irrlicht/source/lib/json/tests/thirdparty/Fuzzer/test/SimpleCmpTest.cpp
2023-11-26 01:34:57 -05:00

47 lines
1.3 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 several narrow ranges.
#include <cstdint>
#include <cstdlib>
#include <cstring>
#include <cstdio>
extern int AllLines[];
bool PrintOnce(int Line) {
if (!AllLines[Line])
fprintf(stderr, "Seen line %d\n", Line);
AllLines[Line] = 1;
return true;
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
if (Size != 22) return 0;
uint64_t x = 0;
int64_t y = 0;
int32_t z = 0;
uint16_t a = 0;
memcpy(&x, Data, 8); // 8
memcpy(&y, Data + 8, 8); // 16
memcpy(&z, Data + 16, sizeof(z)); // 20
memcpy(&a, Data + 20, sizeof(a)); // 22
if (x > 1234567890 && PrintOnce(__LINE__) &&
x < 1234567895 && PrintOnce(__LINE__) &&
a == 0x4242 && PrintOnce(__LINE__) &&
y >= 987654321 && PrintOnce(__LINE__) &&
y <= 987654325 && PrintOnce(__LINE__) &&
z < -10000 && PrintOnce(__LINE__) &&
z >= -10005 && PrintOnce(__LINE__) &&
z != -10003 && PrintOnce(__LINE__) &&
true) {
fprintf(stderr, "BINGO; Found the target: size %zd (%zd, %zd, %d, %d), exiting.\n",
Size, x, y, z, a);
exit(1);
}
return 0;
}
int AllLines[__LINE__ + 1]; // Must be the last line.