fixed 2 bugs pointed in #116448 Daniel

* debugXML.c xpath.c: fixed 2 bugs pointed in #116448
Daniel
diff --git a/ChangeLog b/ChangeLog
index 3b5b734..6729580 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Sun Jul  6 19:56:18 CEST 2003 Daniel Veillard <daniel@veillard.com>
+
+	* debugXML.c xpath.c: fixed 2 bugs pointed in #116448
+
 Sun Jul  6 19:34:17 CEST 2003 Daniel Veillard <daniel@veillard.com>
 
 	* xinclude.c: fixed bug #116095 removing the error message when
diff --git a/debugXML.c b/debugXML.c
index 8d2f8e7..6109711 100644
--- a/debugXML.c
+++ b/debugXML.c
@@ -2104,7 +2104,7 @@
     while (1) {
         if (ctxt->node == (xmlNodePtr) ctxt->doc)
             snprintf(prompt, sizeof(prompt), "%s > ", "/");
-        else if (ctxt->node->name)
+        else if ((ctxt->node != NULL) && (ctxt->node->name))
             snprintf(prompt, sizeof(prompt), "%s > ", ctxt->node->name);
         else
             snprintf(prompt, sizeof(prompt), "? > ");
@@ -2329,6 +2329,13 @@
                             if (list->nodesetval != NULL) {
 				if (list->nodesetval->nodeNr == 1) {
 				    ctxt->node = list->nodesetval->nodeTab[0];
+				    if ((ctxt->node != NULL) &&
+				        (ctxt->node->type ==
+					 XML_NAMESPACE_DECL)) {
+					xmlGenericError(xmlGenericErrorContext,
+						    "cannot cd to namespace\n");
+					ctxt->node = NULL;
+				    }
 				} else
 				    xmlGenericError(xmlGenericErrorContext,
 						    "%s is a %d Node Set\n",
diff --git a/xpath.c b/xpath.c
index e6e3e1e..92d68de 100644
--- a/xpath.c
+++ b/xpath.c
@@ -5942,6 +5942,8 @@
     xmlAttrPtr attr;
     xmlNodePtr elem = NULL;
 
+    if (ids == NULL) return(NULL);
+
     ret = xmlXPathNodeSetCreate(NULL);
 
     while (IS_BLANK(*cur)) cur++;