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authorjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2005-09-26 05:28:27 +0000
committerjames <james@e7ae566f-a301-0410-adde-c780ea21d3b5>2005-09-26 05:28:27 +0000
commit6fbf66fad3367b24fd6743bcd50254902fd9c8d5 (patch)
tree9802876e3771744eead18917bb47ff6e90ac39f5 /circ_list.h
downloadopenvpn-6fbf66fad3367b24fd6743bcd50254902fd9c8d5.tar.xz
This is the start of the BETA21 branch.
It includes the --topology feature, and TAP-Win32 driver changes to allow non-admin access. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@580 e7ae566f-a301-0410-adde-c780ea21d3b5
Diffstat (limited to 'circ_list.h')
-rw-r--r--circ_list.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/circ_list.h b/circ_list.h
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index 0000000..3859199
--- /dev/null
+++ b/circ_list.h
@@ -0,0 +1,78 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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 (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef CIRC_LIST_H
+#define CIRC_LIST_H
+
+#include "basic.h"
+#include "integer.h"
+#include "error.h"
+
+#define CIRC_LIST(name, type) \
+struct name { \
+ int x_head; \
+ int x_size; \
+ int x_cap; \
+ int x_sizeof; \
+ type x_list[EMPTY_ARRAY_SIZE]; \
+}
+
+#define CIRC_LIST_PUSH(obj, item) \
+{ \
+ (obj)->x_head = modulo_add ((obj)->x_head, -1, (obj)->x_cap); \
+ (obj)->x_list[(obj)->x_head] = (item); \
+ (obj)->x_size = min_int ((obj)->x_size + 1, (obj)->x_cap); \
+}
+
+#define CIRC_LIST_SIZE(obj) \
+ ((obj)->x_size)
+
+#define CIRC_LIST_INDEX(obj, index) \
+ modulo_add ((obj)->x_head, \
+ index_verify ((index), (obj)->x_size, __FILE__, __LINE__), \
+ (obj)->x_cap)
+
+#define CIRC_LIST_ITEM(obj, index) \
+ ((obj)->x_list[CIRC_LIST_INDEX((obj), (index))])
+
+#define CIRC_LIST_RESET(obj) \
+{ \
+ (obj)->x_head = 0; \
+ (obj)->x_size = 0; \
+}
+
+#define CIRC_LIST_ALLOC(dest, list_type, size) \
+{ \
+ const int so = sizeof (list_type) + sizeof ((dest)->x_list[0]) * (size); \
+ (dest) = (list_type *) malloc (so); \
+ check_malloc_return (dest); \
+ memset ((dest), 0, so); \
+ (dest)->x_cap = size; \
+ (dest)->x_sizeof = so; \
+}
+
+#define CIRC_LIST_FREE(dest) \
+ free (dest)
+
+#endif