ref: 1aa974054274a4f59dfa59c88bb9a85461eca113
dir: lwext4/include/ext4_crc32.h
/*
* Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
* All rights reserved.
*
* Based on FreeBSD.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup lwext4
* @{
*/
/**
* @file ext4_crc32.h
* @brief Crc32c routine. Taken from FreeBSD kernel.
*/
#ifndef LWEXT4_EXT4_CRC32C_H_
#define LWEXT4_EXT4_CRC32C_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <ext4_config.h>
#include <stdint.h>
/**@brief CRC32 algorithm.
* @param crc input feed
* @param buf input buffer
* @param size input buffer length (bytes)
* @return updated crc32 value*/
uint32_t ext4_crc32(uint32_t crc, const void *buf, uint32_t size);
/**@brief CRC32C algorithm.
* @param crc input feed
* @param buf input buffer
* @param length input buffer length (bytes)
* @return updated crc32c value*/
uint32_t ext4_crc32c(uint32_t crc, const void *buf, uint32_t size);
#ifdef __cplusplus
}
#endif
#endif /* LWEXT4_EXT4_CRC32C_H_ */
/**
* @}
*/