From: Yuntai Kyong <yuntai.kyong@gmail.com>
Date: Tue, 8 May 2018 12:57:20 +0000 (+0900)
Subject: add fuzz target for messages
X-Git-Tag: v0.0.12~407^2
X-Git-Url: http://git.bitcoin.ninja/?a=commitdiff_plain;h=913ea887fea16be5f272ff8467a0458c086e7ff1;p=rust-lightning

add fuzz target for messages
[[bin]] section for each new target in Cargo.toml
glob chanbes in travis-fuzz.sh
---

diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index fc40a342b..521e93d3b 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -41,3 +41,60 @@ path = "fuzz_targets/channel_target.rs"
 [[bin]]
 name = "full_stack_target"
 path = "fuzz_targets/full_stack_target.rs"
+
+# message fuzz targets
+[[bin]]
+name = "msg_accept_channel_target"
+path = "fuzz_targets/msg_targets/msg_accept_channel_target.rs"
+
+[[bin]]
+name = "msg_closing_signed_target"
+path = "fuzz_targets/msg_targets/msg_closing_signed_target.rs"
+
+[[bin]]
+name = "msg_commitment_signed_target"
+path = "fuzz_targets/msg_targets/msg_commitment_signed_target.rs"
+
+[[bin]]
+name = "msg_funding_created_target"
+path = "fuzz_targets/msg_targets/msg_funding_created_target.rs"
+
+[[bin]]
+name = "msg_funding_locked_target"
+path = "fuzz_targets/msg_targets/msg_funding_locked_target.rs"
+
+[[bin]]
+name = "msg_funding_signed_target"
+path = "fuzz_targets/msg_targets/msg_funding_signed_target.rs"
+
+[[bin]]
+name = "msg_open_channel_target"
+path = "fuzz_targets/msg_targets/msg_open_channel_target.rs"
+
+[[bin]]
+name = "msg_revoke_and_ack_target"
+path = "fuzz_targets/msg_targets/msg_revoke_and_ack_target.rs"
+
+[[bin]]
+name = "msg_shutdown_target"
+path = "fuzz_targets/msg_targets/msg_shutdown_target.rs"
+
+[[bin]]
+name = "msg_update_add_htlc_target"
+path = "fuzz_targets/msg_targets/msg_update_add_htlc_target.rs"
+
+[[bin]]
+name = "msg_update_fail_malformed_htlc_target"
+path = "fuzz_targets/msg_targets/msg_update_fail_malformed_htlc_target.rs"
+
+[[bin]]
+name = "msg_update_fee_target"
+path = "fuzz_targets/msg_targets/msg_update_fee_target.rs"
+
+[[bin]]
+name = "msg_update_fulfill_htlc_target"
+path = "fuzz_targets/msg_targets/msg_update_fulfill_htlc_target.rs"
+
+[[bin]]
+name = "msg_update_fail_htlc_target"
+path = "fuzz_targets/msg_targets/msg_update_fail_htlc_target.rs"
diff --git a/fuzz/fuzz_targets/msg_targets/msg_accept_channel_target.rs b/fuzz/fuzz_targets/msg_targets/msg_accept_channel_target.rs
new file mode 100644
index 000000000..dd44e16a1
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_accept_channel_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::AcceptChannel, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_closing_signed_target.rs b/fuzz/fuzz_targets/msg_targets/msg_closing_signed_target.rs
new file mode 100644
index 000000000..4e990e921
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_closing_signed_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::ClosingSigned, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_commitment_signed_target.rs b/fuzz/fuzz_targets/msg_targets/msg_commitment_signed_target.rs
new file mode 100644
index 000000000..7e0ff45de
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_commitment_signed_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::CommitmentSigned, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_funding_created_target.rs b/fuzz/fuzz_targets/msg_targets/msg_funding_created_target.rs
new file mode 100644
index 000000000..ae66f5d35
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_funding_created_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::FundingCreated, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_funding_locked_target.rs b/fuzz/fuzz_targets/msg_targets/msg_funding_locked_target.rs
new file mode 100644
index 000000000..d3570b7ef
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_funding_locked_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::FundingLocked, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_funding_signed_target.rs b/fuzz/fuzz_targets/msg_targets/msg_funding_signed_target.rs
new file mode 100644
index 000000000..3c4793825
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_funding_signed_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::FundingSigned, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_open_channel_target.rs b/fuzz/fuzz_targets/msg_targets/msg_open_channel_target.rs
new file mode 100644
index 000000000..f33988b12
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_open_channel_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::OpenChannel, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_revoke_and_ack_target.rs b/fuzz/fuzz_targets/msg_targets/msg_revoke_and_ack_target.rs
new file mode 100644
index 000000000..495a9ca45
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_revoke_and_ack_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::RevokeAndACK, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_shutdown_target.rs b/fuzz/fuzz_targets/msg_targets/msg_shutdown_target.rs
new file mode 100644
index 000000000..7eabf8095
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_shutdown_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::Shutdown, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_update_add_htlc_target.rs b/fuzz/fuzz_targets/msg_targets/msg_update_add_htlc_target.rs
new file mode 100644
index 000000000..674e5bfdc
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_update_add_htlc_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::UpdateAddHTLC, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_update_fail_htlc_target.rs b/fuzz/fuzz_targets/msg_targets/msg_update_fail_htlc_target.rs
new file mode 100644
index 000000000..0c4a9f10d
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_update_fail_htlc_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::UpdateFailHTLC, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_update_fail_malformed_htlc_target.rs b/fuzz/fuzz_targets/msg_targets/msg_update_fail_malformed_htlc_target.rs
new file mode 100644
index 000000000..bf64a1ee8
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_update_fail_malformed_htlc_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::UpdateFailMalformedHTLC, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_update_fee_target.rs b/fuzz/fuzz_targets/msg_targets/msg_update_fee_target.rs
new file mode 100644
index 000000000..817a44d5e
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_update_fee_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::UpdateFee, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/msg_update_fulfill_htlc_target.rs b/fuzz/fuzz_targets/msg_targets/msg_update_fulfill_htlc_target.rs
new file mode 100644
index 000000000..e3747e475
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/msg_update_fulfill_htlc_target.rs
@@ -0,0 +1,49 @@
+extern crate lightning;
+
+use lightning::ln::msgs;
+use lightning::util::reset_rng_state;
+
+use lightning::ln::msgs::{MsgEncodable, MsgDecodable};
+
+mod utils;
+use utils::slice_to_be16;
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+	reset_rng_state();
+	let mut read_pos = 0;
+	loop {
+		test_msg!(msgs::UpdateFulfillHTLC, data, read_pos);
+	}
+}
+
+#[cfg(feature = "afl")]
+extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	afl::read_stdio_bytes(|data| {
+		do_test(&data);
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			do_test(data);
+		});
+	}
+}
+
+#[cfg(test)]
+mod tests {
+	use utils::extend_vec_from_hex;
+	#[test]
+	fn duplicate_crash() {
+		let mut a = Vec::new();
+		extend_vec_from_hex("00", &mut a);
+		super::do_test(&a);
+	}
+}
diff --git a/fuzz/fuzz_targets/msg_targets/utils.rs b/fuzz/fuzz_targets/msg_targets/utils.rs
new file mode 100644
index 000000000..cb4de5eb9
--- /dev/null
+++ b/fuzz/fuzz_targets/msg_targets/utils.rs
@@ -0,0 +1,69 @@
+#![macro_use]
+
+#[allow(dead_code)]
+#[inline]
+pub fn slice_to_be16(v: &[u8]) -> u16 {
+	  ((v[0] as u16) << 8*1) |
+			  ((v[1] as u16) << 8*0)
+}
+
+#[macro_export]
+macro_rules! test_msg {
+	($MsgType: path, $data: ident, $read_pos: ident) => {
+		{
+			let len = slice_to_be16(get_slice!($data, $read_pos, 2));
+			let raw = get_slice!($data, $read_pos, len);
+			let cb = decode_msg!($MsgType, raw).encode();
+			assert_eq!(&raw[..cb.len()], &cb[..]);
+		}
+	}
+}
+
+#[macro_export]
+macro_rules! decode_msg {
+	($MsgType: path, $data: expr) => {
+		match <($MsgType)>::decode($data) {
+			Ok(msg) => msg,
+			Err(e) => match e {
+				msgs::DecodeError::UnknownRealmByte => return,
+				msgs::DecodeError::BadPublicKey => return,
+				msgs::DecodeError::BadSignature => return,
+				msgs::DecodeError::ExtraAddressesPerType => return,
+				msgs::DecodeError::WrongLength => return,
+			}
+		}
+	}
+}
+
+#[macro_export]
+macro_rules! get_slice {
+	($data: ident, $read_pos: ident, $len: expr) => {
+		{
+			let slice_len = $len as usize;
+			if $data.len() < $read_pos + slice_len {
+				return;
+			}
+			$read_pos += slice_len;
+			&$data[$read_pos - slice_len..$read_pos]
+		}
+	}
+}
+
+#[allow(dead_code)]
+#[cfg(test)]
+pub fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
+	let mut b = 0;
+	for (idx, c) in hex.as_bytes().iter().enumerate() {
+		b <<= 4;
+		match *c {
+			b'A'...b'F' => b |= c - b'A' + 10,
+			b'a'...b'f' => b |= c - b'a' + 10,
+			b'0'...b'9' => b |= c - b'0',
+			_ => panic!("Bad hex"),
+		}
+		if (idx & 1) == 1 {
+			out.push(b);
+			b = 0;
+		}
+	}
+}
diff --git a/fuzz/travis-fuzz.sh b/fuzz/travis-fuzz.sh
index 5129799ae..a60d11855 100755
--- a/fuzz/travis-fuzz.sh
+++ b/fuzz/travis-fuzz.sh
@@ -1,8 +1,8 @@
 #!/bin/bash
 set -e
 cargo install --force honggfuzz
-for TARGET in fuzz_targets/*; do
-    FILENAME=$(basename $TARGET)
+for TARGET in fuzz_targets/*.rs fuzz_targets/msg_targets/*_target.rs; do
+	FILENAME=$(basename $TARGET)
 	FILE="${FILENAME%.*}"
 	HFUZZ_BUILD_ARGS="--features honggfuzz_fuzz" HFUZZ_RUN_ARGS="-N1000000 --exit_upon_crash -v" cargo hfuzz run $FILE
 	if [ -f hfuzz_workspace/$FILE/HONGGFUZZ.REPORT.TXT ]; then