support set smartdns as dnsmasq upstream server

src/conf.c

@@ -26,7 +26,7 @@ int dns_conf_log_level = TLOG_ERROR;
 char dns_conf_log_file[DNS_MAX_PATH];
 int dns_conf_log_size = 1024 * 1024;
 int dns_conf_log_num = 8;
-int dns_conf_audit_enable;
+int dns_conf_audit_enable = 0;
 char dns_conf_audit_file[DNS_MAX_PATH];
 int dns_conf_audit_size = 1024 * 1024;
 int dns_conf_audit_num = 2;

src/dns_server.c

@@ -929,6 +929,10 @@ static int _dns_server_process_ptr(struct dns_request *request, struct dns_packe
 		}
 	}
 
+	if (strstr(request->domain, "0.0.0.0") != NULL) {
+		found = 1;
+	}
+
 	if (found == 0) {
 		goto errout;
 	}