This commit contains the following changes:
- Call `waitpid()` on the child and the fork server when terminating the
fuzzer; thus, we do not end up with zombies.
- Rename `fsrv.kill_signal` to `fsrv.child_kill_signal`, since the
documentation states that the signal is used to terminate the *child*.
- Use SIGTERM instead of fsrv.(child)_kill_signal, thus the fork server
can always reap the child.
* FASAN Support
* Fix handling of Address Sanitizer DSO
* Changes to identification of Address Sanitizer DSO
Co-authored-by: Your Name <you@example.com>
* Adding AFL_KILL_SIGNAL environment variable
Controlling the kill signal used to end forked processes.
* Checking validity of AFL_KILL_SIGNAL env variable
This commit also sets a valid value in the environment to avoid
duplicating code in at_exit(). Changing data type of
fsrv->kill_signal to u8 to match last_kill_signal.
* Adding afl_kill_signal to AFL (environment) state
This commit simply introduces a struct member for future use. The
env variable is not used from the afl struct but from fsrv, where
its validity is checked, resulting in a FATAL in case of errors.
* Addition of AFL_FORKSRV_INIT_TMOUT env var
This commit introduces a new environment variable which allows to
specify the timespan AFL should wait for initial contact with the
forkserver.
This is useful for fuzz-targets requiring a rather long setup time
before the actual fuzzing can be started (e.g., unicorn).
* add .swp files to .gitignore
* Inherit init_tmout in afl_fsrv_init_dup
Without this patch, the forkserver would spawn with a timeout of 0 in
cmplog mode, leading to an immediate crash.
Additionally, this commit removes a spurious whitespace.
* Initialize afl->fsrv.init_tmout in afl_fsrv_init
Not all afl-components will need the new AFL_FORKSRV_INIT_TMOUT
environment variable. Hence, it's initialized to the safe "default"
value from before in afl_fsrv_init now.
