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/* packet-media.c
* Routines for displaying an undissected media type (default case),
* based on the generic "data" dissector.
*
* (C) Olivier Biot, 2004
*
* $Id$
*
* Refer to the AUTHORS file or the AUTHORS section in the man page
* for contacting the author(s) of this file.
*
* 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 <glib.h>
#include <epan/packet.h>
/* proto_media cannot be static because it's referenced in the
* print routines
*/
int proto_media = -1;
static gint ett_media = -1;
static heur_dissector_list_t heur_subdissector_list;
static void
dissect_media(tvbuff_t *tvb, packet_info *pinfo , proto_tree *tree)
{
int bytes;
proto_item *ti;
proto_tree *media_tree = 0;
if (dissector_try_heuristic(heur_subdissector_list, tvb, pinfo, tree)) {
return;
}
/* Add media type to the INFO column if it is visible */
if (check_col(pinfo->cinfo, COL_INFO)) {
col_append_fstr(pinfo->cinfo, COL_INFO, " (%s)", pinfo->match_string);
}
if (tree) {
if ( (bytes = tvb_length_remaining(tvb, 0)) > 0 )
{
ti = proto_tree_add_item(tree, proto_media, tvb, 0, -1, FALSE);
media_tree = proto_item_add_subtree(ti, ett_media);
if (pinfo->private_data) {
/* The media type has parameters */
proto_tree_add_text(media_tree, tvb, 0, bytes,
"Media Type: %s; %s (%d byte%s)",
pinfo->match_string, (char *)pinfo->private_data,
bytes, plurality(bytes, "", "s"));
} else {
/* The media type has no parameters */
proto_tree_add_text(media_tree, tvb, 0, bytes,
"Media Type: %s (%d byte%s)",
pinfo->match_string ? pinfo->match_string : "",
bytes, plurality(bytes, "", "s"));
}
}
}
}
void
proto_register_media(void)
{
static gint *ett[] = {
&ett_media
};
proto_media = proto_register_protocol (
"Media Type", /* name */
"Media", /* short name */
"media" /* abbrev */
);
register_dissector("media", dissect_media, proto_media);
register_heur_dissector_list("media", &heur_subdissector_list);
proto_register_subtree_array(ett, array_length(ett));
/*
* "Media" is used to dissect something whose normal dissector
* is disabled, so it cannot itself be disabled.
*/
proto_set_cant_toggle(proto_media);
}
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