From: Karel Zak <kzak@redhat.com>
Date: Fri, 18 Jun 2021 14:56:52 +0000 (+0200)
Subject: wall: add __format__ attribute
X-Git-Tag: v2.38-rc1~425
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0c753d8d6b6c4342f4ede5e8aba1491d9119d010;p=thirdparty%2Futil-linux.git

wall: add __format__ attribute

Reported-by: Jan Pazdziora <jpazdziora@redhat.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/term-utils/wall.c b/term-utils/wall.c
index 97d9a56b5c..fb283d3bfd 100644
--- a/term-utils/wall.c
+++ b/term-utils/wall.c
@@ -296,7 +296,8 @@ static void buf_puts(struct buffer *bs, const char *s)
 	bs->used += len;
 }
 
-static void buf_printf(struct buffer *bs, const char *fmt, ...)
+static void __attribute__((__format__ (__printf__, 2, 3)))
+	buf_printf(struct buffer *bs, const char *fmt, ...)
 {
 	int rc;
 	va_list ap;