icuSources/test/fuzzer/number_format_fuzzer.cpp

   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 <cstring>
   7 #include <stddef.h>
   8 #include <stdint.h>
   9 #include <string>
  10 #include <memory>
  11 #include "fuzzer_utils.h"
  12 #include "unicode/numfmt.h"
  13
  14 IcuEnvironment* env = new IcuEnvironment();
  15
  16 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  17   UErrorCode status = U_ZERO_ERROR;
  18   uint16_t rnd = 0;
  19
  20   if (size < 2) {
  21     return 0;
  22   }
  23
  24   rnd = *(reinterpret_cast<const uint16_t *>(data));
  25   data = data + 2;
  26   size = size - 2;
  27
  28   size_t unistr_size = size/2;
  29   std::unique_ptr<char16_t[]> fuzzbuff(new char16_t[unistr_size]);
  30   std::memcpy(fuzzbuff.get(), data, unistr_size * 2);
  31
  32   const icu::Locale& locale = GetRandomLocale(rnd);
  33
  34   std::unique_ptr<icu::NumberFormat> fmt(
  35       icu::NumberFormat::createInstance(locale, status));
  36   if (U_FAILURE(status)) {
  37     return 0;
  38   }
  39
  40   icu::UnicodeString fuzzstr(false, fuzzbuff.get(), unistr_size);
  41   icu::Formattable result;
  42   fmt->parse(fuzzstr, result, status);
  43
  44   return 0;
  45 }