sha256_ext.h

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/*
     This file is part of GNU libmicrohttpd
     Copyright (C) 2022 Evgeny Grin (Karlson2k)

     GNU libmicrohttpd is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.

     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.

     You should have received a copy of the GNU Lesser General Public
     License along with GNU libmicrohttpd.
     If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef MHD_SHA256_EXT_H
#define MHD_SHA256_EXT_H 1

#include "mhd_options.h"
#include <stdint.h>
#ifdef HAVE_STDDEF_H
#include <stddef.h>  /* for size_t */
#endif /* HAVE_STDDEF_H */

#define SHA256_DIGEST_SIZE (32)

/* Actual declaration is in GnuTLS lib header */
struct hash_hd_st;

#define MHD_SHA256_HAS_EXT_ERROR 1

struct Sha256CtxExt
{
  struct hash_hd_st *handle; 
  int ext_error; 
};

#define MHD_SHA256_HAS_INIT_ONE_TIME 1

void
MHD_SHA256_init_one_time (struct Sha256CtxExt *ctx);


void
MHD_SHA256_update (struct Sha256CtxExt *ctx,
                   const uint8_t *data,
                   size_t length);


#define MHD_SHA256_HAS_FINISH_RESET 1

void
MHD_SHA256_finish_reset (struct Sha256CtxExt *ctx,
                         uint8_t digest[SHA256_DIGEST_SIZE]);

#define MHD_SHA256_HAS_DEINIT 1

void
MHD_SHA256_deinit (struct Sha256CtxExt *ctx);

#endif /* MHD_SHA256_EXT_H */