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45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2021 Ozan Tezcan
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef SC_CRC32_H
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#define SC_CRC32_H
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#include <stdint.h>
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/**
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* Call once globally.
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*/
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void sc_crc32_init(void);
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/**
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* @param crc initial value, if you're not calculating crc from partial buffers,
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* it should be zero.
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* @param buf buf
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* @param len len
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* @return crc value
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*/
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uint32_t sc_crc32(uint32_t crc, const uint8_t *buf, uint32_t len);
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#endif
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