src/basic/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
  10 #pragma once
  11
  12 #include <errno.h>
  13 #include <stdbool.h>
  14 #include <stddef.h>
  15
  16 #if HAVE_GCRYPT
  17 #include <gcrypt.h>
  18
  19 #include "macro.h"
  20
  21 void initialize_libgcrypt(bool secmem);
  22 int string_hashsum(const char *s, size_t len, int md_algorithm, char **out);
  23
  24 DEFINE_TRIVIAL_CLEANUP_FUNC(gcry_md_hd_t, gcry_md_close);
  25 #endif
  26
  27 static inline int string_hashsum_sha224(const char *s, size_t len, char **out) {
  28 #if HAVE_GCRYPT
  29         return string_hashsum(s, len, GCRY_MD_SHA224, out);
  30 #else
  31         return -EOPNOTSUPP;
  32 #endif
  33 }
  34
  35 static inline int string_hashsum_sha256(const char *s, size_t len, char **out) {
  36 #if HAVE_GCRYPT
  37         return string_hashsum(s, len, GCRY_MD_SHA256, out);
  38 #else
  39         return -EOPNOTSUPP;
  40 #endif
  41 }