string>(
std::insert_iterator<decltype(keys)>(keys, keys.begin()),
status);
if (U_SUCCESS(status)) {
char buf[256];
icu::CheckedArrayByteSink sink(buf, rnd);
for (std::set<std::string>::iterator it=keys.begin();
it!=keys.end();
++it) {
locale.getKeywordValue(
icu::StringPiece(it->c_str(), it->length()), sink,
status);
}
}
}
break;
case 7:
{
std::set<std::string> keys;
locale.getUnicodeKeywords<std::string>(
std::insert_iterator<decltype(keys)>(keys, keys.begin()),
status);
if (U_SUCCESS(status)) {
char buf[256];
icu::CheckedArrayByteSink sink(buf, rnd);
for (std::set<std::string>::iterator it=keys.begin();
it!=keys.end();
++it) {
locale.getUnicodeKeywordValue(
icu::StringPiece(it->c_str(), it->length()), sink,
status);
}
}
}
break;
default:
break;
}
return EXIT_SUCCESS;
}
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