fuzz

Author: shortishly

tansu-sans-io/CLAUDE.md

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+target/
+corpus/
+artifacts/
+coverage/

tansu-sans-io/fuzz/.gitignore

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+[package]
+name = "tansu-sans-io-fuzz"
+version = "0.0.0"
+publish = false
+edition = "2024"
+
+[package.metadata]
+cargo-fuzz = true
+
+[workspace]
+
+[dependencies]
+libfuzzer-sys = "0.4"
+tansu-sans-io = { path = ".." }
+bytes = "1"
+
+[[bin]]
+name = "fuzz_request_decode"
+path = "fuzz_targets/fuzz_request_decode.rs"
+
+[[bin]]
+name = "fuzz_response_decode"
+path = "fuzz_targets/fuzz_response_decode.rs"
+
+[[bin]]
+name = "fuzz_deflated_batch"
+path = "fuzz_targets/fuzz_deflated_batch.rs"
+
+[[bin]]
+name = "fuzz_varint"
+path = "fuzz_targets/fuzz_varint.rs"

tansu-sans-io/fuzz/Cargo.toml

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+#![no_main]
+use bytes::Bytes;
+use libfuzzer_sys::fuzz_target;
+use tansu_sans_io::record::deflated;
+
+fuzz_target!(|data: &[u8]| {
+    let _ = deflated::Batch::try_from(Bytes::copy_from_slice(data));
+});

tansu-sans-io/fuzz/fuzz_targets/fuzz_deflated_batch.rs

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+#![no_main]
+use bytes::Bytes;
+use libfuzzer_sys::fuzz_target;
+use tansu_sans_io::Frame;
+
+fuzz_target!(|data: &[u8]| {
+    let _ = Frame::request_from_bytes(Bytes::copy_from_slice(data));
+});

tansu-sans-io/fuzz/fuzz_targets/fuzz_request_decode.rs

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+#![no_main]
+use bytes::Bytes;
+use libfuzzer_sys::fuzz_target;
+use tansu_sans_io::Frame;
+
+fuzz_target!(|data: &[u8]| {
+    if data.len() < 4 {
+        return;
+    }
+    let api_key = i16::from_be_bytes([data[0], data[1]]);
+    let api_version = i16::from_be_bytes([data[2], data[3]]);
+    let payload = Bytes::copy_from_slice(&data[4..]);
+    let _ = Frame::response_from_bytes(payload, api_key, api_version);
+});

tansu-sans-io/fuzz/fuzz_targets/fuzz_response_decode.rs

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+#![no_main]
+use bytes::Bytes;
+use libfuzzer_sys::fuzz_target;
+use tansu_sans_io::Decode;
+use tansu_sans_io::primitive::varint::{LongVarInt, VarInt};
+
+fuzz_target!(|data: &[u8]| {
+    let mut buf = Bytes::copy_from_slice(data);
+    let _ = VarInt::decode(&mut buf);
+
+    let mut buf = Bytes::copy_from_slice(data);
+    let _ = LongVarInt::decode(&mut buf);
+});