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/* See LICENSE file for copyright and license details. */
#include "libsha2.h"
#include <sys/stat.h>
#include <alloca.h>
#include <errno.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifndef ALLOCA_LIMIT
# define ALLOCA_LIMIT 0
#endif
/**
* Truncate an unsigned integer to an unsigned 32-bit integer
*
* @param X:uint_least32_t The value to truncate
* @return :uint_least32_t The 32 lowest bits in `X`
*/
#define TRUNC32(X) ((X) & (uint_least32_t)0xFFFFFFFFUL)
/**
* Truncate an unsigned integer to an unsigned 64-bit integer
*
* @param X:uint_least64_t The value to truncate
* @return :uint_least64_t The 64 lowest bits in `X`
*/
#define TRUNC64(X) ((X) & (uint_least64_t)0xFFFFFFFFFFFFFFFFULL)
/**
* Process a chunk using SHA-2
*
* @param state The hashing state
* @param data The data to process
* @param len The amount of available data
* @return The amount of data processed
*/
#if defined(__GNUC__)
__attribute__((__nonnull__, __nothrow__))
#endif
size_t libsha2_process(struct libsha2_state *restrict, const unsigned char *restrict, size_t);
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