In this book, we'll make use of American Fuzzy Lop, a best-of-breed fuzzer commonly used in other systems languages. AFL is an external tool that takes a corpus of inputs, an executable that reads inputs from STDIN, and mutates the corpus with a variety of heuristics to find crashing inputs. Our aim is to seek out crash bugs in naive HashMap, this implies that we're going to need some kind of program to run our HashMap in. In fact, if you'll recall back to the project's Cargo.toml, we already had the infrastructure for such in place:
[[bin]] name = "naive_interpreter" doc = false
The source for naive_interpreter is a little goofy looking but otherwise uneventful:
extern crate naive_hashmap; use std::io; use ...
