icuSources/test/fuzzer/number_format_fuzzer.cc

   1 // © 2019 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3
   4 // Fuzzer for NumberFormat::parse.
   5
   6 #include <stddef.h>
   7 #include <stdint.h>
   8 #include <memory>
   9 #include "fuzzer_utils.h"
  10 #include "unicode/numfmt.h"
  11
  12 IcuEnvironment* env = new IcuEnvironment();
  13
  14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  15   UErrorCode status = U_ZERO_ERROR;
  16   uint16_t rnd = 0;
  17
  18   if (size < 2) {
  19     return 0;
  20   }
  21
  22   rnd = *(reinterpret_cast<const uint16_t *>(data));
  23   data = data + 2;
  24   size = size - 2;
  25
  26   size_t unistr_size = size/2;
  27   std::unique_ptr<char16_t[]> fuzzbuff(new char16_t[unistr_size]);
  28   std::memcpy(fuzzbuff.get(), data, unistr_size * 2);
  29
  30   const icu::Locale& locale = GetRandomLocale(rnd);
  31
  32   std::unique_ptr<icu::NumberFormat> fmt(
  33       icu::NumberFormat::createInstance(locale, status));
  34   if (U_FAILURE(status)) {
  35     return 0;
  36   }
  37
  38   icu::UnicodeString fuzzstr(false, fuzzbuff.get(), unistr_size);
  39   icu::Formattable result;
  40   fmt->parse(fuzzstr, result, status);
  41
  42   return 0;
  43 }