1 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2 // See https://llvm.org/LICENSE.txt for license information.
3 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4 
5 // Simple test for a fuzzer. The fuzzer must find a particular string.
6 #include <cstdint>
7 #include <cstdio>
8 #include <cstdlib>
9 #include <cstring>
10 
11 static volatile int sink;
12 
13 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
14   // TODO: check other sizes.
15   const char *S = (const char*)Data;
16   if (Size >= 8 && strncmp(S, "123", 8))
17     sink = 1;
18   if (Size >= 8 && strncmp(S, "01234567", 8) == 0) {
19     if (Size >= 12 && strncmp(S + 8, "ABCD", 4) == 0) {
20       if (Size >= 14 && strncmp(S + 12, "XY", 2) == 0) {
21         if (Size >= 17 && strncmp(S + 14, "KLM", 3) == 0) {
22           fprintf(stderr, "BINGO\n");
23           exit(1);
24         }
25       }
26     }
27   }
28   return 0;
29 }
30