xref: /aosp_15_r20/external/cronet/testing/libfuzzer/fuzzers/prtime_fuzzer.cc (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1 // Copyright 2016 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include <stddef.h>
6 #include <stdint.h>
7 
8 #include <string>
9 
10 #include "base/third_party/nspr/prtime.h"
11 
12 PRTime parsed_time;
13 
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)14 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
15   if (size < 1)
16     return 0;
17 
18   const uint8_t selector = data[0];
19 
20   // Using std::string instead of a (potentially faster) fixed buffer to catch
21   // accesses beyond the end of the string.
22   std::string str(reinterpret_cast<const char*>(data+1), size - 1);
23   PR_ParseTimeString(str.c_str(), selector & 1, &parsed_time);
24 
25   return 0;
26 }
27