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      1 // Simple test for a fuzzer. The fuzzer must find a particular string.
      2 #include <cstring>
      3 #include <cstdint>
      4 #include <cstdio>
      5 #include <cstdlib>
      6 
      7 static volatile int sink;
      8 
      9 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
     10   // TODO: check other sizes.
     11   char *S = (char*)Data;
     12   if (Size >= 8 && strncmp(S, "123", 8))
     13     sink = 1;
     14   if (Size >= 8 && strncmp(S, "01234567", 8) == 0) {
     15     if (Size >= 12 && strncmp(S + 8, "ABCD", 4) == 0) {
     16       if (Size >= 14 && strncmp(S + 12, "XY", 2) == 0) {
     17         if (Size >= 16 && strncmp(S + 14, "KLM", 3) == 0) {
     18           fprintf(stderr, "BINGO\n");
     19           exit(1);
     20         }
     21       }
     22     }
     23   }
     24   return 0;
     25 }
     26