From 5fda2735a58171565a03088a985d69027e2f6a19 Mon Sep 17 00:00:00 2001
From: Renaud Fivet <renaud.fivet@gmail.com>
Date: Fri, 16 Jan 2015 17:55:23 +0800
Subject: [PATCH] Do not use a temporary buffer to prompt user in mlyesno, thus
 avoiding problem with '%' or overflow.

---
 input.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/input.c b/input.c
index 15a0997..6e6c45d 100644
--- a/input.c
+++ b/input.c
@@ -61,13 +61,10 @@ static const int quotec = 0x11 ;	/* quote char during mlreply()	 */
 int mlyesno( const char *prompt)
 {
     char c;         /* input character */
-    char buf[ NSTRING] ;	/* prompt to user */
 
     for (;;) {
-        /* build and prompt the user */
-        strcpy(buf, prompt);
-        strcat(buf, " (y/n)? ");
-        mlwrite(buf);
+        /* prompt the user */
+		mlwrite( "%s (y/n)? ", prompt) ;
 
         /* get the response */
         c = tgetc();