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fletcher16.h
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1/*
2 * SPDX-FileCopyrightText: 2015 Eistec AB
3 * SPDX-License-Identifier: LGPL-2.1-only
4 */
5
6#pragma once
7
18
19#include <stdlib.h>
20#include <stdint.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
29typedef struct {
30 uint16_t sum1;
31 uint16_t sum2;
32} fletcher16_ctx_t;
33
48uint16_t fletcher16(const uint8_t *buf, size_t bytes);
49
57void fletcher16_init(fletcher16_ctx_t *ctx);
58
66void fletcher16_update(fletcher16_ctx_t *ctx, const uint8_t *data, size_t len);
67
75uint16_t fletcher16_finish(fletcher16_ctx_t *ctx);
76
77#ifdef __cplusplus
78}
79#endif
80
fletcher16
uint16_t fletcher16(const uint8_t *buf, size_t bytes)
Fletcher's 16 bit checksum .
fletcher16_update
void fletcher16_update(fletcher16_ctx_t *ctx, const uint8_t *data, size_t len)
Update the fletcher16 context with new data.
fletcher16_finish
uint16_t fletcher16_finish(fletcher16_ctx_t *ctx)
Finalize the checksum operation and return the checksum.
fletcher16_init
void fletcher16_init(fletcher16_ctx_t *ctx)
Initialize a fletcher16 context.
fletcher16_ctx_t
Fletcher's 16 bit checksum context struct.
Definition fletcher16.h:29
fletcher16_ctx_t::sum2
uint16_t sum2
Second sum of the checksum.
Definition fletcher16.h:31
fletcher16_ctx_t::sum1
uint16_t sum1
First sum of the checksum.
Definition fletcher16.h:30