1 // This file is distributed under the University of Illinois Open Source
2 // License. See LICENSE.TXT for details.
3 
4 // Test strstr and strcasestr hooks.
5 #include <cstdint>
6 #include <cstdio>
7 #include <cstdlib>
8 #include <string.h>
9 #include <string>
10 
11 // Windows does not have strcasestr and memmem, so we are not testing them.
12 #ifdef _WIN32
13 #define strcasestr strstr
14 #define memmem(a, b, c, d) true
15 #endif
16 
17 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
18   if (Size < 4) return 0;
19   std::string s(reinterpret_cast<const char*>(Data), Size);
20   if (strstr(s.c_str(), "FUZZ") &&
21       strcasestr(s.c_str(), "aBcD") &&
22       memmem(s.data(), s.size(), "kuku", 4)
23       ) {
24     fprintf(stderr, "BINGO\n");
25     exit(1);
26   }
27   return 0;
28 }
29