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1 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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2 // See https://llvm.org/LICENSE.txt for license information.
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3 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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4
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5 // Simple test for a fuzzer.
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6 // Needs to find a string "FUZZxxxxxxxxxxxxMxxE", where 'x' is any byte.
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7 #include <assert.h>
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8 #include <cstddef>
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9 #include <cstdint>
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10 #include <cstdlib>
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11 #include <cstdio>
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12
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13 extern "C" bool Func1(const uint8_t *Data, size_t Size);
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14 extern "C" bool Func2(const uint8_t *Data, size_t Size);
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15
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16 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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17 if (Size >= 20
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18 && Data[0] == 'F'
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19 && Data[1] == 'U'
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20 && Data[2] == 'Z'
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21 && Data[3] == 'Z'
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22 && Func1(Data, Size)
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23 && Func2(Data, Size)) {
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24 fprintf(stderr, "BINGO\n");
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25 abort();
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26 }
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27 return 0;
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28 }
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29
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30 extern "C"
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31 __attribute__((noinline))
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32 bool Func1(const uint8_t *Data, size_t Size) {
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33 // assumes Size >= 5, doesn't check it.
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34 return Data[16] == 'M';
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35 }
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36
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37 extern "C"
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38 __attribute__((noinline))
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39 bool Func2(const uint8_t *Data, size_t Size) {
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40 return Size >= 20 && Data[19] == 'E';
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41 }
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