28 lines
656 B
C
28 lines
656 B
C
/*
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* crc32.h
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*
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* Created on: Jun 22, 2020
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* Author: BJones
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*/
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#pragma once
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#ifndef CRC32_H_
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#define CRC32_H_
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#include <stdint.h>
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/*
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* When any data/buffer is run through calCRC(), then the resulting CRC value
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* is appended to the end of the data/buffer and the data/buffer is rerun
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* through calCRC(), the result will be CRC32_IDENT
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*/
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#define CRC32_IDENT (0x2144DF1C) /**< CRC check value */
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#define CRC32_ISVALID(crc) ((crc) == CRC32_IDENT)
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uint32_t crc32(uint32_t crc, const unsigned char* buf, uint32_t len);
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uint32_t revcrc32(uint32_t crc, const unsigned char* buf, uint32_t len);
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#endif // CRC32_H_
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