From 0fa7f352fc954b79f2d734a5c1c276df5dd1ffd3 Mon Sep 17 00:00:00 2001
From: Petter Rodhelind <petter.rodhelind@gmail.com>
Date: Sat, 18 Mar 2017 18:10:02 +0100
Subject: Fix key down buffer overflow bug at EOF

---
 src/cmd/acme/text.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/cmd/acme/text.c')

diff --git a/src/cmd/acme/text.c b/src/cmd/acme/text.c
index 21810860..be32ad76 100644
--- a/src/cmd/acme/text.c
+++ b/src/cmd/acme/text.c
@@ -682,13 +682,13 @@ texttype(Text *t, Rune r)
 		return;
 	case Kdown:
 		typecommit(t);
+		q0 = t->q0;
 		nnb = 0;
-		if(t->q0>0 && textreadc(t, t->q0-1)!='\n')
+		if(q0>0 && textreadc(t, q0-1)!='\n')
 			nnb = textbswidth(t, 0x15);
-		q0 = t->q0;
 		while(q0<t->file->b.nc && textreadc(t, q0)!='\n')
 			q0++;
-		if (q0+1 != t->file->b.nc)
+		if (q0+1 < t->file->b.nc)
 			q0++;
 		while(q0<t->file->b.nc && textreadc(t, q0)!='\n' && nnb--)
 			q0++;
-- 
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