Generalized list and hash handling functions

[tinc] / lib / hash.c

diff --git a/lib/hash.c b/lib/hash.c
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+/*
+    hash.c -- Handle hash datastructures
+    Copyright (C) 2000 Ivo Timmermans <itimmermans@bigfoot.com>
+                  2000 Guus Sliepen <guus@sliepen.warande.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: hash.c,v 1.1 2000/10/20 16:44:32 zarq Exp $
+*/
+
+#include "config.h"
+
+/*
+  hash_delete
+  delete one element, indicated by key, from hash
+*/
+int hash_delete(hash_t hash, char *key)
+{
+}
+
+/*
+  hash_insert_maybe
+  insert an element into the hash, unless an element with the
+  same key already exists.
+*/
+int hash_insert_maybe(hash_t hash, void *data, char *key)
+{
+  if(hash_retrieve(hash, key))
+    {
+    }
+}
+
+/*
+  hash_insert_or_update
+  
+  If an element indicated by key exists in the hash, update the
+  associated pointer.  Otherwise, insert this pointer as a new
+  element.
+*/
+int hash_insert_or_update(hash_t hash, void *data, char *key)
+{
+  
+}
+