From 3625b3f37b23c0b5cafbb908be541aca41989dd7 Mon Sep 17 00:00:00 2001
From: Johan Danielsson <joda@pdc.kth.se>
Date: Wed, 14 Aug 2002 17:20:40 +0000
Subject: [PATCH] don't write to buf if len == 0

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11095 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/roken/strsep_copy.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/roken/strsep_copy.c b/lib/roken/strsep_copy.c
index df09f9cdc..ace41f688 100644
--- a/lib/roken/strsep_copy.c
+++ b/lib/roken/strsep_copy.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Kungliga Tekniska Högskolan
+ * Copyright (c) 2000, 2002 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden). 
  * All rights reserved. 
  *
@@ -53,8 +53,10 @@ strsep_copy(const char **stringp, const char *delim, char *buf, size_t len)
 	return -1;
     *stringp = *stringp + strcspn(*stringp, delim);
     l = min(len, *stringp - save);
-    memcpy(buf, save, l);
-    buf[l] = '\0';
+    if(len > 0) {
+	memcpy(buf, save, l);
+	buf[l] = '\0';
+    }
 
     l = *stringp - save;
     if(**stringp == '\0')