| 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. The fuzzer must find the deep recursion. |
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| 6 | // To generate a crashy input: |
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| 7 | // for((i=0;i<110;i++)); do echo -n ABCDEFGHIJ >> INPUT; done |
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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 | |
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| 12 | static volatile int Sink; |
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| 13 | |
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| 14 | void Recursive(const uint8_t *Data, size_t Size, int Depth) { |
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| 15 | if (Depth > 1000) abort(); |
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| 16 | if (!Size) return; |
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| 17 | if (*Data == ('A' + Depth % 10)) |
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| 18 | Recursive(Data: Data + 1, Size: Size - 1, Depth: Depth + 1); |
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| 19 | Sink++; |
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| 20 | } |
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| 21 | |
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| 22 | extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { |
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| 23 | Recursive(Data, Size, Depth: 0); |
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| 24 | return 0; |
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| 25 | } |
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| 26 | |
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| 27 | |
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