# AFL++: compile a program for fuzzing



Compile a program for fuzzing.



## 1. Run the example



[Download the AFL++ example](https://www.security.run/docs/examples/aflplusplus.zip). Extract it, install `httpx`, set your API URL and token, then run `python client.py`. The client uploads the included inputs, submits the command, and saves the result under `results/RUN_ID`.



## 2. Check the result



Download the compiled target. You can use it in a later AFL++ invocation.



Read the native exit code and cleanup status printed by the client. [Read results and save reports](https://www.security.run/docs/visibility.html) explains the returned files.



## 3. Use your own inputs



Edit `example.json` to change the command arguments, requested outputs or deadline. Replace the files under `inputs/` with your own data, keeping the staged paths aligned with the command. The client creates the artifact IDs for you; illustrative IDs shown here must not be copied into a live request.



### Files used by this example



- `target.c`



The example uses supplied files or the disposable execution environment. Nothing from the environment carries into a later run unless you request and reuse its output.



Qualified version: `4.21c-5`. Commands: `afl-fuzz`, `afl-showmap`, `afl-tmin`, `afl-cmin`, `afl-cc`, `afl-clang-fast`, `afl-clang-fast++`, `afl-analyze`.



- Upload or compile a Linux ARM64 target; set executable=true on uploaded binaries. Instrumented mode needs a compatible AFL++ compiler runtime.



Inspect `GET /v1/tools/aflplusplus` for the current installed version and readiness. The published snapshot has 3 functional case(s), plus timeout and cancellation checks. These examples demonstrate the native path; other flags and inputs are supported within the tool’s runtime limits.

## Command submitted by the example

```json
{
  "tool": "aflplusplus",
  "timeout_seconds": 90,
  "invocation": {
    "args": [
      "-O0",
      "target.c",
      "-o",
      "target"
    ],
    "outputs": [
      "target"
    ],
    "success_exit_codes": [
      0
    ],
    "executable": "afl-cc",
    "files": [
      {
        "path": "target.c",
        "artifact_id": "artifact_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
        "executable": false
      }
    ]
  }
}
```