--- php-4.2.0/main/rfc1867.c	Tue Apr  2 01:29:19 2002
+++ php-4.2.0RC4/main/rfc1867.c	Mon Apr 22 23:54:06 2002
@@ -371,11 +371,12 @@
 	}
 	
 	entry = zend_llist_get_first(&header);
-	do {
+	while (entry) {
 		if (!strcasecmp(entry->key, key)) {
 			return entry->value;
 		}
-	} while ((entry = zend_llist_get_next(&header)));
+		entry = zend_llist_get_next(&header);
+	}
 	
 	return NULL;
 }