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FRET-LibAFL/fuzzers/forkserver/forkserver_capture_stdout/README.md
lazymio f901c2085d
Support capturing stdout/stderr for ForkserverExecutor and code clean (#3216) 
* Support capture stdout/stderr for ForkserverExecutor

Reduce code duplication for ForkserverExecutor and CommandExecutor

* use memfd_create from nix for macos and remove debug print

* resolve macos issue

* clippy

* fix macos again

* fix docs

* fix imports

* format code

* fix docs again

* fix sample

* fix another wrong import

* restore cargo.lock

* add an inner for target args

* fix and docs

* fix

* rename to ChildArgs and ChildArgsInner

* revert forkserver_simple

* allow debug child with observers

* fmt

* std marker

* fix

* move implementation to observers

* implement serde

* Add a forkserver_capture_stdout

* renaming

* fix

* fmt

* fix CommandExecutor

* add a test to check capture

* fix imports

* clippy

* fix sample

* update sample to make it closer to real usecase

* also CommandExecutor for sample

* format

* add forkserver_capture_stdout to CI

* fix doc

* accidentally remove

* fix non_std

* fix for windows

* remove useless lint

* remove spurious fuzzer

* fix for windows again

* fix imports

* fix doc sample

* fix docs

* fix sample

* fmt

* clippy

* clippy again

* fix msrv

* have cargo.lock for sample fuzzer

* avoid double read

* fix fsrv and cmd

* fix sample

* fix docs for windows

* fix typo

* clippy again

* fix exec

* typo

* clippy

* update

* fix nyx executor

* cliipy

* fmt again

* last clippy

* clippy
2025-05-13 16:08:27 +02:00

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Simple Forkserver Fuzzer to Capture Stdout

This is a simple example fuzzer to showcase how to capture stdout(stderr) from ForkserverExecutor.

Usage

You can build this example by cargo build --release.
This downloads AFLplusplus/AFLplusplus and compiles the example harness program in src/program.c with afl-cc

Run

After you build it you can run
cp ./target/release/forkserver_capture_stdout . to copy the fuzzer into this directory,
and you can run
taskset -c 1 ./forkserver_capture_stdout ./target/release/program ./corpus/ -t 1000 to run the fuzzer. taskset binds this process to a specific core to improve the throughput.