/usr/include/gnuradio/digital/crc32.h is in gnuradio-dev 3.7.9.1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /* -*- c++ -*- */
/*
* Copyright 2005,2011,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_DIGITAL_CRC32_H
#define INCLUDED_DIGITAL_CRC32_H
#include <gnuradio/digital/api.h>
#include <string>
#include <gnuradio/types.h>
namespace gr {
namespace digital {
/*!
* \brief update running CRC-32
* \ingroup packet_operators_blk
*
* \details
* Update a running CRC with the bytes buf[0..len-1] The CRC
* should be initialized to all 1's, and the transmitted value is
* the 1's complement of the final running CRC. The resulting CRC
* should be transmitted in big endian order.
*/
DIGITAL_API unsigned int
update_crc32(unsigned int crc, const unsigned char *buf, size_t len);
DIGITAL_API unsigned int
update_crc32(unsigned int crc, const std::string buf);
DIGITAL_API unsigned int
crc32(const unsigned char *buf, size_t len);
DIGITAL_API unsigned int
crc32(const std::string buf);
} /* namespace digital */
} /* namespace gr */
#endif /* INCLUDED_CRC32_H */
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