1 files changed, 21 insertions, 0 deletions
diff --git a/src/extern.h b/src/extern.h
new file mode 100644
index 0000000..b7abc6e
--- /dev/null
+++ b/src/extern.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2020, yzrh <yzrh@tuta.io>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "cnki.h"
+
+/* cnki.c */
+int cnki_create(cnki_t **param);
+void cnki_destroy(cnki_t **param);
+int cnki_info(cnki_t **param);
+
+/* cnki_caj.c */
+int cnki_caj(cnki_t **param);
+
+/* cnki_nh.c */
+int cnki_nh(cnki_t **param);
+
+/* cnki_kdh.c */
+int cnki_kdh(cnki_t **param);