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24 lines
1 KiB
Markdown
24 lines
1 KiB
Markdown
= Fuzzing
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The tests in this directory can be operated in three modes:
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* non-fuzzing - the test just runs over all input located in `<test_name>.in/`
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directory by compiling with mock main.c that walks through the directory and
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runs `LLVMFuzzerTestOneInput()` over the input files
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* AFL - `./configure --with-fuzzing=afl` will either feed the stdin to
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`LLVMFuzzerTestOneInput()` or run the `__AFL_LOOP(10000)` if compiled with
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`afl-clang-fast`
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* LibFuzzer - `./configure --with-fuzzing=libfuzzer` will disable `main.c`
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completely and it uses the standard LibFuzzer mechanims to feed
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`LLVMFuzzerTestOneInput` with the fuzzer
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== Test Cases
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Each test case should be called descriptively and the executable target must
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link `testcase.o` and `main.o` and the `test_case.c` must have a function
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`LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)`.
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== Adding more fuzzers
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To add a different fuzzer, `main.c` must be modified to include `main()` function
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for a specific fuzzer (or no function as is case with LibFuzzer).
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