How to extract the value from tcp packet(recived in xml data) ?

[JhonAlex]

I want code in C. Please let me know wesites for xml-rpc document with examples in C?

getReference (xmlDocPtr doc, xmlNodePtr cur) {
xmlChar *uri;
cur = cur->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *)"reference"))) {
uri = xmlGetProp(cur, "uri");
printf("uri: %s\n", uri);
xmlFree(uri);
}
cur = cur->next;
}
return;
}

I got value from server in tcp packet(its in xml data). Let me know my mistake and Its get a value. I dnt know xml. Im a beginner.
Thanks,
Jhon.