add_rc_conf
add_rc_conf("sshd=YES\n");
add_rc_conf("dhcpcd=YES\n");
add_rc_conf("wscons=YES\n");
add_rc_conf("wscons=YES\n");
add_rc_conf("%s=%s\n", varname, setting);
void add_rc_conf(const char *, ...) __printflike(1, 2);
add_rc_conf("hostname=%s\n", recombine_host_domain());
add_rc_conf("defaultroute=\"%s\"\n", net_defroute);
add_rc_conf("dhcpcd=YES\n");
add_rc_conf("dhcpcd_flags=\"-qM %s\"\n", net_dev);
add_rc_conf("wpa_supplicant=YES\n");
add_rc_conf("wpa_supplicant_flags=\"-B -s -i %s -D bsd -c /etc/wpa_supplicant.conf\"\n", net_dev);
add_rc_conf("random_file=/etc/entropy-file\n");