Function dns_lookup

lib_acl/samples/dns_req/main.cpp:48–104

}

static void dns_lookup(char *domains, const char *dns_ips, int dns_port)
{
	ACL_AIO  *aio     = acl_aio_create(ACL_EVENT_SELECT);
	int       timeout = 5;
	ACL_DNS  *dns     = acl_dns_create(aio, timeout);
	ACL_ARGV *argv    = acl_argv_split(domains, ",:;|");
	ACL_ARGV *ip_argv = acl_argv_split(dns_ips, ",:;|");
	ACL_ITER  iter;

	/* ��DNS���湦�� */
	acl_dns_open_cache(dns, 100);

	/* ����DNS��������ַ */
	acl_foreach(iter, ip_argv) {
		char *ip = (char*) iter.data;
		printf("add one dns, ip=%s, port=%d\r\n", ip, dns_port);
		acl_dns_add_dns(dns, ip, dns_port, 24);
	}

	acl_argv_free(ip_argv);

	/* ����У��DNS��ַ��Ч�Ա��λ */
	acl_dns_check_dns_ip(dns);

	/* ��ѯ��������Ӧ��IP��ַ */
	acl_foreach(iter, argv) {
		char *domain = (char*) iter.data;
		printf(">>>call dns lookup for: %s\n", domain);
		acl_dns_lookup(dns, domain, dns_lookup_callback, domain);
	}

	/* �����¼�ѭ���� */
	while (__nresult < iter.size) {
		acl_aio_loop(aio);
	}

	printf("---------------------------------------------------\n");
	printf(">>>DNS cache result search\n\n");
	/* ��ѯ������� */
	__nresult = 0;

	/* ͨ�������ѯ��������Ӧ��IP��ַ */
	acl_foreach(iter, argv) {
		char *domain = (char*) iter.data;
		printf(">>>call dns lookup from cache for: %s\n", domain);
		acl_dns_lookup(dns, domain, dns_lookup_callback, domain);
	}

	while (__nresult < iter.size) {
		acl_aio_loop(aio);
	}

	acl_argv_free(argv);
	acl_dns_close(dns);
	acl_aio_check(aio);
	acl_aio_free(aio);
}