54 lines
1.2 KiB
Rust
54 lines
1.2 KiB
Rust
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#![no_main]
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#[macro_use]
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extern crate libfuzzer_sys;
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extern crate wabt;
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extern crate wasmi;
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extern crate tempdir;
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use std::fs::File;
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use std::io::Write;
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use std::process::{Command, Stdio};
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fn run_spec(data: &[u8]) -> Result<(), ()> {
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let temp_dir = tempdir::TempDir::new("spec").unwrap();
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let mut seed_path = temp_dir.path().to_path_buf();
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seed_path.push("test.wasm");
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{
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let mut seedfile =
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File::create(&seed_path).expect("open temporary file for writing to store fuzzer input");
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seedfile.write_all(data).expect(
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"write fuzzer input to temporary file",
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);
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seedfile.flush().expect(
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"flush fuzzer input to temporary file before starting wasm-opt",
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);
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}
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let exit_status = Command::new("wasm")
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.arg("-d")
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.arg(&seed_path)
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.stdout(Stdio::null())
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.stderr(Stdio::null())
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.status()
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.expect("failed to execute `wasm`");
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if exit_status.success() {
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Ok(())
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} else {
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Err(())
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}
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}
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fn run_wasmi(data: &[u8]) -> Result<(), ()> {
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let _ = wasmi::Module::from_buffer(data).map_err(|_| ())?;
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Ok(())
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}
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fuzz_target!(|data: &[u8]| {
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let wasmi_result = run_wasmi(data);
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let wasm_result = run_spec(data);
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assert_eq!(wasmi_result.is_ok(), wasm_result.is_ok());
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});
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