$NetBSD$

Avoid possible NULL pointer dereference, e.g. when just parsing `</a>'.

--- webdump.c
+++ webdump.c
@@ -672,7 +672,8 @@ xmltagend(XMLParser *p, const char *t, size_t tl, int isshort)
 	}
 
 	/* if the current closing tag matches the current open tag */
-	if (!strcasecmp(nodes[curnode].tag.name, t)) {
+	if (nodes[curnode].tag.name &&
+	    !strcasecmp(nodes[curnode].tag.name, t)) {
 		tagend(&nodes[curnode]);
 		if (curnode)
 			curnode--;
@@ -680,7 +681,8 @@ xmltagend(XMLParser *p, const char *t, size_t tl, int isshort)
 		/* ... else lookup the first matching start tag. This is also
 		   for handling optional closing tags */
 		for (i = curnode; i > 0; i--) {
-			if (!strcasecmp(nodes[i].tag.name, t)) {
+			if (nodes[curnode].tag.name &&
+			    !strcasecmp(nodes[i].tag.name, t)) {
 				tagend(&nodes[i]);
 				curnode = i;
 				break;