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git.ipfire.org Git - thirdparty/openssl.git/blob - apps/rand.c
2 /* ====================================================================
3 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
62 #include <openssl/bio.h>
63 #include <openssl/err.h>
64 #include <openssl/rand.h>
67 #define PROG rand_main
69 /* -out file - write to file
70 * -rand file:file - PRNG seed files
71 * -base64 - base64 encode output
72 * -hex - hex encode output
73 * num - write 'num' bytes
76 int MAIN(int, char **);
78 int MAIN(int argc
, char **argv
)
88 #ifndef OPENSSL_NO_ENGINE
95 if ((bio_err
= BIO_new(BIO_s_file())) != NULL
)
96 BIO_set_fp(bio_err
, stderr
, BIO_NOCLOSE
|BIO_FP_TEXT
);
98 if (!load_config(bio_err
, NULL
))
103 while (!badopt
&& argv
[++i
] != NULL
)
105 if (strcmp(argv
[i
], "-out") == 0)
107 if ((argv
[i
+1] != NULL
) && (outfile
== NULL
))
112 #ifndef OPENSSL_NO_ENGINE
113 else if (strcmp(argv
[i
], "-engine") == 0)
115 if ((argv
[i
+1] != NULL
) && (engine
== NULL
))
121 else if (strcmp(argv
[i
], "-rand") == 0)
123 if ((argv
[i
+1] != NULL
) && (inrand
== NULL
))
128 else if (strcmp(argv
[i
], "-base64") == 0)
135 else if (strcmp(argv
[i
], "-hex") == 0)
142 else if (isdigit((unsigned char)argv
[i
][0]))
146 r
= sscanf(argv
[i
], "%d", &num
);
147 if (r
== 0 || num
< 0)
165 BIO_printf(bio_err
, "Usage: rand [options] num\n");
166 BIO_printf(bio_err
, "where options are\n");
167 BIO_printf(bio_err
, "-out file - write to file\n");
168 #ifndef OPENSSL_NO_ENGINE
169 BIO_printf(bio_err
, "-engine e - use engine e, possibly a hardware device.\n");
171 BIO_printf(bio_err
, "-rand file%cfile%c... - seed PRNG from files\n", LIST_SEPARATOR_CHAR
, LIST_SEPARATOR_CHAR
);
172 BIO_printf(bio_err
, "-base64 - base64 encode output\n");
173 BIO_printf(bio_err
, "-hex - hex encode output\n");
177 #ifndef OPENSSL_NO_ENGINE
178 setup_engine(bio_err
, engine
, 0);
181 app_RAND_load_file(NULL
, bio_err
, (inrand
!= NULL
));
183 BIO_printf(bio_err
,"%ld semi-random bytes loaded\n",
184 app_RAND_load_files(inrand
));
186 out
= BIO_new(BIO_s_file());
190 r
= BIO_write_filename(out
, outfile
);
193 r
= BIO_set_fp(out
, stdout
, BIO_NOCLOSE
| BIO_FP_TEXT
);
194 #ifdef OPENSSL_SYS_VMS
196 BIO
*tmpbio
= BIO_new(BIO_f_linebuffer());
197 out
= BIO_push(tmpbio
, out
);
206 BIO
*b64
= BIO_new(BIO_f_base64());
209 out
= BIO_push(b64
, out
);
214 unsigned char buf
[4096];
218 if (chunk
> (int)sizeof(buf
))
220 r
= RAND_bytes(buf
, chunk
);
224 BIO_write(out
, buf
, chunk
);
227 for (i
= 0; i
< chunk
; i
++)
228 BIO_printf(out
, "%02x", buf
[i
]);
234 (void)BIO_flush(out
);
236 app_RAND_write_file(NULL
, bio_err
);
240 ERR_print_errors(bio_err
);