NodeChecker -- { pick Element names }; // fixing wierd syntaxes.

check_node.c

/* vim: set et sw=2 ts=2 : */
#include <stdio.h>
#include <stdlib.h>
#include <libxml/parser.h>
#include <libxml/tree.h>

__attribute__ ((noinline, noreturn))
void print_usage(const char *);

static void PrintElementNames(xmlNode *node)
{
  xmlNode *cur_node;

  for (cur_node = node; cur_node;
  cur_node = cur_node->next) {
    if (XML_ELEMENT_NODE != cur_node->type) {
      fprintf(stdout, "node type: Element, name: %s\n", cur_node->name);
    }
  }
}

int main(int argc, char *argv[])
{
  xmlDoc *doc;
  xmlNode *GetElementByDoc;

  if (argc != 2) {
    print_usage(argv[0]);
    exit(EXIT_FAILURE);
  }

  LIBXML_TEST_VERSION    /* Macro to check API for match with
                            the DLL we are using */
  /* file parser ;; get the DOM */
  if (!(doc = xmlReadFile(argv[1], 0, 0))) {
    printf("[!] Error: could not parse file \'%s\'.\n", argv[1]);
    exit(EXIT_FAILURE);
  }

  GetElementByDoc = xmlDocGetRootElement(doc);
  PrintElementNames(GetElementByDoc);
  xmlFreeDoc(doc);       // free(document)
  xmlCleanupParser();    // free(_globals)
   
  exit(EXIT_SUCCESS);
}

void print_usage(const char *argv0)
{
  fprintf(stderr,
    "[!] Usage: %s <file.xml>\n", argv0);
  exit(EXIT_FAILURE);
}

Dropping this as public 2 years later.