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31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
/*
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* This file is part of the Aaru Data Preservation Suite.
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* Copyright (c) 2019-2021 Natalia Portillo.
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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typedef struct
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{
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uint32_t crc;
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uint32_t table[256];
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} crc32_ctx;
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#define CRC32_ISO_POLY 0xEDB88320
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#define CRC32_ISO_SEED 0xFFFFFFFF
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crc32_ctx* crc32_init();
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int crc32_update(crc32_ctx* ctx, const uint8_t* data, uint32_t len);
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int crc32_final(crc32_ctx* ctx, uint32_t* crc);
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void crc32_free(crc32_ctx* ctx); |