| 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 | #include <stddef.h> |
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| 5 | #include <stdint.h> |
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| 6 | #include <stdio.h> |
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| 7 | |
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| 8 | // Test for libFuzzer's "equivalence" fuzzing, part B. |
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| 9 | extern "C" void LLVMFuzzerAnnounceOutput(const uint8_t *Data, size_t Size); |
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| 10 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { |
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| 11 | // fprintf(stderr, "B %zd\n", Size); |
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| 12 | uint8_t Result[50]; |
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| 13 | if (Size > 50) Size = 50; |
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| 14 | for (size_t i = 0; i < Size; i++) |
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| 15 | Result[Size - i - 1] = Data[i]; |
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| 16 | |
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| 17 | // Be a bit different from EquivalenceATest |
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| 18 | if (Size > 10 && Data[5] == 'B' && Data[6] == 'C' && Data[7] == 'D') { |
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| 19 | static int c; |
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| 20 | if (!c) |
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| 21 | fprintf(stderr, format: "ZZZZZZZ\n" ); |
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| 22 | c = 1; |
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| 23 | Result[2]++; |
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| 24 | } |
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| 25 | |
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| 26 | LLVMFuzzerAnnounceOutput(Data: Result, Size); |
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| 27 | return 0; |
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| 28 | } |
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| 29 | |
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