crypto/dist/heimdal/lib/hcrypto/test_rand.c

   1 /*
   2  * Copyright (c) 2007 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37
  38 #ifdef RCSID
  39 __RCSID("$Heimdal: test_rand.c 20466 2007-04-20 08:29:05Z lha $"
  40         "$NetBSD$");
  41 #endif
  42
  43 #include <stdio.h>
  44
  45 #include <roken.h>
  46 #include <getarg.h>
  47
  48 #include "rand.h"
  49
  50
  51 /*
  52  *
  53  */
  54
  55 static int version_flag;
  56 static int help_flag;
  57 static int len = 1024 * 1024;
  58 static char *rand_method;
  59
  60 static struct getargs args[] = {
  61     { "length", 0,      arg_integer,    &len,
  62       "length", NULL },
  63     { "method", 0,      arg_string,     &rand_method,
  64       "method", NULL },
  65     { "version",        0,      arg_flag,       &version_flag,
  66       "print version", NULL },
  67     { "help",           0,      arg_flag,       &help_flag,
  68       NULL,     NULL }
  69 };
  70
  71 /*
  72  *
  73  */
  74
  75 /*
  76  *
  77  */
  78
  79 static void
  80 usage (int ret)
  81 {
  82     arg_printusage (args,
  83                     sizeof(args)/sizeof(args[0]),
  84                     NULL,
  85                     "out-random-file");
  86     exit (ret);
  87 }
  88
  89 int
  90 main(int argc, char **argv)
  91 {
  92     int idx = 0;
  93     char *buffer;
  94     char path[MAXPATHLEN];
  95
  96     setprogname(argv[0]);
  97
  98     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &idx))
  99         usage(1);
 100
 101     if (help_flag)
 102         usage(0);
 103
 104     if(version_flag){
 105         print_version(NULL);
 106         exit(0);
 107     }
 108
 109     argc -= idx;
 110     argv += idx;
 111
 112     if (argc < 1)
 113         usage(1);
 114
 115     buffer = emalloc(len);
 116
 117     if (rand_method) {
 118         if (strcasecmp(rand_method, "fortuna") == 0)
 119             RAND_set_rand_method(RAND_fortuna_method());
 120         else if (strcasecmp(rand_method, "unix") == 0)
 121             RAND_set_rand_method(RAND_unix_method());
 122         else if (strcasecmp(rand_method, "egd") == 0)
 123             RAND_set_rand_method(RAND_egd_method());
 124         else
 125             errx(1, "unknown method %s", rand_method);
 126     }
 127
 128     if (RAND_file_name(path, sizeof(path)) == NULL)
 129         errx(1, "RAND_file_name failed");
 130
 131     if (RAND_status() != 1)
 132         errx(1, "random not ready yet");
 133
 134     if (RAND_bytes(buffer, len) != 1)
 135         errx(1, "RAND_bytes");
 136
 137     rk_dumpdata(argv[0], buffer, len);
 138
 139     free(buffer);
 140
 141     if (RAND_write_file("test.file") != 1)
 142         errx(1, "RAND_write_file");
 143     if (RAND_load_file("test.file", 1024) != 1)
 144         errx(1, "RAND_load_file");
 145
 146     return 0;
 147 }