add printf-like primitive to the buffers.

[apps/madmutt.git] / lib-lib / buffer.h

diff --git a/lib-lib/buffer.h b/lib-lib/buffer.h
index dd9d936..6d62f2a 100644 (file)
--- a/lib-lib/buffer.h
+++ b/lib-lib/buffer.h
@@ -93,6 +93,12 @@ static inline void buffer_reset(buffer_t *buf) {
     }
 }
 
+ssize_t buffer_addvf(buffer_t *buf, const char *fmt, va_list)
+    __attribute__((format(printf, 2, 0)));
+
+ssize_t buffer_addf(buffer_t *buf, const char *fmt, ...)
+    __attribute__((format(printf, 2, 3)));
+
 
 /****** LEGACY BUFFERS *******/