From c9923324e92f0fff68ee2912fb1f0d28262bea1d Mon Sep 17 00:00:00 2001
From: Daniel Veillard <veillard@src.gnome.org>
Date: Tue, 24 Apr 2007 18:12:06 +0000
Subject: [PATCH] Richard Jones reported xmlBufferAdd (buf, "", -1), fixing it
 Daniel

* tree.c: Richard Jones reported xmlBufferAdd (buf, "", -1), fixing it
Daniel

svn path=/trunk/; revision=3605
---
 ChangeLog | 4 ++++
 tree.c    | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index 6874d1cb..8556a6c5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Apr 24 20:15:14 CEST 2007 Daniel Veillard <daniel@veillard.com>
+
+	* tree.c: Richard Jones reported xmlBufferAdd (buf, "", -1), fixing it
+
 Tue Apr 24 10:59:28 CEST 2007 Daniel Veillard <daniel@veillard.com>
 
 	* uri.c: fix xmlURIUnescapeString comments which was confusing
diff --git a/tree.c b/tree.c
index ffbcabd3..fe579219 100644
--- a/tree.c
+++ b/tree.c
@@ -6968,7 +6968,8 @@ xmlBufferAdd(xmlBufferPtr buf, const xmlChar *str, int len) {
     if (len < 0)
         len = xmlStrlen(str);
 
-    if (len <= 0) return -1;
+    if (len < 0) return -1;
+    if (len == 0) return 0;
 
     needSize = buf->use + len + 2;
     if (needSize > buf->size){