NAME¶

afl-cmin

SYNOPSIS¶

afl-cmin [ options ] -- /path/to/target_app [ ... ]

OPTIONS¶

Required parameters:


  -i dir        - input directory with starting corpus


  -o dir        - output directory for minimized files
Execution control settings:


  -T tasks      - how many parallel tasks to run (default: 1, all=nproc)


  -f file       - location read by the fuzzed program (default: stdin)


  -m megs       - memory limit for child process ( MB)


  -t msec       - run time limit for child process (default: 5000)


  -O            - use binary-only instrumentation (FRIDA mode)


  -Q            - use binary-only instrumentation (QEMU mode)


  -U            - use unicorn-based instrumentation (unicorn mode)


  -X            - use Nyx mode
Minimization settings:


  -A            - allow crashes and timeouts (not recommended)


  -C            - keep crashing inputs, reject everything else


  -e            - solve for edge coverage only, ignore hit counts
For additional tips, please consult README.md
Environment variables used:
AFL_CRASH_EXITCODE: optional child exit code to be interpreted as crash
AFL_FORKSRV_INIT_TMOUT: time the fuzzer waits for the forkserver to come up
AFL_KEEP_TRACES: leave the temporary <out_dir>/.traces directory
AFL_KILL_SIGNAL: Signal delivered to child processes on timeout (default: SIGKILL)
AFL_FORK_SERVER_KILL_SIGNAL: Signal delivered to fork server processes on


   termination (default: SIGTERM). If this is not set and AFL_KILL_SIGNAL is


   set, this will be set to the same value as AFL_KILL_SIGNAL.
AFL_NO_FORKSRV: run target via execve instead of using the forkserver
AFL_CMIN_ALLOW_ANY: write tuples for crashing inputs also
AFL_PATH: path for the afl-showmap binary if not found anywhere in PATH
AFL_PRINT_FILENAMES: If set, the filename currently processed will be printed to stdout
AFL_SKIP_BIN_CHECK: skip afl instrumentation checks for target binary

AUTHOR¶

AFL++ was written by Michal "lcamtuf" Zalewski and is maintained by Marc "van Hauser" Heuse <mh@mh-sec.de>, Dominik Maier <domenukk@gmail.com>, Andrea Fioraldi <andreafioraldi@gmail.com> and Heiko "hexcoder-" Eissfeldt <heiko.eissfeldt@hexco.de> The homepage of AFL++ is: https://github.com/AFLplusplus/AFLplusplus

LICENSE¶

Apache License Version 2.0, January 2004