From: H. Peter Anvin <hpa@zytor.com>
Date: Fri, 14 Aug 2009 05:31:13 +0000 (-0700)
Subject: menu: fix Ctrl-W (word erase) when editing a command line
X-Git-Tag: syslinux-3.83-pre7~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=89564000aceb909fd38893681d82a2647f6b1bc4;p=platform%2Fupstream%2Fsyslinux.git

menu: fix Ctrl-W (word erase) when editing a command line

The Ctrl-W (word erase) key was broken: it would think the command
line got longer, not shorter, resulting in havoc.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---

diff --git a/com32/menu/menumain.c b/com32/menu/menumain.c
index 82f0018..5b568fe 100644
--- a/com32/menu/menumain.c
+++ b/com32/menu/menumain.c
@@ -527,7 +527,7 @@ static const char *edit_cmdline(const char *input, int top)
 
 		memmove(cmdline + cursor, cmdline + prevcursor,
 			len - prevcursor + 1);
-		len -= (cursor - prevcursor);
+		len -= (prevcursor - cursor);
 		redraw = 1;
 	    }
 	    break;