mirror of
https://github.com/nlohmann/json.git
synced 2024-12-21 03:47:52 +08:00
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
|
|
// Simple test for a fuzzer. The fuzzer must find the interesting switch value.
|
|
#include <cstdint>
|
|
#include <cstdlib>
|
|
#include <cstdio>
|
|
#include <cstring>
|
|
#include <cstddef>
|
|
|
|
static volatile int Sink;
|
|
|
|
template<class T>
|
|
bool Switch(const uint8_t *Data, size_t Size) {
|
|
T X;
|
|
if (Size < sizeof(X)) return false;
|
|
memcpy(&X, Data, sizeof(X));
|
|
switch (X) {
|
|
case 1: Sink = __LINE__; break;
|
|
case 101: Sink = __LINE__; break;
|
|
case 1001: Sink = __LINE__; break;
|
|
case 10001: Sink = __LINE__; break;
|
|
// case 100001: Sink = __LINE__; break;
|
|
// case 1000001: Sink = __LINE__; break;
|
|
case 10000001: Sink = __LINE__; break;
|
|
case 100000001: return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool ShortSwitch(const uint8_t *Data, size_t Size) {
|
|
short X;
|
|
if (Size < sizeof(short)) return false;
|
|
memcpy(&X, Data, sizeof(short));
|
|
switch(X) {
|
|
case 42: Sink = __LINE__; break;
|
|
case 402: Sink = __LINE__; break;
|
|
case 4002: Sink = __LINE__; break;
|
|
case 5002: Sink = __LINE__; break;
|
|
case 7002: Sink = __LINE__; break;
|
|
case 9002: Sink = __LINE__; break;
|
|
case 14002: Sink = __LINE__; break;
|
|
case 21402: return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
|
|
if (Size >= 4 && Switch<int>(Data, Size) &&
|
|
Size >= 12 && Switch<uint64_t>(Data + 4, Size - 4) &&
|
|
Size >= 14 && ShortSwitch(Data + 12, 2)
|
|
) {
|
|
fprintf(stderr, "BINGO; Found the target, exiting\n");
|
|
exit(1);
|
|
}
|
|
return 0;
|
|
}
|
|
|