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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <inttypes.h>
#include <sys/types.h>
#include <sys/uio.h>
#include "macro.h"
typedef struct khash khash;
int khash_supported(void);
/* For plain hash functions. Hash functions commonly supported on today's kernels are: crc32c, crct10dif, crc32,
* sha224, sha256, sha512, sha384, sha1, md5, md4, sha3-224, sha3-256, sha3-384, sha3-512, and more. */
int khash_new(khash **ret, const char *algorithm);
/* For keyed hash functions. Hash functions commonly supported on today's kernels are: hmac(sha256), cmac(aes),
* cmac(des3_ede), hmac(sha3-512), hmac(sha3-384), hmac(sha3-256), hmac(sha3-224), hmac(rmd160), hmac(rmd128),
* hmac(sha224), hmac(sha512), hmac(sha384), hmac(sha1), hmac(md5), and more. */
int khash_new_with_key(khash **ret, const char *algorithm, const void *key, size_t key_size);
int khash_dup(khash *h, khash **ret);
khash* khash_unref(khash *h);
const char *khash_get_algorithm(khash *h);
size_t khash_get_size(khash *h);
int khash_reset(khash *h);
int khash_put(khash *h, const void *buffer, size_t size);
int khash_put_iovec(khash *h, const struct iovec *iovec, size_t n);
int khash_digest_data(khash *h, const void **ret);
int khash_digest_string(khash *h, char **ret);
DEFINE_TRIVIAL_CLEANUP_FUNC(khash*, khash_unref);
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