src/shared/gcrypt-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2016 Zbigniew Jędrzejewski-Szmek
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <errno.h>
  24 #include <stdbool.h>
  25 #include <stddef.h>
  26
  27 #if HAVE_GCRYPT
  28 #include <gcrypt.h>
  29
  30 void initialize_libgcrypt(bool secmem);
  31 int string_hashsum(const char *s, size_t len, int md_algorithm, char **out);
  32 #endif
  33
  34 static inline int string_hashsum_sha224(const char *s, size_t len, char **out) {
  35 #if HAVE_GCRYPT
  36         return string_hashsum(s, len, GCRY_MD_SHA224, out);
  37 #else
  38         return -EOPNOTSUPP;
  39 #endif
  40 }
  41
  42 static inline int string_hashsum_sha256(const char *s, size_t len, char **out) {
  43 #if HAVE_GCRYPT
  44         return string_hashsum(s, len, GCRY_MD_SHA256, out);
  45 #else
  46         return -EOPNOTSUPP;
  47 #endif
  48 }