forked from osmocom/wireshark
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
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/* crc10-tvb.c
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* CRC-10 tvb routines
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/tvbuff.h>
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#include <wsutil/crc10.h>
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#include <epan/crc10-tvb.h>
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/* update the data block's CRC-10 remainder one byte at a time */
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guint16
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update_crc10_by_bytes_tvb(guint16 crc10, tvbuff_t *tvb, int offset, int len)
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{
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const guint8 *buf;
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tvb_ensure_bytes_exist(tvb, offset, len); /* len == -1 not allowed */
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buf = tvb_get_ptr(tvb, offset, len);
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return update_crc10_by_bytes(crc10, buf, len);
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}
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