aboutsummaryrefslogtreecommitdiffstats
path: root/epan/tpg.c
diff options
context:
space:
mode:
authorLuis Ontanon <luis.ontanon@gmail.com>2005-09-27 20:48:48 +0000
committerLuis Ontanon <luis.ontanon@gmail.com>2005-09-27 20:48:48 +0000
commit72cbc6410b80e0ca8d8fc7fa5f7d49ea70c74398 (patch)
tree39da66825e2d2d6b506b9c604cde524df2b0451c /epan/tpg.c
parent9a66525b71ff30396b80804406affa14de450e55 (diff)
TPG TVB Parser Generator
Given a bnf-like grammar generate a set of helpers for a dissector It's not working yet, however I need this checkin as a cheeckpoint (I'll write the doc when it starts to be ready) svn path=/trunk/; revision=16021
Diffstat (limited to 'epan/tpg.c')
-rw-r--r--epan/tpg.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/epan/tpg.c b/epan/tpg.c
new file mode 100644
index 0000000000..746419b367
--- /dev/null
+++ b/epan/tpg.c
@@ -0,0 +1,89 @@
+/* tpg.c
+ * helper functions for TPG
+ *
+ * (c) 2005, Luis E. Garcia Ontanon <luis.ontanon@gmail.com>
+ *
+ * $Id:$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "tpg.h"
+#include <epan/emem.h>
+#include <epan/packet.h>
+
+void
+http_dissector_add(guint32 port, dissector_handle_t handle)
+{
+}
+
+
+extern guint32 tpg_ipv4(tvbparse_elem_t* e _U_) {
+ /* XXX TO DO */
+ return 0;
+}
+
+extern guint8* tpg_ipv6(tvbparse_elem_t* e _U_) {
+ /* XXX TO DO */
+ return NULL;
+}
+
+extern tpg_parser_data_t* tpg_start(proto_tree* root_tree,
+ tvbuff_t* tvb,
+ int offset,
+ int len,
+ void* private_data) {
+ tpg_parser_data_t* tpg = ep_alloc(sizeof(tpg_parser_data_t));
+ tpg->private_data = private_data;
+ tpg->tt = tvbparse_init(tvb,offset,len,tpg,NULL);
+
+ tpg->stack = ep_alloc(sizeof(tpg_stack_frame_t));
+ tpg->stack->tree = root_tree;
+ tpg->stack->down = NULL;
+
+ return tpg;
+}
+
+
+extern void tpg_push(tpg_parser_data_t* tpg, proto_item* item, gint ett) {
+ tpg_stack_frame_t* frame = ep_alloc(sizeof(tpg_stack_frame_t));
+
+ frame->tree = proto_item_add_subtree(item,ett);
+ frame->down = tpg->stack;
+ tpg->stack = frame;
+
+}
+
+
+tpg_stack_frame_t* tpg_pop(tpg_parser_data_t* tpg) {
+ tpg_stack_frame_t* frame = tpg->stack;
+
+ if (tpg->stack->down) {
+ tpg->stack = tpg->stack->down;
+ } else {
+ DISSECTOR_ASSERT( FALSE && "Error in the TPG infrastructure: trying to pop the end of the stack");
+ }
+
+ return frame;
+}