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Add AFL_FORK_SERVER_KILL_SIGNAL environment variable.

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The AFL_FORK_SERVER_KILL_SIGNAL variable allows to configure the signal
used to kill the fork server on termination.
This commit is contained in:
Nils Bars
2022-10-21 12:13:43 +02:00
parent f84ea69660
commit 7512316b46
13 changed files with 58 additions and 45 deletions
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7
src/afl-tmin.c
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@ -881,6 +881,8 @@ static void usage(u8 *argv0) {
"AFL_CRASH_EXITCODE: optional child exit code to be interpreted as crash\n"
"AFL_FORKSRV_INIT_TMOUT: time spent waiting for forkserver during startup (in milliseconds)\n"
"AFL_KILL_SIGNAL: Signal ID delivered to child processes on timeout, etc. (default: SIGKILL)\n"
"AFL_FORK_SERVER_KILL_SIGNAL: Signal delivered to fork server processes on termination\n"
" (default: SIGTERM)\n"
"AFL_MAP_SIZE: the shared memory size for that target. must be >= the size\n"
" the target was compiled for\n"
"AFL_PRELOAD: LD_PRELOAD / DYLD_INSERT_LIBRARIES settings for target\n"
@ -1196,7 +1198,10 @@ int main(int argc, char **argv_orig, char **envp) {
}
fsrv->child_kill_signal =
parse_afl_kill_signal_env(getenv("AFL_KILL_SIGNAL"), SIGKILL);
parse_afl_kill_signal(getenv("AFL_KILL_SIGNAL"), SIGKILL);
fsrv->fsrv_kill_signal =
parse_afl_kill_signal(getenv("AFL_FORK_SERVER_KILL_SIGNAL"), SIGTERM);
if (getenv("AFL_CRASH_EXITCODE")) {