Skip to content
Snippets Groups Projects
Select Git revision
  • c15818546258359c64db2bfe7158fa26e95fcae4
  • master default
  • wip-slh-dsa-sha2-128s
  • master-updates
  • release-3.10-fixes
  • getopt-prototype
  • fix-bcrypt-warning
  • refactor-hmac
  • wip-use-alignas
  • trim-sha3-context
  • fix-gitlab-ci
  • check-fat-emulate
  • delete-digest_func-size
  • slh-dsa-shake-128f-nettle
  • slh-dsa-shake-128s-nettle
  • slh-dsa-shake-128s
  • delete-openpgp
  • ppc64-sha512
  • delete-md5-compat
  • cleanup-hmac-tests
  • ppc64-sha256
  • nettle_3.10.2_release_20250626
  • nettle_3.10.1_release_20241230
  • nettle_3.10_release_20240616
  • nettle_3.10rc2
  • nettle_3.10rc1
  • nettle_3.9.1_release_20230601
  • nettle_3.9_release_20230514
  • nettle_3.8.1_release_20220727
  • nettle_3.8_release_20220602
  • nettle_3.7.3_release_20210606
  • nettle_3.7.2_release_20210321
  • nettle_3.7.1_release_20210217
  • nettle_3.7_release_20210104
  • nettle_3.7rc1
  • nettle_3.6_release_20200429
  • nettle_3.6rc3
  • nettle_3.6rc2
  • nettle_3.6rc1
  • nettle_3.5.1_release_20190627
  • nettle_3.5_release_20190626
41 results

io.c

Blame
  • io.c 3.38 KiB
    /* io.c
     *
     * Miscellaneous functions used by the example programs.
     */
    
    /* nettle, low-level cryptographics library
     *
     * Copyright (C) 2002 Niels Mller
     *  
     * The nettle library 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.
     * 
     * The nettle 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 the nettle library; see the file COPYING.LIB.  If not, write to
     * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
     * MA 02111-1307, USA.
     */
    
    #if HAVE_CONFIG_H
    # include "config.h"
    #endif /* HAVE_CONFIG_H */
    
    #include "io.h"
    
    #include <stdarg.h>
    #include <stdlib.h>
    
    #define RANDOM_DEVICE "/dev/urandom"
    #define BUFSIZE 1000
    
    int quiet_flag = 0;
    
    void
    werror(const char *format, ...)
    {
      if (!quiet_flag)
        {
          va_list args;
          va_start(args, format);
          vfprintf(stderr, format, args);
          va_end(args);
        }
    }
    
    #define MIN(a,b) (((a) < (b)) ? (a) : (b))
    
    unsigned
    read_file(const char *name, unsigned max_size, char **contents)
    {
      unsigned size;
      unsigned done;
      char *buffer;
      FILE *f;
        
      f = fopen(name, "rb");
      if (!f)
        return 0;
    
      buffer = NULL;
    
      if (max_size && max_size < 100)
        size = max_size;
      else