expand_rule
expand_rule(&r, j, NULL, NULL, NULL, h,
expand_rule(&r, NULL, NULL,
expand_rule(&r, $4, $5.host, $7, $8.src_os,
void expand_rule(struct pf_rule *, struct node_if *, struct node_host *,
expand_rule(&r, $2, $9 == NULL ? NULL : $9->host, $4,
expand_rule(&r, $5, NULL, $7, $8.src_os,
expand_rule(&r, $3, NULL, $5, $6.src_os,
expand_rule(&r, $3, NULL, $5, $6.src_os,
expand_rule(&r, $4, NULL, $6, $7.src_os,