Symbol: bpf_set_wtout
sys/net/bpf.c
1003
error = bpf_set_wtout(d, *(int *)addr ? 0 : INFSLP);
sys/net/bpf.c
1016
error = bpf_set_wtout(d, INFSLP);
sys/net/bpf.c
730
return (bpf_set_wtout(d, nsec));