/usr/include/libroar/crc.h is in libroar-dev 1.0~beta11-10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2014
*
* This file is part of libroar a part of RoarAudio,
* a cross-platform sound system for both, home and professional use.
* See README for details.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3
* as published by the Free Software Foundation.
*
* libroar 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* NOTE for everyone want's to change something and send patches:
* read README and HACKING! There a addition information on
* the license of this document you need to read before you send
* any patches.
*
* NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
* or libpulse*:
* The libs libroaresd, libroararts and libroarpulse link this lib
* and are therefore GPL. Because of this it may be illigal to use
* them with any software that uses libesd, libartsc or libpulse*.
*/
#ifndef _LIBROARCRC_H_
#define _LIBROARCRC_H_
#include "libroar.h"
uint32_t roar_crc24_add(uint32_t state, const void * data, size_t len);
#define roar_crc24_init() roar_crc24_add(0, NULL, 0)
uint32_t roar_adler32_add(uint32_t state, const void * data, size_t len);
#define roar_adler32_init() roar_adler32_add(0, NULL, 0)
int roar_hash_crc24_init(void * state);
int roar_hash_crc24_digest(void * state, void * digest, size_t * len);
int roar_hash_crc24_proc(void * state, const void * data, size_t len);
int roar_hash_adler32_init(void * state);
int roar_hash_adler32_digest(void * state, void * digest, size_t * len);
int roar_hash_adler32_proc(void * state, const void * data, size_t len);
#endif
//ll
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