mirror of
https://github.com/nlohmann/json.git
synced 2024-12-21 12:05:30 +08:00
47 lines
1.3 KiB
C++
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.
|