From d30dbda89737dd855d27611a8d6afecec03a4db4 Mon Sep 17 00:00:00 2001
From: Pasi Kallinen <paxed@alt.org>
Date: Sat, 15 Dec 2012 19:42:54 +0200
Subject: [PATCH] Virus: Fix dot command segfault

---
 virus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/virus.c b/virus.c
index f96c5d4..1613d4d 100644
--- a/virus.c
+++ b/virus.c
@@ -2647,7 +2647,7 @@ static Byte *char_insert(Byte * p, Byte c)  // insert the char c at 'p'
           p = text_hole_delete (p, p);  // shrink buffer 1 char
 #ifdef BB_FEATURE_VI_DOT_CMD
           // also rmove char from last_modifying_cmd
-          if (strlen((char *) last_modifying_cmd) > 0) {
+          if (last_modifying_cmd && (strlen((char *) last_modifying_cmd) > 0)) {
               Byte *q;
 
               q = last_modifying_cmd;
-- 
2.47.3