From d7ceb78e2e141368e1814e5363e92eee8527ce00 Mon Sep 17 00:00:00 2001
From: Em Turner <em.turner@tutanota.com>
Date: Thu, 28 Jun 2018 18:51:56 +0000
Subject: [PATCH] Initial fuzzing setup
---
fuzz/Cargo.lock | 610 ++++++++++++++++++++++++++++++++
fuzz/Cargo.toml | 22 ++
fuzz/fuzz_targets/parser.rs | 11 +
fuzz/run_fuzzer.ion | 3 +
src/lib/parser/mod.rs | 9 +
src/lib/parser/statement/mod.rs | 3 +
6 files changed, 658 insertions(+)
create mode 100644 fuzz/Cargo.lock
create mode 100644 fuzz/Cargo.toml
create mode 100644 fuzz/fuzz_targets/parser.rs
create mode 100644 fuzz/run_fuzzer.ion
diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
new file mode 100644
index 00000000..82d8bbfc
--- /dev/null
+++ b/fuzz/Cargo.lock
@@ -0,0 +1,610 @@
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diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
new file mode 100644
index 00000000..5664c756
--- /dev/null
+++ b/fuzz/Cargo.toml
@@ -0,0 +1,22 @@
+
+[package]
+name = "ion-shell-fuzz"
+version = "0.0.1"
+authors = ["Automatically generated"]
+publish = false
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies.ion-shell]
+path = ".."
+[dependencies.libfuzzer-sys]
+git = "https://github.com/rust-fuzz/libfuzzer-sys.git"
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "parser"
+path = "fuzz_targets/parser.rs"
diff --git a/fuzz/fuzz_targets/parser.rs b/fuzz/fuzz_targets/parser.rs
new file mode 100644
index 00000000..0af1ebe7
--- /dev/null
+++ b/fuzz/fuzz_targets/parser.rs
@@ -0,0 +1,11 @@
+#![no_main]
+#[macro_use] extern crate libfuzzer_sys;
+extern crate ion_shell;
+
+use ion_shell::parser::fuzzing::*;
+
+fuzz_target!(|data: &[u8]| {
+ if let Ok(s) = std::str::from_utf8(data) {
+ let _ = statement_parse(&s);
+ }
+});
diff --git a/fuzz/run_fuzzer.ion b/fuzz/run_fuzzer.ion
new file mode 100644
index 00000000..9ee38409
--- /dev/null
+++ b/fuzz/run_fuzzer.ion
@@ -0,0 +1,3 @@
+cargo install cargo-fuzz
+
+cargo fuzz run parser -- -timeout=2 -only_ascii=1 -print_coverage=1 -prefer_small=1
diff --git a/src/lib/parser/mod.rs b/src/lib/parser/mod.rs
index 936decd0..9dcd0efe 100644
--- a/src/lib/parser/mod.rs
+++ b/src/lib/parser/mod.rs
@@ -10,3 +10,12 @@ pub(crate) use self::{
loops::ForExpression, shell_expand::{expand_string, Expander, Select},
statement::{parse_and_validate, StatementSplitter},
};
+
+#[cfg(fuzzing)]
+pub mod fuzzing {
+ use super::*;
+
+ pub fn statement_parse(data: &str) {
+ statement::parse::parse(data);
+ }
+}
diff --git a/src/lib/parser/statement/mod.rs b/src/lib/parser/statement/mod.rs
index 7973d27c..f306575a 100644
--- a/src/lib/parser/statement/mod.rs
+++ b/src/lib/parser/statement/mod.rs
@@ -1,6 +1,9 @@
mod case;
mod functions;
+#[cfg(not(fuzzing))]
mod parse;
+#[cfg(fuzzing)]
+pub mod parse;
mod splitter;
pub(crate) use self::{
--
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