afl-untracer completed

This commit is contained in:
van Hauser
2020-04-30 17:59:59 +02:00
parent a37eca9df5
commit efa9df24c2
10 changed files with 106 additions and 75 deletions

View File

@ -790,8 +790,6 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
s32 res;
u32 exec_ms;
int status = 0;
/* After this memset, fsrv->trace_bits[] are effectively volatile, so we
must prevent any earlier operations from venturing into that
territory. */
@ -821,7 +819,7 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
if (fsrv->child_pid <= 0) { FATAL("Fork server is misbehaving (OOM?)"); }
exec_ms = read_timed(fsrv->fsrv_st_fd, &status, 4, timeout, stop_soon_p);
exec_ms = read_timed(fsrv->fsrv_st_fd, &fsrv->child_status, 4, timeout, stop_soon_p);
if (exec_ms > timeout) {
@ -830,7 +828,7 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
kill(fsrv->child_pid, SIGKILL);
fsrv->last_run_timed_out = 1;
if (read(fsrv->fsrv_st_fd, &status, 4) < 4) { exec_ms = 0; }
if (read(fsrv->fsrv_st_fd, &fsrv->child_status, 4) < 4) { exec_ms = 0; }
}
@ -862,7 +860,7 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
}
if (!WIFSTOPPED(status)) { fsrv->child_pid = 0; }
if (!WIFSTOPPED(fsrv->child_status)) { fsrv->child_pid = 0; }
fsrv->total_execs++;
@ -874,9 +872,9 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
/* Report outcome to caller. */
if (WIFSIGNALED(status) && !*stop_soon_p) {
if (WIFSIGNALED(fsrv->child_status) && !*stop_soon_p) {
fsrv->last_kill_signal = WTERMSIG(status);
fsrv->last_kill_signal = WTERMSIG(fsrv->child_status);
if (fsrv->last_run_timed_out && fsrv->last_kill_signal == SIGKILL) {
@ -891,7 +889,7 @@ fsrv_run_result_t afl_fsrv_run_target(afl_forkserver_t *fsrv, u32 timeout,
/* A somewhat nasty hack for MSAN, which doesn't support abort_on_error and
must use a special exit code. */
if (fsrv->uses_asan && WEXITSTATUS(status) == MSAN_ERROR) {
if (fsrv->uses_asan && WEXITSTATUS(fsrv->child_status) == MSAN_ERROR) {
fsrv->last_kill_signal = 0;
return FSRV_RUN_CRASH;