child cleanup
MODIFY
src/afl-forkserver.c
src/afl-forkserver.c
@@ -240,6 +240,17 @@ static void afl_fauxsrv_execv(afl_forkserver_t *fsrv, char **argv) {
if (!child_pid) { // New child
+ close(fsrv->out_dir_fd);
+ close(fsrv->dev_null_fd);
+ close(fsrv->dev_urandom_fd);
+
+ if (fsrv->plot_file != NULL) {
+
+ fclose(fsrv->plot_file);
+ fsrv->plot_file = NULL;
+
+ }
+
signal(SIGCHLD, old_sigchld_handler);
// FORKSRV_FD is for communication with AFL, we don't need it in the
// child.
@@ -360,12 +371,10 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
if (!fsrv->fsrv_pid) {
/* CHILD PROCESS */
-
struct rlimit r;
/* Umpf. On OpenBSD, the default fd limit for root users is set to
soft 128. Let's try to fix that... */
-
if (!getrlimit(RLIMIT_NOFILE, &r) && r.rlim_cur < FORKSRV_FD + 2) {
r.rlim_cur = FORKSRV_FD + 2;
@@ -432,7 +441,12 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
close(fsrv->dev_null_fd);
close(fsrv->dev_urandom_fd);
- if (fsrv->plot_file != NULL) { fclose(fsrv->plot_file); }
+ if (fsrv->plot_file != NULL) {
+
+ fclose(fsrv->plot_file);
+ fsrv->plot_file = NULL;
+
+ }
/* This should improve performance a bit, since it stops the linker from
doing extra work post-fork(). */

child cleanup