Function get_route_set

modules/rr/loose.c:1154–1214

#define MAX_RR_HDRS 64
str* get_route_set(struct sip_msg *msg,int *nr_routes)
{
	static str uris[MAX_RR_HDRS];
	struct hdr_field *it;
	rr_t *p;
	int n = 0;
	int routing_type;

	if (msg == NULL || msg->route == NULL)
	{
		LM_ERR("null sip msg or no route headers\n");
		return 0;
	}

	routing_type = ctx_routing_get();
	if (routing_type == ROUTING_SS || routing_type == ROUTING_LS)
	{
		/* must manually insert RURI, as it was part
		 * of the route deleted to make up for strict routing */
		uris[n++] = msg->new_uri;
	}

	it = msg->route;
	while (it != NULL)
	{
		if (parse_rr(it) < 0)
		{
			LM_ERR("failed to parse RR\n");
			return 0;
		}

		p = (rr_t*)it->parsed;
		while (p)
		{
			if (p->deleted == 0)
			{
				uris[n++] = p->nameaddr.uri;
				if(n==MAX_RR_HDRS)
				{
					LM_ERR("too many RR\n");
					return 0;
				}
			}
			else
				LM_DBG("Route [%.*s] has been deleted\n",p->nameaddr.uri.len,
						p->nameaddr.uri.s);
			p = p->next;
		}
		it = it->sibling;
	}


	/* if SS - remove last route */
	if (routing_type == ROUTING_SS)
		n--;

	if (nr_routes)
		*nr_routes = n;