用libxml解析xml文件出错，求解

lieye_leaves

接触XML不多，请帮忙看下：

xml文件如下：
<?xml version="1.0"?>
<parameter>
<command name="test">
<testip ip="192.168.1.1" port="80"/>
<testip ip="192.168.1.2" port="90"/>
</command>
</parameter>

程序如下：
#include <stdio.h>
#include <string.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
void main()
{
xmlDocPtr doc;
xmlNodePtr curNode;
xmlChar *szKey;
xmlChar *name;

doc = xmlReadFile("/home/libxml/test.xml", "utf-8", XML_PARSE_RECOVER);
curNode = xmlDocGetRootElement(doc);
printf("parameter=%s\n", curNode->name);
curNode = curNode->xmlChildrenNode;
printf("command=%s\n", curNode->name);
curNode = curNode->xmlChildrenNode;
printf("name = %s\n",curNode->name);
}

输出如下
./test
parameter=parameter
command=text         //该text是从哪来的？
Segmentation fault (core dumped)