From accf255b1ad2c89d87261c09f7779052a4711ca0 Mon Sep 17 00:00:00 2001 From: Edward Amsden Date: Wed, 29 Nov 2023 11:41:31 -0600 Subject: [PATCH] pma: wip: forgot checksum.h --- rust/ares_pma/c-src/lib/checksum.h | 66 ++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 rust/ares_pma/c-src/lib/checksum.h diff --git a/rust/ares_pma/c-src/lib/checksum.h b/rust/ares_pma/c-src/lib/checksum.h new file mode 100644 index 0000000..0269131 --- /dev/null +++ b/rust/ares_pma/c-src/lib/checksum.h @@ -0,0 +1,66 @@ +/* + * Library: libcrc + * File: include/checksum.h (herein src/includes/checksum.h) + * Author: Lammert Bies + * + * This file is licensed under the MIT License as stated below + * + * Copyright (c) 1999-2016 Lammert Bies + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * ----------- + * Accessed in 2023 by Alex Shelkovnykov on behalf of Tlon Corporation from + * https://github.com/lammertb/libcrc/tree/v2.0. + * + * Description + * ----------- + * The headerfile src/includes/checksum.h contains the definitions and + * prototypes for routines that can be used to calculate several kinds of + * checksums. + */ + +#ifndef DEF_LIBCRC_CHECKSUM_H +#define DEF_LIBCRC_CHECKSUM_H + +#include + +/* + * #define CRC_POLY_xxxx + * + * The constants of the form CRC_POLY_xxxx define the polynomials for some well + * known CRC calculations. + */ +#define CRC_POLY_32 0xEDB88320L + +/* + * #define CRC_START_xxxx + * + * The constants of the form CRC_START_xxxx define the values that are used for + * initialization of a CRC value for common used calculation methods. + */ +#define CRC_START_32 0xFFFFFFFFL + +/* + * Prototype list of global functions + */ +uint32_t crc_32(const unsigned char *input_str, size_t num_bytes); +uint32_t update_crc_32(uint32_t crc, unsigned char c); + +#endif // DEF_LIBCRC_CHECKSUM_H