1 // This file is distributed under the University of Illinois Open Source
2 // License. See LICENSE.TXT for details.
3 
4 // Test that we can find the minimal item in the corpus (3 bytes: "FUZ").
5 #include <cstddef>
6 #include <cstdint>
7 #include <cstdio>
8 #include <cstdlib>
9 #include <cstring>
10 
11 static volatile int Sink;
12 
13 void Foo() {
14   Sink++;
15 }
16 
17 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
18   int8_t Ids[256];
19   memset(Ids, -1, sizeof(Ids));
20   for (size_t i = 0; i < Size; i++)
21     if (Ids[Data[i]] == -1)
22       Ids[Data[i]] = i;
23   int F = Ids[(unsigned char)'F'];
24   int U = Ids[(unsigned char)'U'];
25   int Z = Ids[(unsigned char)'Z'];
26   if (F >= 0 && U > F && Z > U) {
27     Foo();
28   }
29   return 0;
30 }
31 
32