ICU-66108.tar.gz

[apple/icu.git] / icuSources / test / fuzzer / number_format_fuzzer.cpp

diff --git a/icuSources/test/fuzzer/number_format_fuzzer.cpp b/icuSources/test/fuzzer/number_format_fuzzer.cpp
new file mode 100644 (file)
index 0000000..4be2f97
--- /dev/null
+++ b/icuSources/test/fuzzer/number_format_fuzzer.cpp
@@ -0,0 +1,45 @@
+// © 2019 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+// Fuzzer for NumberFormat::parse.
+
+#include <cstring>
+#include <stddef.h>
+#include <stdint.h>
+#include <string>
+#include <memory>
+#include "fuzzer_utils.h"
+#include "unicode/numfmt.h"
+
+IcuEnvironment* env = new IcuEnvironment();
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  UErrorCode status = U_ZERO_ERROR;
+  uint16_t rnd = 0;
+
+  if (size < 2) {
+    return 0;
+  }
+
+  rnd = *(reinterpret_cast<const uint16_t *>(data));
+  data = data + 2;
+  size = size - 2;
+
+  size_t unistr_size = size/2;
+  std::unique_ptr<char16_t[]> fuzzbuff(new char16_t[unistr_size]);
+  std::memcpy(fuzzbuff.get(), data, unistr_size * 2);
+
+  const icu::Locale& locale = GetRandomLocale(rnd);
+
+  std::unique_ptr<icu::NumberFormat> fmt(
+      icu::NumberFormat::createInstance(locale, status));
+  if (U_FAILURE(status)) {
+    return 0;
+  }
+
+  icu::UnicodeString fuzzstr(false, fuzzbuff.get(), unistr_size);
+  icu::Formattable result;
+  fmt->parse(fuzzstr, result, status);
+
+  return 0;
+}