buffer: implement buffer_appendf to append formatted content

1 files changed, 3 insertions, 2 deletions

diff --git a/buffer.h b/buffer.h
index b095572..6c6bc82 100644
--- a/buffer.h
+++ b/buffer.h
@@ -42,9 +42,10 @@ bool buffer_append0(Buffer*, const char *data);
 bool buffer_prepend(Buffer*, const void *data, size_t len);
 /* prepend NUL-terminated data */
 bool buffer_prepend0(Buffer*, const char *data);
-
+/* set formatted buffer content, ensures NUL termination on success */
 bool buffer_printf(Buffer*, const char *fmt, ...);
-bool buffer_vprintf(Buffer*, const char *fmt, va_list);
+/* append formatted buffer content, ensures NUL termination on success */
+bool buffer_appendf(Buffer*, const char *fmt, ...);
 /* return length of a buffer without trailing NUL byte */
 size_t buffer_length0(Buffer*);
 /* return length of a buffer including possible NUL byte */