Directory structure

fuzzers/: Sources for the fuzzing harnesses.
corpora/: Contains the fuzzing corpora and assorted tools. The corpora are filed under a directory with the same name as the fuzzing harness. Each of those directories also contains the following:
- in/: Contains the actual corpus test cases.
- tools/: Any tools useful for that particular harness. A good example would be a binary which generates seed test cases.