[src/trunk]: src/lib/libedit check for negative return of ct_visual_char (Kam...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/30d1865ae716
branches:  trunk
changeset: 771297:30d1865ae716
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Nov 18 20:25:48 2011 +0000

description:
check for negative return of ct_visual_char (Kamil Dudka)

diffstat:

 lib/libedit/terminal.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r b4cd9b914d27 -r 30d1865ae716 lib/libedit/terminal.c
--- a/lib/libedit/terminal.c    Fri Nov 18 20:24:21 2011 +0000
+++ b/lib/libedit/terminal.c    Fri Nov 18 20:25:48 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: terminal.c,v 1.10 2011/10/04 15:27:04 christos Exp $   */
+/*     $NetBSD: terminal.c,v 1.11 2011/11/18 20:25:48 christos Exp $   */
 
 /*-
  * Copyright (c) 1992, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)term.c     8.2 (Berkeley) 4/30/95";
 #else
-__RCSID("$NetBSD: terminal.c,v 1.10 2011/10/04 15:27:04 christos Exp $");
+__RCSID("$NetBSD: terminal.c,v 1.11 2011/11/18 20:25:48 christos Exp $");
 #endif
 #endif /* not lint && not SCCSID */
 
@@ -1262,6 +1262,8 @@
 {
        Char visbuf[VISUAL_WIDTH_MAX +1];
        ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c);
+       if (vcnt < 0)
+               vcnt = 0;
        visbuf[vcnt] = '\0';
        terminal_overwrite(el, visbuf, (size_t)vcnt);
        terminal__flush(el);