static void free_node_t(struct node_t *p)
{
if(!p) return; /* just to make sure*/
if(p->op == O_ID || p->op == O_NUM) {
/* p->left is char *, or int * (malloced)*/
free(p->left);
p->left = NULL;
}
else {
if(p->left) free_node_t(p->left);
if(p->right) free_node_t(p->right);
}
free(p);
}
/*
* judge if bw is OK in 'rulestr'
* return value: 0 ... no, it's not OK.
* non 0 ... yes, it is. use this rule.
*/
int asmrule_match(char *rulestr,int bw)
{
int ret = 0;
struct node_t *p;
struct c_desc *cd;
if(rulestr[0] != '#') { /* asmrule always start with #*/
return 1; /* if not, it's no description rule --> always match */
}
cd = new_c_desc(rulestr + 1);
p = cond_expr(cd);
/*tree_debug(p); debugging*/
insert_id_value(p,"OldPNMPlayer",0); /* we don't care about old player */
insert_id_value(p,"Bandwidth",bw);
ret = eval_tree(p);
free_node_t(p);
free_c_desc(cd);
return ret;
}
void free_names() {
free_node_t(names);
names = NULL;
}
