From 34b47abda7085804832aa0434726c30379d38ca7 Mon Sep 17 00:00:00 2001
From: James Clark <jjc@jclark.com>
Date: Sat, 27 Jun 1998 02:12:47 +0000
Subject: [PATCH] Avoid realloc(NULL, n)

---
 expat/xmlparse/xmlparse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/expat/xmlparse/xmlparse.c b/expat/xmlparse/xmlparse.c
index 81273c3f..520509a2 100755
--- a/expat/xmlparse/xmlparse.c
+++ b/expat/xmlparse/xmlparse.c
@@ -550,7 +550,7 @@ int XML_Parse(XML_Parser parser, const char *s, int len, int isFinal)
     if (nLeftOver) {
       if (buffer == 0 || nLeftOver > bufferLim - buffer) {
 	/* FIXME avoid integer overflow */
-	buffer = realloc(buffer, len * 2);
+	buffer = buffer == 0 ? malloc(len * 2) : realloc(buffer, len * 2);
 	if (!buffer) {
 	  errorCode = XML_ERROR_NO_MEMORY;
 	  eventPtr = eventEndPtr = 0;