epan/crc6-tvb.c

   1 /* crc6-tvb.c
   2  * CRC-6 tvb routines
   3  *
   4  * Wireshark - Network traffic analyzer
   5  * By Gerald Combs <gerald@wireshark.org>
   6  * Copyright 1998 Gerald Combs
   7  *
   8  * SPDX-License-Identifier: GPL-2.0-or-later
   9  */
  10
  11 #include "config.h"
  12
  13 #include <glib.h>
  14 #include <epan/tvbuff.h>
  15 #include <wsutil/crc6.h>
  16 #include <epan/crc6-tvb.h>
  17
  18 uint16_t
  19 crc6_compute_tvb(tvbuff_t *tvb, int len)
  20 {
  21     const uint8_t *buf;
  22
  23     tvb_ensure_bytes_exist(tvb, 0, len);  /* len == -1 not allowed */
  24     buf = tvb_get_ptr(tvb, 0, len);
  25
  26     return crc6_0X6F(0, buf, len);
  27 }
  28
  29 /*
  30  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  31  *
  32  * Local variables:
  33  * c-basic-offset: 4
  34  * tab-width: 8
  35  * indent-tabs-mode: nil
  36  * End:
  37  *
  38  * vi: set shiftwidth=4 tabstop=8 expandtab:
  39  * :indentSize=4:tabSize=8:noTabs=true:
  40  */