Ignore xml comment when parsing response (libxml2)

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XML

parsing

Hi..

What I am trying to do here is -
1. Hit a server and receive an XML response.
2. Parse the XML response and store the values of the xml tags in some variables.

I am doing it as – (if “cur” is my root node)

cur1 = cur->children->next;
tagValue = (char*)cur1->children->content;

This gives the value “xyz” in the variable “tagValue” if following is the XML received from the server :

<root>
<child>xyz</child>
</root>

My problem here is since the response is dependent on the input send it is random, it may or may not have comment nodes at places.

If for some input I get a response as -

<root>
<!--This is a sample response-->
<child>xyz</child>
</root>

My code fails. I am clueless what to do.

[edit]
I am using the following code snippet -

xmlParserCtxtPtr ptrCtxt; /* the parser context */
 xmlDocPtr ptrDoc; /* the resulting document tree */
 xmlNodePtr ptrCurNode ;
 char* ptrTagname = NULL;
    /* create a parser context */
    ptrCtxt = xmlNewParserCtxt();
     /* parse the file, activating the DTD validation option */
     ptrDoc = xmlCtxtReadFile(ptrCtxt, ptrsFileName, NULL, XML_PARSE_RECOVER);

     /* check if validation suceeded */
     if(ptrCtxt->valid != 0)
     {
         ptrCurNode = xmlDocGetRootElement(ptrDoc);
      while(ptrCurNode->children->next != NULL)
      {
            ptrTagname = (char*)ptrCurNode->children->next->name;

            if(strcmp(ptrTagname,"Version")== 0)
            {
            msptrVersion = (char*)ptrCurNode->children->next->children->content;
        }

        else if(strcmp(ptrTagname,"Url) == 0)
            {
                        msptrserverURL = (char*)ptrCurNode->children->next->children->content;
            }
        ptrCurNode->children->next = ptrCurNode->children->next->next->next;
    }
   }

This works fine if no comment nodes are present as
ptrCurNode->children->next->children->content; will have some values

<version>1.2

But in case of comment nodes, It gives me segmentation fault while accessing

ptrCurNode->children->next->children->content; as it is pointing to a comment node and
children->content doesn’t points to any value.
[/edit]