--- a/buffer.h	Thu Mar 21 23:28:59 2019 +0800
+++ b/buffer.h	Fri Jun 26 21:07:34 2020 +0800
@@ -58,6 +58,7 @@
 unsigned char* buf_getwriteptr(const buffer* buf, unsigned int len);
 char* buf_getstring(buffer* buf, unsigned int *retlen);
 buffer * buf_getstringbuf(buffer *buf);
+buffer * buf_getbuf(buffer *buf);
 void buf_eatstring(buffer *buf);
 void buf_putint(buffer* buf, unsigned int val);
 void buf_putstring(buffer* buf, const char* str, unsigned int len);