forked from osmocom/wireshark
![Gilbert Ramirez](/assets/img/avatar_default.png)
usages of tvb_get_ptr(). packet-ieee80211.c still has one bad usage, in which it *does* modify the tvbuff's data. svn path=/trunk/; revision=3128
113 lines
1.9 KiB
C
113 lines
1.9 KiB
C
/*
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* $Id: ftype-tvbuff.c,v 1.5 2001/03/13 21:34:28 gram Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 2001 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <ftypes-int.h>
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#include "gdebug.h"
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static void
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value_new(fvalue_t *fv)
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{
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fv->value.tvb = NULL;
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}
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static void
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value_set(fvalue_t *fv, gpointer value, gboolean already_copied)
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{
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g_assert(already_copied);
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fv->value.tvb = value;
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}
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static gpointer
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value_get(fvalue_t *fv)
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{
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return fv->value.tvb;
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}
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static guint
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len(fvalue_t *fv)
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{
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if (fv->value.tvb)
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return tvb_length(fv->value.tvb);
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else
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return 0;
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}
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static void
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slice(fvalue_t *fv, GByteArray *bytes, guint offset, guint length)
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{
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const guint8* data;
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if (fv->value.tvb) {
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TRY {
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data = tvb_get_ptr(fv->value.tvb, offset, length);
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g_byte_array_append(bytes, data, length);
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}
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CATCH_ALL {
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/* nothing */
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}
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ENDTRY;
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}
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}
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void
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ftype_register_tvbuff(void)
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{
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static ftype_t protocol_type = {
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"FT_PROTOCOL",
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"protocol",
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0,
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value_new,
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NULL,
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NULL,
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value_set,
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NULL,
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NULL,
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value_get,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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len,
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slice,
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};
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ftype_register(FT_PROTOCOL, &protocol_type);
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}
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