1 // © 2023 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3
4 // Fuzzer for ICU DateFormatSymbols.
5
6 #include <cstring>
7
8 #include "fuzzer_utils.h"
9
10 #include "unicode/dtfmtsym.h"
11 #include "unicode/locid.h"
12
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)13 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
14 uint16_t rnd;
15 icu::DateFormatSymbols::DtContextType context;
16 icu::DateFormatSymbols::DtWidthType width;
17 if (size < sizeof(rnd) + sizeof(context) + sizeof(width)) return 0;
18 icu::StringPiece fuzzData(reinterpret_cast<const char *>(data), size);
19
20 std::memcpy(&rnd, fuzzData.data(), sizeof(rnd));
21 icu::Locale locale = GetRandomLocale(rnd);
22 fuzzData.remove_prefix(sizeof(rnd));
23
24 std::memcpy(&context, fuzzData.data(), sizeof(context));
25 fuzzData.remove_prefix(sizeof(context));
26 icu::DateFormatSymbols::DtContextType context_mod =
27 static_cast<icu::DateFormatSymbols::DtContextType>(
28 context % icu::DateFormatSymbols::DtContextType::DT_CONTEXT_COUNT);
29 ;
30 std::memcpy(&width, fuzzData.data(), sizeof(width));
31 fuzzData.remove_prefix(sizeof(width));
32 icu::DateFormatSymbols::DtWidthType width_mod =
33 static_cast<icu::DateFormatSymbols::DtWidthType>(
34 width % icu::DateFormatSymbols::DtWidthType::DT_WIDTH_COUNT);
35
36 size_t len = fuzzData.size() / sizeof(char16_t);
37 icu::UnicodeString text(false, reinterpret_cast<const char16_t*>(fuzzData.data()), len);
38 const icu::UnicodeString items[] = { text, text, text, text };
39
40 UErrorCode status = U_ZERO_ERROR;
41 std::unique_ptr<icu::DateFormatSymbols> dfs(
42 new icu::DateFormatSymbols(locale, status));
43 if (U_FAILURE(status)) {
44 return EXIT_SUCCESS;
45 }
46
47 int32_t count;
48 dfs->getEras(count);
49 dfs->getEraNames(count);
50 dfs->getNarrowEras(count);
51 dfs->getMonths(count);
52 dfs->getShortMonths(count);
53 dfs->getMonths(count, context, width);
54 dfs->getMonths(count, context_mod, width_mod);
55 dfs->getWeekdays(count);
56 dfs->getShortWeekdays(count);
57 dfs->getWeekdays(count, context, width);
58 dfs->getWeekdays(count, context_mod, width_mod);
59 dfs->getShortWeekdays(count);
60 dfs->getQuarters(count, context_mod, width_mod);
61 dfs->getAmPmStrings(count);
62
63 icu::UnicodeString output;
64 dfs->getTimeSeparatorString(output);
65 dfs->getYearNames(count, context, width);
66 dfs->getYearNames(count, context_mod, width_mod);
67 dfs->getZodiacNames(count, context, width);
68 dfs->getZodiacNames(count, context_mod, width_mod);
69 dfs->getLeapMonthPatterns(count);
70 int32_t count2;
71 dfs->getZoneStrings(count, count2);
72 dfs->getLocalPatternChars(output);
73
74 return EXIT_SUCCESS;
75 }
76