diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/afl-forkserver.c | 6 | ||||
| -rw-r--r-- | src/afl-fuzz-state.c | 7 | ||||
| -rw-r--r-- | src/afl-fuzz.c | 17 |
3 files changed, 28 insertions, 2 deletions
diff --git a/src/afl-forkserver.c b/src/afl-forkserver.c index 9d9e81cd..51734579 100644 --- a/src/afl-forkserver.c +++ b/src/afl-forkserver.c @@ -79,6 +79,7 @@ void afl_fsrv_init(afl_forkserver_t *fsrv) { fsrv->use_stdin = 1; fsrv->no_unlink = 0; fsrv->exec_tmout = EXEC_TIMEOUT; + fsrv->init_tmout = EXEC_TIMEOUT * FORK_WAIT_MULT; fsrv->mem_limit = MEM_LIMIT; fsrv->out_file = NULL; @@ -101,6 +102,7 @@ void afl_fsrv_init_dup(afl_forkserver_t *fsrv_to, afl_forkserver_t *from) { fsrv_to->out_fd = from->out_fd; fsrv_to->dev_null_fd = from->dev_null_fd; fsrv_to->exec_tmout = from->exec_tmout; + fsrv_to->init_tmout = from->init_tmout; fsrv_to->mem_limit = from->mem_limit; fsrv_to->map_size = from->map_size; fsrv_to->support_shmem_fuzz = from->support_shmem_fuzz; @@ -519,13 +521,13 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv, u32 time_ms = read_s32_timed(fsrv->fsrv_st_fd, &status, - fsrv->exec_tmout * FORK_WAIT_MULT, stop_soon_p); + fsrv->init_tmout, stop_soon_p); if (!time_ms) { kill(fsrv->fsrv_pid, SIGKILL); - } else if (time_ms > fsrv->exec_tmout * FORK_WAIT_MULT) { + } else if (time_ms > fsrv->init_tmout) { fsrv->last_run_timed_out = 1; kill(fsrv->fsrv_pid, SIGKILL); diff --git a/src/afl-fuzz-state.c b/src/afl-fuzz-state.c index 74798584..a8db8578 100644 --- a/src/afl-fuzz-state.c +++ b/src/afl-fuzz-state.c @@ -356,6 +356,13 @@ void read_afl_environment(afl_state_t *afl, char **envp) { afl->afl_env.afl_max_det_extras = (u8 *)get_afl_env(afl_environment_variables[i]); + } else if (!strncmp(env, "AFL_FORKSRV_INIT_TMOUT", + + afl_environment_variable_len)) { + + afl->afl_env.afl_forksrv_init_tmout = + (u8 *) get_afl_env(afl_environment_variables[i]); + } } else { diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c index 664cc076..ae5cb087 100644 --- a/src/afl-fuzz.c +++ b/src/afl-fuzz.c @@ -173,6 +173,7 @@ static void usage(u8 *argv0, int more_help) { "AFL_FAST_CAL: limit the calibration stage to three cycles for speedup\n" "AFL_FORCE_UI: force showing the status screen (for virtual consoles)\n" "AFL_HANG_TMOUT: override timeout value (in milliseconds)\n" + "AFL_FORKSRV_INIT_TMOUT: time spent waiting for forkserver during startup (in milliseconds)\n" "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: don't warn about core dump handlers\n" "AFL_IMPORT_FIRST: sync and import test cases from other fuzzer instances first\n" "AFL_MAP_SIZE: the shared memory size for that target. must be >= the size\n" @@ -969,6 +970,22 @@ int main(int argc, char **argv_orig, char **envp) { } + if (afl->afl_env.afl_forksrv_init_tmout) { + + afl->fsrv.init_tmout = atoi(afl->afl_env.afl_forksrv_init_tmout); + if (!afl->fsrv.init_tmout) { + + FATAL("Invalid value of AFL_FORKSRV_INIT_TMOUT"); + + } + + } else { + + afl->fsrv.init_tmout = afl->fsrv.exec_tmout * FORK_WAIT_MULT; + + } + + if (afl->non_instrumented_mode == 2 && afl->no_forkserver) { FATAL("AFL_DUMB_FORKSRV and AFL_NO_FORKSRV are mutually exclusive"); |