X-Git-Url: http://git.madism.org/?a=blobdiff_plain;f=lib-lib%2Fbuffer.h;h=6d62f2a4363af567135926384d8a1132337ef877;hb=0afd88891b641bb01d18f0e39890f5e460a0c02f;hp=9e919b7ebe790d44a90c186d0a3502b557001bb9;hpb=c1a6303fea322f1de432897524b25fa238896225;p=apps%2Fmadmutt.git

diff --git a/lib-lib/buffer.h b/lib-lib/buffer.h
index 9e919b7..6d62f2a 100644
--- a/lib-lib/buffer.h
+++ b/lib-lib/buffer.h
@@ -87,10 +87,18 @@ static inline void buffer_addch(buffer_t *buf, int c) {
 }
 
 static inline void buffer_reset(buffer_t *buf) {
-    buf->len = 0;
-    buf->data[0] = '\0';
+    if (buf->len) {
+        buf->len = 0;
+        buf->data[0] = '\0';
+    }
 }
 
+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 *******/