Fuzzing infrastructure for low level code used by vis

This directory contains some simple command line applications which expose core library interfaces through the standard I/O streams. They are intended to be used as test drivers for fuzzers like AFL.

Run one of the make afl-fuzz-* targets to start fuzzing a specific instrumented binary using afl-fuzz(1). By default it will try to resume a previous fuzzing session, before starting a new one if that fails.

The following files are used:

• $APP-fuzzer.c application exposing a simple text interface
• fuzzer.h common code used among different fuzzing drivers
• ./input/$APP/ intial test input, one file per test
• ./dictionaries/$APP.dict a dictionary with valid syntax tokens
• ./results/$APP/ the fuzzing results are stored here

See the AFL documentation for further information.

In the future we might also use libFuzzer for further fuzzing.

Quick start example:

$ make afl-fuzz-text