xref: /aosp_15_r20/external/llvm/lib/Fuzzer/test/FourIndependentBranchesTest.cpp (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker // This file is distributed under the University of Illinois Open Source
2*9880d681SAndroid Build Coastguard Worker // License. See LICENSE.TXT for details.
3*9880d681SAndroid Build Coastguard Worker 
4*9880d681SAndroid Build Coastguard Worker // Simple test for a fuzzer. The fuzzer must find the string "FUZZ".
5*9880d681SAndroid Build Coastguard Worker #include <cstdint>
6*9880d681SAndroid Build Coastguard Worker #include <cstdlib>
7*9880d681SAndroid Build Coastguard Worker #include <cstddef>
8*9880d681SAndroid Build Coastguard Worker #include <iostream>
9*9880d681SAndroid Build Coastguard Worker 
LLVMFuzzerTestOneInput(const uint8_t * Data,size_t Size)10*9880d681SAndroid Build Coastguard Worker extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
11*9880d681SAndroid Build Coastguard Worker   int bits = 0;
12*9880d681SAndroid Build Coastguard Worker   if (Size > 0 && Data[0] == 'F') bits |= 1;
13*9880d681SAndroid Build Coastguard Worker   if (Size > 1 && Data[1] == 'U') bits |= 2;
14*9880d681SAndroid Build Coastguard Worker   if (Size > 2 && Data[2] == 'Z') bits |= 4;
15*9880d681SAndroid Build Coastguard Worker   if (Size > 3 && Data[3] == 'Z') bits |= 8;
16*9880d681SAndroid Build Coastguard Worker   if (bits == 15) {
17*9880d681SAndroid Build Coastguard Worker     std::cerr <<  "BINGO!\n";
18*9880d681SAndroid Build Coastguard Worker     exit(1);
19*9880d681SAndroid Build Coastguard Worker   }
20*9880d681SAndroid Build Coastguard Worker   return 0;
21*9880d681SAndroid Build Coastguard Worker }
22*9880d681SAndroid Build Coastguard Worker 
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