release/src/router/nettle/examples/io.h

   1 /* io.c
   2  *
   3  * Miscellaneous functions used by the example programs.
   4  */
   5
   6 /* nettle, low-level cryptographics library
   7  *
   8  * Copyright (C) 2002 Niels Möller
   9  *
  10  * The nettle library is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU Lesser General Public License as published by
  12  * the Free Software Foundation; either version 2.1 of the License, or (at your
  13  * option) any later version.
  14  *
  15  * The nettle library is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  17  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  18  * License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public License
  21  * along with the nettle library; see the file COPYING.LIB.  If not, write to
  22  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  23  * MA 02111-1301, USA.
  24  */
  25
  26 #ifndef NETTLE_EXAMPLES_IO_H_INCLUDED
  27 #define NETTLE_EXAMPLES_IO_H_INCLUDED
  28
  29 #include "nettle-meta.h"
  30 #include "yarrow.h"
  31
  32 #include <stdio.h>
  33
  34 extern int quiet_flag;
  35
  36 void *
  37 xalloc(size_t size);
  38
  39 void
  40 werror(const char *format, ...) PRINTF_STYLE(1, 2);
  41
  42 /* If size is > 0, read at most that many bytes. If size == 0, read
  43  * until EOF. Allocates the buffer dynamically. An empty file is
  44  * treated as an error; return value is zero, and no space is
  45  * allocated. The returned data is NUL-terminated, for convenience. */
  46
  47 unsigned
  48 read_file(const char *name, unsigned size, char **buffer);
  49
  50 int
  51 write_file(const char *name, unsigned size, const char *buffer);
  52
  53 int
  54 write_string(FILE *f, unsigned size, const char *buffer);
  55
  56 int
  57 simple_random(struct yarrow256_ctx *ctx, const char *name);
  58
  59 int
  60 hash_file(const struct nettle_hash *hash, void *ctx, FILE *f);
  61
  62 #if WITH_HOGWEED
  63 struct rsa_public_key;
  64 struct rsa_private_key;
  65
  66 int
  67 read_rsa_key(const char *name,
  68              struct rsa_public_key *pub,
  69              struct rsa_private_key *priv);
  70 #endif /* WITH_HOGWEED */
  71
  72 #endif /* NETTLE_EXAMPLES_IO_H_INCLUDED */