Add config

conf.h

@@ -0,0 +1,25 @@
+#ifndef _DNS_CONF
+
+#define DNS_MAX_SERVERS 32
+#define DNS_MAX_IPLEN 64
+
+typedef enum dns_conf_server_type {
+	DNS_CONF_TYPE_UDP,
+	DNS_CONF_TYPE_TCP,
+	DNS_CONF_TYPE_HTTP,
+} dns_conf_server_type_t;
+
+struct dns_servers {
+	char server[DNS_MAX_IPLEN];
+	unsigned short port;
+	dns_conf_server_type_t type;
+};
+
+extern int dns_conf_port;
+extern int dns_conf_cachesize;
+extern struct dns_servers dns_conf_servers[DNS_MAX_SERVERS];
+extern int dns_conf_server_num;
+
+int load_conf(const char *file);
+
+#endif // !_DNS_CONF